Related Experiment Video
Updated: Jun 27, 2026

Modifying Levels of Maternal Dietary Folic Acid or Choline to Study the Impact of Deficiencies on Offspring Health Outcomes
Published on: June 28, 2024
The joint association between F5 gene polymorphisms and maternal smoking during pregnancy on preterm delivery
Yunxian Yu1, Hui-Ju Tsai, Xin Liu
1Mary Ann and J. Milburn Smith Child Health Research Program, Children's Memorial Hospital and Children's Memorial Research Center, Chicago, IL, USA.
Abstract:
Factor V (F5) genetic variants and maternal smoking during pregnancy individually has been associated with increased risk of preterm delivery (PTD). We hypothesize that F5 gene and maternal smoking may synergistically increase the risk of PTD. Three single nucleotide polymorphisms (SNPs) in F5 gene (rs6019, rs2213869 and rs6022) were genotyped in 542 mothers with PTD and 1,141 mothers with term deliveries at the Boston Medical Center. The individual and interactive effects of F5 SNPs and maternal smoking on PTD and gestational age were examined, respectively. The results suggested that maternal smoking, three F5 SNPs and F5 haplotype were individually associated with PTD and gestational age. More importantly, we found significant interactions between the two F5 SNPs (rs6019 and rs6022) and maternal smoking on PTD and gestational age. Compared with non-smoking mothers carrying rs6019 GG genotype, persistently smoking mothers carrying genotypes GC or CC were associated with significantly increased risk of PTD (OR(95% CI): 2.1(1.2-3.6) for GC; 5.7(2.1-15.0) for CC; p-interaction = 0.02). A significant interaction was also observed for gestational age. Similar pattern of interactions was found between rs6022 and maternal smoking on PTD. In summary, our data indicated that F5 gene variants and maternal smoking may synergistically increase the risk of PTD.
Related Concept Videos
Teratogenicity
Development of the Oral Microbiota
Pharmacogenetics of Drug Targets: β₂-Adrenergic Receptors, Apo E, Thymidylate Synthase
Pharmacogenetic Phenotypes: Alterations in Pharmacokinetics, Drug Targets and Biologic Milieu
Genomic Imprinting and Inheritance
The expression of some genes depends on which parent passed the gene to the offspring, through a phenomenon known as...
Diabetes Mellitus: Type 2 and Gestational