title: Contribution of MSX1 variants to the risk of non-syndromic cleft lip and palate in a Malay population.
abstract: Oral clefts are clinically and genetically heterogeneous disorders that are influenced by both genetic and environmental factors. The present family-based association study investigated the role of the MSX1 and TGFB3 genes in the etiology of non-syndromic oral cleft in a Malay population. No transmission distortion was found in the transmission disequilibrium analysis for either MSX1-CA or TGFB3-CA intragenic markers, whereas TGFB3-CA exhibited a trend to excess maternal transmission. In sequencing the MSX1 coding regions in 124 patients with oral cleft, five variants were found, including three known variants (A34G, G110G and P147Q) and two novel variants (M37L and G267A). The P147Q and M37L variants were not observed in 200 control chromosomes, whereas G267A was found in one control sample, indicating a very rare polymorphic variant. Furthermore, the G110G variant displayed a significant association between patients with non-syndromic cleft lip, with or without cleft palate, and normal controls (P=0.001, odds ratio=2.241, 95% confidence interval, 1.357-3.700). Therefore, these genetic variants may contribute, along with other genetic and environmental factors, to this condition.
authors.affiliation: Human Genome Center, School of Medical Sciences, Universiti Sains Malaysia, Kubang Kerian, Kelantan, Malaysia.
authors.forename: Iman
authors.initials: I
authors.lastname: Salahshourifar
authors.forename: Ahmad Sukari
authors.initials: AS
authors.lastname: Halim
authors.forename: Wan Azman
authors.initials: WA
authors.lastname: Wan Sulaiman
authors.forename: Bin Alwi
authors.initials: BA
authors.lastname: Zilfalil
mesh_terms: D000483:Alleles; D000595:Amino Acid Sequence; D044466:Asian People / Q000235:genetics; D016022:Case-Control Studies; D002971:Cleft Lip / Q000235:genetics*; D002972:Cleft Palate / Q000235:genetics*; D056726:Genetic Association Studies; D020022:Genetic Predisposition to Disease; D006801:Humans; D015810:Linkage Disequilibrium; D051957:MSX1 Transcription Factor / Q000235:genetics*; D008296:Malaysia; D008969:Molecular Sequence Data; D009154:Mutation; D016415:Sequence Alignment; D053782:Transforming Growth Factor beta3 / Q000235:genetics
chemical_list: D051957:MSX1 Transcription Factor; D053782:Transforming Growth Factor beta3