參芪復方對糖尿病大血管病變大鼠胸主動脈差異基因表達的影響
[Abstract]:Objective to explore the possible molecular mechanism of Shenqi compound in prevention and treatment of diabetic macrovascular disease. Methods one hundred and sixty GK rats with spontaneous type 2 diabetes mellitus were fed with high fat diet for 12 Zhou Jianli diabetic macroangiopathy models. They were randomly divided into three groups: model group, western medicine group, Shengao group, Shenzhong group and Shen-low group, with 32 rats in each group. Another 32 Wistar rats were set up as blank group. After model making, the western medicine group was given metformin tablet 0.1 g / (kg d) intragastric perfusion, Shengao, middle and low groups were given Shenqi compound 2.88 1.44 脳 0.72 g / (kg d) respectively. The blank group and the model group were given normal saline for 5 ml/ (kg d), and each group was given intragastric administration for 16 weeks. Fasting blood glucose was detected before administration and at 816 weeks after administration, Masson staining was used to observe the pathological morphology of thoracic aorta at 816 weeks, collagen fiber / vascular wall area (PVCA/LA) was calculated, and differential gene screening was carried out at 16 weeks. Results compared with the blank group, the fasting blood glucose in the model group increased before administration and at 816 weeks, and the PVCA/LA increased significantly at 816 weeks (P0.05 or P0.01). At the 16th week, the fasting blood glucose in the western medicine group and Shengao, middle and low groups was lower than that in the same time model group, and PVCA/LA decreased significantly (P0.05 or P0.01). There were 15 gene differences between model group and blank group, in which the gene related to diabetic vascular disease was Elavl1,Lama4, and Elavl1,Lama4 gene was down-regulated in reference group compared with model group. Conclusion the mechanism of Shenqi compound in prevention and treatment of diabetic macroangiopathy may be related to the down-regulation of Elavl1,Lama4 gene expression in thoracic aorta, thereby inhibiting angiogenesis and reducing the production of collagen fibers.
【作者單位】: 成都中醫(yī)藥大學;
【基金】:國家自然科學基金(81273749) 四川省教育廳基金(14ZB0102)
【分類號】:R285.5
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