Forestomach neoplasm induction in F344/DuCrj rats and B6C3F1 mice exposed to sesamol. 1992

S Tamano, and M Hirose, and H Tanaka, and E Asakawa, and K Ogawa, and N Ito
First Department of Pathology, Nagoya City University Medical School.

Sesamol was administered at a dietary level of 2% to groups of 30 male and female F344/DuCrj rats and B6C3F1 mice for 104 and 96 weeks, respectively. Squamous cell carcinomas in the forestomach were induced in nine of 29 (31%) effective male rats, three of 30 (10%) female rats, eleven of 29 (38%) male mice and five of 30 (17%) female mice treated with sesamol. Papillomas developed in ten of 29 (34%) male rats and fourteen of 30 (47%) female rats, but not in any of the mice. Hyperplasias developed in almost all rats and mice of both sexes. Significant differences from control values were found for all three lesions in rats and for carcinoma and hyperplasia categories in mice. The incidences of other tumors in the 2% sesamol group were comparable with control values. In conclusion, sesamol induces squamous cell carcinomas in the forestomach of rats and mice, males being more susceptible than females.

UI MeSH Term Description Entries
D006965 Hyperplasia An increase in the number of cells in a tissue or organ without tumor formation. It differs from HYPERTROPHY, which is an increase in bulk without an increase in the number of cells. Hyperplasias
D008297 Male Males
D009374 Neoplasms, Experimental Experimentally induced new abnormal growth of TISSUES in animals to provide models for studying human neoplasms. Experimental Neoplasms,Experimental Neoplasm,Neoplasm, Experimental
D010636 Phenols Benzene derivatives that include one or more hydroxyl groups attached to the ring structure.
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
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
D005260 Female Females
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
D013274 Stomach Neoplasms Tumors or cancer of the STOMACH. Cancer of Stomach,Gastric Cancer,Gastric Neoplasms,Stomach Cancer,Cancer of the Stomach,Gastric Cancer, Familial Diffuse,Neoplasms, Gastric,Neoplasms, Stomach,Cancer, Gastric,Cancer, Stomach,Cancers, Gastric,Cancers, Stomach,Gastric Cancers,Gastric Neoplasm,Neoplasm, Gastric,Neoplasm, Stomach,Stomach Cancers,Stomach Neoplasm
D015197 Carcinogenicity Tests Tests to experimentally measure the tumor-producing/cancer cell-producing potency of an agent by administering the agent (e.g., benzanthracenes) and observing the quantity of tumors or the cell transformation developed over a given period of time. The carcinogenicity value is usually measured as milligrams of agent administered per tumor developed. Though this test differs from the DNA-repair and bacterial microsome MUTAGENICITY TESTS, researchers often attempt to correlate the finding of carcinogenicity values and mutagenicity values. Tumorigenicity Tests,Carcinogen Tests,Carcinogenesis Tests,Carcinogenic Activity Tests,Carcinogenic Potency Tests,Carcinogen Test,Carcinogenesis Test,Carcinogenic Activity Test,Carcinogenic Potency Test,Carcinogenicity Test,Potency Test, Carcinogenic,Potency Tests, Carcinogenic,Test, Carcinogen,Test, Carcinogenesis,Test, Carcinogenic Activity,Test, Carcinogenic Potency,Test, Carcinogenicity,Test, Tumorigenicity,Tests, Carcinogen,Tests, Carcinogenesis,Tests, Carcinogenic Activity,Tests, Carcinogenic Potency,Tests, Carcinogenicity,Tests, Tumorigenicity,Tumorigenicity Test

Related Publications

S Tamano, and M Hirose, and H Tanaka, and E Asakawa, and K Ogawa, and N Ito
October 1990, Food and chemical toxicology : an international journal published for the British Industrial Biological Research Association,
S Tamano, and M Hirose, and H Tanaka, and E Asakawa, and K Ogawa, and N Ito
July 1993, Jikken dobutsu. Experimental animals,
S Tamano, and M Hirose, and H Tanaka, and E Asakawa, and K Ogawa, and N Ito
September 2003, Archives of toxicology,
S Tamano, and M Hirose, and H Tanaka, and E Asakawa, and K Ogawa, and N Ito
April 1988, Laboratory animals,
S Tamano, and M Hirose, and H Tanaka, and E Asakawa, and K Ogawa, and N Ito
January 1997, Journal of applied toxicology : JAT,
S Tamano, and M Hirose, and H Tanaka, and E Asakawa, and K Ogawa, and N Ito
September 1998, Toxicology letters,
S Tamano, and M Hirose, and H Tanaka, and E Asakawa, and K Ogawa, and N Ito
November 2011, Food and chemical toxicology : an international journal published for the British Industrial Biological Research Association,
S Tamano, and M Hirose, and H Tanaka, and E Asakawa, and K Ogawa, and N Ito
August 1987, Environmental health perspectives,
S Tamano, and M Hirose, and H Tanaka, and E Asakawa, and K Ogawa, and N Ito
December 1990, Japanese journal of cancer research : Gann,
S Tamano, and M Hirose, and H Tanaka, and E Asakawa, and K Ogawa, and N Ito
March 1993, Carcinogenesis,
Copied contents to your clipboard!