Gut Microbiota and Postpartum Depression: a Mendelian Randomization Study

Overview

Journal Front Psychiatry

Specialty Psychiatry

Date 2024 Jun 18

PMID 38887725

Authors

Jianjun Zhang

Lechuan Wei

Hongfei Tan

Wenwen Pang

Affiliations

Soon will be listed here.

Abstract

Background: Increasing evidence suggests a correlation between intestinal microbiota and the gut-brain axis; however, the causal relationship between gut microbiota and postpartum depression (PPD) remains unclear.

Methods: In this study, a two-sample Mendelian randomization (MR) design was employed to analyze the GWAS data of gut microorganisms from the Mibiogen database and PPD data from the UK biobank. Various statistical methods, including inverse variance weighted, MR-Egger, weighted median, weighted model, and MR-PRESSO, were utilized to investigate the causal relationship between gut microbiota and PPD. Additionally, sensitivity analysis was conducted to assess the robustness of the findings.

Results: Through MR analysis, it was found that phylum Actinobacteria (=0.014, OR=0.971, 95% CI=0.948-0.994) and genus Holdemanella (=0.023, OR=0.979, 95% CI=0.961-0.997) have protective effects on PPD, while the other two unknown genera, genus Unknown Ids 2001 (=0.025, OR=0.972,95% CI=0.947-0.996), and genus Unknown Ids 2755 (=0.012, OR=0.977, 95% CI=0.959-0.995) also has a protective effect on PPD. The sensitivity analysis results indicate that there is no heterogeneity or horizontal pleiotropy.

Conclusion: This study has identified a causal association between Actinomycetota, Holdemanella, and PDD through MR analysis. These findings offer significant contributions to the development of personalized treatment approaches for PPD, encompassing interventions such as dietary modifications or microbiome interventions.

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