Rat strain differences in catechol carcinogenicity to the stomach

¹First Department of Pathology, Nagoya City University Medical School, Japan.

Food and Chemical Toxicology : an International Journal Published for the British Industrial Biological Research Association

|February 1, 1995

Abstract:

The carcinogenic potential of catechol was compared in male Wistar, WKY, Lewis and SD strains of rats. Groups of 30 animals were treated with powdered diet containing 0.8% catechol for 104 wk and then examined histopathologically. Induction of glandular stomach adenocarcinomas occurred in 67, 73 and 77% of Wistar, Lewis and SD animals, respectively, but in only 10% of WKY rats. In addition, catechol induced forestomach papillomas in 20% (P < 0.05), and squamous cell carcinomas in 3% of SD rats. The results thus indicate that Wistar, Lewis and SD rats are much more susceptible than WKY rats to induction of glandular stomach adenocarcinomas by 0.8% catechol, and that this phenolic antioxidant also possesses weak carcinogenic activity for the SD rat forestomach.

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Abstract:

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