氨基酸酶O蛋白调解了Lachnospiraceae和尾瘦质之间的关联
Bingjun Gao1, Zhonghua Zhou1, Junfei Chen1
1Department of Pediatric Surgery, Qilu Hospital of Shandong University, Jinan, Shandong, China.
Frontiers in microbiology
|February 22, 2024
概括
增加肠道Lachnospiraceae通过抑制阿米诺酶O蛋白 (AOPEP) 来增加尾肌瘦质量 (ALM). 这一发现支持肠道微生物群的调制,用于治疗肉症和改善老年人的生活质量.
科学领域:
- 微生物组研究的研究.
- 人类生理学 人类生理学
- 遗传学 遗传学 是一个
背景情况:
- 肠道微生物群的组成越来越多地与各种健康结果有关,包括肌肉质量.
- 尾肌瘦质量 (ALM) 是肌肉健康的关键指标,特别适用于老年人群.
- 氨基酶O蛋白 (AOPEP) 已涉及到生物过程,但其在肌肉质量调节中的作用需要进一步调查.
研究的目的:
- 为了调查Lachnospiraceae和ALM之间的因果关系.
- 确定和量化AOPEP在这种关系中的调解作用.
- 探索基于肠道微生物群和AOPEP的萨尔科佩尼亚的潜在治疗点.
主要方法:
- 利用了大规模的全基因组协会研究 (GWAS) 对肠道微生物群的元分析 (MiBioGen联盟,n=13,266) 和ALM (英国生物银行,n=450,243) 的总结统计数据.
- 进行双向双样本门德尔随机化 (MR) 分析,以评估Lachnospiraceae和ALM之间的因果关系.
- 采用药物向MR和两步MR来评估AOPEP对ALM的因果作用,并量化AOPEP的调解.
主要成果:
- 在基因预测的Lachnospiraceae丰度和ALM (OR=1.031,P=0.002) 之间发现了显著的积极因果关系.
- 没有发现ALM对Lachnospiraceae的显著因果作用 (OR=1.437,P=0.239).
- 发现AOPEP调解了Lachnospiraceae对ALM的影响的34.2%.
结论:
- 升高的Lachnospiraceae直接增强ALM并抑制AOPEP,这表明对肌肉损失的保护机制.
- 这些发现支持调节肠道微生物群的治疗潜力,特别是增加Lachnospiraceae和抑制AOPEP,用于治疗肉症.
- 针对肠道微生物群和AOPEP的联合干预可能提供一种协同方法,以改善老年人的肌肉健康和生活质量.
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