PM2.5,严重的代谢异常肥胖的组成原因:一个in silico,观察和分析研究
Sagrario Lobato1,2,3, A Lourdes Castillo-Granada3,4, Marcos Bucio-Pacheco3,5
1Departamento de Investigación en Salud, Servicios de Salud del Estado de Puebla, 15 South Street 302, Puebla, Mexico.
Heliyon
|April 11, 2024
概括
高脂肪饮食 (HFD) 导致肥胖,而空气污染 (PM2.5) 导致严重的代谢问题而不会增加体重. 这两种因素相互作用,影响脂肪组织中的转录特征,并导致异常肥胖.
科学领域:
- 环境健康 环境健康
- 代谢性疾病 代谢性疾病
- 基因组学就是基因组学.
背景情况:
- 全球肥胖患病率正在上升,越来越多地与空气污染有关,特别是细颗粒物 (PM2.5).
- 了解PM2.5等环境因素与高脂肪饮食 (HFD) 等生活方式选择之间的相互作用,对于解决代谢疾病至关重要.
研究的目的:
- 为了研究PM2.5暴露和HFD在脂肪组织中转录特征之间的机械相互作用.
- 通过生物信息学和因果推理方法,确定PM2.5和代谢异常肥胖之间的关联.
主要方法:
- 使用生物信息分析和罗斯曼因果模型进行的观察性研究.
- 在小鼠脂肪组织中识别和分析新的转录特征.
- 对HFD暴露,PM2.5暴露和对照组之间的代谢和转录资料的比较.
主要成果:
- 两种代谢生物标志物使HFD体重增加了20%;PM2.5暴露没有增加体重,但显示了三种代谢生物标志物.
- 发现了三种新型的转录特征 (FAT-PM2.5-CEJUS,FAT-PM2.5-UP,FAT-PM2.5-DN),显示了HFD和PM2.5.5的类似调节.
- HFD诱导了中度的代谢异常肥胖,而PM2.5导致了严重的代谢异常,而没有肥胖.
结论:
- HFD是肥胖的充分原因,而PM2.5是与肥胖相关的严重代谢异常的组成原因.
- PM2.5和HFD有机械相互作用,影响脂肪细胞中的转录调节.
- 这些相互作用影响肥胖的途径,脂质调动,热生成,血管生成和血管度,导致严重的代谢异常肥胖.
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