10 research outputs found
Uma proposta para a produção da avaliação de Educação Física na educação infantil: uma experiência a partir da formação continuada
O objetivo do presente manuscrito é
apresentar uma proposta de produção da
avaliação semestral de Educação Física na
educação infantil, que possa subsidiar a
prática pedagógica dos professores atuantes
nessa etapa da educação básica, tendo como
referência as experiências desenvolvidas na
Rede Municipal de Ensino de Florianópolis.
As discussões englobam as problemáticas da
avaliação, aspectos da legislação educacional,
a importância dos registros; e indicam as
ações em torno de uma docência
compartilhada como modo de qualificar a
prática da avaliação no contexto da educação
infantil
Methotrexate diethyl ester-loaded lipid-core nanocapsules in aqueous solution increased antineoplastic effects in resistant breast cancer cell line
Breast cancer is the most frequent cancer affecting women. Methotrexate (MTX) is an antimetabolic drug that remains important in the treatment of breast cancer. Its efficacy is compromised by resistance in cancer cells that occurs through a variety of mechanisms. This study evaluated apoptotic cell death and cell cycle arrest induced by an MTX derivative (MTX diethyl ester [MTX(OEt)(2)]) and MTX(OEt)(2)-loaded lipid-core nanocapsules in two MTX-resistant breast adenocarcinoma cell lines, MCF-7 and MDA-MB-231. The formulations prepared presented adequate granulometric profile. The treatment responses were evaluated through flow cytometry. Relying on the mechanism of resistance, we observed different responses between cell lines. For MCF-7 cells, MTX(OEt)(2) solution and MTX(OEt)(2)-loaded lipid-core nanocapsules presented significantly higher apoptotic rates than untreated cells and cells incubated with unloaded lipid-core nanocapsules. For MDA-MB-231 cells, MTX(OEt)(2)-loaded lipid-core nanocapsules were significantly more efficient in inducing apoptosis than the solution of the free drug. S-phase cell cycle arrest was induced only by MTX(OEt)(2) solution. The drug nanoencapsulation improved apoptosis induction for the cell line that presents MTX resistance by lack of transport receptors