The rats were randomly divided into 7 groups,such as model group,high dose of CQT group,middle dose of CQT group,low dose of CQT group,captopril group,sham operation group and natural group.

• 大鼠随机分为7组:模型组、复方七芍降压片高剂量组、复方七芍降压片中剂量组、复方七芍降压片低剂量组、卡托普利组、假手术组和正常组。