维生素C对博莱霉素诱导小鼠肺纤维化的治疗作用

目的探讨维生素C(VC)对博莱霉素致肺纤维化的治疗作用。方法 60只小鼠建立博莱霉素(5mg/kg,0.2-0.3ml)肺纤维化模型后均分为4组:A组,模型对照;B组,VC 25μmol/L;C组,VC 50μmol/L;D组,VC 100μmol/L;另外取15只小鼠作为空白对照(E组)。光镜观察组织学改变,测定肺组织羟脯氨酸(Hyp)、超氧化物歧化酶(SOD)、丙二醛(MDA)含量变化。结果 VC治疗组小鼠肺组织中Hyp、MDA含量明显低于A、E组,SOD的含量增高,肺纤维化病理组织学改变明显改善。结论 VC对实验性肺纤维化具有一定的治疗作用。     

曲古抑菌素对小细胞肺癌细胞系NCI-H446的诱导分化及凋亡作用

目的探讨曲古抑菌素对NCI-H446细胞的诱导分化及凋亡的作用机制。方法用巢蛋白、CD133、波形蛋白和CD44的抗体对NCI-H446细胞进行免疫荧光染色,鉴定该细胞的干细胞特性;用NF-200、βⅢ-Tubulin、微管相关蛋白(MAP2)和BM88、Ki67的抗体进行免疫荧光染色和免疫印迹测定,观察NCI-H446细胞经曲古抑菌素诱导后向神经细胞分化的成熟程度和细胞增殖指数的变化;用Caspase-3、Bax、Bcl-2表达水平的变化,评价曲古抑菌素对小细胞肺癌的抗癌效果。结果小细胞肺癌NCI-H446细胞高表达巢蛋白、CD133、波形蛋白和CD44;曲古抑菌素诱导NCI-H446细胞向神经细胞分化并激活Caspase-3,诱导细胞的Bax表达水平增高,Bcl-2表达水平降低,细胞的增殖指数明显降低,凋亡指数明显增高。结论曲古抑菌素可诱导小细胞肺癌NCI-H446细胞分化成熟,最终激活Caspase-3通路导致细胞凋亡。     

microRNA-148a suppresses human gastric cancer cell metastasis by reversing epithelial-to-mesenchymal transition

MicroRNAs (miRNAs) are important regulators of gastric cancer development and progression. miR-148a is one of the most frequently and highly downregulated miRNAs in gastric cancer and is associated with advanced clinical stage and poor prognosis. In this study, we investigated the role of miR-148a in gastric cancer metastasis. Levels of miR-148a were determined by qRT-PCR in 60 gastric cancer samples. Cell migration and invasion assays were performed in a stably expressing miRNA-148a gastric cancer cell line established using a lentivirus expression system. Epithelial–mesenchymal transition (EMT) was evaluated using qRT-PCR and Western Blots to detect epithelial marker E-cadherin and mesenchymal marker, vimentin. Luciferase reporter assays were used to identify downstream targets and biological function of miR-148a. Gastric cancer tissue had significantly lower expression of miR-148a compared to non-tumor tissue. Low miR-148a levels were associated with lymph node metastasis, N stage, and blood vessel invasion. miR-148a overexpression inhibited metastasis of gastric cancer cells. miR-148a overexpression also downregulated vimentin expression and upregulated E-cadherin expression, suggesting that miR-148a inhibited EMT. Finally, the SMAD2 gene was identified as the direct and functional target of miR-148a. MiR-148a suppresses gastric cancer metastasis and EMT, likely via SMAD2. Restoration of miR-148a expression could have important implications in gastric cancer therapy.     

High ADAM8 Expression is Associated with Poor Prognosis in Patients with Hepatocellular Carcinoma

In this study,we investigated the ADAM8 expression in hepatocellular carcinoma (HCC) and its correlation with clinicopathologic features,including the survival of patients with HCC. Furthermore,we examined the biological processes regulated by ADAM8 during the development of using HepG2 cell line as a model system. We used immunohistochemistry to compare ADAM8 protein expression in HCC and normal liver tissues and further analyze the ADAM8 protein expression in clinicopathologically characterized 105 HCC cases.We stably knocked down the endogenous expression level of ADAM8 in HepG2 cells with specific shRNA-expressing lentiviral vector. Following the successful establishment of stable cells,we examined in vitro cell growth by MTT assay,anchorage-independent growth by soft-agar colony formation assay and cell migration/invasion by transwell and boyden chamber assay. And in addition,we also investigated the in vivo tumor growth by xenograft transplantation of HepG2 cells into nude mice. Protein expression level of ADAM8 was markedly higher in HCC tissues than that in the normal liver tissues (P?=?0.0058).In addition,high expression of ADAM8 protein was positively correlated with serum AFP elevation,tumor size,histological differentiation,tumor recurrence,tumor metastasis,and tumor stage. Patients with higher ADAM8 expression showed a significantly shorter overall survival time than patients with low ADAM8 expression. Multivariate analysis suggested that ADAM8 expression might be an independent prognostic indicator (p?=?0.016) for the survival of patients with HCC. ADAM8-specific shRNA (shADAM8) successfully knocked down its endogenous expression in HepG2 cells. Compared to the parental and control shRNA-transfected (shCtrl) HepG2 cells,the shADAM8 cells exhibited significantly reduced in vitro cell growth,anchorage-independent growth,cell migration and invasion (p?<?0.05).In vivo,the xenograft transplants from shADAM8 cells gave rise to much smaller tumors as compared to those from shCtrl cells. High ADAM8 expression is associated with poor overall survival in patients with HCC. Down-regulation of ADAM8 inhibits the growth,anchorage-independent growth,migration and invasion of HepG2 cells. ADAM8 may be a potential target of antiangiogenic therapy for HCC.     

不同治疗方法对输卵管妊娠后生育结局与卵巢功能影响的研究

目的探讨使用不同方法治疗输卵管妊娠后患者的生育结局及其影响因素。方法将238例输卵管妊娠患者分别采用3种治疗方法,A组86例,采用药物甲氨蝶呤(methotrexate,MTX)治疗;B组120例,采用输卵管切除术;C组32例,采用保守手术(保留患侧输卵管)。通过测定治疗后的性激素水平,超声测量卵巢体积、输卵管通畅度及生育结局,比较3组之间生育状况。结果输卵管切除组与其他两组比较,卵泡刺激素(follicle stimulating hormone,FSH),黄体生成素(luteinizing hormone,LH),雌二醇(estradiol,E2)值均显著升高,而卵巢体积及窦卵泡数显著减少,差异有统计学意义(P<0.05)。238例患者中,54例(22.69%)获得宫内妊娠;56例(23.53%)发生重复异位妊娠;128例(53.78%)患者仍然未孕;宫内妊娠率C组37.50%,B组25.00%。重复异位妊娠率C组15.63%,B组25.83%,两组比较差异有统计学意义(P<0.05)。结论输卵管切除术影响卵巢储备功能,有生育要求的患者宜行保守性手术。在影响输卵管妊娠手术治疗后生育结局的因素中,腹腔镜手术明显优于开腹手术,保留输卵管的手术明显优于输卵管切除术。     

牛黄降压丸治疗高血压随机平行对照研究

摘要：[目的]观察牛黄降压丸治疗高血压疗效。[方法]使用随机平行对照方法,将104例住院患者按随机数字表分为两组。对照组52例复方利血平氨苯蝶啶片,20mg/次,1次／d。治疗组52例牛黄降压丸,9g／次,2次／d。连续治疗30d为1疗程。观测临床症状、血压、不良反应。连续治疗2疗程（60d）,判定疗效。[结果始疗组显效28例,有效19例,无效5例,总有效率90．38％。对照组显效20例,有效16例,无效16例,总有效率69．23％。治疗组疗效优于对照组（P〈0．01）。两组血压均有改善（P〈0．05）,治疗组改善优于对照组（P〈0．05,P〈0．01）。[结论]牛黄降压丸治疗高血压效果显著,值得推广。     

两件式造口袋在腹部渗漏伤口中的应用

目的：探讨使用两件式造口袋进行腹部伤口渗液收集的效果。方法：随机选择本科出现腹部伤口渗漏的20例患者,应用两件式造口袋收集渗液,观察伤口周围皮炎的发生率,观察渗液引流和瘘口愈合情况。结果：伤口周围皮炎的发生率明显降低,换药间隔时间延长,窦道愈合时间缩短,患者舒适度明显提高。结论：应用两件式造口袋进行渗液的收集,避免渗液浸渍皮肤,有效地预防刺激性皮炎,促进窦道的愈合,同时减少了换药频次,节约了医疗资源。     

某院2006年至2009年降糖药物应用状况分析

目的分析评价降糖药物的用药结构,为临床合理用药提供参考依据。方法对苏大学附属宜兴医院2006年至2009年降糖药物的销售金额、用药频度等进行统计与分析。结果降糖药物总费用呈逐年增长趋势,口服降糖药物费用也同步增长。α-葡萄糖苷酶抑制剂和磺酰脲类的费用位于前2位,二甲双胍的DDDs位于首位而费用较低。结论二甲双胍和阿卡波糖已成为2型糖尿病治疗的首选药物,江苏大学附属宜兴医院降糖药物的应用基本合理。     

Cullinl蛋白与恶性肿瘤

Cullinl是cullin基因组中的一个成员,Cullinl所组装的复合体具有典型的泛素连接酶活性,介导许多细胞周期蛋白尤其是癌相关蛋白的降解过程,有效地调节着细胞周期进程。Cullinl在恶性肿瘤的发生发展中起到很重要的作用。     

冰毯联合降温法在抢救热射病患者时的应用

目的：探讨冰毯联合降温法在抢救热射病患者的降温效果。方法：以冰毯降温为中心,联合其他物理、化学方法,对28例热射病患者施行降温。结果：患者体温在1h内从（41．2±0．76）℃降至（37．4±0．48）℃;4h体温达到（35．5±0.42）℃;6h体温达到平稳（36．9±0．31）℃。结论：冰毯联合降温法在抢救热射病患者时降温效果理想,应在临床中推广运用。