Title
Techniques for the isolation and purification of Sarcocystis aucheniae oocysts from small intestine of experimentally infected dogs
Other title
[Técnicas de aislamiento y purificación de ooquistes de Sarcocystis aucheniae a partir de intestino delgado de perros experimentalmente infectados]
Date Issued
01 January 2013
Access level
metadata only access
Resource Type
journal article
Author(s)
Fiorella Zacarías S.
Rosa Sam T.
Juan Lucas L.
Publisher(s)
Universidad Nacional Mayor de San Marcos
Abstract
Procedures were evaluated for the rapid and efficient purification of oocysts and esporocysts of Sarcocystis aucheniae (Sa) from the small intestine of experimentally infected dogs with 400 Sa macrocysts obtained from meat of naturally infected alpacas. The mucosa of the small intestine was removed. Samples were washed by centrifugation with PBS, homogenized and centrifuged. Large quantities of oocysts attached to the intestinal microvilli were obtained. In the first procedure, an ezimatic treatment with 5% tripsin was used resulting in 50% oocyst separation. In the second procedure samples were treated with 2.6% sodium hypoclorite solution achieving 80% separation. In the third procedure, samples were centrifuged with a discontinuous density gradient of potassium bromide rendering 99% oocyst separation. The later procedure allowed obtaining relevant quantities of purified Sa oocysts and without loss of viability.
Start page
396
End page
403
Volume
24
Issue
3
Language
English
OCDE Knowledge area
Ciencia veterinaria
Subjects
Scopus EID
2-s2.0-84883579490
Source
Revista de Investigaciones Veterinarias del Peru
ISSN of the container
16823419
Sources of information:
Directorio de Producción Científica
Scopus