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| Cortez,Alane Pereira; Menezes,Elizabeth Gomes Paulino; Benfica,Polyana Lopes; Santos,Alexandre Pereira dos; Cleres,Larissa Moreira; Ribeiro,Higor de Oliveira; Lima,Eliana Martins; Kato,Massuo Jorge; Valadares,Marize Campos. |
| Abstract In this study, the potential antileukemic activity of grandisin, a lignan extracted from Piper solmsianum, was evaluated against the leukemic line K562. The cytotoxicity of grandisin (0.018 to 2.365 µM) was evaluated in K562 and normal peripheral blood lymphocytes by Trypan Blue Exclusion and MTT methods after 48h exposure to the drug. In both methods, cellular viability was concentration-dependent and the IC50 values were lower than 0.85µM. Analysis of K562 cells after treatment with grandisin showed that the cell cycle was arrested in the G1 phase with a 12.31% increase, while both S and G2 phases decreased. Morphological studies conducted after the exposure of K562 to grandisin revealed changes consistent with the apoptosis process, which was... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Grandisin/antileukemic activities; Leukemic; K562; Apoptosis.. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502017000100610 |
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| Valadares,Marize Campos; Pereira,Enir Raquel Tavares; Benfica,Polyana Lopes; Paula,José Realino. |
| In the present study, the ability of Punica granatum ethanolic leaf extract (PGL) and Punica granatum ethanolic fruit extract (PGF) to induce mutagenicity or to modulate the genotoxic effects induced by the alkylating agent cyclophosphamide (CP) was evaluated. Swiss male mice were treated by gavage for 10 days with PGL or PGF (12.5, 25, 50, and 75 mg/kg/day) prior to exposure to CP (i.p. 200 mg/kg), 24 h after the end of the treatment. Initial observations revealed that normal mice treated with both extracts (12.5, 25, 50, and 75 mg/kg/day) showed a similar micronucleated polychromatic erythrocyte (MNPCE) frequency to that of the control group. Investigation of the protective effect of PGL and PGF based on data analysis revealed that, irrespective of dose... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Punica granatum/mutagenic effects; Micronucleic; Genotoxicity; Cyclophosphamide. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502010000100014 |
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