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The effect of zotepine, risperidone, clozapine and olanzapine on MK-801-disrupted sensorimotor gating

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11120%2F05%3A00009602" target="_blank" >RIV/00216208:11120/05:00009602 - isvavai.cz</a>

  • Alternative codes found

    RIV/00023752:_____/05:00000476

  • Result on the web

  • DOI - Digital Object Identifier

Alternative languages

  • Result language

    angličtina

  • Original language name

    The effect of zotepine, risperidone, clozapine and olanzapine on MK-801-disrupted sensorimotor gating

  • Original language description

    Dizocilpine (MK-801; 0,3 mg/kg i.p.) - induced disruption in prepulse inhibition of the acoustic startle response (PPI) can be preferentially restored by 'atypical' antipsychotics. In contrast, some finding indicate that not all of the 'atypical' antipsychotics, such as clozapine and risperidone, are effective in restoring the NMDA antagonist-induced deficits in PPI. In our study, we evaluated the effect of four different 'atypical' antipsychotic drugs on deficits in PPI induced by MK-801. Zotepine andrisperidone have high affinities to D2-like and 5-HT2A receptors, while clozapine and olanzapine have multipharmacological profiles with the highest affinities to serotonin 5-HT1A,2A/2C receptors and muscarinic receptors. Results have shown that MK-801 disrupted PPI and increased the ASR in rats. Our results showed no effect of zotepine (1 and 2 mg/kg) and risperidone (0,1 and 1 mg/kg) on disrupted PPI by MK-801.

  • Czech name

    Účinek zotepiinu, risperidonu, clozapiinu a olanzapinu na poškozený senzorimotorický gating po podání MK-801.

  • Czech description

    Aplikace dizocilpinu (MK-801;0,3 mg/kg i.p.) poškozuje prepulzní inhibici akustické úlekové reakce (PPI). Deficit PPI navozený MK-801 je přednostně obnoven 'atypickými' antipsychotiky. Avšak některé nálezy ukazují, že ne všechna 'atypická' antipsychotika, jako je clozapin a risperidon jsou účinný v obnovení PPI. V naší studii jsme vyhodnotili účinek čtyř rozdílných 'atypických' antipsychotik na deficit v PPI navozený aplikací MK-801. Zotepin a risperidon vykazují vysokou afinitu k D2-like a 5-HT2A receptorům, ačkoliv clozapin a olanzapin mají multifarmakologický profil s vysokou afinitou k serotoninovým 5-HT1A a 5-HT2A/2C receptorům a muskarinovým receptorům. Výsledky ukazují, že MK-801 poškozuje PPI a zvyšuje úlekovou reakci u potkanů. Nebyl pozorovánžádný efekt zotepinu (1 a 2 mg/kg) a risperidonu (0,1 a 1 mg/kg) na deficit v PPI navozený MK-801. Podání clozapinu (5 a 10 mg/kg) a olanzapinu (2,5 a 5 mg/kg) obnovilo PPI poškozené MK-801.

Classification

  • Type

    J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

  • CEP classification

    FH - Neurology, neuro-surgery, nuero-sciences

  • OECD FORD branch

Result continuities

  • Project

    <a href="/en/project/NL7684" target="_blank" >NL7684: The role of serotonin activity in unique action of atypical antipsychotics in animal model of schizophrenia</a><br>

  • Continuities

    P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Others

  • Publication year

    2005

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Name of the periodical

    Pharmacology Biochemistry and Behavior

  • ISSN

    0091-3057

  • e-ISSN

  • Volume of the periodical

    80

  • Issue of the periodical within the volume

    4

  • Country of publishing house

    GB - UNITED KINGDOM

  • Number of pages

    6

  • Pages from-to

    591-596

  • UT code for WoS article

  • EID of the result in the Scopus database