Thursday, August 22, 2013

Vitamin D protects against colon cancer: Study

Courtesy International News Network

A new study has confirmed the pivotal role of vitamin D, specifically its receptor (VDR), in slowing down the action of a key protein in the carcinogenic transformation process of colon cancer cells.

Researchers at the Vall d`Hebron Institute of Oncology (VHIO) collaborated with the Alberto Sols Institute of Biomedical Research (CSIC-UAB) for the study. 


This protein, known as beta-catenin, which is normally found in intestinal epithelial cells where it facilitates their cohesion, builds up in large quantities in other areas of the cells when the tumor transformation begins.
As a result of these changes, the protein is retained in the cell nucleus, where it facilitate the carcinogenic process, and this is the point at which vitamin D intervenes, or rather, the vitamin D receptor (VDR). 

“Our study has confirmed the pivotal role of the VDR in controlling the anomalous signal that sparks off the growth and uncontrolled proliferation of colon cells which, in the final instance, ends up causing a tumor to emerge,” said Hector Palmer, the coordinator of the study and head of the VHIO’s Stem Cells and Cancer laboratory. 

“The stimulation of this receptor suppresses the action of the beta-catenin protein, intercepting the series of events that change the intestinal cell into a malignant tumor cell,” he added. 

The researchers analyzed the effect of the VDR on human colon cancer cell cultures and observed that the concentration of the altered protein, beta-catenin, increased in cells without the VDR.
In light of these findings, chronic vitamin D deficiency represents a risk factor in the development of more aggressive colon tumors. 

These results were being published in the journal PLoS One.

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nutraMetrix Isotonix Vitamin D with K2 contains vitamin D3, the metabolically active form of vitamin D, along with vitamin K2, a form of vitamin K which supports vascular health and calcium utilization. Vitamin D plays an important role in bone health, heart health and immune support, while working with vitamin K to support normal absorption of calcium and promote healthy arteries. nutraMetrix Isotonix Vitamin D is the first of its kind to deliver both of these powerful vitamins with isotonic delivery.

Vitamin K is included in nutraMetrix Isotonix Vitamin D with K2 because of its unique partnership with vitamin D. Vitamins K and D work together to support calcium absorption and utilization. Vitamin K supports the normal delivery of calcium to the bones and promotes healthy arteries.
At least two naturally-occurring forms of vitamin K have been identified and are known as K1 and K2. While there are many similarities between these two forms of vitamin K, they are distinguished by their important differences. The most significant difference between K1 and K2 is their chemical structure which results in different pharmacokinetic properties. Vitamin K1 is retained primarily in the liver where, at high doses, it may interfere with the action of warfarin and other anticoagulant medications.  

Vitamin K2 has a different mechanism of action. It is transported primarily to bones and blood vessels. Vitamin K2 helps to maintain bone mass, support calcium utilization and promote elasticity of blood vessels.   


Some studies have concluded that vitamin K2 does not interfere with anticoagulant medications.* However, most products containing vitamin K (including K1 and/or K2) warn users taking anticoagulants not to take the product. If you are currently taking warfarin or another anticoagulant medication, you should consult your physician before taking any product containing vitamin K1 or K2.

Isotonix dietary supplements are delivered in an isotonic solution. This means that the body has less work to do to obtain maximum absorption of the nutrients. The isotonic state of the suspension allows nutrients to pass directly into the small intestine and rapidly absorb into the bloodstream. With Isotonix products, little nutritive value is lost, making the absorption of nutrients highly efficient while delivering maximum results.


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