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J Vet Diagn Invest ; 20(1): 58-60, 2008 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-18182509

RESUMO

Chronic wasting disease (CWD) in Wisconsin was first identified in February 2002. By April 2005, medial retropharyngeal lymph node (RLN) tissues had been examined from over 75,000 white-tailed deer for the presence of CWD by either immunohistochemical (IHC) staining for the prion protein associated with CWD (PrP(res)) or by using enzyme-linked immunosorbent assays with confirmation of positives by IHC staining and had been detected in 469 animals. Obex tissue was also available from 438 of the CWD-positive animals and was CWD positive by IHC staining in 355 (81%). To verify whether false-negative results were possible examining only RLN, both obex and RLN samples were examined for CWD by IHC staining from 4,430 of the white-tailed deer harvested from an area in Wisconsin where the overall deer CWD prevalence was approximately 6.2%. Two hundred and fourteen of the 269 positive deer (79.6%) had deposits of PrP(res) in both obex and lymphoid tissues, 55 (20.4%) had deposits only in lymphoid tissue, and there were no deer that had deposits only in obex.


Assuntos
Tronco Encefálico/patologia , Cervos , Linfonodos/patologia , Doença de Emaciação Crônica/patologia , Animais , Ensaio de Imunoadsorção Enzimática/veterinária , Imuno-Histoquímica/veterinária , Doença de Emaciação Crônica/diagnóstico
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