Abstract
This review is focused on recent reports of sporadic inclusion body myositis (sIBM), myopathy in patients with human immunodeficiency virus type 1 (HIV) infection, and necrotizing autoimmune myopathy with antibodies to signal recognition particle. The sIBM articles cover associations with certain genetic polymorphisms, the possible pathogenic role of anti-cytosolic 5'-nucleotidase 1A antibody, and disease-related burden and health care costs. Another article addressed the possible pathogenic role of signal recognition particle antibody in necrotizing myopathy. A series of HIV patients with overlapping features of sIBM and polymyositis are highlighted as is a report of a patient with HIV and late-onset rod-body myopathy that may have improved with immunotherapy.
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