MULTIPLE-SCLEROSIS AND ANTIPHOSPHOLIPID ANTIBODIES - STUDY OF 62 PATIENTS

Introduction. - Although multiple sclerosis (MS) and antiphospholipid syndrome (AS) are usually defined by specific criteria that make them distinguishable, in some cases, transition between the two diseases ba sed on clinical and brain imaging findings is nor clear. Methods. - Ou r study included 62 patients (sex ratio F/M = 1.48; mean age 43.4 +/- 23.6 years) with diagnosis of MS according to Poser criteria and 31 co ntrol subjects (sex ratio F/M = 9.3, mean age 37 +/- 17 years). We exa mined the level of antibodies against phospholipids (anticardiolipid, anti beta2-glycoprotein 1 and antiphosphatidylethanolamine antibodies) , antinuclear, anti native DNA, antiprothrombinase antibodies and rheu matoid factor. Results. - Antiphospholipid antibodies were found with a significant level (anticardiolipid > 30 UI, anti beta2-glycoprotein 1 positive) in only Jive patients (8%) with MS; two others showed an i ncrease in antinuclear antibodies (1/320 degrees and 1/1280 degrees). Conclusion. - In contrast with data recently reported, this study fail ed to find a significant level of antiphospholipid antibodies in MS. T his result argues for the existence of different pathogenic mechanisms in MS and AS. (C) 1998 Elsevier. Paris