美国科学60秒 SSS 2013-05-28（在线收听）

 　　We've discovered that Vitamin C kills MT cells. TB research William Jacob, with the Albert Einstein College of Medicine in the Bronx. And in fact it works not only on the multidrug-resistent strains but totally drug-resistent strains as well. Jacobs was studying whether the TB drug isoniazid was being inactived by the prescence of a particular amino-acid cysteine, which in chemical terms access reducing agent by donating electrons. So we added these with the isoniazid expecting that we'd get resistance. And to our surprise it acutally led to sterilization. This reducing agent acutally induced free radicals. Free radicals are highly reactive chemical entities that can damage cells. And with the free radicals that were killing the TB, we decided to try another reducing agent-Vitamin C. We solved just like the other reducing agent it in combination isoniazid sterilized culture. Even more surprisingly, was when we just had Vitamin C alone, we discovered that Vitamin C kills tuberlosis. We've only been able to demonstrate this in a test tube, and we don't know if it will work in humans. But before this study, you wouldn't even thought about trying in humans.