Coronary microcirculation in myocardial ischemia: A genetic perspective

Area of Science:

• Cardiology
• Genetics
• Vascular Biology

Background:

• Coronary microvascular dysfunction (CMD) significantly contributes to ischemic heart disease (IHD), independent of or alongside atherosclerosis.
• CMD involves structural and functional changes in the heart's microcirculation, leading to abnormal coronary blood flow.
• Pathological changes include microvascular remodeling, narrowing of arterioles and capillaries, perivascular fibrosis, and capillary rarefaction.

Purpose of the Study:

• To review the genetic determinants of coronary microvascular dysfunction (CMD).
• To focus on the role of genetic factors, such as single nucleotide polymorphisms (SNPs), in CMD.
• To explore the involvement of ion channels, microRNAs (miRNAs), and endothelial proteins in CMD genetics.

Main Methods:

• Literature review of genetic factors implicated in coronary microvascular dysfunction.
• Analysis of genetic variations (SNPs) affecting coronary blood flow and microcirculation.
• Examination of genetic influences on ion channels, miRNAs, and endothelial proteins relevant to CMD.

Main Results:

• Genetic factors, particularly SNPs, are crucial in the pathophysiology of CMD.
• Specific genes regulating coronary blood flow and microvascular structure are identified as key players.
• Ion channels, miRNAs, and endothelial proteins represent important genetic targets in CMD.

Conclusions:

• Genetic insights into CMD pathophysiology are advancing.
• This knowledge can facilitate the development of novel biomarkers for improved CMD diagnosis.
• Targeted, patient-tailored therapeutic strategies for CMD can be developed based on genetic understanding.