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A simple and rapid in vitro test system for the screening of histamine H3 ligands
R C Vollinga1, O P Zuiderveld, H Scheerens
1Department of Pharmacochemistry, Faculty of Chemistry, Vrije Universiteit, Amsterdam, The Netherlands.
Methods and Findings in Experimental and Clinical Pharmacology
|December 1, 1992
Abstract:
A simple and rapid functional test system for the screening of histamine H3 ligands is described. It is based on the inhibitory effect of histamine H3 agonists on electrically-evoked contractile response of isolated guinea pig intestine. Whole jejunum segments are continuously stimulated maximally (15 V) by electrical pulses with a frequency of 0.1 Hz and a duration of 0.5 msec. The resulting twitches are recorded isotonically (1.0 g) and can be completely abolished by atropine (0.1 mcM).