摘要
Objective To investigate the influence of Zhenqing Recipe(ZQR)and Ligustri Lucidi Fructus(LLF)on diabetic rats and its possible mechanism.Methods The model of type 2 diabetic rats was established by feeding a high-sucrose-high-fat diet and injecting a low dose of Streptozotocin in Wistar rats.The model rats were randomly divided into three groups:diabetic model,ZQR-treated,and LLF-treated groups for 8-weeks treatment.The normal Wistar rats were as a normal control group.Results The level of fasting blood glucose in ZQR and LLF groups was decreased compared with model group(P<0.01,0.05,respectively).Both ZQR and LLF markedly reduced serum triglycerides(P<0.01,0.05,respectively),and increased the insulin sensitivity index(P<0.05).Histopathology revealed that ZQR and LLF reduced pancreatic damage.Immunohistochemistry evaluation showed that the percentage of insulin positive cells in pancreatic island was higher than model group(P<0.01,0.05,respectively).The mRNA and protein expression of SREBP-1c in pancreas were significantly decreased in ZQR and FLL group(P<0.01).Conclusion ZQR has therapeutic effect on type 2 diabetes,it ameliorates the histopathological changes of pancreas,protectsβcells,improves insulin resistance,and attenuates the expression of SREBP-1c.This study also provides the anti-diabetic evidence of FLL even its effects are weaker than ZQR.
Objective To investigate the influence of Zhenqing Recipe(ZQR)and Ligustri Lucidi Fructus(LLF)on diabetic rats and its possible mechanism.Methods The model of type 2 diabetic rats was established by feeding a high-sucrose-high-fat diet and injecting a low dose of Streptozotocin in Wistar rats.The model rats were randomly divided into three groups:diabetic model,ZQR-treated,and LLF-treated groups for 8-weeks treatment.The normal Wistar rats were as a normal control group.Results The level of fasting blood glucose in ZQR and LLF groups was decreased compared with model group(P<0.01,0.05,respectively).Both ZQR and LLF markedly reduced serum triglycerides(P<0.01,0.05,respectively),and increased the insulin sensitivity index(P<0.05).Histopathology revealed that ZQR and LLF reduced pancreatic damage.Immunohistochemistry evaluation showed that the percentage of insulin positive cells in pancreatic island was higher than model group(P<0.01,0.05,respectively).The mRNA and protein expression of SREBP-1c in pancreas were significantly decreased in ZQR and FLL group(P<0.01).Conclusion ZQR has therapeutic effect on type 2 diabetes,it ameliorates the histopathological changes of pancreas,protectsβcells,improves insulin resistance,and attenuates the expression of SREBP-1c.This study also provides the anti-diabetic evidence of FLL even its effects are weaker than ZQR.
作者
WEN Xiu-ying1,XU Wen-guang1,XIONG Ling1,XU Ming-wang1,LIU Hao1,ZHANG Hong1,LUO Qiong2,NIAO Qiu-hong1,LIU Li-fang3 1.Liyuan Hospital of Tongji Medical College,Huazhong University of Science and Technology,Wuhan 430077,China 2.General Hospital of the Yangtze River shipping,Wuhan 430015,China 3.The Central Hospital of Ezhou City,Ezhou 436000,China
基金
National Natural Science Foundation of China(30672730)
Developing Research Program of Science and Technology Bureau of Wuhan(20046001047)
