Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
1999-12-22
pubmed:abstractText
To investigate whether apoptosis contributes to neuronal degeneration in bovine spongiform encephalopathy (BSE), morphological changes consistent with apoptosis were sought and in-situ end labelling (ISEL) was applied, in a series of 20 BSE cases and 10 age-matched normal control cattle. Apoptotic changes were not found in neurons but were occasionally seen in glial cells. Relatively few ISEL-positive neurons were found, but many labelled nuclei were seen in glial cells in certain areas. None of the labelled cells showed morphological features of apoptosis. ISEL(+)cells occurred in areas of spongiform change and other areas of grey matter lacking spongiform change. Some association was found between degree of cellular DNA fragmentation and accumulation of abnormal prion protein (PrP(Sc)). Interestingly, small or moderate numbers of T lymphocytes, not present in the normal central nervous system (CNS), were detected in the CNS parenchyma in most BSE cases. There was a pronounced astrogliosis, but markers of macrophage or microglial activation were only slightly increased. The results indicate that nuclear DNA vulnerability is enhanced in certain neuroanatomical areas in BSE, but evidence that apoptosis plays a role in neuronal loss in BSE was very limited. 1999 Harcourt Publishers Ltd.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Nov
pubmed:issn
0021-9975
pubmed:author
pubmed:issnType
Print
pubmed:volume
121
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
357-67
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1999
pubmed:articleTitle
Nuclear DNA fragmentation and immune reactivity in bovine spongiform encephalopathy.
pubmed:affiliation
Institute of Animal Neurology, University of Berne, Bremgartenstrasse 109a, Switzerland.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't