© 1982 Oxford University Press
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Induction of colorectal squamous cell carcinomas in rats by dextran sulfate sodium
1Department of Carcinogenesis and Cancer Susceptibility, Institute of Medical Science, University of Tokyo Shirokanedai 4-6-1, Minatoku, Tokyo 108, Japan
2Division of Community/Occupational Medicine Box 2914, Duke University Medical Center, Durham, NC 27710, USA
ACI rats, 15 males and 15 females, were fed a diet containing 1% dextran sulfate sodium for 660 days. Twenty two of 29 surviving rats developed intestinal tumors between 288 and 660 days. Most tumors consisted of papillomas, and 4 squamous cell carcinomas were also induced, in addition to adenomas and adenocarcinomas. No intestinal tumors were observed in rats of the control group.
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