TY - JOUR PY - 2000// TI - Naloxone-induced opiate withdrawal produces long-lasting and context-independent changes in aggressive and social behaviors of postdependent male mice JO - Behavioral neuroscience A1 - Felip, C. M. A1 - Rodríguez-Arias, M. A1 - Espejo, E. F. A1 - Miñarro, J. A1 - Stinus, L. SP - 424 EP - 430 VL - 114 IS - 2 N2 - The purpose of this study was to determine whether an environment associated with naloxone-induced morphine withdrawal affects aggressive or social behaviors in postdependent mice. Morphine-dependent or saline-treated mice received 3 naloxone injections in 1 of 2 different environments (A or B); 15 days afterward, when the mice were completely drug free, an aggression test was carried out in Environment A. All the mice suffering morphine withdrawal showed a significant increase in aggression, irrespective of the environment in which the withdrawal took place. In these conditions, the impact of morphine dependence and the 3 induced withdrawals was so profound that the environment could not be discriminative. In addition, modifications in the behavioral profile of postdependent mice that suffered only spontaneous withdrawal were long-lasting, with the mice carrying out more attacks during social investigation without presenting threat postures.

Language: en

LA - en SN - 0735-7044 UR - http://dx.doi.org/ ID - ref1 ER -