Vitamin C: possible cancer-killing promise

Sep 12, 2005

High-dose intravenous vitamin C may be effective in treating cancer, newly published research indicates.

Studies during the 1970s first suggested administration of high doses of ascorbate might provide a clinical benefit for treating cancer, but later studies using the same high doses found no benefit.

However, researchers now say the original studies used intravenous and oral ascorbate, while subsequent studies used only oral administration. Recognizing those differences might account for the disparate clinical outcomes, Mark Levine and colleagues at the National Institutes of Health reexamined intravenous ascorbate therapy in cultured cancer cell lines.

The researchers found ascorbate killed cancer cells at concentrations that would only be achievable through intravenous infusion. Normal cells were not affected by ascorbate at any concentration.

Additionally, the scientists report ascorbate treatment led to the formation of hydrogen peroxide, a chemical that can kill cells, suggesting a potential mechanism for the therapy.

The research appears in this week's online, early edition of the Proceedings of the National Academy of Sciences.

Copyright 2005 by United Press International

Explore further: New study shows South Africans using milk-based paint 49,000 years ago

Related Stories

Monster black hole wakes up after 26 years

4 hours ago

Over the past week, ESA's Integral satellite has been observing an exceptional outburst of high-energy light produced by a black hole that is devouring material from its stellar companion.

HBO launches two new shows on Facebook

5 hours ago

HBO posted the first episodes of its two newest comedy series on Facebook on Thursday, turning the social networking site into a new platform for TV viewing.

A look at challenges Uber has faced around the world

5 hours ago

Taxi drivers in France went on strike Thursday, smashing car windows, setting tires on fire and blocking traffic to express their displeasure with American ride-hailing service Uber. Despite an October law ...

Recommended for you

User comments : 0

Please sign in to add a comment. Registration is free, and takes less than a minute. Read more

Click here to reset your password.
Sign in to get notified via email when new comments are made.