孟鲁司特联合糖皮质激素对支气管哮喘患者血清MPO、ENO1水平及肺功能的影响

目的 探讨孟鲁司特联合糖皮质激素对支气管哮喘患者肺功能及中性粒细胞炎症因子的影响.方法 选取支气管哮喘患者82例,应用随机数字表法分为观察组和对照组,每组41例.对照组患者在常规治疗基础上予以糖皮质激素类药物布地奈德治疗,观察组患者在对照组基础上予以孟鲁司特口服.观察两组患者治疗前后临床症状评分,检测第1秒用力呼吸容积(FEV1)、用力肺活量(FVC)、呼吸峰值流速(PEF),计算FEV1/FVC值.应用酶联免疫吸附法检测气道高反应血清因子[半胱氨酸白三烯(CysLTs)、5-脂氧合酶激活蛋白(FLAP)、转化生长因子(TGF-β1)、嗜酸粒细胞阳离子蛋白(ECP)]和炎症反应血清因子[髓过氧化物酶(MPO)、α-烯醇化酶(ENO1)]水平,记录不良反应发生情况.结果 治疗1个月后,两组患者日间、夜间症状评分均较治疗前降低,且观察组低于对照组(P<0.05),FEV1、FVC、PEF、FEV1/FVC均较治疗前升高,且观察组高于对照组(P<0.05);治疗1个月后,两组患者血清CysLTs、FLAP、MPO、TGF-β1、ECP、ENO1水平均较治疗前降低,且观察组低于对照组(P<0.05);两组患者均未见明显的不良反应.结论 孟鲁司特联合糖皮质激素可显著改善支气管哮喘患者日间、夜间症状,提高肺功能,减轻炎症反应和气道高反应,且用药安全性较高,利于病情转归.     

sST2与急性冠脉综合征冠脉病变程度相关性分析

目的探讨急性冠脉综合征(ACS)中血清可溶性生长刺激表达基因2蛋白(Soluble growth stimulator gene 2protein,s ST2)、超敏C反应蛋白(High sensitive C reaction protein,Hs CRP)、中性粒细胞和淋巴细胞计数比值(Neutrophil to lymphocyte ratio,NLR)与冠脉病变程度的相关性.方法将173例冠心病患者分为急性冠脉综合征(ACS)组(110例,实验组)和稳定型心绞痛(SA)组(64例,对照组),ACS患者中包括急性心肌梗死(AMI)组54例和不稳定性心绞痛(UA)组56例,均行s ST2、Hs CRP、血常规水平检测,比较各组间血清s ST2、Hs CRP及NLR,分析其与冠脉病变严重程度(冠脉病变支数和Gensini积分)的相关性.结果 ACS组s ST2、Hs CRP及NLR均高于SA组(P0.05); AMI组s ST2、Hs CRP及NLR均高UA组(P0.05); ACS组s ST2与Hs CRP、NLR呈正相关(P0.05); s ST2、Hs CRP及NLR与ACS患者在不同冠脉病变支数之间差异无统计学意义(P 0.05); ACS组s ST2、Hs CRP及NLR与Gensini积分之间均呈正相关(P0.05);回归分析显示:s ST2、NLR是ACS冠脉病变严重程度的预测因子.结论 s ST2、Hs CRP、NLR的水平随着ACS病情进展而逐渐升高,考虑与冠脉粥样斑块的不稳定性有关; s ST2和NLR是ACS冠脉病变程度的预测因子,但s ST2的参考价值更大.     

动态分析NLR预测急性胰腺炎严重程度及器官衰竭的临床价值

目的探讨中性粒细胞与淋巴细胞比值(NLR)在预测急性胰腺炎(AP)严重程度及器官衰竭中的临床价值.方法回顾性分析141例AP患者住院当天(NLR-0)和入院后24 h(NLR-1)、48 h(NLR-2)、72 h(NLR-3) NLR值;根据AP患者严重程度分为MAP组(96例)及SAP组(45例),根据是否发生器官衰竭分为器官衰竭(-)组(117例)及器官衰竭(+)组(24例),采用ROC曲线比较NLR预测能力.结果 MAP组NLR-0,NLR-1,NLR-2,NLR-3的NLR中位数均低于SAP组(P0. 05);器官衰竭(-)组NLR-0,NLR-1,NLR-2,NLR-3的NLR中位数均低于器官衰竭(+)组(P0. 05); NLR在NLR-1时预测AP患者严重程度(AUC:0. 714,最佳截断值5. 18)及器官衰竭发生率(AUC:0. 739,最佳截断值4. 81)的准确度最高.结论 NLR入院24 h预测AP严重程度及器官衰竭发生的准确性最高.     

呼出气一氧化氮检测对咳嗽变异性哮喘控制水平的评估价值

探讨呼出气一氧化氮（FeNO）检测对咳嗽变异性哮喘控制水平的评估价值。选择2019年1月—2020年6月收治的咳嗽变异性哮喘急性期患者65例为研究组，另选咳嗽变异性哮喘缓解期患者65例为参照组。比较研究组治疗前后的呼出气一氧化氮、EOS%、FEV1与FVC、FEV1/FVC和参照组的差异，分析研究组患者的呼出气一氧化氮与EOS%、FEV1与FVC、FEV1/FVC各指标存在的相关性，对比治疗前后2组8-iso-PG水平。研究组治疗前的呼出气一氧化氮高于参照组，EOS%、FEV1与FVC、FEV1/FVC低于参照组，P<0.05。研究组治疗后的呼出气一氧化氮、EOS%、FEV1与FVC、FEV1/FVC与参照组比较，P>0.05。呼出气一氧化氮和EOS%比较，r=0.617、P=0.026<0.05，相关性表现为正相关。研究组治疗前后的8-iso-PG水平显著高于参照组，P<0.05。咳嗽变异性哮喘患者的呼出气一氧化氮水平和EOS%具有正相关的特点，经个性化治疗后患者的呼出气一氧化氮水平显著降低，肺功能指标明显改善，而患者中8-iso-PG水平也可反映其气道氧化应...     

降钙素原与C-反应蛋白在恶性肿瘤发热患者中的鉴别意义

本文探讨血清降钙素原与C-反应蛋白在恶性肿瘤发热患者中的鉴别意义.将200例肿瘤合并发热患者经检测白细胞计数、中性粒细胞百分率、PCT、CRP阳性率情况分为肿瘤感染组及肿瘤发热组,并进行比较分析.结果发现肿瘤感染组与肿瘤发热组比较:白细胞计数升高(χ2=44.505),中性粒细胞百分比升高(χ2=45.298),CRP升高(χ2=55.354),PCT升高(χ2=127.1),差异有统计学意义(P0.01).从而表明PCT和CRP检测有助于鉴别肿瘤患者的发热原因,为抗感染及肿瘤的治疗提供指导及依据.     

中性粒细胞与淋巴细胞比值对急性主动脉夹层患者 预后的预测价值

目的:探讨中性粒细胞与淋巴细胞比值(NLR)对急性主动脉夹层(AAD)患者短期和长期死亡风险的预测价值.方法:回顾性分析141例AAD患者的临床资料,分组:①依据随访2周结果将患者分为死亡组(n=41)及存活组(n=100);②依据NLR 4分位数将患者分为NLR4.33(Q1组,n=35),4.33≤NLR7.26(Q2组,n=35),7.26≤NLR11.78(Q3组,n=36),NLR≥11.78(Q4组,n=35).结果:短期内死亡组NLR显著高于存活组,死亡组NLR=9.67(6.81,13.07)、存活组NLR=6.18(3.63,11.10),死亡组的NLR水平比存活组的更高(P0.05).KM生存曲线显示,Q4组的短期和长期死亡风险均明显高于其他3组.多因素Cox比例风险回归模型显示,与Q1组比较, Q4组增加短期死亡风险28倍,HR 28.403,95%CI 3.392(237.865),增加长期死亡风险3倍,HR 3.396,95%CI 1.596(7.228),有统计学差异(P0.05).结论:入院NLR≥11.78可明显增加AAD患者的短期和长期死亡风险,NLR愈高,预后愈差.     

激素对慢性阻塞性肺疾病患者IL-8和LTB_4及肺功能的影响

目的:观察在治疗慢性阻塞性肺疾病急性加重期(AECOPD)时全身应用糖皮质激素对痰上清液和血清中白介素8(IL-8)和白三烯B4(LTB4)及肺功能的影响。方法:将33例AECOPD患者随机分为治疗组17例,对照组16例。两组均给予常规治疗,同时治疗组给予静脉和口服甲泼尼龙或泼尼松,观察比较两组治疗前后痰上清液和血清中IL-8和LTB4水平、肺功能及呼吸困难(VAS)改善情况。结果:治疗前,痰上清液和血清中IL-8、LTB4水平均高于治疗后,二者间有直线相关关系;且与第1秒钟用力呼气容积(FEV1)、第1秒钟用力呼气容积占预计值百分比(FEV1%)、第1秒钟用力呼气容积与用力肺活量的比值(FEV1/FVC)间有负相关(P0.05)。治疗后,痰上清液IL-8、LTB4的变化与痰中性粒细胞百分比(Neu%)、VAS的变化有显著相关性(P0.05)。与对照组相比,治疗组呼吸困难症状缓解快,痰中性粒细胞减少、痰上清液和血清中IL-8、LTB4的下降水平、FEV1、FEV1%和FEV1/FVC改善幅度均较大。结论:AECOPD患者IL-8和LTB4水平增高,这些变化与临床症状和肺功能相关。使用激素可减轻炎症反应、改善肺功能和缓解患者临床症状。     

布地奈德联合孟鲁司特对哮喘患者肺功能及免疫功能的影响分析

目的探讨布地奈德联合孟鲁司特对哮喘患者进行干预后患者肺功能及免疫功能的变化.方法将80例哮喘患者分为观察组和对照组,对照组采用布地奈德雾化吸入,观察组在对照组基础上服用孟鲁司特片;在治疗前及治疗结束2周后观察患者肺功能、血清IL-4及INF-γ、外周血Ig E和嗜酸性粒细胞(EOS)水平.结果治疗后两组患者FEV1,FEV1/FVC及PEF均显著升高(P0.05),且观察组升高水平显著高于对照组(P0.05);治疗后患者血清中IL-4水平显著降低(P0.05),INF-γ显著升高(P0.05),且观察组患者IL-4降低水平及INF-γ升高水平均显著高于对照组(P0.05);治疗后两组患者外周血Ig E及EOS水平均显著降低(P0.05),且观察组患者降低水平显著高于对照组(P0.05).结论应用布地奈德联合孟鲁司特对哮喘患者进行治疗,可有效改善患者肺功能及免疫功能,提高临床疗效.     

多索茶碱与噻托溴铵用于COPD治疗的临床效果研究

研究多索茶碱与噻托溴铵用于慢性阻塞性肺疾病(COPD)治疗的临床效果。选取河西学院附属张掖人民医院收治的92例COPD患者作为本次研究对象,病例选取时间2018年10月～2019年10月,以随机数字表法为分组依据,共分成2组,对照组46例给予多索茶碱进行治疗,研究组46例在对照组基础上增加噻托溴铵进行治疗。测定肺功能指标、动脉血气指标,同时统计不良反应发生率。(1)治疗后两组1秒用力呼气容积(FEV1)、一秒率[FEV1/用力肺活量(FVC)]测定值均大于治疗前(P0.05),且治疗后研究组FEV1、FEV1/FVC测定值均大于对照组(P0.05)。(2)治疗后两组动脉血二氧化碳分压测定值均小于治疗前(P0.05),血氧分压、血氧饱和度测定值均大于治疗前(P0.05),且治疗后研究组动脉血二氧化碳分压小于对照组(P0.05),血氧分压、血氧饱和度测定值均大于对照组(P0.05)。(3)研究组不良反应发生率13.04%低于对照组30.43%,差异有统计学意义(x2=4.089,P=0.043)。联合多索茶碱与噻托溴铵,将此用药方案用于治疗COPD,可改善肺功能,起到调节动脉血气指标的作用,且不良反应发生率低。     

舒利迭与孟鲁司特钠联合治疗对支气管哮喘患者肺功能的影响

观察舒利迭与孟鲁司特钠联合用药对支气管哮喘患者肺功能的影响。选取甘肃省定西市中医院收治的支气管哮喘患者92例作为研究对象,随机分为对照组和研究组,各46例。两组患者入院后均进行抗感染、平喘、止咳等常规基础治疗,对照组在常规治疗基础上给予舒利迭进行治疗,研究组在对照组基础上加用孟鲁司特钠进行治疗,两组均连续治疗3个月。观察两组患者治疗前后肺功能变化情况以及临床治疗效果。两组患者治疗前FEV1、FEV1/FVC水平差异无统计学意义(P0.05),治疗后较治疗前均有所上升(P0.05),且治疗后研究组FEV1、FEV1/FVC水平均明显高于对照组(P0.05);研究组临床治疗总有效率95.65%明显高于对照组80.43%(P0.05)。舒利迭与孟鲁司特钠联合治疗支气管哮喘疗效显著,且能明显改善患者肺功能,值得临床应用推广。     

Characterization of Ordovician carbonate reservoirs, southeastern Saskatchewan, Canada

The discovery of the prolific Ordovician Red River reservoirs in 1995 in southeastern Saskatchewan was the catalyst for extensive exploration activity which resulted in the discovery of more than 15 new Red River pools. The best yields of Red River production to date have been from dolomite reservoirs. Understanding the processes of dolomitization is, therefore, crucial for the prediction of the connectivity, spatial distribution and heterogeneity of dolomite reservoirs.The Red River reservoirs in the Midale area consist of 3～4 thin dolomitized zones, with a total thickness of about 20 m, which occur at the top of the Yeoman Formation. Two types of replacement dolomite were recognized in the Red River reservoir: dolomitized burrow infills and dolomitized host matrix. The spatial distribution of dolomite suggests that burrowing organisms played an important role in facilitating the fluid flow in the backfilled sediments. This resulted in penecontemporaneous dolomitization of burrow infills by normal seawater. The dolomite in the host matrix is interpreted as having occurred at shallow burial by evaporitic seawater during precipitation of Lake Almar anhydrite that immediately overlies the Yeoman Formation. However, the low δ18O values of dolomited burrow infills (-5.9‰～ -7.8‰, PDB) and matrix dolomites (-6.6‰～ -8.1‰, avg. -7.4‰ PDB) compared to the estimated values for the late Ordovician marine dolomite could be attributed to modification and alteration of dolomite at higher temperatures during deeper burial, which could also be responsible for its 87Sr/86Sr ratios (0.7084～0.7088) that are higher than suggested for the late Ordovician seawaters (0.7078～0.7080). The trace amounts of saddle dolomite cement in the Red River carbonates are probably related to "cannibalization" of earlier replacement dolomite during the chemical compaction.     

A computer generator for randomly layered structures

AcomputergeneratorforrandomlylayeredstructuresYUJia shun1,2,HEZhen hua2(1.TheInstituteofGeologicalandNuclearSciences,NewZealand;2.StateKeyLaboratoryofOilandGasReservoirGeologyandExploitation,ChengduUniversityofTechnology,China)Abstract:Analgorithmisintrod…     

海南岛地体及其毗邻陆缘晚中生代—新生代古地磁研究和构造演化

本文叙述了对海南岛及其毗邻大陆边缘白垩纪到第四纪地层岩石进行古地磁研究的全部工作过程。通过分析岩石中剩余磁矢量的磁偏角及磁倾角的变化,提出海南岛白垩纪以来经历的构造演化模式如下:早期伴随顺时针旋转而向南迁移,后期伴随逆时针转动并向北运移。联系该地区及邻区的地质、地球物理资料,对海南岛上述的构造地体运动提出以下认识:北部湾内早期有一拉张作用,主要是该作用使湾内地壳显著伸长减薄,形成北部湾盆地。从而导致了海南岛的早期构造运动,而海南岛后期的构造运动则主要是受南海海底扩张的影响。海南地体运动规律的阐明对于了解北部湾油气盆地的形成演化有重要的理论和实际意义。     

Exciton Seebeck in Molecular Systems

Various applications relevant to the exciton dynamics,such as the organic solar cell,the large-area organic light-emitting diodes and the thermoelectricity,are operating under temperature gradient.The potential abnormal behavior of the exicton dynamics driven by the temperature difference may affect the efficiency and performance of the corresponding devices.In the above situations,the exciton dynamics under temperature difference is mixed with     

Achieving Unusual States of Matter Under High Pressure

The elongation method,originally proposed by Imamura was further developed for many years in our group.As a method towards O(N)with high efficiency and high accuracy for any dimensional systems.This treatment designed for one-dimensional(ID)polymers is now available for three-dimensional(3D)systems,but geometry optimization is now possible only for 1D-systems.As an approach toward post-Hartree-Fock,it was also extended to     

《Chinese Science Bulletin》SUBJECT INDEX TO VOLUME 59(2014)

正~~     

An on-line scaling method for improving scalability of a database cluster

The explosive growth of the Internet and database applications has driven database to be more scalable and available, and able to support on-line scaling without interrupting service. To support more client's queries without downtime and degrading the response time, more nodes have to be scaled up while the database is running. This paper presents the overview of scalable and available database that satisfies the above characteristics. And we propose a novel on-line scaling method. Our method improves the existing on-line scaling method for fast response time and higher throughputs. Our proposed method reduces unnecessary network use, i.e. , we decrease the number of data copy by reusing the backup data. Also, our on-line scaling operation can be processed parallel by selecting adequate nodes as new node. Our performance study shows that our method results in significant reduction in data copy time.     

An improved R-tree based on childnode''s probability

R-Tree is a good structure for spatial searching. But in this indexing structure,either the sequence of nodes in the same level or sequence of traveling these nodes when queries are made is random. Since the possibility that the object appears in different MBR which have the same parents node is different, if we make the subnode who has the most possibility be traveled first, the time cost will be decreased in most of the cases. In some case, the possibility of a point belong to a rectangle will shows direct proportion with the size of the rectangle. But this conclusion is based on an assumption that the objects are symmetrically distributing in the area and this assumption is not always coming into existence. Now we found a more direct parameter to scale the possibility and made a little change on the structure of R-tree, to increase the possibility of founding the satisfying answer in the front sub trees. We names this structure probability based arranged R-tree (PBAR-tree).     

Integrating GIS Web services based on mediating architecture

The geographic information service is enabled by the advancements in general Web service technology and the focused efforts of the OGC in defining XML-based Web GIS service. Based on these models, this paper addresses the issue of services chaining,the process of combining or pipelining results from several interoperable GIS Web Services to create a customized solution. This paper presents a mediated chaining architecture in which a specific service takes responsibility for performing the process that describes a service chain. We designed the Spatial Information Process Language (SIPL) for dynamic modeling and describing the service chain, also a prototype of the Spatial Information Process Execution Engine (SIPEE) is implemented for executing processes written in SIPL. Discussion of measures to improve the functionality and performance of such system will be included.     

Tracking data management using topology of moving object database system for moving object constrained trajectory in LBS application

Advances in wireless technologies and positioning technologies and spread of wireless devices, an interest in LBS (Location Based Service) is arising. To provide location based service, tracking data should have been stored in moving object database management system (called MODBMS) with proper policies and managed efficiently. So the methods which acquire the location information at regular time intervals then, store and manage have been studied. In this paper, we suggest tracking data management techniques using topology that is corresponding to the moving path of moving object. In our techniques, we update the MODBMS when moving object arrived at a street intersection or a curved road which is represented as the node in topology and predict the location at past and future with attribute of topology and linear function. In this technique, location data that are corresponding to the node in topology are stored, thus reduce the number of update and amount of data. Also in case predicting the location,because topology are used as well as existing location information, accuracy for prediction is increased than applying linear function or spline function.