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素饮食对野生型小鼠的便微生物群有适度的影响
Nadine Rohwer1,2,3, Racha El Hage4, Christopher Smyl5
1Medical Department B, Division of Hepatology, Gastroenterology, Oncology, Hematology, Endocrinology and Diabetes, Brandenburg Medical School, University Hospital Ruppin-Brandenburg, 16816 Neuruppin, Germany.
Nutrients
|November 14, 2023
概括
性饮食 (KD) 改变了小鼠的肠道细菌,增加了有益的活性细菌,并减少了与炎症相关的蛋白质细菌. 这些变化表明KD通过肠-大脑轴具有潜在的抗炎作用.
科学领域:
- 微生物组研究的研究.
- 神经科学是一个神经科学.
- 饮食干预措施 饮食干预措施
背景情况:
- 性饮食 (KD) 显示出神经保护潜力,可能由肠道微生物群通过肠-大脑轴介导.
- 目前关于KD对肠道微生物群组成的影响的研究不一致,通常使用16S rRNA基因和元基因组测序.
研究的目的:
- 为了研究4周的性饮食 (KD) 对雌性C57Bl/6J小鼠的结肠微生物群的影响.
- 为了比较由KD引起的肠道微生物组变化与西方饮食 (WD).
主要方法:
- 来自KD和WD小鼠的便样本使用光现场杂交 (FISH) 进行了分析.
- 鱼类允许总细菌和特定微生物群体的量化.
主要成果:
- 与WD相比,4周的KD显著改变了肠道细菌的总数和组成.
- 用KD养的小鼠表现出Actinobacteria (特别是Bifidobacteria spp.) 的绝对数量增加. 和减少了蛋白质细菌.
- 在KD养的小鼠中观察到Atopobium属的丰富性增加.
结论:
- 观察到的肠道微生物群的变化,包括增加的动因细菌和减少的蛋白质细菌,表明KD的潜在抗炎作用.
- 肠道疾病的健康益处可能源于肠道微生物群中的特定关键属的差异丰富,而不是广泛的组成变化.
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