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A comparative study of electroacupuncture at Zhongliao (BL33) and other acupoints for overactive bladder

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《医学前沿（英文）》 2017年第11卷第1期页码 129-136 doi: 10.1007/s11684-016-0491-6

摘要：

Electroacupuncture (EA) at Zhongliao (BL33) can improve the symptoms of overactive bladder (OAB), such as urinary frequency, urgency, and incontinence. However, its performance compared with other acupoints remains unclear. This study investigated the effects of EA at BL33 with deep needling on rats with OAB by detecting urodynamics in eight groups: no intervention group, D-BL33 group (deep needling at BL33), S-BL33 group (shallow needling at BL33), non-acupoint group (needling at the non-acupoint next to BL33), Weizhong (BL40) group, Sanyinjiao (SP6) group, Tongtian (BL7) group, and Hegu (LI4) group. Results revealed that EA at BL33 with deep needling, BL40, and SP6 prolonged the intercontraction interval (ICI) of rats with OAB (P=0.001, P=0.005, P=0.046, respectively, post-treatment vs. post-modeling). Furthermore, the change in ICI from post-modeling in the D-BL33 group was significantly greater than those of the no intervention and other EA groups (all P<0.01). Significantly shortened vesical micturition time (VMT) and elevated maximum detrusor pressure (MDP) were also observed in the D-BL33 group (P=0.017 and P=0.024, respectively, post-treatment vs. post-modeling). However, no statistically significant differences in the changes of VMT and MDP from post-modeling were observed between D-BL33 and the other EA groups. In conclusion, EA at BL33 with deep needling may inhibit acetic-acid-induced OAB more effectively.

关键词： overactive bladder electroacupuncture acupuncture points

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Distinct roles of ASIC3 and TRPV1 receptors in electroacupuncture-induced segmental and systemic analgesia

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《医学前沿（英文）》 2016年第10卷第4期页码 465-472 doi: 10.1007/s11684-016-0482-7

摘要：

Previous studies have demonstrated the effects of different afferent fibers on electroacupuncture (EA)-induced analgesia. However, contributions of functional receptors expressed on afferent fibers to the EA analgesia remain unclear. This study investigates the roles of acid-sensing ion channel 3 (ASIC3) and transient receptor potential vanilloid 1 (TRPV1) receptors in EA-induced segmental and systemic analgesia. Effects of EA at acupoint ST36 with different intensities on the C-fiber reflex and mechanical and thermal pain thresholds were measured among the ASIC3⁻^/⁻, TRPV1⁻^/⁻, and C57BL/6 mice. Compared with C57BL/6 mice, the ipsilateral inhibition of EA with 0.8 C-fiber threshold (0.8Tc) intensity on C-fiber reflex was markedly reduced in ASIC3⁻^/⁻ mice, whereas the bilateral inhibition of 1.0 and 2.0Tc EA was significantly decreased in TRPV1⁻^/⁻ mice. The segmental increase in pain thresholds induced by 0.3 mA EA was significantly reduced in ASIC3⁻^/⁻ mice, whereas the systemic enhancement of 1.0 mA EA was markedly decreased in TRPV1⁻^/⁻ mice. Thus, segmental analgesia of EA with lower intensity is partially mediated by ASIC3 receptor on Aβ-fiber, whereas systemic analgesia induced by EA with higher intensity is more likely induced by TRPV1 receptor on Ad- and C-fibers.

关键词： electroacupuncture analgesia ASIC3 TRPV1 C-fiber reflex

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Jisheng Han, Cailian Cui, Liuzhen Wu

《医学前沿（英文）》 2011年第5卷第2期页码 141-150 doi: 10.1007/s11684-011-0136-8

摘要： Drug addiction is a chronic brain disorder characterized by withdrawal symptoms that occur during drug abstinence and a high tendency of relapse. Compared with the currently available pharmacological interventions, acupuncture therapy has the potential to help drug addicts stay away from drugs without major adverse side effects. It has taken decades of research to optimize the parameters of electrical acupoint stimulation for detoxification and for relapse prevention, as well as to establish a safe and easy procedure by which drug addicts can use it on themselves. The discovery that acupuncture can trigger the release of opioid substances from the brain in the 1970s provided the inspiration. Following this, basic research on animals made it possible to understand the mechanisms of action and establish the procedure for treating drug addictions. This article reviews the past, present, and foreseeable future regarding the use of acupuncture-related technique for the treatment of opiate addiction from the perspective of translational medicine.

关键词： morphine dependence withdrawal addiction dynorphins acupuncture electroacupuncture transcutaneous electrical acupoint stimulation (TEAS) enkephalins endorphins