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17. Interaction between the SLC19A1 gene and maternal first trimester fever on offspring neural tube defects.

Author

Pei L, Zhu H, Ye R, Wu J, Liu J, Ren A, Li Z, and Zheng X

Subjects
Adult, Case-Control Studies, China epidemiology, Female, Genetic Predisposition to Disease, Genotype, Humans, Male, Polymerase Chain Reaction, Polymorphism, Restriction Fragment Length, Pregnancy, Prognosis, Fever genetics, Gene-Environment Interaction, Neural Tube Defects genetics, Polymorphism, Genetic genetics, Pregnancy Trimester, First, Reduced Folate Carrier Protein genetics
Abstract

Background: Many studies have indicated that the reduced folate carrier gene (SLC19A1) is associated with an increased risk of neural tube defects (NTDs). However, the interaction between the SLC19A1 gene variant and maternal fever exposure and NTD risk remains unknown. The aim of this study was to investigate whether the risk for NTDs was influenced by the interactions between the SLC19A1 (rs1051266) variant and maternal first trimester fever., Methods: We investigated the potential interaction between maternal first trimester fever and maternal or offspring SLC19A1 polymorphism through a population-based case-control study. One hundred and four nuclear families with NTDs and 100 control families with nonmal newborns were included in the study. SLC19A1 polymorphism was determined using polymerase chain reaction-restricted fragment length polymorphism., Results: Mothers who had the GG/GA genotype and first trimester fever had an elevated risk of NTDs (adjusted odds ratio, 11.73; 95% confidence interval, 3.02-45.58) as compared to absence of maternal first trimester fever and AA genotype after adjusting for maternal education, paternal education, and age, and had a significant interactive coefficient (γ = 3.17) between maternal GG/GA genotype and first trimester fever. However, there was no interaction between offspring's GG/GA genotype and maternal first trimester fever (the interactive coefficient γ = 0.97) after adjusting for confounding factors., Conclusion: Our findings suggested that the risk of NTDs was potentially influenced by a gene-environment interaction between maternal SLC19A1 rs1051266 GG/GA genotype and first trimester fever. Maternal GG/GA genotype may strengthen the effect of maternal fever exposure on NTD risk in this Chinese population., (© 2014 Wiley Periodicals, Inc.)

Published
2015
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