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20篇 您的检索式:作者名="Maria Calvo"
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1Risk factors associated with the development of ischemic colitis显示文摘AIM:To ascertain the role of cardiovascular risk factors,cardiovascular diseases,standard treatments and other diseases in the development of ischemic colitis(IC).METHODS:A retrospective,case-control study was designed,using matched data and covering 161 incident cases of IC who required admission to our hospital from 1998 through 2003.IC was diagnosed on the basis of endoscopic findings and diagnostic or compatible his-tology.Controls were randomly chosen from a cohort of patients who were admitted in the same period and required a colonoscopy,excluding those with diagnosis of colitis.Cases were matched with controls(ratio 1:2),by age and sex.A conditional logistic regression was performed.RESULTS:A total of 483 patients(161 cases,322 con-trols)were included;mean age 75.67±10.03 years,55.9%women.The principal indications for colonos-copy in the control group were lower gastrointestinal hemorrhage(35.4%),anemia(33.9%),abdominal pain(19.9%)and diarrhea(9.6%).The endoscopic findings in this group were hemorrhoids(25.5%),diverticular disease(30.4%),polyps(19.9%)and colorectal cancer(10.2%).The following variables were associated with IC in the univariate analysis:arterial hypertension(P= 0.033);dyslipidemia(P<0.001);diabetes mellitus(P =0.025);peripheral arterial disease(P=0.004);heart failure(P=0.026);treatment with hypotensive drugs(P=0.023);angiotensin-converting enzyme inhibitors;(P=0.018);calcium channel antagonists(P=0.028);and acetylsalicylic acid(ASA)(P<0.001).Finally,the following variables were independently associated with the development of IC:diabetes mellitus[odds ratio(OR)1.76,95%confidence interval(CI):1.001-3.077,P=0.046];dyslipidemia(OR 2.12,95%CI:1.26-3.57,P=0.004);heart failure(OR 3.17,95%CI:1.31-7.68,P=0.01);peripheral arterial disease(OR 4.1,95%CI:1.32-12.72,P=0.015);treatment with digoxin(digitalis)(OR 0.27,95%CI:0.084-0.857,P=0.026);and ASA(OR 1.97,95%CI:1.16-3.36,P=0.012).CONCLUSION:The development of an episode of IC was independently associated with diabetes,dyslipid-emia,presence of heart failure,peripheral arterial dis-ease and treatment with digoxin or ASA.Joaquín Cubiella Fernández Luisa Núez Calvo Elvira González Vázquez Maria Jesús García García Maria Teresa Alves Pérez Isabel Martínez Silva Javier Fernández Seara 2010World Journal of Gastroenterology2010,16,36:27
2Polyethylene glycol rinse solution:An effective way to prevent ischemia-reperfusion injury显示文摘AIM:To test whether a new rinse solution containing polyethylene glycol 35(PEG-35)could prevent ischemia-reperfusion injury(IRI)in liver grafts.METHODS:Sprague-Dawley rat livers were stored in University of Wisconsin preservation solution and then washed with different rinse solutions(Ringer’s lactate solution and a new rinse solution enriched with PEG-35 at either 1 or 5 g/L)before ex vivo perfusion with Krebs-Heinseleit buffer solution.We assessed the following:liver injury(transaminase levels),mitochondrial damage(glutamate dehydrogenase activity),liver function(bile output and vascular resistance),oxidative stress(malondialdehyde),nitric oxide,liver autophagy(Beclin-1 and LCB3)and cytoskeleton integrity(filament and globular actin fraction);as well as levels of metalloproteinases(MMP2 and MMP9),adenosine monophosphate-activated protein kinase(AMPK),heat shock protein 70(HSP70)and heme oxygenase 1(HO-1).RESULTS:When we used the PEG-35 rinse solution,reduced hepatic injury and improved liver function were noted after reperfusion.The PEG-35 rinse solution prevented oxidative stress,mitochondrial damage,and liver autophagy.Further,it increased the expression of cytoprotective heat shock proteins such as HO-1 and HSP70,activated AMPK,and contributed to the restoration of cytoskeleton integrity after IRI.CONCLUSION:Using the rinse solution containing PEG-35 was effective for decreasing liver graft vulnerability to IRI.Mohamed Amine Zaouali Mohamed Bejaoui Maria Calvo Emma Folch-Puy Eirini Pantazi Gianfranco Pasut Antoni Rimola Hassen Ben Abdennebi René Adam Joan Roselló-Catafau 2014World Journal of Gastroenterology2014,20,43:6
3双调蛋白反义核酸表达对裸鼠乳腺癌血管生成的抑制作用显示文摘目的研究双调蛋白(AR)反义RNA表达对乳腺癌血管生成的抑制作用。方法乳腺癌NS2T2A1细胞经AR反义cDNA质粒转染后,经筛选获得表达AR反义RNA的AR-AS1及AR-AS3克隆,转染空载体获得NS2T2A1V对照细胞,接种裸鼠皮下形成肿瘤。研究条件培养液对人微血管内皮细胞(HMEC)增殖的影响,以ELISA法测定细胞血管内皮生长因子(VEGF)分泌量。以定量RT-PCR分析肿瘤组织的VEGF表达水平。以免疫组化法标记CD31研究肿瘤内血管数量。结果HMEC在AR-AS1和AR-AS3细胞条件培养液中的增殖比例明显降低。AR-AS1和AR-AS3细胞VEGF分泌量亦降低。AR-AS1和AR-AS3肿瘤的血管数量仅有对照组的50%左右,且VEGF表达显著降低。结论AR反义RNA表达可有效抑制乳腺癌的血管生成,应作为新治疗靶点进一步研究。马林 SEROVA Maria PODGORNIAK Marie Pierre BERTHOIS Yolande MOURAH Samia CALVO Fabien 2005中华肿瘤杂志2005,27,9:3
4Polyethylene glycols: An effective strategy for limiting liver ischemia reperfusion injury显示文摘Liver ischemia-reperfusion injury(IRI) is an inherent feature of liver surgery and liver transplantation in which damage to a hypoxic organ(ischemia) is exacerbated following the return of oxygen delivery(reperfusion). IRI is a major cause of primary nonfunction after transplantation and may lead to graft rejection, regardless of immunological considerations. The immediate response involves the disruption of cellular mitochondrial oxidative phosphorylation and the accumulation of metabolic intermediates during the ischemic period, and oxidative stress during blood flow restoration. Moreover, a complex cascade of inflammatory mediators is generated during reperfusion, contributing to the extension of the damage and finally to organ failure. A variety of pharmacological interventions(antioxidants, anticytokines, etc.) have been proposed to alleviate graft injury but their usefulness is limited by the local and specific action of the drugs and by their potential undesirable toxic effects. Polyethylene glycols(PEGs), which are non-toxic water-soluble compounds approved by the FDA, have been widely used as a vehicle or a base in food, cosmetics and pharmaceuticals, and also as adjuvants for ameliorating drug pharmacokinetics. Some PEGs are also currently used as additives in organ preservation solutions prior to transplantation in order to limit the damage associated with cold ischemia reperfusion. More recently, the administration of PEGs of different molecular weights by intravenous injection has emerged as a new therapeutic tool to protect liver grafts from IRI. In this review, we summarize the current knowledge concerning the use of PEGs as a useful target for limiting liver IRI.Gianfranco Pasut Arnau Panisello Emma Folch-Puy Alexandre Lopez Carlos Castro-Benítez Maria Calvo Teresa Carbonell Agustín García-Gil RenéAdam Joan Roselló-Catafau 2016World Journal of Gastroenterology2016,22,28:3
5Liver fat deposition and mitochondrial dysfunction in morbid obesity:An approach combining metabolomics with liver imaging and histology显示文摘AIM: To explore the usefulness of magnetic resonance imaging(MRI) and spectroscopy(MRS) for assessment of non-alcoholic fat liver disease(NAFLD) as compared with liver histological and metabolomics findings. METHODS: Patients undergoing bariatric surgery following procedures involved in laparoscopic sleeve gastrectomy were recruited as a model of obesityinduced NAFLD in an observational, prospective, singlesite, cross-sectional study with a pre-set duration of 1 year. Relevant data were obtained prospectively and surrogates for inflammation, oxidative stress and lipid and glucose metabolism were obtained through standard laboratory measurements. To provide reliable data from MRI and MRS, novel procedures were designed to limit sampling variability and other sources of error using a 1.5T Signa HDx scanner and protocols acquired from the 3D or 2D Fat SAT FIESTA prescription manager. We used our previously described 1H NMRbased metabolomics assays. Data were obtained immediately before surgery and after a 12-mo period including histology of the liver and measurement of metabolites. Values from 1H NMR spectra obtained after surgery were omitted due to technical limitations.RESULTS: MRI data showed excellent correlation with the concentration of liver triglycerides, other hepatic lipid components and the histological assessment, w h i c h e xc l u d e d t h e p r e s e n c e o f n o n-a l c o h o l i c steatohepatitis(NASH). MRI was sufficient to follow up NAFLD in obese patients undergoing bariatric surgery and data suggest usefulness in other clinical situations. The information provided by MRS replicated that obtained by MRI using the-CH3 peak(0.9 ppm), the-CH2- peak(1.3 ppm, mostly triglyceride) and the-CH=CH- peak(2.2 ppm). No patient depicted NASH. After surgery all patients significantly decreased their body weight and steatosis was virtually absent even in patients with previous severe disease. Improvement was also observed in the serum concentrations of selected variables. The most relevant findings using metabolomics indicate increased levels of triglyceride and monounsaturated fatty acids in severe steatosis but those results were accompanied by a significant depletion of diglycerides, polyunsaturated fatty acids, glucose-6-phosphate and the ATP/AMP ratio. Combined data indicated the coordinated action on mitochondrial fat oxidation and glucose transport activity and may support the consideration of NAFLD as a likely mitochondrial disease. This concept may helpto explain the dissociation between excess lipid storage in adipose tissue and NAFLD and may direct the search for plasma biomarkers and novel therapeutic strategies. A limitation of our study is that data were obtained in a relatively low number of patients.CONCLUSION: MRI is sufficient to stage NAFLD in obese patients and to assess the improvement after bariatric surgery. Other data were superfluous for this purpose.Nahum Calvo Raúl Beltrán-Debón Esther Rodríguez-Gallego Anna Hernández-Aguilera Maria Guirro Roger Mariné-Casadó Lidón Millá Josep M Alegret Fàtima Sabench Daniel del Castillo María Vinaixa Miguelàngel Rodríguez Xavier Correig Roberto García-álvarez Javier A Menendez Jordi Camps Jorge Joven 2015World Journal of Gastroenterology2015,21,24:2
6Pharmacological properties of Anagallis arvensis L. (“scarlet pimpernel”) and Anagallis foemina Mill. (“blue pimpernel”) traditionally used as wound healing remedies in Navarra (Spain)显示文摘Víctor López Anna K. J?ger Silvia Akerreta Rita Yolanda Cavero Maria Isabel Calvo 2011Journal of Ethnopharmacology2011,,3:2
7Caveolin-1 loss-of-function accelerates GLUT4 and insulin receptor degradation in 3T3-L1 adipocytes显示文摘Elena Gonzalez-Munoz Carmen Lopez-Iglesias Maria Calvo 2009Endocrinology2009,10,:1
8Evaluation of the Hot Ductility of a C - Mn Steel Produced From Scrap Recycling 显示文摘Jessica Calvo Jose Maria Cabrera Ahmad Rezaeian 2007ISIJ International2007,47,10:1
9Gyrator transform: properties and applications 显示文摘Rodrigo Jose A Alieva Tatiana Calvo Maria L 2007Optics Express2007,15,5:1
10Cuff-leak test for the diagnosis of upper airway obstruction in adults: a systematic review and meta-analysis显示文摘Maria Elena Ochoa Maria del Carmen Marín Fernando Frutos-Vivar Federico Gordo Jaime Latour-Pérez Enrique Calvo Andres Esteban 2009Intensive Care Medicine2009,,7:1
11Diabetic nephropathy induces changes in the proteome of human urinary exosomes as revealed by label-free comparative analysis显示文摘Irene Zubiri Maria Posada-Ayala Aroa Sanz-Maroto Enrique Calvo Marta Martin-Lorenzo Laura Gonzalez-Calero Fernando de la Cuesta Juan A. Lopez Beatriz Fernandez-Fernandez Alberto Ortiz Fernando Vivanco Gloria Alvarez-Llamas 2014Journal of Proteomics2014,,:1
12Gadolinium ( Ⅲ) and europium (Ⅲ) L-glutamates: Synthesis and characterization 显示文摘Beatriz Barja Ricardo Baggio Rafael Calvo Maria T Garland Mireille Perec Alberto Rizzi 2006Inorganiea Chimiea Aeta2006,359,12:1
13Gyrator transform: properties and applications显示文摘RODRIGO JOSl A ALIEVA TATIANA CALVO MARIA L 2007Optics Express2007,15,5:1
14Experimental implementation of the gyrator transform显示文摘RODRIGO JOSI A ALIEVA TATIANA CALVO MARIA L 2007Journal of the Optics Society of America2007,24,10:1
15In vitro propagation of Lavender显示文摘Maria Carmen Calvo Juan Segura 1989Hortscience1989,24,2:1
16Automation System for Quality Control in Manufacture of Iodine-125 Sealed Sources Used in Brachytherapy显示文摘Samir Luiz Somessari Anselmo Feher Francisco Edmundo Sprenger Maria Elisa Chuery Martins Rostelato Carlos A. Zeituni Joao A. Moura Osvaldo Luiz da Costa Wilson Aparecido Parejo Calvo 2013Journal of Physical Science and Application2013,3,6:0
17Study of the Positioning Influence in the Water Activity Measurement during Leak Test of Iodine-125 Seeds显示文摘Joao A. Moura Anselmo Feher Carlos A. Zeituni Maria E. C. M. Rostelato Wilson A. P. Calvo Oswaldo L.Costa Carla D. Souza Dib K. Junior Anderson R. Camargo 2015Journal of Physical Science and Application2015,5,5:0
18A Lyophilized Water Extract of Melissa officinalis L. as an Effective Natural Antioxidant during the Storage of Dry Fermented Sausages High in a-Linolenic Acid and DHA显示文摘Mikel Garcia-ifiiguez de Cirianol Eduardo Larequi Izaskun Berasategi Maria Isabel Calvo Rita Yolanda Cavero inigo Navarro-Blasco Iciar Astiasaran Diana Ansorena 2012Journal of Food Science and Engineering2012,2,1:0
19COVID-19 ocular findings in children: a case series显示文摘Children account for 1%of cases of COVID-19 in most published series,with significantly reduced risk of developing severe forms of disease or death[1-3].Because most children present with mild forms of acute respiratory infections,interest has been focused initially on children with underly-ing/comorbid diseases and concentrated rare fatalities[1,4].Celia Fernandez Alcalde Maria Granados Fernandez Maria Nieves Moreno Cristina Calvo Rey Iker Fakes Romero Susana Noval Martin 2021World Journal of Pediatrics2021,17,3:0
20Performance Appraisal System in Technology Start-Ups: Strategic Implications for HR Managers显示文摘Nuria Calvo Maria Bastida Jacobo Feas 2012China-USA Business Review2012,11,7:0
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