Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
6
pubmed:dateCreated
1989-6-5
pubmed:abstractText
Neuraminidase and pneumolysin were purified from cultures of Streptococcus pneumoniae and used, either singly or in combination, to immunize juvenile mice which were subsequently challenged intranasally with virulent S. pneumoniae. In each of two independent trials, a small but significant (P less than 0.05) increase in survival time (compared with that of non-immunized mice) was observed in groups which had been immunized with neuraminidase, but only if the enzyme had been pre-treated with 3.4% (v/v) formaldehyde. The median extension in survival time was significantly less (P less than 0.01) than that of mice which had been immunized with pneumolysin alone. The median survival time for mice which had received both formaldehyde-treated neuraminidase and pneumolysin was not significantly different from that of mice which had received pneumolysin alone. While these findings provide direct evidence that neuraminidase contributes to the pathogenicity of the pneumococcus in mice, they suggest that this protein may be of less value than pneumolysin as a vaccine component in the present experimental model.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Dec
pubmed:issn
0882-4010
pubmed:author
pubmed:issnType
Print
pubmed:volume
5
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
461-7
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1988
pubmed:articleTitle
Comparative efficacy of pneumococcal neuraminidase and pneumolysin as immunogens protective against Streptococcus pneumoniae.
pubmed:affiliation
Department of Microbiology, Adelaide Children's Hospital, South Australia.
pubmed:publicationType
Journal Article, Comparative Study, Research Support, Non-U.S. Gov't