theshowmecanuck writes to mention that in a recent study, researchers at the University of Alberta Department of Medicine have shown that an existing small, relatively non-toxic molecule, dichloroacetate (DCA), causes regression in several different cancers. From the article: "But there's a catch: the **** isn't patented, and pharmaceutical companies may not be interested in funding further research if the treatment won't make them a profit. In findings that 'astounded' the researchers, the molecule known as DCA was shown to shrink lung, breast and brain tumors in both animal and human tissue experiments."
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