Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
1995-9-15
pubmed:abstractText
An ex vivo whole blood model of meningococcal bacteraemia was developed to examine the total bactericidal activity of blood. Using a single defined donor and strains belonging to serogroups A, B and C and an unencapsulated strain, we demonstrated that the bactericidal mechanisms operating in whole blood varied with anticoagulant, serogroup and bacterial growth conditions. The choice of anticoagulant had a major effect on the survival of the serogroup A strain with 94% (SEM 7.6) survival in citrated blood compared to 19.7% (SEM 19.6) survival in heparinised blood after 60 min incubation. The serogroup C strain showed enhanced survival when grown in liquid medium compared to growth on solid medium (73.5%, SEM 7.5, and 8.2%, SEM 3.1, respectively, in citrated blood after 60 min). The pattern of survival of serogroup B and the unencapsulated strain were largely unaffected by these variables. Comparison with cell free conditions allowed the contribution of cellular components in meningococcal killing to be determined. Secreted levels of tumour necrosis factor and neutrophil elastase secreted during whole blood assays did not correlate with bacterial growth or viability indicating a lack of relationship between killing and activation of phagocytes.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Feb
pubmed:issn
0882-4010
pubmed:author
pubmed:issnType
Print
pubmed:volume
18
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
97-107
pubmed:dateRevised
2009-9-29
pubmed:meshHeading
pubmed:year
1995
pubmed:articleTitle
Whole blood model of meningococcal bacteraemia--a method for exploring host-bacterial interactions.
pubmed:affiliation
Department of Medical Microbiology, St. Mary's Hospital Medical School, Paddington, London, U.K.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't