Causal Effects of Endometriosis on SLE, RA and SS Risk: Evidence from Meta-analysis and Mendelian Randomization

Overview

Journal BMC Pregnancy Childbirth

Publisher Biomed Central

Specialty Gynecology & Obstetrics

Date 2024 Feb 23

PMID 38395801

Authors

Tianyou Tang

Yi Zhong

Sipei Xu

Huilin Yu

Affiliations

Soon will be listed here.

Abstract

Background: Endometriosis is an underdiagnosed disorder that affects an estimated 6-10% of women of reproductive age. Endometriosis has been reported in epidemiological studies to be associated with autoimmune diseases. However, the relationship remains controversial.

Methods: A meta-analysis of observational studies was undertaken to evaluate the risk of autoimmune diseases in patients with endometriosis. The relevant studies were retrieved via the databases Medline, Embase and Web of Science until July 20, 2023. Mendelian randomization (MR) was subsequently utilized to scrutinize the causal influence of genetic predisposition toward endometriosis on three autoimmune diseases.

Results: The meta-analysis findings revealed a relationship between endometriosis and the onset of SLE (cohort studies: RR = 1.77, 95% confidence interval (CI): 1.47-2.13, I = 0%; Case-control and cross-sectional studies: OR = 5.23, 95% CI: 0.74-36.98, I = 98%), RA (cohort studies: RR = 2.18, 95% CI: 1.85-2.55, I = 92%; Case-control and cross-sectional studies: OR = 1.40, 95% CI: 1.19-1.64, I = 0%) and SS (cohort studies: RR = 1.49, 95% CI: 1.34-1.66, I = 0%). Similarly, in our MR study, the results of the inverse-variance-weighted (IVW) model suggested that genetic predisposition to endometriosis was causally associated with an increased risk for SLE (OR = 1.915, 95% CI: 1.204-3.045, p = 0.006) and RA (OR = 1.005, 95% CI: 1.001-1.009, p = 0.014).

Conclusions: Both our meta-analysis and MR study indicate that endometriosis increases the risk of autoimmune diseases. These findings not only broaden our understanding of the genetic mechanisms underlying the comorbidity of endometriosis and autoimmune diseases, but also offer a new strategy for autoimmune disease prevention.

Citing Articles

Association between endometriosis and arthritis: results from NHANES 1999-2006, genetic correlation analysis, and Mendelian randomization study.

Xu H, Zou H, Wen Q, Xing X, Xu N, Wu S Front Immunol. 2024; 15:1424648.

PMID: 39136014 PMC: 11317389. DOI: 10.3389/fimmu.2024.1424648.

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