基因组特征,安全性评估和益生菌潜力的人类衍生新型乳球菌的IOBRA974646IOBRA974646
Dongxiong Hu1, Jiao Yan1,2, Yuxin Li1
1Institute of Biomedical Research, Yunnan University, Kunming 650500, China.
Microorganisms
|February 27, 2026
概括
一种新的益生菌菌株,Enterococcus lactis IOBRA9746,有效地减少了小鼠肝脏脂肪的积累. 这种胆盐酸酶活性益生菌通过向肠肝轴,为代谢障碍提供了潜在的治疗方法.
科学领域:
- 微生物学 微生物学
- 胃肠病学 胃肠病学
- 代谢障碍 代谢障碍 代谢障碍
背景情况:
- 具有胆汁盐化酶 (BSH) 活性的益生菌菌株显示出对代谢障碍治疗的潜力.
- 准肠肝轴是管理代谢疾病的关键策略.
研究的目的:
- 以其BSH活性和治疗潜力来表征一种新型的人类衍生的Enterococcus菌株.
- 为了研究这种益生菌菌株对高胆固醇饮食诱导的代谢障碍小鼠模型的影响.
主要方法:
- 用于安全性评估和体外BSH活性测试的基因组分析.
- 在高胆固醇饮食中的C57BL/6J小鼠口服Enterococcus菌株八周.
- 组织病理学分析 (H&E,油红O染色) 和全面的器官检查.
主要成果:
- 菌株表现出强烈的BSH活性和出色的体内安全性.
- 没有观察到血清胆固醇的显著降低,但肝脂滴积累明显减少.
- 益生菌的BSH活性与胆酸代谢的调节有关,抑制肝脂沉积.
结论:
- 乳腺肠球菌 (Enterococcus lactis) IOBRA9746是一种安全的BSH活性益生菌,具有降低肝脂积累的特定作用.
- 这种菌株代表了与不良饮食有关的代谢疾病的潜在肝脏向干预.
- 治疗效益独立于全身胆固醇降低,突出了通过肠肝轴的新机制.
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