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关于炎症性肠病家族队列研究中的微生物变化的首次见解
Philipp Rausch1, Ilka Ratjen2,3,4, Lukas Tittmann2,3
1Institute of Clinical Molecular Biology, University Hospital Schleswig-Holstein, University of Kiel, Kiel, Germany.
炎症性肠病 (IBD) 患者表现出与疾病严重程度和炎症相关的独特肠道微生物群落. 这些微生物模式在队列中具有普遍性,但表现出有限的家族传播.
科学领域:
- 微生物组研究的研究.
- 胃肠病学 胃肠病学
- 人类遗传学 人类遗传学
背景情况:
- 炎症性肠病 (IBD) 影响着大量人口,具有强烈的遗传倾向和环境影响.
- 了解肠道微生物群在IBD病原体中的作用对于开发向疗法至关重要.
- 基尔炎症肠病 (IBD) 家庭队列研究 (KINDRED队列) 成立,以调查高风险家庭的IBD发展.
研究的目的:
- 描述影响健康和IBD肠道微生物群组成的因素.
- 为了识别与IBD病理和炎症相关的微生物失生症模式.
- 在IBD的背景下,评估肠道微生物群落的遗传性和家族内传播.
主要方法:
- 预期队列研究设计,采用系统数据和从IBD患者和亲属收集生物样本.
- 纵向随访以收集最新的健康,生活方式和发病率数据.
- 生态分析将纵向微生物数据与人类,医学,营养和社会信息相结合.
主要成果:
- 微生物失生指标在IBD队列中确定了可概括的社区梯度.
- 这些梯度与IBD病理,炎症标志物 (例如,布里斯托尔便得分,ASCA) 和遗传风险密切相关.
- 便过境时间,受人类/医学因素的影响,显著改变了细菌群落.
- 具有IBD特异性的社区,其特点是肠杆菌,机会性闭膜菌和口腔类.
- 早期IBD发展显示微妙的微生物和生理变化.
结论:
- IBD与肠道微生物群落的广泛生态变化有关,这表明了急剧的状态过渡.
- 这些微生物模式在队列中具有普遍性,并影响炎症.
- 在IBD中,肠道微生物群体表现出增加的性,但有限的遗传性或家族内传播.
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