Metabolic Modulation in Dilated Cardiomyopathy: From Pathophysiology to Therapy

Area of Science:

• Cardiology
• Metabolic Research
• Biochemistry

Background:

• Dilated cardiomyopathy (DCM) is characterized by myocardial structural and functional impairments.
• Causes include genetic mutations (e.g., TTN, lamin) and acquired factors (infection, alcohol, drugs, endocrine disorders).
• Disrupted cardiac energy homeostasis is central to DCM pathogenesis, leading to contractile dysfunction.

Purpose of the Study:

• To synthesize evidence on cardiac energy metabolism's role in DCM pathogenesis.
• To focus on myocardial blood flow, substrate utilization, and metabolic pathways.
• To explore potential energy-targeted therapeutic strategies for DCM.

Main Methods:

• Review of current scientific literature and evidence.
• Synthesis of data on genetic and acquired factors in DCM.
• Analysis of myocardial energetics and adenosine triphosphate (ATP) production.

Main Results:

• Impaired myocardial energetics, reduced coronary blood flow, and altered substrate metabolism are hallmark features of DCM.
• Energy deficiency is increasingly recognized as a key driver of DCM development and heart failure.
• Cardiac energy metabolic disruption is integral to DCM pathophysiology.

Conclusions:

• Cardiac energy metabolic disruption is a promising target for novel therapeutic interventions in DCM.
• Current DCM management often overlooks metabolic aspects.
• Integrating energy-based approaches into DCM treatment is needed.