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Endothelin and myocardial ischemia
D Hasdai1, R Kornowski, A Battler
1Neufeld Cardiac Research Institute, Sackler Faculty of Medicine, Tel-Aviv University, Sheba Medical Center, Tel Hashomer, Israel.
Insights
Endothelin, a vasoconstrictor, impacts the heart. Blocking endothelin action may reduce myocardial damage in ischemia and infarction, warranting further research into this interaction.
Area of Science:
- Cardiovascular Physiology
- Endocrinology
Background:
- Endothelin is a potent vasoconstrictor affecting cardiac function.
- Elevated endothelin levels are observed in myocardial ischemia, infarction, and angina.
- The precise role of endothelin in myocardial ischemia remains incompletely understood.
Purpose of the Study:
- To review current literature on endothelin's interaction with myocardial ischemia.
- To explore the significance of endothelin in various ischemic heart conditions.
Main Methods:
- Literature review of experimental and human studies.
- Analysis of research on endothelin's effects in myocardial ischemia models.
- Examination of studies investigating endothelin antagonists.
Main Results:
- Endothelin levels are altered in myocardial ischemia and infarction.
- Administration of endothelin-blocking agents reduced myocardial damage in experimental infarction models.
Conclusions:
- Endothelin plays a significant role in myocardial ischemia.
- Targeting endothelin pathways presents a potential therapeutic strategy for ischemic heart disease.
Abstract:
Endothelin is a potent vasoconstrictor with a wide range of effects on the heart. Changes in myocardial and circulating levels of endothelin have been described in various experimental models of myocardial ischemia, and in humans with acute myocardial infarction and different forms of angina pectoris. The role played by endothelin in the different states of myocardial ischemia is unclear. However, myocardial damage has been shown to be reduced in several experimental models of myocardial infarction by administering agents that block the action of endothelin. The aim of this review article is to present the current literature concerning the interaction between endothelin and the various forms of myocardial ischemia, and to explore the significance of such interactions.