
Tumors and precancerous lesions of the gastrointestinal tract were induced in aquarium fish guppy by dinitrosopiperazine and nitrosodiethylamine dissolved in aquarium water. Nitrosodiethylamine appeared to produce a stronger blastogenic effect than dinitrosopiperazine. Since tumors develop several weeks after exposure to carcinogens, this animal species may be used for express testing nitrosocompounds for blastogenicity.
Male, Fish Diseases, Nitrosamines, Fishes, Animals, Diethylnitrosamine, Female, Neoplasms, Experimental, Precancerous Conditions
Male, Fish Diseases, Nitrosamines, Fishes, Animals, Diethylnitrosamine, Female, Neoplasms, Experimental, Precancerous Conditions
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