Effect of high-fat diet on colon carcinogenesis in F344 rats treated with 1,2-dimethylhydrazine, methylazoxymethanol acetate, or methylnitrosourea. 1977

B S Reddy, and K Watanabe, and J H Weisburger

Male inbred F344 weanling rats were fed semipurified diets containing 20 or 5% beef fats. At 7 weeks of age, all animals except controls were given 1,2-dimethylhydrazine [DMH (150 mg/kg body weight s.c.; one dose)], methylazoxymethanol acetate [MAM acetate (35 mg/kg body weight i.p.; one dose)], or methylnitrosourea (2.5 mg/rat/week intrarectally; two doses), and autopsied 35 weeks later. No major differences were observed in the frequency (number of rats with tumor) of DMH- or MAM acetate-induced duodenal, ear duct, and kidney tumors between the rats fed diets containing 20 or 5% fat. However, the animals fed the diet containing 20% fat had slight although not statistically significant influence on the incidence of adenomas and adenocarcinomas in the colon.

UI MeSH Term Description Entries
D008297 Male Males
D008460 Meat The edible portions of any animal used for food including cattle, swine, goats/sheep, poultry, fish, shellfish, and game. Meats
D008746 Methylazoxymethanol Acetate The aglycone of CYCASIN. It acts as a potent carcinogen and neurotoxin and inhibits hepatic DNA, RNA, and protein synthesis. (Methyl-ONN-azoxy)methanol Acetate,Acetate, Methylazoxymethanol
D008763 Methylhydrazines Hydrazines substituted by one or more methyl groups in any position.
D008770 Methylnitrosourea A nitrosourea compound with alkylating, carcinogenic, and mutagenic properties. Nitrosomethylurea,N-Methyl-N-nitrosourea,NSC-23909,N Methyl N nitrosourea,NSC 23909,NSC23909
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
D009607 Nitrosourea Compounds A class of compounds in which the core molecule is R-NO, where R is UREA. Compounds, Nitrosourea
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
D002417 Cattle Domesticated bovine animals of the genus Bos, usually kept on a farm or ranch and used for the production of meat or dairy products or for heavy labor. Beef Cow,Bos grunniens,Bos indicus,Bos indicus Cattle,Bos taurus,Cow,Cow, Domestic,Dairy Cow,Holstein Cow,Indicine Cattle,Taurine Cattle,Taurus Cattle,Yak,Zebu,Beef Cows,Bos indicus Cattles,Cattle, Bos indicus,Cattle, Indicine,Cattle, Taurine,Cattle, Taurus,Cattles, Bos indicus,Cattles, Indicine,Cattles, Taurine,Cattles, Taurus,Cow, Beef,Cow, Dairy,Cow, Holstein,Cows,Dairy Cows,Domestic Cow,Domestic Cows,Indicine Cattles,Taurine Cattles,Taurus Cattles,Yaks,Zebus
D003110 Colonic Neoplasms Tumors or cancer of the COLON. Cancer of Colon,Colon Adenocarcinoma,Colon Cancer,Cancer of the Colon,Colon Neoplasms,Colonic Cancer,Neoplasms, Colonic,Adenocarcinoma, Colon,Adenocarcinomas, Colon,Cancer, Colon,Cancer, Colonic,Cancers, Colon,Cancers, Colonic,Colon Adenocarcinomas,Colon Cancers,Colon Neoplasm,Colonic Cancers,Colonic Neoplasm,Neoplasm, Colon,Neoplasm, Colonic,Neoplasms, Colon

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