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Variants in the fetal genome near pro-inflammatory cytokine genes on 2q13 associate with gestational duration
Journal article   Open access   Peer reviewed

Variants in the fetal genome near pro-inflammatory cytokine genes on 2q13 associate with gestational duration

Xueping Liu, Dorte Helenius, Kelli K Ryckman, Jeffrey C Murray, Line Skotte, Robin N Beaumont, Matthias Wielscher, Frank Geller, Julius Juodakis, Anubha Mahajan, …
Nature communications, Vol.10(1), 3927
09/02/2019
DOI: 10.1038/s41467-019-11881-8
PMCID: PMC6718389
PMID: 31477735
url
https://doi.org/10.1038/s41467-019-11881-8View
Published (Version of record) Open Access

Abstract

The duration of pregnancy is influenced by fetal and maternal genetic and non-genetic factors. Here we report a fetal genome-wide association meta-analysis of gestational duration, and early preterm, preterm, and postterm birth in 84,689 infants. One locus on chromosome 2q13 is associated with gestational duration; the association is replicated in 9,291 additional infants (combined P = 3.96 × 10 ). Analysis of 15,588 mother-child pairs shows that the association is driven by fetal rather than maternal genotype. Functional experiments show that the lead SNP, rs7594852, alters the binding of the HIC1 transcriptional repressor. Genes at the locus include several interleukin 1 family members with roles in pro-inflammatory pathways that are central to the process of parturition. Further understanding of the underlying mechanisms will be of great public health importance, since giving birth either before or after the window of term gestation is associated with increased morbidity and mortality.
Pregnancy Chromosomes, Human, Pair 2 - genetics Cytokines - genetics Female Fetus - metabolism Genome, Human - genetics Genome-Wide Association Study Gestational Age Humans Infant, Newborn Polymorphism, Single Nucleotide Premature Birth - genetics

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