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Acute effects of 3,4-methylenedioxymethamphetamine alone and in combination with ethanol on the immu

Acute effects of 3,4-methylenedioxymethamphetamine alone and in combination with ethanol on the immu

  1. Jatelka
    Journal of Pharmacology and Experimental Therapeutics 2001 Jan;296(1):207-15

    Pacifici R, Zuccaro P, Hernandez López C, Pichini S, Di Carlo S, Farré M, Roset PN, Ortuño J, Segura J, Torre RL.

    Cell-mediated immune response and release of cytokines after the administration of 3,4-methylenedioxymethamphetamine (MDMA, "ecstasy") alone and in combination with ethanol were assessed in a double blind, randomized, crossover, controlled clinical trial. Six healthy male recreational users of MDMA participated in four different experimental sessions, with a washout interval between sessions of 1 week, in which single oral doses of MDMA (100 mg), ethanol (0.8 g/kg), the combination of both drugs, and placebo were tested. Acute MDMA administration produced a time-dependent immune dysfunction in association with serum concentrations of the drug as well as cortisol stimulation kinetics. Although total leukocyte count remained unchanged, there was a decrease in the CD4 T/CD8 T-cell ratio due to a decrease in both the percentage and absolute number of CD4 T-helper cells and simultaneous increase in natural killer (NK) cells. Ethanol consumption produced a decrease in T-helper cells and B lymphocytes. The combination of MDMA and ethanol caused the highest suppressive effect on CD4 T cells and increasing effect in NK cells. Drugs treatment produced a high increase of immunosuppressive cytokines (transforming growth factor-beta and interleukin-10) and a switch from Th1-type cytokines (interleukin-2 and interferon-gamma) to Th2-type cytokines (interleukin-4 and interleukin-10). Disregulation in the production of pro- and anti-inflammatory cytokines with an unbalance toward anti-inflammatory response was also observed. The immune function shows a trend toward baseline levels at 24 h after MDMA kinetics. This transient defect in immunological homeostasis, if temporarily repeated, might alter the immune response with a risk for the general health status.