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[The role of endothelin in coronary circulation]
Insights
Endothelin, a key vasoconstrictor, impacts vascular tone and coronary function. Its role in endothelial damage and cardiovascular diseases like heart failure and myocardial infarction is significant.
Area of Science:
- Cardiovascular Physiology
- Endothelial Biology
- Vascular Medicine
Context:
- Endothelial cells produce endothelin, a potent vasoconstrictor crucial for vascular tonus.
- Endothelial dysfunction disrupts the balance between vasoconstrictor and vasodilator substances.
- Nitric oxide (NO) and endothelin are key players in maintaining vascular homeostasis.
Purpose:
- To review the multifaceted roles of endothelin in cardiovascular physiology.
- To elucidate the impact of endothelin on cardiomyocytes, cardiac conduction, and coronary arteries.
- To highlight endothelin's involvement in various cardiovascular pathologies.
Summary:
- Endothelin influences cardiomyocytes, cardiac conduction, and coronary artery function.
- The review emphasizes endothelin's detrimental effects in atherosclerosis, hypercholesterolemia, and hypertension.
- Endothelin is implicated in acute conditions such as unstable angina, cardiogenic shock, heart failure, and myocardial infarction.
- The review concludes by examining the link between percutaneous transluminal coronary angioplasty and endothelin release.
Impact:
- Provides a comprehensive overview of endothelin's physiological and pathological roles in the cardiovascular system.
- Underscores the significance of endothelin in diverse cardiovascular diseases, offering insights for therapeutic targets.
- Discusses the clinical implications of endothelin in conditions ranging from chronic diseases to acute cardiac events.
Abstract:
Endothelin, one of the most important vasoconstrictor substances produced by endothelial cells plays along with NO an important role in maintaining the vascular tonus and influencing the vasomotorics of coronary vessels and myocardial perfusion. Damage of the vascular endothelium upsets the dynamic balance between the action of vasoconstrictor and vasodilator substances. In the submitted review the authors discuss the influence of endothelin on cardiomyocytes, the cardiac conduction system and the coronary arteries. The authors emphasize the action of endothelin in atherosclerotically altered coronary arteries, in hypercholesterolaemia and arterial hypertension. Endothelin plays an important role in unstable angina pectoris, cardiogenic shock advanced congestive heart failure and myocardial infarction. In the conclusion the author discuss studies investigating the relationship of percutaneous transluminal coronary angioplasty and the endothelin release into the circulation.