机构地区:[1]天津市中心妇产科医院,300100 [2]天津市医药科学研究所
出 处:《天津医药》2020年第4期271-274,共4页Tianjin Medical Journal
基 金:天津市卫生和计划生育委员会中医中西医结合科研课题重点项目(2017065)。
摘 要:目的探讨消结安对子宫肌瘤细胞超微结构变化的影响及其治疗子宫肌瘤的作用机制.方法肌内注射苯甲酸雌二醇注射液每周3次,连续10周后,每周加注黄体酮注射液2次,连续5周,制备子宫肌瘤大鼠模型,模型制备成功大鼠按体质量随机分为模型组,消结安高、中、低剂量组,阳性药组,正常组,每组8只.消结安灌胃给药4周,观察消结安对病变大鼠子宫大体形态、血清雌激素、孕激素的变化,测定子宫颈以上横径,左侧分角子宫根部起的子宫直径,电镜观察子宫细胞超微结构的改变.结果建模后,模型组子宫系数、分角直径和分角根部直径均大于正常组(P<0.05).阳性药组、消结安高、中、低剂量组子宫系数、分角直径、分角根部直径均小于模型组(P<0.05),消结安各剂量组间差异无统计学意义.透射电镜下观察显示,消结安能有效地改善子宫肌瘤大鼠子宫的超微结构病变,抑制平滑肌细胞的异常增殖.病理检查显示,对照组子宫内膜呈分泌期变化,间质可见不同程度的嗜酸性白细胞浸润,肌层未见异常.模型组子宫内膜呈分泌期变化,子宫平滑肌层增厚,肌细胞数量增多肥大,排列欠规整,少量中性粒细胞浸润.高、中、低剂量组和阳性药组与模型组比较均有一定改善作用,子宫平滑肌层变薄,结构尚清楚,肌细胞基本恢复常态;但肌层见局部增厚,肌细胞数量增多肥大,排列欠规整.以高剂量组和阳性对照组为佳.结论消结安可使子宫肌瘤大鼠子宫体积缩小,改善子宫肌瘤细胞的超微结构,使其接近正常细胞结构,进而达到治疗作用.Objective To investigate the effect of Xiaojie-An on ultrastructural changes of uterine flesh tumour cells and reveal the possible mechanism for the treatment of uterine fibroids.Methods The rat model of hysteromyoma was established by intramuscular injection of estradiol benzoate three times a week for five weeks.The model rats were randomly divided into 5 groups according to their body weights including model group,Xiaojie-An groups(high,medium and low doses),positive drug group and control group.After treatment for 4 weeks,the changes of uterine morphology,serum estrogen and progesterone were observed,and the diameter of uterus above cervix,cervical transverse diameter of uterus from the root of left angular uterus were measured.The ultrastructure changes of uterine cells were observed under electron microscope.Results The uterine coefficient,ovarian coefficient,angular diameter and root diameter of angular fraction were all bigger in the model group than those in the control group(P<0.05).The uterine coefficient,horn diameter and root diameter were all smaller in the positive drug group than those of Xiaojie-An groups(high,medium and low doses,P<0.05).There were no significant difference in above indexes between(high,medium and low dose Xiaojie-An groups.Results of transmission electron microscopy showed that the treatment with Xiaojie-An could effectively improve the ultrastructural changes of uterine fibroids and inhibit the abnormal proliferation of smooth muscle cells.Pathological examination showed that the secretory changes in endometrium of the control group,with varying degrees of eosinophilic leukocyte infiltration in the interstitium and no abnormalities in the muscular layer.In the model group,the endometrium showed secretory changes,the smooth muscle layer of the uterus was thickened,the number of muscle cells increased,hypertrophy,irregular arrangement and small amount of neutrophils infiltration.High dose group and positive drug control group showed the better improvement.Conclusion Xiaojie-An c
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