CFP/Yit:一种具有缓慢胃肠过境的内生小鼠菌株
Gaku Wagai1, Masao Togao2, Takashi Kurakawa2
1Yakult Central Institute, 5-11 Izumi, Kunitachi-Shi, Tokyo, 186-8650, Japan. gaku-wagai@yakult.co.jp.
Digestive diseases and sciences
|April 15, 2024
概括
与ICR小鼠相比,CFP小鼠的胃肠道过渡 (GIT) 时间显著较慢. 这种新的小鼠模型为研究缓慢的GIT和相关功能障碍提供了有价值的工具.
科学领域:
- 胃肠病学 胃肠病学
- 动物模型 动物模型
- 微生物组研究 微生物组研究
背景情况:
- 胃肠道过渡 (GIT) 受饮食,遗传和肠道微生物群的影响.
- 缓慢的GIT可以表明功能障碍,如便秘.
- 现有的动物模型往往无法准确地代表自发的缓慢的GIT.
研究的目的:
- 为了表征CFP/Yit (CFP) 杂交小鼠菌株的胃肠道过境 (GIT) 现型.
- 建立CFP小鼠作为研究缓慢GIT的潜在模型.
主要方法:
- 在雌性和雄性CFP小鼠中的GIT与Crl:CD1 (ICR) 小鼠之间的比较.
- 评估使用光标记的德克斯,料摄入量,便产量和水含量.
- 结肠和肠道微生物群组成分析的组织病理学分析.
主要成果:
- CFP小鼠的整体GIT时间 (6.0倍) 和结肠过境时间 (2.9倍) 显着更长.
- 在CFP小鼠中观察到较慢的胃和体过境.
- 降低料摄入量和便产量,降低CFP小鼠便水含量.
- 没有显著的组织病理变化,但改变了肠道微生物群,具有更高的Firmicutes/Bacteroidota比率.
结论:
- CFP小鼠表现出明显的缓慢过境表型,穿过胃,体和结肠.
- 这种菌株代表了一种新的和有价值的模型,用于研究胃肠道生理学和与缓慢传输相关的疾病.
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