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ADHD and DAT1: further evidence of paternal over-transmission of risk alleles and haplotype

Hawi, Z., Kent, L., Hill, M., Anney, Richard, Brookes, K. J., Barry, E., Franke, B., Banaschewski, T., Buitelaar, J., Ebstein, R., Miranda, A., Oades, R. D., Roeyers, H., Rothenberger, A., Sergeant, J., Sonuga-Barke, E. J. S., Steinhausen, H. -C., Faraone, S. V., Asherson, P. and Gill, M. 2010. ADHD and DAT1: further evidence of paternal over-transmission of risk alleles and haplotype. American Journal of Medical Genetics Part B: Neuropsychiatric Genetics 153B (1) , pp. 97-102. 10.1002/ajmg.b.30960

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Abstract

We [Hawi et al. (2005); Am J Hum Genet 77:958-965] reported paternal over-transmission of risk alleles in some ADHD-associated genes. This was particularly clear in the case of the DAT1 3'-UTR VNTR. In the current investigation, we analyzed three new sample comprising of 1,248 ADHD nuclear families to examine the allelic over-transmission of DAT1 in ADHD. The IMAGE sample, the largest of the three-replication samples, provides strong support for a parent of origin effect for allele 6 and the 10 repeat allele (intron 8 and 3'-UTR VNTR, respectively) of DAT1. In addition, a similar pattern of over-transmission of paternal risk haplotypes (constructed from the above alleles) was also observed. Some support is also derived from the two smaller samples although neither is independently significant. Although the mechanism driving the paternal over-transmission of the DAT risk alleles is not known, these finding provide further support for this phenomenon.

Item Type: Article
Date Type: Publication
Status: Published
Schools: MRC Centre for Neuropsychiatric Genetics and Genomics (CNGG)
Medicine
Subjects: R Medicine > R Medicine (General)
Uncontrolled Keywords: ADHD;DAT1;parent of origin effect;VNTR
Publisher: Wiley-Blackwell
ISSN: 1552-485X
Last Modified: 04 Jun 2017 08:48
URI: http://orca.cf.ac.uk/id/eprint/85249

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