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Acta bioquímica clínica latinoamericana

Print version ISSN 0325-2957On-line version ISSN 1851-6114

Abstract

FORASTIERO, Ricardo. Laboratory diagnosis of the antiphospholipid antibodies / 2016. Acta bioquím. clín. latinoam. [online]. 2016, vol.50, n.2, pp.255-263. ISSN 0325-2957.

Antiphospholipid antibodies (aPL) in patients with a history of thrombotic clinical complications in both venous and arterial territory and/ or obstetric morbidity define the antiphospholipid syndrome (APS). aPL in patients’ plasma can be detected as lupus anticoagulant (LA) activity through the prolongation of phospholipid-dependent clotting tests or through solid-phase assays such as ELISAs for anti-cardiolipin antibodies (aCL) or anti-b2 glycoprotein I(ab2GPI).Diagnosis of APS requires that aPL are demonstrated in at least 2 opportunities with no less than 12 weeks between two laboratory evaluations. aCL and ab2GPIof IgG and/ or IgM isotypes must be present at moderate or high titers. In recent years,there have been several recommendations for the evaluation of LA and also aPL by immunological methods. This article describes the international guidelines available for a correct diagnosis of aPL in the laboratory.

Keywords : Antiphospholipid antibodies; Antiphospholipid syndrome; Trombosis.

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