Why the study?
Does Angiotensin IV activate ecNOS and cause vasorelaxation in porcine pulmonary arterial endothelial cells and rings?
Population
Porcine pulmonary arterial endothelial cells (PAECs) and precontracted porcine pulmonary arterial rings
Comparison
Angiotensin IV (ANG IV) vs Control and various antagonists
Design
Preclinical
Authors
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May suggest AT4-mediated pulmonary vasodilation pathway; leaves open relevance to human pulmonary vascular disease.
Does Angiotensin IV activate ecNOS and cause vasorelaxation in porcine pulmonary arterial endothelial cells and rings?
Angiotensin IV binds to AT4 receptors to activate ecNOS, stimulate cGMP accumulation, and cause pulmonary arterial vasodilation, suggesting a role in regulating pulmonary blood flow.
Patel et al. (1998) studied this question.
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