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"Too Much Vitamin C Not Good for Diabetics' Hearts"
"As professor Steve Hickey comments, "Why would a diabetic want low grade scurvy?"
There is an association, but not a confirmed causal relationship, between high-doses of these supplemental vitamins and slightly higher mortality rates. This is like saying most children killed in pedestrian accidents have been found wearing tennis shoes, so the tennis shoes must have caused the accidents. Because those under study were ill, there is also an association between their mortality and the prescription drugs they must have been taking.
Note: There may be a theoretical problem in diabetics. Vitamin C is structurally similar to glucose and its uptake into cells follows the same insulin-mediated pathways. If glucose isn't absorbed by cells, as in Type 2 diabetes, vitamin C and other nutrients might have the same deadly difficulty. The problem is not limited to heart disease, and the solution is to eliminate trans fats and to supplement Omega-3 fatty acids. This protocol restores cell membrane permeability to both glucose and ascorbic acid." - Owen Fonorow
Growth Factors Increase Vitamin C Intake
NEW YORK (Reuters) -- Vitamin C plays an important role in the body's ability to fight disease, yet the body is not able to manufacture the vitamin itself. Now, researchers have discovered how immune cells accumulate and retain vitamin C, a finding which may lead to the development of new drugs to boost the immune system.
Dr. David Golde and colleagues at Memorial Sloan-Kettering Cancer Center in New York City, previously determined that growth factors caused immune cells to absorb more glucose -- a process that supplies the metabolic fuel that helps cells function. A form of one of the growth factors -- granulocyte-macrophate colony-stimulating factor (GM-CSF) -- is currently used to treat cancer patients after bone marrow transplantation.
In their new study, reported in the journal Blood, the researchers found that the same growth factors that control the growth and production of immune cells also increase their ability to absorb vitamin C.
"We now know that the growth factors that boost immunity also increase the amount of vitamin C in the immune cells," confirmed Golde in a statement from Memorial Sloan-Kettering Cancer Center.
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