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Regression toward the mean (“RTM”) is a phenomenon in which extremely high or low values—for example, and individual’s blood pressure at a particular moment—appear closer to a group’s average upon remeasuring. Although this statistical peculiarity is the result of random error and chance, it has been problematic across various medical, scientific, financial and psychological applications. In particular, RTM, if not taken into account, can interfere when...
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相关实验视频

Updated: Sep 9, 2025

Using a Murine Model of Psychosocial Stress in Pregnancy as a Translationally Relevant Paradigm for Psychiatric Disorders in Mothers and Infants
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肠道微生物群,免疫细胞和产后抑郁症:一个调解门德尔随机化研究

Bo Zhou1, Jingcheng Guo1, Xuanxuan Peng1

  • 1Department of Anesthesiology, Hunan Provincial People's Hospital, The First Affiliated Hospital of Hunan Normal University, Changsha, China.

Journal of affective disorders
|August 28, 2025
PubMed
概括

这项研究使用门德尔的随机化方法发现肠道细菌,免疫细胞和产后抑郁症 (PPD) 之间的因果关系. 它确定了特定的肠道微生物和免疫细胞,这些微生物和免疫细胞介导了患PPD的风险.

关键词:
肠道微生物群免疫细胞调解分析孟德尔随机化产后抑郁症

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Generating a Reproducible Model of Mid-Gestational Maternal Immune Activation using PolyI:C to Study Susceptibility and Resilience in Offspring
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科学领域:

  • 神经科学
  • 免疫学
  • 微生物学

背景情况:

  • 新出现的证据表明肠道微生物群,免疫系统和产后抑郁症之间存在联系.
  • 然而,这些关联背后的因果途径在很大程度上仍未被描述.

研究的目的:

  • 使用孟德尔随机化研究肠道微生物群,免疫细胞特征和PPD之间的潜在因果关系.
  • 阐明肠道微生物群和免疫细胞在PPD发展中的中介作用.

主要方法:

  • 采用孟德尔随机化 (MR) 和全基因组关联研究的总结数据.
  • 采用了各种MR技术,包括逆方差加权,加权中位数,MR-Egger,简单模式和加权模式.
  • 进行调解分析和敏感性测试以确认发现.

主要成果:

  • 在免疫细胞特征和PPD (26个危险因素,19个保护因素) 之间发现了许多显著的相关性.
  • 在肠道微生物群和PPD之间发现了显著的关联 (13个危险因素,20个保护因素).
  • 发现了6例肠道微生物介导了PPD风险,并确定了免疫细胞作为其他途径的介导者.

结论:

  • 这项MR研究提供了免疫细胞,肠道微生物群和PPD之间的因果相互作用的证据.
  • 这些发现澄清了肠道微生物组和免疫系统在PPD病变中扮演的中介角色.
  • 提供了对PPD背后生物机制的新见解.