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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
4 Pt 1
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pubmed:dateCreated |
1995-11-1
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pubmed:abstractText |
In a rat model of chronic Pseudomonas aeruginosa lung infection mimicking cystic fibrosis (CF) we studied whether the inflammatory response could be altered by vaccination. Rats were immunized with either a depolymerized alginate toxin A conjugate (D-ALG toxin A), purified alginate, an O-polysaccharide toxin A conjugate, or sterile saline. After challenge none of the rats immunized with D-ALG toxin A died, in contrast to the other two vaccine groups combined (p = 0.03). A significant reduction in the severity of the macroscopic lung inflammation was seen in rats immunized with D-ALG toxin A, compared with the other three groups (p = 0.009). The histopathologic response in the control rats was dominated by numerous polymorphonuclear leukocytes (PMN) surrounding the alginate beads. In contrast, the histopathologic response in rats immunized with D-ALG toxin A changed within the first week after challenge from predominantly PMNs (TH2-like) to a chronic-type inflammation dominated by mononuclear leukocytes (TH1-like). In accordance, the antibody titers induced by the D-ALG toxin A vaccine were not different from those of the control rats after challenge. This study identifies a possible new way of modifying the inflammation and thereby preventing the PMN-mediated lung tissue damage during chronic P. aeruginosa lung infection in CF.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
AIM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Oct
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pubmed:issn |
1073-449X
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pubmed:author | |
pubmed:issnType |
Print
|
pubmed:volume |
152
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
1337-46
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:7551392-Alginates,
pubmed-meshheading:7551392-Animals,
pubmed-meshheading:7551392-Antibodies, Bacterial,
pubmed-meshheading:7551392-Bacterial Vaccines,
pubmed-meshheading:7551392-Cystic Fibrosis,
pubmed-meshheading:7551392-Disease Models, Animal,
pubmed-meshheading:7551392-Enzyme-Linked Immunosorbent Assay,
pubmed-meshheading:7551392-Female,
pubmed-meshheading:7551392-Leukocytes, Mononuclear,
pubmed-meshheading:7551392-Lung,
pubmed-meshheading:7551392-Neutrophils,
pubmed-meshheading:7551392-Pneumonia, Bacterial,
pubmed-meshheading:7551392-Pseudomonas Infections,
pubmed-meshheading:7551392-Pseudomonas aeruginosa,
pubmed-meshheading:7551392-Rats,
pubmed-meshheading:7551392-Rats, Inbred Lew,
pubmed-meshheading:7551392-Vaccination
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pubmed:year |
1995
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pubmed:articleTitle |
Vaccination promotes TH1-like inflammation and survival in chronic Pseudomonas aeruginosa pneumonia in rats.
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pubmed:affiliation |
Department of Clinical Microbiology, University Institute of Forensic Medicine, Bartholin Institute, Copenhagen, Denmark.
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pubmed:publicationType |
Journal Article,
Comparative Study,
Research Support, Non-U.S. Gov't
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