Causal Links Between Brain Functional Networks and Endometriosis: A Large-Scale Genetic-Driven Observational Study

Songwei Feng,1,* Yuru Wang,1,* Sicong Liu,2,* Yueming Zhang,1 Leilei He1 1Department of Obstetrics and Gynaecology, The Fourth Affiliated Hospital of Soochow University, Suzhou, People’s Republic of China; 2Department of Obstetrics and Gynaecology, Zhongda Hospital, School of...

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Main Authors: Feng S, Wang Y, Liu S, Zhang Y, He L
Format: Article
Language:English
Published: Dove Medical Press 2025-02-01
Series:International Journal of Women's Health
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Online Access:https://www.dovepress.com/causal-links-between-brain-functional-networks-and-endometriosis-a-lar-peer-reviewed-fulltext-article-IJWH
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author Feng S
Wang Y
Liu S
Zhang Y
He L
author_facet Feng S
Wang Y
Liu S
Zhang Y
He L
author_sort Feng S
collection DOAJ
description Songwei Feng,1,&ast; Yuru Wang,1,&ast; Sicong Liu,2,&ast; Yueming Zhang,1 Leilei He1 1Department of Obstetrics and Gynaecology, The Fourth Affiliated Hospital of Soochow University, Suzhou, People’s Republic of China; 2Department of Obstetrics and Gynaecology, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, People’s Republic of China&ast;These authors contributed equally to this workCorrespondence: Leilei He, Email helei0609@163.comIntroduction: Endometriosis is a chronic gynecological disorder that significantly impacts women of reproductive age. Recent evidence suggests a bidirectional link between endometriosis and brain functional networks, though the causal mechanisms remain unclear. This study aims to explore these relationships using Mendelian Randomization (MR) analysis.Methods: Data from 191 resting-state functional MRI (rsfMRI) phenotypes and endometriosis genetic datasets were analyzed using both forward and reverse MR approaches. Genetic Instrument Selection was performed to identify valid instrumental variables, ensuring their independence from confounders and strong association with the exposure. Sensitivity analyses were conducted to ensure the robustness of the findings.Results: Forward MR analysis identified three brain networks (Pheno20, Pheno38, Pheno44) significantly associated with endometriosis risk (P FDR < 0.05). Notably, Pheno38 activity was inversely associated with fallopian tube endometriosis, whereas Pheno20 and Pheno44 were positively linked to adenomyosis. Reverse MR analysis revealed that endometriosis of the ovary was inversely associated with functional connectivity in Pheno932, a network involved in cognitive and attention processes. Sensitivity analyses confirmed the reliability of these results.Discussion: This study highlights a complex bidirectional relationship between brain functional networks and endometriosis. Increased activity in specific networks may protect against or predispose individuals to certain subtypes of endometriosis. Conversely, endometriosis also can influence brain connectivity, potentially contributing to cognitive and emotional symptoms.Keywords: endometriosis, brain functional networks, resting-state fMRI, Mendelian randomization
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spelling doaj-art-4639d96e698f453b841578df1c5da4912025-02-11T17:30:56ZengDove Medical PressInternational Journal of Women's Health1179-14112025-02-01Volume 17369376100072Causal Links Between Brain Functional Networks and Endometriosis: A Large-Scale Genetic-Driven Observational StudyFeng SWang YLiu SZhang YHe LSongwei Feng,1,&ast; Yuru Wang,1,&ast; Sicong Liu,2,&ast; Yueming Zhang,1 Leilei He1 1Department of Obstetrics and Gynaecology, The Fourth Affiliated Hospital of Soochow University, Suzhou, People’s Republic of China; 2Department of Obstetrics and Gynaecology, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, People’s Republic of China&ast;These authors contributed equally to this workCorrespondence: Leilei He, Email helei0609@163.comIntroduction: Endometriosis is a chronic gynecological disorder that significantly impacts women of reproductive age. Recent evidence suggests a bidirectional link between endometriosis and brain functional networks, though the causal mechanisms remain unclear. This study aims to explore these relationships using Mendelian Randomization (MR) analysis.Methods: Data from 191 resting-state functional MRI (rsfMRI) phenotypes and endometriosis genetic datasets were analyzed using both forward and reverse MR approaches. Genetic Instrument Selection was performed to identify valid instrumental variables, ensuring their independence from confounders and strong association with the exposure. Sensitivity analyses were conducted to ensure the robustness of the findings.Results: Forward MR analysis identified three brain networks (Pheno20, Pheno38, Pheno44) significantly associated with endometriosis risk (P FDR < 0.05). Notably, Pheno38 activity was inversely associated with fallopian tube endometriosis, whereas Pheno20 and Pheno44 were positively linked to adenomyosis. Reverse MR analysis revealed that endometriosis of the ovary was inversely associated with functional connectivity in Pheno932, a network involved in cognitive and attention processes. Sensitivity analyses confirmed the reliability of these results.Discussion: This study highlights a complex bidirectional relationship between brain functional networks and endometriosis. Increased activity in specific networks may protect against or predispose individuals to certain subtypes of endometriosis. Conversely, endometriosis also can influence brain connectivity, potentially contributing to cognitive and emotional symptoms.Keywords: endometriosis, brain functional networks, resting-state fMRI, Mendelian randomizationhttps://www.dovepress.com/causal-links-between-brain-functional-networks-and-endometriosis-a-lar-peer-reviewed-fulltext-article-IJWHendometriosisbrain functional networksresting-state fmrimendelian randomization
spellingShingle Feng S
Wang Y
Liu S
Zhang Y
He L
Causal Links Between Brain Functional Networks and Endometriosis: A Large-Scale Genetic-Driven Observational Study
International Journal of Women's Health
endometriosis
brain functional networks
resting-state fmri
mendelian randomization
title Causal Links Between Brain Functional Networks and Endometriosis: A Large-Scale Genetic-Driven Observational Study
title_full Causal Links Between Brain Functional Networks and Endometriosis: A Large-Scale Genetic-Driven Observational Study
title_fullStr Causal Links Between Brain Functional Networks and Endometriosis: A Large-Scale Genetic-Driven Observational Study
title_full_unstemmed Causal Links Between Brain Functional Networks and Endometriosis: A Large-Scale Genetic-Driven Observational Study
title_short Causal Links Between Brain Functional Networks and Endometriosis: A Large-Scale Genetic-Driven Observational Study
title_sort causal links between brain functional networks and endometriosis a large scale genetic driven observational study
topic endometriosis
brain functional networks
resting-state fmri
mendelian randomization
url https://www.dovepress.com/causal-links-between-brain-functional-networks-and-endometriosis-a-lar-peer-reviewed-fulltext-article-IJWH
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