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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
10 Pt 1
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pubmed:dateCreated |
1991-11-21
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pubmed:abstractText |
Previous studies of patients with rheumatoid arthritis (RA) have shown a good correlation between results from immunoturbidimetric assays of rheumatoid factor (RF) and latex fixation tests. To extend the research to non-RA subjects, we tested sera from 1000 pregnant women, half each in the first and third trimesters. By turbidimetry, 24 non-RA sera were regarded as positive for RF (greater than or equal to 20 int. units/mL) and 18 sera as borderline (15-19 int. units/mL). By the latex fixation test, 28 non-RA sera gave a clear reaction (positive) and 17 sera a weak reaction (borderline). The association between the tests was statistically highly significant (P less than 0.001). All sera with positive and borderline reactions were tested by enzyme-linked immunosorbent assay for RF isotypes, together with a random subsample of about one-sixth of the original serum samples. Positive RF results by immunoturbidimetry were predominantly due to the presence of IgM-RF. In contrast to some earlier findings, we saw no difference in the prevalence of positive RF reactions between sera from the first and third trimesters.
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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:month |
Oct
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pubmed:issn |
0009-9147
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
37
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
1766-9
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:1914182-Enzyme-Linked Immunosorbent Assay,
pubmed-meshheading:1914182-Female,
pubmed-meshheading:1914182-Humans,
pubmed-meshheading:1914182-Latex Fixation Tests,
pubmed-meshheading:1914182-Nephelometry and Turbidimetry,
pubmed-meshheading:1914182-Pregnancy,
pubmed-meshheading:1914182-Rheumatoid Factor
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pubmed:year |
1991
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pubmed:articleTitle |
Measuring rheumatoid factor in nonrheumatoid subjects: immunoturbidimetric assay, latex slide test, and enzyme-linked immunosorbent assay compared.
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pubmed:affiliation |
Department of Immunobiology, National Public Health Institute, Helsinki, Finland.
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pubmed:publicationType |
Journal Article,
Comparative Study
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