PubMed · 8489979
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J A Wesolowski, M J Lema. Phantom limb pain.. https://pubmed.ncbi.nlm.nih.gov/8489979/
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Acupuncture is an ancient Chinese method to treat diseases and relieve pain. We have conducted a series of studies to examine the mechanisms of this ancient method for pain relief. This article reviews some of our major findings. Our studies showed that acupuncture produces analgesic effect and that electroacupuncture (EA) is more effective than manual acupuncture. Furthermore, electrical stimulation via skin patch electrodes is as effective as EA. The induction and recovering profiles of acupuncture analgesia suggest the involvement of humoral factors. This notion was supported by cross-perfusion experiments in which acupuncture-induced analgesic effect was transferred from the donor rabbit to the recipient rabbit when the cerebrospinal fluid (CSF) was transferred. The prevention of EA-induced analgesia by naloxone and by antiserum against endorphins suggests that endorphins are involved. More recent work demonstrated the release of endorphins into CSF following EA. In addition, low frequency (2 Hz) and high frequency (100 Hz) of EA selectively induces the release of enkephalins and dynorphins in both experimental animals and humans. Clinical studies suggesting its effectiveness for the treatment of various types of pain, depression, anxiety, spinally induced muscle spasm, stroke, gastrointestinal disorders, and drug addiction were also discussed.
OBJECTIVE: Acupuncture is frequently advocated as an effective treatment of dental pain. The question whether or not it is effective for this indication remains controversial. The aim of this systematic review therefore was to assess the effectiveness of acupuncture in dental pain. DATA SOURCES: Four electronic databases were searched: Medline, Embase, CISCOM, and the Cochrane Library. Only controlled trials were included in this review. DATA EXTRACTION: Information was extracted from included studies and entered on standard forms independently by both authors. Methodological quality was assessed using the Jadad score. MAIN RESULTS: 16 such studies were located. The majority of these trials imply that acupuncture is effective in dental analgesia. However, important questions remain unanswered. CONCLUSION: It is concluded that acupuncture can alleviate dental pain and that future investigations should define the optimal acupuncture technique and its relative efficacy compared with conventional methods of analgesia.
OBJECTIVE: To measure the serum levels of interleukin (IL)-8, prostaglandin (PG) F2alpha, and beta-endorphin in parturients with acupuncture treatment and in controls to clarify the effect of acupuncture and duration of labor on the serum levels of substances active in cervical ripening and dilatation. METHODS: A matched pair study was performed involving 80 women with and without prenatal acupuncture treatment, matched for age and parity. Serum levels of IL-8, PGF2alpha, and beta-endorphin were measured in serum samples taken after delivery by use of enzyme-linked immunosorbent assay, enzyme immunoassay, and immunoradiometric assay, respectively. RESULTS: The mean difference in total duration of labor between matched pairs with and without acupuncture was -136.5 minutes (95% confidence interval [CI] 191.1 minutes, -81.9 minutes; paired t test, P < .001). The mean difference of the duration of the first and second stages of labor between matched pairs with and without acupuncture was -138.8 minutes (95% CI 188.6, -89.0 minutes; paired t test, P < .001) and 2.3 minutes (95% CI 15.5, 20.1 minutes; paired t test, P = .8), respectively. The geometric means of ratios of IL-8, PGF2alpha, and beta-endorphin between matched pairs in women with and without acupuncture showed no statistically significant differences. Serum levels of IL-8, PGF2alpha, and beta-endorphin were not significantly correlated with the duration of the first and second stages of labor. CONCLUSION: Prenatal acupuncture treatment significantly reduces the duration of labor and may be a valuable tool in prenatal preparation. Serum levels of IL-8, PGF2alpha, and beta-endorphin are not significantly influenced by acupuncture and are therefore not likely to mediate acupuncture-related effects during labor.