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Neuroscience letters · Jun 2003
Comparative StudyNitrous oxide reverses the increase in striatal dopamine release produced by N-methyl-D-aspartate infusion in the substantia nigra pars compacta in rats.
- Norbert Balon, Lydie Dupenloup, François Blanc, Michel Weiss, and Jean-Claude Rostain.
- Université de la Méditerranée, E.A. 3280, Laboratoire de Physiopathologie et Action Thérapeutique des Gaz sous Pression, Faculté de Médecine Nord, IFR Jean Roche, 13916 Marseilles Cedex 20, France.
- Neurosci. Lett. 2003 Jun 5;343(2):147-9.
AbstractBilateral administration of NMDA (5 x 10(-10) mol) in the substantia nigra pars compacta increases the striatal dopamine (DA) release. However, this enhancing effect of NMDA was suppressed by nitrous oxide exposure at 0.1 MPa, which induced per se a decrease of the DA release. These results show that nitrous oxide exerts a reversal effect on the increase in striatal DA release produced by NMDA receptor activation in the substantia nigra pars compacta. This observation may be related to the fact that nitrous oxide is thought to produce its effects by acting as an NMDA receptor antagonist.
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