Thirty-six rabbits were divided into normal control group(n=18)and experimental group(n=18,high lipid feeding plus carotid intimal injury). The experimental group were subdivided into 1,2,and 3-month groups(n=6 in each group).

• 将36只兔分为正常对照组(18只)和实验组(高脂饲料加颈动脉内膜损伤,18只),实验组又分为术后1、2、3个月组(各6只)。