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HLA-DRB1*04 may be a marker of severity in giant cell arteritis
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Salvarani et al recently studied 39 patients with giant cell arteritis (GCA) and found no association with HLA-DRB1*04.1 In contrast, previous immunogenetic studies did show an association between HLA-DRB1*04 and GCA.2 ,3Rauzy et al, also, reported a significant increase in DRB1*04 frequency in GCA. HLA-DRB1*04 was present in 20 of their 41 patients …