Heart Failure Pathogenesis Elucidation and New Treatment Method Development.

Area of Science:

• Cardiology
• Molecular Biology
• Pathophysiology

Background:

• Heart failure (HF) is a major cause of death globally, with Japan experiencing an "HF pandemic" due to an aging population.
• HF represents the advanced stage of cardiovascular diseases like valvular heart disease, ischemic heart disease, atrial fibrillation, and hypertension.
• Cardiac hypertrophy, initially a compensatory mechanism for increased workload, can lead to HF if continuous stress thins the cardiac walls.

Purpose of the Study:

• To elucidate the molecular mechanisms underlying the progression from cardiac hypertrophy to heart failure.
• To introduce novel insights into HF pathophysiology derived from basic research.
• To facilitate the development of precision medicine for heart failure.

Main Methods:

• Review of basic research findings on cardiac hypertrophy and heart failure.
• Analysis of molecular mechanisms, including ischemia and DNA damage, in HF progression.
• Examination of genetic mutations linked to cardiomyopathy and HF prognosis.

Main Results:

• Ischemia and DNA damage were identified as significant contributors to the progression of hypertrophy to heart failure.
• Genetic mutations influencing cardiomyopathy and patient prognosis have been identified.
• New molecular paradigms for understanding HF pathophysiology have been uncovered.

Conclusions:

• Understanding the molecular basis of HF is critical for advancing treatment strategies.
• Basic research provides essential insights into the complex pathophysiology of heart failure.
• Elucidating these mechanisms is key to realizing precision medicine for HF patients.