检索结果-南通市图书馆

Zinc bioleaching from an iron concentrate using Acidithiobacillus ferrooxidans strain from Hercules Mine of Coahuila,Mexico

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

International Journal of Minerals,Metallurgy and Materials 2011年第5期18卷 523-526页

作者： Diola Marina nunez-Ramirez Aquiles Solis-Soto javierLopez-Miranda javier Lopez-Miranda Benito Pereyra-Alfere Mirtam Rutlaga-Qumones Luis Medina- Torres Hiram Medrano-Roldan Food and Biotechnology Postgraduate Unit Institute of Technology of Durango Durango 34080 Mexico Institute of Biotechnology Autonomous University ofNuevo Le6n Monterrey N.L. 66451 Mexico Department of Chemical Engineering Faculty of Chemistry Autonomous National University of Mexico Mexico City 04510 Mexico

The iron concentrate from Hercules Mine of Coahuila,Mexico,which mainly contained pyrite and pyrrhotite,was treated by the bioleaching process using native strain Acidithiobacillus ferrooxidans （***） to determine the ability of these bacteria on the leaching of *** native bacteria were isolated from the iron concentrate of the *** bioleaching experiments were carried out in shake flasks to analyze the effects of pH values,pulp density,and the ferrous sulfate concentration on the bioleaching *** results obtained by microbial kinetic analyses for the evaluation of some aspects of zinc leaching show that the native bacteria ***,which is enriched with a 9K Silverman medium under the optimum conditions of pH 2.0,20 g/L pulp density,and 40 g/L FeSO4,increases the zinc extraction considerably observed by monitoring during15 d,i.e.,the zinc concentration has a decrease of about 95% in the iron concentrate.

关键词： pyrite pyrrhotite bioleaching zinc

Daptomycin,Methicillin Resistant Staphylococcus hominis Catheter-Related Bacteraemia in a Hemodialysis Patient

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Open Journal of Medical Microbiology 2013年第1期3卷 53-55页

作者： Manuel Macia-Heras javier Donate-Correa Julia Alcoba-Florez Gerardo Pulido-Reyes Ernesto Martin-nunez Joel Martin-Padron Sebastian Mendez-Alvarez Research Unit University Hospital Nuestra Senora de CandelariaSanta Cruz de TenerifeSpain Nephrology Service University Hospital Nuestra Senora de CandelariaSanta Cruz de TenerifeSpain Microbiology Service University Hospital Nuestra Senora de CandelariaSanta Cruz de TenerifeSpain Department of Microbiology and Cell Biology University of La LagunaTenerifeSpain

We report a case of a haemodialysis patient that presented a catheter-related bacteraemia caused by a Coagulase negative Staphylococcus. With the utilization of molecular biology techniques the bacterial isolate recovered from catheter was surprisingly identified as S. hominis by sequencing of the 16S ribosomal gene. The S. hominis isolate, which is not often associated with infections in dialysis patients, was resistant to methicillin, being mecA positive, and to daptomycin. The patient was successfully treated with vancomycin together with the catheter retirement.

关键词： Bacteraemia Catheter Daptomycin Methicillin Staphylococcus hominis

Determinants of percutaneous coronary intervention success in repeat chronic total occlusion procedures following an initial failed attempt

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

World Journal of Cardiology 2017年第4期9卷 355-362页

作者： Cecilia Cuevas Nicola Ryan Alicia Quirós Juan Gustavo Del Angel Nieves Gonzalo Pablo Salinas Pilar Jiménez-Quevedo Luis Nombela-Franco Ivan nunez-Gil Antonio Fernandez-Ortiz Carlos Macaya javier Escaned Cardiovascular Institute Hospital Clinico San Carlos28040 MadridSpain

AIM To investigate the rates and determinants of success of repeat percutaneous coronary intervention(PCI) following an initial failed attempt at recanalising the chronic total occlusions(CTO) *** In 445 consecutive first attempt CTO-PCI procedures in our institution,procedural failure occurred in 149(33.5%). Sixty-four re-PCI procedures were performed in 58 patients(39%) all had a single CTO. Procedural and outcome data in the re-PCI population was entered into the institutional database. A retrospective analysis of clinical,angiographic and procedural data was performed. RESULTS Procedural success was achieved in 41(64%) procedures. Univariate analysis of clinical and angiographic characteristics showed that re-PCI success was associated with intravascular ultrasound(IVUS) guidance(19.5% vs 0%,P = 0.042),while failure was associated with severecalcification(30.4% vs 9.7%,P = 0.047) and a JCTO score > 3(56.5% vs 17.1% P = 0.003). Following multiple regression analysis the degree of lesion complexity(J-CTO score > 3),IVUS use,involvement of an experienced CTO operator and LAD CTO location were significant predictors of successful re-PCI. Overall the complication rate was low,with the only MACCE two periprocedural MI's neither of which required intervention. CONCLUSION Re-PCI substantially increases the overall success rate of CTO revascularization. Predictors of re-PCI success included the use of IVUS,the involvement of an experienced CTO operator in the repeat attempt and the location of the CTO.

关键词： Repeat percutaneous coronary intervention Chronic total occlusion

The Usefulness of Magnetic Resonance Imaging in the Preoperative Study and Postoperative Control in the Laparoscopic Treatment of the Incisional Hernia

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Surgical Science 2015年第8期6卷 376-382页

作者： J.C.Martín del Olmo Luis García-Vallejo Jose nunez Gestal Pablo Concheiro Coello Francisco Blanco Antona Miguel Toledano Trincado javier Sanchez Gonzalez M.Luz Martín Esteban L.Colao Carlos Vaquero Puerta Miguel Carbajo Surgery Department Medina del Campo HospitalValladolidSpain Surgery Department CHUSCalle Rua de Ramon BaltarSantiago de CompostelaSpain Radiology Department CHUSCalle Rua de Ramon BaltarSantiago de CompostelaSpain Department of General and Digestive Surgery Medina del Campo HospitalValladolidSpain Surgery Department University of ValladolidValladolidSpain CEOAD ValladolidSpain

Background and Objectives: The aim of this study is to evaluate the usefulness of Magnetic Resonance Imaging (MRI) for planning surgery and postoperative control of complex cases of abdominal wall hernia. Methods: Included in a prospective data base with more than 350 patients treated in two centers, a prospective study over ten patients with complex incisional hernias was designed. In all cases, preoperative diagnosis study and postoperative imaging control by MR Imaging were established. In the early and late follow-up controls, local and general complications were specifically noted and studied by MRI in each case. Results: The preoperative MRI was effective method for an adequate understanding of the defects and hernia sack content. In the postoperative control, the MRI was useful in the follow-up of the mesh integration, detection of complications and diagnosis of the relapsing. Conclusion: In our experience the MRI test is specially recommended in the preoperative workup of complex cases of incisional hernia.

关键词： Incisional Hernia MR Imaging Laparoscopic Eventroplasty

Current role of capsule endoscopy in Crohn's disease

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

World Journal of Gastrointestinal Endoscopy 2016年第17期8卷 572-583页

作者： Marisol Luján-Sanchis Laura Sanchis-Artero Laura Larrey-Ruiz Laura Peno-Munoz Paola nunez-Martinez Génesis Castillo-López Lara González-González Carlos Boix Clemente Cecilia Albert Antequera Ana Durá-Ayet javier Sempere-Garcia-Argüelles Digestive Diseases Unit General University Hospital of Valencia 46014 Valencia Spain

Capsule endoscopy (CE) currently plays an important role in Crohn’s disease (CD). It is a noninvasive technique that has led to a breakthrough in the endoscopic diagnosis of diseases of the small intestine. Its superior diagnostic performance and excellent safety profile lead to its considerable acceptance on the part of the patient. This paper reviews current indications of CE in three stages of clinical practice: Suspected CD, unclassified colitis and its extensive role in diagnosed CD. The diagnostic and therapeutic impact of the results of CE on the monitoring of this disease is also reviewed. Knowledge of its applications, the interpretation of its results in an appropriate context and the existence of a validated endoscopic activity index could change the way in which these patients are managed. The definition of mucosal healing and postoperative recurrence by means of endoscopic scoring systems will endow CE with new applications in the management of CD in the near future.

关键词： Capsule endoscopy Inflammatory bowel disease Crohn&rsquo s disease

αKLOTHO and sTGFβR2 treatment counteract the osteoarthritic phenotype developed in a rat model

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Protein & Cell 2020年第3期11卷 219-226页

作者： Paloma Martinez-Redondo Isabel Guillen-Guillen Noah Davidsohn Chao Wang javier Prieto Masakazu Kurita Fumiyuki Hatanaka Cuiqing Zhong Reyna Hernandez-Benitez Tomoaki Hishida Takashi Lezaki Akihisa Sakamoto Amy NNemeth Yuriko Hishida Concepcion Rodriguez Esteban Kensaku Shojima Ling Huang Maxim Shokhirev Estrella nunez-Delicado Josep MCampistol Isabel Guillen-Vicente Elena Rodriguez-Inigo Juan Manuel Lopez-Alcorocho Marta Guillen-Vicente George Church Pradeep Reddy Pedro Guillen-Garcia Guang-Hui Liu Juan Carlos Izpisua Belmonte Gene Expression Laboratory Salk Institute for Biological Studies10010 North Torrey Pines RoadLa JollaCA 92037USA Wyss Institute for Biologically Inspired Engineering Harvard UniversityCambridgeMA 02115USA Department of Genetics Harvard Medical SchoolBostonMA 02115USA Integrative Genomics and Bioinformatics Core Salk Institute for Biological Studies10010 North Torrey Pines RoadLa JollaCA 92037USA Universidad Catolica San Antonio de Murcia(UCAM) Campus de los JeronimosNo 1351230107 GuadalupeSpain Hospital Clinic of Barcelona Career Villarroel17008036 BarcelonaSpain Department of Traumatology and Research Unit Clinica CEMTRO28035 MadridSpain National Laboratory of Biomacromolecules CAS Center for Excellence in BiomacromoleculesInstitute of BiophysicsChinese Academy of SciencesBeijing 100101China University of Chinese Academy of Sciences Beijing 100049China Institute for Stem cell and Regeneration Chinese Academy of SciencesBeijing 100101China Translational Medical Center for Stem Cell Therapy Shanghai East HospitalTongji University School of MedicineShanghai 200120China

Dear Editor,Homeostasis and repair are critical biological processes that allow for tissue and organ preservation and function in multicellular *** regulation and extension vary drastically across the animal kingdom,and mammals show limited tissue-specific regenerative capacity that declines with *** aging,articular cartilage is one of the tissues that undergo substantial changes in the matrix structure,molecular composition,metabolic activity,and mechanical properties(Loeser et al.2016).

关键词： aging treatment critical

Klotho in cardiovascular disease:Current and future perspectives

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

World Journal of Biological Chemistry 2015年第4期6卷 351-357页

作者： javier Donate-Correa Ernesto Martin-nunez Carmen Mora-Fernandez Mercedes Muros-de-Fuentes Nayra Perez-Delgado Juan F Navarro-Gonzalez Research Unit University Hospital Nuestra Senora de Candelaria Clinical Biochemistry Service University Hospital Nuestra Senora de Candelaria Nephrology Service University Hospital Nuestr Senora de Candelaria

Protein Klotho,beyond its role as a regulator of the phosphatemia,is also involved in the maintaining of the cardiovascular health,being associated its alterations with the development of cardiovascular damage and increased morbi-mortality. For all this,nowadays Klotho is the subject of a thorough research which is focused on uncover its intimate mechanisms of action,and in analyzing the utility of its modulation as a potential strategy with clinical applicability. Molecular mechanisms of Klotho are not well understood but an emerging research area links Klotho deficiency with vascular pathology. Changes in this protein have been associated with cardiovascular-related complications like inflammation,vascular calcification,and endothelial dysfunction. All this is particularly relevant if considering the recent discovery of Klotho expression in vascular tissue.

关键词： Klotho Cardiovascular disease Chronic kidney disea