不同频率电针刺激对实验性肥胖大鼠减肥效应的影响

目的:探讨不同频率电针刺激对减肥的效应差异。方法:将实验大鼠随机分为对照组、模型组、针刺1组(30Hz)、针刺2组(100Hz),穴取"后三里""三阴交""关元""中脘"。比较治疗前后各组大鼠体重指数(Lees指数)、左肾周脂肪重量和脂肪细胞体积、血脂、胰岛素、瘦素的变化。结果:两针刺组与模型组比较,其体重指数、血脂、左肾周脂肪湿重及脂肪细胞体积均有明显改变(P<0.01),且针刺2组比针刺1组变化程度更高(P<0.05);两针刺组与模型组比较,血清瘦素水平降低(P<0.01),血清胰岛素水平也趋于降低(P<0.05),但针刺1组与针刺2组比较,差异无显著意义(P>0.05)。结论:不同频率电针刺激对肥胖大鼠的脂代谢有不同影响,100Hz电针刺激治疗肥胖症较之30Hz效果更好。

Effects of electroacupuncture of different frequencies on slimming effect in the rat of experimental obesity

Objective To compare the slimming effects of electroacupuncture of different frequencies. Methods The rats were randomly divided into a control group, a model group, an acupuncture group I (30 Hz), and an acupuncture group II (100 Hz). Acupoints selected were "Housanli" (ST 36), "Sanyinjiao" (SP 6), "Guanyuan" (CV 4), "Zhongwan" (CV 12). The changes of Lee's index, fat weight around the left kidney and the volume of the fat cell, blood lipids, insulin and leptin before and after treatment were compared. Results Compared with the model group, Lee's index, fat weight around the left kidney and the volume of the fat cell, blood lipids significantly changed in the two acupuncture groups (P<0.01), with the acupuncture group II being more change than that of the acupuncture group I (P<0.05); and compared with the model group, the leptin level decreased in the two acupuncture group (P<0.01) and the serum insulin level decreased (P<0.05), with no significant difference between the acupuncture group I and the acupuncture group II (P>0.05). Conclusion Electroacupuncture of different frequencies has different effects on fat metabolism in fat rats, and electroacupuncture of 100 Hz has a better effect than 30 Hz on obesity.