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多组学分析揭示了非人类灵长类动物与年龄相关的微生物和代谢物变化
Xiang Chen1,2, Yiyun Liu1,2, Juncai Pu1,2
1Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China.
Microorganisms
|October 28, 2023
概括
老龄化改变了肠道微生物和新陈代谢. 这项研究将特定的肠道细菌和代谢物与 rhesus 的衰老联系起来,揭示了脂质,氨基酸和免疫分子的变化.
科学领域:
- 微生物学 微生物学
- 代谢学 代谢学 代谢学
- 衰老研究研究 衰老研究
背景情况:
- 衰老是一个复杂的过程,涉及全身生理衰退.
- 肠道微生物群和宿主新陈代谢的变化是衰老的标志.
- 之前的研究在阐明因混杂因素而导致的与衰老相关的分子变化方面面临着挑战.
研究的目的:
- 系统地分析肠道微生物组组成和功能的与年龄相关的变化.
- 为了研究不同生命阶段血清和便代谢的变化.
- 为了确定与 rhesus 子的衰老相关的特定分子签名.
主要方法:
- 16S核糖体RNA (rRNA) 基因测序用于肠道微生物组分析.
- 血清和便样本的非向代谢分析.
- 在36只雄性 rhesus 子 (3-26岁) 中,年龄,微生物属和代谢物水平之间的相关性分析.
主要成果:
- 在41个肠道类别中发现了与年龄相关的显著相关性.
- 86种便和49种血清代谢物显示出与年龄相关的显著变化,包括脂质,有机氧化合物和有机酸.
- 衰老与氨基酸减少,脂质增加 (和脂肪酸,类固醇) 和免疫调节分子,抗氧化剂和神经递质的改变有关.
结论:
- 这项研究提供了全面的证据,证明了肠道微生物组成和宿主新陈代谢的年龄相关变化.
- 特定的微生物系与在衰老过程中观察到的代谢变化相关.
- 需要进一步的研究来验证这些发现并探索它们的含义.
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