Obesity and coronary microvascular disease - implications for adipose tissue-mediated remote inflammatory response

Area of Science:

• Cardiovascular Physiology
• Obesity Pathophysiology
• Vascular Inflammation

Background:

• Obesity negatively impacts coronary circulation, causing vasomotor dysfunction and coronary artery disease.
• Coronary microvascular disease (CMD) in obesity is poorly understood, though chronic inflammation is a key factor.
• Adipose tissue and macrophages release pro-inflammatory mediators contributing to inadequate myocardial perfusion and heart failure.

Purpose of the Study:

• To review recent studies on coronary resistance artery vasomotor function in obesity.
• To examine the role of adipose tissue-derived cytokines and adipokines in obesity-related CMD.
• To explore mechanisms of adipokine release and their remote inflammatory effects on coronary microvessels.

Main Methods:

• Literature review of recent studies on obesity and coronary microcirculation.
• Analysis of mechanisms linking adipose tissue inflammation to coronary microvascular dysfunction.
• Examination of adipokine signaling pathways in the context of obesity and cardiovascular health.

Main Results:

• Obesity alters coronary resistance artery vasomotor function.
• Adipose tissue-derived pro-inflammatory cytokines and adipokines are key contributors to CMD.
• Specific regulatory mechanisms for adipokine release and their impact on coronary microvessels are elucidated.

Conclusions:

• Obesity-induced chronic inflammation and altered adipokine signaling significantly contribute to coronary microvascular disease.
• Understanding these mechanisms is crucial for developing therapeutic strategies to prevent heart failure in obese patients.
• Further research is needed to fully elucidate the complex interplay between adipose tissue, inflammation, and coronary microvascular function.