Association of VAMP-2 and Syntaxin 1A Genes with Adult Attention Deficit Hyperactivity Disorder
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Objective The etiology of attention deficit hyperactivity disorder (ADHD) has not been entirely clarified yet. Structural and metabolicdifferences at the prefrontal striatal cerebellary system and the interaction of gene and environment are the main factors that thought toplay roles in the etiology. Genetic investigations are performed especially about the dopamine pathways and receptors. In this study; itwas aimed to investigate the association of the synaptobrevin-2 (VAMP-2) gene Ins/Del polymorphism and syntaxin 1A gene intron7 polymorphism, which take place in encoding presynaptic protein, with adult ADHD. Methods One hundred thirty-nine patients, having ADHD aging between 18 and 60 years and 106 healthy people as controls were includedinto the study. DNA samples were extracted from whole blood and genetic analysis were performed. ResultsaaA significant difference was determined between ADHD and VAMP-2 Ins/Del polymorphism and syntaxin 1A intron 7 polymorphismaccording to the control group. These polymorphisms were found not to be associated with subtypes of ADHD. Conclusion It is supposed that synaptic protein genes together with dopaminergic genes might have roles in the etiology of ADHD.
Abstract
Objective The etiology of attention deficit hyperactivity disorder (ADHD) has not been entirely clarified yet. Structural and metabolicdifferences at the prefrontal striatal cerebellary system and the interaction of gene and environment are the main factors that thought toplay roles in the etiology. Genetic investigations are performed especially about the dopamine pathways and receptors. In this study; itwas aimed to investigate the association of the synaptobrevin-2 (VAMP-2) gene Ins/Del polymorphism and syntaxin 1A gene intron7 polymorphism, which take place in encoding presynaptic protein, with adult ADHD. Methods One hundred thirty-nine patients, having ADHD aging between 18 and 60 years and 106 healthy people as controls were includedinto the study. DNA samples were extracted from whole blood and genetic analysis were performed. ResultsaaA significant difference was determined between ADHD and VAMP-2 Ins/Del polymorphism and syntaxin 1A intron 7 polymorphismaccording to the control group. These polymorphisms were found not to be associated with subtypes of ADHD. Conclusion It is supposed that synaptic protein genes together with dopaminergic genes might have roles in the etiology of ADHD.
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