Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1-2
pubmed:dateCreated
2006-7-4
pubmed:abstractText
Attention-deficit/hyperactivity disorder (ADHD) is a complex psychiatric syndrome with cardinal symptoms of inattention, hyperactivity and impulsivity, and is a significant risk factor for poor health outcomes in both adolescence and adulthood. Etiology is clearly multifactoral, with probable contributions from both genetic and environmental factors. The genetic contribution is prominent, with estimated heritability at about 0.80. Although effects in dopamine metabolism have long been implicated in the etiology of ADHD, the role for serotonin has gained more attention in recent years. The current study examined five variants in three serotonin genes [those that code for serotonin receptors 2A (HTR2A), 5A (HTR5A) and 6 (HTR6)] in a relatively large sample of ADHD nuclear families. The transmission disequilibrium test (TDT) and the extended transmission disequilibrium test (ETDT) were performed to test for evidence of distorted transmission of alleles or haplotypes. No significant biased transmission was observed. These results do not support a substantial role of these serotonin gene in ADHD, however, additional work may be warranted before this association is definitively discounted.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jul
pubmed:issn
0304-3940
pubmed:author
pubmed:issnType
Print
pubmed:day
31
pubmed:volume
403
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
172-5
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
2006
pubmed:articleTitle
No association of attention-deficit/hyperactivity disorder with genes of the serotonergic pathway in Han Chinese subjects.
pubmed:affiliation
Institute of Mental Health, Peking University, Peking University sixth hospital, Beijing 100083, PR China.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't