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Title: A genome-wide association study of early menopause and the combined impact of identified variants.
Authors: Perry JR,  Corre T,  Esko T,  Chasman DI,  Fischer K,  Franceschini N,  He C,  Kutalik Z,  Mangino M,  Rose LM,  Vernon Smith A,  Stolk L,  Sulem P,  Weedon MN,  Zhuang WV,  Arnold A,  Ashworth A,  Bergmann S,  Buring JE,  Burri A,  Chen C,  Cornelis MC,  Couper DJ,  Goodarzi MO,  Gudnason V,  Harris T,  Hofman A,  Jones M,  Kraft P,  Launer L,  Laven JS,  Li G,  McKnight B,  Masciullo C,  Milani L,  Orr N,  Psaty BM,  ReproGen Consortium,  Ridker PM,  Rivadeneira F,  Sala C,  Salumets A,  Schoemaker M,  Traglia M,  Waeber G,  Chanock SJ,  Demerath EW,  Garcia M,  Hankinson SE,  Hu FB,  Hunter DJ,  Lunetta KL,  Metspalu A,  Montgomery GW,  Murabito JM,  Newman AB,  Ong KK,  Spector TD,  Stefansson K,  Swerdlow AJ,  Thorsteinsdottir U,  Van Dam RM,  Uitterlinden AG,  Visser JA,  Vollenweider P,  Toniolo D,  Murray A
Journal: Hum Mol Genet
Date: 2013 Apr 1
Branches: CGR, LTG
PubMed ID: 23307926
PMC ID: PMC3596848
Abstract: Early menopause (EM) affects up to 10% of the female population, reducing reproductive lifespan considerably. Currently, it constitutes the leading cause of infertility in the western world, affecting mainly those women who postpone their first pregnancy beyond the age of 30 years. The genetic aetiology of EM is largely unknown in the majority of cases. We have undertaken a meta-analysis of genome-wide association studies (GWASs) in 3493 EM cases and 13 598 controls from 10 independent studies. No novel genetic variants were discovered, but the 17 variants previously associated with normal age at natural menopause as a quantitative trait (QT) were also associated with EM and primary ovarian insufficiency (POI). Thus, EM has a genetic aetiology which overlaps variation in normal age at menopause and is at least partly explained by the additive effects of the same polygenic variants. The combined effect of the common variants captured by the single nucleotide polymorphism arrays was estimated to account for ∼30% of the variance in EM. The association between the combined 17 variants and the risk of EM was greater than the best validated non-genetic risk factor, smoking.