Effect of some fatty acid methyl esters on gastrointestinal carcinogenesis by N-methyl-N-nitro-N-nitrosoguanidine in rats. 1981

E J Arffmann, and K S Rasmussen, and F N Hansen

Methyl linoleate hydroperoxide (MLHP) and native methyl linoleate (ML) were tested for carcinogenicity toward the gastrointestinal (GI) tract in male specific-pathogen-free outbred Wistar rats. N-Methyl-N-nitro-N-nitrosoguanidine (MNNG) was given in the drinking water in a dose of 20 mg/liter when cocarcinogenic properties of the test substances were to be tested. MLHP and ML were fed by stomach tube and had no effect as complete carcinogens. Given concomitantly with MNNG, ML did not enhance carcinogenesis. MLHP in conjunction with MNNG was the only treatment which, as treatment with MNNG in a dose of 83 mg/liter, led to an increase of GI cancers in animals that died before day 354. Cumulative results after a maximum of 612 days showed a distribution of GI cancers in favor of the glandular stomach only after MLHP was given with MNNG.

UI MeSH Term Description Entries
D007441 Intubation, Gastrointestinal The insertion of a tube into the stomach, intestines, or other portion of the gastrointestinal tract to allow for the passage of food products, etc. Intubation, Nasogastric,Gastrointestinal Intubation,Gastrointestinal Intubations,Intubations, Gastrointestinal,Intubations, Nasogastric,Nasogastric Intubation,Nasogastric Intubations
D008041 Linoleic Acids Eighteen-carbon essential fatty acids that contain two double bonds. Acids, Linoleic
D008054 Lipid Peroxides Peroxides produced in the presence of a free radical by the oxidation of unsaturated fatty acids in the cell in the presence of molecular oxygen. The formation of lipid peroxides results in the destruction of the original lipid leading to the loss of integrity of the membranes. They therefore cause a variety of toxic effects in vivo and their formation is considered a pathological process in biological systems. Their formation can be inhibited by antioxidants, such as vitamin E, structural separation or low oxygen tension. Fatty Acid Hydroperoxide,Lipid Peroxide,Lipoperoxide,Fatty Acid Hydroperoxides,Lipid Hydroperoxide,Lipoperoxides,Acid Hydroperoxide, Fatty,Acid Hydroperoxides, Fatty,Hydroperoxide, Fatty Acid,Hydroperoxide, Lipid,Hydroperoxides, Fatty Acid,Peroxide, Lipid,Peroxides, Lipid
D008297 Male Males
D008769 Methylnitronitrosoguanidine A nitrosoguanidine derivative with potent mutagenic and carcinogenic properties. Methylnitrosonitroguanidine,Nitrosomethylnitroguanidine,Nitrosonitromethylguanidine,MNNG,N-Methyl-N'-nitro-N-nitrosoguanidine,N Methyl N' nitro N nitrosoguanidine
D001835 Body Weight The mass or quantity of heaviness of an individual. It is expressed by units of pounds or kilograms. Body Weights,Weight, Body,Weights, Body
D003043 Cocarcinogenesis The combination of two or more different factors in the production of cancer. Cocarcinogeneses
D005770 Gastrointestinal Neoplasms Tumors or cancer of the GASTROINTESTINAL TRACT, from the MOUTH to the ANAL CANAL. Gastrointestinal Cancer,Cancer of Gastrointestinal Tract,Cancer of the Gastrointestinal Tract,Neoplasms, Gastrointestinal,Cancer, Gastrointestinal,Cancers, Gastrointestinal,Gastrointestinal Cancers,Gastrointestinal Neoplasm,Gastrointestinal Tract Cancer,Gastrointestinal Tract Cancers,Neoplasm, Gastrointestinal
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

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