期刊
MOLECULAR MEDICINE REPORTS
卷 7, 期 1, 页码 47-52出版社
SPANDIDOS PUBL LTD
DOI: 10.3892/mmr.2012.1132
关键词
reactive oxygen species; apocynin; testicular dysfunction
Reactive oxygen species (ROS) are important in the development of diabetic testicular dysfunction. Overproduction of ROS promotes the process of apoptosis, which shows that there is a crosstalk between oxidative stress and apoptosis. Recent research has suggested that NADPH oxidase is the main source of ROS. In this study, we investigated whether the NADPH oxidase inhibitor, apocynin, can improve diabetes-induced testicular dysfunction by suppressing oxidative stress. The streptozocin (STZ)-induced diabetic rats were administered apocynin, and the mRNA and protein expression of Bax, Bcl-2, p47(phox) and p67(phox) was examined by real-time PCR (RT-PCR) and western blot analysis. Production of ROS was measured by thiobarbituric acid reactive substances (TBARS) assay. Terminal-deoxynucleoitidyl transferase mediated nick end-labeling (TUNEL) assay was used to detect apoptosis and ELISA was used to detect total testosterone levels. The mRNA and protein expression of Bcl-2 was significantly reduced, and that of Bax, p47(phox) and p67(phox) was significantly increased in the diabetic rats compared to the control group. Apocynin significantly increased the expression of Bcl-2 and decreased the expression of Bax, p47(phox) and p67(phox) at both the mRNA and protein levels. The production of ROS and apoptotic cells significantly increased in the diabetic group compared to the control group. Apocynin significantly reduced the production of ROS and apoptotic cells and increased the total testosterone level. In conclusion, apocynin is capable of ameliorating testicular dysfunction.
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