在产中期至晚期生产阶段,肠粘膜屏障功能的与年龄相关的变化
Ai Kuroda1, Jirapat Jaisue2, Naoki Isobe2
1Graduate School of Integrated Science for Life, Hiroshima University, Higashi- Hiroshima, Japan.
Poultry science
|December 21, 2025
概括
保持肠道屏障功能的关键是老年产母. 老龄化的免疫细胞功能和屏障完整性降低,与肠道微生物群的变化有关. 微生物干预可以提高的生产力.
科学领域:
- 禽畜科学 禽畜科学 禽畜科学
- 动物免疫学 动物免疫学
- 胃肠病学 胃肠病学
背景情况:
- 老产母生产率下降是一个经济问题.
- 肠道健康对于晚期生产阶段的持续生产力至关重要.
- 肠道粘膜屏障功能的与年龄相关的变化尚未得到充分理解.
研究的目的:
- 为了研究与年龄相关的变化,在中后期生产阶段,在白雷戈恩的肠粘膜屏障功能.
- 分析衰老对组织形态,免疫细胞种群,基因表达和微生物群落的影响.
- 探索与年龄相关的因素和细菌丰富度之间的相关性.
主要方法:
- 从大约300,600和800天大的母收集了阴茎和阴茎组织和光线内容.
- 分析了组织形态,免疫细胞种群,细胞因子和紧结基因表达,抗菌,IgA,短链脂肪酸和微生物群多样性.
- 进行了与年龄相关的因素和细菌丰富度之间的相关性分析.
主要成果:
- 衰老显著降低了与Th17和Treg细胞分化和功能相关的细胞因子的表达,特别是在阴中.
- 紧密结相关基因和抗菌的表达也随着年龄的增长而下降.
- 相关性分析揭示了与粘膜免疫力与年龄相关的变化相关的细菌群.
结论:
- 衰老会通过降低Th17和Treg细胞相关免疫力,损害产母的肠粘膜屏障完整性.
- 肠道微生物群的组成与与年龄相关的屏障功能下降有关.
- 针对免疫功能的微生物干预可以保护肠道的完整性,并支持老的生产力.
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