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Protective effects of Urtica dioica L. on experimental testicular ischaemia reperfusion injury in rats

In this study, it was aimed to examine the effects of Urtica dioica L. (UD) that has antioxidant feature in the experimental testicular I/R model in rats in terms of anti‐apoptotic and antioxidative effects. In our study, 24 male rats were divided into three groups: control group, I/R group and I/R + UD (2 mg kg−1) group. Seminiferous tubule calibre measurement, Johnson score, haematoxylin–eosin staining, proliferative cell nucleus antigen (PCNA) immunohistochemical staining and TUNEL as histopathological have been conducted. The structural deterioration in the testicular on I/R group has reduced after the treatment of UD. Our data indicate a significant reduction in the activity of in situ identification of apoptosis using terminal dUTP nick end labelling (TUNEL), and there was a rise in the expression of proliferating cell nuclear antigen (PCNA) in testis tissues of UD‐treated rats in the I/R group. The I/R + UD group showed a decrease in malondialdehyde levels and an increase in the activities of superoxide dismutase, catalase and glutathione peroxidase in comparison with the I/R group. It could be concluded that protective effects of UD on the I/R testicles are via reduction of histological damage, apoptosis, oxidative stress and lipid peroxidation.