Association between C677T and A1298C MTHFR gene polymorphism and nonsyndromic orofacial clefts in the Turkish population: a case-parent study

Two common MTHFR gene polymorphisms (C677T and A1298C) have been implicated in the etiology of nonsyndromic cleft lip/palate (nsCL/P). To investigate the genotype association among nsCL/P in the Turkish population, 56 case-parent trios were recruited into the study. Genotype frequencies were...

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Main Authors: Aida Semiç-Jusufagiç, Rıfat Bircan, Özhan Çelebiler, Melike Erdim, Nurten Akarsu, Nursel H Elçioğlu
Format: Article
Language:English
Published: Hacettepe University Institute of Child Health 2012-12-01
Series:The Turkish Journal of Pediatrics
Online Access:https://turkjpediatr.org/article/view/1698
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author Aida Semiç-Jusufagiç
Rıfat Bircan
Özhan Çelebiler
Melike Erdim
Nurten Akarsu
Nursel H Elçioğlu
author_facet Aida Semiç-Jusufagiç
Rıfat Bircan
Özhan Çelebiler
Melike Erdim
Nurten Akarsu
Nursel H Elçioğlu
author_sort Aida Semiç-Jusufagiç
collection DOAJ
description Two common MTHFR gene polymorphisms (C677T and A1298C) have been implicated in the etiology of nonsyndromic cleft lip/palate (nsCL/P). To investigate the genotype association among nsCL/P in the Turkish population, 56 case-parent trios were recruited into the study. Genotype frequencies were compared to two groups of controls from the same population. A total of 46 case-parent trios were included in transmission disequilibrium test (TDT) analysis. The mothers of the study group had a higher frequency of 677TT genotype, with a three-fold increased risk of having nsCL/P offspring (odds ratio [OR]: 3.14, p=0.03). The combined 677CT/1298AC genotype was also common among these mothers (28%), but it did not reach statistical significance (OR: 2.27, p=0.07). TDT analysis for (C677T) T allele transmission did not reveal a significant association. In conclusion, mothers carrying 677TT genotype or with 677CT/1298AC combined genotype have increased risk of having nsCL/P offspring; therefore, higher periconceptional folic acid supplementation should be advised for decreasing the recurrence risk.
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publisher Hacettepe University Institute of Child Health
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spelling doaj-art-8ad7e240316e42ef92ee1f8327cd652c2025-08-20T03:01:11ZengHacettepe University Institute of Child HealthThe Turkish Journal of Pediatrics0041-43012791-64212012-12-01546Association between C677T and A1298C MTHFR gene polymorphism and nonsyndromic orofacial clefts in the Turkish population: a case-parent studyAida Semiç-Jusufagiç0Rıfat BircanÖzhan ÇelebilerMelike ErdimNurten AkarsuNursel H ElçioğluDepartment of Pediatric Genetics, Marmara University Faculty of Medicine, İstanbul. nelcioglu1@yahoo.com. Two common MTHFR gene polymorphisms (C677T and A1298C) have been implicated in the etiology of nonsyndromic cleft lip/palate (nsCL/P). To investigate the genotype association among nsCL/P in the Turkish population, 56 case-parent trios were recruited into the study. Genotype frequencies were compared to two groups of controls from the same population. A total of 46 case-parent trios were included in transmission disequilibrium test (TDT) analysis. The mothers of the study group had a higher frequency of 677TT genotype, with a three-fold increased risk of having nsCL/P offspring (odds ratio [OR]: 3.14, p=0.03). The combined 677CT/1298AC genotype was also common among these mothers (28%), but it did not reach statistical significance (OR: 2.27, p=0.07). TDT analysis for (C677T) T allele transmission did not reveal a significant association. In conclusion, mothers carrying 677TT genotype or with 677CT/1298AC combined genotype have increased risk of having nsCL/P offspring; therefore, higher periconceptional folic acid supplementation should be advised for decreasing the recurrence risk. https://turkjpediatr.org/article/view/1698
spellingShingle Aida Semiç-Jusufagiç
Rıfat Bircan
Özhan Çelebiler
Melike Erdim
Nurten Akarsu
Nursel H Elçioğlu
Association between C677T and A1298C MTHFR gene polymorphism and nonsyndromic orofacial clefts in the Turkish population: a case-parent study
The Turkish Journal of Pediatrics
title Association between C677T and A1298C MTHFR gene polymorphism and nonsyndromic orofacial clefts in the Turkish population: a case-parent study
title_full Association between C677T and A1298C MTHFR gene polymorphism and nonsyndromic orofacial clefts in the Turkish population: a case-parent study
title_fullStr Association between C677T and A1298C MTHFR gene polymorphism and nonsyndromic orofacial clefts in the Turkish population: a case-parent study
title_full_unstemmed Association between C677T and A1298C MTHFR gene polymorphism and nonsyndromic orofacial clefts in the Turkish population: a case-parent study
title_short Association between C677T and A1298C MTHFR gene polymorphism and nonsyndromic orofacial clefts in the Turkish population: a case-parent study
title_sort association between c677t and a1298c mthfr gene polymorphism and nonsyndromic orofacial clefts in the turkish population a case parent study
url https://turkjpediatr.org/article/view/1698
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