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Lipid storage myopathies: Current treatments and future directions

Abstract

Lipid storage myopathies (LSMs) are a heterogeneous group of genetic disorders that present with abnormal lipid storage in multiple body organs, typically muscle. Patients can clinically present with cardiomyopathy, skeletal muscle weakness, myalgia, and extreme fatigue. An early diagnosis is crucial, as some LSMs can be managed by simple nutraceutical supplementation. For example, high dosage l-carnitine is an effective intervention for patients with Primary Carnitine Deficiency (PCD). This review discusses the clinical features and management practices of PCD as well as Neutral Lipid Storage Disease (NLSD) and Multiple Acyl-CoA Dehydrogenase Deficiency (MADD). We provide a detailed summary of current clinical management strategies, highlighting issues of high-risk contraindicated treatments with case study examples not previously reviewed. Additionally, we outline current preclinical studies providing disease mechanistic insight. Lastly, we propose that a number of other conditions involving lipid metabolic dysfunction that are not classified as LSMs may share common features. These include Neurofibromatosis Type 1 (NF1) and autoimmune myopathies, including Polymyositis (PM), Dermatomyositis (DM), and Inclusion Body Myositis (IBM).

Type Journal
ISBN 1873-2194 (Electronic) 0163-7827 (Linking)
Authors Vasiljevski, E. R.; Summers, M. A.; Little, D. G.; Schindeler, A.
Responsible Garvan Author Dr Matthew Summers
Publisher Name PROGRESS IN LIPID RESEARCH
Published Date 2018-08-09
Published Volume 72
Published Pages 1-17
Status Published in-print
DOI 10.1016/j.plipres.2018.08.001
URL link to publisher's version https://www.ncbi.nlm.nih.gov/pubmed/30099045