Vitamin D in heart failure

Area of Science:

• Cardiology
• Endocrinology
• Nutritional Science

Background:

• Growing evidence links vitamin D to cardiovascular health, with deficiency identified as a significant risk factor.
• The human heart possesses vitamin D signaling pathways, suggesting a direct role in cardiac physiology and outcomes.
• Myocardial remodeling is central to heart failure (HF), a condition with increasing global impact.

Purpose of the Study:

• To critically appraise the scientific literature on vitamin D's role in cardiovascular disease.
• To review epidemiologic, supplementation, animal model, and in vitro data.
• To evaluate vitamin D's potential as a therapeutic adjunct for HF prevention.

Main Methods:

• Comprehensive review and critical appraisal of existing scientific literature.
• Analysis of epidemiologic studies, clinical supplementation trials, and preclinical research (animal models, in vitro studies).

Main Results:

• Substantial associative data link vitamin D status to cardiovascular outcomes.
• Evidence supports vitamin D's involvement in key pathogenic processes like cardiac hypertrophy and extracellular matrix remodeling.
• Limited mechanistic data exist to support vitamin D supplementation for HF prevention post-myocardial injury.

Conclusions:

• While vitamin D is associated with cardiovascular health and influences cardiac remodeling, its therapeutic role in preventing heart failure requires further mechanistic investigation.
• Current evidence does not support vitamin D supplementation as a primary strategy for preventing heart failure following myocardial injury.