Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
6
pubmed:dateCreated
1978-1-27
pubmed:abstractText
The potential role of IgA antibody to Neisseria meningitidis, which blocks bacteriolysis by IgG and IgM, in producing the susceptible state in military recruits, a population at greater than expected risk, was investigated in 28 patients with meningococcal disease. IgA was removed from acute-phase sera by immunoadsorption; IgG was separated by ion-exchange, and IgM by gel-filtration chromatography. The bactericidal activity of acute-phase sera, before and after removal of IgA, and of IgG and IgM fractions from the sera, was tested against each of the homologous infecting strains. Bactericidal activity, the correlate of protective immunity, was deficient in 24 of 28 unabsorbed sera, but uniformly present after the removal of IgA in a median titer of 1:16. IgM accounted for all or nearly all of the bactericidal activity. IgG was largely inactive. Susceptibility to meningococcal disease may be affected by the blocking of bactericidal IgM by circulating IgA.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
AIM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Dec
pubmed:issn
0022-1899
pubmed:author
pubmed:issnType
Print
pubmed:volume
136
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
733-9
pubmed:dateRevised
2009-10-27
pubmed:meshHeading
pubmed:year
1977
pubmed:articleTitle
Immunoepidemiology of meningococcal disease in military recruits. II. Blocking of serum bactericidal activity by circulating IgA early in the course of invasive disease.
pubmed:publicationType
Journal Article