Progress in molecular mechanisms of coronary microvascular dysfunction

Area of Science:

• Cardiovascular Science
• Vascular Biology
• Pathophysiology

Background:

• Coronary microvascular dysfunction (CMD) is a significant risk factor for cardiovascular events.
• It is often misdiagnosed due to complex risk factors and poorly understood mechanisms.
• CMD involves impaired regulation of myocardial perfusion and blood flow distribution.

Purpose of the Study:

• To review the risk factors associated with coronary microvascular dysfunction.
• To elucidate the underlying pathophysiological mechanisms of CMD.
• To highlight the critical role of endothelial cell damage in CMD.

Main Methods:

• Literature review of existing studies on coronary microvascular dysfunction.
• Analysis of risk factors including hyperglycemia, lipid disorders, ischemia-reperfusion, aging, and hypertension.
• Examination of the impact of these factors on endothelial cell function.

Main Results:

• Endothelial cell damage is a key feature of CMD.
• Early CMD involves impaired endothelial cell proliferation, adhesion, migration, apoptosis, and secretion.
• Identified risk factors share common pathways that harm endothelial function.

Conclusions:

• CMD poses a significant clinical challenge due to diagnostic and therapeutic limitations.
• Understanding the pathogenesis, particularly endothelial dysfunction, is vital for advancing CMD management.
• Further research into the mechanisms linking risk factors to endothelial damage is warranted.