Genetic effect of transforming growth factor alpha gene variants on the risk of nonsyndromic cleft lip with or without palate in korean populations

The Cleft Palate-craniofacial Journal : Official Publication of the American Cleft Palate-Craniofacial Association
Bo-Mi KimSeung-Hak Baek

Abstract

To identify the contribution of TGFA gene variants to the risk of nonsyndromic cleft lip with or without palate (NS-CL±P). The samples were from 142 Korean NS-CL±P families and 119 control parents having nonaffected children. Minor allele frequency, heterozygosity, and χ(2) test for Hardy-Weinberg equilibrium were calculated for each of 10 selected single-nucleotide polymorphisms (SNPs). Ten SNPs were used to examine the association of case-parent trios with the transmission disequilibrium test (TDT) and conditional logistic regression models (CLRMs). Both allelic and genotypic TDTs for individual SNPs and sliding windows of haplotypes consisting of two to five SNPs were tested using family- and haplotype-based association test programs. Genotypic odd ratios (GORs) were obtained from CLRMs using STATA software. The parent-of-origin effect was evaluated for 10 SNPs, and a comparison between 218 case parents and 119 control parents was performed to investigate paternal and maternal ORs. Family-based TDT and haplotype analysis exhibited no statistical significance, but a relatively meaningful association was shown with rs3771497 (all P < .05; two SNPs, rs3771497 and rs3755377; five SNPs, rs3771497, rs3755377, rs3771485, rs11466212...Continue Reading

References

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Citations

Sep 6, 2018·Genetic Testing and Molecular Biomarkers·Ebru Derelli TufekciHakki Tastan

Related Concepts

Alleles
Cleft Lip
Cleft Palate, Isolated
Variation (Genetics)
Nested Case-Control Studies
Transforming Growth Factor alpha
Genetic Predisposition to Disease
Single Nucleotide Polymorphism
Alleles
Cleft Lip

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