[Experimental study of Ligusticum wallichii on cerebrovascular hemodynamic parameters]

The model of experimental atherosclerosis was established by means of dietary hyperlipidemia and repeated intravenous injection of heterologous serum to make the immunologic injuries of arterial endothelium, in which the effect of Ligusticum wallichii (LW) on the cerebrovascular hemodynamic parameters (CVHP) was observed. All CVHP indexes in LW group were near that of normal group, and there was no significant difference between these two groups. The carotid arteries' mean flow (Qmean), mean velocity (Vmean), maximal velocity (Vmax), cerebrovascular peripheral compliance for zero pressure and cerebrovascular peripheral resistance (R) in LW group were significantly better than that of atherosclerotic control group (P < 0.05-0.01). The results showed that LW had protective effects on cerebral vessels.