Objective: To investigate the effect of Rehmannia glutinosa water extraction (RGL) on adipose metabolic disorder and gene expression of resistin in type 2 diabetes mellitus rats.
Method: The wistar rats model of 2-DM were induced by high calorie feeding and small dose injection of STZ. Rats were randomly divided into diabetic model group, diabetic model treated with RGL (2.4 g x kg(-1) x d(-1)), RGL (1.2 g x kg(-1) x d(-1)), RGL (0. 6 g x kg(-1) x d(-1)) and normal control group. The levels of FPG, FINS, TG, HDL, LDL, CH and IR were measured, and the mRNA expression of resistin was determined by RT-PCR, the protein expression measured by SDS-PAGD at the end of 8 weeks.
Result: The gene expression of resistin in RGL group were lower than that of diabetic model (P < 0.01). The levels of FPG, FINS, TG, LDL, CH, IR in RGL group were lower than that of diabetic model (P < 0.05), and HDL were higher (P < 0.05). CONCLUDE: RGL can improve insulin resistance in the experimental 2-DM rats, can effectively ameliorate adipose metabolic disturbance and decline IR and FINS by increasing the gene expression of resistin.
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