The preparation and system installation was the same as above, and 0.2 mL of TP was added into each TP group at corresponding concentration at one hour after vascular equilibrium, and 0.2 mL of menstruum was added into the control group.

• 动脉环制备及系统安装如上；血管平衡1h后；各茶多酚浓度组分别加入对应浓度的茶多酚0.；2mL；溶媒对照组加入溶媒0