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| 1 | 植物光合作用叶肉导度及主要限制因素研究进展显示文摘叶肉导度(g_m)被用来衡量CO_2从植物叶片气孔下腔到叶绿体羧化位点的传输效率,其主要受解剖结构和生化因素的调控。近年来,g_m的研究在光合作用领域受到普遍关注;光合速率的限制因素已不再简单地划分为气孔限制和非气孔限制,而需要从气孔限制、叶肉限制和羧化限制3个限制因素开展研究工作。该文分析了植物细胞壁、细胞膜、细胞质、叶绿体膜和叶绿体基质对g_m的调控机制,指出细胞壁厚度以及面向细胞间隙的叶绿体面积(S_c)是影响g_m的重要结构因素。阐述了水孔蛋白和碳酸酐酶参与的生化过程对g_m的调控机制。同时,对外界环境因素,如温度、光强、干旱、氮等对g_m的调控机制进行了总结。在此基础上,探讨了g_m与水力导度的耦合关系。最后对g_m研究中的科学问题进行了展望。 | 韩吉梅 张旺锋 熊栋梁 Jaume FLEXAS 张亚黎 | 2017 | 植物生态学报2017,41,8: | 26 |
| 2 | Effect of transjugular intrahepatic portosystemic shunt on pulmonary gas exchange in patients with portal hypertension and hepatopulmonary syndrome显示文摘AIM: To assess the impact of transjugular intrahepatic portosystemic shunt (TIPS) on pulmonary gas exchange and to evaluate the use of TIPS for the treatment of hepatopulmonary syndrome (HPS).METHODS: Seven patients, three of them with advanced HPS, in whom detailed pulmonary function tests were performed before and after TIPS placementat the University of Alabama Hospital and at the Hospital Clinic, Barcelona, were considered.RESULTS: TIPS patency was confirmed by hemodynamic evaluation. No changes in arterial blood gases were observed in the overall subset of patients. Transient arterial oxygenation improvement was observed in only one HPS patient, early after TIPS, but this was not sustained 4 mo later.CONCLUSION: TIPS neither improved nor worsened pulmonary gas exchange in patients with portal hypertension. This data does not support the use of TIPS as a specific treatment for HPS. However, it does reinforce the view that TIPS can be safely performed for the treatment of other complications of portal hypertension in patients with HPS. | Graciela Martínez-Pallí Britt B Drake Joan-Carles García-Pagán Joan-Albert Barberà Miguel R Arguedas Robert Rodriguez-Roisin Jaume Bosch Michael B Fallon | 2005 | World Journal of Gastroenterology2005,11,43: | 11 |
| 3 | Diagnosis and management of pericardial effusion显示文摘Pericardial effusion is a common finding in everyday clinical practice.The first challenge to the clinician is to try to establish an etiologic diagnosis.Sometimes,the pericardial effusion can be easily related to a known underlying disease,such as acute myocardial infarction, cardiac surgery,end-stage renal disease or widespread metastatic neoplasm.When no obvious cause is apparent,some clinical findings can be useful to establish a diagnosis of probability.The presence of acute inflammatory signs(chest pain,fever,pericardial friction rub) is predictive for acute idiopathic pericarditis irrespective of the size of the effusion or the presence or absence of tamponade.Severe effusion with absence of inflammatory signs and absence of tamponade is predictive for chronic idiopathic pericardial effusion,and tamponade without inflammatory signs for neoplastic pericardial effusion.Epidemiologic considerations are very important,as in developed countries acute idiopathic pericarditis and idiopathic pericardial effusion are the most common etiologies,but in some underdeveloped geographic areas tuberculous pericarditis is the leading cause of pericardial effusion.The second point is the evaluation of the hemodynamic compromise caused by pericardial fluid.Cardiac tamponade is not an'all or none'phenomenon,but a syndrome with a continuum of severity ranging from an asymptomatic elevationof intrapericardial pressure detectable only through hemodynamic methods to a clinical tamponade recognized by the presence of dyspnea,tachycardia,jugular venous distension,pulsus paradoxus and in the more severe cases arterial hypotension and shock.In the middle,echocardiographic tamponade is recognized by the presence of cardiac chamber collapses and characteristic alterations in respiratory variations of mitral and tricuspid flow.Medical treatment of pericardial effusion is mainly dictated by the presence of inflammatory signs and by the underlying disease if present.Pericardial drainage is mandatory when clinical tamponade is present.In the absence of clinical tamponade,examination of the pericardial fluid is indicated when there is a clinical suspicion of purulent pericarditis and in patients with underlying neoplasia.Patients with chronic massive idiopathic pericardial effusion should also be submitted to pericardial drainage because of the risk of developing unexpected tamponade.The selection of the pericardial drainage procedure depends on the etiology of the effusion.Simple pericardiocentesis is usually sufficient in patients with acute idiopathic or viral pericarditis.Purulent pericarditis should be drained surgically,usually through subxiphoid pericardiotomy. Neoplastic pericardial effusion constitutes a more difficult challenge because reaccumulation of pericardial fluid is a concern.The therapeutic possibilities include extended indwelling pericardial catheter,percutaneous pericardiostomy and intrapericardial instillation of antineoplastic and sclerosing agents.Massive chronic idiopathic pericardial effusions do not respond to medical treatment and tend to recur after pericardiocentesis, so wide anterior pericardiectomy is finally necessary in many cases. | Jaume Sagristà-Sauleda Axel Sarrias Mercé Jordi Soler-Soler | 2011 | World Journal of Cardiology2011,3,5: | 10 |
| 4 | Biodegradable stents in gastrointestinal endoscopy显示文摘Biodegradable stents(BDSs)are an attractive option to avoid ongoing dilation or surgery in patients with benign stenoses of the small and large intestines.The experience with the currently the only BDS for endoscopic placement,made of Poly-dioxanone,have shown promising results.However some aspects should be improved as are the fact that BDSs lose their radial force over time due to the degradable material,and that can cause stent-induced mucosal or parenchymal injury.This complication rate and modest clinical efficacy has to be carefully considered in individual patients prior to placement of BDSs.Otherwise,the price of these stents therefore it is nowadays an important limitation. | Vicente Lorenzo-Zú?iga Vicente Moreno-de-Vega Ingrid Marín Jaume Boix | 2014 | World Journal of Gastroenterology2014,20,9: | 10 |
| 5 | Prognostic factors and time-related changes influence results of colorectal liver metastases surgical treatment:A single-center analysis显示文摘AIM:To analyze the prognostic factors involved in survival and cancer recurrence in patients undergoing surgical treatment for colorectal liver metastases(CLM) and to describe the effects of time-related changes on survival and recurrence in these patients.METHODS:From January 1994 to January 2006,236 patients with CLM underwent surgery with the aim of performing curative resection of neoplastic disease at our institution and 189(80%) of these patients underwent resection of CLM with curative intention.Preoperative,intraoperative and postoperative data,including primary tumor and CLM pathology results,were retrospectively reviewed.Patients were divided into two time periods:a first period from January 1994 to January 2000(n = 93),and a second period from February 2000 to January 2006(n = 143).RESULTS:Global survival at 1,3 and 5 years in patients undergoing hepatic resection was 91%,54% and 47%,respectively.Patients with preoperative extrahepatic disease,carcinoembryonic antigen(CEA) levels over 20 ng/dL,more than four nodules or extrahepatic invasion at pathological analysis had worse survival.Tumor recurrence rate at 1 year was 48.3%,being more frequent in patients with preoperative and pathological extrahepatic disease and CEA levels over 20 ng/dL.Although patients in the second time period had more adverse prognostic factors,no differences in overall survival and recurrence were observed between the two periods.CONCLUSION:Despite advances in surgical technique and better adjuvant treatments and preoperative imaging,careful patient staging and selection is crucial to continue offering a chance of cure to patients with CLM. | Josep Martí María Marta Modolo Josep Fuster Jaume Comas Rebeca Cosa Joana Ferrer Victor Molina Juan Romero Constantino Fondevila Ramón Charco Juan Carlos García-Valdecasas | 2009 | World Journal of Gastroenterology2009,15,21: | 9 |
| 6 | POLYNOMIAL INVERSE INTEGRATING FACTORS显示文摘Let (P, Q) be a C1 vector field defined in an open subset U IR2. We call inverse integrating factor a C1 solution V(x, y) of the equation . In previous works it has been shown that this function plays an important role in the problem of the center and in the determination of limit cycles. In this paper we obtain necessary conditions for a polynomial vector field (P, Q) to have a polynomial inverse integrating factor. | J.Chavarriga, H.Giacomini & J.Gine (Departament de Matematica, Universitat de Lleida. Av. Jaume Ⅱ, 69, 25001 Lleida,Spain Laboratoire de Mathematiques et Physique Theorique C.N.R.S. UPRES A6083. Faculte des Sciences et Techniques. Universite de Tours. P | 2000 | Annals of Differential Equations2000,16,4: | 8 |
| 7 | Conventional digital cameras as a tool for assessing leaf area index and biomass for cereal breeding显示文摘Affordable and easy-to-use methods for assessing biomass and leaf area index(LAI) would be of interest in most breeding programs. Here, we describe the evaluation of a protocol for photographic sampling and image analysis aimed at providing low-labor yet robust indicators of biomass and LAI. In this trial, two genotypes of triticale, two of bread wheat, and four of tritordeum were studied. At six dates during the growing cycle, biomass and LAI were measured destructively, and digital photography was taken on the same dates. Several vegetation indices were calculated from each image. The results showed that repeatable and consistent values of the indices were obtained in consecutive photographic samplings on the same plots. The photographic indices were highly correlated with the destructive measurements, though the magnitude of the correlation was lower after anthesis. This work shows that photographic assess-ment of biomass and LAI can be fast, affordable, have good repeatability, and can be used under bright and overcast skies. A practical vegetation index derived from pictures is the fraction of green pixels over the total pixels of the image, and as it shows good correlations with all biomass variables, is the most robust to lighting conditions and has easy interpretation. | Jaume Casadesús Dolors Villegas | 2014 | Journal of Integrative Plant Biology2014,56,1: | 7 |
| 8 | Local recurrence of a parosteal osteosarcoma 21 years after incomplete resection显示文摘Parosteal osteosarcoma (POS) is the most common form of surface osteosarcoma. Its symptoms are insidious and its duration prior to diagnosis is considerably longer than that of other types of osteosarcoma. We report a case of POS with a growing mass but no evidence of metastasis. This tumor, which was diagnosed as calcified hematoma with benign characteristics, was incompletely resected in our hospital 21 years before the diagnosis of recurrence. The patient underwent a wide en bloc resection in our hospital and was free of symptoms, with no signs of tumor recurrence or metastasis during a 53-month follow-up. | Andrés Combalia Ernesto Muoz-Mahamud Antonio Palacín Jaume Pomés Vicente López | 2011 | Chinese Journal of Cancer2011,30,12: | 5 |
| 9 | Functional aspects on the pathophysiology of portal hypertension in cirrhosis显示文摘 | Juan-Carlos García-Pagán Jorge Gracia-Sancho Jaume Bosch | 2012 | Journal of Hepatology2012,,2: | 5 |
| 10 | Radiation dose to patients during endoscopic retrograde cholangiopancreatography显示文摘Endoscopic retrograde cholangiopancreatography (ERCP) is an important tool for the diagnosis and treatment of the hepatobiliary system. The use of fluoroscopy to aid ERCP places both the patient and the endoscopy staff at risk of radiation-induced injury. Radiation dose to patients during ERCP depends on many factors, and the endoscopist cannot control some variables, such as patient size, procedure type, or fluoroscopic equipment used. Previous reports have demonstrated a linear relationship between radiation dose and fluoroscopy duration. When fluoroscopy is used to assist ERCP, the shortest fluoroscopy time possible is recommended. Pulsed fluoroscopy and monitoring the length of fluoroscopy have been suggested for an overall reduction in both radiation exposure and fluoroscopy times. Fluoroscopy time is shorter when ERCP is performed by an endoscopist who has many years experience of performing ERCP and carried out a large number of ERCPs in the preceding year. In general, radiation exposure is greater during therapeutic ERCP than during diagnostic ERCP. Factors associated with prolonged fluoroscopy have been delineated recently, but these have not been validated. | Jaume Boix Vicente Lorenzo-Zúiga | 2011 | World Journal of Gastrointestinal Endoscopy2011,3,7: | 5 |
| 11 | Exploratory study on microRNA profiles from plasma-derived extracellular vesicles in Alzheimer’s disease and dementia with Lewy bodies显示文摘Background:Because of the increasing life expectancy in our society,aging-related neurodegenerative disorders are one of the main issues in global health.Most of these diseases are characterized by the deposition of misfolded proteins and a progressive cognitive decline.Among these diseases,Alzheimer’s disease(AD)and dementia with Lewy bodies(DLB)are the most common types of degenerative dementia.Although both show specific features,an important neuropathological and clinical overlap between them hampers their correct diagnosis.In this work,we identified molecular biomarkers aiming to improve the misdiagnosis between both diseases.Methods:Plasma extracellular vesicles(EVs)-from DLB,AD and healthy controls-were isolated using size-exclusion chromatography(SEC)and characterized by flow cytometry,Nanoparticle Tracking Analysis(NTA)and cryo-electron microscopy.Next Generation Sequencing(NGS)and related bibliographic search was performed and a selected group of EV-associated microRNAs(miRNAs)was analysed by qPCR.Results:Results uncovered two miRNAs(hsa-miR-451a and hsa-miR-21-5p)significantly down-regulated in AD samples respect to DLB patients,and a set of four miRNAs(hsa-miR-23a-3p,hsa-miR-126-3p,hsa-let-7i-5p,and hsamiR-151a-3p)significantly decreased in AD respect to controls.The two miRNAs showing decreased expression in AD in comparison to DLB provided area under the curve(AUC)values of 0.9 in ROC curve analysis,thus suggesting their possible use as biomarkers to discriminate between both diseases.Target gene analysis of these miRNAs using prediction online tools showed accumulation of phosphorylation enzymes,presence of proteasome-related proteins and genes involved in cell death among others.Conclusion:Our data suggest that plasma-EV associated miRNAs may reflect a differential profile for a given dementia-related disorder which,once validated in larger cohorts of patients,could help to improve the differential diagnosis of DLB versus AD. | Ana Gámez-Valero Jaume Campdelacreu Dolores Vilas Lourdes Ispierto Ramón Reñé RamiroÁlvarez MPilar Armengol Francesc E.Borràs Katrin Beyer | 2019 | Translational Neurodegeneration2019,8,1: | 4 |
| 12 | INTEGRABILITY VIA INVARIANT ALGEBRAIC CURVES FOR PLANAR POLYNOMIALDIFFERENTIAL SYSTEMS显示文摘We present an introduction to the Darboux integrability theory of planar complex and real polynomial differential systems containing some improvements to the classical theory. | Colin Christopher (School of Mathematics and Statistics, University of Plymouth, Plymouth, Devon PL4 SAA, UNITED KINGDOM) Jaume Llibre (Dopartament de Matematiques, Universitat Autonoma de Barcelona, 08193-Bellaterra, Barcelona, SPAIN) | 2000 | Annals of Differential Equations2000,16,1: | 4 |
| 13 | Determination of drug,excipients and coating distribution in pharmaceutical tablets using NIR-CI显示文摘The growing interest of the pharmaceutical industry in Near Infrared-Chemical Imaging (NIR-CI) is a result of its high usefulness for quality control analyses of drugs throughout their production process (particularly of its non-destructive nature and expeditious data acquisition).In this work,the concentration and distribution of the major and minor components of pharmaceutical tablets are determined and the spatial distribution from the internal and external sides has been obtained.In addition,the same NIR-CI allowed the coating thickness and its surface distribution to be quantified.Images were processed to extract the target data and calibration models constructed using the Partial Least Squares (PLS) algorithms.The concentrations of Active Pharmaceutical Ingredient (API) and excipients obtained for uncoated cores were essentially identical to the nominal values of the pharmaceutical formulation.But the predictive ability of the calibration models applied to the coated tablets decreased as the coating thickness increased. | Anna Palou Jordi Cruz Marcelo Blanco Jaume Tomàs Joaquín de los Ríos Manel Alcalà | 2012 | Journal of Pharmaceutical Analysis2012,2,2: | 4 |
| 14 | Lanreotide in Metastatic Enteropancreatic Neuroendocrine Tumors显示文摘 | Martyn E. Caplin Marianne Pavel Jaros?aw B. ?wik?a Alexandria T. Phan Markus Raderer Eva Sedlá?ková Guillaume Cadiot Edward M. Wolin Jaume Capdevila Lucy Wall Guido Rindi Alison Langley Séverine Martinez Jo?lle Blumberg Philippe Ruszniewski | 2014 | The New England Journal of Medicine2014,,: | 3 |
| 15 | Efficacy and Safety of Anticoagulation on Patients With Cirrhosis and Portal Vein Thrombosis显示文摘 | María Gabriela Delgado Susana Seijo Ismael Yepes Linette Achécar Maria Vega Catalina ángeles García–Criado Juan G. Abraldes Joaquín de la Pe?a Rafael Ba?ares Agustín Albillos Jaume Bosch Juan Carlos García–Pagán | 2012 | Clinical Gastroenterology and Hepatology2012,,7: | 3 |
| 16 | 国际卒中遗传学联盟的推荐意见(第1部分):标准化表型数据收集显示文摘与几乎所有复杂疾病一样,卒中的患病风险和临床转归也是多基因作用的[1]。探索相关基因突变有望为新型个体化治疗方法奠定基础,从而显著减少卒中对全球健康造成的毁灭性影响。为了达到足够的统计学效能以确认多个风险性等位基因,需要很大的样本量。尽管卒中是全世界范围内第二大致死病因和成年人致残的主要原因[2],但没有任何一家研究机构能独立收集到足够的样本。在认识到这一挑战之后,来自世界各地的卒中研究者们于2007年成立了国际卒中遗传学联盟( International Stroke Genetics Consortium, ISGC; http://www. strokegenetics.org),其使命是通过研究在全球多个研究机构入组的患者来识别影响卒中患病风险、临床预后和治疗效果的遗传学因素。尽管先前已取得了一些成功[3-5],仍有大量工作有待进行,这不仅是为了发现风险性等位基因从而达到卒中个体化医疗的最终目标,更是为了开发综合性卒中风险评估手段以及得到足以改变临床实践的结果[6]。根据糖尿病和冠状动脉疾病等其他复杂疾病的研究进展,为了识别与卒中相关的所有基因突变,需要100000~200000个样本。为了达到这个样本量,需要进行更为广泛的协作。 | Jennifer J. Majersik John W.Cole Jonathan Golledge Natalia S. Rost Yu-Feng Yvonne Chan M. Edip Gurol Ame G. Lindgren Daniel Woo Israel Fernandez-Cadenas Donna T. Chen Vincent Thijs Bradford B. Worrall Ayeesha Kamal Paul Bentley Joanna M. Wardlaw Ynte M. Ruigrok Thomas W.K Battey Reinhold Schmidt Joan Montaner Anne-Katrin Giese Jaume Roquer Jordi Jimenez-Conde Chaeyoung Lee Hakan Ay Juan Jose Martin 李海峰 岳耀先 徐军 | 2015 | 国际脑血管病杂志2015,23,9: | 3 |
| 17 | Improved clinical outcome using polytetrafluoroethylene-coated stents for tips: Results of a randomized study显示文摘 | Christophe Bureau Juan carlos Garcia-Pagan Philippe Otal Gilles Pomier-Layrargues Valérie Chabbert Carlos Cortez Pierre Perreault Jean marie Péron Juan G. Abraldes Louis Bouchard José Ignacio Bilbao Jaume Bosch Hervé Rousseau Jean pierre Vinel | 2004 | Gastroenterology2004,,2: | 3 |
| 18 | TIPS for Budd-Chiari Syndrome: Long-Term Results and Prognostics Factors in 124 Patients显示文摘 | Juan Carlos Garcia–Pagán Mathis Heydtmann Sebastian Raffa Aurélie Plessier Sarwa Murad Federica Fabris Giovanni Vizzini Juan Gonzales Abraldes Simon Olliff Antonio Nicolini Angelo Luca Massimo Primignani Harry L.A. Janssen Dominique Valla Elwyn Elias Jaum | 2008 | Gastroenterology2008,,3: | 3 |
| 19 | Cardiac alterations in cirrhosis: reversibility after liver transplantation显示文摘 | Mireia Torregrosa Santi Aguadé Laura Dos Rosa Segura Antonio Gónzalez Artur Evangelista Joan Castell Carlos Margarit Rafael Esteban Jaume Guardia Joan Genescà | 2004 | Journal of Hepatology2004,,1: | 3 |
| 20 | Dyspepsia and Irritable Bowel Syndrome After a Salmonella Gastroenteritis Outbreak: One-Year Follow-up Cohort Study显示文摘 | Fermín Mearin Marc Pérez-Oliveras Antonia Perelló Jaume Vinyet Anabel Iba?ez Jordi Coderch Mónica Perona | 2005 | Gastroenterology2005,,1: | 2 |