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Genome-wide interaction studies identify sex-specific risk alleles for nonsyndromic orofacial clefts.


ABSTRACT: Nonsyndromic cleft lip with or without cleft palate (NSCL/P) is the most common craniofacial birth defect in humans and is notable for its apparent sexual dimorphism where approximately twice as many males are affected as females. The sources of this disparity are largely unknown, but interactions between genetic and sex effects are likely contributors. We examined gene-by-sex (G?×?S) interactions in a worldwide sample of 2,142 NSCL/P cases and 1,700 controls recruited from 13 countries. First, we performed genome-wide joint tests of the genetic (G) and G?×?S effects genome-wide using logistic regression assuming an additive genetic model and adjusting for 18 principal components of ancestry. We further interrogated loci with suggestive results from the joint test ( p?

SUBMITTER: Carlson JC 

PROVIDER: S-EPMC6185762 | biostudies-literature | 2018 Oct

REPOSITORIES: biostudies-literature

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