慢性压力在小鼠中诱导性别特异性脏线粒体功能障碍
Noelle I Frambes1, Alexia M Crockett1, Amelia M Churillo2,3
1Department of Pharmacology, Physiology & Neuroscience, University of South Carolina School of Medicine, Columbia, SC 29205, USA.
Function (Oxford, England)
|September 19, 2025
概括
慢性心理压力会增加血压,尤其是女性. 这种压力会损害女性的线粒体功能,原因是孕激素水平较低,这种机制在男性中没有观察到.
科学领域:
- 身体生理学 身体生理学
- 内分泌学 在内分泌学.
- 腎臟病學 (nephrology) 是一種醫學專業.
背景情况:
- 慢性心理压力与脏疾病和高血压有关.
- 连接压力,功能和高血压的机制仍然不清楚.
研究的目的:
- 为了调查慢性压力是否会损害脏线粒体功能,导致血压升高.
- 探索压力诱导的高血压的性别依赖机制.
主要方法:
- 成年雄性和雌性小鼠接受了为期28天的慢性不可预测压力 (CUS) 协议或作为对照.
- 评估血压,脏线粒体功能,脏孕激素水平和尿路白蛋白分泌.
主要成果:
- 在男性和女性中,CUS增加了血压,女性的效果更大.
- 雌性小鼠在孕期期间脏线粒体功能受损,与低脏孕激素和高血压相关.
- 在暴露于CUS的女性中,尿液中的白蛋白分泌量增加,但男性没有.
结论:
- 慢性不可预测的压力直接增加血压,以一种取决于性别的方式.
- 低性孕会导致脏线粒体功能受损和雌性小鼠血压升高.
- 这些发现突出了女性因压力引起的高血压的新机制.
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