DRAŽANOVÁ, Eva, Jana RUDÁ, Lucie KRATKA, Kateřina HORSKÁ, Regina DEMLOVÁ, Zenon STARČUK and Tomáš KAŠPÁREK. Poly(I:C) model of schizophrenia in rats induces sex-dependent functional brain changes detected by MRI that are not reversed by aripiprazole treatment. Brain Research Bulletin. Oxford: Pergamon-Elsevier Science LTD, 2018, vol. 137, March 2018, p. 146-155. ISSN 0361-9230. Available from: https://dx.doi.org/10.1016/j.brainresbull.2017.11.008.
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Basic information
Original name Poly(I:C) model of schizophrenia in rats induces sex-dependent functional brain changes detected by MRI that are not reversed by aripiprazole treatment
Name in Czech Poly(I:C) model schizofrenie u potkana vyvolává funkční MRI změny v mozku v závislosti na pohlaví, které nejsou zvráceny podáváním aripiprazolu
Authors DRAŽANOVÁ, Eva (203 Czech Republic, belonging to the institution), Jana RUDÁ (203 Czech Republic, guarantor, belonging to the institution), Lucie KRATKA (203 Czech Republic), Kateřina HORSKÁ (203 Czech Republic), Regina DEMLOVÁ (203 Czech Republic, belonging to the institution), Zenon STARČUK (203 Czech Republic) and Tomáš KAŠPÁREK (203 Czech Republic, belonging to the institution).
Edition Brain Research Bulletin, Oxford, Pergamon-Elsevier Science LTD, 2018, 0361-9230.
Other information
Original language English
Type of outcome Article in a journal
Field of Study 30103 Neurosciences
Country of publisher United Kingdom of Great Britain and Northern Ireland
Confidentiality degree is not subject to a state or trade secret
WWW URL
Impact factor Impact factor: 3.103
RIV identification code RIV/00216224:14110/18:00102121
Organization unit Faculty of Medicine
Doi http://dx.doi.org/10.1016/j.brainresbull.2017.11.008
UT WoS 000427344300016
Keywords in English aripiprazole; Arterial Spin Labelling; Wistar rats; schizophrenia; sex; MRI
Tags 14110222, 14110516, EL OK, rivok
Tags International impact, Reviewed
Changed by Changed by: Mgr. Tereza Miškechová, učo 341652. Changed: 27/1/2021 12:56.
Abstract
ackground and purpose: One of the hallmarks of schizophrenia is altered brain structure, potentially due to antipsychotic treatment, the disorder itself or both. It was proposed that functional changes may precede the structural ones. In order to understand and potentially prevent this unwanted process, brain function assessment should be validated as a diagnostic tool. Methods: We used Arterial Spin Labelling MRI technique for the evaluation of brain perfusion in several brain regions in a neurodevelopmental poly(I:C) model of schizophrenia (8 mg/kg on a gestational day 15) in rats taking into account sex-dependent effects and chronic treatment with aripiprazole (30 days), an atypical antipsychotic acting as a partial agonist on dopaminergic receptors. Results: We found the sex of the animal to have a highly significant effect in all regions of interest, with females showing lower blood perfusion than males. However, both males and females treated prenatally with poly(I:C) showed enlargement of the lateral ventricles. Furthermore, we detected increased perfusion in the circle of Willis, hippocampus, and sensorimotor cortex, which was not influenced by chronic atypical antipsychotic aripiprazole treatment in male poly(I:C) rats. Conclusion: We hypothesize that perfusion alterations may be caused by the hyperdopaminergic activity in the poly(I:C) model, and the absence of aripiprazole effect on perfusion in brain regions related to schizophrenia may be due to its partial agonistic mechanism.
Links
LM2015062, research and development projectName: Národní infrastruktura pro biologické a medicínské zobrazování
Investor: Ministry of Education, Youth and Sports of the CR
LM2015090, research and development projectName: Český národní uzel Evropské sítě infrastruktur klinického výzkumu (Acronym: CZECRIN)
Investor: Ministry of Education, Youth and Sports of the CR
MUNI/A/1063/2016, interní kód MUName: Experimentální a translační farmakologický výzkum a vývoj
Investor: Masaryk University, Category A
MUNI/A/1132/2017, interní kód MUName: Behaviorální psychofarmakologie a farmakokinetika v preklinickém výzkumu léčiv
Investor: Masaryk University, Category A
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