title: Differential effects of oral trandolapril and enalapril on rat tissue angiotensin-converting enzyme.
abstract: Trandolapril (3-100 micrograms/kg) and enalapril (10-300 micrograms/kg) were administered orally to conscious rats. Angiotensin-converting enzyme (CE) activity was inhibited in serum, heart ventricle, renal inner cortex, lung, aorta, adrenal cortex and adrenal medulla, but not in the striatum. Inhibition was maximal at 2 h and with trandolapril was maintained for 24 h. Blood pressure and heart rate were not affected by either compound. Trandolapril was 6-10-fold more potent than enalapril. Differences between trandolapril and enalapril in CE inhibition observed in heart ventricle, adrenal cortex and medulla could be due to the presence of more than one type of CE or CE-like activity.
authors.affiliation: I.N.S.E.R.M. U.300, Faculté de Pharmacie, Montpellier, France.
authors.forename: C
authors.initials: C
authors.lastname: Chevillard
authors.forename: N L
authors.initials: NL
authors.lastname: Brown
authors.forename: M N
authors.initials: MN
authors.lastname: Mathieu
authors.forename: F
authors.initials: F
authors.lastname: Laliberté
authors.forename: M
authors.initials: M
authors.lastname: Worcel
mesh_terms: D000806:Angiotensin-Converting Enzyme Inhibitors / Q000494:pharmacology*; D000818:Animals; D001794:Blood Pressure / Q000187:drug effects; D004656:Enalapril / Q000494:pharmacology*; D006339:Heart Rate / Q000187:drug effects; D066298:In Vitro Techniques; D007211:Indoles / Q000494:pharmacology*; D008297:Male; D007703:Peptidyl-Dipeptidase A / Q000378:metabolism*; D051381:Rats
chemical_list: D000806:Angiotensin-Converting Enzyme Inhibitors; D007211:Indoles; C052035:trandolapril; D004656:Enalapril; D007703:Peptidyl-Dipeptidase A