Prions are secreted in milk from clinically normal scrapie-exposed sheep.
J Virol
; 83(16): 8293-6, 2009 Aug.
Article
de En
| MEDLINE
| ID: mdl-19494004
ABSTRACT
The potential spread of prion infectivity in secreta is a crucial concern for prion disease transmission. Here, serial protein misfolding cyclic amplification (sPMCA) allowed the detection of prions in milk from clinically affected animals as well as scrapie-exposed sheep at least 20 months before clinical onset of disease, irrespective of the immunohistochemical detection of protease-resistant PrP(Sc) within lymphoreticular and central nervous system tissues. These data indicate the secretion of prions within milk during the early stages of disease progression and a role for milk in prion transmission. Furthermore, the application of sPMCA to milk samples offers a noninvasive methodology to detect scrapie during preclinical/subclinical disease.
Texte intégral:
1
Collection:
01-internacional
Base de données:
MEDLINE
Sujet principal:
Tremblante
/
Protéines PrPSc
/
Lait
Limites:
Animals
Langue:
En
Journal:
J Virol
Année:
2009
Type de document:
Article
Pays d'affiliation:
Royaume-Uni