• Addiction biology · Jan 2010

    Single exposure to cocaine or ecstasy induces DNA damage in brain and other organs of mice.

    • Tathiana A Alvarenga, Monica L Andersen, Daniel A Ribeiro, Paula Araujo, Camila Hirotsu, José L Costa, Murilo C Battisti, and Sergio Tufik.
    • Department of Psychobiology, Universidade Federal de São Paulo, Brazil.
    • Addict Biol. 2010 Jan 1; 15 (1): 96-9.

    AbstractWe evaluated the overall genetic damage induced by different doses of cocaine and MDMA (3,4-Methylenedioxymethamphetamine) in several organs. One hour after intraperitoneal drug administration, mice were euthanized; peripheral blood, liver and brain were collected, and the cellular suspensions were used for the single cell gel (comet) assay. We determined that all doses of cocaine and MDMA tested were able to induce DNA damage in blood cells. Extensive genotoxic damage was induced by cocaine or MDMA at the highest doses used in liver cells. Brain cells were affected by all doses administrated. These findings demonstrate that cocaine and MDMA are potent genotoxins.

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