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Variable delay-to-signal : a fast paradigm for assessment of aspects of impulsi...

Testing impulsive behavior in rodents is challenging and labor-intensive. We developed a new behavioral paradigm-the Variable Delay-to-Signal (VDS) test-that provides rapid and simultaneous assessment of response and decision impulsivity in rodents. Presentation of a light at variable delays signals the permission for action (nose poke) contingent with a reward. 2 blocks of 25 trials at 3 s delay flank a block ...

Electrochemical and spectroscopic characterisation of amphetamine-like drugs: A...

A complete physicochemical characterisation of MDMA and its synthetic precursors MDA, 3,4-methylenedioxybenzaldehyde (piperonal) and 3,4-methylenedioxy-[beta]-methyl-[beta]-nitrostyrene was carried out through voltammetric assays and Raman spectroscopy combined with theoretical (DFT) calculations. The former provided important analytical redox data, concluding that the oxidative mechanism of the N-demethylation...

Synthesis and Cytotoxic Profile of 3,4-Methylenedioxymethamphetamine (“Ecstasy”...

The toxicological and redox profiles of MDMA and its major metabolites (MDA, α-methyldopamine, N-methyl-α-methyldopamine, 6-hydroxy-α-methyldopamine, 3-methoxy-α-methyldopamine) were studied to establish a structure-toxicity relationship and determine their individual contribution to cell death induction by apoptosis and/or necrosis. The results of the comparative toxicity study, using undifferentiated PC12 cel...

Obtenção e análise de metabolitos e intermediários de síntese : estudos de corr...