L.酸性/L.酸性/L.酸性/L.酸性 约翰逊比率影响老鼠缓慢过渡便秘
Yiqi Liao1,2, Yanfang Wang3, Weirui Huang1,2
1School of Pharmacy, Fujian Medical University, Fuzhou, 350122, China.
Scientific reports
|September 10, 2024
概括
乳杆菌酸性菌与乳杆菌约翰尼 (A/J) 的比率与缓慢过渡性便秘 (STC) 相对应. 调节这种比率可能为STC提供新的治疗策略.
科学领域:
- 胃肠病学 胃肠病学
- 微生物组研究 微生物组研究
- 代谢学 代谢学 代谢学
背景情况:
- 缓慢过渡性便秘 (STC) 是由结肠运动率降低来定义的.
- 肠道微生物群在STC病理生理学中的作用尚未完全理解.
- 特定的细菌比率,比如Lactobacillus acidophilus对Lactobacillus johnsonii (A/J),可能会影响肠道功能.
研究的目的:
- 在大鼠模型中研究A/J比率与STC发展之间的相关性.
- 探索抗生素和洛佩拉胺对A/J比率和STC的影响.
- 确定与STC相关的潜在微生物和代谢生物标志物.
主要方法:
- 使用了四个小鼠组:对照组 (CON),洛佩拉胺诱导的STC (LOP),抗生素治疗 (ABX) 和抗生素加洛佩拉胺 (ABX + LOP).
- 使用16S rRNA基因测序分析便样本以确定微生物组成.
- 通过液态染色体质谱法 (LC-MS) 检查血清代谢物.
主要成果:
- 洛普集团的A/J比率增加,与STC发展相关.
- 抗生素治疗 (ABX和ABX+LOP组) 降低了A/J比率,而ABX+LOP组没有出现STC症状.
- 在所有组中观察到血清代谢物的显著变化,包括瓜尼迪诺酸盐,甘氨酸,L-谷氨酸和其他物质.
结论:
- 在这种大鼠模型中,A/J比率与STC发展有很强的相关性.
- 抗生素诱导的A/J比率调节可以预防STC症状.
- 研究结果表明,肠道微生物组,特别是A/J比率,在STC中起着至关重要的作用,并为新疗法提供了潜在的点.
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