一般流行病患病人数与人口数量之间的关系

就患病治愈后有很长免疫期的一般传染病传播过程进行研究,建立了该类疾病传播过程的动态微分方程模型.通过模型求解和数据实验测试,在假设传染强度为10-5并且恢复系数是0.2的条件下,得到结论:人类要战胜相应类别的传染病,应该尽可能把城市生活区规划成不超过2万人口的小区.     

血浆sST2联合NT-proBNP对急诊心衰患者生存状况的预测价值

目的探讨血浆sST2联合NT-proBNP对急诊心衰患者生存状况的预测价值.方法选择急诊心衰患者130例,分为心功能Ⅱ级组、心功能Ⅲ~Ⅳ级组,对照组选择健康的体检者60例.对3组NT-proBNP及血浆sST2水平进行观察对比,对心功能不同分级患者NT-proBNP及血浆sST2水平进行比较,比较NT-proBNP,sST2,NTproBNP联合血浆sST2对心衰患者死亡状况的预测价值.结果随心功能分级递增,NT-proBNP水平逐渐升高,sST2曲线下面积(0.776)及NT-proBNP对死亡判定的ROC曲线与NT-proBNP曲线下面积(0.775)相比较没有明显差异,但二者联合曲线下面积为0.813,与NT-proBNP及sST2曲线下面积相比较差异显著.sST2联合NTproBNP进行心衰患者死亡状况预测时的敏感度为99.0%,特异度为93.2%.结论作为急诊心衰患者诊断、预后和风险评估的主要标志物,sST2联合NT-proBNP对患者生存状况进行评估可以很好地预测患者的生存状况,提高准确度和敏感度,值得在临床上推广应用.     

Numerical analysis of stress distribution in the upper arm tissues under an inflatable cuff: Implications for noninvasive blood pressure measurement

An inflatable cuff wrapped around the upper arm is widely used in noninvasive blood pressure measurement. However, the mechanical interaction between cuff and arm tissues, a factor that potentially affects the accuracy of noninvasive blood pressure measurement, remains rarely addressed. In the present study, finite element (FE) mod-els were constructed to quantify intra-arm stresses generated by cuff compression, aiming to provide some theoretical evi-dence for identifying factors of importance for blood pressure measurement or explaining clinical observations. Obtained results showed that the simulated tissue stresses were highly sensitive to the distribution of cuff pressure on the arm sur-face and the contact condition between muscle and bone. In contrast, the magnitude of cuff pressure and small variations in elastic properties of arm soft tissues had little influence on the efficiency of pressure transmission in arm tissues. In par-ticular, it was found that a thickened subcutaneous fat layer in obese subjects significantly reduced the effective pres-sure transmitted to the brachial artery, which may explain why blood pressure overestimation occurs more frequently in obese subjects in noninvasive blood pressure measurement.     

2402例肿瘤化疗患者医院感染分析及预防措施

目的了解肿瘤化疗患者医院感染的现状,并探讨预防医院感染的相关措施.方法用回顾性调查方法对2 402例肿瘤化疗住院患者进行医院感染监测.结果有87例肿瘤化疗患者发生医院感染,感染率为3.62%;感染部位以呼吸道感染最高,占75.86%;肿瘤类型以肺恶性肿瘤居首,占51.72%;检出的病原菌中以革兰阴性杆菌检出最高,占65...     

普伐他汀和微粒化非诺贝特对老年人脂蛋白的影响

目的 :研究普伐他汀和微粒化非诺贝特对老年人高密度脂蛋白胆固醇 (HDL - C)和低密度脂蛋白胆固醇 (L DL - C)的作用。方法 :49例混合型高血脂的老年患者随机分成两组 ,2 7例服用普伐他汀 ,2 2例服用微粒化非诺贝特。于服药前及服药 8周后查血脂及脂蛋白。结果 :普伐他汀组 HDL - C升高 14.3% (P>0 .0 5 ) ,L DL - C下降 2 8.9% (P<0 .0 1) ;微粒化非诺贝特组 HDL - C升高 33.3% (P<0 .0 1) ,L DL - C下降 7.3%(P>0 .0 5 ) ,但两组间对比无明显差异 (P>0 .0 5 )。结论 :普伐他汀降低 L DL - C强于微粒化非诺贝特 ,而升高HDL - C微粒化非诺贝特优于普伐他汀     

疍民村庄公共卫生的人类学分析——以北海营盘镇黄稍村为例

对北海一个从事珍珠养殖村庄——黄稍村的乡村公共卫生存在的三个重要环节疾病发生、诊断和治疗进行探讨,意在呈现出珠疍这个特殊边缘群体乡村公共卫生的现实图景。     

去甲万古霉素群体药代动力学与药效学优化研究

目的研究去甲万古霉素群体药代动力学指标差异,对患者进行药效学优化。方法选取2015年1月至2015年12月268例感染患者,将其按照年龄分为中青年组和老年组,每组各134例,采用群体药代动力学和药效学优化公式进行计算,分析患者上述指标差异。结果青年组与老年组的群体药代动力学各项指标差异明显具有统计学意义(P0.05)。结论感染患者通过去甲万古霉素药物治疗疗效确切,对革兰阳性菌的杀灭作用明显,采用群体药代动力学和药效学研究后发现,AUC24/MIC能够作为去甲万古霉素的应用指标,并以此指导临床用药效果显著,值得临床应用推广。     

Some Observations on the Spectrophotometry Determination of Di-And Trihydric Phenols by Edta Titration

Abstract

Novel reaction between trioxalatoferrate (III) complex (A) and some di- and trihydric phenols were studied and found to form interesting mixed ligand chelates of iron (III) in the ratio 1:2:1 (Fe : oxalate : phenol) forming blue to violet colors at pH 4.0 to 6.5 and λ_max = 580 to 590 nm. These reactions were used for indirect volumetric and spectrophotometric microdetermination of catechol (PC), pyrogallol (PG), dopamine hydrochloride (DHCl), adrenaline hydrogen tartrate (AHT) and sulbutamol sulfate (SS) via EDTA titration using complex (A) as an indicator. PC, DHC1 and PG were determined by EDTA titration within the concentration ranges of 0.55-2.2, 0.95-3.79 and 0.65-2.52 μg ml^?1, respectively. AHT was determined in the concentration range of 96 to 204 μg ml^?1 and SS was also determined in the range 5.75 to 57.7 μg ml^?1. Adrenaline in ampoules coming from two Egyptian companies: sulbutamol in sulbovent liquids, and dopamine in five urine samples of Egyptian tumor patients, was also determined using the suggested procedure with high accuracy.     

构建和谐社会医疗卫生事业任重道远

文章从构建和谐社会的角度出发，阐述了医疗卫生事业改革，特别是改善医患关系的重要意义。     

不同频率有氧运动对糖尿病病人Resistin分泌的影响

研究不同频率有氧运动对糖尿病病人Resistin分泌的影响;实验将2015年8月至2015年9月某医院收治的60例糖尿病病人作为研究对象,随机将其划分成对照组、低频率有氧运动组和中等频率有氧运动组,对照组患者只进行常规护理、血糖监控和降糖治疗,低频率有氧运动组患者在对照组的基础上散步、慢走,对中等频率有氧运动组患者在对照组的基础上快走和慢跑。实验后低频率有氧运动组糖化血红蛋白显著低于对照组(P0.05),中等频率有氧运动组糖化血红蛋白低于对照组,差异具有非常显著性(P0.01);实验后中等频率有氧运动组空腹血糖低于对照组,差异具有非常显著性(P0.01)。实验后低频率有氧运动组TC、TG、LDL含量显著低于对照组(P0.05);实验后中等强度有氧运动组TC、TG、LDL含量明显低于对照组,差异具有非常显著性(P0.01),HDL含量显著高于对照组(P0.05)。实验后低频率有氧运动组胰岛素含量显著高于对照组(P0.05);实验后中等强度有氧运动组胰岛素含量明显高于对照组,差异具有非常显著性(P0.01),Resistin含量显著低于对照组(P0.05)。说明有氧运动能够降低血清Resistin含量,有助于糖尿病病人的康复。