大动脉炎的性别差异和慢性严重大动脉吐重塑在慢性严重大动脉吐重塑
Carolina Tiraplegui1, Mattie Garaikoetxea1, Alba Sádaba1
1Cardiovascular Translational Research, Navarrabiomed (Fundación Miguel Servet), Instituto de Investigación Sanitaria de Navarra (IdiSNA), Hospital Universitario de Navarra (HUN), Universidad Pública de Navarra (UPNA), Pamplona, Spain.
American journal of physiology. Heart and circulatory physiology
|January 13, 2025
概括
男性患者在主动脉回 (AR) 中表现出更多的主动脉炎和纤维化. 女性膜细胞对TGF-β表现出明显的反应,这表明对AR的性别特异性治疗点.
科学领域:
- 心血管生物学 心血管生物学
- 疾病中的性别差异.
- 膜心脏疾病 膜心脏疾病
背景情况:
- 大动脉反 (AR) 在男性中更常见,但潜在的基于性别的机制尚不清楚.
- 了解AR病理生理学的性别差异对于向治疗至关重要.
研究的目的:
- 研究性对大动脉 (AV) 炎症和重塑在AR患者的性别的影响.
- 为了识别性别之间的膜间歇细胞 (VIC) 和膜内皮细胞 (VEC) 的细胞差异.
主要方法:
- 使用成像,组织学和分子技术,对144名严重慢性AR患者 (27.5%的女性) 的AV分析.
- 从AR患者中分离出的VIC和VEC的特征,包括对TGF-β的反应.
- 对AV组织和分离细胞的蛋白质和基因表达分析.
主要成果:
- 与女性相比,男性患者的AVS较厚,炎症和原沉积较高.
- 男性VIC和VEC分泌更多的炎症标记物;男性VIC产生更多的I型原蛋白.
- TGF-β不同影响细胞反应,增强男性VIC的炎症和女性VIC的蛋白质糖.
结论:
- 性别显著影响AR的发病,男性呈现出更大的AV炎症和纤维化.
- 膜间歇细胞 (VICs) 是性别特异性AR差异的关键参与者.
- 结果表明性别特异性分子通路和AR的潜在治疗点.
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