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Related Experiment Videos

AIDS-related myopathy.

Rafiq A. Sheikh1, Shagufta Yasmeen, Robert Munn

  • 1Department of Medicine, University of California Davis Medical Center, Sacramento, CA, USA.

Medical Electron Microscopy : Official Journal of the Clinical Electron Microscopy Society of Japan
|January 26, 2002
PubMed
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Human immunodeficiency virus (HIV) infection can cause myopathy, leading to muscle weakness. This study details two cases, one inflammatory myopathy linked to HIV and another due to zidovudine, highlighting diverse HIV-associated muscle conditions.

Area of Science:

  • Neurology
  • Infectious Diseases
  • Pathology

Background:

  • Human immunodeficiency virus (HIV) infection is frequently linked to acquired immunodeficiency syndrome (AIDS).
  • Muscle weakness, a symptom of myopathy, can manifest at any stage of HIV infection.
  • Wasting is a defining clinical characteristic of AIDS.

Purpose of the Study:

  • To present two illustrative cases of HIV-associated myopathies.
  • To review inflammatory myopathies directly related to HIV infection.
  • To discuss myopathy resulting from zidovudine treatment in HIV patients.

Main Methods:

  • Case study of two patients with HIV-associated myopathies.
  • Analysis of muscle biopsies to identify structural and mitochondrial changes.

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  • Review of existing literature on HIV-associated myopathies.

    • Main Results:

    • Biopsies revealed myofiber structural alterations, necrosis, lipid droplets, and inflammation in both patients.
    • One patient exhibited inflammatory myositis likely due to HIV infection.
    • The zidovudine-treated patient showed significant mitochondrial abnormalities, including enlargement and cristae disorganization.

    Conclusions:

    • HIV infection can lead to diverse myopathies, including inflammatory types and those associated with antiretroviral therapy.
    • Muscle biopsy is crucial for diagnosing and differentiating HIV-associated myopathies.
    • Understanding these myopathies is vital for managing HIV patients and mitigating treatment side effects.