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New Method for the Determination of the Half Inhibition Concentration (IC50) of Cholinesterase Inhibitors
Authors: Kovářová Markéta | Komers Karel | Štěpánková Šárka | Pařík Patrik | Čegan Alexander
Year: 2013
Type of publication: článek v odborném periodiku
Name of source: Zeitschrift fuer Naturforschung C-A Journal of Biosciences
Publisher name: Verlag der Zeitschrift für Naturforschung
Place: Tübingen
Page from-to: 133-138
Titles:
Language Name Abstract Keywords
cze Nová metoda stanovení poloviční inhibiční koncentrace (IC50) cholinesterázových inhibitorů Byla popsána nová a jednoduchá analytická metoda pro stanovení IC50 hodnot inhibitorů hydrolýzy acetylcholinu a acetylthiocholinu pomocí choliesteráz. Metoda je založena na monitorování časové závislosti pH během neinhibované a inhibované reakce. Potřebný je pouze pH-metr s vhodnou měřicí celou a malý termostatovaný míchaný vsádkový reaktor. cholinesteráza; inhibice; IC50; stanovení
eng New Method for the Determination of the Half Inhibition Concentration (IC50) of Cholinesterase Inhibitors A new and simple analytical method is described for the determination of the IC50 values of the inhibitors of the hydrolysis of acetylcholine (ACh) or acetylthiocholine (ATCh) by cholinesterases. The method is based on monitoring the time course of the pH value during the uninhibited and inhibited reaction. It requires only a pH meter with a suitable pH measuring cell and a small thermostated stirred batch reactor. The method has been validated for twelve different types of cholinesterase inhibitors. The determined IC50 values are comparable to those obtained by independent, more complicated, and expensive methods (Ellman's and pH-stat). cholinesterase Inhibition; IC50; determination