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在非常早产婴儿的肠道微生物群,新陈代谢和便calprotectin之间的动力学和交叉交流:对食不耐受性的洞察
Luyang Hong1, Yihuang Huang1, Junyan Han1
1Department of Neonatology, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai 201102, China.
早产婴儿的食不耐受 (FI) 与肠道细菌和免疫反应的破坏有关. 特定的代谢物可能会影响这种情况,强调早期肠道发育的重要性.
科学领域:
- 新生儿医学 新生儿医学
- 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:
- 食不耐症 (FI) 显著影响早产婴儿的生长和发育.
- 以前的研究将FI与较低的便calprotectin (FC) 水平联系起来.
- 了解肠道微生物群,新陈代谢和FI免疫的相互作用至关重要.
研究的目的:
- 研究早产婴儿微生物群,代谢概况和宿主免疫的产后发展.
- 探索有或没有食不耐症的婴儿之间这些因素的差异.
- 为了确定这群人群中食不耐症的潜在机制.
主要方法:
- 从非常早产婴儿 (<32周孕期或<1500克出生体重) 的每周便样本进行纵向分析.
- 评估细菌概况,新陈代谢和calprotectin水平.
- 探索这些参数的相互关系和纵向发展.
主要成果:
- 在118名非常早产婴儿中,有48名患有食不耐症.
- FI婴儿表现出中断的微生物-免疫轨迹,减少了细菌的丰富性,多样性和FC水平在3-4周.
- 在3-6周之间观察到代谢变化,与细菌丰富度,FC水平和完全肠道养时间相关的特定代谢物 (泛多酸,多胺) 相关.
结论:
- 在早产婴儿中,食不耐受与受损的微生物群-免疫相互作用有关.
- 特定的代谢物可能在FI的发病过程中发挥作用.
- 早期的微生物和代谢发育对非常早产婴儿至关重要,并影响养耐受性.
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