In vivo binding of the dopamine-1 receptor PET tracers [¹¹C]NNC112 and [¹¹C]SCH23390: a comparison study in individuals with schizophrenia

Eline M P Poels, Ragy R Girgis, Judy L Thompson, Mark Slifstein, Anissa Abi-Dargham

Research output: Contribution to journalArticleAcademicpeer-review

21 Citations (Scopus)

Abstract

RATIONALE: A deficit in dopamine-1 (D1) receptor function in the prefrontal cortex is suggested to play a role in the cognitive dysfunction observed in patients with schizophrenia. However, the results from positron emission tomography imaging studies of D1 receptor levels in individuals with schizophrenia are mixed.

OBJECTIVES: The aim of this investigation was to determine whether the in vivo characteristics of the different D1 receptor tracers used in previous reports, [(11)C]SCH23390 and [(11)C]NNC112, may have contributed to these discrepancies reported in the literature.

METHODS: Eight patients with schizophrenia and 12 healthy control subjects were scanned with both [(11)C]SCH23390 and [(11)C]NNC112.

RESULTS: [(11)C]SCH23390 and [(11)C]NNC112 binding potentials in both patients and control subjects were compared and no tracer by diagnosis interactions were observed.

CONCLUSIONS: The results of this study suggest that differences in the binding of [(11)C]SCH23390 and [(11)C]NNC112 observed in previous studies are not due to differences in the in vivo behavior of these tracers.

Original languageEnglish
Pages (from-to)167-74
Number of pages8
JournalPsychopharmacology
Volume228
Issue number1
DOIs
Publication statusPublished - Jul 2013
Externally publishedYes

Fingerprint

Dive into the research topics of 'In vivo binding of the dopamine-1 receptor PET tracers [¹¹C]NNC112 and [¹¹C]SCH23390: a comparison study in individuals with schizophrenia'. Together they form a unique fingerprint.

Cite this