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50篇 您的检索式:作者名="Silva Claudio"
    题名 作者 年代 出处 被引量
1垃圾堆肥中重金属离子研究显示文摘通过跟踪1个快速垃圾堆肥处理过程,分析了该过程中总重金属离子浓度变化,并用连续萃取法分析了可被植物吸收和利用的金属离子浓度在垃圾堆肥处理中的变化情况.结果证明,通过垃圾堆肥过程,不可能降低重金属离子的含量。蒋晓惠 Baffi Claudio Sandro Silva 1999四川师范学院学报(自然科学版)1999,20,1:15
2Association between Helicobacterpylori, Epstein-Barr virus, human papillomavirus and gastric adenocarcinomas显示文摘AIM To correlate Helicobacter pylori(H. pylori), Epstein-Barr virus(EBV) and human papillomavirus(HPV) with gastric cancer(GC) cases in Pará State, Brazil.METHODS Tissue samples were obtained from 302 gastric adenocarcinomas. A rapid urease test was used to detect the presence of H. pylori, and the presence of the cagA gene in the HP-positive samples was confirmed by PCR. An RNA in situ hybridization test designed to complement Eber1 RNA was used to detect the presence of EBV in the samples, and the L1 region of HPV was detected using nested PCR. Positive HPV samples were genotyped and analyzed for E6 and E7 viral gene expression. Infections were also correlated with the clinical and pathological characteristics of the patients.RESULTS The majority of the 302 samples analyzed were obtained from men(65%) aged 55 years or older(67%) and were classified as the intestinal subtype(55%). All three pathogens were found in the samples analyzed in the present study(H. pylori : 87%, EBV: 20%, HPV: 3%). Overall, 78% of the H. pylori-positive(H. pylori+) samples were cag A +(H. pylori-cag A+), and there was an association between the cytotoxic product of this gene and EBV. Coinfections of H. pylori-cagA+ and EBV were correlated with the most advanced tumor stages. Although only 20% of the tumors were positive for EBV, infection with this virus was associated with distant metastasis. Only the HPV 16 and 18 strains were found in the samples, although no expression of the E6 and E7 oncoproteins was detected. The fundus of the stomach was the region least affected by the pathogens.CONCLUSION HPV was not involved in gastric tumorigenesis. Prophylactic and therapeutic measures against H. pylori and EBV may prevent the development of GC, especially the more aggressive forms.Carolina Rosal Teixeira de Souza Marcelli Carolini Alves Almeida Andre Salim Khayat Emerson Lucena da Silva Paulo Cardoso Soares Luiz Claudio Chaves Rommel Mario Rodriguez Burbano 2018World Journal of Gastroenterology2018,24,43:6
3Inflammatory bowel disease in an underdeveloped region of Northeastern Brazil显示文摘AIM: To evaluate the demographic characteristics and clinical phenotypes of inflammatory bowel disease(IBD) in a geographic area in Northeastern Brazil.METHODS: This retrospective study was conducted at the Hospital of the Federal University of Piauí in Northeastern Brazil. Demographic characteristics and clinical phenotypes of IBD were analyzed in relation to the time of diagnostic confirmation, which was defined as the date of disease onset. Data were collected between January 2011 and December 2012 and included all census patients 18 years of age or older during that period for whom there was diagnostic confirmation of Crohn's disease(CD), ulcerative colitis(UC), or unclassified colitis according to the Montreal criteria. We also analyzed the period of time between the onset of clinical manifestations and the diagnosis of IBD(delay in the diagnosis). Statistical analyses included means and standard deviations for numeric variables and the Pearson χ2 adherence test for nominal variables. The annual index occurrence and overall prevalence of IBD at our institution were also calculated, with P values < 0.05 indicating statistical significance. This study was approved by the Institutional Ethics and Research Committee.RESULTS: A total of 252 patients with IBD were included, including 152(60.3%) UC patients and 100(39.7%) CD patients. The clinical and demographic characteristics of all patients with IBD showed a female to male ratio of 1.3:1.0 and a mean age of35.2(SD = 14.5) years. In addition, the majority of patients were miscegenated(171, 67.9%), had received higher education(157, 62.4%), lived in urban areas(217, 86.1%), and were under the age of 40 years(97, 62.5%). For patients with CD, according to the Montreal classification, the predominant features present from the onset of disease were an age between 17 and 40 years(A2); colonic disease location(L2); and nonstricturing, nonfistulizing disease behavior(B1). However, approximately one-quarter of all CD patients demonstrated perineal involvement. We also observed considerable delay in the diagnosis of IBD throughout the entire study period(mean = 35.5 mo). In addition, the annual index occurrence rose from 0.08 to 1.53 cases/105 inhabitants/year during the study period, and the prevalence rate was 12.8 cases/105 inhabitants in 2012. Over the last two decades, there was a noted increase in the frequency of IBD in the study area.CONCLUSION: In this study, there was a predominance of patients with UC, young people under 40 years of age, individuals with racial miscegenation, and low annual incomes.José Miguel Luz Parente Claudio Saddy Rodrigues Coy Viriato Campelo Mírian Perpétua Palha Dias Parente Leonardo Araújo Costa Renata Mendes da Silva Celso Stephan José Murilo Robilotta Zeitune 2015World Journal of Gastroenterology2015,21,4:3
4Detection of anti-Helicobacter pyloriantibodies in serum and duodenal fluid in peptic gastroduodenal disease显示文摘AIM: To study the diagnosis of He/icobacterpy/ori(H pylori) infection through the determination of serum levels of anti-H pylori IgG and IgA antibodies, and the levels of anti- H pylori IgA antibodies in duodenal fluid. METHODS: Data were collected from 93 patients submitted to upper digestive endoscopy due to dyspeptic symptoms. The patients were either negative (group A) or positive (group B) to Hpyloriby means of both histological detection and urease tests. Before endoscopy, peripheral blood was collected for the investigation of anti-H pylori IgG and IgA antibodies. To perform the urease test, biopsies were obtained from the gastric antrum. For the histological evaluation, biopsies were collected from the gastric antrum (greater and lesser curvatures) and the gastric body. Following this, duodenal fluid was collected from the first and second portions of the duodenum. For the serological assaying of anti-Hpy/oriIgG and IgA, and anti-Hpy/oriIgA in duodenal fluids, the ELISA method was utilized. RESULTS: The concentration of serum IgG showed sensitivity of 64.0%, specificity of 83.7%, positive predictive value of 82.0%, negative predictive value of 66.6% and accuracy of 73.1% for the diagnosis of H pyloriinfection. For the same purpose, serum IgA showed sensitivity of 72.0%, specificity of 65.9%, positive predictive value of 72.0%, negative predictive value of 67.4% and accuracy of 69.8%. If the serological tests were considered together, i.e. when both were positive or negative, the accuracy was 80.0%, sensitivity was 86.6%, specificity was 74.2%, positive predictive value was 74.2% and negative predictive value was 86.6%. When values obtained in the test for detecting IgA in the duodenal fluid were analyzed, no significant difference (P=0.43) was observed between the values obtained from patients with or without Hpyloriinfection. CONCLUSION: The results of serum IgG and IgA tests for H pylori detection when used simultaneously, are more efficient in accuracy, sensitivity and negative predictive value, than those when used alone. The concentration of IgA antibodies in duodenal fluid is not useful in identifying patients with or without H pylori.Angelo Locateili Wilson Roberto Catapani Claudio Rufino Gomes Junior Claudilene Battistin Paula Silva Jaques Waisberg 2004World Journal of Gastroenterology2004,10,20:3
5Design Optimization and Weight Reduction of 500 mL CSD PET Bottle through FEM Simulations显示文摘Carlos Alberto Silva De Miranda Jairo Jose Drummond Camara Olavo Pena Monken Claudio Gouvea Dos Santos 2011材料科学与工程(中英文B版)2011,1,7:2
6Influence of age in estimating maximal oxygen uptake显示文摘ObjectiveTo 在最大的氧举起的估计( EE )的错误上估计年龄的影响( VO 2最大)用性别和在自从估计,测试的周期测力计锻练特定方程的人口, VO 2最大与实质的 EE 被联系,经常超过20%, 18~91 年,可能,由于机械 efficiency.Methods1850 的内在的可变性,成年人(68%人)经历了最大的周期测力计测试的心肺的锻练。心和肺的健康(CRF ) 相对性别和年龄被估计[更年轻(18 ~ 35 年) ,中年(36 ~ 60 年) 并且更旧(>60 年)] 。VO 2 最大[mL·(kg· min )−1] 被对煤气的交换的评价直接测量并且估计了使用性别和人口特定方程。VO 2 最大和相关 EE 在三年龄特定、性特定的 groups.ResultsDirectly 测量的 VO 2 男人和女人的最大是 29.5 ±10.5 mL·(kg· min )−1 和 24.2 ±9.0 mL·(kg· min )−1(P <0.01 ) 。EE [mL·(kg· min ) 为男人和女人的 −1] 和百分比错误(% E ) 有类似的价值, 0.5 ±3.2 和 0.4 ±2.9 mL·(kg· min )−1, 和 − 0.8 ±13.1% 并且 − 1.7 ±15.4%(P >0.05 ) 分别地。分别地,为每个年龄组的 EE 和 % E 为男人:更年轻的 = 1.9 ±4.1 mL·(kg· min )−1 和 3.8 ±10.5% ,中年的 = 0.6 ±3.1 mL·(kg· min )−1 和 0.4 ±10.3% ,更旧的 =− 0.2 ±2.7 mL·(kg· min )−1 和 − 4.2 ±16.6%(P <0.01 ) ;并且为女人:更年轻的 = 1.2 ±3.1 mL·(kg· min )−1 和 2.7 ±10.0% ,中年的 = 0.7 ±2.8 mL·(kg· min )−1 和 0.5 ±11.1% ,更旧的 =-0.8 ±2.3 mL·(kg· min )−1 和 − 9.5 ±22.4%(P <0.01 ).ConclusionVO 2 最大在更年轻的年龄组被低估并且在老年组被过高估计。年龄显著地影响 VO 2 在男人和女人的最大并且当 CRF 用人口被估计时,应该被认为特定方程,而非直接测量了。Christina G de Souza Silva Barry A Franklin Daniel E Forman Claudio Gil S Araujo 2016Journal of Geriatric Cardiology2016,13,2:2
7Practical considerations on Marching Cubes 33 topological correctness显示文摘Lis Custodio Tiago Etiene Sinesio Pesco Claudio Silva 2013Computers & Graphics2013,,7:1
8Acid and base catalysts in the hybrid silica sol-gel process显示文摘Cesar R Silva Claudio Airoldi 1997J Colloid Int Sci1997,195,2:1
9Electrocardiographic criteria for vagotonia—validation with pharmacological parasympathetic blockade in healthy subjects显示文摘José Kawazoe Lazzoli Pedro Paulo da Silva Soares Antonio Claudio Lucas da Nóbrega Claudio Gil Soares de Araújo 2002International Journal of Cardiology2002,,2:1
10Donepezil: An Important Prototype to the Design of New Drug Candidates for Alzheimerμs Disease显示文摘Maria Cecilia Rodrigues Simoes Flavia Pereira Dias Viegas Marcella Soares Moreira Matheus de Freitas Silva Mariana Maximo Riquiel Patricia Mattos da Rosa Maísa Rosa Castelli Marcelo Henrique dos Santos Marisi Gomes Soares Claudio Viegas 2014Mini-Reviews in Medicinal Chemistry2014,,1:1
11Effects of annealing on the physicochemical properties of fermented cassava starch (polvilho azedo ) 显示文摘Anida M M Gomes Claudio E Mendes da Silva Nagila M P S Ricardo 2005Carbohydrate Polymers2005,60,1:1
12A genetic al- gorithm for the problem of configuring a hub - and - spoke network for a LTL trucking company in Brazil 显示文摘Claudio B Cunha Marcos Roberto Silva 2007European Journal of Operational Research2007,,3:1
13Characterization of powder metallurgy (PM) nickel base superalloys for aeronautical applications 显示文摘Silva J M Claudio R A Sousae Brito A 2006Materials Science Forum2006,514,516:1
14A genetic algorithm for the problem of configuring a hub-and-spoke network for a LTL trucking company in Brazil显示文摘Claudio B. Cunha Marcos Roberto Silva 2005European Journal of Operational Research2005,,3:1
15Prenatal Diagnosis of Treacher-Collins Syndrome Using Three-Dimensional Ultrasonography and Differential Diagnosis with Other Acrofacial Dysostosis Syndromes显示文摘Daniela Cardoso Pereira Luiz Claudio Silva Bussamra Edward Araujo Júnior Carolina Leite Drummond Luciano Marcondes Machado Nardozza Antonio Fernandes Moron José Mendes Aldrighi C. Ficicioglu E. C. Nwosu E. Vaisbuch 2013Case Reports in Obstetrics and Gynecology2013,,:1
16Therapeutic action of physical exercise on markers of oxidative stress induced by chronic kidney disease显示文摘Priscila Soares de Souza Luis Gustavo Costa da Rocha Camila Baumer Tromm Débora Luz Scheffer Eduardo Ghisi Victor Paulo Cesar Lock da Silveira Claudio Teodoro de Souza Luciano Acordi Silva Ricardo Aurino Pinho 20122012 (3-4)2012,,3:1
17Mutations in the Gene Encoding IFT Dynein Complex Component WDR34 Cause Jeune Asphyxiating Thoracic Dystrophy显示文摘Miriam Schmidts Julia Vodopiutz Sonia Christou-Savina Claudio R. Cortés Aideen M. McInerney-Leo Richard D. Emes Heleen H. Arts Beyhan Tüysüz Jason D’Silva Paul J. Leo Tom C. Giles Machteld M. Oud Jessica A. Harris Marije Koopmans Mhairi Marshall Nursel El 2013The American Journal of Human Genetics2013,,5:1
18A genetic algorithm for the problem of configuring a hub-and-spoke network for a LTL trucking company in Brazil显示文摘Claudio B Cunha Marcos Roberto Silva 2007European J of Operational Research2007,179,3:1
19Accuracy of epicardial electroanatomic mapping and ablation of sustained ventricular tachycardia merged with heart CT scan in chronic Chagasic cardiomyopathy显示文摘Bruno Pereira Valdigem Nilton José Carneiro Silva Cristiano Oliveira Dietrich Dalmo Moreira Roberto Sasdelli Ibraim M. Pinto Claudio Cirenza Angelo Amato Vincenzo Paola 2010Journal of Interventional Cardiac Electrophysiology2010,,2:1
20Transendocardial, Autologous Bone Marrow Cell Transplantation for Severe, Chronic Ischemic Heart Failure显示文摘Emerson C. Perin Hans F.R. Dohmann Radovan Borojevic Suzana A. Silva Andre L.S. Sousa Claudio T. Mesquita Maria I.D. Rossi Antonio C. Carvalho Helio S. Dutra Hans J.F. Dohmann Guilherme V. Silva Luciano Belém Ricardo Vivacqua Fernando O.D. Rangel Roberto 2003Circulation: Journal of the American Heart Association2003,,18:1
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