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Vitamin D: It’s a linchpin to your immune system

By | March 7, 2010, 6:44 PM PST

Vitamin D is crucial to activating your immune system and a shortage of the vitamin may mean that T cells, the heat seeking missiles that attack infections, can’t react to fend off serious infections, according to research from the University of Copenhagen.

The findings, released Sunday, found that T cells, need to be triggered into action. Vitamin D acts as that trigger. Without Vitamin D, these T cells remain dormant.

Here’s the problem though. People generally get Vitamin D via sun exposure. However, humans are spending more times indoors and failing to get enough Vitamin D. Most Vitamin D is produced as a natural byproduct of the skin’s exposure to sunlight. It can also be found in fish liver oil, eggs and fatty fish and supplements.

The University of Copenhagen’s Department of International Health, Immunology and Microbiology found:

  • The first stage of T cell activation involves Vitamin D;
  • When the T cell is exposed to a foreign pathogen it has a biochemical reaction and extends an antenna known as the Vitamin D receptor;
  • Without Vitamin D, the T-cell ceases.

Add it up and the T cells can’t mobilize if they don’t find enough Vitamin D in the blood.

With this knowledge, researchers at the University of Copenhagen hope that they can better fight epidemics with new vaccines that can train immune systems.

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Larry Dignan

About Larry Dignan

Larry Dignan is editor-in-chief of SmartPlanet.

Larry Dignan

Larry Dignan

Editor-in-Chief

Larry Dignan is editor-in-chief of SmartPlanet and ZDNet. He is also editorial director of TechRepublic. Previously, he was an editor at eWeek, Baseline and CNET News. He has written for WallStreetWeek.com, Inter@ctive Week, New York Times and Financial Planning. He holds degrees from the Columbia University Graduate School of Journalism and the University of Delaware. He is based in New York but resides in Pennsylvania.

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Larry Dignan

Larry Dignan
Larry Dignan does not hold any investments in the companies he covers.
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RE: Vitamin D: It's a linchpin to your immune system
Is this supposed to be news? My father had my younger brother and me pirouetting naked in front of an ultraviolet sun lamp in 1960 during the long, rainy Oregon winters to boost our immune systems.
Posted by Tony R.
8th Mar 2010
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RE: Vitamin D: It's a linchpin to your immune system
vitamin D is found in milk and has been for dog's years ever since the wisconsin univ patented the procedure 70 or 80 years ago.
Posted by stilt21
8th Mar 2010
0 Votes
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Vit. D in milk isn't enough
A UCSD Med School presentation available on Research Channel, and
downloadable from http://grassrootshealth.net shows that the small
amount of Vit. D in milk isn't enough to activate the T cells. It
differs from individual to individual, but ask your doctor for a
blood test and follow the recommendations from grassrootshealth.net.

Vit. D3 is the version to take, and 300 caps, 2000 mg each, is $17 at
Costco. The aforementioned site cites studies which shows increases
in multiple diseases each time countries reduce their RDA of Vitamin
D3, and shows D3 is a proven prevention for diseases like breast and
colon cancer, diabetes and many others. It also shows the minimum
amount ever shown to be toxic is 12,000 mg, so taking up to 5 of
those 2,000 mg caps is the cheapest breast and colon cancer
preventative known, far more effective than anything anyone else has
come up with.

Please pass that website on to everyone you know; there's a wealth of
proof, epidemiologically sound, there for all.
Posted by johnbartley
8th Mar 2010
0 Votes
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RE: Vitamin D: It's a linchpin to your immune system
At latitudes/times of day of higher sun intensity, the exposure of swimsuit-clad body will produce 15 to 20 thousand International Units in about 20 minutes. There are three stages of Vit D production, beginning in the skin, then the liver, then the kidneys to produce the D3 version. There is a pretty good entry on Vit D in Wikipedia.
Posted by gstreb54
8th Mar 2010
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