Linked Life Data

10718117

Source:http://linkedlifedata.com/resource/pubmed/id/10718117

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
2000-4-13
pubmed:abstractText
Products released by polymorphonuclear cells (PMNs) during an acute inflammatory response can result in diffuse tissue injury. Integrins are cell surface adhesion proteins that play a pivotal role in inflammation by allowing PMNs to adhere to the endothelium and migrate through the extracellular matrix. We examined the expression of beta1 and beta2 integrins on neutrophils from blood and cerebrospinal fluid (CSF) in an animal model of Group B Streptococcal meningitis. We further evaluated whether integrin expression correlates with pathophysiologic markers of central nervous system inflammation. Our data demonstrate that beta3 and beta2 integrin expression on circulating neutrophils does not significantly increase as a consequence of meningitis. In extravesated CSF neutrophils, a significant increase in expression of both beta1 and beta2 integrins is noted. Furthermore, a majority of the beta1 integrins on extravesated neutrophils have undergone affinity modulation. Using regression analysis, we demonstrated that increasing beta1 integrin expression correlates with decreasing CSF glucose concentration and serum/CSF glucose ratio. Regression analysis approached significance when CSF protein was compared to PMN beta1 integrin expression. Polymorphonuclear leukocytes beta1 integrin expression also showed a direct correlation to myeloperoxidase activity in brain tissue. Beta2 expression on CSF PMNs did not correlate with these markers of inflammation/sequestration. These data demonstrate integrin expression on extravesated neutrophils markedly increases during meningitis and support a role for beta1 integrins on neutrophils in the pathophysiologic consequences of meningitis.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Apr
pubmed:issn
0360-3997
pubmed:author
pubmed:issnType
Print
pubmed:volume
24
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
157-73
pubmed:dateRevised
2007-11-15
pubmed:meshHeading
pubmed:year
2000
pubmed:articleTitle
Integrin expression on neutrophils in a rabbit model of Group B Streptococcal meningitis.
pubmed:affiliation
Division of Pediatric Critical Care Medicine, Children's Hospital Medical Center, Cincintnati, Ohio 45229-3039, USA.
pubmed:publicationType
Journal Article, Comparative Study, Research Support, Non-U.S. Gov't