Data/hora: 06/06/2024 02:35:41

Provedor de dados: | 52
País: | Brazil
Título: | Effect of the extract of Ricinus communis L. on the osmotic fragility, labeling of red blood cells with Technetium-99m and morphology of the cells
Autores: | Mousinho,Kristiana Cerqueira; Correia,Marília Bezerra Libório; Silva,Jailson Oliveira da; Magnata,Simey de Souza Leão Pereira; Souza,Ivone Antônia de; Catanho,Maria Teresa Jansem de Almeida.
Data: | 2008-12-01
Ano: | 2008
Palavras-chave: | Ricinus communis L.; Labeling of red blood cells; Osmotic fragility; Technetium-99m; Morphology of cells.
Resumo: | The aim of this study was to evaluate the influence of the proteic extract of R. communis on the cell physiology by the osmotic fragility, labeling of the blood elements with the 99mTc and cell morphology. To evaluate the osmotic fragility, the blood samples of the Wistar rats were incubated with the concentrations of R. communis and with the solutions of NaCl (0.4; 0.7; 0.9%). In the labeling of the blood elements procedure, the rat blood was treated with a solution of Tc-99m and TCA at 5%, determining the rate of radioactivity (%ATI) in the plasma (P) and in the red blood cells (RBC). The soluble and insoluble fractions of the plasma were also evaluated. The cells morphology submitted to the extract was evaluated by the optical microscopy (x40). The results indicated that the rate of the hemolysis increased in the presence of 0.125 mg/mL of the extract. There was a decay of 49.69% in the rate of ATI in the insoluble fraction of the cells, with the morphological alterations in the red blood cells. These results suggested that the extract changed the capability of binding of the red blood cells due to the stannous ion oxidation, modifying the cells structure.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132008000600008
Editor: | Instituto de Tecnologia do Paraná - Tecpar
Relação: | 10.1590/S1516-89132008000600008
Formato: | text/html
Fonte: | Brazilian Archives of Biology and Technology  v.51 n.6 2008
Fonte: | info:eu-repo/semantics/openAccess