EXP3174, the AII antagonist human metabolite of losartan, but not losartan nor the angiotensin-converting enzyme inhibitor captopril, prevents the development of lethal ischemic ventricular arrhythmias in a canine model of recent myocardial infarction
Joseph J. Lynch, Jr., PhD*,
Gary L. Stump, BS*,
Audrey A. Wallace, BS*,
Carla A. Painter, BS*,
Justina M. Thomas, BS ,
Sandra E. Kusma, BS ,
Robert J. Gould, PhD* and
William Grossman, MD, FACC ,1
* Department of Pharmacology, Merck Research Laboratories, West Point, Pennsylvania, USA
Department of Safety Assessment, Merck Research Laboratories, West Point, Pennsylvania, USA
Department of Clinical Cardiovascular Research, Merck Research Laboratories, West Point, Pennsylvania, USA

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Figure 1 Survival of losartan (n = 8; 1 mg/kg IV bolus + 0.03 mg/kg/min continuous IV infusion), EXP3174 (n = 8; 0.1 mg/kg IV bolus + 0.01 mg/kg/min continuous IV infusion), captopril (n = 10; 1 mg/kg IV bolus + 0.5 mg/kg/h continuous IV infusion) and vehicle-treated (n = 9) dogs with previous anterior myocardial infarction expressed as a function of time after onset of thrombotically induced acute posterolateral myocardial ischemia.
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