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在2型糖尿病中,PNPLA3基因变异调节了饮食诱导的肝脂含量改善

Kalliopi Pafili¹, Oana-Patricia Zaharia¹, Klaus Strassburger²

¹Department of Endocrinology and Diabetology, Medical Faculty and University Hospital Düsseldorf, Heinrich-Heine-University Düsseldorf, Moorenstr. 5, 40225 Düsseldorf, Germany; Institute for Clinical Diabetology, German Diabetes Center, Leibniz Center for Diabetes Research at Heinrich-Heine-University Düsseldorf, Auf'm Hennekamp 65, 40225 Düsseldorf, Germany; German Center for Diabetes Research (DZD), Ingolstädter Landstr. 1, 85764 Neuherberg, Germany.

Clinical nutrition (Edinburgh, Scotland)

|March 16, 2025

概括

PNPLA3 G-基因基因对2型糖尿病患者对饮食诱导的体重减轻的反应有影响. 遗传变异会影响代谢结果,影响脂肪性肝病的管理.

科学领域:

遗传学是一个遗传学.
代谢性疾病代谢性疾病
营养科学营养科学

背景情况:

减肥等生活方式干预措施对于管理2型糖尿病和脂肪性肝病至关重要.
对基于饮食的减肥的个人反应各不相同,需要对调节因素进行研究.
在含有蛋白3 (PNPLA3) 基因的patatin-like 酸酶域中的rs738409单核酸多态性 (SNP) 与代谢功能障碍相关的脂肪性肝病有关.

研究的目的:

调查PNPLA3 rs738409 SNP的G基因基因是否调节2型糖尿病患者饮食诱导的减肥的代谢效应.
为了比较两个不同的低热量饮食对肝脂含量和与PNPLA3基因型相关的胰岛素敏感性的影响.

主要方法:

随机对照试验涉及2型糖尿病的参与者,他们被分配到两个为期8周的低热量饮食之一.
饮食在谷物纤维,咖啡和红肉含量方面各不相同.
通过使用高胰岛素性-高血糖性和使用磁共振成像/光谱学评估全身胰岛素敏感性和肝脂含量.

主要成果:

尽管体重减轻类似,但肝脂含量在PNPLA3非载体下降显著更大,与高纤维,咖啡,没有红肉饮食的G基因基因载体相比.
携带者和非携带者都显示了胰岛素敏感性的改善,在两种饮食组之间没有显著差异.
不携带PNPLA3的患者表现出炎症标志物的差异性变化 (介质素-18和介质素-1受体对抗剂),这取决于饮食的消耗.

结论:

在2型糖尿病患者中,PNPLA3基因的G等位基因改变了肥胖性肝病对饮食干预的反应,即使体重减轻相当.
这些发现突显了遗传倾向在对代谢健康的个性化营养策略中的作用.
需要进一步的研究来阐明基因型特异性对饮食变化的反应背后的机制.

关键词:

卡路里限制卡路里限制糖尿病是一种糖尿病.胰岛素耐药性胰岛素耐药性是一种大量营养素宏观营养素与代谢功能障碍相关的脂肪性肝病.肥胖问题肥胖问题

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