Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
4315757 | Behavioural Brain Research | 2007 | 5 Pages |
Abstract
Modafinil (MOD) is a wakefulness-promoting drug that improves the alertness levels in narcolepsy; however, the molecular mechanism of action remains to be elucidated. We found that after a single icv injection of MOD (10 μg/5 μl) the extracellular levels of dopamine (DA) and l-DOPA collected from the nucleus accumbens were increased and decreased, respectively. Separately, the icv administration of MOD (10 μg/5 μl) to rats enhanced wakefulness (W) whereas diminished sleep during 4 h. Lastly, the alertness induced by MOD was partially antagonized by the sleep-inducing endocannabinoid anandamide (ANA). We conclude that MOD enhances the extracellular levels of DA, promotes W and its effects on sleep are partially blocked by ANA.
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Authors
Eric Murillo-Rodríguez, Reyes Haro, Marcela Palomero-Rivero, Diana Millán-Aldaco, René Drucker-Colín,