Logo image
Paternal genetic variants and risk of obstructive heart defects: A parent-of-origin approach
Journal article   Open access   Peer reviewed

Paternal genetic variants and risk of obstructive heart defects: A parent-of-origin approach

Jenil Patel, Emine Bircan, Xinyu Tang, Mohammed Orloff, Charlotte A Hobbs, Marilyn L Browne, Lorenzo D Botto, Richard H Finnell, Mary M Jenkins, Andrew Olshan, …
PLoS genetics, Vol.17(3), pp.e1009413-e1009413
03/2021
DOI: 10.1371/journal.pgen.1009413
PMCID: PMC7971842
PMID: 33684136
url
https://doi.org/10.1371/journal.pgen.1009413View
Published (Version of record) Open Access

Abstract

Previous research on risk factors for obstructive heart defects (OHDs) focused on maternal and infant genetic variants, prenatal environmental exposures, and their potential interaction effects. Less is known about the role of paternal genetic variants or environmental exposures and risk of OHDs. We examined parent-of-origin effects in transmission of alleles in the folate, homocysteine, or transsulfuration pathway genes on OHD occurrence in offspring. We used data on 569 families of liveborn infants with OHDs born between October 1997 and August 2008 from the National Birth Defects Prevention Study to conduct a family-based case-only study. Maternal, paternal, and infant DNA were genotyped using an Illumina Golden Gate custom single nucleotide polymorphism (SNP) panel. Relative risks (RR), 95% confidence interval (CI), and likelihood ratio tests from log-linear models were used to estimate the parent-of-origin effect of 877 SNPs in 60 candidate genes in the folate, homocysteine, and transsulfuration pathways on the risk of OHDs. Bonferroni correction was applied for multiple testing. We identified 3 SNPs in the transsulfuration pathway and 1 SNP in the folate pathway that were statistically significant after Bonferroni correction. Among infants who inherited paternally-derived copies of the G allele for rs6812588 in the RFC1 gene, the G allele for rs1762430 in the MGMT gene, and the A allele for rs9296695 and rs4712023 in the GSTA3 gene, RRs for OHD were 0.11 (95% CI: 0.04, 0.29, P = 9.16x10-7), 0.30 (95% CI: 0.17, 0.53, P = 9.80x10-6), 0.34 (95% CI: 0.20, 0.57, P = 2.28x10-5), and 0.34 (95% CI: 0.20, 0.58, P = 3.77x10-5), respectively, compared to infants who inherited maternally-derived copies of the same alleles. We observed statistically significant decreased risk of OHDs among infants who inherited paternal gene variants involved in folate and transsulfuration pathways.
Adult Alleles Cardiomyopathy, Hypertrophic, Familial - genetics Chromosome Mapping Female Genetic Predisposition to Disease Genetic Variation Genotype Heart Defects, Congenital - epidemiology Heart Defects, Congenital - genetics Heart Defects, Congenital - metabolism Humans Inheritance Patterns Male Middle Aged Odds Ratio Phenotype Polymorphism, Single Nucleotide Risk Assessment Young Adult

Details

Metrics

Logo image