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对瘦肉代谢功能障碍相关的脂肪性肝病遗传风险变异的跨祖先发现

Shan-Wei Hsu¹, Min-Rou Lin², Wan-Hsuan Chou^2,3,4

¹Division of Gastroenterology and Hepatology, Department of Internal Medicine, Taipei Medical University Hospital, Taipei, Taiwan.

Cell & bioscience

|October 2, 2025

概括

在台湾汉语中,PNPLA3和SAMM50的遗传变异与瘦肉代谢功能障碍相关的脂肪性肝病 (MASLD) 有关. rs9625962变种影响了BMI类别的MASLD风险,突出了瘦肉MASLD的遗传因素.

科学领域:

遗传学遗传学是一个
肝病学肝病学是一种肝病学.
代谢疾病代谢疾病

背景情况:

瘦身代谢功能障碍相关的脂肪性肝病 (MASLD) 对传统的肥胖与脂肪性肝的关联提出了挑战.
以前的全基因组关联研究 (GWAS) 主要集中在西方肥胖人口中,使用较旧的标准.
在台湾汉族人群中,对瘦肉的MASLD存在有限的遗传研究.

研究的目的:

为了研究台湾汉族中国队伍中瘦肉肌的遗传结构.
为了识别与瘦肉MASLD相关的遗传变异.
探索这些遗传发现的跨种群相关性.

主要方法:

利用台湾生物库的数据,将基因组学与腹部超声波整合起来,以识别瘦肉MASLD病例 (BMI <23).
在1,720个瘦肉MASLD病例和5,331个瘦肉对照中进行了GWAS,对共变量进行了调整.
在我们所有人研究计划队列中复制了显著的变异.

主要成果:

确定了47个全基因组显著变异,主要是PNPLA3和SAMM50.
在PNPLA3中,rs9625962是最重要的独立变异,与MASLD风险增加有关,不论BMI如何.
结果在"我们所有人"队列中成功复制,证明了跨人口相关性.

结论:

在台湾汉语中证实了PNPLA3,SAMM50变种和瘦肉MASLD之间的显著关联.
rs9625962变种表现出性效应,影响不同代谢概况的MASLD.
这些遗传发现强调了遗传因素在瘦肉 MASLD 病变发生过程中的重要性.

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