Effect of Acupuncture on Insulin Receptor Substrate and Glucose Transporter 4 in Skeletal Muscle of Experimental Rats with Insulin Resistance
10.13359/j.cnki.gzxbtcm.2015.04.027
- VernacularTitle:针刺对胰岛素抵抗模型大鼠骨骼肌胰岛素受体底物和葡萄糖转运蛋白4的影响
- Author:
Liang ZHANG
;
Wei YI
- Publication Type:Journal Article
- Keywords:
Insulin resistance/acup-moxibustion therapy;
Gene expression regulation;
Disease models,animal;
Rats
- From:
Journal of Guangzhou University of Traditional Chinese Medicine
2015;(4):699-704
- CountryChina
- Language:Chinese
-
Abstract:
Objective To observe the curative effect of acupuncture on insulin receptor substrate 1 ( IRS-1) , IRS-2 and glucose transporter 4 (GLUT4) in skeletal muscle of experimental rats with insulin resistance (IR) . Methods Thirty-two rats were randomly divided into normal group, model group, acupuncture normal group and acupuncture model group. The fasting plasma glucose ( FPG) level was detected with glucose oxidase method, fasting insulin and C-peptide ( C-P) were examined with enzyme linked immunosorbent assay ( ELISA) , insulin sensitivity index ( ISI) was calculated, and IRS-1 mRNA, IRS-2 mRNA and GLUT4 mRNA of skeletal muscle were observed by real-time PCR-based fluorescent assay in each group. Results Compared to the normal group, the FPG, FINS, C-P levels were increased dramatically (P<0.01), ISI, IRS-1 mRNA, IRS-2 mRNA and GLUT4 mRNA of the model group declined remarkably ( P<0.01). Compared to the model group, the FPG, FINS, C-P levels declined evidently ( P<0.05 or P<0.01) , and ISI, IRS-1 mRNA, IRS-2 mRNA and GLUT4 mRNA of the acupuncture model group were increased dramatically ( P<0.01). Conclusion The curative mechanism of acupuncture for insulin resistance is probably related to the increase of IRS-1 mRNA, IRS-2 mRNA and GLUT4 mRNA expression in skeletal muscle which contributes to the improvement of PI3K signal pathway.
