Acta Cirurgica Brasileira | |
Study of superoxide dismutase's expression in the colon produced by azoxymethane and inositol hexaphosfate's paper, in mice | |
Eva Glória Abrão Siufi Do Amaral2  Djalma José Fagundes1  Guido Marks2  Celso Massachi Inouye2  | |
[1] ,Federal University of Mato Grosso do Sul Department of Surgery ,Brazil | |
关键词: Colon; Superoxide Dismutase; Phytic Acid; Carcinogens; Azoxymethane; Rats; Colo; Superóxido Dismutase; Àcido Fítico; Carcinógeno; Azoximetano; Ratos; | |
DOI : 10.1590/S0102-86502006001000007 | |
来源: SciELO | |
【 摘 要 】
PURPOSE: To investigate the expression of superoxide dismutase (SOD), with use of antioxidant inositol hexaphosfate, in the presence of the carcinogen azoxymethane, in FCA of colon rats. METHODS: Wistar rats (n=48) were distributed in four groups of 12 mice. Divided in control (n=12); with azoxymethane administration AOM (n=12); administration of IP6 (n=12) and with administration of IP6/AOM (n=12). The subcutaneous administration of azoxymethane happened in the week 3 and 4 of the experiment, in dose 20mg/Kg, weekly; and administration of IP6 to 1% in water of drinking for 6 weeks in the group 3 and 4. The identification of the expression SOD-1 was accomplished through the quantification imunohistochemistry by the image processing attended by computer in crypts and focus of aberrant crypts in right colon. RESULTS: The group control presented expression of SOD1, on average 16,0%; group AOM, 26,7%; group IP6, 16,9%; group IP6/AOM, 20,9%. Variance analysis among the groups, was calculated 0,0078. CONCLUSION: The azoxymethane increase expression SOD1, while inositol hexaphosphate decreases in a significant way the expression of SOD1 promoted by the administration of the carcinogen azoxymethane.
【 授权许可】
CC BY
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