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HLA antigens in patients with variant angina in Japan
C Kishimoto1, J D Lee, H Shimizu
1The Second Department of Internal Medicine, Faculty of Medicine, Toyama Medical and Pharmaceutical University, Japan. kkishi@kuhp.kyoto-u.ac.jp
Abstract:
There have been few reports on examining the susceptibility of variant angina. Accordingly, the major histocompatibility complexes (HLA-A, -B, -C, -DR) of unrelated Japanese patients with variant angina were examined. There were no significant differences in the frequency of HLA-A,-B, -C, and -DR antigens between patients and controls (n = 100). Although endothelial dysfunction with pathological abnormalities is suggested to be one of the etiological factors in vasospasm, immunogenetic abnormalities linked to HLA system might not play a role in the pathogenesis of variant angina.