INDUCTIONS OF ORNITHINE DECARBOXYLASE AND DNA-SYNTHESIS IN RAT STOMACH MUCOSA BY 1-NITROSOINDOLE-3-ACETONITRILE

  • 1 May 1987
    • journal article
    • research article
    • Vol. 78  (5) , 432-435
Abstract
Administration of 1-nitrosoindole-3-acetonitrile (NIAN) at doses of 40 to 300 mg/kg body weight by gastric intubation to male F344 rats induced up to 100-fold increase in ornithine decarboxylase activity with a maximum after 24 hr and up to 10-fold increase in DNA synthesis with a maximum after 16 hr in the pyloric mucosa of the stomach. These results suggest that NIAN has potential tumor-promoting activity in carcinogenesis in the glandular stomach.