4014 – Anti-Cardiolipin Screen

Intended Purpose

The Anti-Cardiolipin Screen is a semi-quantitative immunoassay for the determination of IgG, IgM and IgA antibodies against nuclear and cytoplasmic antigens in human serum. The Anti-Cardiolipin Screen is intended as an aid in the diagnosis of anti-phospholipid antibody syndrome (APAS) in conjunction with other clinical and laboratory findings. The immunoassay is designed for manual professional in vitro diagnostic use.

Diagnostic Relevance

Anti-phospholipid antibody syndrome (APAS), an autoimmune disorder evident by clinical symptoms such as thrombocytopenia, arterial (venous) thrombosis, and recurrent foetal loss, as well as systemic lupus erythematosus (SLE) are characterized by the presence of autoantibodies reactive to negatively charged phospholipids. The detection of such antibodies is well established and plays an essential role in the diagnosis of systemic autoimmune diseases.

In autoimmune patients, cardiolipin antibodies seem to recognize cardiolipin associated with plasma protein cofactors, e.g. b2 glycoprotein-I (b2 GP-I), a serum protein with a molecular weight of ca. 50 kDa, that affects platelet aggregation and coagulation. Negatively charged phospholipids such as cardiolipin interact with the positively charged fifth domain of b2 GP-I, an interaction that leads to conformational changes of the protein and the creation of new epitopes recognized by autoimmune phospholipid autoantibodies.

Product Specifications

Title Anti-Cardiolipin Screen
Product code 4014
Indication Anti-phospholipid syndrome (APAS)
Description Enzyme immunoassay for the semi-quantitative determination of IgG, IgM and IgA antibodies against Cardiolipin in human serum
Format Microtiter plate coated with cardiolipin complex
Total incubation time 105 min.
Sample volume 10 µL serum
No. of determinations 96 (93 x 1) + 1 x Calibrator + 2 x Controls

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