• Medicine · Sep 2023

    Causality between depression and ankylosing spondylitis in a European population: Results from a Mendelian randomization analysis.

    • Naidan Zhang, Chunjiao Song, Chaixia Ji, Baibing Xie, Yao Shu, and Chengliang Yuan.
    • Department of Clinical Laboratory, Peoples Hospital of Deyang City, Deyang, China.
    • Medicine (Baltimore). 2023 Sep 22; 102 (38): e35127e35127.

    AbstractThe aim of this study was to explore the application of Mendelian randomization (MR) Egger and inverse variance weighted (IVW) in a causal effect on depression and ankylosing spondylitis (AS). Instrumental variables (IVs) were determined using genome-wide association studies. The 2-sample MR analysis was conducted by MR Egger to test the causal effect between depression and AS. The pleiotropy of potential instrumental variables was evaluated. The results of MR Egger and IVW were further compared. A total of 3 single nucleotide polymorphisms as the construct IVs were included. IVW results showed a significant causal effect between depression and AS (P < .001). Depression could promote the risk of AS (odds ratio = 1.060, 95% confidence interval: 1.026-1.094). However, the MR Egger showed no causal effect (P = .311). Heterogeneity statistics suggested that no heterogeneity was existed (P > .05). It was also suggested that there was no horizontal pleiotropy in IVs (MR Egger intercept: -0.0004, P = .471). Reverse MR analysis suggested that there was no causal effect between AS and depression (P > .05). Gene expression quantitative trait locus (QTLs) suggested that rs2517601 and RNF39 were positively correlated (beta = 1.066, P < .001). Depression may be one of the causes of AS by MR analysis in a European population. We can estimate the causal effect based on IVW when horizontal pleiotropy is very tiny.Copyright © 2023 the Author(s). Published by Wolters Kluwer Health, Inc.

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