The aim of this study was to investigate the protective effect of naringenin on oxidative stress, on proinflammatory cytokines like TGF-beta1, IL-1beta and on programmed cell death in the testicular damage resulting from streptozotocin (STZ) induced diabetes in rats. Diabetes was induced by a single intraperitoneal injection of STZ (50 mg/kg), and the rats were treated with naringenin (5 mg/kg and 10 mg/kg) administered once a day orally for 10 weeks, starting 3 days after the STZ injection. At the end of the study, all animals were sacrificed. Testis tissue and blood samples were collected for the assessment of sperm parameters, and for biochemical and histopathological analysis. Naringenin treatment significantly decreased the levels of elevated tissue TBARS (thio-barbituric acid) and increased the superoxide dismutase (SOD), catalase and glutathione peroxidase (GPx) enzyme activities in the testis tissues. The naringenin-treated rats in the diabetic group showed an improved histological appearance, sperm parameters, and serum testosterone levels, along with a decrement of terminal dUTP nick end-labeling (TUNEL) detected program cell death and a reduced over expression of TGF-beta1, IL-1beta in Sertoli cells and Leydig cells. These results suggest that naringenin is a food supplement potentially beneficial in reducing testicular damage in diabetic rats by decreasing the oxidative stress related to programmed cell death.
- MeSH
- antagonisté estrogenu aplikace a dávkování farmakologie MeSH
- apoptóza účinky léků MeSH
- experimentální diabetes mellitus * farmakoterapie krev MeSH
- flavanony * aplikace a dávkování farmakologie MeSH
- imunohistochemie MeSH
- interleukin-1beta MeSH
- motilita spermií účinky léků MeSH
- oxidační stres účinky léků MeSH
- počet spermií statistika a číselné údaje MeSH
- potkani Wistar MeSH
- rastrovací tunelová mikroskopie MeSH
- statistika jako téma MeSH
- studie případů a kontrol MeSH
- testis * enzymologie imunologie patologie MeSH
- testosteron krev MeSH
- transformující růstový faktor beta1 MeSH
- zárodečné buňky účinky léků MeSH
- zvířata MeSH
- Check Tag
- mužské pohlaví MeSH
- zvířata MeSH
