Resistance to activated protein C activity of an anti‐/2 ‐glycoprotein I antibody in the presence of β‐glycoprotein I

Abstract
Some researchers claim that lupus anticoagulant‐positive plasma may cause a false‐positive reaction in the test for activated protein C (APC) resistance, a hereditary thrombophilic state characterized by abnormal factor V, which frequently causes venous thrombosis, We investigated whether anti‐/32 ‐glycoprotein I antibody (aGPI), which has recently come to be regarded as an anti‐cardiolipin antibody (aCL) itself, might have an effect on the APC resistance test.

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