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R Granados

4 papers in the library · 513 citations · publishing 1997-1999

Papers

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Studies on the role of dopamine in the degeneration of 5‐HT nerve endings in the brain of Dark Agouti rats following 3,4‐methylenedioxymethamphetamine (MDMA or ‘ecstasy’) administration

British Journal of Pharmacology February 1, 1999 María Isabel Colado, Esther O’shea, R Granados et al. 82 citations

We investigated whether dopamine plays a role in the neurodegeneration of 5‐hydroxytryptamine (5‐HT) nerve endings occurring in Dark Agouti rat brain after 3,4‐methylenedioxymethamphetamine (MDMA or ‘ecstasy’) administration. Haloperidol (2 mg kg −1 i.p.) injected 5 min prior and 55 min post MDMA (15 mg kg −1 i.p.) abolished the acute MDMA‐induced hyperthermia and attenuated the neurotoxic loss...

Role of hyperthermia in the protective action of clomethiazole against MDMA (‘ecstasy’)‐induced neurodegeneration, comparison with the novel NMDA channel blocker AR‐R15896AR

British Journal of Pharmacology June 1, 1998 María Isabel Colado, R Granados, Esther O’shea et al. 80 citations

The immediate effect of administration of 3,4‐methylenedioxymethamphetamine (MDMA or ‘ecstasy’) on rectal temperature and the effect of putative neuroprotective agents on this change has been examined in rats. The influence of the temperature changes on the long term MDMA‐induced neurodegeneration of cerebral 5‐hydroxytryptamine (5‐HT) nerve terminals was also examined. The novel low affinity...

In vivo evidence for free radical involvement in the degeneration of rat brain 5‐HT following administration of MDMA (‘ecstasy’) and p‐chloroamphetamine but not the degeneration following fenfluramine

British Journal of Pharmacology July 1, 1997 María Isabel Colado, Esther O’shea, R Granados et al. 175 citations

Administration of 3,4‐methylenedioxymethamphetamine (MDMA or ‘ecstasy’) to several species results in a long lasting neurotoxic degeneration of 5‐hydroxytryptaminergic neurones in several regions of the brain. We have now investigated whether this degeneration is likely to be the result of free radical‐induced damage. Free radical formation can be assessed by measuring the formation of 2,3‐ and...

A study of the neurotoxic effect of MDMA (‘ecstasy’) on 5‐HT neurones in the brains of mothers and neonates following administration of the drug during pregnancy

British Journal of Pharmacology June 1, 1997 María Isabel Colado, Esther O’shea, R Granados et al. 176 citations

It is well established that 3,4‐methylenedioxymethamphetamine (MDMA or ‘ecstasy’) is neurotoxic and produces long term degeneration of cerebral 5‐hydroxytryptamine (5‐HT) nerve terminals in many species. Since MDMA is used extensively as a recreational drug by young people, it is being ingested by many women of child bearing age. We have therefore examined the effect of administering high doses...