JCC: 人肠系膜淋巴结微生物组在克罗恩病和溃疡性结肠炎之间的区别

2019-01-05 MedSci MedSci原创

肠系膜淋巴结是易位细菌并产生免疫反应的部位。因此,了解炎症性肠病中肠系膜淋巴结的微生物组是很重要的。本研究旨在探讨克罗恩病和溃疡性结肠炎患者的肠系膜淋巴结微生物群是否存在差异。

背景和目标
肠系膜淋巴结是易位细菌并产生免疫反应的部位。因此,了解炎症性肠病中肠系膜淋巴结的微生物组是很重要的。本研究旨在探讨克罗恩病溃疡性结肠炎患者的肠系膜淋巴结微生物群是否存在差异。

方法
研究人员从克罗恩病溃疡性结肠炎患者中收集肠系膜淋巴结标本。从肠系膜淋巴结中提取总DNA并评估细菌DNA。所有工作都是在无菌环境中使用无菌技术完成的。对16S DNA呈阳性的样品进行了新一代测序,并确定了细菌门和物种的特性。

结果
克罗恩病肠系膜淋巴结与溃疡性结肠炎中观察到的微生物特征明显不同。溃疡性结肠炎患者淋巴结中Firmicutes的相对丰度较大,而克罗恩病患者中变形菌较多。虽然克罗恩病患者的肠系膜淋巴结中物种多样性减少,但这些淋巴结含有较多数量较少的主要门,主要是梭杆菌为主。

结论
本研究证实克罗恩病与溃疡性结肠炎肠系膜淋巴结微生物组之间存在明显差异。这种微生物差异可以帮助诊断克罗恩病或溃疡性结肠炎,特别是在切除时不确定性结肠炎的情况下。

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    2019-09-04 nymo
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    2019-01-07 sodoo
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    2019-01-07 zzc2216

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