Oncology & Cancer

Skin cancer in people of color

Dark skin does provide some protection against the sun's ultraviolet rays, but it's a myth that people with dark skin tones are immune to the harmful effects of UV radiation.

Diseases, Conditions, Syndromes

Tuberculosis spread 'depends on moisture in the air'

Climatic factors such as dew point temperature, relative humidity and atmospheric temperature that affect water droplet formation are crucial for the survival and spread of tuberculosis (TB), an airborne infectious disease, ...

Immunology

Researchers help develop rapid, reliable vitamin D test

A McMaster researcher is part of a team that has developed a more efficient way to screen for vitamin D deficiency that could become a tool in the fight against COVID-19 and other respiratory illnesses.

Health

How vitamin D delivers on cardio health

Free from the sun, vitamin D delivers a natural source for one of the hormones essential to our bodies, especially the bones. But when you're down on this essential nutrient, it's not only your bones that could suffer, but ...

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Hypovitaminosis D

Hypovitaminosis D is a deficiency of Vitamin D. It can result from: inadequate intake coupled with inadequate sunlight exposure (in particular sunlight with adequate ultra violet B rays), 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 contributes to osteoporosis. Osteomalacia may also occur rarely as a side-effect of phenytoin use.

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