5033 – Anti-dsDNA
The Anti-dsDNA is a quantitative immunoassay for the determination of IgG antibodies against double-stranded desoxyribonucleic acid (dsDNA) in human serum. The Anti-dsDNA is intended as an aid in the diagnosis of systemic lupus erythematosus (SLE) in conjunction with other clinical and laboratory findings.
The appearance of autoantibodies directed against components of the cell nucleus are characteristic features of systemic autoimmune diseases, especially systemic lupus erythematosus (SLE), Sjögren’s syndrome, progressive systemic sclerosis (PSS), mixed connective tissue disease (MCTD), rheumatoid arthritis (RA) and dermatomyositis. The detection of autoantibodies in patient sample e.g. plasma and serum, is well established and plays an essential role in the diagnosis of systemic autoimmune diseases. The American College of Rheumatology for SLE identifies antibodies to dsDNA as the hallmark for SLE diagnostics. Generic Assays offers a complete range of serological markers for systemic autoimmune diseases. All assays employ the same scheme and pre-dilution, maximizing laboratory efficiency.
The ELISA (Enzyme Linked Immunosorbent Assay) is an immunoassay for the determination of specific antibodies. The strips of the microtiter plate are coated with test-specific antigens. If antibodies are present in the patient´s sample, they bind to the antigens. A secondary antibody conjugated with the enzyme peroxidase detects the generated immune complex. A colorless substrate is converted into the colored product. The signal intensity of the reaction product is proportional to the antibody activity in the sample. After stopping the signal intensity of the reaction product is measured photometrically.
The immunoassay is designed for manual professional in vitro diagnostic use.
|Indication||Systemic lupus erythematosus|
|Description||Enzyme immunoassay for the quantitative determination of IgG antibodies against dsDNA in human serum|
|Format||Microtiter plate coated with with purified dsDNA|
|Total incubation time||105 min.|
|Sample volume||10 µL serum|
|No. of determinations||96 (90 x 1) + 5 x Calibrators + 1 x Control|