Abstract:
:Repeated or even a single exposure to drugs of abuse can lead to persistent locomotor sensitization, which is the result of an abundance of neuroplastic changes occurring within the circuitry involved in motivational behavior and is thought to play a key role in certain aspects of drug addiction. There is substantial controversy about the addictive potential of modafinil, a wake-promoting drug used to treat narcolepsy that is increasingly being used as a cognitive enhancer and has been proposed as a pharmacotherapy for cocaine dependence. Male mice were used to investigate the ability of modafinil to induce locomotor sensitization after repeated or single administration in mice. Bidirectional cross-sensitization with cocaine and modafinil-induced conditioned place preference were also evaluated. Both repeated and single exposure to moderate and high doses of modafinil produced a pronounced locomotor sensitization that cross-sensitized in a bidirectional way with cocaine. Remarkably, when cocaine and modafinil were repeatedly administered sequentially, their behavioral sensitization was additive. Supporting these behavioral sensitization data, modafinil produced a pronounced conditioned place preference in the mouse. Taken together, the present findings provide pre-clinical evidence for the addictive potential of modafinil. Our data also strongly suggest that similar neural substrates are involved in the psychomotor/rewarding effects of modafinil and cocaine.
journal_name
Addict Bioljournal_title
Addiction biologyauthors
Wuo-Silva R,Fukushiro DF,Borçoi AR,Fernandes HA,Procópio-Souza R,Hollais AW,Santos R,Ribeiro LT,Corrêa JM,Talhati F,Saito LP,Aramini TC,Kameda SR,Bittencourt LR,Tufik S,Frussa-Filho Rdoi
10.1111/j.1369-1600.2011.00341.xsubject
Has Abstractpub_date
2011-10-01 00:00:00pages
565-79issue
4eissn
1355-6215issn
1369-1600journal_volume
16pub_type
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