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J Dent Res Dent Clin Dent Prospects. 2020;14(2): 93-96.
doi: 10.34172/joddd.2020.021
  Abstract View: 186
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Basic Research

Original Article

Association of MAPK4 and SOX1-OT gene polymorphisms with cleft lip palate in multiplex families: A genetic study

Praveen Kumar Neela 1* ORCID logo, Srinivas Reddy Gosla 2, Akhter Husain 3, Vasavi Mohan 4, Sravya Thumoju 4, Rajeshwari BV 5

1 Department of Orthodontics, Kamineni Institute of Dental Sciences, Narketpally. India
2 Department of Cranio-maxillofacial Surgery AIIMS, Rishikesh, Hyderabad, India
3 Department of Orthodontics, Yenepoya Dental College, Yenepoya University, Mangalore, India
4 Department of Genetics and Molecular Medicine, Vasavi Medical and Research Centre, Hyderabad, India
5 Surabhi Institute of Medical Sciences, Telangana, India
*Corresponding authors: Praveen Kumar Neela. Email: praveenneela@yahoo.com.

Abstract

Background. Cleft lip and palate (CLP) is a common congenital anomaly. Many genes, like MAPK4 and SOX1-OT, are associated with its etiology in different populations. High-risk markers on these genes reported in other populations were not studied in our population. Hence, the study aimed to determine the association of MAPK4 and SOX1-OT polymorphisms in CLP in multiplex families.

Methods. Based on inclusion and exclusion criteria, we selected 20 multiplex CLP families for this case‒control study, in which the affected individuals and healthy controls selected from these families were compared. Fifty subjects affected with cleft and 38 unaffected subjects were included in the study. The polymorphisms studied for the association consisted of rs726455 and rs2969972 in the genes SOX1-OT and MAPK4, respectively. DNA was isolated and sent for genotyping using the MassArray method. Plink, a whole-genome association analysis toolset, was used for statistical analysis.

Results. Both polymorphisms followed Hardy–Weinberg equilibrium. The rs726455 of SOX1-OT yielded a P-value of 0.983 and an allelic odds ratio (OR) of 0.983. For rs2969972 of MAPK4, the P-value was 0.04 (significant), and the allelic OR was 0.51. Minor allele frequency (MAF) in the unaffected subjects was more than the MAF in the affected subjects for rs2969972.

Conclusion. The results suggested that polymorphism rs726455 on SOX1-OT was not associated with familial cases of CLP. Since MAF in the unaffected subjects was more than the MAF-affected subjects, rs2969972 on MAPK4 is protective in the multiplex families.

Keywords: Cleft lip palate, Gene, Polymorphism
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Submitted: 24 Apr 2020
Accepted: 05 Jun 2020
ePublished: 17 Jun 2020
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