Influence of glycerol trinitrate on contractions of isolated guinea pig tracheas induced by electrical field stimulation.

Abstract

Electrical field stimulation induces cholinergic concentrations of isolated guinea pig tracheal preparations. Glycerol trinitrate increases these contractions at concentrations ranging from 10(-5) M to 10(-6) M, whereas a concentration of 10(-4) M induces strong inhibition of these reactions.