Vitamin D and cardiovascular disease.

Area of Science:

• Cardiovascular Medicine
• Endocrinology
• Nutritional Science

Background:

• Cardiovascular disease (CVD) is a leading global cause of illness and death.
• Emerging evidence suggests vitamin D deficiency may be a risk factor for conditions beyond its traditional associations, including cancer and CVD.
• Low levels of 25-hydroxyvitamin D are increasingly recognized as a potential contributor to cardiovascular health issues.

Purpose of the Study:

• To review the existing evidence linking low 25-hydroxyvitamin D levels with cardiovascular disease (CVD).
• To explore the potential mechanisms through which vitamin D deficiency might influence cardiovascular health.
• To highlight the implications for patient care and public health policy if this association is confirmed.

Main Methods:

• Literature review of studies examining the association between vitamin D levels and CVD.
• Analysis of evidence connecting vitamin D deficiency to established CVD risk factors (hypertension, diabetes).
• Examination of studies correlating vitamin D status with markers of atherosclerosis and cardiovascular events.

Main Results:

• Vitamin D deficiency is associated with increased risk factors for CVD, including hypertension and diabetes mellitus.
• Low vitamin D levels correlate with subclinical atherosclerosis markers like intima-media thickness and coronary calcification.
• Associations have been observed between vitamin D deficiency and cardiovascular events such as myocardial infarction, stroke, and heart failure.

Conclusions:

• Vitamin D deficiency may contribute to CVD development through its links with risk factors like diabetes and hypertension.
• Direct effects of vitamin D on the cardiovascular system, involving receptors in cardiomyocytes, vascular smooth muscle, and endothelial cells, are plausible.
• While evidence suggests a potential antiatherosclerotic role for vitamin D, further prospective, randomized, and mechanistic studies are essential to confirm the association and guide clinical practice and health policy.