[1]南 燕,侯妍妍,李玉洁.不同剂量米非司酮对子宫内膜异位症大鼠异位内膜组织中环氧合酶-2和血管内皮生长因子表达的影响[J].新乡医学院学报,2019,36(6):521-524.[doi:10.7683/xxyxyxb.2019.06.005]
 NAN Yan,HOU Yan-yan,LI Yu-jie.Effect of different doses of mifepristone on the expression of cyclooxygenase-2 and vascular endothelial growth factor in endometriosis rats[J].Journal of Xinxiang Medical University,2019,36(6):521-524.[doi:10.7683/xxyxyxb.2019.06.005]
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不同剂量米非司酮对子宫内膜异位症大鼠异位内膜组织中环氧合酶-2和血管内皮生长因子表达的影响
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《新乡医学院学报》[ISSN:1004-7239/CN:41-1186/R]

卷:
36
期数:
2019年6
页码:
521-524
栏目:
基础研究
出版日期:
2019-06-05

文章信息/Info

Title:
Effect of different doses of mifepristone on the expression of cyclooxygenase-2 and vascular endothelial growth factor in endometriosis rats
作者:
南 燕侯妍妍李玉洁
(新乡医学院第三附属医院妇产科,河南 新乡 453003)
Author(s):
NAN YanHOU Yan-yanLI Yu-jie
(Department of Gynaecology and Obstetrics,the Third Affiliated Hospital of Xinxiang Medical University,Xinxiang 453003,Henan Province,China)
关键词:
子宫内膜异位症米非司酮环氧合酶-2血管内皮生长因子
Keywords:
endometriosismifepristonecyclooxygenase-2vascular endothelial growth factor
分类号:
R965
DOI:
10.7683/xxyxyxb.2019.06.005
文献标志码:
A
摘要:
目的 探讨不同剂量米非司酮对子宫内膜异位症大鼠异位内膜组织中环氧合酶-2(COX-2)和血管内皮生长因子(VEGF)表达的影响。方法 采用自体子宫内膜移植法制备子宫内膜异位症大鼠模型。将112只造模成功的子宫内膜异位症大鼠随机分为模型组及低、中、高剂量米非司酮组,每组28只。模型组大鼠给予1 mL花生油灌胃,每日1次,共4周;低、中、高剂量米非司酮组大鼠分别以1.04、1.24、2.60 mg·kg-1给予米非司酮混悬液灌胃,每日1次,共4周。分别于治疗前和治疗4周后取各组大鼠异位内膜组织测量异位内膜体积,采用Western blot法检测异位内膜组织中COX-2、VEGF蛋白表达。结果 治疗前4组大鼠异位内膜体积比较差异均无统计学意义(P>0.05);模型组大鼠治疗后异位内膜体积与治疗前比较差异无统计学意义(P>0.05);低、中、高剂量米非司酮组大鼠治疗后异位内膜体积均小于治疗前(P<0.05)。治疗后,低、中、高剂量米非司酮组大鼠异位内膜体积均小于模型组(P<0.05);中、高剂量米非司酮组大鼠异位内膜体积小于低剂量米非司酮组(P<0.05);高剂量米非司酮组大鼠异位内膜体积小于中剂量米非司酮组(P<0.05)。治疗前4组大鼠异位内膜组织中COX-2、VEGF蛋白相对表达量比较差异无统计学意义(P>0.05)。模型组大鼠治疗后异位内膜组织中COX-2、VEGF蛋白相对表达量与治疗前比较差异无统计学意义(P>0.05);低、中、高剂量米非司酮组大鼠治疗后异位内膜组织中COX-2、VEGF蛋白相对表达量均低于治疗前(P<0.05)。低、中、高剂量米非司酮组大鼠异位内膜组织中COX-2、VEGF蛋白相对表达量均低于模型组(P<0.05);中、高剂量米非司酮组大鼠异位内膜组织中COX-2、VEGF蛋白相对表达量均低于低剂量米非司酮组(P<0.05);高剂量米非司酮组大鼠异位内膜组织中COX-2、VEGF蛋白相对表达量低于中剂量米非司酮组(P<0.05)。异位内膜组织中COX-2与VEGF蛋白表达呈正相关(r=0.782,P<0.05)。结论 米非司酮治疗大鼠子宫内膜异位症效果显著,且呈剂量效应,其可能是通过下调COX-2、VEGF蛋白的表达来发挥治疗作用。
Abstract:
Objective To investigate the effect of different doses of mifepristone on the expression of cyclooxygenase-2 (COX-2) and vascular endothelial growth factor (VEGF) in endometriosis rats.Methods The rat model of endometriosis was established by autologous endometrial transplantation method.One hundred and twelve endometriosis rats were randomly divided into model group,and low-,middle-,high-dose mifepristone group,with 28 rats in each group.The rats in the model group were given 1mL peanut oil by intragastric administration,once a day for 4 weeks;the rats in the low-,middle-,high-dose mifepristone group were given 1.04,1.24,12.60 mg·kg-1 mifepristone suspension respectively,once a day for 4 weeks.The ectopic endometrium tissues were taken before treatment and after 4 weeks treatment to measure the volume.The expressions of COX-2 and VEGF protein in ectopic endometrium were detected by Western blot.Results There was no statistic difference in the volume of ectopic endometrium of rats among the four groups before treatment(P>0.05).There was no statistic difference in the volume of ectopic endometrium of rats before and after treatment in the model group(P>0.05).The volume of ectopic endometrium of rats after treatment was smaller than that before treatment in the low-,middle-,high-dose mifepristone group (P<0.05).After treatment,the volume of ectopic endometrium of rats in the low-,middle-,high-dose mifepristone group was smaller than that in the model group (P<0.05);the volume of ectopic endometrium of rats in the middle-,high-dose mifepristone group was smaller than that in the low-dose mifepristone group (P<0.05);the volume of ectopic endometrium of rats in the high-dose mifepristone group was smaller than that in the middle-dose mifepristone group (P<0.05).There was no statistic difference in the relative expression of COX-2,VEGF protein of rats among the four groups before treatment(P>0.05).There was no statistic difference in the relative expression of COX-2,VEGF protein of rats before and after treatment in the model group(P>0.05);the relative expressions of COX-2,VEGF protein of rats after treatment were significantly lower than those before treatment in the low-,middle-,high-dose mifepristone group.The expressions of COX-2 and VEGF protein in ectopic endometrium of rats in the low-,middle-,high-dose mifepristone group were lower than those in the model group (P<0.05).The expressions of COX-2 and VEGF protein in ectopic endometrium of rats in the middle-,high-dose mifepristone group were lower than those in the low-dose mifepristone group (P<0.05).The expressions of COX-2 and VEGF protein in ectopic endometrium of rats in the high-dose mifepristone group were lower than those in the middle-dose mifepristone group (P<0.05).The expression of COX-2 in the ectopic endometrium was positively related with VEGF expression(r=0.782,P<0.05).Conclusion Mifepristone is effective in the treatment of endometriosis in rats and has a dose effect.It may play a therapeutic role by down regulating the expression of COX-2 and VEGF protein.

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更新日期/Last Update: 2019-06-05