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中国临床药理学与治疗学 ›› 2000, Vol. 5 ›› Issue (3): 201-203.

• 论著 • 上一篇    下一篇

雌二醇抑制动脉球囊损伤后平滑肌细胞增殖

赵智深, 黄从新, 江洪, 王滕, 王晶, 李庚山   

  1. 湖北医科大学第一附属医院心内科,武汉 430060
  • 收稿日期:2000-05-22 修回日期:2000-07-20 出版日期:2000-09-26 发布日期:2020-11-25
  • 作者简介:ZHAOZhi-Shen,male,doctoralstudent,engagedinresearchofinterventionalcardiology.

Estradiol in inhibition of proliferation of vascular smooth muscle cells after balloon injury

ZHAO Zhi-Sheng, HUANG Cong-Xin, JIANG Hong, WANG Teng, WANG Jing, LI Geng-Shan   

  1. Department of Cardiology, First Affiliated Hospital of Hubei Medical University, Wuhan 430060
  • Received:2000-05-22 Revised:2000-07-20 Online:2000-09-26 Published:2020-11-25

摘要: 目的 探讨雌二醇对去势大鼠颈总动脉球囊损伤后内膜增殖的影响。方法 8 ~ 10w k SD 大鼠雌性(n=21)、雄性(n=21),各分3 个组:非去势对照组(n=7),去势对照组(n=7),实验组(n=7,去势+雌二醇)。腹腔注射雌二醇3 d 后,2.0F PTCA 球囊损伤左颈总动脉。损伤2wk 后处死大鼠,测量内膜面积和中膜面积、内膜面积与中膜面积的比值。结果 雄性实验组内膜面积(0.072±0.020)mm2、内膜面积与中膜面积的比值 0.533±0.037 均显著小于非去势对照组 (01.10±0.018)mm2,0.740±0.051 ,P均<0.01,也均小于去势对照组(0.098±00.14)mm2,0.701 ±00.40,P均<0.05。雌性实验组内膜面积(0.061±00.15)mm2、内膜面积与中膜面积比值 0.525 ± 0.030均显著小于去势对照组 (0.101±00.18)mm2,07.10±0.031 ,P均<0.01,但与非去势对照组(0.078 ± 0.012)mm2、0.619 ±0.041 差异不显著,P均>0.05。结论 雌二醇能够抑制去势大鼠动脉损伤后内膜增殖。

关键词: 雌二醇, 内膜增殖, 平滑肌, 内皮损伤, 颈动脉

Abstract: Aim To investigate estradiol inhibition of neointimal prolife ration after rat carotid artery balloon injury.Methods Eight to ten-week old SD rats (male, n=21, female, n=21) were divided into intact control(n=7), gonadecto my control(n=7)and estradiol (n=7, gonadectomy) groups in each sex.Left carotid artery was not injured with 2.0 F PTCA balloon until estradiol was injected fo r three day s.Rats were killed 2 w k after injury. Neointimal areas and media area, ratio s of intimal areas/media areas were measured with computer.Results M ale neointimal areas and ratios of intimal areas /media areas in estradiol grouPwere less than those in intact control g rouPsignificantly(all P<0.01) and than those in gonadectomy control grouP(all P<0.05).T ho se in female, in estrdiol g rouPwere less than those in gonadectomy control grouPevidently (all P<0.01), and similar to those in intact control grouP(all P>0.05).Conclusion sEstrdiol inhibits neointimal proliferation after the gonadectomy in rats undergoing carotid artery balloon injury.

Key words: estradiol, neointimal prolife ration, smooth muscle cells, vascular endothelial injury, carotid

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