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Recently, Morinda citrifolia Linn., popularly known in Brazil as noni, is used in folk medicine for its therapeutic properties to prevent and cure various diseases, among them cancer. The fruit has in its composition compounds with biological activities and, consequently, have chemopreventive effects. In this context, the objective of the study was to evaluate the antimutagenic/mutagenic potential of aqueous extract of the noni through the Micronucleus Test in vivo and to investigate the possible toxic effect of noni through the in vitro Cytotoxicity Test. The animals (6 animals/group) were treated for 15 consecutive days with aqueous extract (via gavage) and on day 15th were given intraperitoneally cyclophosphamide (CPA, 25 mg/Kg) and sacrificed 24 hours after treatment for evaluate of erythrocyte frequency micronucleated polychromatic (MNPCE). The chinese hamster ovary (CHO) cells were incubated with aqueous extract of noni at the concentrations of 50, 200, 1000, 2500 and 5000 μg/ml for 3 hours and Ehrlich ascitic tumor cells (TAE) using concentrations of 1.0; 0.5 and 0.25 mg/ml of the noni extract, incubated for 24 hours. After treatment, the cell viability test was performed with tripan blue, in triplicate. The results showed that pretreatment with aqueous extract of noni, under the conditions tested, significantly reduced the frequency of MNPCE (p |
