Tyrosine and tryptophan are amino acids that can be converted by bacterial reactions in toxins and carcinogens. The tryptophanase containing Bacteroides thetaiotamicron, an organism found in the intestine, can convert tryptophan to indole a compound with carcinogenic activity (75).
Tyrosine is converted to phenol by aerobic intestinal bacteria, and to p-cresol by intestinal anaerobic bacteria. These metabolites of tyrosine are not found in the urine of germfree mice. Phenol and cresol have been shown to be tumor promoters in mice.
Was this article helpful?
Learning About 10 Ways Fight Off Cancer Can Have Amazing Benefits For Your Life The Best Tips On How To Keep This Killer At Bay Discovering that you or a loved one has cancer can be utterly terrifying. All the same, once you comprehend the causes of cancer and learn how to reverse those causes, you or your loved one may have more than a fighting chance of beating out cancer.