Cardiology

Vitamin D, omega-3 do not cut heart failure hospitalization

(HealthDay)—Neither vitamin D nor marine omega-3 (n-3) fatty acid supplementation significantly reduces the rate of first heart failure hospitalization, according to a research letter published online Nov. 11 in Circulation ...

Diseases, Conditions, Syndromes

Supplements don't preserve kidney health in type 2 diabetes

Supplements of vitamin D and omega-3 fatty acids (often sold as fish oil) do not help people with type 2 diabetes stave off chronic kidney disease, according to findings from the largest clinical study to date of the supplements ...

Health

Vitamin D deficiency and poor muscle function in the over-60s

New research from Trinity College Dublin shows that vitamin D deficiency is an important determinant of poor skeletal muscle function in adults aged 60 years and over. Maintaining skeletal muscle function throughout life ...

Cardiology

AI maps routes to heart disease

A new study in the Journal of Biomedical Informatics uses machine learning on unlabeled electronic health record (EHR) data to shed light on the emergence of cardiovascular disease (CVD).

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Vitamin D

Vitamin D is a group of fat-soluble prohormones, the two major forms of which are vitamin D2 (or ergocalciferol) and vitamin D3 (or cholecalciferol). The term vitamin D also refers to metabolites and other analogues of these substances. Vitamin D3 is produced in skin exposed to sunlight, specifically ultraviolet B radiation.

Vitamin D plays an important role in the maintenance of organ systems.

Vitamin D deficiency can result from inadequate intake coupled with inadequate sunlight exposure; disorders that limit its absorption; conditions that impair conversion of vitamin D into active metabolites, such as liver or kidney disorders; or, rarely, by a number of hereditary disorders. Deficiency results in impaired bone mineralization and leads to bone softening diseases rickets in children and osteomalacia in adults, and possibly contributes to osteoporosis. However, sunlight exposure, to avoid deficiency, carries other risks, including skin cancer; this risk is avoided with dietary absorption, either through diet or as a dietary supplement.

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