度他雄胺对大鼠附睾Claudin1和β-catenin表达的影响
发布时间:2019-08-07 13:58
【摘要】:目的:通过度他雄胺对大鼠附睾上皮连接关键蛋白Claudin1和β-catenin表达影响的研究,探讨度他雄胺抑制生育的可能分子机制,为男性不育治疗和男性避孕提供附睾靶点。方法:16只SD雄性大鼠(3月龄,250~300 g),设度他雄胺40 mg/kg实验组和阴性对照组,每组8只,灌胃给药,1次/d,连续2周。给药结束后计算机辅助精子分析雄鼠精子活力及形态,计算交配雌鼠受孕率,ELISA法测定大鼠血清睾酮(T)和双氢睾酮(DHT)浓度,透射电镜分析附睾细胞紧密连接变化,RT-PCR分析实验组和对照组附睾上皮连接蛋白Claudin1和β-catenin基因表达变化;免疫组化和免疫印迹分析其蛋白表达变化。结果:度他雄胺可以显著抑制大鼠血清DHT浓度、精子活力和生育力,超微结构显示实验组附睾上皮细胞紧密连接出现空隙,附睾腔液体积增多。RT-PCR、免疫组化和免疫印迹显示度他雄胺可以显著下调Claudin1和β-catenin的表达。结论:度他雄胺可以显著抑制雄性大鼠生育,这可能与其降低大鼠血清DHT水平,进而抑制附睾上皮连接关键基因Claudin1和β-catenin表达和破坏附睾上皮紧密连接有关。
[Abstract]:Aim: to explore the possible molecular mechanism of dosteride inhibiting fertility by studying the effect of dosteride on the expression of key proteins Claudin1 and 尾-catenin in epididymal epithelial junction of rats, so as to provide epididymal targets for the treatment of male sterility and male birth control. Methods: sixteen male SD rats (3 months old, 250 鈮,
本文编号:2524001
[Abstract]:Aim: to explore the possible molecular mechanism of dosteride inhibiting fertility by studying the effect of dosteride on the expression of key proteins Claudin1 and 尾-catenin in epididymal epithelial junction of rats, so as to provide epididymal targets for the treatment of male sterility and male birth control. Methods: sixteen male SD rats (3 months old, 250 鈮,
本文编号:2524001
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