SABER UCV >
1) Investigación >
Artículos Publicados >

Por favor, use este identificador para citar o enlazar este ítem: http://hdl.handle.net/123456789/5758

Título : Excretion Product of Shigella dysenteriae (SdyEP) Induced Cell Death in Early Larval Stage of Zebrafish (Danio rerio): Acridine Orange and Ethidium Bromide (AO/EB) in vivo Staining
Otros títulos : El Producto de Excreción de la Shigella dysenteriae (PESdy) Induce Muerte Celular en Larvas de Pez Cebra (Danio rerio): Marcaje in vivo con Naranja de Acridina y Bromuro de Etidio (NA/BE)
Autor : Alvarez, Marco
Urbina, Gidalia
Perdomo, Lourdes
Palabras clave : Zebrafish (Danio rerio); Shigella dysenteriae; Apoptosis; Acridine Orange; Ethidium Bromide.
Fecha de publicación : 15-Mar-2014
Citación : Int.J.Morphol;31(4):1175-1180, 2013.
Resumen : In the field of studies of acute toxicity induced by bacterial agents, Shiga toxins have been relevant due to the severity of the extra-intestinal diseases they cause. Numerous studies have shown that Shiga toxin induced apoptosis in different cell types; however, this important process has been little studied in vivo experimental models. In this study, the effects of excretion products of Shigella dysenteriae, in which Shiga toxin is present, we investigated on early larval stages of Zebrafish, an animal model with many advantages over other in vivo experimental models traditionally used. Both the collection of eggs and larvae of Zebrafish, and the product from excretion from Shigella dysenteriae (SdyEP) were performed according to laboratory standards. Also, toxicity bioassay, larvae treatment with pure and diluted solution, 10-1, 10-2, 10-3 , 10-4 and 10-5 v/v SdyEP and cell death in vivo using Acridine Orange (AO) and Ethidium Bromide (EB) were applied. The excretion product of Shigella dysenteriae (SdyEP) effect was expressed in terms of larval mortality and dependent dilution rather than incubation time. The larval population surviving treatment with Shigella excretion product presents severe morphological effects. The larval population generally presents notable severe morphological damage, the necrosis state is represented by the opacity of the larvae after being treated for 24 h (b) compared to control. Other changes associated with larval anatomy were also observed; particularly the caudal end curvature was significant into 10%. The use of AO/EB revealed a distribution pattern from fluorescence into green and orange in surviving larvae SdyEP poisoning, there was a large population of dead cells around the anal and caudal region as evidenced by the presence of orange nuclei in greater numbers as controls in the larvae. The results support the application of coloring AO/EB in Zebrafish experimental models for the evaluation of the toxic action of new molecules and new products with therapeutic potential.
URI : http://saber.ucv.ve/jspui/handle/123456789/5758
ISSN : 0717-9502
Aparece en las colecciones: Artículos Publicados

Ficheros en este ítem:

Fichero Descripción Tamaño Formato
Shiga-Toxi-20134.pdf657.52 kBAdobe PDFVisualizar/Abrir
Shiga-Toxi-20134.pdf657.52 kBAdobe PDFVisualizar/Abrir

Los ítems de DSpace están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.

 

Valid XHTML 1.0! DSpace Software Copyright © 2002-2008 MIT and Hewlett-Packard - Comentarios