Vitamin D Crucial to Activating Immune Defenses

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In summary: The study, "Vitamin D and Cardiovascular Disease: a Systematic Review and Meta-analysis of Randomized Controlled Trials" was published in the journal "The American Journal of Cardiology."In summary, a study found that vitamin D deficiency is associated with increased risk for coronary artery disease. Treating vitamin D deficiency with supplements may help to prevent or reduce a person's risk for cardiovascular disease and a host of other chronic conditions.
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Count Iblis
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Professor Carsten Geisler from the Department of International Health, Immunology and Microbiology explains that "when a T cell is exposed to a foreign pathogen, it extends a signaling device or 'antenna' known as a vitamin D receptor, with which it searches for vitamin D. This means that the T cell must have vitamin D or activation of the cell will cease. If the T cells cannot find enough vitamin D in the blood, they won't even begin to mobilize. "
 
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http://www.timesonline.co.uk/tol/news/uk/scotland/article7061778.ece

Only one in ten children, aged six to 15 years, taking the sunshine vitamin in a clinical trial came down with flu compared with one in five given a dummy tablet. Mitsuyoshi Urashima, the Japanese doctor who led the trial, told The Times that vitamin D was more effective than vaccines in preventing flu.

Vitamin D was found to be even more effective when the comparison left out children who were already given extra vitamin D by their parents, outside the trial. Taking the sunshine vitamin was then shown to reduce the risk of flu to a third of what it would otherwise be.
 
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http://www.physorg.com/news187879711.html" [Broken]

Researchers at the Intermountain Medical Center Heart Institute last fall demonstrated the link between vitamin D deficiency and increased risk for coronary artery disease. These new studies show that treating vitamin D deficiency with supplements may help to prevent or reduce a person's risk for cardiovascular disease and a host of other chronic conditions. They also establish what level of vitamin D further enhances that risk reduction.

Study findings will be presented at the American College of Cardiology 59th annual scientific session in Atlanta.
 
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What is vitamin D and why is it important for immune defenses?

Vitamin D is a fat-soluble vitamin that is essential for maintaining strong bones and teeth. It is also crucial for activating the immune system, as it helps regulate the function of immune cells and aids in the production of antimicrobial proteins.

How does vitamin D activate immune defenses?

Vitamin D plays a key role in activating immune cells, particularly T cells and B cells, which are responsible for fighting off infections and diseases. It also helps stimulate the production of cytokines, which are molecules that regulate the immune response.

What are the sources of vitamin D?

The primary source of vitamin D is sunlight, as the body can produce it when the skin is exposed to UV rays. It can also be obtained through certain foods, such as fatty fish, egg yolks, and fortified dairy products. Vitamin D supplements are also available.

How much vitamin D do I need for optimal immune function?

The recommended daily intake of vitamin D varies depending on age and health conditions. However, most adults need at least 600-800 IU (international units) of vitamin D per day for optimal immune function. It is important to consult with a doctor to determine the appropriate dosage for your specific needs.

Can vitamin D deficiency affect immune defenses?

Yes, a deficiency in vitamin D can weaken the immune system and make individuals more susceptible to infections and diseases. Low levels of vitamin D have been linked to increased risk of respiratory infections, autoimmune disorders, and even cancer. It is important to maintain adequate levels of vitamin D for optimal immune function.

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