NDLI: PrPSc deposition in nervous tissues without lymphoid tissue involvement is frequently found in ARQ/ARQ Sarda breed sheep preclinically affected with natural scrapie

Content Provider	Springer Nature Link
Author	Ligios, C. Cancedda, M. G. Madau, L. Santucciu, C. Maestrale, C. Agrimi, U. Ru, G. Di Guardo, G.
Copyright Year	2006
Abstract	The pathogenesis of natural scrapie in Sarda breed sheep was investigated in 1050 asymptomatic and 49 sick sheep from scrapie-affected flocks. Central and peripheral nervous system, along with lymphoreticular system (LRS) tissues, were subjected to immunohistochemistry (IHC) and Western-blotting (WB) for detection of pathological isoform of the prion protein (PrPSc). A total of 69 of the 1050 clinically healthy sheep were found to be infected with scrapie, with PrPSc being detected in both the central nervous system (CNS) and enteric nervous system (ENS) plexuses of 60 of the sheep, while IHC and WB yielded evidence of (PrPSc) deposition only in lymphoid tissues of the remaining 9 clinically healthy sheep. PrPSc was also detected in the CNS, as well as in ENS plexuses from all of the 49 clinically affected sheep. Nevertheless, 18 of the 69 clinically healthy animals (26%, 17 ARQ/ARQ and 1 ARQ/AHQ sheep), along with 3 ARQ/ARQ sheep (6%) of the clinically affected group, showed no IHC or WB evidence of PrPSc in lymphoid tissues, but PrPSc could be still detected in their CNS and ENS plexuses. The study demonstrates dual CNS and ENS PrPSc deposition in Sarda sheep with scrapie, in spite of an apparent lack of lymphoid tissue involvement in a number of cases.
Starting Page	2007
Ending Page	2020
Page Count	14
File Format	PDF
ISSN	03048608
Journal	Archives of Virology
Volume Number	151
Issue Number	10
e-ISSN	14328798
Language	English
Publisher	Springer-Verlag
Publisher Date	2006-04-20
Publisher Place	Vienna
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Medical Microbiology Virology Infectious Diseases
Content Type	Text
Resource Type	Article
Subject	Virology Medicine

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PrPSc deposition in nervous tissues without lymphoid tissue involvement is frequently found in ARQ/ARQ Sarda breed sheep preclinically affected with natural scrapie

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