人羊膜上皮细胞移植改善AD样病变模型大鼠学习记忆能力

目的:观察人羊膜上皮细胞(h AECs)对阿尔茨海默病(AD)样病变大鼠模型的治疗效应。方法:采用胰蛋白酶消化法分离h AECs,流式细胞术分析表型。48只雄性SD大鼠随机分为假手术组、模型组、培养基组和h AECs移植组,每组12只。采用双侧脑室注入脂多糖(LPS)复制AD样病变大鼠模型。AD样病变大鼠海马区移植5×105个h AECs。细胞移植后2周,Morris水迷宫试验观察行为学变化,HE和硫磺素S染色观察海马病理变化,免疫组化染色检测β-淀粉样蛋白42(Aβ42)、Tau蛋白和乙酰胆碱(ACh)的变化,流式细胞术检测外周血T淋巴细胞亚群的变化,流式微球阵列捕获技术(cytometric bead array,CBA)检测血清细胞因子含量,免疫荧光染色检测海马区人细胞核抗原阳性细胞及其神经元特异性核蛋白(Neu N)的表达。结果:与模型组和培养基组比较,h AECs移植组大鼠逃避潜伏期明显缩短(P0.01),跨域平台次数明显增加(P0.05);海马神经元病损减轻,Aβ沉积减轻(P0.05),磷酸化Tau蛋白水平下降(P0.05),ACh增加(P0.05);外周血Th1和Th17细胞百分比下降(P0.05),而Th2和Treg细胞升高(P0.05);IL-2和IFN-γ水平下调(P0.05),而IL-4上调(P0.05);移植区可见h AECs,并表达Neu N。结论:h AECs可明显改善AD样病变模型大鼠空间辨别性学习记忆能力,减轻海马病理损伤,其免疫调节效应可能发挥重要作用。     

羊膜间充质干细胞移植治疗急性肾损害

BACKGROUND:Recent researches have reported that bone marrow mesenchymal stem cells transplantation can be used for the treatment of acute kidney injury, and human amnion-derived mesenchymal stem cells have a good therapeutic effect in repairing other tissues and organs injury. OBJECTIVE:To investigate the effect of the human amnion-derived mesenchymal stem cells transplantation on cisplatin-induced acute kidney injury. METHODS:Human amnion-derived mesenchymal stem cells were isolated, cultured and identified in vitro. Male ICR mice were randomly divided into three groups: normal control group, model group, human amnion-derived mesenchymal stem cells group, and mices in the model group and human amnion-derived mesenchymal stem cells group were used to establish acute kidney injury models. In the human amnion-derived mesenchymal stem cells group, 0.3 mL human amnion-derived mesenchymal stem cells with the concentration of 1.0×1010/L were injected into the mice via tail vein at 8 days; mice in the model group and normal control group were injected with normal saline in the same dose. RESULTS AND CONCLUSION:At 17 days after the establishment of cisplatin-induced acute kidney injury model by human amnion-derived mesenchymal stem cells transplantation, renal function examination results demonstrated that compared with model group, the blood urea nitrogen and serum creatinine levels in human amnion-derived mesenchymal stem cells group were significantly increased, and reached to the levels in normal control group. Hematoxylin-eosin staining results showed the clear and complete renal organizational structure with rich tubules in the human amnion-derived mesenchymal stem cells group, the integrity and structure were similar to those of the mice in the normal control group, but the pathological changes of the human amnion-derived mesenchymal stem cells group were significantly improved when compared with model group. At 7 days after human amnion-derived mesenchymal stem cells transplantation, double labeling immunofluorescence results showed there was a large number of humanamnion-derived mesenchymal stem cells colonization and distributionin in the nephridial tissue, a few MAB1281-FITC positive cells derived from human amnion-derived mesenchymal stem cells also found in the epithelium of kidney tubules. The human amnion-derived mesenchymal stem cells transplantation could promote the recovery of acute kidney injury.     

人羊膜间充质干细胞在大鼠受损肝组织中分化为肝细胞

背景：羊膜间充质干细胞在体外适当的诱导条件下可分化为肝细胞样细胞,而在受损肝脏原位是否可分化为肝细胞值得探讨。 目的：观察人羊膜间充质干细胞在大鼠肝损伤原位植活及分化情况。 方法：采用胰酶-胶原酶二酶消化法从羊膜组织中分离人羊膜间充质干细胞。采用腹腔注射D-氨基半乳糖建立大鼠肝损伤模型,随机分为2组,人羊膜间充质干细胞移植组造模后注射L-DMEM 悬浮的人羊膜间充质干细胞悬液,对照组注射等量L-DMEM。 结果与结论：①FCM分析结果显示,所分离的人羊膜间充质干细胞表达CD29、CD44和CD166;免疫荧光染色显示人羊膜间充质干细胞表达波形蛋白,不表达CK19。②与对照组比较,人羊膜间充质干细胞移植后肝病理无明显差异,均呈急性肝坏死病理改变。③免疫荧光双染色结果显示,人羊膜间充质干细胞移植后1周主要定植于肝小叶且表达CK19,至2周表达CK18,至3周表达Alb。结果表明,人羊膜间充质干细胞在大鼠受损肝组织中能被植活,且可分化为肝细胞,提示人羊膜间充质干细胞移植在临床肝病的治疗方面可能具有潜在应用价值。     

南京：药房托管惠民增交

去年以来，南京市在总结二级以下医疗机构药品改革经验的基础上，在市属9家三级医疗机构推行药品集中托管，至今运行平稳。     

中国国医大师系列（十一）：邓铁涛 为中医奔走呐喊

坐在面前的邓铁涛满头银发，面色红润，气度不凡，这位中医界的神奇人物，虽然九十有三，但是挺直的脊背、炯炯有神的目光、快捷的思维方式，和他的名字有着神似。     

门诊输液室中常见隐患及防范措施

根据门诊输液室常见隐患，采取针对性的防范措施，保证门诊护理工作良好运转。护士要密切观察输液室每位输液病人的病情，加强巡视，更换液体及做各项治疗操作时应认真严格执行“三查七对”、“一注意”制度，并且熟悉各种溶液及药物的性能、药理作用及配伍禁忌，发现异常情况应及时报告。     

试谈影响医学检验质量的几个因素

医学检验是一门高度综合性的应用科学，随着医疗技术的迅猛发展，医学检验在医疗活动中的地位越来越受到人们的重视，检验质量的准确性和可靠性如何，直接关系到临床医师对疾病的诊断、治疗和预后判断。那么如何全面提高检验质量和水平就显得尤为重要，现就提高临床检验常规项目质量做一浅谈。     

打造独具特色的中华品牌医院——烟台毓璜顶医院采访记

烟台,一个由联合国科教文组织评定的人类最适宜居住的城市. 毓璜顶,一座位于烟台市中心、海拔不足70米的小山. 烟台毓璜顶医院,一所身跨3个世纪,历经百年沧桑,依旧充满着勃然生机的医疗殿堂.     

耳（指）血肝癌快速特异诊断法检测各种肝病117例报告

我院引进解放军兽医大学生化教研室首创的“耳(指)血肝癌快建特异诊断法”，对117例各种肝病患者及198例健康人进行了检测，