[Effect of Niupo Zhibao Pellet on expression of neuronal nitric oxide synthase in brain of endotoxin-induced shock rats].

Objective: To investigate the effect of Niupo Zhibao Pellet (NPZBP) on the expression of neuronal nitric oxide synthase (nNOS) in the brain of endotoxin-induced shock rats.

Methods: SD rats were randomly divided into normal control group, endotoxin-induced shock model group and NPZBP-treated group. Lipopolysaccharide (LPS) (1.