Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
2008-1-11
pubmed:abstractText
Obsessive-compulsive disorder (OCD) is a disease of complex aetiology with a marked genetic component. Impact of the serotonergic system has been reported but the contribution of additional transmitter systems to the pathogenesis seems likely. The extraneuronal monoamine transporter, EMT (SLC22A3), is implicated in non-neuronal termination of noradrenergic signalling in the central nervous system and a candidate gene for a variety of neuropsychiatric disorders. We conducted a case-control study of 84 Caucasian children and adolescents with OCD according to DSM-IV criteria, and healthy adults by comprehensive sequencing of the EMT gene. Additionally, targeted genotype analysis was done with patient-parent trios. Known polymorphisms and frequent haplotypes were not associated with OCD in the present sample. Transmission disequilibrium test was negative for the presumptive cryptic splice site 1233G>A polymorphism. However, we identified two novel independent mutations exclusively in affected patients. A thus far unknown -106/107delAG mutation was detected in three male patients of unaffected parents but was not prevalent in 204 healthy subjects (p=0.024). In a luciferase reporter assay the mutant allele conferred increased promoter activity by 36%. Furthermore, we describe the first non-synonymous substitution in the EMT gene, Met370Ile, in a family of affected female members that co-segregated with the disease. The residue exhibits a high degree of inter-species conservation. Heterologous expression of mutant cDNA revealed a 40% decline of transport capacity for norepinephrine. Rare mutations in the EMT gene suggest a causative or modulating role in genetic subtypes of OCD.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Feb
pubmed:issn
1461-1457
pubmed:author
pubmed:issnType
Print
pubmed:volume
11
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
35-48
pubmed:meshHeading
pubmed-meshheading:17477885-Adolescent, pubmed-meshheading:17477885-Adult, pubmed-meshheading:17477885-Age of Onset, pubmed-meshheading:17477885-Alleles, pubmed-meshheading:17477885-Animals, pubmed-meshheading:17477885-Case-Control Studies, pubmed-meshheading:17477885-Cell Line, pubmed-meshheading:17477885-Child, pubmed-meshheading:17477885-Exons, pubmed-meshheading:17477885-Female, pubmed-meshheading:17477885-Gene Frequency, pubmed-meshheading:17477885-Genotype, pubmed-meshheading:17477885-Humans, pubmed-meshheading:17477885-Introns, pubmed-meshheading:17477885-Luciferases, pubmed-meshheading:17477885-Male, pubmed-meshheading:17477885-Mutation, pubmed-meshheading:17477885-Obsessive-Compulsive Disorder, pubmed-meshheading:17477885-Organic Cation Transport Proteins, pubmed-meshheading:17477885-Pedigree, pubmed-meshheading:17477885-Plasmids, pubmed-meshheading:17477885-Polymorphism, Genetic, pubmed-meshheading:17477885-Psychiatric Status Rating Scales, pubmed-meshheading:17477885-Species Specificity, pubmed-meshheading:17477885-Tourette Syndrome
pubmed:year
2008
pubmed:articleTitle
Novel mutations of the extraneuronal monoamine transporter gene in children and adolescents with obsessive-compulsive disorder.
pubmed:affiliation
Department of Pharmacology, University of Cologne, Cologne, Germany. andreas.lazar@medizin.uni-koeln.de
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't