Účinek ligandu sigma receptoru haloperidolu na srdeční excitabilitu

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14110%2F05%3A00013056" target="_blank" >RIV/00216224:14110/05:00013056 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Effect of sigma receptor ligand haloperidol on cardiac excitability

Popis výsledku v původním jazyce

Sigma receptor ligand haloperidol is a psychotropic drug used in the treatment of various psychiatric disorders. Severe cardiovascular side effects (mostly ventricular arrhythmias) have been reported. Thus, we have investigated the effects of haloperidolon the sodium current INa and potassium currents, the transient outward current Ito, the current at the end of 250ms-impulse IK,end (that is mainly composed of the delayed rectifier current IK) and the inward rectifier current IK1. Experiments were performed on enzymatically isolated rat ventricular cardiomyocytes by whole cell patch clamp technique at room temperature. Haloperidol inhibited reversibly and in concentration-dependent manner amplitudes of all tested ion currents with 39% inhibition of INa, 39% inhibition of Ito and 14% inhibition of IK,end in the presence of 1 ľmol/l and 95% inhibition of INa, 80% inhibition of Ito, 37% inhibition of IK,end and 29 % inhibition of IK1 in the presence of 10 ľmol/l haloperidol. Inhibition o

Název v anglickém jazyce

Effect of sigma receptor ligand haloperidol on cardiac excitability

Popis výsledku anglicky

Sigma receptor ligand haloperidol is a psychotropic drug used in the treatment of various psychiatric disorders. Severe cardiovascular side effects (mostly ventricular arrhythmias) have been reported. Thus, we have investigated the effects of haloperidolon the sodium current INa and potassium currents, the transient outward current Ito, the current at the end of 250ms-impulse IK,end (that is mainly composed of the delayed rectifier current IK) and the inward rectifier current IK1. Experiments were performed on enzymatically isolated rat ventricular cardiomyocytes by whole cell patch clamp technique at room temperature. Haloperidol inhibited reversibly and in concentration-dependent manner amplitudes of all tested ion currents with 39% inhibition of INa, 39% inhibition of Ito and 14% inhibition of IK,end in the presence of 1 ľmol/l and 95% inhibition of INa, 80% inhibition of Ito, 37% inhibition of IK,end and 29 % inhibition of IK1 in the presence of 10 ľmol/l haloperidol. Inhibition o

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

ED - Fyziologie

OECD FORD obor

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Projekt

<a href="/cs/project/GA305%2F04%2F1385" target="_blank" >GA305/04/1385: Modulační úloha sigma signalizace na elektromechanické vztahy izolovaného kardiomyocytu a srdce</a><br>

Návaznosti

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

Rok uplatnění

2005

Kód důvěrnosti údajů

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

Název periodika

Physiological Research

ISSN

0862-8408

e-ISSN

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Svazek periodika

54

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

1

Strana od-do

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Kód UT WoS článku

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EID výsledku v databázi Scopus

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