INDUCTION OF ANGIOGENIC TUMORS IN THE DUODENUM OF FEMALE DONRYU RATS BY CONTINUOUS ORAL ADMINISTRATION OF N-ISOBUTYL-N-NITROSOUREA

Four groups of female Donryu rats were continuously given 400, 200, 100 or 0ppm N-isobutyl-N-nitrosourea (iso-BNU) in their drinking water, and were examined for the development of tumors. The incidence of digestive tract tumors was 25/28 (89%), 14/24 (58%), 6/25 (24%) and 0/17 (0%), in the 400, 200...

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Veröffentlicht in:GANN Japanese Journal of Cancer Research 1983, Vol.74(3), pp.342-350
Hauptverfasser: OGIU, Toshiaki, MATSUOKA, Chiaki, FURUTA, Kyoko, TAKEUCHI, Masaki, MAEKAWA, Akihiko, NAKADATE, Masahiro, ODASHIMA, Shigeyoshi
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container_title GANN Japanese Journal of Cancer Research
container_volume 74
creator OGIU, Toshiaki
MATSUOKA, Chiaki
FURUTA, Kyoko
TAKEUCHI, Masaki
MAEKAWA, Akihiko
NAKADATE, Masahiro
ODASHIMA, Shigeyoshi
description Four groups of female Donryu rats were continuously given 400, 200, 100 or 0ppm N-isobutyl-N-nitrosourea (iso-BNU) in their drinking water, and were examined for the development of tumors. The incidence of digestive tract tumors was 25/28 (89%), 14/24 (58%), 6/25 (24%) and 0/17 (0%), in the 400, 200, 100 and 0ppm groups, respectively. The predominant type of digestive tract tumor wasangiogenic, and a few were of the epithelial type. A dose-effect relationship was clearly demonstrated not only in the incidence of digestive tract tumors but also in the average survival period of rats with these tumors.
doi_str_mv 10.20772/cancersci1959.74.3_342
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source MEDLINE; J-STAGE (Japan Science & Technology Information Aggregator, Electronic) Freely Available Titles - Japanese; EZB-FREE-00999 freely available EZB journals
subjects Administration, Oral
Angiogenic tumor
Animals
Biological and medical sciences
Carcinogenesis, carcinogens and anticarcinogens
Carcinogens
Chemical agents
Chemical carcinogenesis
Donryu rat
Dose-Response Relationship, Drug
Duodenal Neoplasms - chemically induced
Duodenal Neoplasms - pathology
Duodenal tumor
Female
Hemangioendothelioma - chemically induced
Mammary Neoplasms, Experimental - chemically induced
Medical sciences
N-Isobutyl-N-nitrosourea
Neoplasms, Experimental - chemically induced
Neoplasms, Vascular Tissue - chemically induced
Nitrosourea Compounds - toxicity
Rats
Rats, Inbred Strains
Structure-Activity Relationship
Tumors
title INDUCTION OF ANGIOGENIC TUMORS IN THE DUODENUM OF FEMALE DONRYU RATS BY CONTINUOUS ORAL ADMINISTRATION OF N-ISOBUTYL-N-NITROSOUREA
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