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Vitamin D Testing

Analytical & Clinical Conundrums



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Interaction Between Vitamin D and Calcium

Slide 6

January 2009

The interaction between vitamin D and calcium is very complex. When calcium gets low in circulation, calcium sends a receptor that will result in elevation of PTH. PTH will help resorbing calcium from the bone.  25D will be converted to 1,25-hydroxy vitamin D. 1,25-dihydroxy vitamin D will help in the absorption of calcium and phosphorus from the intestine. Calcium, thus, will be deposited back into the bones.

Interaction Between Vitamin D and Calcium

 


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