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Zhonghua Liu Xing Bing Xue Za Zhi ; 26(9): 665-8, 2005 Sep.
Article in Chinese | MEDLINE | ID: mdl-16471213

ABSTRACT

OBJECTIVE: To study the association between reduced folate carrier gene (RFC1 A80G) polymorphism and the risk for child with neural tube defects (NTDs), and to provide epidemiological evidence for the existence of NTDs genetic marker. METHODS: RFC1 (A80G) genotypes were detected using RFLP-PCR for blood DNA of 104 families with NTDs-affected children and 100 control families with no history of child-affected birth defects. Case-control study and transmission/disequilibrium test(TDT) for the RFC1 genotype of NTDs pedigree were carried out. RESULTS: The G allele frequency of children with NTDs was higher than that of controls when compared to A allele( OR = 1. 64, 95% CI :1.08-2.49). The offspring of the GG genotype were associated with a 2.56-fold increased risk of NTDs when compared to the AA genotype (OR = 2.56, 95% CI: 1.04-6.36) in our study population. There was evidence of association between G allele and the risk of parent having a child with NTDs (OR = 1.56, 95% CI: 1.07-2.28) in the TDT analysis. CONCLUSION: Our findings indicated that there was potential association between offspring RFC1 GG genotype and the risk of NTDs, and the G allele was a possible susceptible gene marker for an increased NTDs risk in the Chinese population.


Subject(s)
Membrane Transport Proteins/genetics , Neural Tube Defects/genetics , Parents , Polymorphism, Genetic , Case-Control Studies , Child , Child, Preschool , Female , Gene Frequency , Genetic Predisposition to Disease , Genotype , Humans , Infant , Male , Reduced Folate Carrier Protein
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