目的 探讨骨髓间充质干细胞源性微泡(BMSC-MV)修复大鼠早发性卵巢功能不全的自噬机制。方法 大鼠骨髓分离培养骨髓间充质干细胞;超速离心法从骨髓间充质干细胞培养液中分离微泡;腹腔注射顺铂溶液制备早发性卵巢功能不全(POI)模型,制备后3 d尾静脉取血ELISA检测血清雌二醇(E2)及卵泡刺激素(FSH);尾静脉注射BMSC-MV移植治疗POI大鼠模型,移植后28 d尾静脉取血ELISA检测E2、FSH及抗苗勒管激素(AMH),同时取卵巢组织检测自噬相关蛋白LC3及P62。结果 模型对照组及微泡移植组在模型制备后3 d的E2 含量低于正常对照组,FSH 含量高于正常对照组(P<0.001);微泡移植组在移植后28 d的E2、AMH含量高于模型对照组(P<0.001),FSH含量低于模型对照组(P<0.001);微泡移植组的LC3较模型对照组表达升高,而P62表达降低(P<0.001)。结论 BMSC-MV介导自噬修复大鼠早发性卵巢功能不全。

Objective To investigate the autophagy mechanism of bone marrow mesenchymal stem cell-derived microvesicle (BMSC-MV) in repairing premature ovarian dysfunction in rats. Methods The whole bone marrow adherence method was used to isolate,culture and identify BMSCs of SD rats. Microvesicles were isolated from bone marrow mesenchymal stem cell by ultracentrifugation. Premature ovarian insufficiency (POI) model was prepared by intraperitoneal injection of cisplatin solution,and serum estradiol (E2) and follicular stimulating hormone (FSH) were detected by ELISA from tail vein 3 days after preparation. Rat model of POI was treated with BMSC-MV transplantation by tail vein. Blood from tail vein was collected 28 days after transplantation to detect E2,FSH and AMH by ELISA. Meanwhile,ovarian tissues were collected to detect autophagy-related proteins LC3 and P62. Results The E2 content of the model control group and the microvesicle transplantation group was lower than that of the normal control group,and the FSH content was higher than that of the normal control group (P<0.001). The content of E2 and AMH in the microvesicle transplantation group at 28 days after transplantation was higher than that in the model control group (P<0.001),and the content of FSH was lower than that in the model control group (P<0.001). Compared with the model control group,LC3 expression in the microvesicle transplantation group was increased,while P62 expression was decreased (P<0.001). Conclusion BMSC -MV mediate autophagy to repair premature ovarian insufficiency in rats.

目的 了解老年冠脉支架植入患者的临床特征及治疗疗效。方法 按照纳入、排除标准入选2015年10月—2017年10月于我院住院并接受冠状动脉支架治疗的患者372例,分为女性组和男性组,收集临床资料并随访预后。结果 女性组157例,男性组215例,2组冠脉病变支数、发生心血管不良事件比例无统计学意义(P>0.05),女性组不稳定性心绞痛、合并糖尿病、高血压比例及胆固醇、甘油三酯、低密度脂蛋白、脂蛋白a、TSH水平均高于男性组(P<0.05),急性心肌梗死、吸烟比例及年龄、血肌酐均低于男性组(P<0.05)。结论 老年患者合并可控制的危险因素较多,女性要强调血糖、血脂的控制,男性要强调戒烟。冠脉病变支数、术后1年发生不良心血管事件比例无性别差异。

目的 探讨宫腔积血对于中晚期妊娠结局的影响以及影响的因素。方法 结合477例中晚期宫腔积血孕妇的临床资料分析,根据妊娠结局分为正常妊娠结局组(NP)及不良妊娠结局组(AP)。结果 AP的平均孕周(23.22±6.87周)明显大于NP(16.11±4.76周),两组有明显差异性(P<0.001)。两组首次B超宫腔积血平均体积分别为8.01(2.22~28.67)(NP),13.05(3.54~26.34)mL(AP)(P=0.001),但相邻第二次测量结果两组相差不大(P=0.230)。AP组中胎盘下血肿的比率(53.4%)明显大于NP组(24.2%),而绒毛膜下血肿比率(44.0%)明显小于NP(73.8%),两组有明显差异性(P<0.001)。宫缩也是影响因素之一,在AP组可扪及宫缩的病例(88例55.3%)明显高于NP(38例11.9%),两组有明显差异性(P<0.001)。但在阴道流血率方面两组没有明显差异(P=0.407)。结论 妊娠中晚期宫腔积血可能会导致不良妊娠结局,而首次出现的孕周,急性大量宫腔出血、宫腔积血位置以及是否伴有宫缩都是影响妊娠结局的重要因素。

Objective To study the poor pregnancy outcomes of patients with intrauterine hematoma in the second and third trimesters, and discuss the risk factors. Methods We analyzed the clinical data of 477 patients who underwent routine examination in our hospital from January 2010 to June 2016 and classified them into normal pregnancy (NP) group and adverse pregnancy (AP) group according to their pregnancy outcomes. Results Gestational age at first detection of hematoma of AP group(23.22±6.87 weeks) was more than NP group (16.11±4.76 weeks)(P<0.001). The volumes of hematoma during the first detection were significantly different between the two groups (P=0.001).The average hematoma volume were 8.01(2.22-28.67)(NP),13.05(3.54-26.34)mL(AP)respectively. However, the hematoma volumes recorded in the second B-ultrasound examination were not significantly different between the two groups (P=0.230). In the AP group, the incidence of retroplacental hematoma (53.4%) was significantly higher than in the NP group (24.2%), while the incidence of subchorionic hematoma (44.0%) was significantly lower than in the NP group (73.8%)(P<0.001). The incidence of palpable contractions in the AP group (62.8%) was significantly higher than in the NP group (12.1%), P<0.001. However, the incidence of vaginal bleeding was similar (P=0.407). Conclusion Intrauterine hematoma in the second and third trimester may lead to adverse pregnancy outcomes. Risk factors for poor pregnancy outcomes are included gestational age at first diagnosis, acute and large intrauterine bleeding, location of hematoma and accompanying contraction.