Salihu M, Ajayi B O, Adedara I A, Farombi E O
Drug Metabolism and Toxicology Research Laboratories, Department of Biochemistry, College of Medicine, University of Ibadan, Ibadan, Nigeria.
Andrologia. 2017 Dec;49(10). doi: 10.1111/and.12782. Epub 2017 Jan 19.
Previous investigations demonstrated that 6-gingerol-rich fraction (6-GRF) prevented testicular toxicity via inhibition of oxidative stress and endocrine disruption in CBZ-treated rats. The influence of 6-GRF on alterations in histomorphometry and marker enzymes of testicular function in CBZ-treated rats which hitherto has not been reported was investigated in this study. The animals were orally administered either CBZ (50 mg/kg) alone or in combination with 6-GRF (50, 100 and 200 mg/kg) for 14 consecutive days. Histomorphormetric analysis demonstrated that 6-GRF significantly prevented CBZ-mediated increase in the organo-somatic index of the testes and seminiferous tubular diameter as well as the reduction in epithelium height and tubular length of testes in the rats. Similarly, 6-GRF ameliorated CBZ-induced disruption in the epithelium height as well as in the proportion of tubule and interstitium of the epididymis the treated rats. Furthermore, 6-GRF prevented CBZ-mediated increase in testicular acid phosphatase activity and the decrease in testicular alkaline phosphatase, aminotransferases, glucose-6-phosphate dehydrogenase and lactate dehydrogenase activities. Moreover, 6-GRF ameliorated CBZ-induced reduction in the testicular and epididymal sperm count and sperm motility in the treated rats. Conclusively, 6-GRF enhances key functional enzymes involve in spermatogenesis and maintains histo-architecture of testes and epididymis in CBZ-treated rats.
先前的研究表明,富含6-姜辣素的组分(6-GRF)可通过抑制氧化应激和内分泌紊乱来预防卡马西平(CBZ)处理的大鼠的睾丸毒性。本研究调查了6-GRF对CBZ处理的大鼠睾丸组织形态计量学改变和睾丸功能标记酶的影响,此前尚未见相关报道。动物连续14天口服单独的CBZ(50 mg/kg)或与6-GRF(50、100和200 mg/kg)联合给药。组织形态计量学分析表明,6-GRF显著预防了CBZ介导的大鼠睾丸器官-体指数和曲细精管直径的增加,以及睾丸上皮高度和曲管长度的减少。同样,6-GRF改善了CBZ诱导的处理大鼠附睾上皮高度以及小管和间质比例的破坏。此外,6-GRF预防了CBZ介导的睾丸酸性磷酸酶活性增加以及睾丸碱性磷酸酶、氨基转移酶、葡萄糖-6-磷酸脱氢酶和乳酸脱氢酶活性的降低。此外,6-GRF改善了CBZ诱导的处理大鼠睾丸和附睾精子计数及精子活力的降低。总之,6-GRF增强了参与精子发生过程的关键功能酶,并维持了CBZ处理大鼠睾丸和附睾的组织结构。