Abstract
To search for a relationship between serum anti-beta2 glycoprotein I (anti-beta2GPI) antibodies and the occurrence of ischaemic complications in giant cell arteritis (GCA), since the latter do not correlate with anti-cardiolipin antibodies (ACL), which are frequently observed in GCA. IgG and IgM anti-beta2GPI antibodies and ACL were measured by enzyme-linked immunosorbent assays in sera, collected before treatment, from 45 unselected patients with biopsy-proven GCA, including 15 patients with ischaemic events. IgG and IgM anti-beta2GPI antibodies were not detected in any of the patients, contrasting with the presence of ACL in 51%, of them, without correlation with ischaemia. Anti-beta2GPI antibodies are not detectable in GCA, contrasting with the occurrence of ACL, and ischaemic complications are apparently unrelated to the most frequent anti-phospholipid antibodies.
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