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Alcoholic muscle disease.

F Martin, T J Peters

    Alcohol and Alcoholism (Oxford, Oxfordshire)
    |January 1, 1985
    PubMed
    Summary
    This summary is machine-generated.

    Chronic alcohol use causes muscle damage, including acute myopathy and chronic myopathy with type II fiber atrophy. Abstaining from alcohol can reverse these muscle abnormalities.

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    Area of Science:

    • Muscle pathology
    • Toxic myopathies

    Background:

    • Chronic alcohol consumption is linked to muscle abnormalities.
    • These abnormalities include acute myopathy with myonecrosis and chronic myopathy with selective type II muscle fiber atrophy.
    • Clinical presentation and serum creatine kinase levels are often insufficient for diagnosis.

    Purpose of the Study:

    • To investigate the histopathological muscle abnormalities in chronic alcoholics.
    • To explore the underlying mechanisms of alcohol-induced myopathy.
    • To assess the reversibility of muscle damage upon alcohol cessation.

    Main Methods:

    • Histopathological examination of muscle tissue from chronic alcoholics.
    • Review of clinical features and laboratory findings.
    • Analysis of potential contributing factors such as liver disease, malnutrition, and neuropathy.

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    Main Results:

    • Two main types of muscle abnormalities were identified: acute myopathy (myonecrosis) and chronic myopathy (type II fiber atrophy).
    • These abnormalities are likely due to direct ethanol toxicity rather than secondary effects of liver disease, malnutrition, or neuropathy.
    • Reduced protein synthesis may play a significant role in the pathogenesis of chronic myopathy.

    Conclusions:

    • Alcohol-induced myopathy is a distinct entity characterized by specific histopathological changes.
    • Direct toxic effects of ethanol on muscle fibers are the primary cause.
    • Abstinence from alcohol leads to the reversal of these muscle abnormalities.