在儿科性结肠炎中,粘膜相关和光线性肠道微生物群的比较分析
Takeo Kondo1, Sonoko Kondo1, Haruyuki Nakayama-Imaohji2
1Department of Pediatrics, Faculty of Medicine, Kagawa University, 1750-1 Ikenobe, Miki, Kita, Kagawa 761-0793, Japan.
International journal of molecular sciences
|November 13, 2025
概括
儿童性结肠炎 (UC) 破坏了肠道粘膜相关微生物群 (MAM),使其与便细菌相似. 这表明粘液屏障受损,可能有助于UC预后评估.
科学领域:
- 胃肠病学 胃肠病学
- 微生物学 微生物学
- 儿科医学 儿科医学
背景情况:
- 炎症性肠道疾病 (IBD),包括性结肠炎 (UC) 和克罗恩病,与肠道微生物群失调有关.
- 严重的胰腺炎在儿科UC比成人UC更常见.
- 结肠粘膜相关微生物群 (MAM) 的变化及其与儿科UC疾病严重程度的联系需要进一步调查.
研究的目的:
- 为了比较来自儿科UC患者和非IBD对照者的结肠洗液 (CLF) 和便样本中的肠道微生物群.
- 调查MAM组成,疾病严重程度和儿科UC的粘液屏障完整性之间的关联.
主要方法:
- 16S对来自19名儿科UC患者和19名非IBD对照者的结肠冲洗液 (CLF) 和便样本进行了基因组分析.
- 在不同结肠部位之间以及在MAM和便样本之间比较MAM社区结构和细菌组成.
- 评估MAM分布及其与疾病活性和粘膜炎症的关系.
主要成果:
- 在两组中,MAM社区结构在整个结肠中都是相似的.
- 在非IBD个体中,MAM和便细菌组成有显著差异,但在儿科UC患者中没有,这表明UC的粘液屏障受损.
- 在儿科UC中,MAM分布因疾病活动增加而变得混乱,显示出来自上部消化道或环境来源的细菌的更多丰富性.
- 在儿科UC MAM中观察到关键的细菌标志物,如增加的*Lactobacillus*和*Enterococcus*,或减少的*Faecalibacterium*和*Blautia*.
结论:
- 这项研究强调了儿科UC的粘液屏障受损,导致MAM和便微生物群相互混合.
- 失调的MAM和异常细菌的存在与儿科UC的疾病活性相关.
- 在MAM中监测特定的细菌标志物可能为评估儿科UC患者的预后提供有价值的工具.
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