在海湾战争疾病的小鼠遗传模型上进行表观遗传学分析
Khyobeni Mozhui1,2, James P O'Callaghan3, David G Ashbrook2
1Department of Preventive Medicine, College of Medicine, University of Tennessee Health Science Center, Memphis, TN, United States.
Frontiers in toxicology
|June 30, 2023
概括
海湾战争疾病 (GWI) 影响了老兵的持续症状. 这项研究探讨了GWI的基因组基础,在暴露于神经毒剂和压力的小鼠中发现了特定的基因甲基化差异,这可能解释了长期影响.
科学领域:
- 神经科学是一个神经科学.
- 基因组学就是基因组学.
- 毒理学 毒理学 毒理学
背景情况:
- 海湾战争疾病 (GWI) 影响了25-35%的退伍军人从1990-1991年冲突,持续的神经和行为症状.
- 尽管怀疑与神经毒剂和化学物质暴露有关,但GWI的根本原因仍然基本不明.
研究的目的:
- 调查海湾战争疾病 (GWI) 持续症状的潜在基因组基础.
- 探索与GWI相关的结合性神经毒剂和压力源暴露的长期表观遗传影响.
主要方法:
- 进行了对两种同系鼠标菌株 (C57BL/6J和DBA/2J) 的全基因组表观遗传学分析.
- 小鼠被暴露在皮质和二醇基酸盐 (DFP) 中,这是一种神经毒剂替代物.
- 基因组范围的DNA甲基化分析是在暴露后六周对中部前额叶皮层组织进行的.
主要成果:
- 67个差异甲基化基因被确定.
- 包括Ttll7,Akr1c14,Slc44a4和Rusc2在内的关键基因表现出改变的甲基化.
- 这些基因与GWI中观察到的各种症状有关.
结论:
- 这项研究提供了对导致慢性GWI影响的遗传差异的原则证明.
- 特定基因的表观遗传变化可能解释了退伍军人的GWI症状的持续性.
- 这些发现可能会为海湾战争退伍军人的长期健康后果提供见解.
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