Effect of spinal substance P on the artinociceptive propoties of ketamine / 中国药理学通报

ABSTRACT

Aim To investigate the effect of spinal substance P on the antinociceptive propoties of ketamine. Methods Using behaviors and Fos expression technique,the effects of intrathecal administration (it) of substance P of different dose on the ketamine induced antinociception were observed in the formalin test of mice. Results Compared with NS group, the amount of time that mice spent licking the injected paw was dose-dependently decreased in 20 and 30 mg?kg -1 groups(P