Abstract
Reproductive dysfunction is one of the diabetes complications. Resveratrol, a polyphenol compound, shows antidiabetic and antioxidant effects. The aim of the present study was to investigate the protective effects of resveratrol on sperm parameters and chromatin quality in experimentally induced type 2 diabetes by streptozotocin and nicotinamide. Forty male adult Wistar rats were grouped into normal control, diabetic control and resveratrol-treated diabetic groups (1, 5 and 10mg/kg orally treated for 30days). Type 2 diabetes was induced using a single dose of streptozotocin and nicotinamide by intraperitoneal injection. Then, the different parameters and chromatin condensation of the epididymal extracted spermatozoon were studied using aniline blue (AB), acridine orange (AO) and toluidine blue (TB) staining. The sperm parameters including count, motility and viability had significant reduction in diabetic rats (p<0.05). Resveratrol increased count, motility and viable spermatozoa relative to the diabetic group (p<0.05). The mean percentage of AB, AO and TB staining positive spermatozoa was increased in diabetic groups compared to control (p<0.001) and decreased after treatment with 1 and 5mg/kg resveratrol (p<0.001). The results of AO and TB staining showed that resveratrol did not have any beneficial effect on chromatin condensation and denatured DNA at the dose of 10mg/kg.
Published Version
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