Tag Archives: condition

Acupuncture for chronic pain in Bedford, UK

Chronic Pain – Condition Resources

See also: Our in-depth blog about the NICE guidelines regarding recommendation of acupuncture for Chronic Pain, which is an evidence based piece informing NHS practise.

Important to know: Chronic health conditions should be addressed under direct medical supervision of your GP or consultant, acupuncture would be an adjunct or complement to usual care – we advise that you let you doctor know when you use this approach.

There are many painful conditions for which patients seek acupuncture to address their symptoms. We have dedicated pages for arthritis, back pain, carpal tunnel, facial (TMJ) pain, shoulder and frozen shoulder, headache, migraine, kidney stones, plantar fasciitis, knee pain, sciatica, neuropathic (nerve) pain, rheumatoid arthritis, tennis and golfer’s elbow, neck pain, and pelvic pain each of which give references and further resources to evidence based factsheets and may be of use.

A scholarly search of the available research papers on the terms “acupuncture” + “chronic pain” yields over 52,000 papers, and narrowing this to “RCT” to identify Randomised Controlled Trials, gives over 7,000 results; of which 36% have been carried out since 2017 (Google Scholar). This suggests that acupuncture is being used traditionally and currently in this area, research has been carried out, the pace of which is increasing in recent years, therefore indicating that it merits of scientific appraisal and consideration in the field.

“Acupuncture has been widely applied to alleviate several pain diseases and incorporated into guidelines, and it is an effective method of coping with the opioid crisis and is widely respected due to its safety, low price, and low addiction” – Zhang et al, 2022

Interpreting the research:

When reading health research, it is important to know that Systematic Reviews or Meta Analyses of a large number of high-quality research studies are the very best way to be able to say to what extent a given treatment can address a condition, symptom, or set of symptoms.  The next best level of evidence is the individual Randomised Controlled Study (RCT) which uses a systematic technique to compare two or more groups of patients receiving different treatments (or a treatment against a “control”, or no treatment).  In acupuncture trials, the nature of the control group is of particular interest as it is hard to blind a patient to whether they are having a needle inserted or not, and even more challenging to blind the researcher/team to this.

The means and quality of how research is carried out varies considerably from country to country, and in terms of how an intervention is compared to another intervention (or a control).  Of note is the fact that “sham” acupuncture (where needles are placed in apparently inert locations rather than traditional acupuncture points) is not really an inert process as it has physiological effects, so that comparing sham and “true acupuncture” may therefore not give a clear picture alone; but and form a part of a research body where acupuncture versus no treatment, vs conventional treatment or vs a different approach/modality also form part of the evidence base.

The n= figure (where quoted in research) tells you how many people were participants in the study, and usually the larger a study (when it is of good quality and design), the more likely it is to be reliable and applicable to larger populations. When (statistical) “significance” is discussed in view of studies it has a very particular meaning – it is the confidence in the data (using statistical tests) that tells us how likely a result could have just come about by chance. The lower the possibility of a chance result, the more likely it is due to the intervention in the experiment. When you are reading a trial/study, the “p” is the number telling us of significance, and this must be under 5% (or p less than 0.05) to mean we can say it is a (statistically) “significant” result.

Chronic Pain in General

“Acupuncture is effective for the treatment of chronic musculoskeletal, headache, and osteoarthritis pain. Treatment effects of acupuncture persist over time and cannot be explained solely in terms of placebo effects. Referral for a course of acupuncture treatment is a reasonable option for a patient with chronic pain”. (Vickers et al, 2018; large chronic pain review of high quality RCTs updating a previous meta-analysis; 39 trials, n=20827; conditions addressed chronic headache, back/neck pain and osteoarthritis)

Another recent overview (Yin et al, 2017) confirms that there is increasing evidence for acupuncture  as an effective, safe, and cost-effective intervention in chronic low back, neck, shoulder, and knee pain, as well as headaches.

Acupuncture stimulates the body to create its own natural painkilling substances, such as Beta Endorphins (β-Endorphin). In studies acupuncture has been shown to stimulate the production of natural painkillers called opioid-like peptides (OLPs), including β-Endorphin: For example, this was shown in an RCT in 90 patients with a range of painful disorders (Petti et al, 1998). The same study showed acupuncture also and enhanced the activity of immune cells (lymphocytes, natural killer cells and monocytes) that help fight infections and diseases (Petti et al, 1998).

NICE (NHS advisory body) Recommendation:

The NHS body in charge of which treatments should be used in particular conditions recommends acupuncture for chronic pain:  The NICE Scenario Management guidelines (2021) for chronic pain state: “consider a course of acupuncture or dry needling, within a traditional Chinese or Western acupuncture system”

In America, the NIH (National Institutes of Health) has recognised since 1997 that acupuncture alleviates pain (Zhang et al, 2022). Overall, a large systematic review has found acupuncture a cost effective intervention for several painful conditions (Ambrósio et al, 2012).

Mechanisms of Action on Pain:

Acupuncture studies have shown it can: provide pain relief by stimulating nerves in body tissues and leading to endorphin release (natural painkilling substances), as well as downregulating the brain and nervous system’s reaction to stress and pain (Zhao 2008; Zijlstra et al, 2003; Pomeranz, 1987).

Acupuncture has been shown in animal models to promote the release of factors that involved in the reduction of inflammation (vascular and immunomodulatory factors – (Kim et al, 2008; Kavoussi and Ross, 2007 [review article]; Zijlstra et al, 2003), and also to affect levels of serotonin (in an animal model), and other peptides in the brain and nervous system and modulate blood flow in the brain and elsewhere in the body, in humans (Zhong and Li, 2007; Shi et al, 2010).

Very specific effects have been seen on a number of neurotransmitters, when acupuncture treatment is given, and to investigate this, a large and growing body of evidence has accumulated from clinical experiments with animal models, where levels of neurotransmitters and their effects are measured objectively; and because the animal is not aware of the intended outcomes, this drastically reduces any influence of placebo effect, as a cause of pain relief. 

Human trials, where measurable in an ethical and objective way, are also employed through fMRI (brain scans showing which areas are stimulated or downregulated in acupuncture treatment), measuring blood levels of neurotransmitters as well as pain ratings for an objective approach.

The role of acupuncture in modulating neurotransmitters involved in pain has been well discussed. Zhang et al (2022) outlined the research on each of the main observed neurotransmitter roles that have been researched in acupuncture for pain: those are opioid peptides; γ-Aminobutyric acid (GABA); Norepinephrine; 5-Hydroxytryptamine (5-HT – aka serotonin); and glutamate.  Overall for these neurotransmitters (in turn), the following are the highlights from the research body per Zhang and colleagues:

  • Endogenous opioid peptides are produced in the body as a direct result of acupuncture, and have a positive effect on analgesia (pain relief).  By name, these are enkephalins, endomorphins, dynorphins, and nociceptin, and these are the body’s own natural painkilling substances, types of neurotransmitters, or chemical messengers of the nervous system
  • γ-Aminobutyric acid (GABA) is an inhibitory neurotransmitter in the central nervous system.  It has a painkilling effect, and it has been demonstrated that acupuncture can upregulate GABA expression; another part of how acupuncture helps with pain
  • Norepinephrine (noradrenalin in the UK), is a neurotransmitter, the release of which is enhances by acupuncture; this influences pain because norepinephrine is also capable of inhibiting pain in the body
  • 5-Hydroxytryptamine (5-HT), or serotonin; is a neurotransmitter that is involved in analgesia (pain relief).  5-HT is secreted in the brain during acupuncture administration, making it another known mechanism of action for acupuncture’s ability to help pain
  • Glutamate is a central nervous system neurotransmitter (chemical messenger), and is involved in the transmission of pain signals in the spinal cord.  Acupuncture downregulates glutamate, as part of how it provides pain relief

Zijlstra et al (2003) reviewed the effects and mechanisms of acupuncture in treating various inflammatory diseases and conditions. They proposed the mechanisms of action:

  • Acupuncture may release neuropeptides from nerve endings that have vasodilative and anti-inflammatory effects through CGRP.
  • Acupuncture may also interact with substance P, which is involved in pain transmission and inflammation.
  • Acupuncture may contribute to analgesia by stimulating the release of β-endorphin, which binds to opioid receptors and inhibits pain signals.
  • Acupuncture may influence the balance between cell-specific pro-inflammatory and anti-inflammatory cytokines such as TNF-α and IL-10.

CSR and ERP are blood tests related to the functioning of the immune system, that can measure and monitor inflammation in the body.  They are relevant to conditions such as Rheumatoid Arthritis, and other immune and inflammatory conditions.  Per a review by Feng at al, (2023) electroacupuncture (EA) plus medication had a significant effect in lowering both ESR and CRP levels in patients with RA compared with medication alone.  These results suggest that EA may have an anti-inflammatory effect and improve the immune status of patients with RA.

In an animal study, Sun et al, (2023) were able to show that electroacupuncture worked by blocking a pathway in the synovium called TLR2/4, that activates immune response and inflammation.  The researchers therefore suggested the anti-inflammatory and analgesic effects of EA were related to the inhibition of TLR2/4 signalling on synovial fibroblasts and macrophages.

Liu et al (2013) investigated the anti-inflammatory effect of electroacupuncture (EA) in a rat tissue chamber model of inflammation. The study found that EA inhibited the p65 protein from moving to the cell nucleus to activate inflammatory genes.  EA also increased the expression of IκBα, which binds to NF-κB and preventing it from entering the nucleus to activate inflammatory genes. These interfere with the IκB/NF-κB pathway that regulates inflammation, indicating one of the mechanisms of acupuncture in modulating immune / inflammatory response.

Inflammatory and Immune Aspects in Research

Wang et al (2023) reviewed evidence from animal and human studies regarding the immunomodulatory mechanism of acupuncture, regarding its effects on different components of the immune system, such as mast cells, macrophages, neutrophils, natural killer cells, astrocytes, microglia, CD4+ and CD8+ T cells, and cytokines.  They detailed the neuroanatomical mechanisms of acupuncture in immunomodulation, such as the vagal-adrenal pathway, the cholinergic anti-inflammatory pathway, the spinal sympathetic pathway, the brain-gut axis, and the hypothalamus-pituitary-adrenal axis.  They concluded that studies to support the role of acupuncture in regulating inflammation, infection, allergy, pain, and tissue repair.

Per MacDonald et al (2015), acupuncture may:

  • reduce inflammation and nasal congestion by downregulating proinflammatory neuropeptides, cytokines, and neurotrophins
  • modulate immune function by altering the balance of Th1 and Th2 cells and suppressing mast cell degranulation
  • influence various receptors and signalling pathways that are involved in inflammatory response, such as TRPV1, opioid, chemokine, dopamine, and cannabinoid receptors
  • activate a novel cholinergic anti-inflammatory pathway that involves vagal and sciatic nerves and is mediated by dopamine

Electroacupuncture (EA) has been shown in a rat model (Li et al, 2008) to have anti-inflammatory benefits by modulating the hypothalamic-pituitary-adrenal (HPA) axis, (HPA axis regulates the stress response and immune function).  Specifically, Li et al outlined that EA sets off a cascade in the brain (via corticotropin-releasing hormone, and adrenocorticotropic hormone) to produce cortisol, which reduces inflammation and oedema.

Acupuncture can activate mast cells at acupoints, which release histamine, serotonin, adenosine, and other mediators that modulate nerve transmission and inflammation (Li et al, 2022)

Overall, per the research it can be seen that a combination of demonstratable mechanisms is at play; as measured and observed to be the cause of why acupuncture has been shown in so many practical studies to help a number of different types of pain. 

Regarding Your Individual Condition and Symptoms:

Whilst the scientific studies are of great interest to researchers and acupuncturists in terms of comparing protocols, for the patient not versed in research they are less accessible, which is why when we asked “can acupuncture work for my (condition or symptom) we are not able to give a simple yes or no response.  We are able to tell you what experience we have had in our decades of experience in practise, of the types of outcomes we have seen in similar cases, and give you an idea of our level of experience and knowledge in that area, and how this could relate to your own individual situation.  For this, we recommend booking a free telephone consultation where we can answer any questions you have and give a realistic appraisal of what acupuncture may be able to provide.

Resources:

NICE Guidelines (2021) Chronic pain (primary and secondary) in over 16s: assessment of all chronic pain and management of chronic primary pain
NICE guideline
[NG193]Published: 07 April 2021

Evidence Based Acupuncture Osteoarthritis Factsheet

Evidence Based Acupuncture Pain Factsheet

Evidence Based Acupuncture Cancer Pain Factsheet

BAcC Back Pain Factsheet

BAcC Facial Pain Factsheet

BAcC Frozen Shoulder Factsheet

BAcC Headache Factsheet

BACC Neck Pain Factsheet

BAcC Osteoarthritis of the Knee Factsheet

References:

Chronic Pain in General, References:

Ambrósio, E.M.M., Bloor, K. and MacPherson, H., 2012. Costs and consequences of acupuncture as a treatment for chronic pain: a systematic review of economic evaluations conducted alongside randomised controlled trials. Complementary therapies in medicine20(5), pp.364-374.

Vickers, A.J., Vertosick, E.A., Lewith, G., MacPherson, H., Foster, N.E., Sherman, K.J., Irnich, D., Witt, C.M., Linde, K. and Acupuncture Trialists’ Collaboration, 2018. Acupuncture for chronic pain: update of an individual patient data meta-analysis. The Journal of Pain, 19(5), pp.455-474.

Birch, S., Lee, M.S., Alraek, T. and Kim, T.H., 2018. Overview of treatment guidelines and clinical practical guidelines that recommend the use of acupuncture: a bibliometric analysis. The Journal of Alternative and Complementary Medicine24(8), pp.752-769.

NICE 2021 Chronic pain: Scenario: Management Last revised in April 2021

Yin, C., Buchheit, T.E. and Park, J.J., 2017. Acupuncture for chronic pain: an update and critical overview. Current opinion in anaesthesiology30(5), pp.583-592.

Mechanism of Action References:

Feng, Y., Zhang, R., Zhao, Z., He, Y., Pang, X., Wang, D. and Sun, Z., 2023. Efficacy and safety of electroacupuncture combined with medication for rheumatoid arthritis: A systematic review and meta-analysis. Heliyon.

Kavoussi B, Ross BE. The neuroimmune basis of anti-inflammatory acupuncture. Integr Cancer Ther. 2007 Sep;6(3):251-7.

Kim HW, Uh DK, Yoon SY et al. Low-frequency electroacupuncture suppresses carrageenan-induced paw inflammation in mice via sympathetic post-ganglionic neurons, while high-frequency EA suppression is mediated by the sympathoadrenal medullary axis. Brain Res Bull. 2008 Mar 28;75(5):698-705.

Li, A., Lao, L., Wang, Y., Xin, J., Ren, K., Berman, B.M., Tan, M. and Zhang, R., 2008. Electroacupuncture activates corticotrophin-releasing hormone-containing neurons in the paraventricular nucleus of the hypothalammus to alleviate edema in a rat model of inflammation. BMC Complementary and Alternative Medicine8(1), pp.1-8.

Li, Y., Yu, Y., Liu, Y. and Yao, W., 2022. Mast cells and acupuncture analgesia. Cells11(5), p.860.

Liu, F., Fang, J., Shao, X., Liang, Y., Wu, Y. and Jin, Y., 2014. Electroacupuncture exerts an anti-inflammatory effect in a rat tissue chamber model of inflammation via suppression of NF-κB activation. Acupuncture in Medicine32(4), pp.340-345.

McDonald, J.L., Cripps, A.W. and Smith, P.K., 2015. Mediators, receptors, and signalling pathways in the anti-inflammatory and antihyperalgesic effects of acupuncture. Evidence-Based Complementary and Alternative Medicine2015.

Petti, F.., Bangrazi, A., Liguori, A., Reale, G. and Ippoliti, F., 1998. Effects of acupuncture on immune response related to opioid-like peptides. Journal of Traditional Chinese Medicine 18(1), pp.55-63.

Pomeranz B. Scientific basis of acupuncture. In: Stux G, Pomeranz B, eds. Acupuncture Textbook and Atlas. Heidelberg: Springer-Verlag; 1987:1-18.

Shi H, Li JH, Ji CF, Shang HY, Qiu EC et al.[Effect of electroacupuncture on cortical spreading depression and plasma CGRP and substance P contents in migraine rats]. Zhen Ci Yan Jiu. 2010 Feb;35(1):17-21.

Sun, S.Y., Yan, Q.Q., Qiao, L.N., Shi, Y.N., Tan, L.H. and Yang, Y.S., 2023. Electroacupuncture Alleviates Pain Responses and Inflammation in Collagen-Induced Arthritis Rats via Suppressing the TLR2/4-MyD88-NF-κB Signaling Pathway. Evidence-Based Complementary and Alternative Medicine2023.

Wang, M., Liu, W., Ge, J. and Liu, S., 2023. The immunomodulatory mechanisms for acupuncture practice. Frontiers in Immunology14.

Zhang, M., Shi, L., Deng, S., Sang, B., Chen, J., Zhuo, B., Qin, C., Lyu, Y., Liu, C., Zhang, J. and Meng, Z., 2022. Effective oriental magic for analgesia: acupuncture. Evidence-Based Complementary and Alternative Medicine, 2022.

Zhao ZQ. Neural mechanism underlying acupuncture analgesia. Prog Neurobiol. 2008 Aug;85(4):355-75.

Zhong G.-W. Li W. Effects of acupuncture on 5-hydroxytryptamine1F and inducible nitricoxide synthase gene expression in the brain of migraine rats. Journal of Clinical Rehabilitative Tissue Engineering Research. 2007;11(29)(pp 5761-5764)

Zijlstra FJ, van den Berg-de Lange I, Huygen FJ, Klein J. Anti-inflammatory actions of acupuncture. Mediators Inflamm. 2003 Apr;12(2):59-69.

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Acupuncture for fertility in Bedford, UK

Infertility IVF, ART, ICSI- Condition Resources

Important to know: Chronic health conditions should be addressed under direct medical supervision of your GP or consultant, and acupuncture would be an adjunct or complement to usual care – we advise that you let you doctor know when you use this approach.

Acupuncture is a very popular approach for those looking to conceive. See our blog on the research that has been done into the use of acupuncture for fertility reasons

The British Acupuncture Council has produced an evidence based factsheet about Female Fertility, as well as one on Male Fertility and acupuncture approaches, including specific research, trials and mechanisms of action for acupuncture for this (links are below).

A systematic review and meta-analysis of studies in the peer-reviewed British Medical Journal (Manheimer et al, 2008) found that complementing the embryo transfer process with a specific traditional acupuncture protocol had a positive effect on the birth rate of sub fertile women having IVF/ICSI treatment.

About the research:

When reading health research, it is important to know that Systematic Reviews** or Meta Analyses of a large number of high-quality research studies are the very best way to be able to say to what extent a given treatment can address a condition, symptom, or set of symptoms.  The next best level of evidence is the individual Randomised Controlled Study* (RCT) which uses a systematic technique to compare two or more groups of patients receiving different treatments (or a treatment against a “control”, or no treatment).  In acupuncture trials, the nature of the control group is of particular interest as it is hard to blind a patient to whether they are having a needle inserted or not, and even more challenging to blind the researcher/team to this.

The means and quality of how research is carried out varies considerably from country to country, and in terms of how an intervention is compared to another intervention (or a control).  Of note is the fact that “sham” acupuncture (where needles are placed in apparently inert locations rather than traditional acupuncture points) is not really an inert process as it has physiological effects, so that comparing sham and “true acupuncture” may therefore not give a clear picture alone; but and form a part of a research body where acupuncture versus no treatment, vs conventional treatment or vs a different approach/modality also form part of the evidence base.

The n= figure (where quoted in research) tells you how many people were participants in the study, and usually the larger a study (when it is of good quality and design), the more likely it is to be reliable and applicable to larger populations. When (statistical) “significance” is discussed in view of studies it has a very particular meaning – it is the confidence in the data (using statistical tests) that tells us how likely a result could have just come about by chance. The lower the possibility of a chance result, the more likely it is due to the intervention in the experiment. “p” is the number telling us of significance, and this must be under 5% (or p less than 0.05) to mean we can say it is a (statistically) “significant” result.

A popular and evidence-based choice

Acupuncture is a popular choice for fertility and conception support, having had mainstream media exposure since 2008, when a large meta-analysis of scientific studies was published in the British Medical Journal (BMJ – Manheimer et al, 2008), and which showed acupuncture’s efficacy in increasing pregnancy rates from IVF procedures, compared to IVF procedures alone. A more recent Iranian RCT study reflected this, (Dehghani et al, 2020) when they looked IVF pregnancy rates with and without acupuncture treatment. They used 3 groups in cluding a control (n=186) and found that: “Acupuncture 25 min before ET [embryo transfer] significantly increased the IVF outcomes in women undergoing IVF compared with no acupuncture.

A large body of evidence in this area has grown, both for natural and IVF, ICSI and other types of assisted fertility (ART) procedures.  These studies show that acupuncture improves blood flow to the uterus and ovaries (Khorram et al, 2005, Stener-Victorin et al, 1996), improves the thickness of the endometrium (uterus lining) and regulates the levels of the key hormones that govern the conception process, FSH, LH, GnRH, progesterone and oestrogen (Yu et al, 2007; Zhang et al, 2018; Stener-Victorin, 2006).

Acupuncture is also effective in PCOS (polycystic ovarian syndrome), and can regulate the menstrual cycle and stimulate ovulation (Lim et al, 2010, Stener-Victorin et al, 2014).

Regarding Your Individual Condition and Symptoms:

Whilst the scientific studies are of great interest to researchers and acupuncturists in terms of comparing protocols, for the patient not versed in research they are less accessible, which is why when we asked “can acupuncture work for my (condition or symptom) we are not able to give a simple yes or no response, we are able to tell you in the decades of experience we personally have at the clinic of the types of outcomes we have seen in similar cases, and give you an idea of our level of experience and knowledge in that area, which is why the research data do not tell the whole story and if you want to find out more specific information in how this could relate to your own individual situation, we recommend booking a free telephone consultation where we can answer any questions you have and give a realistic appraisal of what acupuncture may be able to provide.

Resources:

British Acupuncture Council evidence based factsheet about Female Fertility, and approaches to treatment including specific research, trials and mechanisms of action for acupuncture in this condition.

BAcC Male Fertility factsheet

BAcC Fertility and ART (assisted reproduction – IVF/ICSI) factsheet

BAcC PCOS (Polycystic Ovarian Syndrome) factsheet

BAcC Female fertility & IVF briefing paper

References:

Dehghani, A.S., Homayouni, K., Kanannejad, Z. and Kanannejad, Z., 2020. The effect of acupuncture on the day of embryo transfer on the in vitro fertilization outcomes: An RCT. International journal of reproductive biomedicine18(3), p.209.

Khorram, N.M.; S. Horton, V. Sahakian The Effect of Acupuncture on Outcome of in Vitro Fertilization Fertility and Sterility, Vol.84, S364

Manheimer, E; Zhang, G; Udoff, L; Haramati, A; Langenberg, P; Berman, BM; Bouter, LM; (2008) Effects of acupuncture on rates of pregnancy and live birth among women undergoing in vitro fertilisation: systematic review and meta-analysis BMJ (2008) 336:517-518 

Stener-Victorin E, Waldenstram U, Andersson SA, Wikland M. Reduction of blood flow impedance in the uterine arteries of infertile women with electro-acupuncture. Hum Reprod. 1996 Jun;11(6):1314-7.

Stener-Victorin, E;A. Benrick, M. Kokosar, M. Maliqueo, C. Behre, K. H¸jlund, A. Sazonova Acupuncture increases whole body glucose uptake during and after stimulation in women with polycystic ovary syndrome Fertility and Sterility, Vol.102:3, e29 Published in issue: September 2014

Yu, B. Horn, B. Acacio, D. Ni, R. Quintero, M. NourianiA Pilot Study Evaluating the Combination of Acupuncture with Sildenafil on Endometrial Thickness Fertility and Sterility, Vol.87:4, S23

Zhang, X., Lee, M.S., Smith, C.A., Robinson, N., Zhou, Y., Wu, Y., Mao, Y.Y. and Qu, F., 2018. Effects of acupuncture during in vitro fertilization or intracytoplasmic sperm injection: An updated systematic review and meta-analysis. European Journal of Integrative Medicine23, pp.14-25.

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Acupuncture for the Cardiovascular system in Bedford, UK

Angina, Arrhythmias, Coronary Heart Disease, and Heart Failure- Condition Resources

Important to know: Chronic health conditions should be addressed under direct medical supervision of your GP or consultant, and acupuncture would be an adjunct or complement to usual care – we advise that you let you doctor know when you use this approach.

The British Acupuncture Council (BAcC) has produced an evidence based factsheet about Angina, Coronary Heart Disease, Atrial Fibrillation and Heart Failure including specific research, trials and mechanisms of action for acupuncture in this condition, we recommend taking a look via the underlined link above. Their Factsheet on Hypertension, High Blood Pressure may also be of interest.

Research and Resources on Arrhythmia and Heart Failure and Acupuncture:

A scholarly search of the available research studies on “acupuncture” +”arrhythmia” reveals over 7,400 papers from journals, and narrowing this to “RCT” leads to over 630 hits, of which 40% have been carried out since 2017. A scholarly search of the available research studies on “acupuncture” + “heart failure” reveals over 18,000 papers from journals, and narrowing this to “RCT” leads to over 1,700 hits, of which 52% have been carried out since 2017.  From this we can deduce that acupuncture is being used traditionally and currently in this area; scientifically researched for this, and that the pace of the research is increasing – leading us to see these as areas worthy of scientific appraisal and consideration.  

Interpreting the research:

When reading health research, it is important to know that Systematic Reviews or Meta Analyses of a large number of high-quality research studies are the very best way to be able to say to what extent a given treatment can address a condition, symptom, or set of symptoms.  The next best level of evidence is the individual Randomised Controlled Study (RCT) which uses a systematic technique to compare two or more groups of patients receiving different treatments (or a treatment against a “control”, or no treatment).  In acupuncture trials, the nature of the control group is of particular interest as it is hard to blind a patient to whether they are having a needle inserted or not, and even more challenging to blind the researcher/team to this.

The means and quality of how research is carried out varies considerably from country to country, and in terms of how an intervention is compared to another intervention (or a control).  Of note is the fact that “sham” acupuncture (where needles are placed in apparently inert locations rather than traditional acupuncture points) is not really an inert process as it has physiological effects, so that comparing sham and “true acupuncture” may therefore not give a clear picture alone; but and form a part of a research body where acupuncture versus no treatment, vs conventional treatment or vs a different approach/modality also form part of the evidence base.

The n= figure (where quoted in research) tells you how many people were participants in the study, and usually the larger a study (when it is of good quality and design), the more likely it is to be reliable and applicable to larger populations. When (statistical) “significance” is discussed in view of studies it has a very particular meaning – it is the confidence in the data (using statistical tests) that tells us how likely a result could have just come about by chance. The lower the possibility of a chance result, the more likely it is due to the intervention in the experiment. When you are reading a trial/study, the “p” is the number telling us of significance, and this must be under 5% (or p less than 0.05) to mean we can say it is a (statistically) “significant” result.

Angina Pectoris

A systematic review and meta-analysis of 12 studies (Lu et al, 2022; n=1203) looked at treating cardiovascular disease complicated with depression, and found that acupuncture reduced HAMD (Hamilton scale for depression) score, SDS (self-rating depression scale) score and also reduced the attack frequency of angina pectoris and the VAS (visual analogue scale) score for angina pain. They concluded that acupuncture could be a good complementary and alternative therapy for CVD complicated with depression.

Atrial Fibrillation

Lomuscio et al, 2011 (n=80) concluded that acupuncture prevented arrhythmic recurrences after cardioversion in patients with persistent AF, and was safe and well tolerated. 

Li et al, (2022) made a meta-analysis and systematic review of RCTs that had compared acupuncture with pharmacological conversion for treating atrial fibrillation.  They looked at 11 papers, and concluded that “ acupuncture significantly effectively benefitted the patients with atrial fibrillation”, and overall combining the pharmacological (medicinal) cardioversion with acupuncture was significantly more beneficial than was the pharmacological approach alone.

Following Valve Surgery:  Cardioprotective Effects

Feingold et al, 2023 (n=100) carried out an RCT with 100 patients undergoing primary valve surgery via sternotomy.  They found acupuncture after valve surgery to be feasible, well tolerated, and having clinical benefit.  Specifically, there were no adverse events, and the acupuncture group had reduction in pain, nausea, stress, and anxiety, as well as reduced postoperative stress and anxiety and reduced postoperative atrial and fewer hours in the intensive care unit than those patients on standard care alone.

Yang et al, (2010, n-=60) conducted an RCT to investigate the cardioprotective effects of electroacupuncture (EA) pretreatment on patients undergoing heart valve replacement surgery.  They measured the levels of cardiac troponin I (CTnI) which is a protein released into the blood when the heart muscle is damaged (e.g. during a heart attack).  Other outcomes, such as blood pressure, heart rate, use of drugs, and length of stay in the intensive care unit (ICU) were also compared between a pretreatment group and a control (no acupuncture) group.  They found that EA pretreatment significantly lowered the levels of CTnI in acupuncture patients after surgery vs control, therefore EA pretreatment reduced the amount of heart injury caused by the surgery.  EA pretreatment also reduced the use of drugs such as inotropes, after surgery (indicating more improved heart function after surgery, shortened stay in ICU; versus the non-acupuncture group.

Coronary Artery Disease, PCI procedure

Ho et al, (1999, n=44) looked at the PC6 point also (note, Nei-Kuan is an alternative spelling), in their case they examined that effect upon Left Ventricular Function in Patients with Coronary Artery Disease (CAD).  The left ventricle is the main pumping chamber of the heart, and in CAD, the blood vessels that supply heart become narrowed or blocked by fatty deposits called plaque.  The study measured how much blood the left ventricle pumps out with each contraction (left ventricular ejection fraction, LVEF) in 22 patients with coronary artery disease and 22 normal subjects.  Acupuncture caused an increase in the LVEF in patients with coronary artery disease, especially in the first 15 minutes of stimulation. This persisted for 15 minutes after acupuncture, but became insignificant after one week.  They concluded acupuncture at PC6 could temporarily improve left ventricular function in CAD patients, but more studies were needed to confirm its long-term effects and mechanisms.

An RCT (Wang et al, 2015), aimed to understand if pretreatment with electroacupuncture (EA) could reduce the damage to the heart muscle caused by percutaneous coronary intervention (PCI).  PCI is used to treat CAD by inserting a thin, flexible tube called a catheter, where it’s x-ray guided to the and a small balloon is inflated to widen the narrowed coronary artery, and possibly a small metal mesh tube (“stent”) placed like a scaffold to keep it open.  However, PCI can cause damage the heart muscle (ischemia-reperfusion injury).  Wang et al (2015) compared EA with sham EA in 204 CAD patients undergoing PCI.  They found that EA: significantly lowered the levels of cTnI (cardiac troponin I); reduced the use of drugs (inotropes); shortened the length of stay in the intensive care unit (ICU); and decreased the rate of MACCE (major adverse cardiac/cerebrovascular events) at 24 months after PCI, compared to sham EA. They concluded that EA prior to PCI “significantly reduced cTnI release and protected patients with CAD from subsequent myocardial injury after PCI procedure.”

Mechanisms of action

Li et al (2014) proposed a possible mechanism of action for the lowering of blood pressure, in that acupuncture could regulate the renin-angiotensin-aldosterone system (RAAS), which is involved in blood pressure regulation, by stimulating specific acupoints that correspond to the kidney and liver meridians. The other mechanism is based on the Western medicine theory of modulating the autonomic nervous system (ANS), which controls the heart rate and vascular tone. They further hypothesized that acupuncture might activate the parasympathetic branch of the ANS, thus lowering the sympathetic activity and reducing the release of stress hormones that constrict the blood vessels.

Li et al, (2022), theorised about specific points in the process of cardioversion, whereby acupuncture in addition to medication was shown to benefit the outcome.  In particular a specific point on the arm called Neiguan (pericardium 6), which has mechanisms of action including:  Downregulating the amygdala (involved in stress response) in the brain; desensitising the nucleus tractus solitarius, (area in the brain that controls heart rate and blood pressure); reducing levels of inflammatory substances in the blood, including CRP, IL-8, and TNF-α (which can cause swelling and pain, damage the heart tissue and make AF worse); improving the index of heart rate variability (HRV) – is a measure of how well the heart adapts to different situations.

Yang et al (2010) in their RCT on cardioprotective effects of EA for valve surgery discussed possible mechanisms for how EA pretreatment could protect the heart from injury, such as activating certain pathways in the brain and nerves that regulate blood flow and inflammation. Specifically, they put forward the way in which EA at Neiguan (PC-6) can influence the neuroendocrine system and the inflammatory response, which are both involved in the pathogenesis and progression of coronary artery disease. Stimulating this point can activate certain pathways in the brain and nerves that regulate blood pressure, heart rate, vascular tone, and stress hormones, as well as reduce the levels of substances in the blood that cause inflammation, such as cytokines, chemokines, and adhesion molecules.

Li et al (2012) also discussed PC6, and the sympathoexcitatory cardiovascular reflex responses, which are reactions that make the heart beat faster and stronger when the body is under stress or danger.  Point PC6 can reduce the sympathoexcitatory cardiovascular reflex responses, reducing this effect and relaxing the heart muscle to modulate the response to an appropriate level.  They also discuss brain activity that may govern the cardiovascular response, and be influenced by acupuncture, namely some parts of the brain that are involved in acupuncture, such as the rostral ventrolateral medulla (RVLM), the arcuate nucleus (ARC), and the ventrolateral periaqueductal gray (vlPAG), which are parts of the brain that control the blood pressure, heart rate, and stress response.  Acupuncture can do this by activating some pathways in the brain that send messages to the heart and blood vessels to relax, and can also make these pathways less sensitive to signals from other organs or tissues that can trigger these reflexes.  Acupuncture can have a long-lasting effect on these reflexes, even after the needles are removed. Acupuncture can do this by changing some proteins or chemicals in the brain that are involved in these reflexes, such as opioids, serotonin, or nitric oxide.

Another mechanism of action involved adenosine receptors, as examined by Malik et al (2019); EA activates the A2a adenosine receptors in the RVLM (rostral ventrolateral medulla of the brain), making the nerve cells in the RVLM less active and less likely to increase the blood pressure and heart rate.  This process is dependent on the body’s natural opioids, and the fact that EA can increase the amount of opioids in the RVLM, can help activate the A2a adenosine receptors. This process has been proven further by the fact that if the opioids are deliberately blocked by some drugs, EA’s effect on the A2a adenosine receptors is also blocked.

Animal Models

In a rat model, Su et al (2022) used PC6 point to study atrial fibrillation, in order to understand the mechanism of action whereby electroacupuncture at this point was demonstrated in many previous studies to benefit AF.  EA at PC6 was shown to affect the brain and the nerves that control the heart in different ways: making it harder for AF to start or continue by changing how the heart cells react to certain chemicals, such as ACh and CaCl2, that can trigger AF; improving the HRV; balancing the activity of the sympathetic and vagal nerves, which are part of the nervous system that controls the heart rate and blood pressure (the sympathetic nerve makes the heart beat faster and stronger, while the vagal nerve makes it slower and weaker); reducing the sympathetic nerve activity and increase the vagal nerve activity, which can help lower the heart rate and make it more stable; affecting the expression of c-Fos, which is a protein that shows how active certain brain regions are, and decreasing the activity of some brain regions that are involved in stress and blood pressure regulation, such as PVN, RVLM, and DMV; whilst increasing the activity of another brain region that is involved in heart rate regulation.

Summary

Several hypotheses have been proposed based on anatomical, physiological, pharmacological, and neuroscientific evidence. One of the main mechanisms is the modulation of the autonomic nervous system, which regulates the heart rate, blood pressure, and vascular tone. Acupuncture can activate specific reflexes that involve peripheral nerves, spinal cord, brainstem, hypothalamus, and other brain regions to inhibit sympathetic activity and enhance parasympathetic activity. This can result in vasodilation, decreased cardiac output, and reduced blood pressure.

Another mechanism is the release of endogenous substances that have cardiovascular effects, such as endorphins, enkephalins, serotonin, nitric oxide, and angiotensin II. These substances can act on various receptors and channels to modulate vascular tone, cardiac contractility, inflammation, and oxidative stress.

A third mechanism is the stimulation of angiogenesis and neurogenesis in the heart and brain tissues. Acupuncture can increase the expression of growth factors and cytokines that promote the formation of new blood vessels and nerve fibres. This can improve blood supply and oxygen delivery to the ischemic areas and enhance tissue repair and regeneration.

Regarding Your Individual Condition and Symptoms:

Whilst the scientific studies are of great interest to researchers and acupuncturists in terms of comparing protocols, for the patient not versed in research they are less accessible, which is why when we asked “can acupuncture work for my (condition or symptom) we are not able to give a simple yes or no response.  We are able to tell you what experience we have had in our decades of experience in practise, of the types of outcomes we have seen in similar cases, and give you an idea of our level of experience and knowledge in that area, and how this could relate to your own individual situation.  For this, we recommend booking a free telephone consultation where we can answer any questions you have and give a realistic appraisal of what acupuncture may be able to provide.

Resources:

BAcC Factsheet: Angina, Coronary Heart Disease, Atrial Fibrillation and Heart Failure

BAcC Factsheet: Hypertension

BAcC Factsheet: Stroke

Related pages: Hypertension/High Blood Pressure ; Stroke

References:

Feingold, K.L., Moskowitz, J.T., Elenbaas, C., Andrei, A.C., Victorson, D., Kruse, J., Grote, V., Patil, K.D., Shafiro, T., Grimone, A. and Lin, F., 2023. Acupuncture after valve surgery is feasible and shows promise in reducing postoperative atrial fibrillation: The ACU-Heart pilot trial. JTCVS Open.

Ho, F.M., Huang, P.J., Lo, H.M., Lee, F.K., Chern, T.H., Chiu, T.W. and Liau, C.S., 1999. Effect of acupuncture at nei-kuan on left ventricular function in patients with coronary artery disease. The American journal of Chinese medicine, 27(02), pp.149-156.

Li, D.Z., Zhou, Y., Yang, Y.N., Ma, Y.T., Li, X.M., Yu, J., Zhao, Y., Zhai, H. and Lao, L., 2014. Acupuncture for essential hypertension: a meta-analysis of randomized sham-controlled clinical trials. Evidence-Based Complementary and Alternative Medicine, 2014.

Li, J., Li, J., Chen, Z., Liang, F., Wu, S. and Wang, H., 2012. The influence of PC6 on cardiovascular disorders: a review of central neural mechanisms. Acupuncture in Medicine30(1), pp.47-50.

Li, Y., Song, J., Wu, B., Wang, X., Han, L. and Han, Z., 2022. Acupuncture versus pharmacological conversation in treatment of atrial fibrillation in a randomized controlled trial: a systemic review and meta-analysis. European Journal of Medical Research, 27(1), pp.1-14.

Lomuscio, A., Belletti, S., Battezzati, P.M. and Lombardi, F., 2011. Efficacy of acupuncture in preventing atrial fibrillation recurrences after electrical cardioversion. Journal of cardiovascular electrophysiology, 22(3), pp.241-247.

Lu, L., He, W., Guan, D., Jiang, Y., Hu, G., Ma, F. and Chen, L., 2022. Acupuncture in treating cardiovascular disease complicated with depression: A systematic review and meta-analysis. Frontiers in Psychiatry, 13, p.1051324.

Ma, J., Zhang, Y., Ge, Q. and Wu, K., 2023. The effect of auricular acupuncture on preoperative blood pressure across age groups: a prospective randomized controlled trial. Clinical and Experimental Hypertension45(1), p.2169452.

Malik, S., Samaniego, T. and Guo, Z.L., 2019. Adenosine receptor A2a, but not A1 in the rVLM participates along with opioids in acupuncture-mediated inhibition of excitatory cardiovascular reflexes. Frontiers in Neuroscience, p.1049.

Su, Y., Huang, J., Sun, S., He, T., Wang, T., Fan, M., Yu, H., Yan, J., Yao, L., Xia, Y. and Zhang, M., 2022. Restoring the Autonomic Balance in an Atrial Fibrillation Rat Model by Electroacupuncture at the Neiguan Point. Neuromodulation: Technology at the Neural Interface.

Wang, Q., Liang, D., Wang, F., Li, W., Han, Y., Zhang, W., Xie, Y., Xin, W., Zhou, B., Sun, D. and Cao, F., 2015. Efficacy of electroacupuncture pretreatment for myocardial injury in patients undergoing percutaneous coronary intervention: a randomized clinical trial with a 2-year follow-up. International journal of cardiology194, pp.28-35.

Yang, L., Yang, J., Wang, Q., Chen, M., Lu, Z., Chen, S. and Xiong, L., 2010. Cardioprotective effects of electroacupuncture pretreatment on patients undergoing heart valve replacement surgery: a randomized controlled trial. The Annals of thoracic surgery89(3), pp.781-786.

Yin, C., Seo, B., Park, H.J., Cho, M., Jung, W., Choue, R., Kim, C., Park, H.K., Lee, H. and Koh, H., 2007. Acupuncture, a promising adjunctive therapy for essential hypertension: a double-blind, randomized, controlled trial. Neurological research29(sup1), pp.98-103.

Helen
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Acupuncture Awareness Week 2023

Research Update: Recent 2023 studies on acupuncture for pain

March 27th, 2023.

In this blog post, for #AcupunctureAwarenessWeek2023, we’ll review some very recent research developments in acupuncture.  Acupuncture is widely used for pain relief, and here we’ll look at brand new (2023) research, to help us consider how effective and safe it is for three specific types of pain; dental pain, thalamic pain (after stroke), and menstrual migraine. We will discuss the studies and then explain some key concepts and terms related to the research methods used in acupuncture.  We’ll also provide the full references so you can enjoy reading the articles and find out more.

We’ll present:

  • A new RCT into acupuncture for a dental pain
  • A systematic review of acupuncture for a specific type of chronic pain after stroke
  • A protocol for an upcoming RCT on a specific type of migraine.

Each of these studies from peer-reviewed journals, and have research questions, methods and outcomes, but they all contribute to the growing evidence base for acupuncture as a valid healthcare choice alongside usual treatment.

To know more about RCT’s, systematic reviews and what they are for, keep reading to the end of the blog.  Full references follow at the end.

1. Kumar & Tewari, 2023. Acupuncture for Management of Endodontic Emergencies: a Review.

Acupuncture needles in a patient's back
Acupuncture needles in a patient’s back

Kumar and Tewari (2023) reviewed the current evidence for the use of acupuncture in endodontics, with a focus on its potential to provide emergency pain relief. Root canal treatment is often used to treat painful endodontic conditions, but comes with a high incidence of postoperative pain and potential side effects from drug treatment; drug treatment not always being effective. Additionally, concerns have been raised about the risk of COVID-19 transmission due to aerosols generated during dental procedures.

Acupuncture is commonly employed for the treatment of pain, including endodontic pain and dental anaesthesia.  The researchers weighed up the current evidence for acupuncture in endodontics with a literature review of five electronic databases. They selected five studies that met their eligibility criteria (n=312).

Overall, acupuncture reduced the failure of nerve block in patients with irreversible pulpitis and in controlling both during (intraoperative) and postoperative pain from root canal.  Acupuncture also reduced dental anxiety, and lowered the amount of painkiller drugs needed by, thus minimising side effects of analgesia. The researchers concluded that acupuncture could play a role in managing these patients, but that more in-depth clinical research with larger studies is needed in this area due to the small number and variable quality of available studies.  On the issue of Covid-19, researchers advocated a role for acupuncture, as a non-aerosol generating approach that could assist in pain management, where other techniques are not appropriate.

2. Li & Chen 2023: Acupuncture for thalamic pain after stroke: A systematic review and meta-analysis

Acupuncture needles in a blister pack
Acupuncture needles in a blister pack

Thalamic pain:  A type of chronic pain caused by damage to the sensory area of the brain – Thalamus.  Causing burning, tingling, stabbing, or freezing sensations it affects one side of the body or face, usually the opposite side to the brain injury site. Coming on straight after a brain injury, or developing months or years later, thalamic pain can impact a person’s quality of life and mental health.

In this study, Li and Chen examined this type of pain, secondary to stroke.  Acupuncture is used effectively for various types of pain, including thalamic pain, and in China it’s used first-line alongside mainstream medicine immediately post-stroke.  The researchers searched five electronic databases for randomized controlled trials (RCTs) that compared acupuncture with drugs for thalamic pain after stroke:  Five studies met their criteria (n=368).

This review found acupuncture effective in reducing thalamic pain after stroke, with higher success rates and no significant safety difference compared to drugs.  Li and Chen (2023) concluded that acupuncture is a promising treatment for thalamic pain, but called for further large-scale and high-quality trials to confirm their findings.

Note: Acupuncture should complement medical treatment, and not replace it.  Acute and life-threatening situations, medical emergencies like stroke require seeking emergency medical input, without delay. 

3. Wu et al, 2023: Determining the Efficacy and Safety of Acupuncture for the Preventive Treatment of Menstrual Migraine: A Protocol for Systematic Review and Meta-Analysis

Shaftesbury Clinic Star of Conditions
A to Z of conditions

This protocol in the Journal of Pain Research, is for Wu et al’s (2023) forthcoming systematic review and meta-analysis into the clinical efficacy and safety of acupuncture in preventing menstrual migraine. The researchers state that current treatments are lacking in effectiveness in this area.

Nine databases will be searched, and the Cochrane risk of bias instrument used to assess trial quality. The results will inform treatment decisions and be useful to patients, physicians, and policy makers alike: We’ll let you know, as soon as we see any update: This will be an interesting addition to the research base.

Conclusion

We covered three brand new research papers on acupuncture for three sorts of pain: dental, thalamic (after stroke), and menstrual migraine. Acupuncture may offer an effective and low-risk option for managing these types of pain, per the research we’ve seen.

Further resources on our conditions page, lead to articles about acupuncture research in different conditions here: https://shaftesburyclinic.com/conditions/

As with this growing research field, more high-quality and large-scale studies are needed to confirm the efficacy and safety of acupuncture for these pain conditions, as well as which are the most successful protocols or point combinations to use in each case.

Acupuncture represents a valid healthcare choice alongside usual treatment for many conditions.  We love to talk about what we do: You can always schedule a free 15 minute consultation with one of our acupuncturists, to find out more!

Book here: https://shaftesburyclinic.janeapp.co.uk/

A note on the research

A randomized controlled trial (RCT) is a study design used in health research, to test the effectiveness of a medical treatment:

  • Participants are randomly assigned to receive either the treatment being tested, or a placebo/sham/no treatment/wait list control
  • Researchers look to determine whether the treatment arm is more effective than placebo
  • RCTs are the “gold standard” in research, designed to minimise bias and give us the most reliable evidence

Systematic reviews of randomized controlled trials (RCTs) are highly useful and reliable in research: 

  • Systematic reviews entail a comprehensive overview of the evidence; assess the quality of the evidence and many go on to meta-analyse the data by putting together the results of numerous (RCT) studies to give a more powerful view of trends. 

Good quality evidence is needed for people to make the best and most appropriate treatment decisions; for patients, their caregivers and those who make recommendations and fund healthcare (e.g. NICE, NHS England)

Next up: Mechanisms of Action

We have seen that acupuncture has been shown to benefit pain, what are the underlying mechanisms of action in the body and the brain that make this happen?  

In our next blog, we’ll look the mechanisms of action for acupuncture in pain.  In the meantime, check out our related pages:

Pain & Painful disorders – Condition Resources | shaftesburyclinic

Chronic Pain – Condition Resources | shaftesburyclinic

References:

Kumar, G. and Tewari, S., 2023. Acupuncture for Management of Endodontic Emergencies: a Review. Journal of Acupuncture and Meridian Studies, 16(1), pp.1-10.

Li, W. and Chen, S., 2023. Acupuncture for thalamic pain after stroke: A systematic review and meta-analysis. Medicine, 102(9), pp.e33006-e33006.

Wu, Q., Wang, J., Lin, X., Han, D., Hu, H. and Gao, H., 2023. Determining the Efficacy and Safety of Acupuncture for the Preventive Treatment of Menstrual Migraine: A Protocol for a PRISMA-Compliant Systematic Review and Meta-Analysis. Journal of Pain Research, pp.101-109.

Helen
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Acupuncture for pregnancy in Bedford, UK

Pregnancy, Breech baby, and Childbirth – Condition Resources

Important to know: Chronic health conditions should be addressed under direct medical supervision of your GP or consultant, and acupuncture would be an adjunct or complement to usual care – we advise that you let you doctor know when you use this approach.

Acupuncture is a safe and popular choice during pregnancy, our practitioners have worked with very many pregnant women at all stages of pregnancy over the years. It is important that your midwife/obstetrician is happy with this approach, and we have had many direct recommendations to us, from local midwives over the years.

There is an interesting video from the British Acupuncture Council with a patient regarding hyperemesis gravidarum (severe morning sickness) and her use of acupuncture, showing a treatment and discussion with her acupuncturist: you can see it here

The BAcC has a factsheet on the research and use of acupuncture in Obstetrics, as well as one on Childbirth, and on Puerperium (post natal period) 

Acupuncture is safe in pregnancy with a qualified acupuncturist.

Research and Resources on Pregnancy and Acupuncture:

A scholarly search of the available research studies mentioning “acupuncture and pregnancy” reveals over 45,00 papers from journals, of these “RCT” narrows down to 5,280 papers. Of the RCT’s ever published in this area, 38% have been published in the last 4 years (since 2017). A number of systematic reviews have been done for acupuncture in particular issues of pregnancy (see below).  From this abundance of research, we can deduce that acupuncture is employed, traditionally and currently in this area; widely scientifically researched, and that the pace at which the research is being carried is increasing – leading us to understand this is an area that has been deemed worthy of scientific appraisal and consideration.  

Interpreting the research:

When reading health research, it is important to know that Systematic Reviews or Meta Analyses of a large number of high-quality research studies are the very best way to be able to say to what extent a given treatment can address a condition, symptom, or set of symptoms.  The next best level of evidence is the individual Randomised Controlled Study (RCT) which uses a systematic technique to compare two or more groups of patients receiving different treatments (or a treatment against a “control”, or no treatment).  In acupuncture trials, the nature of the control group is of particular interest as it is hard to blind a patient to whether they are having a needle inserted or not, and even more challenging to blind the researcher/team to this.

The means and quality of how research is carried out varies considerably from country to country, and in terms of how an intervention is compared to another intervention (or a control).  Of note is the fact that “sham” acupuncture (where needles are placed in apparently inert locations rather than traditional acupuncture points) is not really an inert process as it has physiological effects, so that comparing sham and “true acupuncture” may therefore not give a clear picture alone; but and form a part of a research body where acupuncture versus no treatment, vs conventional treatment or vs a different approach/modality also form part of the evidence base.

The n= figure (where quoted in research) tells you how many people were participants in the study, and usually the larger a study (when it is of good quality and design), the more likely it is to be reliable and applicable to larger populations. When (statistical) “significance” is discussed in view of studies it has a very particular meaning – it is the confidence in the data (using statistical tests) that tells us how likely a result could have just come about by chance. The lower the possibility of a chance result, the more likely it is due to the intervention in the experiment. When you are reading a trial/study, the “p” is the number telling us of significance, and this must be under 5% (or p less than 0.05) to mean we can say it is a (statistically) “significant” result.

Breech Presentation

A common request and referral from midwives is regarding the use of moxibustion to the point Bl67, which is a traditional indication for the Breech presentation of a baby. There have been over 600 number of scientific papers in this area as seen in a scholarly search, and a number of systematic reviews in a scholarly search, showing this as an area of frequent use, as well as scientific interest. Systematic reviews that have been carried out on this are: Liao et al, (2021); Vas et al, (2009); Li et al, (2009); Van den Berg et al, (2008); Mailan et al (2009); Lee at al, (2010); Zhang et al, (2013). Full references are below, to enable to you find and access the original articles.

The most recent of these systematic reviews, carried out by Taiwanese researchers (Liao et al, 2021) looked at 16 RCT’s and n=2555, appraised the studies in terms of bias risk as well as outcome, excluding studies that were not of sufficient quality, 8 studies from China were included, and the rest from European countries. Overall they found that moxibustion had merit in this field, but that more RCT’s are needed to establish the magnitude of the effect. A systematic review found moxibustion as used in this field to be safe when carried out by a trained professional (Xu et al, 2014;

It is vital that your obstetrician and midwife are aware before you undertake acupuncture (or any complementary therapy) in pregnancy.

Induction of Labour

This is an area for which pregnant women sometimes look to information about acupuncture when they are overdue their expected deliver date, usually because they have heard mention of it from a midwife, or had a personal recommendation for someone they know.

It is vital that your obstetrician and midwife are aware before you undertake acupuncture (or any complementary therapy) in pregnancy.

Studies have been done regarding traditional acupuncture protocols for this, (a scholarly search reveals over 930 articles mentioning “acupuncture” + “labour induction” OR “labor induction”, 30% of these have been carried out since 2017.

A Cochrane systematic review of 22 trials (Smith et al, 2017), concluded that acupuncture showed some benefit in improving cervical maturity, but insufficient evidence as to whether it reduced caesarean rate, meaning more high-quality RCT trials are needed. In a more recent systematic review, Siregar et al (2020, 9 articles, n=1656) reached a similar conclusion.

Hyperemesis Gravidarum (Morning Sickness)

Studies have been done regarding traditional acupuncture protocols for this, (a scholarly search reveals over 2,200 articles mentioning “acupuncture” + “hyperemesis gravidarum”, 207 show as “RCT” and 24% of these have been carried out since 2017.

In 1996, researcher Andrew Vickers had published a review article entitled “Can Acupuncture have Specific Effects on Health? A Systematic Review of Acupuncture Antiemesis Trials” (Vickers, 1996), because the traditional anti-sickness point in acupuncture theory was PC6, he examined 33 trials of the effect of this in nausea caused by pregnancy as well as chemotherapy and post-surgery, with the research pointing to PC6 having an anti nausea effect. Of interest to note is that the car sickness wristbands that have been available to buy in chemists for a couple of decades, are intended to press upon this exact acupuncture /acupressure points, their idea being drawn from traditional acupuncture.

Systematic reviews in this area include Sridharan and Sivaramakrishnan (2020; 20 studies) which saw some benefit for the acupuncture intervention, albeit that the quality of the studies was low and warranted more trials in future; Van den Heuvel et al ‘s systematic review (2015, 29 trials, n=3519) had reached a similar conclusion. Li et al, 2017 (11 studies) also concurred, noting in addition the possible publication bias (i.e. researchers having carried out a successful study may be more likely to publish it/have it accepted for publication than are those whose study shows no effects in some spheres).

EA is a safe and effective form of therapy and was found effective for hyperemesis gravidarum (severe “morning sickness” of pregnancy) (Ezzo et al, 2006). Yan et al recently (2020) put forward a protocol for a systematic review in this area, so this is currently awaited.

Mechanism of action in nausea and vomiting: an animal model: Scallan et al (2016) investigated point PC6 on 81 healthy dogs who had drug-induces nausea and vomiting, finding that use of the point reduces vomiting. Notably in animals the placebo effect is somewhat overcome by a lack of the animal anticipating an acupuncture intervention to be of assistance.

Dyspepsia (Indigestion, Heartburn)

We have a separate page for this condition – Dyspepsia – which is common in pregnancy

Low Back Pain

We have a separate page for this condition – Low Back Pain – which is common in pregnancy

Post Caesarean Pain

We have a separate page for this condition – Post Operative Pain – which is common in pregnancy

Mental Health, Anxiety, Depression

We have separate pages for these conditions – AnxietyDepressionMental HealthStress and a blog about mental health

Gestational Diabetes

The British Acupuncture’s Diabetes Factsheet also covers the research that has been done into Gestational Diabetes.

Regarding Your Individual Condition and Symptoms:

Whilst the scientific studies are of great interest to researchers and acupuncturists in terms of comparing protocols, for the patient not versed in research they are less accessible, which is why when we asked “can acupuncture work for my (condition or symptom) we are not able to give a simple yes or no response.  We are able to tell you what experience we have had in our decades of experience in practise, of the types of outcomes we have seen in similar cases, and give you an idea of our level of experience and knowledge in that area, and how this could relate to your own individual situation.  For this, we recommend booking a free telephone consultation where we can answer any questions you have and give a realistic appraisal of what acupuncture may be able to provide.

See our Fertility and Pregnancy page for full details on the studies and mechanisms of the above.

Resources:

The British Acupuncture Council has several relevant evidence based factsheets about Women’s Health, including specific research, trials and mechanisms of action for acupuncture in these conditions.

BAcC Childbirth and acupuncture factsheet

BAcC Obstetrics (pregnancy and childbirth) and acupuncture factsheet

BAcC Puerperium (postnatal / postpartum) acupuncture factsheet

Our own page on Fertility, Pregnancy and Acupuncture

The British Acupuncture Council also has a review paper on Gynaecology and acupuncture: The evidence for effectiveness

Bibliography:

Ezzo, J., Streitberger, K. and Schneider, A., 2006. Cochrane systematic reviews examine P6 acupuncture-point stimulation for nausea and vomiting. Journal of Alternative & Complementary Medicine12(5), pp.489-495.

Khorram, N.M.; S. Horton, V. Sahakian The Effect of Acupuncture on Outcome of in Vitro Fertilization Fertility and Sterility, Vol. 84, S364 Published in issue: September 2005

Li, Xun, Jun Hu, Xiaoyi Wang, Huirui Zhang, and Jianping Liu. Moxibustion and other acupuncture point stimulation methods to treat breech presentation: a systematic review of clinical trials. Chin Med 2009;4:4.

LI, Y., WANG, Y., LI, C. and ZHANG, Z., 2017. A Systematic Review and Meta-analysis of Domestic Acupuncture for Treatment of Hyperemesis Gravidarum. Journal of Liaoning University of Traditional Chinese Medicine, p.09.

Lee, M.S., Kang, J.W. and Ernst, E., 2010. Does moxibustion work? An overview of systematic reviews. BMC Research Notes3(1), pp.1-5.

Liao, J.A., Shao, S.C., Chang, C.T., Chai, P.Y.C., Owang, K.L., Huang, T.H., Yang, C.H., Lee, T.J. and Chen, Y.C., 2021, June. Correction of Breech Presentation with Moxibustion and Acupuncture: A Systematic Review and Meta-Analysis. In Healthcare (Vol. 9, No. 6, p. 619). Multidisciplinary Digital Publishing Institute.

Lim, Chi Eung Danforn; Jenny Wilkinson, WS Felix Wong, Nga Chong Lisa Cheng Effect of Acupuncture on Induction of Labor Journal of alternative and complementary medicine (New York, N.Y.)  11/2009; 15(11):1209-14.

Mailan, L.I.U., Lei, L.A.N., Yong, T.A.N.G. and Fanrong, L.I.A.N.G., 2009. Acupuncture and moxibustion for breech presentation: a systematic review. Chinese Journal of Evidence-Based Medicine9(8), pp.840-843.

Manber, Rachel PhD; Schnyer, Rosa N. DAOM, LAc; Lyell, Deirdre MD; Chambers, Andrea S. PhD; Caughey, Aaron B. MD, PhD; Druzin, Maurice MD; Carlyle, Erin MS; Celio, Christine MS; Gress, Jenna L. BA; Huang, Mary I. MS; Kalista, Tasha MA; Martin-Okada, Robin BS; Allen, John J. B. PhD Acupuncture for depression during pregnancy: a randomized controlled trial. ObstetGynecol 2010;115:511-20

Mozurkewich, E.L., Chilimigras, J.L., Berman, D.R., Perni, U.C., Romero, V.C., King, V.J. and Keeton, K.L., 2011. Methods of induction of labour: a systematic review. BMC pregnancy and childbirth11(1), pp.1-19.

Scallan, E.M. and Simon, B.T., 2016. The effects of acupuncture point Pericardium 6 on hydromorphone-induced nausea and vomiting in healthy dogs. Veterinary anaesthesia and analgesia43(5), pp.495-501.

Siregar, E., Herawati, L., Runjati, R. and Erisna, M., 2020. The Effects of Acupressure and Acupuncture as Natural Induction Methods for Spontaneous Labor: A Systematic Review. International Journal of Nursing and Health Services (IJNHS)3(6), pp.743-753.

Smith, C; Crowther, C and Beilby, J (2002) Acupuncture To Treat Nausea and Vomiting in Early Pregnancy: A Randomized Controlled Trial Birth Volume 29 Issue 1, Pages 1-9

Smith, C.A., Armour, M. and Dahlen, H.G., 2017. Acupuncture or acupressure for induction of labour. Cochrane Database of Systematic Reviews, (10).

Sridharan, K. and Sivaramakrishnan, G., 2020. Interventions for treating hyperemesis gravidarum: a network meta-analysis of randomized clinical trials. The Journal of Maternal-Fetal & Neonatal Medicine33(8), pp.1405-1411.

van den Berg I, Bosch JL, Jacobs B, Bouman I, Duvekot JJ, Hunink MG. Effectiveness of acupuncture-type interventions versus expectant management to correct breech presentation: a systematic review. Complement Ther Med 2008;16:92-100.) 

Van den Heuvel, E., Goossens, M., Vanderhaegen, H., Sun, H.X. and Buntinx, F., 2015. Effect of acustimulation on nausea and vomiting and on hyperemesis in pregnancy: a systematic review of Western and Chinese literature. BMC complementary and alternative medicine16(1), pp.1-18.

Vas J, Aranda JM, Nishishinya B, Mendez C, Martin MA, Pons J, Liu JP, Wang CY, Perea-Milla E. Correction of nonvertex presentation with moxibustion: a systematic review and metaanalysis. Am J Obstet Gynecol.2009 Sep;201(3):241-59.

Vickers, A.J., 1996. Can acupuncture have specific effects on health? A systematic review of acupuncture antiemesis trials. Journal of the Royal Society of Medicine89(6), pp.303-311.

Xu, Jin; MacKenzie, Ian Z.The current use of acupuncture during pregnancy and childbirth Current Opinion in Obstetrics &Gynecology. 24(2):65-71, March 2012. 

Xu, J., Deng, H. and Shen, X., 2014. Safety of moxibustion: a systematic review of case reports. Evidence-Based Complementary and Alternative Medicine2014.

Yan, R., Zhan, J., Liu, G., Li, C., Cai, P., Chen, Y. and Cao, H., 2020. A comparison of the efficacy and safety of traditional Chinese medicine external treatment for the hyperemesis gravidarum: A protocol for systematic review and network meta-analysis. Medicine99(45).

Zhang, Q.H., Yue, J.H., Liu, M., Sun, Z.R., Sun, Q., Han, C. and Wang, D., 2013. Moxibustion for the correction of nonvertex presentation: a systematic review and meta-analysis of randomized controlled trials. Evidence-Based Complementary and Alternative Medicine2013.

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Arthritis – Condition Resources

Important to know: Chronic health conditions should be addressed under direct medical supervision of your GP or consultant, and acupuncture would be an adjunct or complement to usual care – we advise that you let you doctor know when you use this approach.

Acupuncture has been shown to modulate inflammatory responses in the body, as well as to reduce the activity in the areas of the brain associated with pain and stress (as seen on functional MRI brain scans in research settings).

Interpreting the research:

When reading health research, it is important to know that Systematic Reviews or Meta Analyses of a large number of high-quality research studies are the very best way to be able to say to what extent a given treatment can address a condition, symptom, or set of symptoms.  The next best level of evidence is the individual Randomised Controlled Study (RCT) which uses a systematic technique to compare two or more groups of patients receiving different treatments (or a treatment against a “control”, or no treatment).  In acupuncture trials, the nature of the control group is of particular interest as it is hard to blind a patient to whether they are having a needle inserted or not, and even more challenging to blind the researcher/team to this.

The means and quality of how research is carried out varies considerably from country to country, and in terms of how an intervention is compared to another intervention (or a control).  Of note is the fact that “sham” acupuncture (where needles are placed in apparently inert locations rather than traditional acupuncture points) is not really an inert process as it has physiological effects, so that comparing sham and “true acupuncture” may therefore not give a clear picture alone; but and form a part of a research body where acupuncture versus no treatment, vs conventional treatment or vs a different approach/modality also form part of the evidence base.

The n= figure (where quoted in research) tells you how many people were participants in the study, and usually the larger a study (when it is of good quality and design), the more likely it is to be reliable and applicable to larger populations. When (statistical) “significance” is discussed in view of studies it has a very particular meaning – it is the confidence in the data (using statistical tests) that tells us how likely a result could have just come about by chance. The lower the possibility of a chance result, the more likely it is due to the intervention in the experiment. When you are reading a trial/study, the “p” is the number telling us of significance, and this must be under 5% (or p less than 0.05) to mean we can say it is a (statistically) “significant” result.

The research:

Osteoarthritis: Since 2005, there have been over than 50 NHS publications recommending acupuncture for osteoarthritis (largely knee or hip) and many more worldwide (Birch et al 2018).

A large (n=20827) meta-analysis of 39 studies showed acupuncture to be significantly superior to usual care and to sham (non-specific acupuncture point usage), for patients with osteoarthritis and other painful conditions (all p <.001; Vickers et al, 2018).  Additionally, clear evidence was found in this meta-study that that the effects of acupuncture persisted over time.

For patients with osteoarthritis pain, acupuncture improved pain relief compared to sham at short-term and at six-month follow up. When compared to wait list controls, acupuncture showed a clinically significant improvement in short term pain relief.  A randomised controlled trail in patients with osteoarthritis of the knee or hip, showed a significant difference at three months between acupuncture and routine care (Reinhold et al, 2008; Manheimer et al, 2010).

Knee Pain: Osteoarthritis of the knee is a chronic degenerative disease, with symptoms of pain, stiffness, swelling and dysfunction.  OA of the knee is the most prevalent pain- and disability inducing condition in adults over 50 years old (Araya-Quintanilla et al. 2022)

A systematic review and meta-analysis of 17 trials, showed significant benefits whereby in patients in study groups having received acupuncture, this was associated with significantly reduced chronic knee pain 12 weeks (Zhang et al, 2017).  Specifically comparing treatments including acupuncture in osteoarthritic knee pain, Corbett et al’s (2013, n=9709) systematic review and network meta-analysis found that acupuncture could be considered as one of the more effective physical treatments for alleviating osteoarthritis knee pain in the short-term: Acupuncture was ranked second out of 21 physical treatments in this study.  The team also clarified that further research is also warranted in this area, due to the quality of the research available in some treatment areas across the studies.

Acupuncture can be cost effective, according to an RCT (n=60); acupuncture was offered to patients with knee osteoarthritis who were going to be referred for orthopaedic surgery by their GP, with acupuncture a third were able to avoid surgery which also represented a cost-saving of £100,000 per year [to the NHS]” (White et al, 2016). Acupuncture has been found to improve improve pain and improve function and quality of life in knee osteoarthritis, particularly where chronic (Tian et al, 2022).

An overview of 15 systematic reviews of pain relief in patients with osteoarthritis knee by Araya-Quintanilla et al. (2022) found that in the short term, acupuncture had a moderate positive impact on both pain intensity; and knee function, compared to the control groups. The evidence was rated as low to very low quality according to GRADE ratings.

The systematic review of eleven RCTs with meta-analysis by Tian et al. (2021) found that acupuncture had a positive effect on reducing pain and improving functional activities in patients with knee osteoarthritis. However, there was no significant effect on relieving stiffness or improving the quality of life (mental or physical health) compared to sham acupuncture. The findings suggest that acupuncture can be recommended as a beneficial alternative therapy for patients with chronic pain and knee OA, but further studies are needed to verify the effectiveness in function improvement.

Liu, J., et al, 2022; In this multicentre RCT (n=625), patients were randomly assigned to receive acupuncture at acupoints with Lower Pain Threshold (LPT); acupuncture at acupoints with Higher Pain Threshold (HPT); and no acupuncture (waiting-list group).  Measures of pain and symptoms (WOMAC) from baseline to 16 weeks; outcome measures of daily life impact of condition (SF-12 score); and active knee range of motion (ROM) were used as comparators. From baseline to 16 weeks, the effects of acupuncture at acupoints with lower versus higher PT were similar, as both were effective for patients with OA of the knee, “results confirmed the positive effects of acupuncture on pain, stiffness, physical function and quality of life of in patients” compared to the waiting list group.

A further systematic review and meta-analysis is due as per the recent protocol in the BMJ (Lui, C.Y., et al; 2022).

Hip osteoarthritis: There is less research in this area, although it is growing, a systematic review (Manheimer et al, 2018; n=413, for 6 trials) found Acupuncture beneficial as an add-on to usual GP care, with a small but significant benefit for physical quality of life.

Mechanisms of Action:

A review article (Kavoussi & Ross, 2007) suggests that the anti-inflammatory actions that have been demonstrated to be brought about by acupuncture may be mediated via activation of the vagus nerve, alongside deactivation of inflammatory macrophages and other proinflammatory cytokines.  The researchers concluded that “The use of acupuncture as an adjunct therapy to conventional medical treatment for a number of chronic inflammatory and autoimmune diseases seems plausible and should be validated by confirming its cholinergicity”.  Other studies (Zijlstra et al, 2003) have revealed that acupuncture some of the pain modulating and anti-inflammatory effects exhibited in acupuncture may be due to the fact that it has been shown to stimulate certain substances in the body which act as vasodilators, neurotransmitters and painkillers (beta-endorphins, CGRP and substance P) and further stimulate cytokines and nitric oxide, all of which play roles in inflammatory states. 

Zijlstra et al (2003) reviewed the effects and mechanisms of acupuncture in treating various inflammatory diseases and conditions. They proposed the mechanisms of action:

✳️ Acupuncture may release neuropeptides from nerve endings that have vasodilative and anti-inflammatory effects through CGRP.

✳️ Acupuncture may also interact with substance P, which is involved in pain transmission and inflammation.

✳️ Acupuncture may contribute to analgesia by stimulating the release of β-endorphin, which binds to opioid receptors and inhibits pain signals.

✳️ Acupuncture may influence the balance between cell-specific pro-inflammatory and anti-inflammatory cytokines such as TNF-α and IL-10.

CSR and ERP are blood tests related to the functioning of the immune system, that can measure and monitor inflammation in the body.  They are relevant to conditions such as Rheumatoid Arthritis, and other immune and inflammatory conditions. Per a review by Feng at al, (2023) electroacupuncture (EA) plus medication had a significant effect in lowering both ESR and CRP levels in patients with RA compared with medication alone.  These results suggest that EA may have an anti-inflammatory effect and improve the immune status of patients with RA.

Liu et al (2014) investigated the anti-inflammatory effect of electroacupuncture (EA) in a rat tissue chamber model of inflammation. The study found that EA inhibited the p65 protein from moving to the cell nucleus to activate inflammatory genes.  EA also increased the expression of IκBα, which binds to NF-κB and preventing it from entering the nucleus to activate inflammatory genes. These interfere with the IκB/NF-κB pathway that regulates inflammation, indicating one of the mechanisms of acupuncture in modulating immune / inflammatory response.

Acupuncture stimulates the body to create its own natural painkilling substances, such as Beta Endorphins (β-Endorphin). In studies acupuncture has been shown to stimulate the production of natural painkillers called opioid-like peptides (OLPs), including β-Endorphin: For example, this was shown in an RCT in 90 patients with a range of painful disorders (Petti et al, 1998). The same study showed acupuncture also and enhanced the activity of immune cells (lymphocytes, natural killer cells and monocytes) that help fight infections and diseases (Petti et al, 1998).

Acupuncture can activate mast cells at acupoints, which release histamine, serotonin, adenosine, and other mediators that modulate nerve transmission and inflammation (Li et al, 2022)

Wang et al (2023) reviewed evidence from animal and human studies regarding the immunomodulatory mechanism of acupuncture, regarding its effects on different components of the immune system, such as mast cells, macrophages, neutrophils, natural killer cells, astrocytes, microglia, CD4+ and CD8+ T cells, and cytokines.  They detailed the neuroanatomical mechanisms of acupuncture in immunomodulation, such as the vagal-adrenal pathway, the cholinergic anti-inflammatory pathway, the spinal sympathetic pathway, the brain-gut axis, and the hypothalamus-pituitary-adrenal axis.  They concluded that studies to support the role of acupuncture in regulating inflammation, infection, allergy, pain, and tissue repair.

Per MacDonald et al (2015), acupuncture may:

  • modulate immune function by altering the balance of Th1 and Th2 cells and suppressing mast cell degranulation
  • influence various receptors and signalling pathways that are involved in inflammatory response, such as TRPV1, opioid, chemokine, dopamine, and cannabinoid receptors
  • activate a novel cholinergic anti-inflammatory pathway that involves vagal and sciatic nerves and is mediated by dopamine
  • reduce inflammation by downregulating proinflammatory neuropeptides, cytokines, and neurotrophins

Animal Models

Many mechanisms of action have been investigated in animal models as well as in humans to measure brain activity associated with pain and the levels of biomarkers associated with inflammation.

Animal models: A systematic review and meta-analysis of 21 animal studies (Yu et al, 2023) investigated acupuncture’s effect on pain and swelling of arthritis animal models. Acupuncture was found to increase tolerance to pain stimuli and reduce swelling in arthritis animals, the researchers suggested possible mechanisms of action as being via nervous and immune system regulation.

An animal model study (Sun et al, 2023; n=36) investigated the effects of electroacupuncture (EA) on rheumatoid arthritis (RA) in rats, plus its underlying mechanisms. They showed that acupuncture helped RA outcome measures of paw oedema, pain responses, serum cytokines, synovial inflammation, in collagen-induced arthritis (CIA) rats.  They were able to show that RA worked by blocking a pathway in the synovium called TLR2/4, that activates immune response and inflammation.  The researchers therefore suggested the anti-inflammatory and analgesic effects of EA were related to the inhibition of TLR2/4 signalling on synovial fibroblasts and macrophages.

Electroacupuncture (EA) has been shown in a rat model (Li et al, 2008) to have anti-inflammatory benefits by modulating the hypothalamic-pituitary-adrenal (HPA) axis, (HPA axis regulates the stress response and immune function).  Specifically, Li et al outlined that EA sets off a cascade in the brain (via corticotropin-releasing hormone, and adrenocorticotropic hormone) to produce cortisol, which reduces inflammation and oedema.

You may also find this useful: our Rheumatoid Arthritis page

Resources

BAcC Osteoarthritis of the Knee Factsheet

Evidence Based Acupuncture Foundation Osteoarthritis Evidence Summary

References:

Araya-Quintanilla, F., Cuyúl-Vásquez, I. and Gutiérrez-Espinoza, H., 2022. Does acupuncture provide pain relief in patients with osteoarthritis knee? An overview of systematic reviews. Journal of Bodywork and Movement Therapies, 29, pp.117-126.

Birch, S., Lee, M.S., Alraek, T. and Kim, T.H., 2018. Overview of treatment guidelines and clinical practical guidelines that recommend the use of acupuncture: a bibliometric analysis. The Journal of Alternative and Complementary Medicine, 24(8), pp.752-769.

Corbett, M.S., Rice, S.J.C., Madurasinghe, V., Slack, R., Fayter, D.A., Harden, M., Sutton, A.J., Macpherson, H. and Woolacott, N.F., 2013. Acupuncture and other physical treatments for the relief of pain due to osteoarthritis of the knee: network meta-analysis. Osteoarthritis and cartilage, 21(9), pp.1290-1298.

Feng, Y., Zhang, R., Zhao, Z., He, Y., Pang, X., Wang, D. and Sun, Z., 2023. Efficacy and safety of electroacupuncture combined with medication for rheumatoid arthritis: A systematic review and meta-analysis. Heliyon.

Kavoussi B, Ross BE. The neuroimmune basis of anti-inflammatory acupuncture. Integr Cancer Ther 2007;  6:  251-7.

Li, A., Lao, L., Wang, Y., Xin, J., Ren, K., Berman, B.M., Tan, M. and Zhang, R., 2008. Electroacupuncture activates corticotrophin-releasing hormone-containing neurons in the paraventricular nucleus of the hypothalammus to alleviate edema in a rat model of inflammation. BMC Complementary and Alternative Medicine8(1), pp.1-8.

Li, Y., Yu, Y., Liu, Y. and Yao, W., 2022. Mast cells and acupuncture analgesia. Cells11(5), p.860.

Liu, J., Li, Y., Li, L., Luo, X., Li, N., Yang, X., Zhang, H., Liu, Z., Kang, D., Luo, Y. and Liu, Y., 2022. Effects of acupuncture at acupoints with lower versus higher pain threshold for knee osteoarthritis: a multicenter randomized controlled trial. Chinese Medicine, 17(1), pp.1-12.

Liu, F., Fang, J., Shao, X., Liang, Y., Wu, Y. and Jin, Y., 2014. Electroacupuncture exerts an anti-inflammatory effect in a rat tissue chamber model of inflammation via suppression of NF-κB activation. Acupuncture in Medicine32(4), pp.340-345.

Liu, C.Y., Tu, J.F., Lee, M.S., Qi, L.Y., Yu, F.T., Yan, S.Y., Li, J.L., Lin, L.L., Hao, X.W., Su, X.T. and Yang, J.W., 2022. Is acupuncture effective for knee osteoarthritis? A protocol for a systematic review and meta-analysis. BMJ open, 12(1), p.e052270.

McDonald, J.L., Cripps, A.W. and Smith, P.K., 2015. Mediators, receptors, and signalling pathways in the anti-inflammatory and antihyperalgesic effects of acupuncture. Evidence-Based Complementary and Alternative Medicine2015.

Manheimer E, Cheng K, Linde K, Lao L, Yoo J, Wieland S, et al. Acupuncture for peripheral joint osteoarthritis. Cochrane Database of Systematic Reviews 2010, Issue 1.

Manheimer, E., Cheng, K., Wieland, L.S., Shen, X., Lao, L., Guo, M. and Berman, B.M., 2018. Acupuncture for hip osteoarthritis. Cochrane Database of Systematic Reviews, (5).

Petti, F.., Bangrazi, A., Liguori, A., Reale, G. and Ippoliti, F., 1998. Effects of acupuncture on immune response related to opioid-like peptides. Journal of Traditional Chinese Medicine 18(1), pp.55-63.

Reinhold T, Witt CM, Jena S, Brinkhaus B, Willich SN. Quality of life and cost-effectiveness of acupuncture treatment in patients with osteoarthritis pain. Eur J Health Econ 2008;9(3):209-19.

Sun, S.Y., Yan, Q.Q., Qiao, L.N., Shi, Y.N., Tan, L.H. and Yang, Y.S., 2023. Electroacupuncture Alleviates Pain Responses and Inflammation in Collagen-Induced Arthritis Rats via Suppressing the TLR2/4-MyD88-NF-κB Signaling Pathway. Evidence-Based Complementary and Alternative Medicine2023.

Tian, H., Huang, L., Sun, M., Xu, G., He, J., Zhou, Z., Huang, F., Liu, Y. and Liang, F., 2022. Acupuncture for Knee Osteoarthritis: A Systematic Review of Randomized Clinical Trials with Meta-Analyses and Trial Sequential Analyses. BioMed Research International, 2022.

Vickers, A.J., Vertosick, E.A., Lewith, G., MacPherson, H., Foster, N.E., Sherman, K.J., Irnich, D., Witt, C.M., Linde, K. and Acupuncture Trialists’ Collaboration, 2018. Acupuncture for chronic pain: update of an individual patient data meta-analysis. The Journal of Pain, 19(5), pp.455-474.

Wang, M., Liu, W., Ge, J. and Liu, S., 2023. The immunomodulatory mechanisms for acupuncture practice. Frontiers in Immunology14.

White, A., Tough, L., Eyre, V., Vickery, J., Asprey, A., Quinn, C., Warren, F., Pritchard, C., Foster, N.E., Taylor, R.S. and Underwood, M., 2016. Western medical acupuncture in a group setting for knee osteoarthritis: results of a pilot randomised controlled trial. Pilot and feasibility studies2(1), pp.1-8.

Yu, W.L. and Kim, S.N., 2023. The effect of acupuncture on pain and swelling of arthritis animal models: A systematic review and meta-analysis. Frontiers in Genetics14.

Zhang, Q., Yue, J., Golianu, B., Sun, Z. and Lu, Y., 2017. Updated systematic review and meta-analysis of acupuncture for chronic knee pain. Acupuncture in Medicine, 35(6), pp.392-403.

Zijlstra, F.J., van den Berg-de Lange, I., Huygen, F.J. and Klein, J., 2003. Anti-inflammatory actions of acupuncture. Mediators of inflammation, 12(2), pp.59-69.

Helen
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Shaftesbury Clinic Star of Conditions

Surgery and Post Operative Pain – Condition Resources

Important to know: Chronic health conditions should be addressed under direct medical supervision of your GP or consultant, and acupuncture would be an adjunct or complement to usual care – we advise that you let you doctor know when you use this approach.

Our Nausea page may also be of use regarding Post Operative Nausea and Vomiting Research

Research and Resources on Post Operative Pain and Acupuncture:

A scholarly search of the available research papers on the terms “acupuncture” + “post operative pain” yields over 3,860 papers, and narrowing this to “RCT” to identify Randomised Controlled Trials, gives 583 results; of which 38% have been carried out since 2017 (Google Scholar). This suggests that acupuncture is being used in this area, leading to a small but growing body of research,, the pace of which has increased in recent years, indicating increased recognition that it is worthy of scientific appraisal regarding its potential role.

Interpreting the research:

When reading health research, it is important to know that Systematic Reviews or Meta Analyses of a large number of high-quality research studies are the very best way to be able to say to what extent a given treatment can address a condition, symptom, or set of symptoms.  The next best level of evidence is the individual Randomised Controlled Study (RCT) which uses a systematic technique to compare two or more groups of patients receiving different treatments (or a treatment against a “control”, or no treatment).  In acupuncture trials, the nature of the control group is of particular interest as it is hard to blind a patient to whether they are having a needle inserted or not, and even more challenging to blind the researcher/team to this.

The means and quality of how research is carried out varies considerably from country to country, and in terms of how an intervention is compared to another intervention (or a control).  Of note is the fact that “sham” acupuncture (where needles are placed in apparently inert locations rather than traditional acupuncture points) is not really an inert process as it has physiological effects, so that comparing sham and “true acupuncture” may therefore not give a clear picture alone; but and form a part of a research body where acupuncture versus no treatment, vs conventional treatment or vs a different approach/modality also form part of the evidence base.

The n= figure (where quoted in research) tells you how many people were participants in the study, and usually the larger a study (when it is of good quality and design), the more likely it is to be reliable and applicable to larger populations. When (statistical) “significance” is discussed in view of studies it has a very particular meaning – it is the confidence in the data (using statistical tests) that tells us how likely a result could have just come about by chance. The lower the possibility of a chance result, the more likely it is due to the intervention in the experiment. When you are reading a trial/study, the “p” is the number telling us of significance, and this must be under 5% (or p less than 0.05) to mean we can say it is a (statistically) “significant” result.

The Research:

Sun et al’s (2008) systematic review of 15 RCT’s (n=1166) in the British Journal of Anaesthesia drew the conclusion that acupuncture around the time of surgery “may be a useful adjunct for acute postoperative pain management.” They also found lower incidence of opioid side effects such as post-operative nausea and vomiting (PONV); dizziness and urinary retention in acupuncture groups. They also stated that further large and well-designed studies are needed to further examine this area including the most effective points and timings to use.

A systematic review of 5 trials for acupuncture post back surgery (Cho et al, 2015) found encouraging but limited evidence in this area, calling for more rigorously designed trials to further the research body. Chen et al (2021, 9 RCT’s; n=671) systematic review found acupuncture could improve function and reduce PONV after total knee arthroscopy surgery, with pain relief from acupuncture mainly achieved within the 48h post-surgery. Again limitations were acknowledged in the methodical quality of studies, with further large, high quality studies called for.

Wu et al (2016, systematic review of 13 studies) found that the evidence supported acupuncture use as an adjuvant therapy post surgery on the first day, significantly reducing postoperative pain and the use of opioids. A Systematic review of 35 trials into acupuncture and post-operative pain has indicated promise in this area, indicating that further research is needed as to whether using both local and distal points can be beneficial over an either/or approach (Zhu et al, 2019).

Kumar and Tewari (2023) reviewed the evidence for dental treatment during and post-op. Root canal treatment has a high incidence of postoperative pain and potential side effects from drug treatment; and they found that from their review of 5 studies (n=312), acupuncture reduced the failure of nerve block in patients with irreversible pulpitis and controlled pain both during (intraoperative) and postoperative pain from root canal.  Acupuncture lowered the amount of painkiller drugs needed. The researchers noted that more in-depth clinical research with larger studies was warranted due to the small number and variable quality of studies.  Additionally, against a backdrop of Covid-19, researchers advocated acupuncture, as a non-aerosol generating alternative that could assist in pain management whist awaiting treatment, or where other techniques were not appropriate.

Ben-Ayre et al (2023: n=99) conducted a randomised controlled trial that examined the impact of integrative therapies on pain and anxiety among patients undergoing gynaecological oncology (cancer) surgery; addition of intraoperative acupuncture significantly reduced severe pain, compared with the control group and the group that received preoperative touch/relaxation only.  The combination of preoperative touch/relaxation and intraoperative acupuncture also improved the patients’ scores in the Measure Yourself Concerns and Wellbeing (MYCAW) questionnaire.

A small Chinese study, Zhang et al’s (2013; n=40) RCT compared the effect of electroacupuncture (EA) combined with cervical plexus block (CPB) versus sham EA plus CPB on the stress response of patients undergoing thyroid surgery. EA plus CPB significantly reduced peri-operative cardiovascular stress responses and inhibited abnormal increases of stress hormones (as measured by blood pressure, ACTH and, epinephrine, glucose and cortisol levels) and inflammatory reaction (as measured by CRP levels) in patients undergoing thyroid surgery.

Mechanisms of action:

Acupuncture studies have shown it can: provide pain relief by stimulating nerves in body tissues and leading to endorphin release (natural painkilling substances), as well as downregulating the brain and nervous system’s reaction to stress and pain (Zhao 2008; Zijlstra et al, 2003; Pomeranz, 1987).

Acupuncture stimulates the body to create its own natural painkilling substances, such as Beta Endorphins (β-Endorphin). In studies acupuncture has been shown to stimulate the production of natural painkillers called opioid-like peptides (OLPs), including β-Endorphin: For example, this was shown in an RCT in 90 patients with a range of painful disorders (Petti et al, 1998). The same study showed acupuncture also and enhanced the activity of immune cells (lymphocytes, natural killer cells and monocytes) that help fight infections and diseases (Petti et al, 1998).

Acupuncture can activate mast cells at acupoints, which release histamine, serotonin, adenosine, and other mediators that modulate nerve transmission and inflammation (Li et al, 2022)

Animal Models

Acupuncture has been shown in animal models to promote the release of factors that involved in the reduction of inflammation (vascular and immunomodulatory factors – (Kim et al, 2008; Kavoussi and Ross, 2007 [review article]; Zijlstra et al, 2003), and also to affect levels of serotonin (in an animal model), and other peptides in the brain and nervous system and modulate blood flow in the brain and elsewhere in the body, in humans (Zhong and Li, 2007; Shi et al, 2010). More detail on neurotransmitters in acupuncture for pain is in our blog.

Electroacupuncture (EA) has been shown in a rat model (Li et al, 2008) to have anti-inflammatory benefits by modulating the hypothalamic-pituitary-adrenal (HPA) axis, (HPA axis regulates the stress response and immune function).  Specifically, Li et al outlined that EA sets off a cascade in the brain (via corticotropin-releasing hormone, and adrenocorticotropic hormone) to produce cortisol, which reduces inflammation and oedema.

Dental Surgery: Immune and Anti-Inflammatory Benefits

Lisboa et al (2015) looked at the effects of electroacupuncture (EA) on experimental periodontitis in 32 rats over 10 days. Rats with induced periodontitis were divided into three groups: electroacupuncture; sham electric needles; or no treatment. A control group of healthy rats without periodontitis was also included. Post treatment measures included alveolar bone loss and periodontal ligament space around the teeth; osteoclast activity and number as indicated by RANKL and TRAP; and cytokine levels (IL-1β, MMP-8, IL-6, and COX-2) in the gums. The electroacupuncture group had less bone loss, less osteoclast activity and number, and decreased inflammatory cytokines; these suggest modulation of the inflammatory response.

Post-Operative Inflammation and Immunity Study

Immune suppression can be a complication of major surgery, so Li et al (2013) carried out an RCT to examine the effect of electroacupuncture (EA) on immune function and point specificity in patients undergoing supratentorial craniotomy.  With n=29 in three groups; control, EA group, and sham acupoints.  EA partially reduced immune suppression after surgery, as measured by the levels of cytokines and immunoglobulins in peripheral blood, however without point specificity. They concluded EA may be a useful adjunct to general anaesthesia for improving immune function in patients undergoing major surgery, although sham acupuncture also produced some benefits, so further research in larger trials would be needed.

Resources:

Evidence Based Acupuncture – Factsheet on Chronic Pain

References:

Post-Operative Pain References:

Ben‐Arye, E., Segev, Y., Galil, G., Marom, I., Gressel, O., Stein, N., Hirsh, I., Samuels, N., Schmidt, M., Schiff, E. and Lurie, I., 2023. Acupuncture during gynecological oncology surgery: A randomized controlled trial assessing the impact of integrative therapies on perioperative pain and anxiety. Cancer129(6), pp.908-919.

Chen, Z., Shen, Z., Ye, X., Xu, Y., Liu, J., Shi, X., Chen, G., Wu, J., Chen, W., Jiang, T. and Liu, W., 2021. Acupuncture for Rehabilitation After Total Knee Arthroplasty: A systematic review and meta-analysis of randomized controlled trials. Frontiers in medicine7, p.1050.

Cho, Y.H., Kim, C.K., Heo, K.H., Lee, M.S., Ha, I.H., Son, D.W., Choi, B.K., Song, G.S. and Shin, B.C., 2015. Acupuncture for acute postoperative pain after back surgery: a systematic review and meta‐analysis of randomized controlled trials. Pain Practice15(3), pp.279-291.

Kumar, G. and Tewari, S., 2023. Acupuncture for Management of Endodontic Emergencies: a Review. Journal of Acupuncture and Meridian Studies, 16(1), pp.1-10.

Li, A., Lao, L., Wang, Y., Xin, J., Ren, K., Berman, B.M., Tan, M. and Zhang, R., 2008. Electroacupuncture activates corticotrophin-releasing hormone-containing neurons in the paraventricular nucleus of the hypothalammus to alleviate edema in a rat model of inflammation. BMC Complementary and Alternative Medicine8(1), pp.1-8.

Li, G., Li, S., Wang, B. and An, L., 2013. The effect of electroacupuncture on postoperative immunoinflammatory response in patients undergoing supratentorial craniotomy. Experimental and Therapeutic Medicine6(3), pp.699-702.

Li, Y., Yu, Y., Liu, Y. and Yao, W., 2022. Mast cells and acupuncture analgesia. Cells11(5), p.860.

Sun, Y., Gan, T.J., Dubose, J.W. and Habib, A.S., 2008. Acupuncture and related techniques for postoperative pain: a systematic review of randomized controlled trials. British journal of anaesthesia101(2), pp.151-160.

Wu, M.S., Chen, K.H., Chen, I.F., Huang, S.K., Tzeng, P.C., Yeh, M.L., Lee, F.P., Lin, J.G. and Chen, C., 2016. The efficacy of acupuncture in post-operative pain management: a systematic review and meta-analysis. PloS one11(3), p.e0150367.

Zhang, C.J., Yang, F. and Li, M., 2013. Effect of electroacupuncture combined with cervical plexus block on stress responses in patients undergoing thyroid surgery. Zhen ci yan jiu= Acupuncture Research38(1), pp.1-6

Zhu, J., Xu, Q., Zou, R., Wu, W., Wang, X., Wang, Y., Ji, F., Zheng, Z. and Zheng, M., 2019. Distal acupoint stimulation versus peri-incisional stimulation for postoperative pain in open abdominal surgery: a systematic review and implications for clinical practice. BMC complementary and alternative medicine19(1), pp.1-14.

Mechanism Of Action in Pain References:

Kavoussi B, Ross BE. The neuroimmune basis of anti-inflammatory acupuncture. Integr Cancer Ther. 2007 Sep;6(3):251-7.

Kim HW, Uh DK, Yoon SY et al. Low-frequency electroacupuncture suppresses carrageenan-induced paw inflammation in mice via sympathetic post-ganglionic neurons, while high-frequency EA suppression is mediated by the sympathoadrenal medullary axis. Brain Res Bull. 2008 Mar 28;75(5):698-705.

Petti, F.., Bangrazi, A., Liguori, A., Reale, G. and Ippoliti, F., 1998. Effects of acupuncture on immune response related to opioid-like peptides. Journal of Traditional Chinese Medicine 18(1), pp.55-63.

Pomeranz B. Scientific basis of acupuncture. In: Stux G, Pomeranz B, eds. Acupuncture Textbook and Atlas. Heidelberg: Springer-Verlag; 1987:1-18.

Shi H, Li JH, Ji CF, Shang HY, Qiu EC et al.[Effect of electroacupuncture on cortical spreading depression and plasma CGRP and substance P contents in migraine rats]. Zhen Ci Yan Jiu. 2010 Feb;35(1):17-21.

Zhao ZQ. Neural mechanism underlying acupuncture analgesia. Prog Neurobiol. 2008 Aug;85(4):355-75.

Zhong G.-W. Li W. Effects of acupuncture on 5-hydroxytryptamine1F and inducible nitricoxide synthase gene expression in the brain of migraine rats. Journal of Clinical Rehabilitative Tissue Engineering Research. 2007;11(29)(pp 5761-5764)

Zijlstra FJ, van den Berg-de Lange I, Huygen FJ, Klein J. Anti-inflammatory actions of acupuncture. Mediators Inflamm. 2003 Apr;12(2):59-69.

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Shaftesbury Clinic Star of Conditions

Pain & Painful disorders – Condition Resources

See our in-depth blog about the NICE guidelines regarding recommendation of acupuncture for Chronic Pain, which is an evidence base piece informing NHS practise.

Important to know: Chronic health conditions should be addressed under direct medical supervision of your GP or consultant, and acupuncture would be an adjunct or complement to usual care – we advise that you let you doctor know when you use this approach.

Chronic Pain in General

“Acupuncture is effective for the treatment of chronic musculoskeletal, headache, and osteoarthritis pain. Treatment effects of acupuncture persist over time and cannot be explained solely in terms of placebo effects. Referral for a course of acupuncture treatment is a reasonable option for a patient with chronic pain”. (Vickers et al, 2018: large chronic pain review of high quality RCTs updating a previous meta-analysis; 39 trials, n=20827; conditions addressed chronic headache, back/neck pain and osteoarthritis)

Another recent overview (Yin et al, 2017) confirms that there is increasing evidence for acupuncture  as an effective, safe, and cost-effective intervention in chronic low back, neck, shoulder, and knee pain, as well as headaches.

The NHS body in charge of which treatments should be used in particular conditions recommends acupuncture for chronic pain:  The NICE Scenario Management guidelines (2021) for chronic pain state: “consider a course of acupuncture or dry needling, within a traditional Chinese or Western acupuncture system”

Overall, a large systematic review has found acupuncture a cost effective intervention for several painful conditions (Ambrósio et al, 2012).

There are many painful conditions for which patients seek acupuncture to address their symptoms. We have dedicated pages for arthritis, back pain, carpal tunnel, facial (TMJ) pain, shoulder and frozen shoulder, headache, migraine, kidney stones, plantar fasciitis, knee pain, sciatica, neuropathic (nerve) pain, rheumatoid arthritis, tennis and golfer’s elbow, neck pain, and pelvic pain each of which give references and further resources to evidence based factsheets and may be of use.

Mechanisms of action on pain:

Acupuncture studies have shown it can: provide pain relief by stimulating nerves in body tissues and leading to endorphin release (natural painkilling substances), as well as downregulating the brain and nervous system’s reaction to stress and pain (Zhao 2008; Zijlstra et al, 2003; Pomeranz, 1987). Acupuncture can activate mast cells at acupoints, which release histamine, serotonin, adenosine, and other mediators that modulate nerve transmission and inflammation (Li et al, 2022)

Acupuncture stimulates the body to create its own natural painkilling substances, such as Beta Endorphins (β-Endorphin). In studies acupuncture has been shown to stimulate the production of natural painkillers called opioid-like peptides (OLPs), including β-Endorphin: For example, this was shown in an RCT in 90 patients with a range of painful disorders (Petti et al, 1998). The same study showed acupuncture also and enhanced the activity of immune cells (lymphocytes, natural killer cells and monocytes) that help fight infections and diseases (Petti et al, 1998).

Acupuncture has been shown in animal models to promote the release of factors that involved in the reduction of inflammation (vascular and immunomodulatory factors – (Kim et al, 2008; Kavoussi and Ross, 2007 [review article]; Zijlstra et al, 2003), and also to affect levels of serotonin (in an animal model), and other peptides in the brain and nervous system and modulate blood flow in the brain and elsewhere in the body, in humans (Zhong and Li, 2007; Shi et al, 2010).

Zijlstra et al (2003) reviewed the effects and mechanisms of acupuncture in treating various inflammatory diseases and conditions. They proposed the mechanisms of action:

  • Acupuncture may release neuropeptides from nerve endings that have vasodilative and anti-inflammatory effects through CGRP.
  • Acupuncture may also interact with substance P, which is involved in pain transmission and inflammation.
  • Acupuncture may contribute to analgesia by stimulating the release of β-endorphin, which binds to opioid receptors and inhibits pain signals.
  • Acupuncture may influence the balance between cell-specific pro-inflammatory and anti-inflammatory cytokines such as TNF-α and IL-10.

More detail on neurotransmitters in acupuncture for pain is in our blog.

In an animal study, Sun et al, (2023) were able to show that electroacupuncture worked by blocking a pathway in the synovium called TLR2/4, that activates immune response and inflammation.  The researchers therefore suggested the anti-inflammatory and analgesic effects of EA were related to the inhibition of TLR2/4 signalling on synovial fibroblasts and macrophages.

Liu et al (2014) investigated the anti-inflammatory effect of electroacupuncture (EA) in a rat tissue chamber model of inflammation. The study found that EA inhibited the p65 protein from moving to the cell nucleus to activate inflammatory genes.  EA also increased the expression of IκBα, which binds to NF-κB and preventing it from entering the nucleus to activate inflammatory genes. These interfere with the IκB/NF-κB pathway that regulates inflammation, indicating one of the mechanisms of acupuncture in modulating immune / inflammatory response.

Wang et al (2023) reviewed evidence from animal and human studies regarding the immunomodulatory mechanism of acupuncture, regarding its effects on different components of the immune system, such as mast cells, macrophages, neutrophils, natural killer cells, astrocytes, microglia, CD4+ and CD8+ T cells, and cytokines.  They detailed the neuroanatomical mechanisms of acupuncture in immunomodulation, such as the vagal-adrenal pathway, the cholinergic anti-inflammatory pathway, the spinal sympathetic pathway, the brain-gut axis, and the hypothalamus-pituitary-adrenal axis.  They concluded that studies to support the role of acupuncture in regulating inflammation, infection, allergy, pain, and tissue repair.

Electroacupuncture (EA) has been shown in a rat model (Li et al, 2008) to have anti-inflammatory benefits by modulating the hypothalamic-pituitary-adrenal (HPA) axis, (HPA axis regulates the stress response and immune function).  Specifically, Li et al outlined that EA sets off a cascade in the brain (via corticotropin-releasing hormone, and adrenocorticotropic hormone) to produce cortisol, which reduces inflammation and oedema.

About the research: It is worth noting that in research, randomised controlled studies (RCT) are the most reliable in terms of quality of evidence, with a systematic review or meta analysis of numerous studies being the best way of seeing the overall picture of the state of the evidence. Below we have a selection of the available research, which does include some larger RCTs, and reviews of the literature alongside smaller studies. The n= figure tells you how many people were participants in the study.

Resources:

Evidence Based Acupuncture – Factsheet on Chronic Pain

References:

Chronic Pain in General References:

Vickers, A.J., Vertosick, E.A., Lewith, G., MacPherson, H., Foster, N.E., Sherman, K.J., Irnich, D., Witt, C.M., Linde, K. and Acupuncture Trialists’ Collaboration, 2018. Acupuncture for chronic pain: update of an individual patient data meta-analysis. The Journal of Pain, 19(5), pp.455-474.

Birch, S., Lee, M.S., Alraek, T. and Kim, T.H., 2018. Overview of treatment guidelines and clinical practical guidelines that recommend the use of acupuncture: a bibliometric analysis. The Journal of Alternative and Complementary Medicine24(8), pp.752-769.

NICE 2021 Chronic pain: Scenario: Management Last revised in April 2021

Yin, C., Buchheit, T.E. and Park, J.J., 2017. Acupuncture for chronic pain: an update and critical overview. Current opinion in anaesthesiology30(5), pp.583-592.

Mechanism of Action References:

Kavoussi B, Ross BE. The neuroimmune basis of anti-inflammatory acupuncture. Integr Cancer Ther. 2007 Sep;6(3):251-7.

Kim HW, Uh DK, Yoon SY et al. Low-frequency electroacupuncture suppresses carrageenan-induced paw inflammation in mice via sympathetic post-ganglionic neurons, while high-frequency EA suppression is mediated by the sympathoadrenal medullary axis. Brain Res Bull. 2008 Mar 28;75(5):698-705.

Li, A., Lao, L., Wang, Y., Xin, J., Ren, K., Berman, B.M., Tan, M. and Zhang, R., 2008. Electroacupuncture activates corticotrophin-releasing hormone-containing neurons in the paraventricular nucleus of the hypothalammus to alleviate edema in a rat model of inflammation. BMC Complementary and Alternative Medicine8(1), pp.1-8.

Li, Y., Yu, Y., Liu, Y. and Yao, W., 2022. Mast cells and acupuncture analgesia. Cells11(5), p.860.

Liu, F., Fang, J., Shao, X., Liang, Y., Wu, Y. and Jin, Y., 2014. Electroacupuncture exerts an anti-inflammatory effect in a rat tissue chamber model of inflammation via suppression of NF-κB activation. Acupuncture in Medicine32(4), pp.340-345.

Petti, F.., Bangrazi, A., Liguori, A., Reale, G. and Ippoliti, F., 1998. Effects of acupuncture on immune response related to opioid-like peptides. Journal of Traditional Chinese Medicine 18(1), pp.55-63.

Pomeranz B. Scientific basis of acupuncture. In: Stux G, Pomeranz B, eds. Acupuncture Textbook and Atlas. Heidelberg: Springer-Verlag; 1987:1-18.

Shi H, Li JH, Ji CF, Shang HY, Qiu EC et al.[Effect of electroacupuncture on cortical spreading depression and plasma CGRP and substance P contents in migraine rats]. Zhen Ci Yan Jiu. 2010 Feb;35(1):17-21.

Sun, S.Y., Yan, Q.Q., Qiao, L.N., Shi, Y.N., Tan, L.H. and Yang, Y.S., 2023. Electroacupuncture Alleviates Pain Responses and Inflammation in Collagen-Induced Arthritis Rats via Suppressing the TLR2/4-MyD88-NF-κB Signaling Pathway. Evidence-Based Complementary and Alternative Medicine2023.

Wang, M., Liu, W., Ge, J. and Liu, S., 2023. The immunomodulatory mechanisms for acupuncture practice. Frontiers in Immunology14.

Zhao ZQ. Neural mechanism underlying acupuncture analgesia. Prog Neurobiol. 2008 Aug;85(4):355-75.

Zhong G.-W. Li W. Effects of acupuncture on 5-hydroxytryptamine1F and inducible nitricoxide synthase gene expression in the brain of migraine rats. Journal of Clinical Rehabilitative Tissue Engineering Research. 2007;11(29)(pp 5761-5764)

Zijlstra FJ, van den Berg-de Lange I, Huygen FJ, Klein J. Anti-inflammatory actions of acupuncture. Mediators Inflamm. 2003 Apr;12(2):59-69.

Helen
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Shaftesbury Clinic Star of Conditions

Musculoskeletal System – Resources

Important to know: Chronic health conditions should be addressed under direct medical supervision of your GP or consultant, and acupuncture would be an adjunct or complement to usual care – we advise that you let you doctor know when you use this approach.

The MusculoSkeletal (MSK) system concerns the joints, bones, tendons, ligaments and muscles of the body and is often a cause for patients to present to acupuncture as symptoms in this system can be of pain, stiffness, affects on flexibility and mobility in joints and muscles.

Interpreting the research:

When reading health research, it is important to know that Systematic Reviews or Meta Analyses of a large number of high-quality research studies are the very best way to be able to say to what extent a given treatment can address a condition, symptom, or set of symptoms.  The next best level of evidence is the individual Randomised Controlled Study (RCT) which uses a systematic technique to compare two or more groups of patients receiving different treatments (or a treatment against a “control”, or no treatment).  In acupuncture trials, the nature of the control group is of particular interest as it is hard to blind a patient to whether they are having a needle inserted or not, and even more challenging to blind the researcher/team to this.

The means and quality of how research is carried out varies considerably from country to country, and in terms of how an intervention is compared to another intervention (or a control).  Of note is the fact that “sham” acupuncture (where needles are placed in apparently inert locations rather than traditional acupuncture points) is not really an inert process as it has physiological effects, so that comparing sham and “true acupuncture” may therefore not give a clear picture alone; but and form a part of a research body where acupuncture versus no treatment, vs conventional treatment or vs a different approach/modality also form part of the evidence base.

The n= figure (where quoted in research) tells you how many people were participants in the study, and usually the larger a study (when it is of good quality and design), the more likely it is to be reliable and applicable to larger populations. When (statistical) “significance” is discussed in view of studies it has a very particular meaning – it is the confidence in the data (using statistical tests) that tells us how likely a result could have just come about by chance. The lower the possibility of a chance result, the more likely it is due to the intervention in the experiment. When you are reading a trial/study, the “p” is the number telling us of significance, and this must be under 5% (or p less than 0.05) to mean we can say it is a (statistically) “significant” result.

The Research:

Chronic Pain in General

“Acupuncture is effective for the treatment of chronic musculoskeletal, headache, and osteoarthritis pain. Treatment effects of acupuncture persist over time and cannot be explained solely in terms of placebo effects. Referral for a course of acupuncture treatment is a reasonable option for a patient with chronic pain”. (Vickers et al, 2018: large chronic pain review of high quality RCTs updating a previous meta-analysis; 39 trials, n=20827; conditions addressed chronic headache, back/neck pain and osteoarthritis)

Another recent overview (Yin et al, 2017) confirms that there is increasing evidence for acupuncture  as an effective, safe, and cost-effective intervention in chronic low back, neck, shoulder, and knee pain, as well as headaches.

The NHS body in charge of which treatments should be used in particular conditions recommends acupuncture for chronic pain:  The NICE Scenario Management guidelines (2021) for chronic pain state: “consider a course of acupuncture or dry needling, within a traditional Chinese or Western acupuncture system”

Overall, a large systematic review has found acupuncture a cost effective intervention for several painful conditions (Ambrósio et al, 2012).

Plantar Fasciitis

The British Acupuncture Council has a Research digest where they examined some recent studies on plantar heel pain (plantar fasciitis – link below).  Systematic reviews by Thiagarajah (2017) found promising evidence for short term pain relief in the condition, but looked to future long-term studies to improve the evidence base, and Salvioli et al’s (2017) systematic review of the same looked at 20 studies entailing 9 different types of intervention found improvement over placebo, but looked toward future studies to corroborate this.

Tennis Elbow

The British Acupuncture Council has a Research digest where they examined some recent studies on lateral elbow pain, as well as an evidence based factsheet (tennis elbow – links are below), finding promising evidence in the field.   

Gadau et al, (2014) conducted a systematic review of 19 RCTs of varying quality were examined, and overall the evidence suggested acupuncture was more effective than sham control.  Tang et al (2015) looed at a smaller number of RCT and were more tentative about the outcomes due to concern over trial designs and highlighted a need for further research.

Recent small trials include one comparing acupuncture and manipulation (n=35; Hsu et al, 2016) in which both groups experienced improvement in pain and function.  Another looked at ultrasound imaging of the affected tendon to evaluate acupuncture’s effect, finding reduction of tendon thickness after 10 sessions as well as improvement in pain scores (Ural et al 2017; n-41).  A further trial (Wong  et al, 2017; n=34) compared acupuncture and extracorporeal shockwave therapy (ESWT), finding a trend of improvement in pain scores in both groups.

Temporomandibular Pain (TM / TMJ)

The British Acupuncture Council has a Research digest where they examined some recent studies on temporomandibular pain, as well as an evidence based factsheet (links are below), finding promising evidence in the field.   Fernandes et al (2017) systematic review looked at 4 trials into TMD of muscular origin, finding acupuncture appears to relieve symptoms in this condition, albeit they noted evidence quality was limited and further research was needed in future in this area.

Justo et al (2017) carried out a systematic review of 4 articles finding that overall, acupuncture was effective in relieving myofascial pain symptoms in patients with temporomandibular dysfunction, albeit that the quality and quantity of the studies meant further research is needed in the area, including for long term outcomes.  This echoes La Touche et al’s earlier (2010) systematic review where they found that the majority of the studies reported that  acupuncture was statistically significant for short term pain relief of myofascial TMD but with the proviso that more studies with larger sample sizes, longer-term follow-up and higher design quality were required in the future to corroborate these trends.

Shoulder Pain

The British Acupuncture Council has a Research digest where they examined some recent studies on shoulder pain, as well as an evidence based factsheet (links are below)

Shoulder pain was included in large chronic pain review of RCTs updating a previous meta-analysis (Vickers et al, 2018; 39 trials, n=20827), acupuncture showed a significant clinical superiority over usual care and a smaller advantage over sham.

Another systematic review and meta analysis of acupuncture in shoulder pain post stroke (Lee & Lim, 2016), saw that over 12 RCTs  found it more effective that rehabilitation alone  finding it a useful for this, with the authors calling for  further trials of high quality to corroborate this.

Another recent overview (Yin et al, 2017) confirms that there is increasing evidence for acupuncture  as an effective, safe, and cost-effective intervention in chronic shoulder pain.

Neck Pain

Since 1005, over 50 NHS publications have recommended acupuncture for neck pain (many more worldwide; Birch et al 2018).

A randomised trial comparing Alexander technique with acupuncture or usual care alone (MacPherson et al, 2015; n=517) found both acupuncture and Alexander Technique benefitted the participants after a series of sessions, and this benefit ensured at 12 months post treatment, in that their disability level and pain measures were improved.   Essex et al (2017) looked at acupuncture and Alexander technique (ATLAS trial) data, in terms of cost effectiveness, using the NHS standard quality adjusted life years (QALYs) as well as neck pain measures, finding acupuncture to be cost effective as well as effective.  Alexander Technque whilst effect, was not cost effective as it cost more per the amount of gain that could be made.

Van der Velde et al’s (2016) review of whiplash acquired neck pain and disorders, finding acupuncture appeared a cost-effective intervention in these cases.  Seo et al, 2017 in a systematic review and meta-analysis of 16 trials of (electro)acupuncture in chronic neck pain found acupuncture to be effective, and even more so in combination with routine care, their drawings were tentative due to research quality of the trials used.

The British Acupuncture Council has a Research digest where they examined some recent studies on shoulder pain, as well as an evidence based factsheet (links are below).  One such study was Ho et al, (2017), an RCT of abdominal acupuncture in neck pain in Hong Kong (n=154), finding the true acupuncture group experienced symptomatic relief as well as quality of life measurement improvements. 

Another recent overview (Yin et al, 2017) confirms that there is increasing evidence for acupuncture  as an effective, safe, and cost-effective intervention in chronic neck pain.

Back pain

Back pain is the single most common condition for which patients seek acupuncture, and many parts of the NHS either offer or recommend acupuncture for back pain, with over 100 clinical practice guidelines worldwide giving positive recommendations for acupuncture for back pain (Birch et al, 2018).  The Scottish Intercollegiate Guidelines Network recommends acupuncture for back pain.

Back pain was included in large chronic pain review of RCTs updating a previous meta-analysis (Vickers et al, 2018; 39 trials, n=20827) acupuncture showed a significant clinical superiority over usual care and a smaller advantage over sham.  The researchers found that treatment effects persisted over time and couldn’t be explained solely in terms of placebo effects, meaning that acupuncture treatment was a reasonable option for some types of chronic pain, including back pain.

The American College of Physicians’ clinical practise guidelines nonpharmacologic treatment options for low back pain reviewed new evidence and found acupuncture useful for pain relief and to some extent function, although they had reservations about the strength of the evidence, meaning long term studies are needed (Chou et al, 2016, 2017).

The Clinical Practise Guidelines for managing low back pain, a systematic review on 13 sets of guidelines by the Ontario Protocol for Traffic Injury Management (OPTIMa) Collaboration looked at non-invasive techniques including acupuncture – acupuncture was one of the top recommended (non-invasive) interventions in the guidelines, where 10 sessions over 12 weeks was the recommended intervention for low back pain, and commented that high-quality guidelines support this whilst underlining that different techniques have different levels of effectiveness (Wong et al, 2017).

Another recent overview (Yin et al, 2017) confirms that there is increasing evidence for acupuncture  as an effective, safe, and cost-effective intervention in chronic low back pain.

Sciatica

Sciatica is also known by its medical name lumbar radiculopathy, and is where nerves become impinged in the lower back, causing referred pain and neurological (nerve-related) symptoms into the areas that nerve supplies, usually buttock and lower limb.

Evidence suggests acupuncture may provide pain relief in sciatica; RCTs such as Wang (2009; n=139) comparing acupuncture and TENS and finding in favour of acupuncture; another finding for acupuncture’s effectiveness along with an increase in pain threshold in the true acupuncture group (Chen et al, 2009; n=90).

Other studies have looked at how the above may come about, for example Inoue et al (2008), in a clinical trial where patients had improvement in pain and nerve symptoms from lower back impingement, and put forward the theory that as seen in animal studies the blood flow in the region of the sciatic nerve was modulated by acupuncture, as well as the well known mechanisms of action of acupuncture in pain relief and inflammation reduction.

A network meta-analysis comparing 21 different therapies for sciatica (Lewis et al, 2015), finding acupuncture the second-best therapy in terms of addressing pain intensity and in terms of overall effect and having a statistically significant effect, leading them to suggest it should be considered as a treatment option.

Knee pain

Knee pain was included in large chronic pain review of RCTs updating a previous meta-analysis (Vickers et al, 2018; 39 trials, n=20827) acupuncture showed a significant clinical superiority over usual care.

A systematic review and meta-analysis of 17 trials, showed significant benefits whereby in patients in study groups having received acupuncture, this was associated with significantly reduced chronic knee pain 12 weeks (Zhang et al, 2017).  Specifically comparing treatments including acupuncture in osteoarthritic knee pain, Corbett et al’s (2013, n=9709) systematic review and network meta-analysis found that acupuncture could be considered as one of the more effective physical treatments for alleviating osteoarthritis knee pain in the short-term: Acupuncture was ranked second out of 21 physical treatments in this study.  The team also clarified that further research is also warranted in this area, due to the quality of the research available in some treatment areas across the studies.

About the research: It is worth noting that in research, randomised controlled studies (RCT) are the most reliable in terms of quality of evidence, with a systematic review or meta analysis of numerous studies being the best way of seeing the overall picture of the state of the evidence. Below we have a selection of the available research, which does include some larger RCTs, and reviews of the literature alongside smaller studies. The n= figure tells you how many people were participants in the study.

Mechanisms of action:

Acupuncture studies have shown it can: provide pain relief by stimulating nerves in body tissues and leading to endorphin release (natural painkilling substances), as well as downregulating the brain and nervous system’s reaction to stress and pain (Zhao 2008; Zijlstra et al, 2003; Pomeranz, 1987).

Acupuncture stimulates the body to create its own natural painkilling substances, such as Beta Endorphins (β-Endorphin). In studies acupuncture has been shown to stimulate the production of natural painkillers called opioid-like peptides (OLPs), including β-Endorphin: For example, this was shown in an RCT in 90 patients with a range of painful disorders (Petti et al, 1998). The same study showed acupuncture also and enhanced the activity of immune cells (lymphocytes, natural killer cells and monocytes) that help fight infections and diseases (Petti et al, 1998).

Acupuncture can activate mast cells at acupoints, which release histamine, serotonin, adenosine, and other mediators that modulate nerve transmission and inflammation (Li et al, 2022)

Zijlstra et al (2003) reviewed the effects and mechanisms of acupuncture in treating various inflammatory diseases and conditions. They proposed the mechanisms of action:

  • Acupuncture may release neuropeptides from nerve endings that have vasodilative and anti-inflammatory effects through CGRP.
  • Acupuncture may also interact with substance P, which is involved in pain transmission and inflammation.
  • Acupuncture may contribute to analgesia by stimulating the release of β-endorphin, which binds to opioid receptors and inhibits pain signals.
  • Acupuncture may influence the balance between cell-specific pro-inflammatory and anti-inflammatory cytokines such as TNF-α and IL-10.

Animal Model Research

Acupuncture has been shown in animal models to promote the release of factors that involved in the reduction of inflammation (vascular and immunomodulatory factors – (Kim et al, 2008; Kavoussi and Ross, 2007 [review article]; Zijlstra et al, 2003), and also to affect levels of serotonin (in an animal model), and other peptides in the brain and nervous system and modulate blood flow in the brain and elsewhere in the body, in humans (Zhong and Li, 2007; Shi et al, 2010).

Liu et al (2014) investigated the anti-inflammatory effect of electroacupuncture (EA) in a rat tissue chamber model of inflammation. The study found that EA inhibited the p65 protein from moving to the cell nucleus to activate inflammatory genes.  EA also increased the expression of IκBα, which binds to NF-κB and preventing it from entering the nucleus to activate inflammatory genes. These interfere with the IκB/NF-κB pathway that regulates inflammation, indicating one of the mechanisms of acupuncture in modulating immune / inflammatory response.

Electroacupuncture (EA) has been shown in a rat model (Li et al, 2008) to have anti-inflammatory benefits by modulating the hypothalamic-pituitary-adrenal (HPA) axis, (HPA axis regulates the stress response and immune function).  Specifically, Li et al outlined that EA sets off a cascade in the brain (via corticotropin-releasing hormone, and adrenocorticotropic hormone) to produce cortisol, which reduces inflammation and oedema.

Regarding Your Individual Condition and Symptoms:

Whilst the scientific studies are of great interest to researchers and acupuncturists in terms of comparing protocols, for the patient not versed in research they are less accessible, which is why when we asked “can acupuncture work for my (condition or symptom) we are not able to give a simple yes or no response.  We are able to tell you what experience we have had in our decades of experience in practise, of the types of outcomes we have seen in similar cases, and give you an idea of our level of experience and knowledge in that area, and how this could relate to your own individual situation.  For this, we recommend booking a free telephone consultation where we can answer any questions you have and give a realistic appraisal of what acupuncture may be able to provide.

Resources:

British Acupuncture Council evidence based factsheet about Chronic Pain including specific research, trials and mechanisms of action for acupuncture in this condition.

British Acupuncture Council Research Digest – Musculoskeletal chronic pain conditions (plantar fasciitis; tennis elbow; temporomandibular pain, shoulder pain, sciatica, back pain) (approx halfway down the document)

BAcC Sciatica Factsheet

BacC Back Pain Factsheet

BAcC Sports Injuries Factsheet

BAcC Tendonitis (Tennis / Golfer’s Elbow) Factsheet

BAcC Facial Pain Factsheet

BAcC Frozen Shoulder Factsheet

BAcC Headache Factsheet

BAcC Neck Pain Factsheet

BAcC Osteoarthritis of the Knee Factsheet

References General:

Ambrósio, E.M.M., Bloor, K. and MacPherson, H., 2012. Costs and consequences of acupuncture as a treatment for chronic pain: a systematic review of economic evaluations conducted alongside randomised controlled trials. Complementary therapies in medicine, 20(5), pp.364-374.

Birch, S., Lee, M.S., Alraek, T. and Kim, T.H., 2018. Overview of treatment guidelines and clinical practical guidelines that recommend the use of acupuncture: a bibliometric analysis. The Journal of Alternative and Complementary Medicine24(8), pp.752-769.

Kavoussi B, Ross BE. The neuroimmune basis of anti-inflammatory acupuncture. Integr Cancer Ther. 2007 Sep;6(3):251-7.

Kim HW, Uh DK, Yoon SY et al. Low-frequency electroacupuncture suppresses carrageenan-induced paw inflammation in mice via sympathetic post-ganglionic neurons, while high-frequency EA suppression is mediated by the sympathoadrenal medullary axis. Brain Res Bull. 2008 Mar 28;75(5):698-705.

Li, A., Lao, L., Wang, Y., Xin, J., Ren, K., Berman, B.M., Tan, M. and Zhang, R., 2008. Electroacupuncture activates corticotrophin-releasing hormone-containing neurons in the paraventricular nucleus of the hypothalammus to alleviate edema in a rat model of inflammation. BMC Complementary and Alternative Medicine8(1), pp.1-8.

Liu, F., Fang, J., Shao, X., Liang, Y., Wu, Y. and Jin, Y., 2014. Electroacupuncture exerts an anti-inflammatory effect in a rat tissue chamber model of inflammation via suppression of NF-κB activation. Acupuncture in Medicine32(4), pp.340-345.

Li, Y., Yu, Y., Liu, Y. and Yao, W., 2022. Mast cells and acupuncture analgesia. Cells11(5), p.860.

NICE 2021 Chronic pain: Scenario: Management Last revised in April 2021

Petti, F.., Bangrazi, A., Liguori, A., Reale, G. and Ippoliti, F., 1998. Effects of acupuncture on immune response related to opioid-like peptides. Journal of Traditional Chinese Medicine 18(1), pp.55-63.

Pomeranz B. Scientific basis of acupuncture. In: Stux G, Pomeranz B, eds. Acupuncture Textbook and Atlas. Heidelberg: Springer-Verlag; 1987:1-18.

Shi H, Li JH, Ji CF, Shang HY, Qiu EC et al.[Effect of electroacupuncture on cortical spreading depression and plasma CGRP and substance P contents in migraine rats]. Zhen Ci Yan Jiu. 2010 Feb;35(1):17-21.

Yin, C., Buchheit, T.E. and Park, J.J., 2017. Acupuncture for chronic pain: an update and critical overview. Current opinion in anaesthesiology30(5), pp.583-592.

Zhao ZQ. Neural mechanism underlying acupuncture analgesia. Prog Neurobiol. 2008 Aug;85(4):355-75.

Zhong G.-W. Li W. Effects of acupuncture on 5-hydroxytryptamine1F and inducible nitricoxide synthase gene expression in the brain of migraine rats. Journal of Clinical Rehabilitative Tissue Engineering Research. 2007;11(29)(pp 5761-5764)

Zijlstra FJ, van den Berg-de Lange I, Huygen FJ, Klein J. Anti-inflammatory actions of acupuncture. Mediators Inflamm. 2003 Apr;12(2):59-69.

Plantar Fasciitis References

Salvioli, S., Guidi, M. and Marcotulli, G., 2017. The effectiveness of conservative, non-pharmacological treatment, of plantar heel pain: a systematic review with meta-analysis. The Foot33, pp.57-67.

Thiagarajah, A.G., 2017. How effective is acupuncture for reducing pain due to plantar fasciitis?. Singapore medical journal58(2), p.92.

Tennis Elbow References

Gadau, M., Yeung, W.F., Liu, H., Zaslawski, C., Tan, Y.S., Wang, F.C., Bangrazi, S., Chung, K.F., Bian, Z.X. and Zhang, S.P., 2014. Acupuncture and moxibustion for lateral elbow pain: a systematic review of randomized controlled trials. BMC Complementary and Alternative Medicine14(1), pp.1-19.

Tang, H., Fan, H., Chen, J., Yang, M., Yi, X., Dai, G., Chen, J., Tang, L., Rong, H., Wu, J. and Liang, F., 2015. Acupuncture for lateral epicondylitis: a systematic review. Evidence-based complementary and alternative medicine2015.

Hsu, C.Y., Lee, K.H., Huang, H.C., Chang, Z.Y., Chen, H.Y. and Yang, T.H., 2016. Manipulation therapy relieved pain more rapidly than acupuncture among lateral epicondylalgia (tennis elbow) patients: a randomized controlled trial with 8-week follow-up. Evidence-Based Complementary and Alternative Medicine2016.

Ural, F.G., Öztürk, G.T., Bölük, H. and Akkuş, S., 2017. Ultrasonographic evaluation of acupuncture effect on common extensor tendon thickness in patients with lateral epicondylitis: a randomized controlled study. The Journal of Alternative and Complementary Medicine23(10), pp.819-822.

Wong, C.W.Y., Ng, E.Y.L., Fung, P.W., Mok, K.M., Yung, P.S.H. and Chan, K.M., 2017. Comparison of treatment effects on lateral epicondylitis between acupuncture and extracorporeal shockwave therapy. Asia-Pacific journal of sports medicine, arthroscopy, rehabilitation and technology7, pp.21-26.

Temporomandibular Joint Disorder References

Justo, A.C.B.D.C., Moura, D.M.D., Da Silva, L.G.D., De Almeida, E.O. and Barbosa, G.A.S., 2017. Acupuncture in temporomandibular disorder myofascial pain treatment: a systematic review. CEP59056, p.000.

La Touche, R., Angulo-Díaz-Parreño, S., de-la-Hoz, J.L., Fernández-Carnero, J., Ge, H.Y., Linares, M.T., Mesa, J. and Sánchez-Gutiérrez, J., 2010. Effectiveness of acupuncture in the treatment of temporomandibular disorders of muscular origin: a systematic review of the last decade. The Journal of Alternative and Complementary Medicine16(1), pp.107-112.

Fernandes AC, Duarte Moura DM, Da Silva LGD, De Almeida EO, Barbosa GAS. Acupuncture in Temporomandibular Disorder Myofascial Pain Treatment: A Systematic Review. J Oral Facial Pain Headache. 2017 Summer;31(3):225-232. doi: 10.11607/ofph.1719. PMID: 28738107.

Shoulder References

Vickers, A.J., Vertosick, E.A., Lewith, G., MacPherson, H., Foster, N.E., Sherman, K.J., Irnich, D., Witt, C.M., Linde, K. and Acupuncture Trialists’ Collaboration, 2018. Acupuncture for chronic pain: update of an individual patient data meta-analysis. The Journal of Pain19(5), pp.455-474.

Lee, S.H. and Lim, S.M., 2016. Acupuncture for poststroke shoulder pain: a systematic review and meta-analysis. Evidence-Based Complementary and Alternative Medicine2016.

Yin, C., Buchheit, T.E. and Park, J.J., 2017. Acupuncture for chronic pain: an update and critical overview. Current opinion in anaesthesiology30(5), pp.583-592.

Neck Pain References

MacPherson, H., Tilbrook, H., Richmond, S., Woodman, J., Ballard, K., Atkin, K., Bland, M., Eldred, J., Essex, H., Hewitt, C. and Hopton, A., 2015. Alexander technique lessons or acupuncture sessions for persons with chronic neck pain: a randomized trial. Annals of internal medicine, 163(9), pp.653-662.

van der Velde, G., Yu, H., Paulden, M., Côté, P., Varatharajan, S., Shearer, H.M., Wong, J.J., Randhawa, K., Southerst, D., Mior, S. and Sutton, D., 2016. Which interventions are cost-effective for the management of whiplash-associated and neck pain-associated disorders? A systematic review of the health economic literature by the Ontario Protocol for Traffic Injury Management (OPTIMa) Collaboration. The Spine Journal, 16(12), pp.1582-1597.

Essex, H., Parrott, S., Atkin, K., Ballard, K., Bland, M., Eldred, J., Hewitt, C., Hopton, A., Keding, A., Lansdown, H. and Richmond, S., 2017. An economic evaluation of Alexander Technique lessons or acupuncture sessions for patients with chronic neck pain: A randomized trial (ATLAS). PloS one, 12(12), p.e0178918.

Seo, S.Y., Lee, K.B., Shin, J.S., Lee, J., Kim, M.R., Ha, I.H., Ko, Y. and Lee, Y.J., 2017. Effectiveness of acupuncture and electroacupuncture for chronic neck pain: a systematic review and meta-analysis. The American journal of Chinese medicine, 45(08), pp.1573-1595.

Ho, L.F., Lin, Z.X., Leung, A.W.N., Chen, L., Zhang, H., Ng, B.F.L., Ziea, E.T.C. and Guo, Y., 2017. Efficacy of abdominal acupuncture for neck pain: a randomized controlled trial. PloS one, 12(7), p.e0181360.

Birch, S., Lee, M.S., Alraek, T. and Kim, T.H., 2018. Overview of treatment guidelines and clinical practical guidelines that recommend the use of acupuncture: a bibliometric analysis. The Journal of Alternative and Complementary Medicine, 24(8), pp.752-769.

Yin, C., Buchheit, T.E. and Park, J.J., 2017. Acupuncture for chronic pain: an update and critical overview. Current opinion in anaesthesiology30(5), pp.583-592.

Back Pain References

Vickers, A.J., Vertosick, E.A., Lewith, G., MacPherson, H., Foster, N.E., Sherman, K.J., Irnich, D., Witt, C.M., Linde, K. and Acupuncture Trialists’ Collaboration, 2018. Acupuncture for chronic pain: update of an individual patient data meta-analysis. The Journal of Pain, 19(5), pp.455-474.

Birch, S., Lee, M.S., Alraek, T. and Kim, T.H., 2018. Overview of treatment guidelines and clinical practical guidelines that recommend the use of acupuncture: a bibliometric analysis. The Journal of Alternative and Complementary Medicine, 24(8), pp.752-769.

Chou, R., Deyo, R., Friedly, J., Skelly, A., Hashimoto, R., Weimer, M., Fu, R., Dana, T., Kraegel, P., Griffin, J. and Grusing, S., 2017. Nonpharmacologic therapies for low back pain: a systematic review for an American College of Physicians Clinical Practice Guideline. Annals of internal medicine, 166(7), pp.493-505.

Chou, R., Deyo, R., Friedly, J., Skelly, A., Hashimoto, R., Weimer, M., Fu, R., Dana, T., Kraegel, P., Griffin, J. and Grusing, S., 2016. Noninvasive treatments for low back pain.

Wong, J.J., Côté, P., Sutton, D.A., Randhawa, K., Yu, H., Varatharajan, S., Goldgrub, R., Nordin, M., Gross, D.P., Shearer, H.M. and Carroll, L.J., 2017. Clinical practice guidelines for the noninvasive management of low back pain: A systematic review by the Ontario Protocol for Traffic Injury Management (OPTIMa) Collaboration. European journal of pain21(2), pp.201-216.

Lewis, R.A., Williams, N.H., Sutton, A.J., Burton, K., Din, N.U., Matar, H.E., Hendry, M., Phillips, C.J., Nafees, S., Fitzsimmons, D. and Rickard, I., 2015. Comparative clinical effectiveness of management strategies for sciatica: systematic review and network meta-analyses. The Spine Journal15(6),

Yin, C., Buchheit, T.E. and Park, J.J., 2017. Acupuncture for chronic pain: an update and critical overview. Current opinion in anaesthesiology30(5), pp.583-592.pp.1461-1477.

Sciatica References

Chen, M.R., Ping, W., Cheng, G., Xiang, G.U.O., Wei, G.W. and Cheng, X.H., 2009. The warming acupuncture for treatment of sciatica in 30 cases. Journal of Traditional Chinese Medicine, 29(1), pp.50-53.

Inoue, M., Kitakoji, H., Yano, T., Ishizaki, N., Itoi, M. and Katsumi, Y., 2008. Acupuncture treatment for low back pain and lower limb symptoms—the relation between acupuncture or electroacupuncture stimulation and sciatic nerve blood flow. Evidence-Based Complementary and Alternative Medicine, 5(2), pp.133-143.

Lewis, R.A., Williams, N.H., Sutton, A.J., Burton, K., Din, N.U., Matar, H.E., Hendry, M., Phillips, C.J., Nafees, S., Fitzsimmons, D. and Rickard, I., 2015. Comparative clinical effectiveness of management strategies for sciatica: systematic review and network meta-analyses. The Spine Journal, 15(6), pp.1461-1477.

Wang ZX. [Clinical observation on electroacupuncture at acupoints for treatment of senile radical sciatica]. Zhongguo Zhenjiu 2009; 29(2): 126-8.

Knee References

Corbett, M.S., Rice, S.J.C., Madurasinghe, V., Slack, R., Fayter, D.A., Harden, M., Sutton, A.J., Macpherson, H. and Woolacott, N.F., 2013. Acupuncture and other physical treatments for the relief of pain due to osteoarthritis of the knee: network meta-analysis. Osteoarthritis and cartilage, 21(9), pp.1290-1298.

Vickers, A.J., Vertosick, E.A., Lewith, G., MacPherson, H., Foster, N.E., Sherman, K.J., Irnich, D., Witt, C.M., Linde, K. and Acupuncture Trialists’ Collaboration, 2018. Acupuncture for chronic pain: update of an individual patient data meta-analysis. The Journal of Pain19(5), pp.455-474.

Yin, C., Buchheit, T.E. and Park, J.J., 2017. Acupuncture for chronic pain: an update and critical overview. Current opinion in anaesthesiology30(5), pp.583-592. Zhang, Q., Yue, J., Golianu, B., Sun, Z. and Lu, Y., 2017. Updated systematic review and meta-analysis of acupuncture for chronic knee pain. Acupuncture in Medicine, 35(6), pp.392-403

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Shaftesbury Clinic Star of Conditions

Migraine – Condition Resources

Important to know: Chronic health conditions should be addressed under direct medical supervision of your GP or consultant, and acupuncture would be an adjunct or complement to usual care – we advise that you let you doctor know when you use this approach.

Over 80 NHS publications since 2005 have recommended acupuncture both for tension headaches and migraine (and many more worldwide (Birch et al, 2018)

About the research: It is worth noting that in research, randomised controlled studies (RCT) are the most reliable in terms of quality of evidence, with a systematic review or meta analysis of numerous studies being the best way of seeing the overall picture of the state of the evidence. Below we have a selection of the available research, which does include some larger RCTs, and reviews of the literature alongside smaller studies. The n= figure tells you how many people were participants in the study.

The British Acupuncture Council (BAcC) reviewed the evidence for acupuncture in migraine and tension headaches, where a large number of trials have been carried out, considerably more effective than placebo (Tavola et al, 1992.) The BAcC concluded there was some evidence that acupuncture has a significant therapeutic effect on symptoms such as pain and frequency in migraine attacks. It was also noted in a crossover research trial that in addition to demonstrating a significant effect in reduction of frequency of attacks and their duration, that acupuncture has a very low side effect profile (Hesse et al, 1994; Loh et al, 1984).

The British Acupuncture Council has a Research digest where they examined some recent studies on headache and migraine, as well as an evidence based factsheet (links are below).

Acupuncture has had a good profile for both migraine and tension headaches since the Cochrane review of 2009, which was updated in 2016 (Linde et al), including 22 trials (n=4985), finding evidence to suggest that adding acupuncture to symptomatic treatment of attacks reduces the frequency of headaches.  The researchers expressed the need for further long term trials in this area.

The current NICE headache guidelines (2012; 1.3.9) state the following: “Prophylactic treatment: Consider a course of up to 10 sessions of acupuncture over 5 to 8 weeks for the prophylactic treatment of chronic tension‑type headache.”

A systematic review on migraine without aura (Xu et al, 2018) examined 14 RCTs (n=1155), drawing the conclusion that acupuncture is safe, more beneficial that sham control in addressing symptoms, although they were reserved in the strength of this finding by the quality of some of the evidence available, meaning further studies were warranted.

Ambrosie et el, (2012) looked at cost effectiveness of acupuncture use in this field, using the NHS measure of cost per quality adjusted life year (QALY) gain from treatment usage, finding acupuncture to be cost effective by this measure.

A systematic review protocol was put forward recently (Zhang et al, 2020) for auricular (ear protocol) acupuncture in migraine, so it will be of interest to see the outcome when this is published.

Mechanisms of action:

Acupuncture studies have shown it can: provide pain relief by stimulating nerves in body tissues and leading to endorphin release (natural painkilling substances), as well as downregulating the brain and nervous system’s reaction to stress and pain (Zhao 2008; Zijlstra et al, 2003; Pomeranz, 1987).

Acupuncture stimulates the body to create its own natural painkilling substances, such as Beta Endorphins (β-Endorphin). In studies acupuncture has been shown to stimulate the production of natural painkillers called opioid-like peptides (OLPs), including β-Endorphin: For example, this was shown in an RCT in 90 patients with a range of painful disorders (Petti et al, 1998). The same study showed acupuncture also and enhanced the activity of immune cells (lymphocytes, natural killer cells and monocytes) that help fight infections and diseases (Petti et al, 1998).

Zijlstra et al (2003) reviewed the effects and mechanisms of acupuncture in treating various inflammatory diseases and conditions. They proposed the mechanisms of action:

  • Acupuncture may release neuropeptides from nerve endings that have vasodilative and anti-inflammatory effects through CGRP.
  • Acupuncture may also interact with substance P, which is involved in pain transmission and inflammation.
  • Acupuncture may contribute to analgesia by stimulating the release of β-endorphin, which binds to opioid receptors and inhibits pain signals.
  • Acupuncture may influence the balance between cell-specific pro-inflammatory and anti-inflammatory cytokines such as TNF-α and IL-10.

Acupuncture can activate mast cells at acupoints, which release histamine, serotonin, adenosine, and other mediators that modulate nerve transmission and inflammation (Li et al, 2022)

Acupuncture has been shown in animal models to promote the release of factors that involved in the reduction of inflammation (vascular and immunomodulatory factors – (Kim et al, 2008; Kavoussi and Ross, 2007 [review article]; Zijlstra et al, 2003), and also to affect levels of serotonin (in an animal model), and other peptides in the brain and nervous system and modulate blood flow in the brain and elsewhere in the body, in humans (Zhong and Li, 2007; Shi et al, 2010; Park, 2009).

Electroacupuncture (EA) has been shown in a rat model (Li et al, 2008) to have anti-inflammatory benefits by modulating the hypothalamic-pituitary-adrenal (HPA) axis, (HPA axis regulates the stress response and immune function).  Specifically, Li et al outlined that EA sets off a cascade in the brain (via corticotropin-releasing hormone, and adrenocorticotropic hormone) to produce cortisol, which reduces inflammation and oedema.

Resources:

British Acupuncture Council evidence based factsheet about Migraine including specific research, trials and mechanisms of action for acupuncture in this condition.

British Acupuncture Council evidence based factsheet about Headaches including specific research, trials and mechanisms of action for acupuncture in this condition.

British Acupuncture Council Research Digest – Headache and Migraine (approx halfway down the document)

British Acupuncture Council Review Paper Migraine and Acupuncture: The evidence for effectiveness

BAcC Factsheet on Stress

References:

Ambrósio, E.M.M., Bloor, K. and MacPherson, H., 2012. Costs and consequences of acupuncture as a treatment for chronic pain: a systematic review of economic evaluations conducted alongside randomised controlled trials. Complementary therapies in medicine20(5), pp.364-374.

Birch, S., Lee, M.S., Alraek, T. and Kim, T.H., 2018. Overview of treatment guidelines and clinical practical guidelines that recommend the use of acupuncture: a bibliometric analysis. The Journal of Alternative and Complementary Medicine24(8), pp.752-769.

Hesse J, Movelvang B, Simonsen H. (1994) Acupuncture versus metroplol in migraine prohylaxis: a randomised trial of trigger point activation. J Intern Med 235: 451-6

Kavoussi B, Ross BE. The neuroimmune basis of anti-inflammatory acupuncture. Integr Cancer Ther. 2007 Sep;6(3):251-7.

Kim HW, Uh DK, Yoon SY et al. Low-frequency electroacupuncture suppresses carrageenan-induced paw inflammation in mice via sympathetic post-ganglionic neurons, while high-frequency EA suppression is mediated by the sympathoadrenal medullary axis. Brain Res Bull. 2008 Mar 28;75(5):698-705.

Li, A., Lao, L., Wang, Y., Xin, J., Ren, K., Berman, B.M., Tan, M. and Zhang, R., 2008. Electroacupuncture activates corticotrophin-releasing hormone-containing neurons in the paraventricular nucleus of the hypothalammus to alleviate edema in a rat model of inflammation. BMC Complementary and Alternative Medicine8(1), pp.1-8.

Li, Y., Yu, Y., Liu, Y. and Yao, W., 2022. Mast cells and acupuncture analgesia. Cells11(5), p.860.

Linde, K., Allais, G., Brinkhaus, B., Fei, Y., Mehring, M., Vertosick, E.A., Vickers, A. and White, A.R., 2016. Acupuncture for the prevention of episodic migraine. Cochrane Database of Systematic Reviews, (6).

Loh L, Nathan PW, Schott GD, Zilkha KJ. (1984) Acupuncture versus medical treatment for migraine and muscle tension headaches. J Neurol Neurosurg Psychiatry 47: 333-7

National Institute for Clinical Excellence (2021) Headaches in over 12s: diagnosis and management Clinical guideline [CG150]Published: 19 September 2012 Last updated: 12 May 2021

Petti, F.., Bangrazi, A., Liguori, A., Reale, G. and Ippoliti, F., 1998. Effects of acupuncture on immune response related to opioid-like peptides. Journal of Traditional Chinese Medicine 18(1), pp.55-63.

Pomeranz B. Scientific basis of acupuncture. In: Stux G, Pomeranz B, eds. Acupuncture Textbook and Atlas. Heidelberg: Springer-Verlag; 1987:1-18.

Shi H, Li JH, Ji CF, Shang HY, Qiu EC et al.[Effect of electroacupuncture on cortical spreading depression and plasma CGRP and substance P contents in migraine rats]. Zhen Ci Yan Jiu. 2010 Feb;35(1):17-21.

Tavola T, Gala C, Conte G, Inverizzi G. (1992) Traditional Chinese acupuncture in tension- type headache: a controlled study. Pain 48: 325-9

Xu, J., Zhang, F.Q., Pei, J. and Ji, J., 2018. Acupuncture for migraine without aura: a systematic review and meta-analysis. Journal of integrative medicine16(5), pp.312-321.

Zhang, F., Shen, Y., Fu, H., Zhou, H. and Wang, C., 2020. Auricular acupuncture for migraine: a systematic review protocol. Medicine99(5).

Zhao ZQ.  Neural mechanism underlying acupuncture analgesia. Prog Neurobiol. 2008 Aug;85(4):355-75.

Zhong G.-W. Li W. Effects of acupuncture on 5-hydroxytryptamine1F and inducible nitricoxide synthase gene expression in the brain of migraine rats.  Journal of Clinical Rehabilitative Tissue Engineering Research. 2007;11(29)(pp 5761-5764)

Zijlstra FJ, van den Berg-de Lange I, Huygen FJ, Klein J. Anti-inflammatory actions of acupuncture. Mediators Inflamm. 2003 Apr;12(2):59-69.

Helen
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