Acupuncture & Moxibustion
Background
Pain associated with cancer is one of the greatest causes of reduced quality of life in patients. Acupuncture is one of the treatments used to address this issue, with the great advantage of having little or no side effects, especially when compared with pharmacological pain-killers.
Objective
The aim of this systematic review and meta-analysis was to evaluate the current evidence regarding the efficacy of acupuncture for cancer pain.
Search strategy
Six electronic databases (PubMed, EBSCO, Cochrane Library, Scielo, b-On and Scopus) were searched for relevant articles about pain relief in cancer patients from their beginning until 2022 using MeSH terms such as “acupuncture,” “electroacupuncture,” “ear acupuncture,” “acupuncture analgesia,” ‘‘oncological pain,” and “cancer pain.”
Inclusion criteria
Studies included were randomized controlled trials (RCTs) where acupuncture was compared with no treatment, placebo acupuncture or usual care.
Data extraction and analysis
Three independent reviewers participated in data extraction and evaluation of risk of bias, and a meta-analysis was conducted. The primary outcome was pain intensity, measured with the visual analog scale, numeric rating scale, or brief pain inventory. Secondary outcomes also assessed were quality of life, functionality, xerostomia, pain interference, and analgesic consumption. Results were expressed as standardized mean difference (SMD) with 95% confidence interval (CI).
Results
Sixteen RCTs with a total of 1124 participants were included in the meta-analysis, with the majority of the studies presenting a low or unclear risk of bias. Acupuncture was more effective in reducing pain than no treatment (SMD = –0.90, 95% CI [–1.68, –0.12]), sham acupuncture (SMD = –1.10, 95% CI [–1.59, –0.61]) or usual care (SMD = –1.16, 95% CI [–1.38, –0.93]).
Conclusion
The results of this study suggest that acupuncture may be an effective intervention to reduce pain associated with cancer. Despite some limitations due to the low quality and small sample size of some included studies, as well as the different types and stages of cancer, acupuncture might provide an effective and safe treatment to reduce cancer pain.
Design, setting, participants and interventions
This study was conducted using a randomized, controlled, three-arm, parallel-group and multi-center design. Patients diagnosed with AP were randomly and equally assigned to EA1, EA2 or control groups. All participants received conventional standard-of-care therapy for AP. Local EA alone was administered in EA1, and local plus distal EA was given in EA2. Local EA included two abdominal acupoints, while distal EA included twelve peripheral acupoints. EA groups underwent one session of EA daily for 4 days (days 1–4), or until pain was resolved or discharged.
Main outcome measures
The primary outcome measure was the change in the visual analogue scale (VAS; 0–100) pain score between baseline and day 5.
Abnormalities in the gut microbiota and intestinal short-chain fatty acid (SCFA) levels are implicated in the pathogenesis of functional constipation (FC). Electro-acupuncture (EA) has been shown to improve constipation-related symptoms and rebalance the gut microbiota. However, it is currently unknown whether the gut microbiota is a key mechanistic target for EA or how EA promotes gut motility by regulating the gut microbiota and SCFAs. Therefore, we assessed the effects of EA in FC mice and pseudo-germfree (PGF) mice to address these questions.
Methods
Forty female Kunming mice were randomly separated into a normal control group (n = 8), an FC group (n = 8), an FC + EA group (n = 8), a PGF group (n = 8) and a PGF + EA group (n = 8). The FC group and FC + EA group were treated with diphenoxylate to establish the FC model; the PGF group and PGF + EA group were given an antibiotic cocktail to initiate the PGF model. After maintaining the model for 14 d, mice in the FC + EA and PGF + EA groups received EA stimulation at the ST25 and ST37 acupoints, once a day, 5 times per week, for 2 weeks. Fecal parameters and intestinal transit rate were calculated to assess the efficacy of EA on constipation and gastrointestinal motility. Colonic contents were used to quantify gut microbial diversity using 16S rRNA sequencing, and measure SCFA concentrations using gas chromatography-mass spectrometry.
EA significantly shortened the first black stool defecation time (P < 0.05) and increased the intestinal transit rate (P < 0.01), and fecal pellet number (P < 0.05), wet weight (P < 0.05) and water content (P < 0.01) over 8 h, compared with the FC group, showing that EA promoted gut motility and alleviated constipation. However, EA treatment did not reverse slow-transit colonic motility in PGF mice (P > 0.05), demonstrating that the gut microbiota may play a mechanistic role in the EA treatment of constipation. In addition, EA treatment restored the Firmicutes to Bacteroidetes ratio and significantly increased butyric acid generation in FC mice (P < 0.05), most likely due to the upregulation of Staphylococcaceae microorganisms (P < 0.01).
EA-mediated resolution of constipation occurs through rebalancing the gut microbiota and promoting butyric acid generation.
Low-back pain (LBP) in nurses is a major health concern that affects their quality of life and ability to work, with consequences for their economic status.
This study evaluates the effect of low-level laser acupuncture combined with auricular acupressure (LAA) on pain intensity, pain interference and quality of life in nurses with LBP.
This randomized controlled trial recruited a convenience sample of hospital-based nurses from one teaching hospital in Taiwan, China. Participants were randomly assigned to the LAA group (n = 38) receiving low-level laser acupuncture and auricular acupressure for 4 weeks, and the control group (n = 38) receiving only sham laser acupuncture treatment without laser energy output.
Data were collected for the primary pain outcome using the Short Form of the Brief Pain Inventory, while the secondary outcome, quality of life, was evaluated using the Roland-Morris Disability Questionnaire. Both primary and secondary outcomes were scored before the intervention, and after 2-week and 4-week intervention. The rate of LBP recurrence was evaluated at the 4th week and 8th week after the end of intervention.
After controlling for prior pain, the result of linear mixed model analysis showed trends in significant between-group differences in the level of current pain occurring in week 4 (P < 0.001), worst pain in week 2 (P < 0.001) and week 4 (P < 0.001), least pain in week 2 (P = 0.032) and week 4 (P < 0.001), pain interference in week 2 (P = 0.009) and week 4 (P < 0.001), and in the life dysfunction in week 2 (P < 0.001) and week 4 (P < 0.001). Recurrence rates of LBP at the 4th and 8th weeks after the end of intervention were 0% and 36.89% in the LAA group, and 69.44% and 36.11% in the control group.
This study shows that 4-week LAA intervention reduced pain intensity and pain interference, and improved quality of life for hospital-based nurses with LBP. These effects were maintained continuously for at least 4 weeks after the intervention. The nonpharmacological intervention, LAA, may be another efficacious, feasible, noninvasive, analgesic intervention for LBP.
Trial registration
This study is registered at Clinicaltrials.gov (registration number NCT04423445).
The study explores the effects of electroacupuncture (EA) at the governing vessel (GV) on proteomic changes in the hippocampus of rats with cognitive impairment.
Healthy male rats were randomly divided into 3 groups: sham, model and EA. Cognitive impairment was induced by left middle cerebral artery occlusion in the model and EA groups. Rats in the EA group were treated with EA at Shenting (GV24) and Baihui (GV20) for 7 d. Neurological deficit was scored using the Longa scale, the learning and memory ability was detected using the Morris water maze (MWM) test, and the proteomic profiling in the hippocampus was analyzed using protein-labeling technology based on the isobaric tag for relative and absolute quantitation (iTRAQ). The Western blot (WB) analysis was used to detect the proteins and validate the results of iTRAQ.
Compared with the model group, the neurological deficit score was significantly reduced, and the escape latency in the MWM test was significantly shortened, while the number of platform crossings increased in the EA group. A total of 2872 proteins were identified by iTRAQ. Differentially expressed proteins (DEPs) were identified between different groups: 92 proteins were upregulated and 103 were downregulated in the model group compared with the sham group, while 142 proteins were upregulated and 126 were downregulated in the EA group compared with the model group. Most of the DEPs were involved in oxidative phosphorylation, glycolipid metabolism and synaptic transmission. Furthermore, we also verified 4 DEPs using WB technology. Although the WB results were not exactly the same as the iTRAQ results, the expression trends of the DEPs were consistent. The upregulation of heat-shock protein β1 (Hspb1) was the highest in the EA group compared to the model group.
EA can effect proteomic changes in the hippocampus of rats with cognitive impairment. Hspb1 may be involved in the molecular mechanism by which acupuncture improves cognitive impairment.
Filiform needle acupuncture (FNA), the most classical and widely applied acupuncture method based on traditional Chinese medicine theory, has shown a promising effect in the treatment of allergic rhinitis (AR).
We aim to comprehensively evaluate the efficacy, safety, cost-effectiveness, and patient preference of FNA in the treatment of AR by comparing FNA with sham acupuncture, no treatment, and conventional medication.
Eight electronic databases were systematically searched from inception to October 14, 2021. Additional studies were acquired from clinical trial registration platforms and reference lists.
RCTs were included if they compared FNA with either sham acupuncture, no treatment, or conventional medications for AR.
Two researchers extracted data independently of each other using a predesigned data acquisition form, and results were cross-checked after completion. The primary outcome was symptom score (Total Nasal Symptom Score or Visual Analog Scale), and the secondary outcomes were the AR control questionnaire, quality of life (QoL) score (Different versions of Rhinoconjunctivitis Quality of Life Questionnaires), medication score (use of rescue medication), mental health score, total IgE, adverse event rate, clinical economic indicators, and patient satisfaction score. Standardized mean difference (SMD) or mean difference (MD) with 95% confidence intervals (CIs) was used to calculate the effect size for continuous data, while risk ratio with 95% Cis was used for dichotomous data.
Thirty studies were included in this review. Compared with sham acupuncture, FNA significantly reduced the symptom score (SMD: –0.29 [–0.43, –0.15]), AR’s impact on QoL (SMD: –0.23 [–0.37, –0.08]) and medication score (SMD: –0.3 [–0.49, –0.11]). Compared with no treatment, FNA dramatically reduced the symptom score (SMD: –0.8 [–1.2, –0.39]) and AR’s impact on QoL (SMD: –0.82 [–1.13, –0.52]). There were no increased rates of adverse event with FNA compared to sham acupuncture and no treatment. FNA increased patient satisfaction and may be cost-effective. Most pieces of evidence from the above two comparisons were of high confidence. Moreover, FNA significantly outperformed conventional medication in reducing the symptom score (SMD: –0.48 [–0.85, –0.1]) and displayed a lower rate of adverse events, but the quality of evidence was very low.
FNA is an effective and safe intervention for AR and can help with symptom relief, QoL improvement, reducing medication usage, and increasing patient satisfaction. Further studies are needed to verify its cost-effectiveness and superiority over conventional medication and the best therapeutic strategies.
Low-level LA gradually reduced older patients’ postoperative pain intensity and morphine consumption within the first 72 h after their TKA for osteoarthritis. Low-level LA may have benefits as an adjuvant pain management technique for clinical care.
ClinicalTrials.gov registration number NCT03995446.
Acupuncture has been widely used to relieve migraine-related symptoms. However, the findings of previous systematic reviews (SRs) and meta-analyses (MAs) are still not completely consistent. Their quality is also unknown, so a comprehensive study is needed.
Functional constipation (FC) is one of the most prevalent functional gastrointestinal disorders. Dissatisfaction with medications prescribed to treat FC may lead patients to seek alternative treatments. Numerous systematic reviews (SRs) examining the use of acupuncture to treat FC have reported inconsistent results, and the quality of these studies has not been fully evaluated.
In this overview, we evaluated and summarized clinical evidence on the effectiveness and safety of acupuncture for treating FC and evaluated the quality and bias of the SRs we reviewed.
The search strategy was structured by medical subject headings and search terms such as “acupuncture therapy” and “functional constipation.” Electronic searches were conducted in eight databases from their inception to September 2020.
SRs that investigated the effectiveness and safety of acupuncture for managing FC were included.
Two authors independently extracted information and appraised the methodology, reporting accuracy, quality of evidence, and risk of bias using the following critical appraisal tools: (1) A Measurement Tool to Assess Systematic Reviews 2 (AMSTAR 2); (2) Risk of Bias in Systematic Reviews (ROBIS); (3) Preferred Reporting Items for Systematic Reviews and Meta-analyses for Acupuncture (PRISMA-A); and (4) the Grading of Recommendations, Assessment, Development and Evaluations (GRADE). A κ index was used to score the level of agreement between the 2 reviewers.
Thirteen SRs that examined the clinical utility of acupuncture for treating FC were identified. Using the AMSTAR 2 tool, we rated 92.3% (12/13) of the SRs as “critically low” confidence and one study as “low” confidence. Using the ROBIS criteria, 38.5% (5/13) of the SRs were considered to have “low risk” of bias. Based on PRISMA-A, 76.9% (10/13) of the SRs had over 70% compliance with reporting standards. The inter-rater agreement was good for AMSTAR 2, ROBIS, and PRISMA-A. Using the GRADE tool, we classified 22.5% (9/40) of the measured outcomes as “moderate” quality, 57.5% (23/40) as “low” quality, and 20.0% (8/40) as “very low” quality. The inter-rater agreement was moderate when using GRADE. Descriptive analyses indicated that acupuncture was more efficacious than sham acupuncture for improving weekly complete spontaneous bowel movements (CSBMs) and for raising the Bristol Stool Form Scale (BSFS) score. Acupuncture appeared to be superior to anti-constipation drugs for improving weekly spontaneous bowel movements, the total effective rate, and the Patient Assessment of Constipation Quality of Life score. Although ten SRs mentioned the occurrence of adverse events, serious adverse events were not associated with acupuncture treatment.
Acupuncture may be more efficacious than sham acupuncture for improving CSBMs and BSFS scores and may be superior to anti-constipation drugs for improving bowel movement frequency, as well as quality of life. Limitations to current studies and inconsistent evidence suggest a need for more rigorous and methodologically sound SRs to draw definitive conclusions.
Systematic review registration
PROSPERO CRD42020189173.
To study the effect of the electroacupuncture and Buyang Huanwu Decoction (BYHWD) on the regeneration of the rat's injured sciatic nerve.
Rat's sciatic nerve injury model was made by operation. The rats were treated with electroacupuncture or BYHWD and their nerve electro-physiological indices and histological changes tested by HRP were observed.
It was demonstrated that the recovery ratios of nerve conduction velocity and muscle evoked action potential of the group treated with electroacupuncture and the group treated with BYHWD were higher than those of the group treated with western medicine or the group without treatment. The differences were significant. The labeling cells in anterior horn of spinal marrow and spinal ganglion of the group treated with electroacupuncture and the group treated with BYHWD were more abundant than those of the group treated with western medicine or the group without treatment. The differences were significant. The effect of electroacupuncture was better than that of the BYHWD.
It suggests that both electroacupuncture therapy and BYHWD can promote the recovery of the function in early stage of injured nerve, and they are effective methods for promoting the regeneration of injured peripheral nerve.
To probe into the application of fuzzy cluster in analysis of therapeutic effects of electroacupuncture at different parameters on adjuvant-induced arthritis (AA) in rats. Methods
One hundred Wistar rats were randomly divided into ten groups： normal control group, untreated group and eight electro-acupuncture groups at different parameters. There were ten rats in each group. AA rats were treated by electro-acupuncture at different frequencies (2 Hz or 100 Hz), waveforms (successive wave or intermittent wave) and current intensities (0.1 mA or 0.2 mA). Firstly, the anti-inflammatory and analgesic effects of electro-acupuncture at different parameters were compared with orthogonal experiment, and then with the application of fuzzy mathematics, the data of joint swelling, pain threshold and the contents of (3-endorphin ((3-EP) and interleukin-ip (IL-1(3) after the treatment in all groups were standardized by the method of data range normalization. Programming and solution were done by MATLAB. The methods of fuzzy similar matrix and the transitive closure were used in similarity evaluation of therapeutic effects of electroacupuncture at different parameters. Results
Based on index determination and variance analysis, both the normal control group and untreated group were clustered to one category as A equaled to 0. 72. Electro-acupuncture at 100 Hz, successive wave, 0. 2 mA, electro-acupuncture at 100 Hz, intermittent wave, 0. 1 mA and electro-acupuncture at 100 Hz, intermittent wave, 0. 2 mA were clustered to one category and had similar good anti-inflammatory and analgesic effects. The therapeutic effects of the remaining electro-acupuncture types were similar. Conclusion
Fuzzy cluster analysis provides a better method for evaluating the overall therapeutic effects of electro-acupuncture with multiple factors.
Methods/design
Discussion
Trial Registration:
Background: With the understanding of the immune inflammatory response in the pathogenesis of dry eyes, and the limitations of widely used artificial tears and numerous pharmaceuticals and methods to promote tear secretion, clinicians pay more attention to the therapies that can promote tear secretion actively. Acupuncture treatment for dry eye may meet this requirement.
Objective: To observe the clinical efficacy of acupuncture treatment on dry eye and the effects on duration, and to examine the mechanisms of acupuncture in treating patients with dye eyes. DESIGN, SETTING, PARTICIPANTS AND INTERVENTIONS: The study was performed at Department of Ophthalmology, Shuguang Hospital, Shanghai University of Traditional Chinese Medicine from August 2010 to May 2011. Patients with the primary diagnosis of dry eye were enrolled. Sixty-five patients were randomly divided into treatment group and control group, and were given 3 weeks of acupuncture treatment or artificial tear therapy respectively. MAIN OUTCOME MEASURES: The enzyme-linked immunosorbent assay was used to detect the lactoferrin content of the tears before and after treatment. In order to evaluate the efficacy of the treatment methods, the Schirmer Ⅰ test and break-up time were also measured.
Results: Compared with before treatment, the lactoferrin content in the tears of patients in the treatment group increased, break-up time was prolonged and the result of the Schirmer Ⅰ test showed improvement after 3 weeks of treatment. The indexes mentioned above did not change in the control group after treatment. There were no significant differences in tear lactoferrin and Schirmer Ⅰ test between one week after treatment and after 3-week treatment in the treatment group, but break-up time was significantly shortened. The result of Schirmer I test in the treatment group was significantly higher than that in the control group one week after treatment.
Conclusion: Acupuncture can increase tear lactoferrin level, extend tear film break-up time and promote tear secretion in patients with dry eye in a time-limited trial. With the end of treatment, the effect decreased.
In this paper, issues of acupuncture using target points and depth of needling were discussed based on the theory of traditional Chinese medicine acupoints and combined with anatomical and neurological research of Western medicine. The theoretical evidence of acupuncture on nerve foramen and ganglion and the reasons for being nonstandard operating on acupoints were analyzed. This study summarized the method of using acupuncture at Xiaguan (ST7), Cuanzhu (BL2), Sibai (ST2) and Jiachengjiang acupoints to align with the spheno-palatine ganglion and additional nerve foramen (supraorbital, infraorbital and mental foramina) to treat primary trigeminal neuralgia. This study adhered to the Standards for Reporting Interventions in Clinical Trials of Acupuncture and helped in development of study standardization for acupuncture processes. The authors hoped that should help in significantly diminishing risk and improving therapeutic efficacy in clinic.
Objective: To assess and grade facial nerve dysfunction according to the extent of facial paralysis in the clinical course of acupuncture treatment for Bell’s palsy, and to observe the interrelationship between the grade, the efficacy and the period of treatment, as well as the effect on prognosis.
Methods: The authors employed the House-Brackmann scale, a commonly used evaluation scale for facial paralysis motor function, and set standards for eye fissure and lips. According to the improved scale, the authors assessed and graded the degree of facial paralysis in terms of facial nerve dysfunction both before and after treatment. The grade was divided into five levels: mild, moderate, moderately severe, severe dysfunction and complete paralysis. The authors gave acupuncture treatment according to the state of the disease without artificially setting the treatment period. The observation was focused on the efficacy and the efficacy was evaluated throughout the entire treatment process.
Results: Fifty-three cases out of 68 patients with Bell’s palsy were cured and the overall rate of efficacy was 97%. Statistically significant differences (P<0.01) were perceived among the efficacy of five levels of facial nerve dysfunction. Efficacy was correlated with the damage level of the disease (correlation coefficient r=0.423, P<0.01). The course of treatment also extended with the severity of facial nerve dysfunction (P<0.01).
Conclusion: Differences exist in patients with Bell’s palsy in terms of severity of facial nerve dysfunction. Efficacy is reduced in correlation with an increase in facial nerve dysfunction, and the period of treatment varies in need of different levels of facial nerve dysfunction. It is highly necessary to assess and grade patients before observation and treatment in clinical study, and choose corresponding treatment according to severity of damage of the disease.
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