电针听宫和翳风穴对豚鼠听皮层糖代谢及IGF-1表达的影响

Effects of Electroacupuncture at Tinggong and Yifeng on Glucose Metabolism and IGF-1 Expression in the Auditory Cortex of Guinea Pigs

涂厚义;陈茜;刘淑云;殷泽登;

1:泸州医学院附属医院耳鼻咽喉头颈外科

2:自贡市第四人民医院耳鼻咽喉科

摘要
目的探讨电针听宫穴和翳风穴对豚鼠听皮层葡萄糖代谢和胰岛素样生长因子-1(insulin like growth factor-1,IGF-1)表达的影响。方法将成年杂色豚鼠18只随机分为3组,电针耳穴组7只,同时电针双侧听宫和翳风穴,持续15分钟,每日1次,共7天;电针非穴位组6只,电针听宫穴靠眼侧方5mm处和翳风穴正下方5mm处,时间同电针耳穴组;对照组5只不作任何处理,常规饲养。各组完成电针后进行PET/CT扫描,获得CT、PET及两者融合图像,观察豚鼠听皮层摄取显像剂18F-脱氧葡萄糖的情况,以听皮层和小脑最大标准摄入值(standard uptake value,SUV)的比值为观察指标;采用实时荧光定量PCR技术检测豚鼠听皮层IGF-1mRNA表达。结果对照组、电针耳穴组、电针非耳穴组听皮层SUV最大值与小脑SUV最大值的比值分别为0.75±0.06、0.84±0.05和0.71±0.06,电针耳穴组高于对照组和电针非耳穴组,(分别为P=0.042,P=0.009);对照组、电针耳穴组、电针非耳穴组听皮层局部IGF-1mRNA相对表达量分别为1.34±0.24、2.03±0.36、0.92±0.23,电针耳穴组高于对照组和电针非耳穴组(分别为P=0.002,P<0.001)。结论电针针刺听宫和翳风穴可增加豚鼠听皮层局部IGF-1的表达,可能通过提高葡萄糖代谢水平促进豚鼠听皮层的功能。
关键词
电针;听皮层;糖代谢;胰岛素样生长因子-1
基金项目(Foundation):
四川省卫生厅(130356);; 四川省教育厅(10zb119);; 泸州市科技局(2012-s-37);; 泸医附院人才基金[(2013)60]联合资助
作者
涂厚义;陈茜;刘淑云;殷泽登;
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