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6714246 
Journal Article 
Methylenetetrahydrofolate reductase gene polymorphisms in children with attention deficit hyperactivity disorder 
Gokcen, C; Kocak, N; Pekgor, A 
2011 
Yes 
International Journal of Medical Sciences
ISSN: 1449-1907
EISSN: 14491907 
8 
7 
523-528 
English 
21897766 
WOS:000298011800002 
OBJECTIVE: The purpose of this study was to evaluate the relationship between 5,10- methylenetetrahydrofolate reductase (MTHFR) polymorphisms and Attention Deficit Hyperactivity Disorder (ADHD) in a sample of Turkish children.

STUDY DESIGN: MTHFR gene polymorphisms were assessed in 40 patients with ADHD and 30 healty controls. Two mutations in the MTHFR gene were investigated using polymerase chain reactions and restriction fragment length polymorphisms.

RESULTS: Although there were no statistically significant differences in genotype distributions of the C677T alleles between the ADHD and the control groups (p=0,678) but the genotypic pattern of the distributions of the A1298C alleles was different between the ADHD patients and the controls (p=0,033).

CONCLUSIONS: Preliminary data imply a possible relationship between A1298C MTHFR polymorphisms and the ADHD.