摘要
目的探讨氧化再生纤维素防粘连膜(Interceed)治疗新西兰大白兔宫腔粘连(IUA)的有效性及其对子宫内膜容受性的影响。方法将48只雌兔随机分为4组(每组12只):正常对照组(A)、Interceed对照组(B)、模型未治疗组(C)、Interceed治疗组(D)。A组行假手术,不造模;B组:正常兔子宫内放置Interceed;C和D组均采用机械和感染双重损伤法构建IUA动物模型,C组不进行治疗,D组建模后7d宫腔内放置Interceed。各组于28d各处死4只动物,收集双侧子宫组织,行HE和Masson染色检测子宫内膜腺体计数和纤维化面积。每组剩余的8只兔于动情期刺激阴道排卵,于假孕第7天处死,取子宫组织,扫描电镜观察子宫内膜胞饮突的表达,免疫组化检测子宫内膜中整合素αVβ3蛋白水平。结果与C组比较,D组子宫内膜腺体表达及纤维化程度均明显改善(P<0.05),但A、B、D组两两比较差异均无统计学意义。A组子宫内膜表面有大量发育完全的胞饮突;B组胞饮突表达与A组相似;C组胞饮突分布稀少,发育不同步;D组胞饮突分布较C组增多,形态欠规则,发育同步。C组子宫内膜整合素αVβ3蛋白表达明显低于A组(P<0.05);D组整合素αVβ3蛋白表达较C组明显增高(P<0.05)。结论 Interceed可一定程度逆转IUA的病理改变,增加子宫内膜整合素αVβ3蛋白的表达,并改善胞饮突的表达和发育,从而改善子宫内膜的容受性。
Objective To observe the effect of anti-adhesion membrane made of oxidized regenerated cellulose（Interceed） on endometrial receptivity in New Zealand white rabbits with intrauterine adhesion（IUA）. Methods Forty-eight female rabbits were randomly divided into 4 groups（12 each）： normal control group（group A）, Interceed control group（group B）, untreated model group（group C）, and Interceed therapy group（group D）. Rabbits in group A received sham operation and underwent no modeling. The Interceed was placed into the normal rabbits’ uteruses in group B. The IUA rabbit models were reproduced in group C and group D by both mechanical injury and infection. Rabbits in group C were not treated, and in group D Interceed was put into their uteruses 7 days after modeling. Four rabbits in each group were sacrificed on the 28 th day, the uterine tissues were collected. The endometrial glands count was performed after HE staining, and the degree of endometrial fibrosis was assessed after Masson staining. For the remaining animals in each group, ovulation was induced by stimulating the vagina in estrus, and they were sacrificed and the uterine tissue was collected on the 7th day after pseudopregnancy. The expression of pinopodes in endometrium was observed by scanning electron microscopy, and that of integrin αvβ3 protein was determined by immunohistochemistry. Results The expression of glands and the degree of fibrosis in endometrium was obviously improved in group D as compared with that of group C（P〈0.05）, but no significant difference was found among the groups A, B and D. In group A, and developed pinopodes were abundantly expressed in endometrial surface, and similar changes were found in group B. The expression of pinopodes in group C was scarce, and the development was not synchronized. More pinopodes, with irregular shape and synchronized development, were expressed in group D than in group C. The expression of integrin αvβ3 protein was significantly lower in group C than in group A and group D（P〈0.05）. Conclusion Interceed may alleviate the endometrial pathological changes, increase the expression of integrin αVβ3 protein, ameliorate the expression and development of pinopodes, thus improve the endometrial receptivity.
出处
《解放军医学杂志》
CAS
CSCD
北大核心
2015年第5期344-348,共5页
Medical Journal of Chinese People's Liberation Army
基金
国家自然科学基金(81270658)~~
