2型糖尿病的DNA甲基化风险评分与妊娠期糖尿病有关
Teresa M Linares-Pineda1,2,3, Nicolas Fragoso-Bargas4,5,6, María José Picón1
1Department of Endocrinology and Nutrition, Instituto de Investigación Biomédica Málaga (IBIMA)- Plataforma Bionand, University Hospital Virgen de la Victoria, Málaga, Spain.
Cardiovascular diabetology
|February 13, 2024
概括
与2型糖尿病 (T2DM) 相关的DNA甲基化模式也与妊娠期糖尿病 (GDM) 有关. 这表明,共享的表观遗传机制对这两种疾病都有所贡献,进步了我们对怀孕期间糖尿病的理解.
科学领域:
- 表观遗传学 在表观遗传学中,表观遗传学是指表观遗传学.
- 内分泌学 在内分泌学.
- 生殖医学 生殖医学
背景情况:
- 孕期糖尿病 (GDM) 和2型糖尿病 (T2DM) 具有共同的风险因素,但共同的表观遗传机制仍未被探索.
- 调查共享的DNA甲基化标记可以阐明GDM和T2DM病变的共同途径.
研究的目的:
- 要确定为T2DM开发的DNA甲基化风险评分 (MRS) 是否与GDM相关.
- 探索跨不同祖先和GDM诊断标准的共同表观遗传因素.
- 确定特定的DNA甲基化位点,可能将T2DM与GDM联系起来.
主要方法:
- 利用两个独立的怀孕队列 (EPIPREG和EPIDG) 与外周血液白细胞DNA甲基化数据.
- 使用CpG部位从已发表的全表观基因组关联研究 (EWAS) 构建了一个基于T2DM的MRS.
- 采用混合模型后勤回归来评估T2DM MRS和GDM状态之间的关联,并根据相关的共变量进行调整.
主要成果:
- 在未调整和调整的模型中,T2DM MRS与GDM显著相关 (OR 1.4;P=0.00014).
- 一项元分析确定了与GDM相关的六个特定的CpG位点.
- 一些已识别的CpG位点及其甲基化量定位点 (mQTL) 显示与T2DM和GDM有关.
结论:
- 这项研究提供了第一个证据,即与T2DM相关的DNA甲基化标记也与GDM有关.
- 研究结果表明,共同的表观遗传机制是GDM和T2DM发展的基础.
- 这些见解可能会为未来的GDM预防和管理策略提供信息.
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