Low frontal serotonin 2A receptor binding is a state marker for schizophrenia?

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Low frontal serotonin 2A receptor binding is a state marker for schizophrenia?

Eur Neuropsychopharmacol. 2016 May 11;

Authors: Rasmussen H, Frokjaer VG, Hilker RW, Madsen J, Anhøj S, Oranje B, Pinborg LH, Glenthøj B, Knudsen GM

Abstract
Here we imaged serotonin 2A receptor (5-HT2AR) binding in a very rare population of monozygotic twins discordant for schizophrenia to provide insight into trait and state components in brain 5-HT2AR patterns. In four twin pairs not medicated with drugs that target 5-HT2AR, frontal 5-HT2AR binding was consistently lower (33%) in schizophrenic- relative to their healthy co-twins. Our results strongly imply low frontal 5-HT2AR availability as a state feature of schizophrenia. If replicated, ideally in a larger sample also including dizygotic twin pairs and drug-naïve patients, this finding critically advance our understanding of the complex pathophysiology of schizophrenia.

PMID: 27179966 [PubMed – as supplied by publisher]

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