Breviscapine effects on the expression of proliferating cell nuclear antigen and c-fos in the testis of diabetic rat models / 中国组织工程研究

ABSTRACT

BACKGROUND:Breviscapine has been shown to impact the reproductive capacity in rats with type 2 diabetes mel itus, but few reports concerned its mechanism of action. OBJECTIVE:To study the effects of breviscapine on proliferating cel nuclear antigen and proto-oncogene c-fos expression in testis of type 2 diabetes mel itus rats. METHODS:Total y 36 healthy male rats were randomly divided into control group, model group and breviscapine group with 12 rats in each group. In the model group and breviscapine group, rat models of type 2 diabetes mel itus were established by continuous intraperitoneal injection of streptozotocin. Blood glucose reaching 16.7 mmol/L in rats was considered as the standard of model induction. In the control group, rats were given an equal volume of citrate buffer solution by single intraperitoneal injection. In the breviscapine group, rats were administered breviscapine 10 mg/(kg?d) for 4 consecutive weeks by intraperitoneal injection. Rats in the other two groups were injected with an equal volume of physiological saline at the same time point. RESULTS AND CONCLUSION:After 4 weeks of intervention, serum testosterone testing, immunohistochemistry and PCR results showed that serum testosterone levels, proliferating cel nuclear antigen, c-Fos protein and mRNA expression:control group>breviscapine group>model group (P<0.05);blood glucose concentration:the control group