Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
7
pubmed:dateCreated
2000-12-11
pubmed:abstractText
Preliminary studies in patients with Gilles de la Tourette syndrome (TS) provided evidence of presynaptic dopaminergic dysfunction, demonstrating increased reuptake sites. Therefore we investigated striatal dopamine transporter binding in 12 TS patients and 9 control subjects using single photon emission computed tomography and 123I-labeled 2beta-carbomethoxy-3beta-(4-iodophenyl)tropane. In TS patients we found significantly higher relative striatal activity ratios (mean +/- SD 12.33 +/- 3.58) than in controls (9.36 +/- 1.35, P< 0.05). Only five patients, however, showed striatum/occipital cortex ratios more than 2 SD above the normal means. Seven patients had activity ratios within the average ratio of the control group plus 2 SD. Regarding the relationship between clinical parameters and striatum/occipital cortex ratios, we found an association between binding ratios and "self-injurious behavior" and "lack of impulse control." This study corroborates previous data suggesting an involvement of the dopaminergic system in TS pathology. Our results demonstrate that an increase in dopamine transporter capacity is a possible but not a necessary alteration, and which appears more likely when self-injurious behavior and lack of impulse control are associated.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jul
pubmed:issn
0340-5354
pubmed:author
pubmed:issnType
Print
pubmed:volume
247
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
514-20
pubmed:dateRevised
2005-11-17
pubmed:meshHeading
pubmed:year
2000
pubmed:articleTitle
Dopamine transporter binding in Gilles de la Tourette syndrome.
pubmed:affiliation
Department of Clinical Psychiatry and Psychotherapy, Medical School of Hannover, Germany. Mueller-Vahl.Kirsten@MH-Hannover.de
pubmed:publicationType
Journal Article