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| 1 | Efficacy of neoadjuvant therapy and surgical rescue for locally advanced hepatoblastomas:10 year single-center experience and literature review显示文摘AIM:To report our experience with long-term outcomes after multimodal management therapy.METHODS:An observational retrospective study was performed containing seven patients with hepatoblastoma(Hbl)treated in our institution,a tertiary referral center,from 2003 to 2011.Demographic,preoperative,surgical,and outcome variables were collected.A survival analysis and a review of the current literature related to combination neoadjuvant chemotherapy and surgical resection on Hbl were performed.RESULTS:The median age at surgery was 14.4 mo,with a male to female ratio of 4:3.Pretext staging at diagnosis was as follows:stageⅠ,4 cases;stageⅡ,2 patients;and stageⅢ,1 case.Mean pretreatment tumor volume was 735 cm3.Five out of seven patients received neoadjuvant chemotherapy according to SIOPEL-3 or SIOPEL-6 protocols.Tumor volume and alphafetoprotein levels significantly dropped after neoadjuvant therapy.Surgical procedures performed included hemihepatectomies,segmentectomies and atypical resection.All patients received chemotherapy after surgery.Median postoperative hospital stay was 8 d.All patients were alive and disease-free after a median follow-up period of 23 mo.With regards to the literature review,seventeen articles were found that were related to our search.CONCLUSION:Our series shows how multimodal management of Hbl,exhaustive control and a meticulous surgical approach leads to almost 100%complete resection with optimal postoperative results. | Dolores Ayllon Teran Oscar Gómez Beltran Rubén Ciria Bru Elena Mateos González María José Pea Rosa Antonio Luque Molina Pedro López Cillero Javier Briceo Delgado | 2014 | World Journal of Gastroenterology2014,20,29: | 12 |
| 2 | Applications of finite element simulation in orthopedic and trauma surgery显示文摘Research in different areas of orthopedic and trauma surgery requires a methodology that allows both a more economic approach and the ability to reproduce different situations in an easy way. Simulation models have been introduced recently in bioengineering and could become an essential tool in the study of any physiological unity, regardless of its complexity. The main problem in modeling with finite elements simulation is to achieve an accurate reproduction of the anatomy and a perfect correlation of the different structures, in any region of the human body. Authors have developed a mixed technique, joining the use of a three-dimensional laser scanner Roland Picza captured together with computed tomography(CT) and 3D CT images, to achieve a perfect reproduction of the anatomy. Finite element(FE) simulation lets us know the biomechanical changes that take place after hipprostheses or osteosynthesis implantation and biological responses of bone to biomechanical changes. The simulation models are able to predict changes in bone stress distribution around the implant, so allowing preventing future pathologies. The development of a FE model of lumbar spine is another interesting application of the simulation. The model allows research on the lumbar spine, not only in physiological conditions but also simulating different load conditions, to assess the impact on biomechanics. Different degrees of disc degeneration can also be simulated to determine the impact on adjacent anatomical elements. Finally, FE models may be useful to test different fixation systems, i.e., pedicular screws, interbody devices or rigid fixations compared with the dynamic ones. We have also developed models of lumbar spine and hip joint to predict the occurrence of osteoporotic fractures, based on densitometric determinations and specific biomechanical models, including approaches from damage and fracture mechanics. FE simulations also allow us to predict the behavior of orthopedic splints applied to the correction of deformities, providing the recovering force-displacement and angle-moment curves that characterize the mechanical behavior of the splint in the overall range of movement. | Antonio Herrera Elena Ibarz José Cego?ino Antonio Lobo-Escolar Sergio Puértolas Enrique López Jesús Mateo Luis Gracia | 2012 | World Journal of Orthopedics2012,3,4: | 8 |
| 3 | High prevalence of viable Mycobacterium avium subspecies paratuberculosis in Crohn's disease显示文摘AIM:To examine the detection rate of viable Mycobacterium avium subspecies paratuberculosis(MAP) in patients with inflammatory bowel disease [Crohn's disease(CD) and ulcerative colitis(UC)].METHODS:Thirty patients with CD(15 with at least one NOD2/CARD15 mutation),29 with UC,and 10 with no inflammatory bowel disease(IBD).were tested for MAP by polymerase chain reaction(specific IS900 fragment) and blood culture.RESULTS:MAP DNA was detected in all original blood samples and 8-wk blood cultures(CD,UC and non-IBD).Positive MAP DNA status was confirmed by dot blot assays.All 69 cultures were negative by acid-fast Ziehl-Neelsen staining.Viable MAP,in spheroplast form,was isolated from the 18-mo blood cultures of all 30 CD patients,one UC patient,and none of the non-IBD controls.No association was found between positive MAP cultures and use of immunosuppressive drugs or CDassociated single nucleotide polymorphisms.CONCLUSION:MAP is widely present in our area and MAP DNA can be recovered from the blood of CD,UC and non-IBD patients.However,MAP spheroplasts were only found in CD patients. | Juan L Mendoza Amparo San-Pedro Esther Culebras Raquel Cíes Carlos Taxonera Raquel Lana Elena Urcelay Fernando de la Torre Juan J Picazo Manuel Díaz-Rubio | 2010 | World Journal of Gastroenterology2010,16,36: | 5 |
| 4 | Cellular automata model for traffic flow with safe driving conditions显示文摘In this paper, a recently introduced cellular automata(CA) model is used for a statistical analysis of the inner microscopic structure of synchronized traffic flow. The analysis focuses on the formation and dissolution of clusters or platoons of vehicles, as the mechanism that causes the presence of this synchronized traffic state with a high flow. This platoon formation is one of the most interesting phenomena observed in traffic flows and plays an important role both in manual and automated highway systems(AHS). Simulation results, obtained from a single-lane system under periodic boundary conditions indicate that in the density region where the synchronized state is observed, most vehicles travel together in platoons with approximately the same speed and small spatial distances. The examination of velocity variations and individual vehicle gaps shows that the flow corresponding to the synchronized state is stable, safe and highly correlated. Moreover,results indicate that the observed platoon formation in real traffic is reproduced in simulations by the relation between vehicle headway and velocity that is embedded in the dynamics definition of the CA model. | María Elena Lárraga Luis Alvarez-Icaza | 2014 | Chinese Physics B2014,23,5: | 4 |
| 5 | Evaluation of 5 versus 10 granulocyteaphaeresis sessions in steroid-dependent ulcerative colitis: A pilot, prospective, multicenter, randomized study显示文摘瞄准:与活跃类固醇依赖者 ulcerative 在病人与 10 个 granulocyteaphaeresis 会议相比评估 5 的功效。方法:在这名飞行员,未来,多集中使随机化的试用,有中等活跃的类固醇的 20 个病人 -- 依赖 ulcerative 被使随机化到 5 或 10 个 granulocyteaphaeresis 会议。主要目的是在 wk 的临床的宽恕 17。第二等的措施包括了内视镜的宽恕和类固醇消费。结果:九个病人被使随机化到 5 个 granulocyteaphaeresis 会议(组 1 ) 和 11 个病人到 10 个 granulocyteaphaeresis 会议(组 2 ) 。在 wk 17,在在组 2 的组 1 病人和 45.45% 的 37.5% 病人在临床的宽恕。临床的宽恕被内视镜的宽恕在所有情况中伴随。完成宽恕的百分之 86 个病人在 wk 是没有类固醇的 17。每日的类固醇要求在组 2 是显著地更低的。病人的 89% 在一年后续期间留在宽恕。一个严肃的不利事件不与学习治疗有关,被报导。结论:Granulocyteaphaeresis 为类固醇依赖者 ulcerative 的治疗安全、有效。在这张人口,增加 aphaeresis 会议的数字没与更高的宽恕率被联系,但是负担得起重要类固醇圆材效果。 | Elena Ricart Maria Esteve Montserrat Andreu Francesc Casellas David Monfort Miquel Sans Natalia Oudovenko Raúl Lafuente Julián Panés | 2007 | World Journal of Gastroenterology2007,13,15: | 3 |
| 6 | Influence of a nucleotide oligomerization domain 1 (NOD1) polymorphism and NOD2 mutant alleles on Crohn's disease phenotype显示文摘AIM: To examine genetic variation of nucleotide oligomerization domain 1 (NOD1 ) and NOD2 ,their respective influences on Crohn's disease phenotype and gene-gene interactions. METHODS: (ND1+326561 ) NOD1 polymorphism and SNP8,SNP12 and SNP13 of NOD2 were analyzed in 97 patients and 50 controls. NOD2 variants were determined by reaction restriction fragment length polymorphism analysis. NOD1 genotyping and NOD2 variant confirmation were performed by specific amplification and sequencing. RESULTS: The distribution of NOD1 polymorphism in patients was different from controls (P = 0.045) and not altered by existence of NOD2 mutations. In this cohort,30.92% patients and 6% controls carried at least one NOD2 variant (P < 0.001) with R702W being the most frequent variant. Presence of at least one NOD2 mutation was inversely associated with colon involvement (9.09% with colon vs 36.4% with ileal or ileocolonic involvement,P = 0.04) and indicative of risk of penetrating disease (52.63% with penetrating vs 25.64% with non-penetrating or stricturing behavior,P = 0.02). L1007finsC and double NOD2 mutation conferred the highest risk for severity of disease (26.3% with penetrating disease vs 3.8% with non-penetrating or stricturing behavior presented L1007finsC,P = 0.01 and 21.0% with penetrating disease vs 2.5% with non-penentrating or stricturing behavior carried double NOD2 mutation,P = 0.007). Exclusion of patients with NOD2 mutations from phenotype/NOD1 -genotype analysis revealed higher prevalence of 11 genotype in groups of younger age at onset and colonic location. CONCLUSION: This study suggests population differences in the inheritance of risk NOD1 polymorphism and NOD2 mutations. Although no interaction between NOD1 -NOD2 was noticed,a relationship between disease location and Nod-like receptor molecules was established. | Elisabet Cantó Elena Ricart David Busquets David Monfort Esther García-Planella Dolors González Joaquim Balanzó José L Rodríguez-Sánchez Sílvia Vidal | 2007 | World Journal of Gastroenterology2007,13,41: | 2 |
| 7 | Real-Time PCR for Diagnosing Helicobacter pylori Infection in Patients with Upper Gastrointestinal Bleeding: Comparison with Other Classical Diagnostic Methods显示文摘 | Jesús Saez Sofía Belda Miguel Santibá?ez Juan Carlos Rodríguez Javier Sola-Vera Antonio Galiana Montserrat Ruiz-García Alicia Brotons Elena López-Girona Eva Girona Carlos Sillero Gloria Royo | 2012 | Journal of Clinical Microbiology2012,,10: | 2 |
| 8 | Efficiency and spatial equity impacts of high-speed rail extensions in urban areas显示文摘 | Andrés Monzón Emilio Ortega Elena López | 2013 | Cities2013,,: | 2 |
| 9 | Analysis of volatile fruit components by headspace solid-phase microextraction显示文摘 | Elena Ibá?ez Sara López-Sebastián Elena Ramos Javier Tabera Guillermo Reglero | 1998 | Food Chemistry1998,,2: | 2 |
| 10 | Principles of assessment and effective feedback显示文摘The highly competitive offer of medical training programs and schools,globalization and constant mobility of physicians and medical students(MS),and the commitment to society to deliver competent physicians,demands the definition of performance standards.This would allow to make their performances comparable no matter where they studied or which textbook did they used as reference,to have evaluation mechanisms that guarantee mastery of the integral evaluation of the performance.Assessment has been the key in the teaching-learning process as this obtains a formative and summative element,at different moments,from the extent to which the students have acquired knowledge,skills and attitudes.The progress of the learner must be enhanced with effective feedback on their performance and self-direction of the results obtained in each of the mechanisms established.If,traditionally,this has been considered as the accreditation of compliance with a standard,the evaluation also functions in an integral way as a formative process that identifies advances and deficiencies in the training of residents that allows the definition of actions and strategies for improving the operation of the programs.Different assessment mechanisms are associated with the areas of competence domain,some of the most common tools are:theoretical exams,checklists and rubrics,portfolio,projects and challenges.However,the importance of defining standards which are perceived as fair and designed according to the learning objectives remains a priority to guarantee the credibility of the evaluation agencies and institutions.Some strategies to assure credibility include the involvement of expert and trained evaluators,allowing the process to be carried out with transparency and diligence,and the principles employed should be supported by educational research. | Jorge Eugenio Valdez-García Mildred Vanessa López Cabrera Elena Ríos Barrientos | 2017 | Annals of Eye Science2017,,1: | 2 |
| 11 | From gut to kidney: Transporting and metabolizing calcineurin-inhibitors in solid organ transplantation显示文摘 | No?l Knops Elena Levtchenko Bert van den Heuvel Dirk Kuypers | 2013 | International Journal of Pharmaceutics . 2013 (1-2)2013,,1: | 1 |
| 12 | Chemokine receptors intracellular traf? cking 显示文摘 | Elena M B Alberto M Massimo L | 2010 | Pharmacol Therap2010,127,: | 1 |
| 13 | Extracellular polysaccha- rides production by Arthrobacter viscosus显示文摘 | Elena L Israel R Anzeles S M | 2003 | Journal of Food Engineering2003,60,: | 1 |
| 14 | Estrogen receptor-[alpha] signaling in osteoblast progenitors stimulates cortical bone accrual显示文摘 | Almeida Maria Iyer Srividhya Martin-Millan Marta Bartell Shoshana M Han Li Ambrogini Elena Onal Melda Xiong Jinhu Weinstein Robert S Jilka Robert L O’Brien Charles A Manolagas Stavros C | 2013 | Journal of Clinical Investigation2013,,1: | 1 |
| 15 | Extracellular polysaccharides production by A rthrobacter viscosus显示文摘 | Elena L Israel R Anzeles S M | 2003 | Journal of Food Engineering2003,60,: | 1 |
| 16 | Diabetes Promotes Cardiac Stem Cell Aging and Heart Failure, Which Are Prevented by Deletion of the p66shc Gene显示文摘 | Marcello Rota Nicole LeCapitaine Toru Hosoda Alessandro Boni Antonella De Angelis Maria Elena Padin-Iruegas Grazia Esposito Serena Vitale Konrad Urbanek Claudia Casarsa Marco Giorgio Thomas F. Lüscher Pier Giuseppe Pelicci Piero Anversa Annarosa Leri Jan | 2006 | Circulation Research2006,,1: | 1 |
| 17 | Ly-6Chi monocytes dominate hypercholesterolemia-associated monocytosis and give rise to macrophages in atheromata 显示文摘 | Filip S Peter L Elena A | 2007 | J Clin Invest2007,117,1: | 1 |
| 18 | Vanadium peroxocomplexes as oxidation catalysts of sulfur organic compounds by hydrogen peroxide in bi-phase systems 显示文摘 | Aleander V A Elena V F Andrey Z L | 2003 | Catalysis Today2003,78,1234: | 1 |
| 19 | Transfer zones and fault reactivation in inverted rift basins:insights from physical modelling显示文摘 | Elena K A Harris L B Poulin J | 2007 | Tectonophysics2007,441,14: | 1 |
| 20 | Immunoreactivity of hen egg allergens:Influence on in vitro gastrointestinal digestion of the presence of other egg white proteins and of egg yolk显示文摘 | Gustavo M Rosina L F Elena M | 2013 | Food Chemistry2013,136,: | 1 |