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Das Bhowmik, A. and Sarkar, Kanyakumarika and Ghosh, P. and Das, M. and Bhaduri, N. and Sarkar, Keka and Ray, A. and Sinha, S. and Mukhopadhyay, Kanchan (2017) Significance of Dopaminergic Gene Variants in the Male Biasness of ADHD. Journal of Attention Disorders, 21 (3). pp. 200-208. ISSN 1087-0547

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Objective: ADHD is frequently detected in boys though there is no established cause. One possibility is that genes predisposing to ADHD have sexually dimorphic effects. With an aim to find out the reason for this male biasness, contribution of 14 functional polymorphisms was investigated in ADHD subjects. Method: Genomic DNA of probands, their parents, and ethnically matched controls was subjected to analysis of single-nucleotide polymorphisms and variable number of tandem repeats (VNTRs). Results: Case-control analysis revealed significant higher occurrence of DAT1 intron 8 VNTR 5R allele (p = .028), DBH rs1108580 A allele (p = .027), and MAOA-u VNTR-rs6323 3R-T haplotype (p = .007) in male probands. Family-based analysis showed significant preferential transmission of Dopamine receptor D4 exon 3 VNTR-rs1800955 7R-T haplotype from parents to male probands (p = .008). Interaction between DBH gene variants and low enzymatic activity was also noticed, especially in male probands. Conclusion: Data obtained may partly answer the male biasness of ADHD.

Item Type: Article
Depositing User: Dr P Divakar
Date Deposited: 17 Feb 2017 07:44
Last Modified: 28 Feb 2017 02:25
URI: http://cdfd.sciencecentral.in/id/eprint/771

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