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Cytokine levels in acute alcoholic hepatitis: a sequential study

E Rodríguez-Rodríguez1, E González-Reimers, F Santolaria-Fernández

  • 1Departamento de Medicina Interna, Hospital Universitario de Canarias, Tenerife, Canary Islands, Spain.

Drug and Alcohol Dependence
|July 1, 1995
PubMed
Summary

Enhanced macrophage activity, indicated by high tumour necrosis factor-alpha (TNF-alpha) and neopterin levels, is linked to a worse prognosis in alcoholic hepatitis patients. These markers may predict mortality in this liver disease.

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Area of Science:

  • Immunology
  • Hepatology
  • Gastroenterology

Background:

  • Chronic alcoholic liver disease involves immune dysregulation, including altered T-cell function and cytokine profiles.
  • Elevated levels of tumour necrosis factor-alpha (TNF-alpha) and other cytokines suggest enhanced macrophage activity.
  • Protracted macrophage activation and TNF-alpha production may exacerbate alcoholic hepatitis and influence disease progression.

Purpose of the Study:

  • To investigate the relationship between serum cytokine and neopterin levels and prognosis in alcoholic hepatitis.
  • To determine if specific immunological markers can predict mortality in patients with alcoholic hepatitis.

Main Methods:

  • Serum levels of TNF-alpha, interleukin-1 beta (IL-1 beta), gamma-interferon, and neopterin were sequentially measured in 43 alcoholic hepatitis patients and 20 controls.

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  • Measurements were taken at admission and at weeks 1, 3, and 6 post-admission.
  • Logistic regression analysis was used to assess the impact of these markers on mortality.

    • Main Results:

    • Alcoholic hepatitis patients exhibited higher neopterin and lower IL-1 beta and gamma-interferon levels compared to controls.
    • Serum TNF-alpha levels were almost significantly higher in patients, and critically higher in non-survivors at admission.
    • Elevated TNF-alpha and neopterin levels at admission and during follow-up were associated with increased mortality risk.

    Conclusions:

    • Enhanced macrophage activity, reflected by elevated serum TNF-alpha and neopterin, is associated with a poorer prognosis in alcoholic hepatitis.
    • Serum TNF-alpha and neopterin levels serve as significant independent predictors of mortality in alcoholic hepatitis.
    • These immunological markers may aid in risk stratification and management of alcoholic hepatitis.