GABAB receptor agonist baclofen attenuates the development and expression of d-methamphetamine-induced place preference in rats

Autor: Ji-Wang Zheng, Su-Min Li, Lin-Lin Yin, Yan-Hua Ren, Li-Shan Pan
Rok vydání: 2001
Předmět:
Zdroj: Life Sciences. 70:349-356
ISSN: 0024-3205
DOI: 10.1016/s0024-3205(01)01397-2
Popis: The present study investigated the effect of systemic administration of the GABA(B) receptor agonist, baclofen, on the development and expression of d-methamphetamine (d-MA)-induced place preference in male Wistar rats. Using a biased and 8-day schedule of conditioning, it was found that administration of d-MA (0.5 mg/kg, i.p.) produced significant place preference. The administration of baclofen (2.5 and 5.0 mg/kg, i.p.) 30 min prior to the exposure to d-MA attenuated the development of d-MA-induced place preference (p0.05). In addition, when it was acutely administered 30 min prior to the testing session of an already established d-MA place preference, baclofen (1.25-5.0 mg/kg, i.p.) attenuated the expression of this conditioned response in a dose-dependent manner. These results showed that baclofen suppressed the rewarding effect produced by d-MA and may be potentially effective in the treatment of methamphetamine dependence and craving.
Databáze: OpenAIRE