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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
12
pubmed:dateCreated
2005-11-7
pubmed:abstractText
Cocaine dependence aetiology is complex and genetically influenced. We hypothesize that, for many users, efficient metabolism of cocaine and its toxic byproducts aids persistent cocaine use, such as that leading to dependence. The glutathione-S-transferases - in particular, GST-Pi - may be important in preventing cocaine and alcohol-induced oxidative damage. We genotyped a GST-Pi functional polymorphism (Ile105Val) in 654 male cocaine users and 572 controls from Brazil. Genotype and allele frequencies of Ile105Val differed significantly (chi = 6.74; P=0.03 and chi = 6.54; P = 0.01, respectively). Ile/Ile cocaine dependents had an OR = 1.31 (95%CI: 1.04-1.65), and Ile/Ile dependents consuming >50 units alcohol weekly an OR of 1.44 (95% CI:1.06-1.96). Population stratification was assessed and did not affect the results. These data require replication but do suggest that the high activity Ile105 GST-Pi allele may influence the aetiology and development of cocaine dependence.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Dec
pubmed:issn
1744-6872
pubmed:author
pubmed:issnType
Print
pubmed:volume
15
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
891-3
pubmed:dateRevised
2008-11-21
pubmed:meshHeading
pubmed:year
2005
pubmed:articleTitle
A GSTP1 functional variant associated with cocaine dependence in a Brazilian population.
pubmed:affiliation
MRC Social Genetic and Developmental Psychiatry Research Centre, Institute of Psychiatry, King's College London, UK.
pubmed:publicationType
Journal Article