Induction of experimental mammary carcinogenesis in rats with 7,12-dimethylbenz(a)anthracene
Keywords:
Breast neoplasms, chemically induced 9,10-Dimethyl-1,2- benzanthracene, administration & dosage, Models animal, RatosAbstract
Objective: To test an experimental model of chemical mammary carcinogenesis induction in Sprague- Dawley rats. Methods: Thirty virgin Sprague-Dawley female rats, aged 50 days, received 20 mg of 7,12-dimethylbenz(a)anthracene (DMBA) intragastrically by gavage. At 12 week their mammary glands were examined. Brain, liver, bone and lung tissue were also analyzed. Results: Twelve weeks after DMBA injection, 85% rats presented at least one breast tumor. Conclusin: This experimental animal model of chemical mammary induced carcinogenesis is feasible and can be used in further experiments on the role of tumorigenic biomodulator substances.
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Copyright (c) 2022 Laura Ferreira de Rezende, Eunice Cristina da Silva Costa, Natália Guimarães de Moraes Schenka, André de Almeida Schenka, Lindsay Pâmela Untura, Gilberto Uemura

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