在性结肠炎患者的炎症性粘膜中,微生物丁酸盐的容量减少
Sushrut Jangi1,2, John Moyer3, Sarah Sandlow3
1Department of Medicine, Tufts Medical Center, Boston, MA, USA. sjangi@tuftsmedicalcenter.org.
在性结肠炎中,静止的粘膜表现出与活跃疾病相比,产生丁酸盐的细菌增加. 肠道微生物组的这种转变可能与缓解期间摄入较高的纤维有关.
科学领域:
- 胃肠病学 胃肠病学
- 微生物组研究 微生物组研究
- 免疫学 免疫学 免疫学
背景情况:
- 减少丁酸盐的产生与活性性结肠炎 (UC) 便微生物组有关.
- 粘膜微生物组在活跃与静止UC粘膜中的酸盐容量仍然没有研究.
研究的目的:
- 分析活跃和静止UC的粘膜细菌和真菌群落.
- 预测这些社区对丁酸盐合成的贡献.
- 为了将发现与饮食纤维摄入量相关联.
主要方法:
- 15名UC患者的活跃 (n=13) 和静止 (n=17) 结肠粘膜的活检.
- 使用FiberScreen问卷进行评估的食纤维摄入量.
- 用于细菌和真菌种群识别的安普利康序列测序.
主要成果:
- 在活跃和静止的粘膜之间,细菌的多样性是相似的.
- 关键的类菌种 (例如,Butyricimonas,Subdoligranulum,Alistipes) 在静止的粘膜上升.
- 预测的酸盐激酶活性在静止的粘膜中增加,与纤维摄入量呈正相关.
结论:
- 静静的UC粘膜港口增加了Butyrogenic微生物的相对丰富性.
- 增加的Butyrogenic微生物可能与静止期间增加的纤维摄入量有关.
- 向酸盐生产者调节粘膜微生物群可以帮助UC静止.
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