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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
6
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pubmed:dateCreated |
1999-2-11
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pubmed:abstractText |
Levels of the pro-inflammatory cytokines TNF-alpha and IFN-gamma were measured from the time of infection to the time of complete clearance of non-typeable Haemophilus influenzae (NTHi) from the lung in immune and non-immune rats. Mucosal immunization facilitated production of significant levels of TNF-alpha as early as 30 min post-pulmonary challenge with NTHi in immune animals. Following the peak at 2 h, rapid decline of TNF-alpha levels occurred from the alveolar spaces. Levels of TNF-alpha in non-immunized animals increased at a slower rate, peaked at a lower concentration and were slower to decline. The significantly larger number of macrophages seen in the immune animals at 1 h after bacterial challenge could partially account for the higher levels of TNF-alpha. Interferon-gamma was not detected in immune or non-immune rats at any time point before NTHi clearance after pulmonary challenge. Study of the kinetics of TNF-alpha release demonstrates that immunized animals control the release of pro-inflammatory cytokines more effectively than non-immunized animals for enhanced clearance of bacterial infection from the lungs.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Dec
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pubmed:issn |
0818-9641
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
76
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
556-9
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pubmed:dateRevised |
2008-11-21
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pubmed:meshHeading |
pubmed-meshheading:9893034-Animals,
pubmed-meshheading:9893034-Bronchoalveolar Lavage Fluid,
pubmed-meshheading:9893034-Haemophilus Infections,
pubmed-meshheading:9893034-Haemophilus influenzae,
pubmed-meshheading:9893034-Humans,
pubmed-meshheading:9893034-Immunity, Mucosal,
pubmed-meshheading:9893034-Interferon-gamma,
pubmed-meshheading:9893034-Lung,
pubmed-meshheading:9893034-Male,
pubmed-meshheading:9893034-Rats,
pubmed-meshheading:9893034-Rats, Wistar,
pubmed-meshheading:9893034-Time Factors,
pubmed-meshheading:9893034-Tumor Necrosis Factor-alpha,
pubmed-meshheading:9893034-Vaccination
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pubmed:year |
1998
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pubmed:articleTitle |
Kinetics of inflammatory cytokines in the clearance of non-typeable Haemophilus influenzae from the lung.
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pubmed:affiliation |
Research Centre for Human and Biomedical Sciences, Faculty of Applied Science, University of Canberra, Australian Capital Territory, Australia.
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pubmed:publicationType |
Journal Article,
Comparative Study,
Research Support, Non-U.S. Gov't
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