Vitamin C Slows Cancer?

I am getting more preoccupied with health news as my own mortality creeps up (and chases my hairline away).

Vitamin C Slows Cancer?
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An injection of a high dose of vitamin C may be able to hold back the advance of some cancers, U.S. scientists claim.

In a paper published this week in the Proceedings of the National Academy of Sciences, Qi Chen, of the National Institutes of Health, and colleagues write that injected vitamin C (ascorbate) can halve the growth rate of tumors in mice. High concentrations of ascorbate generate hydrogen peroxide, which is known to slow tumors in mice, they write.

The NIH team tested high-concentration vitamin C injections on 43 cancers and five normal cell lines and found that high concentrations of ascorbate had anti-cancer effects in 75 percent of cancer cell lines tested and spared all the normal cells. In mice with rapidly spreading ovarian, pancreatic, and brain tumors, injections reduced tumor growth by 41 percent and appeared to control spreading to other organs.

Other specialists urged caution yesterday. Dr. Alison Ross, of the British charity Cancer Research UK, told the British Broadcasting Corp. the work was encouraging "but it's at a very early stage because it involves cells grown in the lab and mice..."

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