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Strong promoting activity of reversible uracil-induced urolithiasis on urinary bladder carcinogenesis in rats initiated with N-butyl-N-(4-hydroxybutyl)nitrosamine. 1987

T Shirai, and Y Tagawa, and S Fukushima, and K Imaida, and N Ito
First Department of Pathology, Nagoya City University Medical School, Japan.

The tumor-promoting effect of uracil-induced calculi on rat urinary bladder carcinogenesis was investigated in male F344 rats pretreated with N-butyl-N-(4-hydroxybutyl)nitrosamine (BBN). Since uracil-induced calculi and papillomatosis of the bladder are reversible, uracil was given for a limited period after the treatment with BBN. Animals were given 0.05% BBN in their drinking water for 4 wk and then treated with uracil as 3% of the diet for 8 or 16 wk. After the uracil treatment, rats were given basal diet without uracil until Wk 28 of the experiment. Animals were killed from each group at the end of either Wk 12, 20, or 28. The incidence of carcinoma of the bladder was 40% after only 8 wk of uracil treatment following BBN initiation and increased to 100% when uracil treatment was extended to 16 wk. After discontinuation of uracil treatment, the papillomatosis disappeared, but the incidence of carcinoma steadily increased with increasing time. In the control group given BBN alone, only 1 of 16 rats had carcinoma at Wk 28. The present findings clearly demonstrate that uracil-induced urolithiasis had a strong promoting activity on BBN bladder carcinogenesis.

UI MeSH Term Description Entries
D008297 Male Males
D009602 Nitrosamines A class of compounds that contain a -NH2 and a -NO radical. Many members of this group have carcinogenic and mutagenic properties. Nitrosamine
D011916 Rats, Inbred F344 An inbred strain of rat that is used for general BIOMEDICAL RESEARCH purposes. Fischer Rats,Rats, Inbred CDF,Rats, Inbred Fischer 344,Rats, F344,Rats, Inbred Fisher 344,CDF Rat, Inbred,CDF Rats, Inbred,F344 Rat,F344 Rat, Inbred,F344 Rats,F344 Rats, Inbred,Inbred CDF Rat,Inbred CDF Rats,Inbred F344 Rat,Inbred F344 Rats,Rat, F344,Rat, Inbred CDF,Rat, Inbred F344,Rats, Fischer
D001744 Urinary Bladder Calculi Stones in the URINARY BLADDER; also known as vesical calculi, bladder stones, or cystoliths. Urinary Bladder Stones,Vesical Calculi,Bladder Calculi,Bladder Stones,Calculi of Urinary Bladder,Cystoliths,Bladder Calculi, Urinary,Bladder Calculus,Bladder Calculus, Urinary,Bladder Stone,Bladder Stone, Urinary,Bladder Stones, Urinary,Calculi, Bladder,Calculi, Urinary Bladder,Calculi, Vesical,Calculus, Bladder,Calculus, Urinary Bladder,Calculus, Vesical,Cystolith,Stone, Bladder,Stone, Urinary Bladder,Stones, Bladder,Stones, Urinary Bladder,Urinary Bladder Calculus,Urinary Bladder Stone,Vesical Calculus
D001749 Urinary Bladder Neoplasms Tumors or cancer of the URINARY BLADDER. Bladder Cancer,Bladder Neoplasms,Cancer of Bladder,Bladder Tumors,Cancer of the Bladder,Malignant Tumor of Urinary Bladder,Neoplasms, Bladder,Urinary Bladder Cancer,Bladder Cancers,Bladder Neoplasm,Bladder Tumor,Cancer, Bladder,Cancer, Urinary Bladder,Neoplasm, Bladder,Neoplasm, Urinary Bladder,Tumor, Bladder,Tumors, Bladder,Urinary Bladder Neoplasm
D002085 Butylhydroxybutylnitrosamine A substituted carcinogenic nitrosamine. Butylbutanolnitrosamine,N-Butyl-N-(4-hydroxybutyl)nitrosamine,N-Nitroso-N-butyl-(4-hydroxybutyl)amine,N-Nitrosobutyl-4-hydroxybutylamine,N Nitrosobutyl 4 hydroxybutylamine
D002294 Carcinoma, Squamous Cell A carcinoma derived from stratified SQUAMOUS EPITHELIAL CELLS. It may also occur in sites where glandular or columnar epithelium is normally present. (From Stedman, 25th ed) Carcinoma, Epidermoid,Carcinoma, Planocellular,Carcinoma, Squamous,Squamous Cell Carcinoma,Carcinomas, Epidermoid,Carcinomas, Planocellular,Carcinomas, Squamous,Carcinomas, Squamous Cell,Epidermoid Carcinoma,Epidermoid Carcinomas,Planocellular Carcinoma,Planocellular Carcinomas,Squamous Carcinoma,Squamous Carcinomas,Squamous Cell Carcinomas
D002295 Carcinoma, Transitional Cell A malignant neoplasm derived from TRANSITIONAL EPITHELIAL CELLS, occurring chiefly in the URINARY BLADDER; URETERS; or RENAL PELVIS. Carcinomas, Transitional Cell,Cell Carcinoma, Transitional,Cell Carcinomas, Transitional,Transitional Cell Carcinoma,Transitional Cell Carcinomas
D003043 Cocarcinogenesis The combination of two or more different factors in the production of cancer. Cocarcinogeneses
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia

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