Protective Effects of Scutellarin on Testicular Vessels of Rat with Type II Diabetes Mellitus-Induced Testicular Damages / 中山大学学报(医学科学版)

ABSTRACT

@#【Objective】To evaluate the protective effect of Scutellarin（SCU）on type II diabetes-induced disorder of testes and show the mechanism of Scutellarin′s action.【Method】We divided 24 Wistar rats equally into 3 groups：control group，diabetes group and diabetes + SCU group. We used streptozotocin and high-fat diet to establish type Ⅱ diabetic rat model on Wistar rat. Haematoxylin and eosin staining were used to evaluate the testicular morphologic changes. Immunohistochemical staining was used to measure the expression level of vascular endothelial growth factor（VEGF）in testes. Oxidative stress in testes and epididymis was tested by fluorescence spectrophotometer and enzyme linked immunosorbent assay（ELISA）. The blood flow rate in testicular vessels was measured by Doppler. 【Results】 Our results showed that hyperglycemia induced morphologic impairments in testes of rats, higher concentrations of Malondialdehyde（MDA） and ROS in testes and epididymis, lower testicular blood flow rate, while administration of Scutellarin could significantly inhibit these damages（DCF：12.93 vs. 7.63 mg/min ；MDA：2.37 vs. 1.48 mg/min ；testicular blood flow rate：110.0 vs. 210.2 mm/s；P < 0.05）.【Conclusion】Our data suggest that SCU has the potential to reverse male reproductive disorder in diabetes by reducing the concentrations of ROS and improving. microcirculatory disturbances.