Variants in ADCY5 and near CCNL1 are associated with fetal growth and birth weight

Genetic Investigation of ANthropometric Traits (GIANT) Consortium, Rachel M Freathy, Dennis O Mook-Kanamori, Ulla Sovio, Inga Prokopenko, Nicholas J Timpson, Diane J Berry, Nicole M Warrington, Elisabeth Widen, Jouke Jan Hottenga, Marika Kaakinen, Leslie A Lange, Jonathan P Bradfield, Marjan Kerkhof, Julie A Marsh, Reedik Mägi, Chih-Mei Chen, Helen N Lyon, Mirna Kirin, Linda S AdairYurii S Aulchenko, Amanda J Bennett, Judith B Borja, Nabila Bouatia-Naji, Pimphen Charoen, Lachlan J M Coin, Diana L Cousminer, Eco J C de Geus, Panos Deloukas, Paul Elliott, David M Evans, Philippe Froguel, Beate Glaser, Christopher J Groves, Anna-Liisa Hartikainen, Neelam Hassanali, Joel N Hirschhorn, Albert Hofman, Jeff M P Holly, Elina Hyppönen, Stavroula Kanoni, Bridget A Knight, Jaana Laitinen, Cecilia M Lindgren, Wendy L McArdle, Paul F O'Reilly, Craig E Pennell, Dirkje S Postma, Anneli Pouta, Adaikalavan Ramasamy, James F Wilson

Research output: Contribution to journalArticlepeer-review

Abstract

To identify genetic variants associated with birth weight, we meta-analyzed six genome-wide association (GWA) studies (n = 10,623 Europeans from pregnancy/birth cohorts) and followed up two lead signals in 13 replication studies (n = 27,591). rs900400 near LEKR1 and CCNL1 (P = 2 x 10(-35)) and rs9883204 in ADCY5 (P = 7 x 10(-15)) were robustly associated with birth weight. Correlated SNPs in ADCY5 were recently implicated in regulation of glucose levels and susceptibility to type 2 diabetes, providing evidence that the well-described association between lower birth weight and subsequent type 2 diabetes has a genetic component, distinct from the proposed role of programming by maternal nutrition. Using data from both SNPs, we found that the 9% of Europeans carrying four birth weight-lowering alleles were, on average, 113 g (95% CI 89-137 g) lighter at birth than the 24% with zero or one alleles (P(trend) = 7 x 10(-30)). The impact on birth weight is similar to that of a mother smoking 4-5 cigarettes per day in the third trimester of pregnancy.
Original languageEnglish
Pages (from-to)430-435
Number of pages6
JournalNature Genetics
Volume42
Issue number5
DOIs
Publication statusPublished - 2010

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