野生脊椎动物的肠道微生物群-免疫-大脑轴:动态相互作用和健康影响
Hugo Pereira1, Joseph I Hoffman1,2,3,4,5, Oliver Krüger1,3
1Department of Animal Behaviour, Bielefeld University, Bielefeld, Germany.
Frontiers in microbiology
|September 25, 2024
概括
在幼中,肠道微生物群-免疫-大脑轴没有显示任何反. 然而,微生物多样性对身体状况产生了积极的影响,而免疫力在压力下降 (皮质类固醇).
科学领域:
- 生态生态学 生态生态学
- 微生物学 微生物学
- 免疫学 免疫学 免疫学
- 动物生理学 动物生理学
背景情况:
- 肠道微生物群-免疫-大脑轴对健康至关重要,但在野生,发育中的动物中了解甚少.
- 以前的研究集中在人类和实验室老鼠身上,这给野生种群留下了知识上的差距.
研究的目的:
- 为了研究肠道微生物群-免疫-大脑轴相互作用在发展常见 (Buteo buteo).
- 评估这些相互作用在早期发育过程中对个体状况和压力水平的影响.
主要方法:
- 用多标记方法对野生常见子幼进行纵向研究.
- 对细菌和真核肠道微生物群的分析,免疫检测和羽毛皮质 (压力代理) 的分析.
- 贝叶斯结构方程建模以确定网络内的关系.
主要成果:
- 没有发现肠道微生物多样性与免疫或压力参数之间的反证据.
- 免疫力与皮质水平 (压力) 有负相关性,而微生物多样性与身体状况有积极相关性.
- 皮质和真核微生物群的多样性随着年龄的增长而减少,而免疫活性增加.
结论:
- 肠道微生物群-免疫-大脑轴在发育中的中没有显示明确的反,这表明压力主导了免疫成熟.
- 野生系统的复杂性和发展阶段可能会掩盖从实验室模型中已知的关联.
- 更高的微生物多样性与更好的体状况有关,突出显示了潜在的健康益处.
相关概念视频
01:23Anatomy of the Intestines
71.6K
Although digestion of proteins, carbohydrates, and lipids may begin in the stomach, it is completed in the intestine. The absorption of nutrients, water, and electrolytes from food and drink also occurs in the intestine. The intestines can be divided into two structurally distinct organs—the small and large intestines.
Small Intestines
The small intestine is an ~7 meter-long tube with an inner diameter of just 2.5 cm. Since most nutrients are absorbed here, the inner lining of the...
Small Intestines
The small intestine is an ~7 meter-long tube with an inner diameter of just 2.5 cm. Since most nutrients are absorbed here, the inner lining of the...
71.6K
01:05Physiology of Enteric Nervous System and Gut Health
234
The gastrointestinal tract, responsible for the digestion and absorption of nutrients, is safeguarded by the intestinal barrier, which consists of secretory, physical, and immune components. At the forefront is the secretory barrier, composed of essential elements such as mucus, gut microbiota, and defense proteins. They collaborate to break down food particles, facilitate nutrient absorption, and maintain optimal gut health. These secretory components ensure the smooth functioning of the...
234