Abstract

BACKGROUND: The use of narcotics such as opium exposes addicts as susceptible targets of different diseases so that they might easily be exposed to different diseases such as fungal infections. The present study aimed to investigate the effects of addiction to opium and fungal infection on plasma levels of certain cytokines including interleukin-4 (IL-4), IL-6, IL-17, Interferon gamma (IFN-gamma) and transforming growth factor-beta (TGF-beta). METHODS: Present study included 72 individuals who were divided into 4 groups: 1) opium-addicted with fungal infection; 2) opium-addicted without fungal infection; 3) non-opium-addicted with fungal infection; and 4) normal individuals (non-opium-addicted and non-fungal infection). The fungal samples, after being detected and confirmed by a physician, were prepared based on clinical symptoms and then analyzed by direct smear and culture method. The measurement of the plasma level of cytokines was done by enzyme-linked immunosorbent assay (ELISA) method. FINDINGS: The comparison of the mean of the plasma level of cytokines showed that addiction to opium and fungal infection had significant effect on the plasma levels of IL-17, IFN-gamma, TGF-beta cytokines in all studied groups. The interaction of addiction to opium and fungal infection was only significant in the case of plasma level of IL-6. CONCLUSION: Addiction to opium and fungal infection, either separately or simultaneously, poses significant effect on the immune system and causes disorders in the cytokine network and the immune system and also provides a suitable environment for fungal infection.