甲蛋白组学揭示了根据克罗恩氏病的位置,肠道微生物组功能的饮食诱导的变化
Stefano Levi Mortera1, Valeria Marzano1, Federica Rapisarda1
1Immunology, Rheumatology and Infectious Disease Research Area, Human Microbiome Unit, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy.
Microbiome
|October 24, 2024
概括
富含纤维,低脂肪饮食 (Mi-IBD) 改善了克罗恩病 (CD) 患者的肠道微生物组功能,特别是增强了碳水化合物代谢. 这种饮食对结肠疾病患者来说,与仅有结肠疾病患者相比,更有好处.
科学领域:
- 胃肠病学 胃肠病学
- 微生物组研究 微生物组研究
- 营养科学 营养科学
背景情况:
- 克罗恩病 (CD) 涉及慢性肠道炎症,饮食显著影响肠道微生物群 (GM).
- 饮食改变对CD患者转基因功能的影响仍未得到充分研究.
- 这项研究研究了一种特定的高纤维,低脂肪饮食 (Mi-IBD) 对CD患者的GM功能的影响.
研究的目的:
- 评估Mi-IBD饮食对克罗恩病患者肠道微生物组功能的影响.
- 为了比较CD患者和健康家庭对照 (HHCs) 之间的GM功能.
- 为了探索疾病的位置 (ileal vs. colon) 如何影响对饮食干预的反应.
主要方法:
- 一种高纤维,低脂肪 (Mi-IBD) 饮食被实施了8周.
- 参与者包括CD患者 (接受咨询或提供餐饮) 和HHCs.
- 在基线,第8周和第36周使用液态染色学-双重质谱学进行了便样本的甲型蛋白质组分析.
主要成果:
- 在CD患者和HHC患者之间,基线的元蛋白质样本有所不同.
- 米-IBD饮食增加了碳水化合物和铁的运输和新陈代谢.
- 仅患有乳腺癌的CD患者表现出Faecalibacterium丰富度的下降;CD患者与HCs相比,碳水化合物和 purin/pyrimidine合成途径始终不足,与免疫相关蛋白质的调高.
结论:
- 在CD患者中,Mi-IBD饮食对微生物功能产生了积极的改变,增强了碳水化合物代谢.
- 甲基蛋白质组分析揭示了基于疾病位置的功能性微生物群差异.
- 饮食干预对结肠病患者具有更大的益处,而不是那些只患有结肠病的结肠病患者.
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