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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
4
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pubmed:dateCreated |
1987-12-4
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pubmed:abstractText |
Endotoxin liberation was studied in a blinded material of 121 Neisseria meningitidis isolates; from nasopharynx of 58 carriers and from cerebrospinal fluid or blood of 63 cases with meningococcal disease. Endotoxin activity in culture filtrates was determined by a Limulus lysate test. Meningococci isolated from clinical cases were significantly more frequently endotoxin-liberating (E+) (84.1%) than in carriers (25.9%); p less than 0.001. Serogroupable carrier isolates had a significantly higher frequency of E+ meningococci (61.9%) than non-groupable ones (5.4%); p less than 0.002. Serogroup B case isolates, which generally had a larger amount of capsular polysaccharide than B meningococci from carriers, had a significantly higher proportion of E+ meningococci than group B from carriers; p = 0.007. All 7 serogroup C isolates were E+ (5 cases and 2 carriers). No correlation was found between endotoxin liberation and the serotype: subtype 15:P1.16, tested by a selection of monoclonal antibodies, or between endotoxin liberation and sulfonamide resistance, when carrier and case isolates were studied separately. Meningococci isolated from cases had the following mean endotoxin titres: 320.5 in the meningitis group, 408.2 in the septicaemic group, 462.1 in the septicaemic and meningitis group, and 123.7 in the group with other systemic disease. E+ meningococci were isolated from 5/6 fatal cases. Thus, endotoxin liberation from meningococci is strongly, but not completely associated with establishment of meningococcal disease and with the presence of capsular polysaccharide.
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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:issn |
0036-5548
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
19
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
409-19
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:3118451-Carrier State,
pubmed-meshheading:3118451-Cerebrospinal Fluid,
pubmed-meshheading:3118451-Endotoxins,
pubmed-meshheading:3118451-Humans,
pubmed-meshheading:3118451-Meningitis, Meningococcal,
pubmed-meshheading:3118451-Meningococcal Infections,
pubmed-meshheading:3118451-Nasopharynx,
pubmed-meshheading:3118451-Neisseria meningitidis,
pubmed-meshheading:3118451-Sepsis,
pubmed-meshheading:3118451-Serotyping,
pubmed-meshheading:3118451-Sulfonamides
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pubmed:year |
1987
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pubmed:articleTitle |
Endotoxin liberation from Neisseria meningitidis isolated from carriers and clinical cases.
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pubmed:affiliation |
Department of Bacteriology, National Institute of Public Health, Oslo, Norway.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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