主体饮食营养素塑造GH32-介导的微生物对益生菌果的反应:一项随机试验
Hideaki Takahashi1,2,3, Tadashi Fujii2,3,4, Chikako Yamada1
1Graduate School of Nutritional Sciences, Nagoya University of Arts and Sciences, Nisshin 470-0196, Japan.
Foods (Basel, Switzerland)
|December 11, 2025
概括
像果实素这样的益生菌可以选择性地促进有益的肠道细菌,但反应各不相同. 这项研究确定了响应者的特定细菌生长模式和饮食联系,为个性化肠道健康策略铺平了道路.
科学领域:
- 微生物学 微生物学
- 营养科学 营养科学
- 人类肠道微生物组研究研究
背景情况:
- 益生菌,包括果实素,调节肠道微生物群.
- 对益生菌的个人反应表现出显著的变化.
- 了解物种级别的反应对于个性化营养至关重要.
研究的目的:
- 调查联合1-基 (Kes) 和胰岛素 (Inu) 补充剂对便微生物群的影响.
- 为了检查细菌生长模式和糖化酸酶家族32 (GH32) 基因丰富度.
- 为了探索饮食摄入量和GH32基因表达之间的联系,以应对益生菌补充剂.
主要方法:
- 随机,双盲,安慰剂对照试验,对40名健康成年人进行.
- 补充4周的联合Kes和Inu或安慰剂 (麦芽糖+玉米).
- 对便微生物组,细菌生长和GH32基因丰度的分析,以及饮食摄入量的评估.
主要成果:
- 凯斯和伊努的联合补充剂有选择性地增加了Bifidobacterium adolescentis和B. longum.
- B. longum (cscA+) 在Kes上生长,而B. adolescentis (inuA+) 在Kes和Inu上生长.
- 受访者显示GH32基因上调与更高摄入量的视网醇,C16:3 (n-6),绿叶蔬菜和头金枪鱼有关.
结论:
- 益生菌补充剂可以导致Bifidobacterium的物种特异性增加.
- 对益生菌的个体反应与特定的细菌生长和GH32基因活性有关.
- 饮食因素影响益生菌的有效性,支持个性化肠道健康干预措施.
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