Lupus anticoagulant
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Lupus anticoagulant is an immunoglobulin[1] that binds to phospholipids and proteins associated with the cell membrane. Its name is a partial misnomer, as it is actually a prothrombotic antibody in vivo. The name derives from their properties in vitro, as these antibodies increase coagulation times in laboratory tests such as the activated partial thromboplastin time (aPTT). Investigators speculate that the antibodies interfere with phospholipids used to induce in vitro coagulation. In vivo, the antibodies are thought to interact with platelet membrane phospholipids, increasing adhesion and aggregation of platelets, which accounts for the in vivo prothrombotic characteristics.[citation needed]
Lupus anticoagulant | |
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Other names | Lupus antibody, LA, LAC, lupus inhibitors |
The condition was first described by hematologist C. Lockard Conley in 1952.[2][3]