Long-term exposure to triclosan—a popular antimicrobial agent in soaps, detergents, and plastics, still in use in the Philippines—has been found to promote liver cancer in mice. The study was conducted by scientists from the University of California (San Diego and Davis) and the Salk Institute for Biological Studies and was published in the journal Proceedings of the National Academy of Sciences.
In this study, the researchers fed mice with chow consisting of 0.08% triclosan [5-chloro-2-(2, 4-dichlorophenoxy)phenol]. After eight months of exposure (roughly equivalent to 18 human years), the mice showed enlarged livers and liver fibrosis. Previous studies have shown that liver fibrosis, or the formation of excess fibrous connective tissue in the liver, promotes liver cancer.
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