Sci Rep:膀胱功能和基因表达随年龄变化的研究

2018-02-09 AlexYang MedSci原创

最近,有研究人员调查了在雄性和雌性小鼠中,膀胱的功能和基因表达随年龄变化情况。研究人员利用了成熟的且年龄在12个月和27-30个月大的C57BL/6小鼠。在体外器官浴槽试验中,研究人员评估了频率量、有意识的自由移动膀胱测压和逼尿肌收缩和松弛特性,还通过膀胱的cDNA芯片分析确定了毒蕈硷的、嘌呤的和 β-肾上腺素受体的mRNA表达水平和基因表达变化。研究发现,膀胱测压表明了在两种性别小鼠中,随着年龄

最近,有研究人员调查了在雄性和雌性小鼠中,膀胱的功能和基因表达随年龄变化情况。

研究人员利用了成熟的且年龄在12个月和27-30个月大的C57BL/6小鼠。在体外器官浴槽试验中,研究人员评估了频率量、有意识的自由移动膀胱测压和逼尿肌收缩和松弛特性,还通过膀胱的cDNA芯片分析确定了毒蕈硷的、嘌呤的和 β-肾上腺素受体的mRNA表达水平和基因表达变化。

研究发现,膀胱测压表明了在两种性别小鼠中,随着年龄变化表现出了存储和尿路功能的障碍。年老小鼠的逼尿肌表现出了更弱的收缩反应,尤其是在胆碱能组分中,还表现出了对异丙肾上腺素更弱的松弛响应。这些年龄相关的损伤在雄性小鼠中更加严重。膀胱组织mRNA表达分析表明,年老雄性小鼠中的M3毒蕈碱性受体和年老雌性小鼠的 β2-肾上腺素受体mRNA表达减少。cDNA芯片分析结果表明了"细胞到细胞的信号和交流"是年龄相关基因表达最为常见的特性,虽然存在着大量的性别差异。最后,研究人员指出,年老小鼠表现出了排尿和储存障碍,类似于逼尿肌活动过度且伴随收缩性损伤(DHIC),且在雄性小鼠中更加严重。与衰老相关的基因组变化也许与年龄相关的膀胱功能变化相关。

原始出处:

Jun Kamei, Hiroki Ito, Naoki Aizawa et al. Age-related changes in function and gene expression of the male and female mouse bladder. Sci Rep. 1 Feb 2018.

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    2018-02-10 1ddf0692m34(暂无匿称)

    学习了.涨知识

    0

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    2018-02-10 清风拂面

    谢谢分享学习

    0

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