ACLY and systemic lupus erythematosus: In a study done in Bahrain, aCL were detected in 23% while anti-ß2GP1were detected in 16.6% of SLE patients.8 In another study, 55% of SLE patients (CNS Lupus) were positive for aPL antibodies.9 Sanna G et al. found 60% of their SLE/CNS patients to have aPL.