| Abstract [eng] |
The incidence of cleft lip and (or) palate (CL/P) varies from 0.4 to 2.0 in 1000 live births across populations. More and more CL/P candidate loci are being confirmed using novel genome-wide methods of molecular genetics and tools of statistical analysis. The aim of this study was to identify the alleles of the candidate genes for cleft lip with or without cleft palate and isolated cleft palate in the Lithuanian patient group, applying the molecular genotyping of the genomic markers in 42 CL/P candidate genes and association analysis using transmission disequilibrium test approach. Using families’ studies and case – control studies approach CL/P candidate genes TIMP2, BMP2, FN1 variants were confirmed for cleft lip with or without cleft palate and COL11A1, COL11A2, COL2A1 for cleft palate only in the population of Lithuania. Estimating the association analysis results of the CL/P patients of Lithuania, Latvia and Estonia, FGF1, TIMP2 were identified as candidate genes for cleft lip with or without cleft palate and COL2A1, COL11A2 for isolated cleft palate in the North East European populations. Different genomic risk variants have influence for cleft lip with or without cleft palate and for cleft palate only, which confirms the hypothesis of different mechanisms for these two phenotypes. |
