| Literature DB >> 1674157 |
G Sedvall1, L Farde, A Barnett, H Hall, C Halldin.
Abstract
The new selective D1-dopamine receptor antagonist SCH 39166 was labelled with the positron emitting isotope 11C and used as ligand for visualization of dopamine-D1 receptor binding in Cynomolgus monkeys by PET. After intravenous administration of the ligand a marked uptake of radioactivity was recorded in the D1-dopamine receptor-rich striatum and neocortex but not in the dopamine receptor-poor cerebellum. The uptake of radioactivity in striatum and neocortex was markedly displaced after the intravenous injection of a high dose of the D1-dopamine receptor antagonist SCH 23390 but not after the 5-HT2 receptor antagonist ketanserine. 11C-SCH 39166 should be a useful tool to explore D1-dopamine receptor characteristics in the living human brain by PET.Entities:
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Year: 1991 PMID: 1674157 DOI: 10.1007/bf02244195
Source DB: PubMed Journal: Psychopharmacology (Berl) ISSN: 0033-3158 Impact factor: 4.530