对严重肥胖的人类胆酸代谢的综合分析
Ömrüm Aydin1,2, Annika Wahlström3, Patrick A de Jonge1,2
1Department of Internal and (Experimental) Vascular Medicine, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, the Netherlands.
Hepatology (Baltimore, Md.)
|July 16, 2024
概括
门口胆汁酸 (BAs) 在肥胖个体中显示出显著的多样性,大多数的门口胆汁酸比外围胆汁酸度更高. 改变肠道微生物群的组成,特别是减少的细菌体,与独特的门户BA配置文件有关.
科学领域:
- 代谢调节 代谢调节 代谢调节
- 肠 - 肝轴 肠 - 肝轴
- 微生物组 - 胆酸相互作用
背景情况:
- 胆汁酸 (BAs) 是重要的代谢调节剂.
- 乙酸经历肠肝循环,影响肝脏新陈代谢.
- 有限的数据存在于人类门户的BA组成.
研究的目的:
- 调查人类的门户BA组成.
- 将门户BA配置文件与外围和便BA动态联系起来.
- 检查与肠道微生物组组成的关联.
主要方法:
- 来自BARIA队列的门性血,外围性血和便样本的分析.
- 使用质谱学量化BA和C4的量化.
- 肠道微生物群的基因组学分析.
主要成果:
- 在门户BA组合中观察到相当大的多样性.
- 大多数 (26/33) 的门口BA度高于外围BA度 (9倍).
- 8个人显示较低的门 BA,与较高的未结合/二次 BA,与减少的便 Bacteroides 相关.
结论:
- 在肥胖症中,Portal BA的成分有显著的变化,影响了代谢洞察力.
- 微生物的新陈代谢驱动了外围的BA多样性.
- 一部分人 (24%) 呈现出意想不到的低门BA水平,需要进一步调查.
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