Kinetics of postoperative hepatic norepinephrine (NE) levels in sham operated mice (Sham), in mice who had phenol solution applied to their hepatic surface (Phenol), in mice who had phenol solution painted onto their hepatic nervous plexus (Phenol painted), in microsurgical denervated mice (Sympx), and in mixed denervated mice (Mixed sympx). Liver NE content was measured at one, two, or four weeks after the operative procedures. All values are expressed as mean (SEM); n = 5–11. *p<0.05, **p<0.01, ***p<0.001 compared with the corresponding value.