Effect of Indomethacin on Local Cerebral Blood Flow in Awake, Minimally Restrained Rats

Abstract
The effect of indomethacin (10 mg kg−1) on local CBF (l-CBF) was studied with autoradiographic techniques in awake, minimally restrained rats. When compared with uninjected awake control animals, those given indomethacin showed a reduction of l-CBF by 25–45%. This reduction is somewhat less pronounced than that previously obtained in paralyzed animals maintained on 70% N2O (a reduction by 30–60%). An enhancement of the indomethacin response during nitrous oxide anesthesia was mainly observed in structures which show a maintained or increased CBF during anesthesia.