Association study of the brain-derived neurotropic factor (BDNF) gene in attention deficit hyperactivity disorder.

Association study of the brain-derived neurotropic factor (BDNF) gene in attention deficit hyperactivity disorder. Research Abstract Details 

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Association study of the brain-derived neurotropic factor (BDNF) gene in attention deficit hyperactivity disorder. Abstract Text:

Jonghun Lee,Nancy Laurin,Jennifer Crosbie,Abel Ickowicz,Tejaswee Pathare,Molly Malone,Rosemary Tannock,James L Kennedy,Russell Schachar,Cathy L Barr,Jonghun Lee,Nancy Laurin,Jennifer Crosbie,Abel Ickowicz,Tejaswee Pathare,Molly Malone,Rosemary Tannock,James L Kennedy,Russell Schachar,Cathy L Barr,Jonghun Lee,Nancy Laurin,Jennifer Crosbie,Abel Ickowicz,Tejaswee Pathare,Molly Malone,Rosemary Tannock,James L Kennedy,Russell Schachar,Cathy L Barr,

Attention deficit hyperactivity disorder (ADHD) is a prevalent neurodevelopmental childhood psychiatric disorder. Brain-derived neurotropic factor (BDNF) has been suggested to play a role in the pathogenesis of ADHD and two family-based association studies demonstrated an association of BDNF polymorphisms with ADHD. The aim of the current study was to investigate the BDNF gene for association with ADHD in a large sample of families from Toronto. The transmission of three polymorphisms of the BDNF gene (rs6265, rs11030104, and rs2049046) was examined in 266 nuclear families ascertained through a proband with ADHD (315 affected children) using the transmission/disequilibrium test (TDT). In addition, we conducted quantitative analysis to assess the relationship between these marker alleles and the symptom dimensions of ADHD (inattention and hyperactivity/impulsivity) and cognitive measures of working memory. None of the individual marker alleles showed significant evidence of association with ADHD, dimensional symptom scores, or working memory ability in our sample of ADHD families. There was no significant evidence for biased transmission of individual haplotypes with frequency >10% (global chi(2) for these three haplotypes: chi(2) = 6.349, df = 3, P = 0.096). One uncommon haplotype (A-G-G; frequency 2.2%) showed a significant association with ADHD in the categorical (chi(2) = 5.293, df = 1, P = 0.021) and quantitative analyses (parents' rated inattention: Z = -2.504, P = 0.012; and hyperactivity/impulsivity: Z = -2.651, P = 0.008). These results should be interpreted cautiously, however, because of the low haplotype frequency. In light of the evidence for an involvement of BDNF in ADHD, further analysis of the BDNF gene in ADHD is warranted. (c) 2007 Wiley-Liss, Inc.

Association study of the brain-derived neurotropic factor (BDNF) gene in attention deficit hyperactivity disorder. Publishing Authors By Initials

J Lee,N Laurin,J Crosbie,A Ickowicz,T Pathare,M Malone,R Tannock,JL Kennedy,R Schachar,CL Barr,J Lee,N Laurin,J Crosbie,A Ickowicz,T Pathare,M Malone,R Tannock,JL Kennedy,R Schachar,CL Barr,J Lee,N Laurin,J Crosbie,A Ickowicz,T Pathare,M Malone,R Tannock,JL Kennedy,R Schachar,CL Barr,

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Association study of the brain-derived neurotropic factor (BDNF) gene in attention deficit hyperactivity disorder. Journal Published:

PUBLICATION TYPE: Journal Article

Journal: American journal of medical genetics. Part B, Neur

VOLUME: 144

Page Numbers: 976-81

Journal Abbreviation: Am. J. Med. Genet. B Neuropsyc

ISSN: 1552-4841

DAY: 5

MONTH: Dec

YEAR: 2007

Association study of the brain-derived neurotropic factor (BDNF) gene in attention deficit hyperactivity disorder. Information

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LANGUAGE: eng

NlmUniqueID: 101235742

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Grant and Affiliation Information for Association study of the brain-derived neurotropic factor (BDNF) gene in attention deficit hyperactivity disorder.

AFFILIATION: Cell and Molecular Biology Division, Toronto Western Research Institute, University Health Network, Toronto, Ontario, Canada.

Country: United States

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MEDLINETA: Am J Med Genet B Neuropsychiat

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