来自不同大小的狗的大肠营养和物理化学参数重塑了狗微生物群的结构和功能in vitro
Charlotte Deschamps1,2, Delphine Humbert3, Sandrine Chalancon1
1Université Clermont Auvergne, UMR 454 MEDIS UCA-INRAE, Clermont-Ferrand, Puy-de-Dôme, France.
Bioengineered
|March 12, 2024
概括
狗的大小会影响肠道微生物和结肠环境. 这项研究表明,虽然结肠条件驱动微生物功能,但特定的肠道微生物对于准确地模拟不同大小的狗在体外是必不可少的.
科学领域:
- 兽医科学 兽医科学 兽医科学
- 微生物学 微生物学
- 动物生理学 动物生理学
背景情况:
- 狗的大小变化与大肠生理学的差异相关,包括肠道微生物群.
- 肠道微生物群在维持整体动物健康方面发挥着至关重要的作用.
研究的目的:
- 研究肠道微生物与物理化学和营养参数在塑造狗结肠微生物群结构和功能的相对重要性.
- 为了评估这些因素,在不同大小的狗中使用犬粘膜人工结肠 (CANIM-ARCOL) 模型进行评估.
主要方法:
- CANIM-ARCOL被调整为模拟小型,中型和大型狗的营养物质可用性,胆酸概况,结肠pH值和运输时间.
- 生物反应器用中型狗的便样本进行了注射,并应用了不同的狗大小参数.
主要成果:
- 应用狗大小参数表明,大小与气体或短链脂肪酸 (SCFA) 生产之间存在正相关性.
- 通过16S Metabarcoding识别,在不同的狗大小模拟中观察到不同的微生物群概况.
- 环境结肠参数足以驱动微生物群功能,但与大小相关的便微生物是必要的,以准确地进行体外繁殖犬结肠生态系统.
结论:
- 这项研究为驱动犬体微生物群的参数提供了新的机制性见解,与狗体型相关.
- 在各种狗大小条件下,CANIM-ARCOL作为一个有价值的体外平台,用于研究食或制药化合物与狗结肠微生物群之间的相互作用.
- 未来CANIM-ARCOL模型的应用将包括对慢性肠病和肥胖等疾病状况的调查.
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