Excretion of BSE and scrapie prions in stools from murine models
Faeces from infected animals have been suggested as a potential source of contamination and transmission of prion diseases in the environment. This work describes the development of a procedure for the detection of PrPres in stools which is based on a detergent-based extraction and immunoprecipitation (IP). The procedure was evaluated by analyzing TSE-spiked sheep and mice faeces, and proved to be specific for PrPres with sensitivities of 5-10 μg of infected brain tissue. In order to analyze the shedding of prions, we studied stools from orally inoculated mice over 4-days post-inoculation and also stools from terminally sick scrapie-infected mice. PrPres was only detected in stools shortly after the oral ingestion of TSE agents. The procedure described could be a useful tool for studying the excretion of prions and for evaluating potential environmental contamination by prions. © 2008 Elsevier B.V. All rights reserved.
| Main Authors: | , , , , , , |
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| Format: | artículo biblioteca |
| Language: | English |
| Published: |
Elsevier
2008
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| Subjects: | Prion, Scrapie, BSE, Detection, Stool, |
| Online Access: | http://hdl.handle.net/20.500.12792/2592 http://hdl.handle.net/10261/292077 |
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