Genetic variation in folate metabolism is associated with the risk of conotruncal heart defects in a Chinese population

BMC Pediatrics
Xike WangLei Luo

Abstract

Conotruncal heart defects (CTDs) are a subgroup of congenital heart defects that are considered to be the most common type of birth defect worldwide. Genetic disturbances in folate metabolism may increase the risk of CTDs. We evaluated five single-nucleotide polymorphisms (SNPs) in genes related to folic acid metabolism: methylenetetrahydrofolate reductase (MTHFR C677T and A1298C), solute carrier family 19, member 1 (SLC19A1 G80A), methionine synthase (MTR A2576G), and methionine synthase reductase (MTRR A66G), as risk factors for CTDs including various types of malformation, in a total of 193 mothers with CTD-affected offspring and 234 healthy controls in a Chinese population. Logistic regression analyses revealed that subjects carrying the TT genotype of MTHFR C677T, the C allele of MTHFR A1298C, and the AA genotype of SLC19A1 G80A had significant 2.47-fold (TT vs. CC, OR [95% CI] = 2.47 [1.42-4.32], p = 0.009), 2.05-2.20-fold (AC vs. AA, 2.05 [1.28-3.21], p = 0.0023; CC vs AA, 2.20 [1.38-3.58], p = 0.0011), and 1.68-fold (AA vs. GG, 1.68 [1.02-2.70], p = 0.0371) increased risk of CTDs, respectively. Subjects carrying both variant genotypes of MTHFR A1298C and SLC19A1 G80A had a higher (3.23 [1.71-6.02], p = 0.0002) increased...Continue Reading

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Citations

May 19, 2020·International Heart Journal·Peng-Fei LiuTan Chen

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Methods Mentioned

BETA
genotyping
Assay

Software Mentioned

SPSS

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