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Title: Mid-pregnancy maternal blood nitric oxide-related gene and miRNA expression are associated with preterm birth.

Authors: Manuck, Tracy A; Eaves, Lauren A; Rager, Julia E; Fry, Rebecca C

Published In Epigenomics, (2021 05)

Abstract: Aim: The nitric oxide (NO) pathway modulates inflammation and may influence birth timing. Patients & methods: Case-control analysis of 136 pregnant women with RNA obtained <28 weeks; n = 212 mRNAs and n = 108 miRNAs in the NO pathway were evaluated. NO-pathway mRNA and miRNA transcript counts in women delivering preterm versus at term were compared, miRNA-mRNA expression levels correlated and prediction models generated. Results: Fourteen genes were differentially expressed in women delivering <37 weeks; 13/14 were also differentially expressed in those delivering <34 weeks (q <0.10) versus term births. Multiple miRNA-mRNA pairs were correlated. Models with gene expression better predicted prematurity than models with only clinical or nongenomic predictors. Conclusion: Maternal blood NO pathway-related mRNA and miRNA expression is associated with prematurity.

PubMed ID: 33890487 Exiting the NIEHS site

MeSH Terms: Adult; Case-Control Studies; Female; Humans; Infant, Newborn; MicroRNAs/blood*; Nitric Oxide*; Pregnancy; Premature Birth/genetics*; RNA, Messenger/blood*

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