摘要:目的: 从医学博士研究生SCI论文产出情况分析导师队伍建设中的问题,为改革医学博士研究生教育提供依据。 方法 :以某临床附属医院2003年～2008年毕业的医学科学学位博士研究生发表SCI论文情况及导师情况为研究对象,进行定量与定性分析。 结果 :导师所属学科水平、科研经费、国外教育背景及科研管理工作等方面均对博士生SCI论文的产出有影响。 结论 :增强导师队伍的科研能力和管理责任是完善导师队伍建设的方向。Abstract: Objective: To found the questions of tutor construction on the basis of SCI dissertation of PhD postgraduate and provide the evidence for transforming the medical doctor education.〖WTHZ〗Methods :Quantitative and qualitative analysis was done on the basis of the condition of the tutor and the publication of SCI paper of PhD postgraduates from 2003 to 2008 in second clinical Medical college of Beijing University. Results : The factors affecting the publication of SCI paper of PhD postgraduate included academic level、research fund、abroad ducation background and reseach management of the teacher. Conclusion : The reseach capability and management duty of the tutor must be strengthened to improve the construction of the tutor.
ObjectiveTo obtain the mesenchymal stem cells (MSCs) from human umbilical cord and mark in vitro, for further transplantation therapy. MethodsThe MSC were isolated from human umbilical cord by tissue explants culture method. After subculture in vitro, the morphology of hUC-MSC was observed; the surface antigens of hUC-MSC were detected by flow cytometry; adipogenic and osteogenic differentiation were determined by specific staining; hUC-MSC labelled with Brd U were identified by immunofluorescence. ResultsMSC could be isolated successfully by tissue explants culture method. When cultured about one week, the cells climbed out from the tissue block edge, proliferated and formed colonies; the hUC-MSCs of passage 5 were detected by flow cytometry, and they highly expressed CD73, CD90 and CD105, didn't express or lowly expressed CD14, CD34, CD45, CD79a and human leukocyte antigen-DR. After two weeks of adipogenic induction, they were positive in oil red O staining, and after three weeks of osteogenic induction, red precipitate could be seen by alizarin red staining, and the red fluorescence of the hUC-MSC labelled with Brd U could be detected by immunofluorescence detection. ConclusionThe cells can be isolated from human umbilical cord by tissue explants culture method, with the characteristics of hUC-MSCs and can be labeled successfully in vitro, so it can be used for the research in the field of cell transplantation.
ObjectiveTo analyze the application and efficacy of continuous positive airway pressure (CPAP) as an initial support measure for respiratory diseases in premature infants. MethodsWe retrospectively studied the clinical data of 160 premature infants hospitalized in the Neonatal Intensive Care Unit from January to December 2014. These infants accepted CPAP as the initial respiratory support. ResultsThe average birth weight and the average gestational age of the 160 premature infants were (1 581±440) g and (31.6±1.9) weeks, respectively. The main diagnosis of the primary diseases in these infants included neonatal pneumonia (81.3%), neonatal respiratory distress syndrome (57.5%), neonatal apnea (53.8%) and neonatal asphyxia (22.5%). The CPAP success rate in those infants whose birth weight was less than 1 000 g was significantly lower than those whose birth weight was equal or greater than 1 000 g (χ2=4.882, P=0.027). The perinatal period analysis showed that premature rupture of membranes, intrauterine fetal distress and maternal pregnancy complications were factors correlating with the effect of CPAP. CPAP treatment analysis showed that early application of CPAP within 24 hours after birth had a success rate of 82.4% (108/131), and initial inhaled oxygen concentration and oxygen pressure were the primary factors affecting CPAP efficacy. ConclusionApplication of CPAP is effective in respiratory support for premature infants and has a high success rate. Early application can reduce the use of mechanical ventilation and intubation. Regulating appropriate parameters helps raise the efficacy of CPAP therapy. Clinically, the standardized application of CPAP and monitoring the failure of CPAP are important for the improvement of the treatment efficacy.
【摘要】 目的 优选出紫冰栓中紫草油的最佳提取工艺。 方法 以左旋紫草素的含量为工艺考察指标，使用高效液相色谱建立左旋紫草素含量测定方法，采用L9（34）正交试验法优化紫草油的提取条件。 结果 选用紫草，加8倍菜籽油，温度140 ℃，加热0.5 h为最优提取工艺。 结论 优选的提取工艺合理、可行，质量可控。【Abstract】 Objective To optimize the preparation process of extracting arnebiae oil from Zibing suppository. Methods The optimum preparation process of extracting arnebiae oil was investigated by L9(34) orthogonal design as the shikonin content index. Results The optimum technical condition: added eight times rape oil and cooked for half an hour with the temperature of 140 ℃. Conclusion The optimized preparation procedure is feasible and the quality of the product can be controled.
目的 提高对先天性腹主动脉瘤（AAA）的认识。 方法 报道2012年11月1日先天性AAA 1 例，回顾国内外报道的24 例先天性AAA的临床资料。 结果 患儿男，2岁，以肉眼血尿起病，伴高血压、蛋白尿和反复血小板降低；多层螺旋CT血管成像（MSCTA）见AAA伴左肾动脉狭窄；彩色多普勒超声见AAA累及双侧髂总动脉伴动脉壁间血栓及钙化，左肾萎缩；保守治疗7个月后猝死，临终前头颅CT见脑梗死。回顾分析24例先天性AAA，包括肾下型AAA 15 例，肾上型AAA 5例，胸腹部AAA 2例，未具体指明类型2例；产前诊断6例，出生后诊断18例（其中包括新生儿5例和1个月～3岁婴幼儿8例）；以腹部搏动性包块起病8 例，呕吐4 例，呼吸困难2例，腰部疼痛1例，因其他疾病就诊3例；采用血管超声21例，MSCTA 16例，磁共振血管造影9例；13例肾下型AAA接受手术治疗；死于AAA破裂5例，死于心力衰竭2例。 结论 先天性AAA以肾下型为主，多为婴幼儿，常表现为腹部肿块，确诊该病首选MSCTA，主张行早期个体化手术。