Time-Dependent Molecular Changes Following MDMA-Induced Nephrotoxicity.

Abstract

The increasing recreational use of ecstasy (MDMA) poses significant risks to human health, including reports of fatal renal failure due to its adverse renal effects. While MDMA-induced renal toxicity might result from systemic effects, there is also substantial evidence of direct harm to renal tissues by MDMA or its metabolites. The precise mechanisms underlying renal toxicity remain unclear. This study explored the impact of a single intraperitoneal dose of MDMA (20 mg/kg) on rat kidneys. Serum BUN and creatinine levels were evaluated to assess renal function, while TNF-α and TGF-β protein concentrations were measured using ELISA. mRNA levels of Bax, Bcl-xl, and Bcl-2 were quantified using quantitative RT-PCR. Additionally, apoptosis and histopathological changes in renal tissue were examined. Results showed a transient increase in serum BUN and creatinine in MDMA-treated rats. There were decreases in TNF-α and TGF-β levels in the renal tissue. Both pro-apoptotic Bax and anti-apoptotic Bcl-xl gene expressions were significantly reduced, whereas Bcl-2 expression and apoptosis did not show significant changes. No structural alterations were observed in the renal tissues. Overall, this study suggests that the renal adverse effects of MDMA may be mediated through the disruption of cytokine pathways, with notable reductions in TGF-β possibly linked to decreased TNF-α levels.

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