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Title

INTERACTION EFFECT OF RSAI AND BAMHI POLYMORPHISMS OF TGFα, BMP2 AND BMP4 ON THE OCCURRENCE OF NON-SYNDROMIC CLEFT LIP AND PALATE IN IRANIAN PATIENTS

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 Start Page 248 | End Page 252

Abstract

 Background: Orofacial cleft is the most common congenital defect of the maxillofacial region. Its non-syndromic type is multi-factorial, and several genes are involved in its occurrence. This study aimed to assess the interaction effect of Rsal and BamHI POLYMORPHISMs of Transforming Growth Factor-alpha (TGF a) gene and Bone Morphogenetic Protein-2 (BMP2) and BMP4 variants on the occurrence of Non-Syndromic CLEFT LIP AND PALATE (NSCLP) in the Iranian population.Methods: This case-control study was conducted on 120 children with NSCLP and 215 healthy children. Genotyping of the TGFA/BamHI (rs11466297), TGFA/RsaI (rs37322-48), BMP4 (rs17563) and BMP2 (rs235768) was performed by Polymerase Chain Reaction (PCR) and Restriction Fragment Length POLYMORPHISM (RFLP) methods. Logistic regression was applied to determine the effective factors and the interaction effect of different variants on the occurrence of NSCLP.Results: Gender of patients had no significant association with the occurrence of NSCLP (p=0.335). Multiple logistic regression showed that the interaction effect of the aforementioned POLYMORPHISMs on the occurrence of NSCLP was not statistically significant (p=1.000).Conclusion: Although the individual effect of each of the BMP4, BMP2, RsaI and BamHI variants on the occurrence of NSCLP in the Iranian population has been previously confirmed, their interaction does not play a role in this respect.

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