An Appraisal of the Role of Previously Reported Risk Factors in the Age at Menopause Using Mendelian Randomization

ObjectiveMenopause at a young age is associated with many health problems in women, including osteoporosis, depressive symptoms, coronary disease, and stroke. Many traditional observational studies have reported some potential risk factors for early menopause but have drawn different conclusions. Th...

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Main Authors: Xiaohong Ding, Rong Tang, Jinjin Zhu, Minzhi He, Huasong Huang, Zhenlang Lin, Jianghu Zhu
Format: Article
Language:English
Published: Frontiers Media S.A. 2020-05-01
Series:Frontiers in Genetics
Subjects:
Online Access:https://www.frontiersin.org/article/10.3389/fgene.2020.00507/full
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author Xiaohong Ding
Xiaohong Ding
Rong Tang
Rong Tang
Jinjin Zhu
Jinjin Zhu
Minzhi He
Minzhi He
Huasong Huang
Huasong Huang
Zhenlang Lin
Jianghu Zhu
Jianghu Zhu
author_facet Xiaohong Ding
Xiaohong Ding
Rong Tang
Rong Tang
Jinjin Zhu
Jinjin Zhu
Minzhi He
Minzhi He
Huasong Huang
Huasong Huang
Zhenlang Lin
Jianghu Zhu
Jianghu Zhu
author_sort Xiaohong Ding
collection DOAJ
description ObjectiveMenopause at a young age is associated with many health problems in women, including osteoporosis, depressive symptoms, coronary disease, and stroke. Many traditional observational studies have reported some potential risk factors for early menopause but have drawn different conclusions. This inconsistency can be attributed mainly to unmodified confounding factors. Identifying the factors causally associated with age at menopause is important for early intervention in women with abnormal menopause timing, and for improving the quality of life for postmenopausal women. This study aims to appraise whether the previously reported risk factors are causally associated with early age at natural menopause (ANM) susceptibility.MethodsWe used Mendelian randomization, a statistical method wherein genetic variants are used to determine whether an observational association between a risk factor and an outcome is consistent with a causal effect.ResultsWomen with earlier age at menarche (β = 0.34, se = 0.16, p = 0.035), lower education level (β = 1.19, se = 0.41, p = 0.004) and higher body mass index (β = −0.05, se = 0.02, p = 0.027) had greater risk for early ANM. The causal link between early age at menarche and early ANM was replicated using ReproGen consortium data (β = 0.23, se = 0.07, p = 0.001). However, a current smoking habit, one of previously reported risk factors, was less likely to be correlated causally with early ANM, suggesting that previous observational studies may not have sufficiently adjusted for confounders.ConclusionOur results help to identify the risk factors of ANM via a genetics approach and future research into the biological mechanism could further help with targeted prevention for early menopause.
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spelling doaj.art-ca90d25dfc804429aced92c1f2b97e9f2022-12-22T00:05:07ZengFrontiers Media S.A.Frontiers in Genetics1664-80212020-05-011110.3389/fgene.2020.00507529668An Appraisal of the Role of Previously Reported Risk Factors in the Age at Menopause Using Mendelian RandomizationXiaohong Ding0Xiaohong Ding1Rong Tang2Rong Tang3Jinjin Zhu4Jinjin Zhu5Minzhi He6Minzhi He7Huasong Huang8Huasong Huang9Zhenlang Lin10Jianghu Zhu11Jianghu Zhu12Department of Pediatrics, The Second Affiliated Hospital of Wenzhou Medical University, Wenzhou, ChinaThe First Clinical Medical School, Wenzhou Medical University, Wenzhou, ChinaDepartment of Pediatrics, The Second Affiliated Hospital of Wenzhou Medical University, Wenzhou, ChinaThe Second Clinical Medical School, Wenzhou Medical University, Wenzhou, ChinaDepartment of Pediatrics, The Second Affiliated Hospital of Wenzhou Medical University, Wenzhou, ChinaThe Second Clinical Medical School, Wenzhou Medical University, Wenzhou, ChinaDepartment of Pediatrics, The Second Affiliated Hospital of Wenzhou Medical University, Wenzhou, ChinaThe Second Clinical Medical School, Wenzhou Medical University, Wenzhou, ChinaDepartment of Pediatrics, The Second Affiliated Hospital of Wenzhou Medical University, Wenzhou, ChinaThe Second Clinical Medical School, Wenzhou Medical University, Wenzhou, ChinaDepartment of Pediatrics, The Second Affiliated Hospital of Wenzhou Medical University, Wenzhou, ChinaDepartment of Pediatrics, The Second Affiliated Hospital of Wenzhou Medical University, Wenzhou, ChinaThe Second Clinical Medical School, Wenzhou Medical University, Wenzhou, ChinaObjectiveMenopause at a young age is associated with many health problems in women, including osteoporosis, depressive symptoms, coronary disease, and stroke. Many traditional observational studies have reported some potential risk factors for early menopause but have drawn different conclusions. This inconsistency can be attributed mainly to unmodified confounding factors. Identifying the factors causally associated with age at menopause is important for early intervention in women with abnormal menopause timing, and for improving the quality of life for postmenopausal women. This study aims to appraise whether the previously reported risk factors are causally associated with early age at natural menopause (ANM) susceptibility.MethodsWe used Mendelian randomization, a statistical method wherein genetic variants are used to determine whether an observational association between a risk factor and an outcome is consistent with a causal effect.ResultsWomen with earlier age at menarche (β = 0.34, se = 0.16, p = 0.035), lower education level (β = 1.19, se = 0.41, p = 0.004) and higher body mass index (β = −0.05, se = 0.02, p = 0.027) had greater risk for early ANM. The causal link between early age at menarche and early ANM was replicated using ReproGen consortium data (β = 0.23, se = 0.07, p = 0.001). However, a current smoking habit, one of previously reported risk factors, was less likely to be correlated causally with early ANM, suggesting that previous observational studies may not have sufficiently adjusted for confounders.ConclusionOur results help to identify the risk factors of ANM via a genetics approach and future research into the biological mechanism could further help with targeted prevention for early menopause.https://www.frontiersin.org/article/10.3389/fgene.2020.00507/fullendocrinereproductionmenopausemenarchemendelian randomization
spellingShingle Xiaohong Ding
Xiaohong Ding
Rong Tang
Rong Tang
Jinjin Zhu
Jinjin Zhu
Minzhi He
Minzhi He
Huasong Huang
Huasong Huang
Zhenlang Lin
Jianghu Zhu
Jianghu Zhu
An Appraisal of the Role of Previously Reported Risk Factors in the Age at Menopause Using Mendelian Randomization
Frontiers in Genetics
endocrine
reproduction
menopause
menarche
mendelian randomization
title An Appraisal of the Role of Previously Reported Risk Factors in the Age at Menopause Using Mendelian Randomization
title_full An Appraisal of the Role of Previously Reported Risk Factors in the Age at Menopause Using Mendelian Randomization
title_fullStr An Appraisal of the Role of Previously Reported Risk Factors in the Age at Menopause Using Mendelian Randomization
title_full_unstemmed An Appraisal of the Role of Previously Reported Risk Factors in the Age at Menopause Using Mendelian Randomization
title_short An Appraisal of the Role of Previously Reported Risk Factors in the Age at Menopause Using Mendelian Randomization
title_sort appraisal of the role of previously reported risk factors in the age at menopause using mendelian randomization
topic endocrine
reproduction
menopause
menarche
mendelian randomization
url https://www.frontiersin.org/article/10.3389/fgene.2020.00507/full
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