Related Experiment Videos
[Alcohol and resistance to infections]
1Centro de Metabolismo e Endocrinologia, Laboratório de Genética, Faculdade de Medicina de Lisboa, Lisboa.
Acta Medica Portuguesa
|September 13, 2001
Summary
Alcohol suppresses the immune system by reducing tumor necrosis factor (TNF) synthesis. This increases susceptibility to infections like pneumonia and tuberculosis, and contributes to chronic inflammation and liver cirrhosis.
Area of Science:
- Immunology
- Pathophysiology
Background:
- The human body possesses intricate defense mechanisms.
- Immune responses are crucial for maintaining health.
- Cytokines, particularly IL-1, TNF, and TGF, play vital roles in immune regulation.
Purpose of the Study:
- To summarize essential immune response steps.
- To highlight the role of specific cytokines.
- To elucidate the immunosuppressive effects of alcohol.
Main Methods:
- Review of human immune defense mechanisms.
- Summary of immune response pathways.
- Analysis of alcohol's impact on cytokine synthesis.
Main Results:
- Alcohol suppresses tumor necrosis factor (TNF) synthesis.
- Suppression of TNF leads to increased susceptibility to infections.
- Alcohol consumption is linked to respiratory infections, tuberculosis, AIDS, digestive tract cancers, and chronic inflammation.
Conclusions:
- Alcohol acts as an immunosuppressor by inhibiting TNF production.
- This immunosuppression results in a higher risk of various infections and cancers.
- Chronic inflammation, potentially leading to hepatic cirrhosis, is a consequence of alcohol-induced immune suppression.