Study of the antineoplastic action of Tabebuia avellanedae in carcinogenesis induced by azoxymethane in mice

  • Higa R
  • Aydos R
  • Silva I
  • et al.
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Abstract

PURPOSE: To study the antitumor action of Tabebuia avellanedae in experimentally induced colon carcinogenesis by azoxymethane in mice. METHODS: Fifty (n=50) mice were divided into five groups: in group I azoxymethane (AOM) was administered, in Group II - β-lapachone, in group III - vehicle (diluent) and in group IV - vehicle + AOM and finally in group V - β-lapachone + AOM. RESULTS: It was observed the presence of aberrant crypt foci in all animals of groups I and IV, 50% in group II and 90% in group V. CONCLUSION: The β-lapachone extracted from the Tabebuia avellanedae showed no protective effect of lesions induced by azoxymethane in colon of mice.OBJETIVO: Estudar a ação antitumoral da Tabebuia avellanedae (Ipê-Roxo) na carcinogênese colônica induzida experimentalmente pelo azoximetano em camundongos. MÉTODOS: Foram utilizados 50 camundongos divididos em 5 grupos: grupo I administrado Azoximetano (AOM); grupo II - β-lapachona; grupo III - veículo (diluente); grupo IV - veículo + AOM; e grupo V - β-lapachona + AOM. RESULTADOS: Observou-se presença de focos de criptas aberrantes em todos os animais dos grupos I e IV, 50% no grupo II e 90% no grupo V. CONCLUSÃO: A β-lapachona extraída da Tabebuia avellanedae não apresentou efeito protetor das lesões induzidas pelo azoximetano em cólon de camundongos.

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APA

Higa, R. A., Aydos, R. D., Silva, I. S., Ramalho, R. T., & Souza, A. S. de. (2011). Study of the antineoplastic action of Tabebuia avellanedae in carcinogenesis induced by azoxymethane in mice. Acta Cirurgica Brasileira, 26(2), 125–128. https://doi.org/10.1590/s0102-86502011000200009

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