Work

Causal relationship between ankylosing spondylitis and multiple sclerosis: Evidence from 2-sample Mendelian randomization

Year: 2025

Type: article

Abstract: Ankylosing spondylitis (AS) and multiple sclerosis (MS) are chronic immune-mediated disorders with overlapping epidemiological and genetic features, but their causal relationship remains unclear. In this study, we performed a 2-sample Mendelian randomization (MR) analysis using large-scale genome-wide association study summary statistics from European populations to investigate whether AS causally influences the risk of MS. Instrumental variables were selected based on stringent significance, independence, and validity criteria. The primary MR analyses, including the inverse variance weighted method, indicated that AS is associated with an increased risk of MS (odds ratio = 2.18, 95% confidence interval: 1.31-3.63, P = .00), and this finding was supported by the MR Egger method. Sensitivity analyses confirmed the robustness of the results. Inverse MR analysis found no evidence for a causal effect of MS on AS. These findings contribute to the understanding of the shared genetic architecture and pathophysiological pathways between AS and MS. Further studies in more diverse populations and with nonlinear models are warranted to validate and extend these findings.

Source: Medicine

DOI: 10.1097/md.0000000000044788

Authors: Rui Liu, Gang Peng, Yongbing Xiao

Institutions: Central South University, Xiangya Hospital Central South University

Language: English

Topic: Multiple Sclerosis Research Studies

Subfield: Pathology and Forensic Medicine

Field: Medicine

Domain: Health Sciences

SDG: Good health and well-being

Open Access status: gold

Estimated APC paid: $1,950