Effects of Cyanamide, an Aldehyde Dehydrogenase Type 2 Inhibitor, on Glyceryl Trinitrate- and Isosorbide Dinitrate-Induced Vasodilation in Rabbit Excised Aorta and in Anesthetized Whole Animal
Abstract:The contribution of aldehyde dehydrogenase type 2 (ALDH2) to bioactivation of glyceryl trinitrate (GTN) and isosorbide dinitrate (ISDN) was systematically examined in excised rabbit aorta and anesthetized whole animal with cyanamide, an ALDH2 inhibitor. In excised aortic preparation, the degree of inhibition by cyanamide in GTN-induced vasorelaxation (concentration ratio, calculated as EC 50 in the presence of cyanamide/EC 50 in the absence of cyanamide; 5.61) was twice that in ISDN-induced relaxation (2.78). … Show more
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