The effects of the hepatoprotective, antioxidant drug silymarin (Legalon) on some cellular immune parameters of patients with histologically proven chronic alcoholic liver disease were studied in a six month double blind study. The lectin induced proliferative activity of the lymphocytes got enhanced, the originally low T cell percentage and the originally high CD8+ cell percentage have been normalized, the antibody-dependent and natural cytotoxicity of the lymphocytes decreased during silymarin therapy. All these changes were significant, while in the placebo group no significant changes occurred, except for a moderate elevation of the T cell percentage. Thus, the immunomodulatory activity of silymarin might be involved in the hepatoprotective action of the drug and improves the depressed immunoreactivity of the patients.
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