Sci Rep:ApoE/LDL受体双敲除小鼠中,低睾丸素水平与睾丸毛细血管稀疏相关

2018-04-15 AlexYang MedSci原创

睾丸作为一个动脉粥样硬化变化的位点到目前为止受到很少人的关注。最近,有研究人员利用载脂蛋白E(ApoE)/低密度脂蛋白(LDL)受体双缺陷小鼠模型(KO)来对20、40、60和87周大时的动脉粥样硬化情况进行调查,研究人员调查了是否睾丸间质细胞或者毛细血管网络与减少的血清睾丸素水平相关。研究人员发现,在KO小鼠中,总的睾丸素水平减少,然而肾上腺特异性皮质脂酮增加,但不包括普遍性的甾类激素产生缺陷。

睾丸作为一个动脉粥样硬化变化的位点到目前为止受到很少人的关注。最近,有研究人员利用载脂蛋白E(ApoE)/低密度脂蛋白(LDL)受体双缺陷小鼠模型(KO)来对20、40、60和87周大时的动脉粥样硬化情况进行调查,研究人员调查了是否睾丸间质细胞或者毛细血管网络与减少的血清睾丸素水平相关。

研究人员发现,在KO小鼠中,总的睾丸素水平减少,然而肾上腺特异性皮质脂酮增加,但不包括普遍性的甾类激素产生缺陷。除了微CT调查具有更大的血管外,立体测量学阐释了毛细血管长度、体积和表面积的减少,表明了毛细血管稀疏是睾丸素水平降低的一个因素。间质细胞的的立体分析表明,间质细胞的数目和大小均显著减少。这些睾丸的结构性变化发生在炎症性背景的小鼠中,并通过qPCR来阐释。另外,KO小鼠窝仔数的减少表明了睾丸素缺陷能够导致不育症。

最后,研究人员指出,他们的数据表明了减少的睾丸素水平也许能够通过毛细血管网络稀疏和减少的间质细胞数目和大小来进行解释。因此,他们的研究强调了由高胆固醇血症和动脉粥样硬化引起的毛细血管损伤从而诱导形成的雄性不育需要特殊的治疗。

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    2018-04-16 zhangph
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    2018-04-16 zhwj
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    2018-04-16 xiongke016
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    2018-04-15 戒馋,懒,贪

    谢谢分享学习了

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