Endothelin and vascular reactivity in cirrhosis
Cornel C. Sieber – 1 November 1995 – Background/Aims: Because the vasodilator nitric oxide is overproduced in cirrhosis, this substance may decrease pressor responses to the vasoconstrictor endothelin 1. This study aimed to examine the effects of a NO synthesis inhibitor (NG‐nitro‐L‐arginine methyl ester; L‐NAME) on vascular responsiveness to endothelin 1 in normal and cirrhotic rats. Methods: Pressor dose‐response curves to endothelin 1 (0.5, 1, 3, 6, and 10 μg/kg intravenously) were obtained in animals with or without pretreatment with L‐NAME.