Summary
A total of 320 Chinese hamsters (Cricetulus griseus) (CH) were subcutaneously (s. c.) treated with 1/5, 1/10, or 1/20 LD50 of N-nitrosomorpholine (NM) or N-nitrosopiperidine (NP). In the CH, NM and NP both produced up to a 100% rate of papillomas of the cheek pouch, tongue, pharynx, esophagus and forestomach. Occasionally squamous cell carcinomas also developed in these organs. A high rate of hepatomas was realized by NP.
Zusammenfassung
320 Chinesische Zwerghamster (Cricetulus griseus) (CH) erhielten subcutan 1/5, 1/10 oder 1/20 der LD50 N-Nitrosomorpholin (NM) oder N-Nitrosopiperidin (NP). Beide Substanzen führten zu Papillomen in 3 Backentaschen, Zunge, Pharynx, Oesophagus und Vormagen. In einigen Fällen fanden sich darüber hinaus in den Organen auch Plattenepithelcarcinome. Weiterhin wurde nach Behandlung mit NP eine hohe Hepatomrate beobachtet.
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References
Haas, H., Mohr, U., Krüger, F.W.: Comparative studies with different doses of N-nitrosomorpholine, N-nitrosopiperidine, N-nitrosomethylurea and dimethylnitrosamine in Syrian golden hamsters. J. nat. Cancer Inst. 51, 1295 (1973)
Mohr, U., Reznik, G., Reznik-Schüller, H.: Carcinogenic effects of N-nitrosomorpholine and N-nitrosopiperidine on European hamsters (Cricetus cricetus L.). J. nat. Cancer Inst. 53, 231 (1974)
Reznik,G., Mohr,U., Kmoch,N.: Carcinogenic effects of different nitroso-compounds in Chinese hamsters. I. Dimethylnitrosamine and N-Diethylnitrosamine. (In prep.)
Weil, C.S.: Tables for convenient calculations of effective dose(LD50 or ED50) and instructions in their use. Biometrics 8, 249 (1952)
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Reznik, G., Mohr, U. & Kmoch, N. Carcinogenic effects of different nitroso-compounds in chinese hamsters II. N-nitrosomorpholine and N-nitrosopiperidine. Z. Krebsforsch. 86, 95–102 (1976). https://doi.org/10.1007/BF00304939
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DOI: https://doi.org/10.1007/BF00304939