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  • 1
    ISSN: 1432-1440
    Keywords: Antinuclear antibodies (ANA) ; DNA-antibodies-Systemic lupus erythematosus (SLE) ; Rheumatoid arthritis (RA) ; Connective tissue diseases ; Antinucleäre Faktoren (ANF) ; Anti-DNS-Antikörper ; Lupus erythematodes disseminatus (LED) ; Rheumatoide Arthritis (RA) ; Kollagenosen
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Antinucleäre Antikörper und Anti-DNS-Antikörper wurden in den Seren von 60 Patienten, die an einem Lupus erythematodes disseminatus und 40 Patienten, die an einer rheumatoiden Arthritis erkrankt waren, bestimmt. Antinucleäre Faktoren ließen sich mit den verschiedenen Methoden in unterschiedlicher Häufigkeit und Titerhöhe nachweisen. Insgesamt wurden 9 verschiedene Untersuchungsmethoden für z.T. unterschiedliche Antikörperspezifitäten angewandt. Für die Anwendung in der Klinik erscheint eine Kombination verschiedener Techniken für die Diagnostik und Verlaufsbeobachtungen am ehesten geeignet, um neben dem pauschalen Nachweis der antinucleären Antikörper insgesamt einige spezifische Antikörperbefunde zu erfassen. Für Verlaufsbeobachtungen beim Lupus erythematodes disseminatus ist die radioimmunologische Bestimmung mit Hilfe eines Farr-Assays oder einer Doppelantikörpertechnik und wenn möglich simultaner Bestimmung der Antikörper gegen Einzelstrangund Doppelstrang-DNS am sinnvollsten.
    Notes: Summary Hundred ana-positive sera — 60 sera of SLE-patients and 40 sera of patients suffering from rheumatoid arthritis — were investigated for ana and DNA-antibodies. For these purposes nine different methods including several radioimmunological and immunofluorescence techniques with partially distinct antigen-specificities were tested. While the radioimmunoassays showed only slightly different results, significant differences in sensitivity as well as in antibody specificity existed mainly in the indirect immunofluorescence techniques using different substrates. For clinical use, a combination of various techniques seemed to be usefull i.e. indirect immunofluorescence on hemolysed bird erythrocytes and on frozen native rat liver sections. For DNA-antibodies in diagnosis and control during the course of the diseases the radioimmunoassay with simultaneous detection of antibodies to single-and double stranded DNA is most suitable. Antibodies to distinct nuclear antigens are detectable in various amount in the rheumatic diseases. While ds-DNA-antibodies seemed to be most specific for SLE, ss-DNA-antibodies occurred in nearly all ana-positive sera and seemed to be less specific for one disease than all the other ana-fractions.
    Type of Medium: Electronic Resource
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