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  • Title: Statin-Induced Anti-3-Hydroxy-3-Methylglutaryl-Coenzyme A Reductase (Anti-HMGCR) Myopathy.
    Author: Ghazal F, Zur M, Silver A.
    Journal: Cureus; 2023 Jan; 15(1):e34121. PubMed ID: 36843759.
    Abstract:
    Statins are known to pharmacologically target 3-hydroxy-3-methylglutaryl-coenzyme A reductase (HMGCR). Several subtypes of anti-HMGCR autoimmune myopathies have been reported as a result of statin use. Although these types vary widely, a severe and rare form of statin-induced myopathy is immune-mediated necrotizing myopathy (IMNM), resulting in severe muscle injury that does not respond to statin cessation and is associated with poor outcomes. Diagnosis is confirmed through biopsy confirming the necrosis of biopsy fibers, in addition to elevated anti-HMGCR serum levels. Management lacks proper guidelines, however, immunosuppressive therapy has been proposed as a possible intervention. The aim of this report is to increase providers' knowledge of the presentation and possible treatment of statin-induced immune-mediated necrotizing myopathy.
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