Linked Life Data

9291232

Source:http://linkedlifedata.com/resource/pubmed/id/9291232

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
1997-10-23
pubmed:abstractText
Within the last decade there has arisen increasing appreciation of the role of glia-derived immune and neurotrophic cytokines, especially microglia-derived interleukin-1 and astrocyte-derived S100beta, in the pathophysiology of Alzheimer's disease and of neurodegeneration in general. Available evidence now suggests that these neurotrophic and immune cytokines, produced in response to neuronal cell dysfunction or death, may elicit cellular and molecular responses resulting in further activation of glia and glial cytokine secretion, producing a cytokine cycle. In conditions characterized by chronic glial activation this cycle becomes self propagating, promoting further neurodegeneration and subsequent further induction of glial cell activation with production of cytokines. In Alzheimer's disease, for instance, such self-propagation is essential to the progressive accumulation of neuropathological changes that underlie progressive dementia. Conditions that predispose one to Alzheimer-type 'senile' neuropathological changes, and to later development of Alzheimer's disease, also exhibit glial activation and overexpression of glial cytokines, providing further evidence of a pathogenic role for glial activation and cytokine cycle elements in the initiation and propagation of Alzheimer lesions. HIV produces a chronic viral infection of the central nervous system that has been associated with chronic glial activation and overexpression of some of the same cytokines that have been implicated in Alzheimer pathogenesis. These observations, together with established functions of cytokine cycle elements, suggest that chronic HIV infection in sufficiently long-lived HIV-infected individuals might confer additional risk for later development of Alzheimer's disease.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Aug
pubmed:issn
1355-0284
pubmed:author
pubmed:issnType
Print
pubmed:volume
3
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
241-6
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:year
1997
pubmed:articleTitle
The role of chronic self-propagating glial responses in neurodegeneration: implications for long-lived survivors of human immunodeficiency virus.
pubmed:affiliation
Department of Veterans' Affairs Medical Center and Department of Pathology, University of Arkansas for Medical Sciences, Little Rock 72205, USA.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S., Review