Phencyclidine profoundly alters cerebral metabolism in the rat. This study explored whether cerebral metabolic effects of phencyclidine differed when the drug was self-administered by trained rats, compared with when it was given acutely to naive rats. The regional cerebral uptake of 2-deoxy-D-[1-(D14C] glucose (DG) was examined following two injections of phencyclidine (0.5 mg/kg/injection,...
The effects of phencyclidine (PCP; 0.5, 1,5, 10 mg/kg, i.v.) on local cerebral glucose utilization (LCGU) in the rat were studied with the 2-deoxy-D-[1-14C]glucose method. Significant findings were obtained in 41 of 87 brain regions of PCP-treated rats (25-270% of control). Rates of LCGU increased throughout the limbic system, except the habenula. Although LCGU increased in most sensory...