Linked Life Data

9160296

Source:http://linkedlifedata.com/resource/pubmed/id/9160296

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
5
pubmed:dateCreated
1997-7-18
pubmed:abstractText
Tissue factor (TF), a small membrane bound high affinity receptor for factor VII, has an important procoagulant role in the haemostatic dysfunction associated with severe sepsis. Using an in vitro model of human endothelial TF expression, defined strains of Neisseria meningitidis were found to upregulate endothelial cell procoagulant activity (PCA) in a dose dependent manner. This TF response was detected with as little as 10(4) cfu/ml and reached similar levels to those seen with high concentrations of purified endotoxin (> 1 ng/ml). Treatment of N. meningitidis with either adult donor immune serum, penicillin or gentamicin failed to enhance this PCA. Limulus amoebocyte lysate assay of lipopolysaccharide in bacterial culture filtrates together with polymyxin B inhibition experiments suggest that endotoxin is largely responsible for endothelial TF induction by N. meningitidis. Incubation of endothelial cells with N. meningitidis B1940 and B1940 siaD- (an eight-fold more adherent unencapsulated isogenic strain), revealed a significantly greater TF response to B1940 siaD- (P < 0.01). In conclusion, bacterial adhesion to the vessel wall and therefore local levels of endotoxin may be important determinants of the endothelial procoagulant response to N. meningitidis and the consequent coagulopathy commonly associated with the disease.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
May
pubmed:issn
0882-4010
pubmed:author
pubmed:issnType
Print
pubmed:volume
22
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
265-74
pubmed:dateRevised
2009-9-29
pubmed:meshHeading
pubmed:year
1997
pubmed:articleTitle
Induction of human endothelial tissue factor expression by Neisseria meningitidis: the influence of bacterial killing and adherence to the endothelium.
pubmed:affiliation
Paediatric Infectious Diseases Unit, Imperial College School of Medicine at St Mary's, London, U.K.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't