Genetic Biomarkers for Endometriosis

GWAS studies identified seven genomic regions with robust evidence for genome-wide significant association with endometriosis risk. One important question that arises is whether these genetic markers can be used to predict risk of developing endometriosis for individual women. As with most complex diseases, the effect sizes for genetic markers linked to endometriosis risk are small with odds ratios less than 1.3. If we combine information from all seven markers, we explain only 1.85% of the total phenotypic variance on the liability scale (assuming a population prevalence of endometriosis of 8%) with no predictive power for individual risk. To explore the ability of all common genetic markers to predict endometriosis risk in individuals, we conducted simulations to quantify how useful endometriosis risk prediction is given current parameters. Applying our estimate of heritability (h 2 = 0.26) from all common SNPs and assuming data were available from ~30,000 endometriosis cases, the proportion of variance explained by the risk predictor is still only ~0.08. To improve this prediction would require a far greater sample size. Current data may be useful for population-based stratification into risk categories. This can have applications in some cases such as improved efficiency of screening in breast cancer. In the future, risk prediction for endometriosis might be improved through combining genetic risk scores with clinical data, estimates of environmental effects such as DNA methylation signals, and/or better understanding of disease subtypes. Access this chapter Tax calculation will be finalised at checkout Purchases are for personal use only Similar content being viewed by others

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Acknowledgments GWM is an NHMRC Principal Research Fellow (1078399), SHL is an ARC Future Fellow (FT160100229), and the work was supported by NHMRC project grants (1026033, 1049472, 1080157). Author information Authors and Affiliations Corresponding author Editor information Editors and Affiliations Rights and permissions Copyright information © 2017 Springer International Publishing AG About this chapter Cite this chapter Lee, S.H., Sapkota, Y., Fung, J., Montgomery, G.W. (2017). Genetic Biomarkers for Endometriosis. In: D'Hooghe, T. (eds) Biomarkers for Endometriosis. Springer, Cham. https://doi.org/10.1007/978-3-319-59856-7_5 Download citation DOI: https://doi.org/10.1007/978-3-319-59856-7_5 Published: Publisher Name: Springer, Cham Print ISBN: 978-3-319-59854-3 Online ISBN: 978-3-319-59856-7 eBook Packages: MedicineMedicine (R0)