在早产婴儿中,便微生物组和胆汁酸概况不同,有亲肠道营养相关的胆固醇症
Ellen S Wagner1, Kaitlyn Oliphant1, Mark D'Souza1
1Department of Pediatrics, University of Chicago, Chicago, IL, USA.
Journal of clinical and translational hepatology
|December 31, 2025
概括
过早出生婴儿的肠道营养相关胆固醇症 (PNAC) 与肠道微生物群和胆酸差异有关. 特定的细菌和胆酸样本可以预测或影响PNAC的发展.
科学领域:
- 新生儿科学 新生儿科学
- 微生物组研究 微生物组研究
- 胃肠病学 胃肠病学
背景情况:
- 亲肠道营养相关胆固醇症 (PNAC) 在早产婴儿中很常见,但并非所有接受亲肠道营养 (PN) 的婴儿都会出现这种情况.
- 肠道微生物组和便胆酸组成的差异可能会影响早产婴儿接受PN和不同肠道料的PNAC发育.
研究的目的:
- 研究便微生物组,胆酸含量和PNN在PNN的早产婴儿中PNAC的发展之间的关系.
主要方法:
- 在NICU入院期间从22名早产婴儿收集了连续胆红素测量和便样本.
- 在便样本上进行了16S rRNA基因测序和胆酸分析.
- 使用双项回归,调整月经后年龄和料量,以评估微生物组和胆汁酸对PNAC的影响.
主要成果:
- 胆固醇的婴儿有更高的PN和抗生素暴露和更长的NICU停留时间.
- 非胆固醇的婴儿显示出更高的微生物群丰富性,具有明显的细菌丰富性 (较低的细菌类,较高的蛋白质细菌和菌类).
- 在胆固醇婴儿中观察到较低的脱氧醇酸度;在非胆固醇婴儿中,阿克尔曼西亚的丰度随着料量增加而增加.
结论:
- 这项研究是第一个将早产婴儿的PNAC易感性,微生物组和便胆酸联系起来.
- 确定了与PNAC发展相关的独特的微生物组和胆酸模式.
- 这些发现可能有助于在脆弱的早产婴儿中开发针对PNAC的向疗法.
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