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Related Experiment Video

Updated: Jun 13, 2026

Detection of Anti-MDA5 Autoantibodies Using HeLa Cells and Immunocytochemistry with Light Microscopy
10:55

Detection of Anti-MDA5 Autoantibodies Using HeLa Cells and Immunocytochemistry with Light Microscopy

Published on: October 31, 2025

Glucocorticoid-induced myopathy.

Rosa Maria Rodrigues Pereira1, Jozélio Freire de Carvalho

  • 1Rheumatology Division, Faculdade de Medicina, Universidade de São Paulo, avenue Dr. Arnaldo, 455, 3 andar, sala 3105, São Paulo, 01246-903, Brazil. rosamariarp@yahoo.com

Joint Bone Spine
|May 18, 2010
PubMed
Summary

Glucocorticoid-induced myopathy, a common adverse effect of steroid use, causes muscle weakness and atrophy. Treatment involves reducing or stopping steroids, switching to non-fluorinated types, and considering experimental therapies.

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Last Updated: Jun 13, 2026

Detection of Anti-MDA5 Autoantibodies Using HeLa Cells and Immunocytochemistry with Light Microscopy
10:55

Detection of Anti-MDA5 Autoantibodies Using HeLa Cells and Immunocytochemistry with Light Microscopy

Published on: October 31, 2025

Area of Science:

  • Pharmacology
  • Muscle Physiology
  • Endocrinology

Background:

  • Glucocorticoid-induced myopathy is a frequent adverse effect of glucocorticoid therapy, manifesting as muscle weakness, fatigue, and atrophy.
  • It is the most common form of drug-induced myopathy, affecting up to 60% of patients, particularly those using fluorinated glucocorticoids.
  • Glucocorticoids exert direct catabolic effects on muscle, inhibiting protein synthesis and accelerating protein breakdown, leading to atrophy.

Purpose of the Study:

  • To summarize the characteristics, mechanisms, and management of glucocorticoid-induced myopathy.
  • To highlight the importance of differentiating this condition from inflammatory muscle diseases.
  • To review current and experimental treatment strategies.

Main Methods:

  • Literature review of glucocorticoid-induced myopathy.
  • Analysis of the catabolic mechanisms of glucocorticoids on muscle tissue.
  • Evaluation of clinical differentiation from inflammatory myopathies.
  • Review of treatment options, including steroid modification and experimental therapies.

Main Results:

  • Glucocorticoid-induced myopathy is characterized by muscle weakness, atrophy, and lack of pain, distinct from inflammatory myopathies.
  • Fluorinated glucocorticoids are more frequently associated with this condition.
  • Treatment primarily involves dose reduction or discontinuation of glucocorticoids, with a preference for non-fluorinated alternatives like prednisone over fluorinated ones like dexamethasone.

Conclusions:

  • Glucocorticoid-induced myopathy is a significant concern in patients on long-term steroid therapy.
  • Prompt recognition and appropriate management, including steroid adjustment, are crucial.
  • Further research into experimental treatments like IGF-I, amino acids, creatine, androgens, and glutamine may offer additional therapeutic options.