黑人美国人的心血管健康背后的分子途径的性别差异
Research square
|February 9, 2026
概括
这项研究揭示了黑人男性和患有心血管健康不良 (CVH) 的黑人女性中明显的分子通路. 女性表现出血管重塑,而男性表现出心脏和代谢变化,突出性别特异性疾病进展的差异.
科学领域:
- 基因组学就是基因组学.
- 心血管健康 心血管健康
- 分子生物学分子生物学
背景情况:
- 黑人美国人患心血管疾病 (CVD) 的负担很高,不成比例地影响女性.
- 黑人成年人心血管健康 (CVH) 差异背后的性别特异性分子机制尚不清楚.
- 这项研究调查了与黑人成年人CVH相关的性别特异性转录基因特征.
研究的目的:
- 确定与黑人成年人心血管健康不良 (CVH) 相关的性别特异性基因表达差异.
- 探索这些性别特异性CVH差异背后的分子途径和调节机制.
- 提供对黑人男性和女性心血管疾病潜在差异治疗策略的见解.
主要方法:
- 在373名黑人成年人身上进行了全血RNA测序.
- 用美国心脏协会Life's Simple 7 (LS7) 评分来评估心血管健康 (CVH).
- 进行了差异基因表达 (DGE) 和性别分层功能丰富分析,并推断了上游监管活动.
主要成果:
- 低至中等CVH的女性显示430个与细胞骨和血管重塑通路相关的差异表达基因 (DEGs).
- 低至中等CVH的男性表现出344个与心脏导电和细胞代谢途径相关的DEG.
- 跨性别共享13个DEG,涉及保存的应激反应程序;免疫抑制机制在两性之间有所不同.
结论:
- 在黑人成年人中,明显的性别特异性分子特征是CVH差的基础.
- 雌性激活细胞骨/血管重塑,而雄性激活心脏/代谢通路,表明不同的补偿机制.
- 缺乏CVH的不同免疫抑制机制突显了影响心血管疾病风险和治疗的性别特异性生物轨迹.
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