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Onwordi, Ellis Chika; Halff, Els F; Whitehurst, Thomas; Mansur, Ayla; Cotel, Marie-Caroline; Wells, Lisa; Creeney, Hannah; Bonsall, David; Rogdaki, Maria; Shatalina, Ekaterina; Reis Marques, Tiago; Rabiner, Eugenii A; Gunn, Roger N; Natesan, Sridhar; Vernon, Anthony C; Howes, Oliver D
Nature communications, 01/2020, Letnik: 11, Številka: 1Journal Article
Synaptic dysfunction is hypothesised to play a key role in schizophrenia pathogenesis, but this has not been tested directly in vivo. Here, we investigated synaptic vesicle glycoprotein 2A (SV2A) levels and their relationship to symptoms and structural brain measures using CUCB-J positron emission tomography in 18 patients with schizophrenia and 18 controls. We found significant group and group-by-region interaction effects on volume of distribution (V ). CUCB-J V was significantly lower in the frontal and anterior cingulate cortices in schizophrenia with large effect sizes (Cohen's d = 0.8-0.9), but there was no significant difference in the hippocampus. We also investigated the effects of antipsychotic drug administration on SV2A levels in Sprague-Dawley rats using western blotting, HUCB-J autoradiography and immunostaining with confocal microscopy, finding no significant effects on any measure. These findings indicate that there are lower synaptic terminal protein levels in schizophrenia in vivo and that antipsychotic drug exposure is unlikely to account for them.
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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Povezave do osebnih bibliografij avtorjev | Povezave do podatkov o raziskovalcih v sistemu SICRIS |
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Vir: Osebne bibliografije
in: SICRIS
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