From the Dept. of lmmunology, Faculty of Medicine, Tehran University of Medical Sciences, Tehran, Islamic Republic of Iran.
Abstract: (4371 Views)
Antineutrophil cytoplasmic autoantibodies (ANCA) were first described in
patients with necrotizing glomerulonephritis. The original observation passed
unnoticed until an association was made between ANCA and active Wegener's
granulomatosis. Since then, tremendous progress has been made in elucidating the
association between ANCA subtypes and clinicopathologic syndromes, and the
potential pathologic role of ANCA in vascular inflammation. The gold standard
method for ANCA detection is indirect immunofluorescence (IIF) microscopy of
ethanol-fixed cells. By this technique two general patterns of ANCA, acytoplasmic
pattern (c-ANCA) and a perinuclear pattern (P-ANCA) can be identifed. Recently
some reports have been published concerning the prevalence, subtypes, role and
specificity of ANCA.ln this study we searched for ANCA prevalence, subtypes,
and its relationship with disease activity in SLE patients by IIF technique. Our
results showed that all normal subjects were ANCA negative, while at least 50%
of patients were ANCA positive (majority c-ANCA type). Statistical analysis
revealed that there is no correlation between the presence of ANCA and disease
activity (p<0.01).
Type of Study:
Original Research |
Subject:
Immunology