Fig. 2

PAF-AH plasmatic activity in patients with distinct aPL positivities. Patients presenting positive aβ2GPI IgG antibodies disclosed higher PAF-AH plasmatic activity than patients presenting only positive aβ2GPI IgM antibodies (23.1 ± 7.2 nmol/min/ml vs. 20.1 ± 5.3 nmol/min/ml; p = 0.035). Patients negative for aβ2GPI IgG or IgM antibodies showing either isolated LAC or aCL or aPS/PT-positive antibodies (*) demonstrated significantly lower PAF-AH activity (16.9 ± 3.8 nmol/min/ml; p = 0.003 vs. aβ2GPI IgM+)