Vitamin D strengthens innate immunity against viral infections

http://www.news-medical.net/news/20120430/Vitamin-D-strengthens-innate-immunity-against-viral-infections.aspx

Vitamin D may be known as the sunshine vitamin, but a new research report appearing in the Journal of Leukocyte Biology shows that it is more than that. According to the report, insufficient levels of vitamin D are related to a deficiency in our innate immune defenses that protect us from infections, neoplasias or autoimmune diseases

Scientists find vitamin D is crucial in human immune response to tuberculosis
http://newsroom.ucla.edu/releases/scientists-find-vitamin-d-crucial-216881

Vitamin D — a natural hormone, rather than a vitamin — is known to be instrumental in bone development but also may protect against cancer and autoimmune diseases and fight infections.

The team found that T cells, which are white blood cells that play a central role in immunity, release a protein called interferon-g that triggers communication between cells and directs infected immune cells to attack the invading tuberculosis bacteria. However, this activation requires sufficient levels of vitamin D to be effective

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