结肠上皮质透性的性别依赖性改变:与刺激性肠综合征的相关性
Muriel Larauche1,2, Swapna Mahurkar-Joshi1, Mandy Biraud1,2
1Vatche and Tamar Manoukian Division of Digestive Diseases, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, United States.
Frontiers in physiology
|March 10, 2025
概括
刺激性肠综合征 (IBS) 患者显示结肠上皮功能发生变化,但这些变化与性别无关. 然而,无论IBS状态如何,肠道屏障功能存在性别差异.
科学领域:
- 胃肠病学 胃肠病学
- 皮质生物学 皮质生物学
- 疾病中的性别差异.
背景情况:
- 增加的肠透性与刺激性肠综合征 (IBS) 的病理生理学有关.
- 结肠上皮功能障碍与IBS中的内脏疼痛有关,但基于性别的差异尚未得到研究.
研究的目的:
- 在IBS患者中研究结肠上皮功能性别特异性变化.
- 为了确定IBS相关的上皮功能障碍是否在男性和女性之间有所不同.
主要方法:
- 使用Ussing腔室评估IBS患者和健康对照 (HCs) 的ex vivo西格结肠活检.
- 测量了短路电流 (Isc),体电阻 (TEER) 和FITC-dextran 4 kDa (FD4) 透度.
- 通过RNA测序分析紧结蛋白mRNA表达.
主要成果:
- 作为一个群体,IBS患者的TEER比HC患者低,但这并不取决于性别.
- 在TEER和FD4透性的性别差异观察到独立于IBS诊断.
- 腹部疼痛的严重程度与表皮屏障功能标志物没有相关性.
结论:
- IBS与变化的结肠上皮功能有关,不论性别.
- 在IBS患者和健康对照中,肠道屏障功能存在显著的基于性别的差异.
- 需要进一步的研究来探索IBS病理生理学中的性别特异性相互作用.
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