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
ABSTRACT
The in-vitro fertilization and embryo transfer technique has been widely applied in human insemination. The rate of successful insemination is gradual y rising, and the in-vitro fertilization directly determine the insemination outcome. OBJECTIVE:To evaluate the difference between the two common using insemination methods, microdrop and open, in in-vitro fertilization and embryo development. METHODS:A randomized study was conducted to compare microdrop and open insemination methods among non-male factor patients undergoing in-vitro fertilization and embryo transfer. A total of 1 175 cases were enrol ed in the research. There were 573 cases in the microdrop group, and 602 cases in open insemination group. The fertilization rate and embryo development in the two groups were compared. RESULTS AND CONCLUSION:The fertilization failure rate [total fertilization failure rate+low fertilization rate (0.05). The open insemination method is a simple insemination method with a lower fertilization failure rate. As the fertilization is a highly complicated process involving many extrinsic and intrinsic factors, further study is needed to confirm the effects of the two insemination methods on in-vitro fertilization outcome.