Genome-wide association study of placental weight in 65,405 newborns and 113,620 parents reveals distinct and shared genetic influences between placental and fetal growth

Robin N. Beaumont, Christopher Flatley, Marc Vaudel, Xiaoping Wu, Jing Chen, Gunn-Helen Moen, Line Skotte, Øyvind Helgeland, Pol Sole-Navais, Karina Banasik, Clara Albinana, Justina Kronkainen, Joao Fadista, Sara Elizabeth Stinson, Katerina Trajanoska, Carol A Wang, David Westergaard, Sundararajan Srinivasan, Carlos Sanchez Soriano, Jose Ramon BilbaoCatherine Allard, Marika Groleau, Teemu Kuulasmaa, Daniel J. Leirer, Frederique White, Pierre-Etienne Jacques, Haoxiang Cheng, Ke Hao, Ole A Andersen, Bjørn Olav Åsvold, Mustafa Atalay, Laxmi Bhatta, Luigi Bouchard, Ben Michael Brumpton, Søren Brunak, Jonas Bybjerg-Grauholm, Cathrine Ebbing, Paul Elliott, Line Engelbrechtsen, Christian Erikstrup, Marisa Estarlich, Stephen Franks, Romy Gaillard, Frank Geller, Jakob Grove, David M Hougaard, Kajantie Eero, Camilla S. Morgen, Ellen A Nohr, Mette Nyegaard, Colin N. A. Palmer, Ole Birger Pederson, Fernando Rivadeneira, Sylvain Sebert, Beverley M Shields, Camilla Stoltenberg, Ida Surakka, Lise Wegner Thorner, Henrik Ullum, Marja Vaarasmaki, Bjarni J Vilhjálmsson, Cristen J. Willer, Timo A Lakka, Dorte Gybel-Brask, Mariona Bustamante, Torben Hansen, Ewan R. Pearson, Rebecca M Reynolds, Sisse Rye Ostrowski, Craig E. Pennell, Vincent W V Jaddoe, Janine F. Felix, Andrew T Hattersley, Mads Melbye, Deborah A. Lawlor, Kristian Hveem, Thomas Werge, Henriette Svarre Nielsen, Per Magnus, David M Evans, Bo Jacobsson, Marjo-Riitta Järvelin, Ge Zhang, Marie-France Hivert, Stefan Johansson, Rachel M Freathy, Bjarke Feenstra, Pal R. Njolstad

Research output: Contribution to journalArticlepeer-review

Abstract / Description of output


A well-functioning placenta is essential for fetal and maternal health throughout pregnancy. Using placental weight as a proxy for placental growth, we report genome-wide association analyses in the fetal (n = 65,405), maternal (n = 61,228) and paternal (n = 52,392) genomes, yielding 40 independent association signals. Twenty-six signals are classified as fetal, four maternal and three fetal and maternal. A maternal parent-of-origin effect is seen near KCNQ1. Genetic correlation and colocalization analyses reveal overlap with birth weight genetics, but 12 loci are classified as predominantly or only affecting placental weight, with connections to placental development and morphology, and transport of antibodies and amino acids. Mendelian randomization analyses indicate that fetal genetically mediated higher placental weight is causally associated with preeclampsia risk and shorter gestational duration. Moreover, these analyses support the role of fetal insulin in regulating placental weight, providing a key link between fetal and placental growth.
Original languageEnglish
JournalNature Genetics
Publication statusPublished - 5 Oct 2023

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