| Autor: |
Katherine Beck, Atheeshaan Arumuham, Mattia Veronese, Barbara Santangelo, Colm J. McGinnity, Joel Dunn, Robert A. McCutcheon, Stephen J. Kaar, Nisha Singh, Toby Pillinger, Faith Borgan, James Stone, Sameer Jauhar, Teresa Sementa, Federico Turkheimer, Alexander Hammers, Oliver D. Howes |
| Jazyk: |
angličtina |
| Rok vydání: |
2021 |
| Předmět: |
|
| Zdroj: |
Translational Psychiatry, Vol 11, Iss 1, Pp 1-8 (2021) |
| Druh dokumentu: |
article |
| ISSN: |
2158-3188 |
| DOI: |
10.1038/s41398-021-01540-2 |
| Popis: |
Abstract N-methyl-D-aspartate receptor (NMDAR) hypofunction is hypothesised to underlie psychosis but this has not been tested early in illness. To address this, we studied 40 volunteers (21 patients with first-episode psychosis and 19 matched healthy controls) using PET imaging with an NMDAR selective ligand, [18F]GE-179, that binds to the ketamine binding site to index its distribution volume ratio (DVR) and volume of distribution (V T). Hippocampal DVR, but not V T, was significantly lower in patients relative to controls (p = 0.02, Cohen’s d = 0.81; p = 0.15, Cohen’s d = 0.49), and negatively associated with total (rho = −0.47, p = 0.04), depressive (rho = −0.67, p = 0.002), and general symptom severity (rho = −0.74, p |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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