title: Induction of urinary bladder tumors in rats by administration nitrosomethyldodecylamine.
abstract: Nitrosomethyl-n-dodecylamine, a product of the reaction of dimethyl-n-dodecylamine with nitrous acid, was given to Sprague-Dawley rats by gavage in olive oil solution. Twice-weekly treatments with 12 mg of the nitrosamine for 50 weeks gave rise to 100% incidence of transitional cell carcinomas of the urinary bladder. In contrast with the tests of other N-nitroso compounds, this compound seemed to be more effective in males than in females; females died later with the tumor although the dose per unit body weight was higher in females than in males.
mesh_terms: D000818:Animals; D002273:Carcinogens; D002295:Carcinoma, Transitional Cell / Q000139:chemically induced* / Q000473:pathology; D005260:Female; D007441:Intubation, Gastrointestinal; D008297:Male; D009374:Neoplasms, Experimental / Q000139:chemically induced / Q000473:pathology; D009602:Nitrosamines / Q000008:administration & dosage / Q000633:toxicity*; D051381:Rats; D012737:Sex Factors; D001749:Urinary Bladder Neoplasms / Q000139:chemically induced* / Q000473:pathology
chemical_list: D002273:Carcinogens; D009602:Nitrosamines; C009914:N-nitrosomethyldodecylamine