Saturday, June 30, 2012

Why is vitamin D so important?


British and Canadian scientists have found a link between vitamin D and several gene carriers of disease, which further confirms that vitamin D may be a risk factor for diabetes, cancer and other diseases.

Scientists say there are more numerous evidence that low vitamin D levels as a result of inadequate nutrition or poor exposure to sunlight, greatly increases the risk of various types of diseases.

But it is not clear any impact on vitamin D has an autoimmune disease such as multiple sclerosis, juvenile diabetes, rheumatoid arthritis and colorectal cancer and leukemia.

Experts say that vitamin D acts to bind to segments of human DNA molecule involved in making proteins, which in turn regulate the function of cells.

To identify the location of vitamin D receptor, British and Canadian scientists have made a genetic map of chemical bonds and identified more than two thousand and 700 points around which gather receptors.

The greatest number of receptors for vitamin D is found in the part of the human genome that are associated with autoimmune diseases and directly affect the 229 genes associated with multiple sclerosis, juvenile diabetes and Crohn's disease (bowel disease).

From the Center Velkam Trust (Welcome Trust) for Human Genetics at Oxford University, said that it is possible that vitamin D deficiency is a cause of some of these diseases. "This evidence strongly supports the idea, but that it could be with certainty, we ought to do testing to prove that vitamin D actually prevents the development of these diseases."

Experts predict that one billion people worldwide suffer from lack of vitamin D, which puts them in the group with increased risk of chronic diseases.

Vitamin D deficiency affects the health and bone development. In pregnant women, experts say that very low levels of vitamin D can be fatal for mother and child at birth.

One of the leading causes of lack of vitamin D is insufficient exposure to sunlight. Scientists note that the incidence of MS increased in the far north of the equator, where days are shorter and less intense sunlight.

Oily fish such as salmon, herring and trout, contain large amounts of vitamin D, and consumption of these fish can help prevent the lack of vitamin D.

However, researchers at Oxford University say it is still very difficult to maintain adequate levels of mikrohranećeg ingredient, and added that it is probably necessary - especially for those lighter color - take a daily vitamin D in the amount of two to four thousand units. Some experts recommend doses up to 10 thousand units per day.

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