Mechanisms of endothelin-1-induced pulmonary vasodilatation in neonatal pigs.

Abstract

1. We determined the contributions of three independent vasodilator mechanisms (cyclo-oxygenase metabolites, nitric oxide and ATP-sensitive potassium channels) in the mediation of pulmonary vasomotor effects of endothelin-1 (ET-1) in neonatal pigs. 2. Lungs of piglets (2.7 +/- 0.3 days old) were perfused at constant flow (60 ml min-1) with recirculating… (More)

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