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Effects of Dizocilpine, Midazolam and Their Co-Application on the Trimethyltin (TMT)-Induced Rat Model of Cognitive Deficit
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SYSNO ASEP 0541890 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Effects of Dizocilpine, Midazolam and Their Co-Application on the Trimethyltin (TMT)-Induced Rat Model of Cognitive Deficit Author(s) Chvojková, Markéta (FGU-C) RID, ORCID
Kubová, Hana (FGU-C) RID, ORCID
Valeš, Karel (FGU-C) RID, ORCID, SAIArticle number 400 Source Title Brain Sciences. - : MDPI
Roč. 11, č. 3 (2021)Number of pages 16 s. Language eng - English Country CH - Switzerland Keywords cognitive function ; trimethyltin ; hippocampus ; NMDA receptor ; GABA A receptor ; dementia ; combination therapy ; Alzheimer’s disease ; neurodegeneration ; neuroprotection Subject RIV FH - Neurology OECD category Neurosciences (including psychophysiology R&D Projects GA18-09296S GA ČR - Czech Science Foundation (CSF) GA14-20613S GA ČR - Czech Science Foundation (CSF) NU20-04-00389 GA MZd - Ministry of Health (MZ) EF16_025/0007444 GA MZd - Ministry of Health (MZ) Method of publishing Open access Institutional support FGU-C - RVO:67985823 UT WOS 000633424700001 EID SCOPUS 85103080385 DOI https://doi.org/10.3390/brainsci11030400 Annotation Research of treatment options addressing the cognitive deficit associated with neurodegenerative disorders is of particular importance. Application of trimethyltin (TMT) to rats represents a promising model replicating multiple relevant features of such disorders. N-methyl-D-aspartate (NMDA) receptor antagonists and gamma-aminobutyric acid type A (GABA(A)) receptor potentiators have been reported to alleviate the TMT-induced cognitive deficit. These compounds may provide synergistic interactions in other models. The aim of this study was to investigate, whether co-application of NMDA receptor antagonist dizocilpine (MK-801) and GABA(A) receptor potentiator midazolam would be associated with an improved effect on the TMT-induced model of cognitive deficit. Wistar rats injected with TMT were repeatedly (12 days) treated with MK-801, midazolam, or both. Subsequently, cognitive performance was assessed. Finally, after a 17-day drug-free period, hippocampal neurodegeneration (neuronal density in CA2/3 subfield in the dorsal hippocampus, dentate gyrus morphometry) were analyzed. All three protective treatments induced similar degree of therapeutic effect in Morris water maze. The results of histological analyses were suggestive of minor protective effect of the combined treatment (MK-801 and midazolam), while these compounds alone were largely ineffective at this time point. Therefore, in terms of mitigation of cognitive deficit, the combined treatment was not associated with improved effect. Workplace Institute of Physiology Contact Lucie Trajhanová, lucie.trajhanova@fgu.cas.cz, Tel.: 241 062 400 Year of Publishing 2022 Electronic address https://www.mdpi.com/2076-3425/11/3/400
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