Linked Life Data

1679911

Source:http://linkedlifedata.com/resource/pubmed/id/1679911

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
9
pubmed:dateCreated
1991-10-11
pubmed:abstractText
Multiple lines of evidence indicate that PrPSc, found only in scrapie, is a necessary component of the infectious scrapie agent. Equally compelling is the evidence that its accumulation in the brain causes the neuropathology characteristic of scrapie. We measured the regional concentration of PrPSc in nine brain regions throughout the course of scrapie in the Syrian hamster following intrathalamic inoculation of prions. PrPSc was compared to the regional concentration of glial fibrillary acidic protein, a measure of reactive astrocytic gliosis. PrPSc was detected first in the thalamus 14 to 21 days postinoculation and next in the septum at 28 days. Initiation of PrPSc synthesis and accumulation in the thalamus was attributable to the inoculum and in the septum to ventricular spread of de novo synthesized PrPSc. The timing and pattern of PrPSc accumulation in all other brain regions suggested transmission along neuroanatomic pathways. Reactive astrocytic gliosis followed PrPSc accumulation in each region by 1 to 2 weeks. Brain PrPSc, determined by summing the concentrations in each brain region, correlated well with scrapie infectivity titers throughout the course of infection (correlation coefficient = 0.975; slope of linear regression line = 1.136). Our results support the hypothesis that PrPSc participates in both the etiology and pathogenesis of prion diseases.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
AIM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Sep
pubmed:issn
0028-3878
pubmed:author
pubmed:issnType
Print
pubmed:volume
41
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1482-90
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:year
1991
pubmed:articleTitle
Proteinase-resistant prion protein accumulation in Syrian hamster brain correlates with regional pathology and scrapie infectivity.
pubmed:affiliation
Department of Pathology, University of California, San Francisco 94143.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S., Research Support, Non-U.S. Gov't