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- 저자 : Cibele M.C.P. Gouvea (검색결과 1 건)
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In Vivo Antimutagenic Properties of Transgenic and Conventional Soybeans
Luciana Azevedo,Nathalia R.V. Dragano,Ana P.L. Sabino,Maria Christina C. Resck,Patricia L. Alves de Lima,Cibele M.C.P. Gouvea 한국식품영양과학회 2010 Journal of medicinal food Vol.13 No.6
The goal of the this study was to evaluate the mutagenic/antimutagenic effects of conventional (BRS133) and transgenic (BRS 245 RR) soybeans (CS and TS, respectively) in vivo using the bone marrow micronucleus (MN) test, histopathological analysis, chromosome aberration test (CAT), and mitotic index (MI) determination. Six-week-old male Swiss mice were fed with pelleted commercial diet mixed with CS or TS at 10% or 20%. Two experimental designs (MN and CAT) were conducted simultaneously with 10 groups each during a 15-day period. Animals were treated with pelleted commercial diet, CS (10% or 20%), or TS (10% or 20%), and on day 14 they also received cyclophosphamide (CP) (50mg/kg i.p.). The 10% and 20% CS and TS diets did not significantly decrease the frequencies of micronucleated polychromatic erythrocytes in bone marrow induced by CP. However, the CAT indicated that the 10% and 20% CS diets significantly (P<.05) protected nucleated bone marrow cells against chemical-induced mutagenesis and also produced a significant (P<.05) decrease in the total percentage of spontaneous aberrations. Among the treatments with TS, only the 10% TS diet reduced the percentage of total aberrations induced by CP. The results also indicated that the treatment with 20% TS alone significantly (P<.05) decreased the MI, indicating cytotoxic effects related to the treatment. Taken together, our results suggest that, under the tested conditions, TS and CS have antimutagenic properties and are not toxic.
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