|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | 变性梯度凝胶电泳(DGGE)在微生物生态学中的应用显示文摘由于从环境样品中分离和培养细菌的困难 ,分子生物学方法已发展用来描述和鉴定微生物群落。近年来基于 DNA方法的群落分析得到了迅速的发展 ,如 PCR扩增技术 ,克隆文库法 ,荧光原位杂交法 ,限制性酶切片段长度多态性法 ,变性和温度梯度凝胶电泳法。DGGE已广泛用于分析自然环境中细菌、蓝细菌 ,古菌、微微型真核生物、真核生物和病毒群落的生物多样性。这一技术能够提供群落中优势种类信息和同时分析多个样品。具有可重复和容易操作等特点 ,适合于调查种群的时空变化 ,并且可通过对切下的带进行序列分析或与特异性探针杂交分析鉴定群落成员。DGGE分析微生物群落的一般步骤如下 :一是核酸的提取 ,二是 1 6Sr RNA,1 8S r RNA或功能基因如可容性甲烷加单氧酶羟化酶基因 ( mmo X)和氨加单氧酶 α-亚单位基因 ( amo A)片段的扩增 ,三是通过DGGE分析 PCR产物。DGGE使用具有化学变性剂梯度的聚丙烯酰胺凝胶 ,该凝胶能够有区别的解链PCR扩增产物。由 PCR产生的不同的 DNA片段长度相同但核苷酸序列不同。因此不同的双链 DNA片段由于沿着化学梯度的不同解链行为将在凝胶的不同位置上停止迁移 [5] 。 DNA解链行为的不同导致一个凝胶带图案 ,该图案是微生物群落中主要种类的一个轮廓。 DGGE使用所有生物中保守的基因? | 马悦欣 Carola Holmstrm Jeremy Webb Staffan Kjelleberg | 2003 | 生态学报2003，23，8： | 100 |
| 2 | Cellulose Synthases and Synthesis in Arabidopsis显示文摘植物房间墙是由 high-molecular-weight 多糖,蛋白质,和木质素组成的复杂结构。在墙多糖之中,纤维素,结合氢的 -1,4-linked glucan microfibril,为工业应用是主要的忍受负担的墙部件和一位关键先锋。纤维素被大 multi-meric 纤维素 synthase (CesA ) 综合建筑群,在血浆膜沿着外皮的微导管追踪。这些建筑群的唯一的已知的部件是纤维素 synthase 蛋白质。最近的研究识别了试验为 CesAs 的相互作用搭挡并且证明 CesA 建筑群的迁移的模式取决于 phosphorylation 地位。这些进展可以为在不久的将来关于纤维素合成扩展我们的知识成为好平台。另外,我们在 CesA 建筑群的上下文的纤维素链聚合的当前的理解被讨论。 | Anne Endler Staffan Persson | 2011 | Molecular Plant2011，4，2： | 26 |
| 3 | 抑制次同步谐振的TCSC主动阻尼控制显示文摘采用同步电压反转(synchronous voltage reversal,SVR)触发控制的可控串联补偿电容(thristor controlled series compensator,TCSC)本身不会诱发系统的次同步谐振(sub-synchronous resonance SSR),而且因为其在次同步频率范围内固有的感性阻抗特性,一直以来工程中都把TCSC作为一种缓解SSR的有效措施。虽然采用SVR触发的TCSC可缓解系统SSR的压力,但其本身却无法主动抑制SSR,该文提出一种TCSC的附加控制——主动阻尼控制,通过调节TCSC的触发,可使系统在危险振荡模式下向机组提供正值的电气阻尼,从而更好地抑制SSR。时域及频域的仿真也验证了该主动阻尼控制的有效性。 | 周长春 刘前进 Lennart Angquist Staffan Rudin | 2008 | 中国电机工程学报2008，28，10： | 19 |
| 4 | 卵巢浆液性腺癌组织中TK1和Ki-67表达的意义显示文摘目的探讨细胞质胸苷激酶1(cytoplasmic thymidinekinas-1,TK1)、Ki-67在卵巢浆液性腺癌中表达的意义。方法回顾性研究55例经手术治疗的卵巢浆液性腺癌患者的临床病理资料,并运用免疫组化技术观察TK1、Ki-67在卵巢浆液性腺癌中的表达情况及与临床病理参数之间的意义。结果 TK1阳性表达定位于细胞质,阳性率为72.7%。TK1的表达与肿瘤的最大径、复发、pTNM分期、病理分级密切相关(P<0.05)。Ki-67阳性表达定位于细胞核,阳性率为80.0%,Ki-67的表达与肿瘤的复发、pTNM分期、病理分级有关(P<0.05)。Kappa检验显示TK1的表达与卵巢浆液性腺癌复发较一致(k=0.559,P=0.000),且判断复发比Ki-67更为优越。Kaplan-Meier检验显示pTNM分期、肿瘤复发、MDACC分级、Ki-67、TK1表达分别与预后有关(P<0.05)。COX回归多因素分析显示:肿瘤复发是影响卵巢浆液性腺癌患者的独立性预后因素。结论卵巢浆液性腺癌的复发影响患者的预后,TK1对判断卵巢浆液性腺癌是否有复发倾向具有参考价值,且优于Ki-67,初次手术后肿瘤组织免疫组化TK1高表达预示患者存在高复发的风险,提示临床要加强术后的治疗方案,并提高随访频数。 | 刘冲 郭庆 石群立 余波 马恒辉 Staffan Eriksson Ellen He Sven Skog | 2011 | 临床与实验病理学杂志2011，27，12： | 12 |
| 5 | 多环芳烃污染区域氧化多环芳烃的来源、迁移转化和毒性危害显示文摘本文阐明了在对高浓度多环芳烃污染区域进行风险评估和修复过程中,氧化多环芳烃是不容忽视的重要污染物。我们通过对自己的研究成果和公开发表资料的综合分析,发现在这些地方氧化多环芳烃的量较大,但并未受到足够重视。这些氧化多环芳烃是通过多环芳烃转化而来的,滞留时间也较长。许多修复方法会加速多环芳烃的降解,从而导致在环境中的氧化多环芳烃浓度升高。此外,我们发现尽管氧化多环芳烃与通过诱变和致癌等多环芳烃常见的毒害有区别的方式产生毒性,但他们对人类和环境也是有害的。我们还有数据支持以下假说:在环境中,具有极性的氧化多环芳烃比多环芳烃稳定性差,更易通过受污染地区的地表水和地下水扩散。因此在受多环芳烃污染区域,氧化多环芳烃应该纳入监测项目当中,而其它毒性相关成分如带硝基的多环芳烃和氮杂环芳烃等则不必纳入监洲项目当中。因为氧化多环芳烃有可能在多环芳烃发生降解的时候形成,而且它们的环境行为是完全不同的,也很难通过多环芳烃浓度来预测氧化多环芳烃的含量。 | Staffan Lundstedt Paul A.White Christine L.Lemieux Krista D.Lynes Iain B.Lambert Larsberg Peter Haglund Mats Tysklind 王丽平 | 2007 | AMBIO-人类环境杂志2007，36，6： | 11 |
| 6 | Multi-omics analyses of 398 foxtail millet accessions reveal genomic regions associated with domestication,metabolite traits,and antiinflammatory effects显示文摘Foxtail millet(Setaria italica),which was domesticatedfromthewild speciesgreenfoxtail(Setaria viridis),isa richsource of phytonutrientsfor humans.To evaluate how breeding changed themetabolome offoxtail millet grains,we generated and analyzed the datasets encompassing the genomes,transcriptomes,metabolomes,and anti-inflammatory indices from 398 foxtail millet accessions.We identified hundreds of common variants that influence numerous secondary metabolites.We observed tremendous differences in natural variations of the metabolites and their underlying genetic architectures between distinct sub-groups of foxtail millet.Furthermore,we found that the selection of the gene alleles associated with yellow grains led to altered profiles of metabolites such as carotenoids and endogenous phytohormones.Using CRiSPR-mediated genome editing wevalidated the function of PHYTOENE SYNTHASE1(PSY1)gene in affecting milletgrain colorand quality.Interestingly,our in vitro cell inflammation assays showed that 83 metabolites in millet grains have anti-inflammatory effects.Taken together,ourmulti-omics study illustrates how the breeding history of foxtail millet has shaped its metabolite profile.The datasets we generated in this study also provide important resources for further understanding how millet grain quality is affected by different metabolites,laying the foundations for future millet genetic research and metabolome-assisted improvement. | Xukai Li Jianhua Gao Jingyi Song Kai Guo Siyu Hou Xingchun Wang Qiang He Yanyan Zhang Yakun Zhang Yulu Yang Jiaoyan Tang Hailang Wang Staffan Persson Mingquan Huang Lishuai Xu Linlin Zhong Dongqin Li Yongming Liu Hua Wu Xianmin Diao Peng Chen Xiaowen Wang Yuanhuai Han | 2022 | Molecular Plant2022，15，8： | 8 |
| 7 | Sweet sorghum and Miscanthus:Two potential dedicated bioenergy crops in China显示文摘Among the potential non-food energy crops,the sugar-rich C_4 grass sweet sorghum and the biomass-rich Miscanthus are increasingly considered as two leading candidates.Here,we outline the biological traits of these energy crops for largescale production in China.We also review recent progress on understanding of plant cell wall composition and wall polymer features of both plant species from large populations that affect both biomass enzymatic digestibility and ethanol conversion rates under various pretreatment conditions.We finally propose genetic approaches to enhance biomass production,enzymatic digestibility and sugar-ethanol conversion efficiency of the energy crops. | HU Shi-wei WU Lei-ming Staffan Persson PENG Liang-cai FENG Sheng-qiu | 2017 | Journal of Integrative Agriculture2017，16，6： | 6 |
| 8 | 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 | 2005 | AMBIO-人类环境杂志2005，34，4： | 6 |
| 9 | The connection of cytoskeletal network with plasma membrane and the cell wall显示文摘The cell wall provides external support of the plant cells, while the cytoskeletons including the microtubules and the actin filaments constitute an internal framework. The cytoskeletons contribute to the cell wall biosynthesis by spatially and temporarily regulating the transportation and deposition of cell wall components. This tight control is achieved by the dynamic behavior of the cytoskeletons, but also through the tethering of these structures to the plasma membrane. This tethering may also extend beyond the plasma membrane and impact on the cell wall, possibly in the form of a feedback loop. In this review, we discuss the linking components between the cytoskeletons and the plasma membrane, and/or the cell wall. We also discuss the prospective roles of these components in cell wall biosynthesis and modifications, and aim to provide a platform for further studies in this field. | Zengyu Liu Staffan Persson Yi Zhang | 2015 | Journal of Integrative Plant Biology2015，57，4： | 6 |
| 10 | High level of deoxycholic acid in human bile does not promote cholesterol gallstone formation显示文摘AIM: To study whether patients with excess deoxycholic acid (DCA) differ from those with normal percentage of DCA with respect to biliary lipid composition and cholesterol saturation of gallbladder bile.METHODS: Bile was collected during operation through puncturing into the gallbladder from 122 cholesterol gallstone patients and 46 gallstone-free subjects undergoing cholecystectomy. Clinical data, biliary lipids, bile acid composition,presence of crystals and nucleation time were analyzed.RESULTS: A subgroup of gallstone patients displayeda higher proportion of DCA in bile than gallstone free subjects.By choosing a cut-off level of the 90th percentile, a group of 13 gallstone patients with high DCA levels (mean 50percent of total bile acids) and a large group of 109 patients with normal DCA levels (mean 21 percent of total bile acids)were obtained. The mean age of the patients with high DCA levels was higher than that of the group with normal levels (mean age: 62 years vs45 years) and so was the mean BMI (28.3 vs. 24.7). Plasma levels of cholesterol and triglycerides were slightly higher in the DCA excess groups compared with those in the normal DCA group. There was no difference in biliary lipid composition, cholesterol saturation, nucleation time or occurrence of cholesterol crystals in bile between patients with high and normal levels of DCA.CONCLUSION: Gallstone patients with excess DCA were of older age and had higher BMI than patients with normal DCA. The two groups of patients did not differ with respect to biliary lipid composition, cholesterol saturation, nucleation time or occurrence of cholesterol crystals. It is concluded that DCA in bile does not seem to contribute to gallstone formation in cholesterol gallstone patients. | Ulf Gustafsson Staffan Sahlin Curt Einarsson | 2003 | World Journal of Gastroenterology2003，9，7： | 5 |
| 11 | 急性缺血性卒中的机械取栓治疗:ESO、ESMINT、ESNR和EAN共同支持的2014/2015 ESO-卡罗林斯卡卒中更新会议共识声明显示文摘这份卒中后机械取栓治疗共识声明的原始版本于2014年11月16—18日在斯德哥尔摩召开的欧洲卒中组织(European Stroke Organisation, ESO)-卡罗林斯卡卒中更新会议期间得到批准。根据会议安排,在2015年利用新的临床试验数据对该声明进行了更新。2015年2月,在瑞士伯尔尼召开的ESO冬季培训会期间组织了面对面会议对共识声明进行修订,然后通过电子邮件交换意见,最终版本得到各学会的认可。推荐意见与原始版本一致,证据等级更新到2015年2月20日为止,在2015年5月15日获得确认。ESO-卡罗林斯卡卒中更新会议的目的在于总结卒中治疗研究的最新进展并探讨如何将这些最新研究结果应用于临床实践。共识会议选择了一些议题进行讨论,与会者草拟一份共识声明并进行讨论。该声明接受了ESO指南委员会的指导。这份共识声明包括对急性卒中后机械取栓治疗的推荐意见,得到欧洲卒中组织ESO、欧洲神经微创治疗学会(European Society of Minimally Invasive Neurological Therapy, ESMINT)、欧洲神经放射学学会(European Society of Neuroradiology, ESNR)和欧洲神经病学学会(European Academy of Neurology, EAN)的支持。 | Nils Wahlgren Tiago Moreira Patrik Michel Thorsten Steiner Olav Jansen Christophe Cognard Heinrich P Mattle Wim van Zwam Staffan Holmin Turgut Tatlisumak Jesper Petersson Valeria Caso Werner Hacke Mikael Mazighi Marcel Arnold Urs Fischer Istvan Szikora Laurent Pierot Jens Fiehler Jan Gralla Franz Fazekas Kennedy R Lees 高洁 徐格林 | 2016 | 国际脑血管病杂志2016，24，1： | 5 |
| 12 | 生态敏感地区的荒漠蝗虫防治:需要指导原则显示文摘进行大面积荒漠蝗虫的化学防治涉及各种景观区和生态系统,在环境敏感地区或其周边地区,农药喷撒没有严格的限制,作业者往往忽视这些地区的敏感性。人们对荒漠蝗虫控制所带来的环境问题的关注程度与日俱增,因而有必要制定明确的指导性防治原则。本文旨在确定和描绘非洲东北部对杀虫剂污染特别敏感的区域,如保护区、湿地、人口居住区、绿洲,以及候鸟集中分布的地区,这些区域与1986~1998年间实际进行的荒漠蝗虫防治区域相对比。结果表明,环境脆弱地区,特别是湿地,如临时性水域和红树林,以及人类居住区附近都进行过化学防治,而且一定程度上还涉及到保护区和候鸟大量聚集区。 | Staffan Wiktelius Jonas Ard Thord Fransson 周立志 贾伟 | 2003 | AMBIO-人类环境杂志2003，32，7： | 4 |
| 13 | Investigation of CRISPR/Cas9-induced SD1 rice mutants highlights the importance of molecular characterization in plant molecular breeding显示文摘Although Clustered Regularly Interspaced Short Palindromic Repeats(CRISPR)/CRISPR-associated 9(Cas9)system has been widely used for basic research in model plants,its application for applied breeding in crops has faced strong regulatory obstacles,due mainly to a poor understanding of the authentic output of this system,particularly in higher generations.In this study,different from any previous studies,we investigated in detail the molecular characteristics and production performance of CRISPR/Cas9-generated SD1(semi-dwarf 1)mutants from T2 to T4 generations,of which the selection of T1 and T2 was done only by visual phenotyping for semidwarf plants.Our data revealed not only on-and off-target mutations with small or lager indels but also exogenous elements in T2 plants.All indel mutants passed stably to T3 or T4 without additional modifications independent on the presence of Cas9,while some lines displayed unexpected hereditary patterns of Cas9 or some exogenous elements.In addition,effects of various SD1 alleles on rice height and yield differed depending on genetic backgrounds.Taken together,our data showed that the CRISPR/Cas9 system is effective in producing homozygous mutants for functional analysis,but it may be not as precise as expected in rice,and that early and accurate molecular characterization and screening must be carried out for generations before transitioning of the CRISPR/Cas9 system from laboratory to field. | Sukumar Biswas Jiaqi Tian Rong Li Xiaofei Chen Zhijing Luo Mingjiao Chen Xiangxiang Zhao Dabing Zhang Staffan Persson Zheng Yuan Jianxin Shi | 2020 | Journal of Genetics and Genomics2020，47，5： | 4 |
| 14 | Carbon Supply and the Regulation of Cell Wa Synthesis显示文摘 | Jana Verbancic John Edward Lunn Mark Stitt Staffan Persson | 2018 | Molecular Plant2018，11，1： | 4 |
| 15 | 抗P-21激活的磷酸化蛋白激酶5多克隆抗体的制备及其在牙胚细胞研究中的应用显示文摘目的克隆PAK5-N端基因并诱导其表达,进行多克隆抗体制备,为研究其在牙胚细胞中的生物学功能奠定基础。方法根据人全长PAK5cDNA序列,设计引物;利用PCR技术,以PAK5全长cDNA为模板扩增PAK5-N端基因,将扩增产物克隆至pGEX-4T-1载体中,经EcoRI/XhoI双酶切后进行重组质粒鉴定,DNA测序。以硫代半乳糖苷诱导其在大肠杆菌BL21中表达。利用GST融合蛋白纯化系统进行蛋白纯化,通过免疫家兔制备多克隆抗体,并在牙胚细胞中进行了初步研究。结果和结论成功克隆了PAK5-N端基因,在E.coli中表达了PAK5-NT,并纯化了GST融合蛋白,制备了PAK5特异性抗体。Westernblotting表明PAK5在牙胚细胞中过度表达,为其在口腔细胞中的生物学功能研究提供了依据。 | 安政雯 刘宏伟 贾志敏 李照峰 Staffan Strmblad 张宏权 | 2006 | 南方医科大学学报2006，26，6： | 3 |
| 16 | 瑞典隆德大学的专科护士教育与启示显示文摘介绍瑞典隆德大学护理学院专科护士教育的学习周期、学分、学员入学要求、培养目标、课程内容、教学结构、教学形式、考核和质量的评估与反馈等。提出瑞典的专科护士教育对我国专科护士教育在学员入学资格、课程内容的设置、教学模式的转变、教学质量的评估和反馈等方面具有重要的借鉴、指导作用。 | 徐静娟 Ingalill Rahm Hallberg Staffan Karlsson | 2010 | 护理学杂志(综合版)2010，25，4： | 3 |
| 17 | 脑胶质瘤组织中胸腺嘧啶核苷激酶1的表达和意义及其与细胞增殖抗原Ki67表达的关系显示文摘目的研究脑胶质瘤组织中胸腺嘧啶核苷激酶1(TK1)的表达和意义,以及其与细胞增殖抗原Ki67表达的关系。方法 202例脑胶质瘤患者,经病理检查进行脑胶质瘤病理分级及组织类型分型。采用免疫组化染色法检测脑胶质瘤组织中TK1和Ki67的表达。比较不同级别及类型患者脑胶质瘤组织中TK1表达的阳性率;分析TK1与Ki67表达的关系。结果本组患者脑胶质瘤按WHO分级:Ⅰ级12例,Ⅱ级85例,Ⅲ级60例,Ⅳ级45例;组织类型分型:少突胶质细胞瘤28例,星形胶质细胞瘤174例。本组患者TK1阳性119例(58.9%);其中良性组(WHOⅠ级)患者无TK1阳性,低度恶性组(WHOⅡ级)阳性31例(36.5%),高度恶性组(WHOⅢ、Ⅳ级)阳性88例(83.8%);三组间TK1阳性率比较差异均有统计学意义(P<0.05~0.001)。星形胶质细胞瘤及复发患者的TK1阳性率分别显著高于少突胶质细胞瘤和初发的患者(均P<0.05)。TK1与Ki67的表达水平呈正相关(r=0.711,P<0.01)。结论恶性程度高、星形胶质细胞瘤及复发的脑胶质瘤患者瘤组织中TK1的表达增高;提示TK1表达可作为脑胶质瘤病理分级、分型及复发的重要参考指标。TK1与Ki67正相关,提示TK1亦可反映脑胶质瘤细胞的增殖情况。 | 朱海青 宋坤 王娟 张巧全 周金宝 石群立 Staffan Eriksson Ellen He Sven Skog | 2012 | 临床神经病学杂志2012，25，5： | 3 |
| 18 | An Update on Xylan Synthesis显示文摘Plant cell walls are complex structural frameworks that affect cell shape and differentiation,and that protect the plant cell against environmental conditions(Scheller and Ulvskov,2010). | Anett Doering Rahul Lathe Staffan Persson | 2012 | Molecular Plant2012，5，4： | 3 |
| 19 | The Cellulose Synthases Are Cargo of the TPLATE Adaptor Complex显示文摘 | Clara Sanchez-Rodriguez Yanyun Shi Christopher Kesten Dongmei Zhang Gloria Sancho-Andres Alexander Ivakov Edwin R. Lampugnani Kamil Sklodowski Masaru Fujimoto Akihiko Nakano Antony Bacic Ian S. Wallace Takashi Ueda Daniel Van Damme Yihua Zhou Staffan Persson | 2018 | Molecular Plant2018，11，2： | 3 |
| 20 | Factors Associated With Response to Therapy and Outcome of Patients With Primary Biliary Cirrhosis With Features of Autoimmune Hepatitis显示文摘 | Ersan Ozaslan Cumali Efe Alexandra Heurgué–Berlot Taylan Kav Chiara Masi Tugrul Purnak Luigi Muratori Yücel Ustündag Solange Bresson–Hadni Gérard Thiéfin Thomas D. Schiano Staffan Wahlin Paolo Muratori | 2014 | Clinical Gastroenterology and Hepatology2014，，： | 3 |
您所在的机构暂未开通此部分的功能，请联系管理员