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J Perinatol. 2018 Dec 5. doi: 10.1038/s41372-018-0285-6. [Epub ahead of print]

Genetic variants associated with patent ductus arteriosus in extremely preterm infants.

Author information

1
Department of Pediatrics, University of Iowa, Iowa City, IA, USA. john-dagle@uiowa.edu.
2
Department of Pediatrics, University of Iowa, Iowa City, IA, USA.
3
Department of Genetics, University of North Carolina, Chapel Hill, NC, USA.
4
Department of Pediatrics, Duke University, Durham, NC, USA.
5
Social, Statistical and Environmental Sciences Unit, RTI International, Research Triangle Park, Durham, NC, USA.
6
Social, Statistical and Environmental Sciences Unit, RTI International, Atlanta, GA, USA.
7
Department of Pediatrics, University of Alabama at Birmingham, Birmingham, AL, USA.
8
Department of Pediatrics, Wayne State University, Detroit, MI, USA.
9
Department of Pediatrics, Yale University School of Medicine, New Haven, CT, USA.
10
Department of Pediatrics, University of Texas Medical School at Houston, Houston, TX, USA.
11
Department of Pediatrics, Emory University School of Medicine, Children's Healthcare of Atlanta, Atlanta, GA, USA.

Abstract

OBJECTIVE:

Patent ductus arteriosus (PDA) is a commonly observed condition in preterm infants. Prior studies have suggested a role for genetics in determining spontaneous ductal closure. Using samples from a large neonatal cohort we tested the hypothesis that common genetic variations are associated with PDA in extremely preterm infants.

STUDY DESIGN:

Preterm infants (nā€‰=ā€‰1013) enrolled at NICHD Neonatal Research Network sites were phenotyped for PDA. DNA was genotyped for 1634 single nucleotide polymorphisms (SNPs) from candidate genes. Analyses were adjusted for ancestral eigenvalues and significant epidemiologic variables.

RESULTS:

SNPs in several genes were associated with the clinical diagnosis of PDA and with surgical ligation in extremely preterm neonates diagnosed with PDA (pā€‰<ā€‰0.01). None of the associations were significant after correction for multiple comparisons.

CONCLUSION:

We identified several common genetic variants associated with PDA. These findings may inform further studies on genetic risk factors for PDA in preterm infants.

PMID:
30518802
DOI:
10.1038/s41372-018-0285-6

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