Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
6
pubmed:dateCreated
1986-4-3
pubmed:abstractText
Studies using an adapted immunofluorescence technique (IFT) on Crithidia luciliae to determine the complement fixing ability of antibodies to dsDNA in relation to disease manifestations, i.e., nephritis, have yielded conflicting results. To establish the relevance of these determinations, we studied sera containing antibodies to dsDNA from 64 patients with systemic lupus erythematosus (SLE), and found that anti-dsDNA of 52% of these sera had the ability to fix complement. SLE patients with nephritis demonstrated a much higher incidence of complement fixing anti-dsDNA (83%) than patients without nephritis (17%, p less than 0.01). On the other hand, patients with nephritis also had higher titers of anti-dsDNA (mean 1:400) than patients without nephritis (mean titer 1:75; p less than 0.01). A clearcut correlation between anti-dsDNA titer and complement fixing anti-dsDNA titer (p less than 0.01) was observed which obviously disturbs the correlation between nephritis and complement fixing anti-dsDNA. Comparing matched sera from patients with nephritis and patients without nephritis with the same antidsDNA titer, we found no difference in complement fixing anti-dsDNA. In the IFT used to measure complement fixing anti-dsDNA, incubation of the Crithidia slides with patients' serum was followed by an incubation with fresh normal serum which served as a source of complement. We observed that this incubation with fresh normal serum resulted in elution of anti-dsDNA antibodies from kinetoplast DNA. This elution was caused by IgG present in normal serum.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Dec
pubmed:issn
0315-162X
pubmed:author
pubmed:issnType
Print
pubmed:volume
12
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1109-17
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1985
pubmed:articleTitle
Complement-fixing antibodies to dsDNA detected by the immunofluorescence technique on Crithidia luciliae. A critical appraisal.
pubmed:publicationType
Journal Article, Comparative Study