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4926篇 您的检索式:作者名="Olsson"
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1Update on Anti-Saccharomyces cerevisiae antibodies, anti-nuclear associated anti-neutrophil antibodies and antibodies to exocrine pancreas detected by indirect immunofluorescence as biomarkers in chronic inflammatory bowel diseases: Results of a multicent显示文摘AIM: Anti-Saccharomyces cerevisiae antibodies (ASCA), anti-nuclear associated anti-neutrophil antibodies (NANA) and antibodies to exocrine pancreas (PAB), are serological tools for discriminating Crohn’s disease (CrD) and ulcerative colitis (UC). Like CrD, coeliac disease (CoD) is an inflammatory bowel disease (IBD) associated with (auto) antibodies. Performing a multicenter study we primarily aimed to determine the performance of ASCA, NANA and PAB tests for IBD diagnosis in children and adults, and secondarily to evaluate the prevalence of these markers in CoD. METHODS: Sera of 109 patients with CrD, 78 with UC, 45 with CoD and 50 healthy blood donors were retrospectively included. ASCA, NANA and PAB were detected by indirect immunofluorescence (IIF). RESULTS: ASCA+/NANA- profile displayed a positive predictive value of 94.2% for CrD. Detection of ASCA was correlated with a more severe clinical profile of CrD and treatment of the disease did not influence their serum levels. ASCA positivity was found in 37.9% of active CoD.PAB were found in 36.7% CrD and 13.3% CoD patients and were not correlated with clinical features of CrD, except with an early onset of the disease. Fifteen CrD patients were ASCA negative and PAB positive. CONCLUSION: ASCA and PAB detected by IIF are specific markers for CrD although their presence does not rule out a possible active CoD. The combination of ASCA, NANA and PAB tests improves the sensitivity of immunological markers for CrD. Repeating ASCA, NANA, and PAB testing during the course of CrD has no clinical value.S Desplat-Jégo C Johanet A Escande J Goetz N Fabien N Olsson E Ballot J Sarles JJ Baudon JC Grimaud M Veyrac P Chamouard RL Humbel 2007World Journal of Gastroenterology2007,13,16:24
2bcl-2 基因在良性前列腺增生中的作用显示文摘利用前列腺组织特异性的基因载体新型C3(1)和转基因技术,培植出人bcl2基因的前列腺组织特异性转基因鼠。免疫组织化学检测证实人bcl2蛋白在鼠前列腺上皮细胞中的过量表达。病理学观察发现,转基因鼠已发生良性前列腺增生。该实验为说明bcl2基因在良性前列腺增生(BPH)中的病理作用提供了最直接的证据,并繁殖出可稳定传代的BPH的动物模型。张学军 Chung Lee Carl Olsson Ralph Buttyan 马腾骧 1997中华泌尿外科杂志1997,18,2:15
3人类皮下和网膜脂肪组织中脂联素基因的表达和调控的研究显示文摘目标:探讨脂联素在人类皮下和网膜脂肪组织中mRNA表达水平,以及糖皮质激素和PPARγ激动剂对脂联素的调控作用。方法:应用real-time摇RT-PCR方法观察了16名成人腹部皮下和网膜脂肪组织中脂联素mRNA表达水平以及与肥胖的关系。通过体外培养,观察地塞米松(dexamethasone,DEX)和/或PPARγ激动剂(troglitazone,TGZ)对不同部位脂肪组织脂联素的表达和分泌的调控作用。结果:皮下和网膜脂肪组织脂联素mRNA表达丰富但无显著部位差异,网膜脂肪组织脂联素mRNA水平与BMI呈显著负相关(r=0.56,P<0.05)。体外培养24h后,TGZ处理组脂肪组织脂联素基因的表达明显增加(皮下:70%;网膜:102%),且网膜脂肪组织脂联素的分泌明显高于对照组(P<0.05);DEX则下调网膜脂肪组织脂联素mRNA的表达水平36%,TGZ可逆转这种抑制作用。结论:网膜脂肪组织中脂联素mRNA的表达随BMI增加而下降,并受到糖皮质激素及PPARγ激动剂调控。脂联素的部位特异性表达和调控可能是内脏型肥胖连接胰岛素抵抗的重要分子机制。李晓南 陈荣华 潘亚 Tommy Olsson Olle Hernell 2006南京医科大学学报(自然科学版)2006,26,1:12
4The market pricing of accruals quality显示文摘Jennifer Francis Ryan LaFond Per Olsson Katherine Schipper 2005Journal of Accounting and Economics2005,,2:8
5Nitrite,a novel method to decrease ischemia/reperfusion injury in the rat liver显示文摘AIM:To investigate whether nitrite administered prior to ischemia/reperfusion(I/R)reduces liver injury.METHODS:Thirty-six male Sprague-Dawley rats were randomized to 3 groups,including sham operated(n=8),45-min segmental ischemia of the left liver lobe(IR,n=14)and ischemia/reperfusion(I/R)preceded by the administration of 480 nmol of nitrite(n=14).Serum transaminases were measured after 4 h of reperfusion.Liver microdialysate(MD)was sampled in 30-min intervals and analyzed for glucose,lactate,pyruvate and glycerol as well as the total nitrite and nitrate(NOx).The NOx was measured in serum.RESULTS:Aspartate aminotransferase(AST)at the end of reperfusion was higher in the IR group than in the nitrite group(40±6.8μkat/L vs 22±2.6μkat/L,P=0.022).Similarly,alanine aminotransferase(ALT)was also higher in the I/R group than in the nitrite group(34±6μkat vs 14±1.5μkat,P=0.0045).The NOx in MD was significantly higher in the nitrite group than in the I/R group(10.1±2.9μmol/L vs 3.2±0.9μmol/L,P=0.031)after the administration of nitrite.During ischemia,the levels decreased in both groups and then increased again during reperfusion.At the end of reperfusion,there was a tendency towards a higher NOx in the I/R group than in the nitrite group(11.6±0.7μmol/L vs 9.2±1.1μmol/L,P=0.067).Lactate in MD was significantly higher in the IR group than in the nitrite group(3.37±0.18 mmol/L vs 2.8±0.12 mmol/L,P=0.01)during ischemia and the first 30 min of reperfusion.During the same period,glycerol was also higher in the IRI group than in the nitrite group(464±38μmol/L vs 367±31μmol/L,P=0.049).With respect to histology,there were more signs of tissue damage in the I/R group than in the nitrite group,and29%of the animals in the I/R group exhibited necrosis compared with none in the nitrite group.Inducible nitric oxide synthase transcription increased between early ischemia(t=15)and the end of reperfusion in both groups.CONCLUSION:Nitrite administered before liver ischemia in the rat liver reduces anaerobic metabolism and cell necrosis,which could be important in the clinical setting.Bergthor Bjrnsson Linda Bojmar Hans Olsson Tommy Sundqvist Per Sandstrm 2015World Journal of Gastroenterology2015,21,6:8
6粮食生产系统中的镉:对敏感人群的健康威胁显示文摘本文概述了瑞典农业系统中镉的状况以及镉的人类暴露状况。农业土壤(耕层)中的镉每年增加0.03%~0.05%。饲料是当地农业系统中镉增加的重要原因。当前暴露水平下已经有一些测量表明人体肾功能受到影响。如果粮食中的水平达到欧盟允许的最大限度,那么10%~25%的瑞典人群暴露的镉水平将超过暂时可容忍的每周摄入量(PTWI,7μg Cd/kg体重)。人群中的敏感者是那些低铁状况(主要是女性)和肾紊乱的个体。最近的研究表明镉对骨质疏松症有影响,但还需要进一步的研究来辨别镉是否在早期发展阶段毒害神经。必须采取坚决行动来阻止农业土壤中镉含量进一步增加。本文给出了预防及采取措施的建议。Ing-Marie Olsson Jan Eriksson Ingrid born Staffan Skerfving Agneta Oskarsson 王中英 2005AMBIO-人类环境杂志2005,34,4:6
7杨树细胞色素P450类固醇单加氧酶(CYP90)基因的克隆与分析(英文)显示文摘拟南芥的CPD基因编码一种与植物油菜素内酯(brassinosteroids,BRs)生物合成有关的细胞色素P450类固醇单加氧酶(CYP90 )。为探讨油菜素内酯这类新型植物激素在多年生木本植物中生物合成及作用的分子机理,以拟南芥CPD基因的一个cDNA片段为探针,从一种杂交杨 (Populustremula×tremudelois)的cDNA文库中分离出一个长 1 442bp的cDNA片段,然后再以这个cDNA的 5′区为探针,从这种杂交杨的基因组文库中分离出一个长 1 900bp的基因组DNA(gDNA)片段。测序结果表明,这段cDNA的 5′区与这段gDNA的 3′区重合; 由这段cDNA和gDNA组成的读框编码一个由 476个氨基酸组成的分子量为 63kD的蛋白质。该蛋白与拟南芥CYP90的同源性为 78 32%,比后者仅长 4个氨基酸,在所有已知的功能结构域,其中包括与BR生物合成密切相关的类固醇结合位点,也具有较高的同源性,表明CPD基因在一年生的草本和多年生的木本植物之间具有很高的保守性。系统树分析还表明,CYP90蛋白与番茄和玉米的矮化基因产物、鱼的all trans retinoicacid4 hydroxy lase及微澡青菌(Synechocystissp. )的细胞色素P450在进化上有较密切的联系。王新宇 王崇英 Olof Olsson 2005Acta Genetica Sinica2005,32,4:6
8人类皮下和网膜脂肪组织脂肪细胞因子的表达显示文摘目的探讨脂肪细胞因子在成人皮下和网膜脂肪组织中的表达水平。方法应用即刻定量PCR方法测定16例成人皮下和网膜脂肪组织中瘦素、脂联素、肿瘤坏死因子α(TNF-α)和抵抗素的表达水平。结果正常体重组和超重组皮下脂肪组织瘦素mRNA水平均明显高于网膜组织(P<0.01);正常组网膜脂肪组织脂联素mRNA水平较皮下组织有升高趋势(P=0.07);TNF-α和抵抗素mRNA表达水平低下且无显著部位差异。无论皮下或网膜脂肪组织瘦素表达水平均与体重指数(BMI)成正相关(皮下:r=0.68,P<0.01;网膜:r=0.71,P<0.01)),而网膜脂肪组织脂联素表达与BMI呈明显负相关(r=-0.60,P<0.05)。结论基因编码的一些细胞因子在脂肪组织中的表达呈部位特征,肥胖时皮下和网膜脂肪组织瘦素过度表达,而内脏脂肪组织脂联素表达下调,这可能是肥胖相关的胰岛素抵抗发生的潜在危险因素。李晓南 陈荣华 Tommy Olsson Olle Hernell 2005江苏医药2005,31,12:5
9退化的半干旱农业生态系统土壤碳的积累:危险和潜力显示文摘《京都议定书》意味着新的可能性:人类将把生物圈作为碳库进行管理。无论从环境还是社会经济的观点来看,把农业生态系统作为碳库是最合适可行的。非洲地区退化的生态系统显著受益于土地管理的改善(碳积累计划的一部分)。在非洲有大面积的这样的农业生态系统,对它们的恢复是一个亟待解决的问题。我们同意UNEP的观点:《气候变化公约》、《联合国防治沙漠化公约》以及《联合国生物多样性公约》相互之间将会产生潜在而重要的促进作用。我们调查了苏丹半干旱农业生态系统土壤碳含量增加的潜力,发现延长休耕期将使土壤碳增加,而农业边缘区转变成牧场后碳储量将在100年内恢复到天然萨王纳的80%。碳增汇带来的经济收益将会对这些农业生态系统的家庭经济产生显著的贡献。Lennart Olsson Jonas Ard 2002AMBIO-人类环境杂志2002,31,6:5
10Integrative taxonomy of the Russet Bush Warbler Locustella mandelli complex reveals a new species from central China显示文摘Background: The Russet Bush Warbler Locustella(previously Bradypterus) mandelli complex occurs in mountains in the eastern Himalayas, southern China, Vietnam, the Philippines, and Indonesia. The taxonomy has been debated,with one(L. seebohmi) to four(L. seebohmi, L. mandelli, L. montis and L. timorensis) species having been recognised.Methods: We used an integrative approach, incorporating analyses of morphology, vocalizations and a molecular marker, to re-evaluate species limits in the L. mandelli complex.Results: We found that central Chinese L. mandelli differed from those from India through northern Southeast Asia to southeast China in plumage, morphometrics and song. All were easily classified by song, and(wing + culmen)/tail ratio overlapped only marginally. Both groups were reciprocally monophyletic in a mitochondrial cytochrome b(cytb) gene tree, with a mean divergence of 1.0 ± 0.2%. They were sympatric and mostly altitudinally segregated in the breeding season in southern Sichuan province. We found that the Mt Victoria(western Myanmar) population differed vocally from other L. mandelli, but no specimens are available. Taiwan Bush Warbler L. alishanensis was sister to the L. mandelli complex, with the most divergent song. Plumage, vocal and cytb evidence supported the distinctness of the south Vietnamese L. mandelli idonea. The Timor Bush Warbler L. timorensis, Javan Bush Warbler L.montis and Benguet Bush Warbler L. seebohmi differed distinctly in plumage, but among-population song variation in L. montis exceeded the differences between some populations of these taxa, and mean pairwise cytb divergences were only 0.5–0.9%. We also found that some L. montis populations differed morphologically.Conclusions: We conclude that the central Chinese population of Russet Bush Warbler represents a new species,which we describe herein, breeding at mid elevations in Sichuan, Shaanxi, Hubei, Hunan and Guizhou provinces.The taxonomic status of the other allopatric populations is less clear. However, as they differ to a degree comparable with that of the sympatric L. mandelli and the new species, we elevate L. idonea to species status, and retain L. seebohmi and L. montis as separate species, the latter with timorensis as a subspecies. Further research should focus on different populations of L. montis and the Mt Victoria population of L. mandelli.Per Alstrom Canwei Xia Pamela C Rasmussen Urban Olsson Bo Dai Jian Zhao Paul J Leader Geoff J Carey Lu Dong Tianlong Cai Paul I Holt Hung Le Manh Gang Song Yang Liu Yanyun Zhang Fumin Lei 2015Chinese Birds2015,,2:4
11慢性心衰伴和不伴左室收缩功能障碍患者中心房纤颤和临床事件发生风险:来自坎地沙坦降低心衰发病率和死亡率评估(CHARM)研究的结果Olsson L.G. Swedberg K. Ducharme A. 马超 2006世界核心医学期刊文摘(心脏病学分册)2006,0,7:4
12运用卫星数据和来自国家森林清查的野外数据进行全国森林变量估计显示文摘瑞典约有55%的土地面积被森林所覆盖。目前,瑞典的森林覆盖没有统一的和地理学上明晰的描述。现存的独立性数据源是Landsat TM和SPOT HRV卫星数据、地图蒙片(map mask)和森林清查样地。它们在一起,使森林变量(如材积和林分年龄)的计算机估计成为可能。这些估计的精确度在像素水平上是低的,但在林分水平上较高。在规划木材资源应如何加以利用或出于监测目的时,这类基于栅格的森林数据对政府来说是有帮助的。本文描述了以有效成本建立森林变量估计全国数据库的生成流程。我们在林分水平上评价了瑞典西南部某地森林变量估计的精确度。结果表明,总材积估计的整体均方根误差为33%,年龄估计的整体均方根误差为23%。Heather Reese Mats Nilsson Tina Granqvist Pahlén Olle Hagner Steve Joyce Ulf Tingelf Mikael Egberth Hkan Olsson 王胜 2003AMBIO-人类环境杂志2003,32,8:4
13严重药物性肝病的后果及其预后指标Bjrnsson E. Olsson R. 徐瑞 2005世界核心医学期刊文摘(胃肠病学分册)2005,0,11:4
14参与式管理解决冲突:遥感和GIS用作瑞典北部驯鹿业土地利用需求信息交流的工具显示文摘在解决复杂的土地管理问题时,对短缺或者有争执的资源进行地理评估有助于不同利益相关者之间沟通认识和增进理解。本文中,我们说明如何使用遥感和GIS收集和汇总瑞典北部驯鹿放牧者和其他土地使用者(林业、采矿业、旅游业等等)的土地使用活动及使用模式的信息。该项目主要基于最终的土地使用者,即驯鹿放牧者们所做的工作,体现了面向土地使用者的新的努力。发展驯鹿业的土地利用规划的基础有以下几个方面:收集并数字化传统的驯鹿栖息地生态学和景观信息;将这些信息与来自野外调查及基于人造卫星观测的植被分类结果整合;绘制其他土地使用者的活动情况图。最终的土地利用规划提供的信息有利于驯鹿放牧者与其他利益相关者之间的磋商,并有助于驯鹿管理实施。该项目可作为一种大众参与和计划编制的模式,从而使本土信息和先进的遥感技术融入一个交互式的过程中。Per Sandstrm Tina Granqvist Pahlén Lars Edenius Hans Tφmmervik Olle Hagner Leif Hemberg Hkan Olsson Karin Baer Thomas Stenlund Lars Gran Brandt Mikael Egberth 周立志 程利群 2003AMBIO-人类环境杂志2003,32,8:4
15阵发性心房颤动患者心房复极离散度的研究显示文摘目的 通过记录阵发性心房颤动 (房颤 )患者心房单相动作电位 (MAP) ,分析心房复极离散度与房颤发生的关系。方法 特发性阵发性房颤患者与无自发房颤病史的阵发性室上性心动过速患者各 1 5例 ,均接受心内电生理检查和 /或导管射频消融治疗。两根 MAP电极于右心房共取 4~ 1 0个不同部位进行同步的窦性心律基础刺激 (S1)及期前刺激 S2 时的 MAP记录。测量、计算心房复极离散度(RTd)及动作电位时限和局部冲动时间的离散度 (APDd、ATd)。 结果 窦性心律时房颤组最大 RTd显著大于对照组 (1 2 3 .69± 54.67) ms比 (64 .2 5± 2 3 .2 9) ms,(P<0 .0 1 )。其差异主要来源于 APDd(1 1 5.0 0± 4 6.90 ) ms比 (57.56± 3 3 .57) ms,(P<0 .0 1 ) ,ATd差异无显著性。随 S1、S2 的加入 ,各组局部激动时间和离散度逐渐增大 ,而动作电位时限逐渐缩短 ,且房颤组的这种改变程度显著大于对照组。在S1时无房颤发生 ,加入期前刺激时 ,大多数房颤组患者均多次诱发出短阵房颤。其诱发率及次数均显著高于对照组。 结论 研究结果表明 ,MAP记录技术是临床观察、分析心房复极离散度及其在阵发性房颤中的作用的较佳方法。心房复极离散度的增加是阵发性房颤发生的重要因素。李真 eva hertervig 袁世文 杨延宗 林治湖 olsson sb 1999中华心律失常学杂志1999,3,4:4
16生产体系对肉产品(主要是猪肉)品质的影响显示文摘肉产品的技术、营养和感官品质在屠宰前后可能会受到多种交互作用因素的影响。从文献来看,以创造猪肉可持续生产体系为目标的各种变革,通常对肉的最终pH值没有影响或影响较小。一些研究表明,可持续生产体系降低了猪肉的持水能力。与常规饲养体系相比,户外生产被认为更能增加猪肉的剪切力值。肉色的影响因素很多,这些因素可能导致猪肉颜色更暗、色素含量增加,或猪肉颜色更浅淡、结构有所变化。在使用含有多不饱和脂肪酸饲料的生产体系中,肉产品所含类脂的不饱和性更强,肉产品的营养价值更高。一句话,必须考虑各因素间的组合效应如:饲养、生产体系、遗传型、性别和宰前处理等对肉品质量的影响。Viktoria Olsson Jana Pickova 张金环(译) 许中旗(校) 2005AMBIO-人类环境杂志2005,34,4:4
17大堡礁和大峡谷世界遗产区的适应性管理显示文摘关于人类和环境相互关系的传统观念正在迅速改变。那种认为人类与自然是相互隔离的,自然资源是取之不尽用之不竭的,而且认为世界是稳定的、可以预测的并且是平衡的旧观点已经过时了。在动态的社会-生态景观中强调学习和灵活性管理为基础的适应性方法的新的理念框架已经迅速初现端倪。我们以两个典型的世界遗产地区(大堡礁和大峡谷)为案例来研究如何在自然资源管理中通过改善科学和社会两个方面的结合来指导多尺度管理系统的变革从而应对和处理人类越来越占据主导的世界中出现的不确定性、风险和变化。Terence P.Hughes Lance H.Gunderson Carl Folke Andrew H.Baird David Bellwood Fikret Berkes Beatrice Crona Ariella Helfgott Heather Leslie Jon Norberg Magnus Nystrm Per Olsson Henrik sterblom Marten Scheffer Heidi Schuttenberg Robert S.Steneck Maria Teng Max Troell Brian Walker James Wilson Boris Worm 丁莉 2007AMBIO-人类环境杂志2007,36,B11:4
18Maintenance and Condition-Based Maintenance显示文摘The evolution of maintenance management is briefly introduced in this paper, from corrective maintenance to preventive maintenance. First, a range of condition monitoring and fault diagnosis techniques developed in different industries are surveyed; Second, many methods of condition monitoring are presented; Third, mathematical methods used in condition monitoring are given; Then the merits and shortcomings are discussed.Efficient maintenance policies are of fundamental importance in system engineering because of their fallbacks into the safety and economics of plant operation. Applying condition-based maintenance to a system can reduce the cost and extend the availability of facilities. With the advent of personal computers as fast and cost effective machines for data acquisition and processing of multiple signals some shortcomings mentioned in condition monitoring could be solved or reduced to some extent. These PCs can be a solution as a condition monitoring based maintenance system.DING Jin-hua WANG Xue-Jun ZHOU Rong LIN Min Olsson Erland 2005International Journal of Plant Engineering and Management2005,10,3:4
19Lipids, Apolipoproteins, and Their Ratios in Relation to Cardiovascular Events With Statin Treatment显示文摘John J.P. Kastelein Wim A. van der Steeg Ingar Holme Michael Gaffney Nilo B. Cater Philip Barter Prakash Deedwania Anders G. Olsson S Matthijs Boekholdt David A. Demicco Michael Szarek John C. LaRosa Terje R. Pedersen Scott M. Grundy 2008Circulation2008,,23:3
20心房颤动——当今面临的挑战显示文摘在过去数年里,临床和科撞方面对心房颤动(房颤)的关注明显增加,有关这一论题的出版物数量迅速、稳定的增长就是证明。虽然已有一些新方法治疗遮一心律失常一但大多数房颤患者仍然不得不忍受这一心律失常,包括其不良后果和症状,房颤无疑是虽迫切需要有更好治疗方法的一种心律失常。为了达到这一目的,就需要更深刻地认识房颤的机制.以便开发直接影响这一基础病理生理机制的治疗措施。Olsson SB Hansson A Hedin E Holm M Ingemansson M Johansson R Meurling C Pehrson S Roijer A Yuan S 方丕华 1997中华心律失常学杂志1997,1,1:3
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