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Although digestion of proteins, carbohydrates, and lipids may begin in the stomach, it is completed in the intestine. The absorption of nutrients, water, and electrolytes from food and drink also occurs in the intestine. The intestines can be divided into two structurally distinct organs—the small and large intestines.
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Genome-wide association studies or GWAS are used to identify whether common SNPs are associated with certain diseases. Suppose specific SNPs are more frequently observed in individuals with a particular disease than those without the disease. In that case, those SNPs are said to be associated with the disease. Chi-square analysis is performed to check the probability of the allele likely to be associated with the disease.
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肠道微生物群和亚托皮炎:一个双样本的门德尔随机化研究.

Yan Xue1, Linzhu Zhang1,2, Yajun Chen1,3

  • 1The Third People's Hospital of Chengdu, Clinical College of Southwest Jiao Tong University, Chengdu, China.

Frontiers in medicine
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概括

这项研究使用门德尔随机化来调查肠道细菌和亚托皮性皮肤炎 (AD) 之间的因果关系. 研究结果表明,特定的肠道微生物群变化有因果影响AD风险,支持肠道向治疗.

关键词:
门德尔的随机化亚托邦性皮肤炎的发生.我们的肠道菌群是肠道菌群.我们的肠道微生物群.单个核酸的多形态.

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科学领域:

  • 微生物组研究的研究.
  • 遗传学 是一个遗传学.
  • 皮肤病学 皮肤病学

背景情况:

  • 越来越多的证据将肠道微生物群的变化与阿托皮性皮肤炎 (AD) 联系起来.
  • 肠道微生物群和AD之间的明确因果关系仍然难以捉摸.
  • 了解这种联系对于开发有效的AD治疗至关重要.

研究的目的:

  • 调查肠道微生物群组成和发展亚型皮肤炎 (AD) 的风险之间的潜在因果关系.
  • 使用两个样本的门德尔随机化 (MR) 方法来进行强大的因果推理.
  • 识别可能影响AD病变的特定细菌种群.

主要方法:

  • 采用了两样本的门德尔随机化 (MR) 研究设计.
  • 211个肠道微生物群特征的总结统计数据来源于MiBioGen联盟 (18,340个人).
  • 亚托皮炎 (AD) 数据来自FinnGen生物库 (218,467个人).
  • 使用逆变量加权 (IVW),加权中位数 (WME) 和MR-Egger方法,以及灵敏度分析.

主要成果:

  • 分析确定了13种与阿尔茨海默病风险相关的细菌种群:有6种正相关,7种负相关.
  • 像Bifidobacteriaceae和Bifidobacterium这样的特定种群与AD风险有负相关性.
  • 相反,包括Bacteroides和Clostridiaceae在内的属1与AD风险有积极的关联.
  • 敏感性分析证实了这些发现的可靠性,MR Steiger的测试表明了肠道菌群与AD的潜在因果关系.

结论:

  • 这项MR研究提供了遗传证据,证明肠道微生物群变化与亚托皮炎 (AD) 风险之间存在因果关系.
  • 研究结果支持肠道微生态干预措施在阿尔茨海默病管理中的潜力.
  • 这项研究为进一步调查肠道微生物组在AD病变发生过程中的机械作用奠定了基础.