核磁翘楚 添E飞翔──万东MRI影奕平台推介会

北京万东医疗装备股份有限公司于2007年9月14日在北京中国大饭店举行万东MRI影奕平台推介会。万东医疗董事长贺旋、总经理蒋达、中国工程院院士刘玉清院士、中华医学会放射学分会磁共振学组组长     

Oxygenation of Liver Transplants as a Predictor of Success

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胆道支撑管显影材料的制备及体外细胞毒性评价

目的 探讨新型显影胆道支撑管材料制备的可行性，对构建出的材料进行体外细胞毒性评价和筛选。方法 选择具有X线下显影特性的基础材料A、B、C，分别与硅橡胶生胶共混炼，模压后分别得到相应的显影复合材料甲、乙、丙，经一段和二段硫化过程完成加工。采用MTT法作为体外细胞毒性评价的方法，测定参比对照材料和新材料的50％浓度的浸提液对小鼠成纤维细胞的增殖率的影响，确定细胞毒性级别。结果 新材料甲、乙、丙在x线下影像清晰。甲、乙材料的细胞毒性级别为零，丙材料细胞毒性级别为2。结论 构建出在X线下显影的弹性体材料可行。材料甲、乙是制造新型胆道支撑管的初选材料，材料丙无应用的价值。     

从脾论治磺脲类降糖药继发性失效

对 64例 2型糖尿病继发磺脲类降糖药失效患者 ,在继续口服磺脲类药的基础上加用健脾中药 ,结果显效 1 5例 ,有效 3 6例 ,无效 1 3例 ,总有效率 85 .2 4% ;治疗前后血糖明显下降 ,有显著性差异 ( P<0 .0 0 1 )     

AN EPIDEMIOLOGICAL SURVEY OF CHOLELITHIASIS IN SHANGHAI

Objective To obtain a general overview of gallstone disease in Shanghai. Methods 3415citizens aged >20 in the community of Shanghai were randomly selected to undergo a clinical epidemiological study and an ultrasound examination to screen for cholelithiasis. Results Overall prevalence rate of gallstones was 6.5% (8.6% in women and 5.1% in men). Among the 3415 persons investigated, 65 had already undergone cholecystectomy. The percentage of asymptomatic gallstone was 70 .5% . Prevalence of gallstone diseases (gallstones plus cholecystectomy) increased with age significantly. Conclusion Compared to the research in Shanghai ten years ago, especially for the persons older than 50 years, the gallstone disease has become more frequent. The proportion of asymptomatic gallstones and the awareness is increasing.     

人外周血单核细胞和脐血CD34+细胞来源的树突细胞比较

目的比较从人外周血单核细胞及脐血CD34+细胞诱导树突细胞(DC)的方法及其特性.方法用淋巴细胞分离液分离外周血单个核细胞,贴壁法获得单核细胞;经GM-CSF及IL-4诱导获得DC.磁性活化细胞分选系统(MACS)分选脐血CD34+细胞,以GM-CSF、IL-4、TNF-α、SCF、FL、TPO等细胞因子诱导获得DC.用电镜、普通显微镜观察DC形态;流式细胞仪分析DC表型;同种混合淋巴细胞反应(allo-MLR)观察DC刺激T淋巴细胞增殖的能力.结果外周血单核细胞在因子GM-CSF、IL-4、TNF-α,脐血CD34+细胞在GM-CSF、IL-4、TNF-α、SCF、FL、TPO等因子作用下,可生成DC,并表达相应的DC分化抗原CD14、CD80、CD83、CD86、HLA-DR.脐血CD34+细胞具有较强的扩增能力,经2周诱导,体系细胞数可增加173.8士26.7倍,两种来源的DC均能刺激同种异体淋巴细胞的增殖反应.结论外周血单核细胞与脐血CD34+细胞,在体外均可诱导成DC,并具有相应的DC分化抗原和功能.     

心理社会因素对医学生自信水平的影响

目的：寻找影响医学自我评价的有关因素，为提高他们的自信程度提供参考。方法：采用个人评价问卷（PEI）、应付方式问卷、症状自评量有（SCL－90）及一般情况调查表（自制）对450例学生进行调查，结果：性别、身高、体重、班委、恋爱、母亲文化程度，父亲健康状况，家庭经济状况，解决问题，求助等因素与PEI量表总分量呈显著正相关，SCL－90各因子呈显著分和总均分及自责，幻想，退缩，合理化与PEI量表总分负相关。结论：医学生的自我评价受到自身心理状况，应付方式、家庭状况等因素的影响。     

网约护士参与“互联网+护理服务”意愿及影响因素研究

目的 探讨网约护士参与“互联网+护理服务”意愿及影响因素,为提高网约护士参与“互联网+护理服务”的积极性提供参考。方法 2022年1—2月,采用便利抽样法选取广州市开展“互联网+护理服务”医院的279名网约护士为研究对象,采用一般资料调查表、“互联网+护理服务”意愿影响因素量表和组织支持量表进行调查。结果 网约护士参与“互联网+护理服务”意愿得分(12.39±1.61),控制一般资料(职务、获得从业资格时间、居家护理服务经历)的影响后,发现感知风险、感知价值、便利条件、工具支持是网约护士参与“互联网+护理服务”意愿的影响因素(R²=0.641),可解释参与意愿变异的64.1%。结论 网约护士参与“互联网+护理服务”意愿处于中等偏上水平,为患者提供“互联网+护理服务”的意愿受感知风险、感知价值、便利条件和工具支持的影响。     

产科多器官功能障碍综合征临床分析

目的探讨产科多器功能障碍综合征（MODS）的诱因、临床诊断及处理。方法对16例MODS的临床资料进行回顾性分析。结果导致MODS的主要因素为妊娠期高血压疾病及产后出血,器官功能障碍以肾功能衰竭为最多见。结论及时处理MODS的诱发因素,积极治疗妊娠期高血压疾病及产后出血,早期诊断及治疗肾功能衰竭及凝血功能障碍,是减少产科MODS患者死亡的关键。     

Lipid and lipoprotein measurements in a normal, adult Cuban population

An attempt was made to determine the normal reference values of lipid- and lipoprotein levels (cholesterol), triglycerides, cholesterol in high- and low-density lipoproteins) in a selected, apparently healthy, Cuban population. Results were expressed as mean, and various percentiles of measured values; two ratios: Risk 1 (LDL-C/HDL-C) and Risk 2 (TC/HDL-C) were also calculated. Approximately 40% of the subjects aged 20 to 30 years had cholesterol values above 200 mg/dl. Females had significantly higher cholesterol HDL-C values than males, whereas the concentrations of LDL-C and LDL were higher in males. Risk 2 ratios were elevated in males. A correlation was shown between lipid levels and age. There was a strong negative correlation between HDL-C and relative body weight. It is suggested that obesity might be an individual risk factor in the population studied.