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Endothelin and vasoactive peptides: new cardiovascular mediators
1Cardiovascular Disease and Muscle Research Laboratories, Charles A. Dana Research Institute, Boston, MA, USA.
Journal of Veterinary Pharmacology and Therapeutics
|December 1, 1994
Summary
Endothelins, potent vasoactive peptides, impact heart function and may contribute to heart disease. Elevated endothelin levels are linked to various cardiovascular conditions, suggesting its role in disease.
Area of Science:
- Cardiovascular Physiology
- Molecular Medicine
- Endocrinology
Background:
- Endothelins are a newly identified family of vasoactive peptides.
- These peptides exert significant inotropic and chronotropic effects on the myocardium.
- Emerging research indicates a potential role for endothelin in various pathophysiological conditions.
Purpose of the Study:
- To explore the potential role of endothelins in the development of heart disease.
- To discuss endothelin's function as a regional mediator in pathophysiological states.
Main Methods:
- Review of recent studies on endothelin's effects.
- Analysis of endothelin's mitogenic and gene regulatory properties.
- Correlation of elevated circulating endothelin levels with specific cardiovascular conditions.
Main Results:
- Endothelins stimulate mitogenesis in smooth muscle and fibroblasts.
- They influence gene expression and the secretion of other neurohumoral mediators.
- Elevated endothelin levels are observed in conditions such as pulmonary hypertension, myocardial infarction, and congestive heart failure.
Conclusions:
- Endothelins may play a role in the pathogenesis of heart disease.
- Their involvement in regulating vascular tone and cell growth suggests a contribution to cardiovascular remodeling.
- Further investigation into endothelin's role as a mediator in cardiovascular disease is warranted.