J Korean Med Sci.
2013 Apr;28(4):522-526. 10.3346/jkms.2013.28.4.522.
Association between MSX1 SNPs and Nonsyndromic Cleft Lip with or without Cleft Palate in the Korean Population
- Affiliations
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- 1Department of Orthodontics, School of Dentistry, Seoul National University, Seoul, Korea.
- 2Department of Orthodontics, The Institute of Oral Health Science, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea.
- 3Department of Medical Genetics, Hallym University College of Medicine, Chuncheon, Korea.
- 4Department of Orthodontics, School of Dentistry, Dental Research Institute, Seoul National University, Seoul, Korea. drwhite@unitel.co.kr
- KMID: 1786958
- DOI: http://doi.org/10.3346/jkms.2013.28.4.522
Abstract
- The purpose of this study was to investigate the contribution of MSX1 gene to the risk of nonsyndromic cleft lip with or without cleft palate (NS-CL +/- P) in the Korean population. The samples consisted of 142 NS-CL +/- P families (9 with cleft lip, 26 with cleft lip and alveolus, and 107 with cleft lip and palate; 76 trios and 66 dyads). Three single nucleotide polymorphisms (SNPs: rs3821949, rs12532, and rs4464513) were tested for association with NS-CL +/- P case-parent trios using transmission disequilibrium test (TDT) and conditional logistic regression models (CLRMs). Minor allele frequency, heterozygosity, chi2 test for Hardy-Weinberg equilibrium, and pairwise linkage disequilibrium (LD) at each SNP were computed. The family- and haplotype-based association test programs were used to perform allelic and genotypic TDTs for individual SNPs and to fabricate sliding windows of haplotypes. Genotypic odds ratios (GORs) were obtained from CLRMs using R software. Although the family-based TDT indicated a meaningful association for rs3821949 (P = 0.028), the haplotype analysis did not reveal any significant association with rs3821949, rs12532, or rs4464513. The A allele at rs3821949 had a significant increased risk of NS-CL +/- P (GOR, 1.64; 95% confidence interval,1.03-2.63; P = 0.038, additive model). A positive association is suggested between MSX1 rs3821949 and NS-CL +/- P in the Korean population.
MeSH Terms
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Alleles
Asian Continental Ancestry Group/*genetics
Cleft Lip/*genetics
Cleft Palate/*genetics
Female
Gene Frequency
Genotype
Haplotypes
Humans
Linkage Disequilibrium
Logistic Models
MSX1 Transcription Factor/*genetics
Male
Odds Ratio
*Polymorphism, Single Nucleotide
Republic of Korea
Risk Factors
Software
MSX1 Transcription Factor
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