Behavioural consequences of cocaine withdrawal in rats.
This study was designed to examine the impact of cocaine withdrawal on several behavioural parameters in rats. After 1 and 3 day withdrawal from continuous cocaine administration (50 mg kg-1 for 28 days, subcutaneous infusion via osmotic minipumps), rats showed significant changes in spontaneous locomotor activity, conditioned avoidance response and increased levels of anxiety. However, cocaine withdrawal did not alter the motor co-ordination, body weight, food and water consumption of these animals. The neurochemical effects of cocaine on central dopaminergic neuronal systems may account for locomotor deficit observed in these cocaine-withdrawal animals.
University of Nebraska Medical Center, College of Dentistry, Lincoln, Nebraska 68583-0740.
Y K
YK
Fung
L A
LA
Richard
D000818:Animals; D001007:Anxiety / Q000139:chemically induced; D001522:Behavior, Animal / Q000187:drug effects*; D003042:Cocaine / Q000009:adverse effects* / Q000494:pharmacology; D004435:Eating / Q000187:drug effects; D008297:Male; D051381:Rats; D017207:Rats, Sprague-Dawley; D013375:Substance Withdrawal Syndrome / Q000503:physiopathology*
D003042:Cocaine