|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Mechanical properties of the A356 aluminum alloy modified with La/Ce显示文摘The research of rare earths for the synthesis of materials with improved mechanical performance is of great interest when they are considered for potential applications in the automotive industry. In this regard, the effect on the mechanical properties and microstructure of the automotive A356 aluminum alloy reinforced with 0.2 (wt.%) Al-6Ce-3La (ACL) was investigated. The ACL was added to the melted A356 alloy in the as-received condition and processed by mechanical milling. In the second route, the effect of the ACL processed by mechanical milling and powder metallurgy techniques was investigated, and compared with the results obtained from the A356 alloy strengthened with ACL in the as-received condition. Microstructural properties were evaluated by means of X-ray diffraction in order to observe the solubility of Ce/La in the Al matrix. In addition, electron microscopy was employed in order to investigate the effect of milling time on the size and morphology of La/Ce phase under milling process. Mechanical properties of the A356 alloy modified with ACL were measured by hardness and tensile test. For comparison unmodified specimens of the A356 were characterized according to the previous procedure. The microstructural and mechanical characterization was carried out in specimens after solution and artificial aging. Observations in scanning electron microscopy indicated a homogeneous dispersion of La/Ce phases by using both routes; however, mechanical results, in the modified A356 alloy with the ACL in the as-received condition, showed an improvement in the mechanical performance of the A356 alloy over that reinforced with the ACL mechanically milled. | E. Aguirre-De la Torre R. Pérez-Bustamante J. Camarillo-Cisneros C.D. Gómez-Esparza H.M. Medrano-Prieto R. Martínez-Sánchez | 2013 | Journal of Rare Earths2013，31，8： | 25 |
| 2 | Human papillomavirus in esophageal squamous cell carcinoma in Colombia and Chile显示文摘AIM: To examine the presence of human papillomavirus (HPV) in esophageal squamous cell carcinoma (ESCC) specimens collected from Colombia and Chile located in the northern and southern ends of the continent, respectively. METHODS: We examined 47 and 26 formalin-fixed and paraffin-embedded ESCC specimens from Colombia and Chile, respectively. HPV was detected using GP5+/GP6+ primer pair for PCR, and confirmed by Southern blot analysis. Sequencing analysis of L1 region fragment was used to identify HPV genotype. In addition, P16INK4A protein immunostaining of all the specimens was conducted. RESULTS: HPV was detected in 21 ESCC specimens (29%). Sequencing analysis of L1 region fragment identified HPV-16 genome in 6 Colombian cases(13%) and in 5 Chilean cases (19%). HPV-18 was detected in 10 cases (21%) in Colombia but not in any Chilean case. Since Chilean ESCC cases had a higher prevalence of HPV-16 (without statistical significance), but a significantly lower prevalence of HPV-18 than in Colombian cases (P = 0.011) even though the two countries have similar ESCC incidence rates, the frequency of HPV-related ESCC may not be strongly affected by risk factors affecting the incidence of ESCC. HPV-16 genome was more frequently detected in p16 positive carcinomas, although the difference was not statistically significant. HPV-18 detection rate did not show any association with p16 expression. Well-differentiated tumors tended to have either HPV-16 or HPV-18 but the association was not statistically significant. HPV genotypes other than HPV-16 or 18 were not detected in either country. CONCLUSION: HPV-16 and HPV-18 genotypes can be found in ESCC specimens collected from two South American countries. Further studies on the relationship between HPV-16 presence and p16 expression in ESCC would aid understanding of the mechanism underlying the presence of HPV in ESCC. | Andres Castillo Francisco Aguayo Chihaya Koriyama Miyerlandi Torres Edwin Carrascal Alejandro Corvalan Juan P Roblero Cecilia Naquira Mariana Palma Claudia Backhouse Jorge Argandona Tetsuhiko Itoh Karem Shuyama Yoshito Eizuru Suminori Akiba | 2006 | World Journal of Gastroenterology2006，12，38： | 11 |
| 3 | 烟酰胺磷酸核糖基转移酶促进肺血管重塑,是肺动脉高压的治疗靶点显示文摘肺动脉高压(pulmonary arterial hypertension,PAH)是一种严重的进行性疾病,其标志之一是肺血管重塑。烟酰胺磷酸核糖基转移酶(nicotinamide phosphoribosyl transferase,NAMPT)是调节细胞内烟酰胺腺嘌呤二核苷酸水平、细胞氧化还原状态,调节组蛋白脱乙酰酶,促进细胞增殖和抑制凋亡的一种细胞酶。研究人员假设NAMPT可促进肺血管重塑, | Chen J Sysol JR Singla S Zhao S Yamamura A Valdez-Jasso D Abbasi T Shioura KM Sahni S Reddy V Sridhar A Gao H Torres J Camp SM Tang H Ye SQ Comhair S Dweik R Hassoun P Yuan JX Garcia JG Machado RF 刘莉 叶鹏 | 2017 | 中华高血压杂志2017，25，2： | 10 |
| 4 | Gastroenterology case report of mesalazine-induced cardiopulmonary hypersensitivity显示文摘Mesalazine is a 5-aminosalicylic acid derivative that has been widely used to treat patients with inflammatory bowel disease. Accumulating evidence indicates that mesalazine has a very low rate of adverse drug reactions and is well tolerated by patients. However, a few cases of pulmonary and cardiac disease related to mesalazine have been reported in the past, though infrequently, preventing clinicians from diagnosing the conditions early. We describe the case of a 32-yearold man with ulcerative colitis who was admitted with a two-month history of persistent fever following mesalazine treatment initiated 14 mo earlier. At the time of admission, mesalazine dose was increased from 1.5 to 3.0 g/d, and antibiotic therapy was started with no improvement. Three weeks after admission, the patient developed dyspnea, non-productive cough, and chest pain. Severe eosinophilia was detected in laboratory tests, and a computed tomography scan revealed interstitial infiltrates in both lungs, as well as a large pericardial effusion. The bronchoalveolar lavage reported a CD4/CD8 ratio of 0.5, and an increased eosinophil count. Transbronchial biopsy examination showed a severe eosinophilic infiltrate of the lung tissue. Mesalazine-induced cardiopulmonary hypersensitivity was suspected after excluding other possible etiologies. Consequently, mesalazine treatment was suspended, and corticosteroid therapy was initiated, resulting in resolution of symptoms and radiologic abnormalities. We conclude that mesalazine-induced pulmonary and cardiac hypersensitivity should always be considered in the differential diagnosis of unexplained cardiopulmonary symptoms and radiographic abnormalities in patients with inflammatory bowel disease. | José Ferrusquía Isabel Pérez-Martínez Ricardo Gómez de la Torre María Luisa Fernández-Almira Ruth de Francisco Luis Rodrigo Sabino Riestra | 2015 | World Journal of Gastroenterology2015，21，13： | 5 |
| 5 | Increased incidence of and microbiologic changes in pyogenic liver abscesses in the Mexican population显示文摘BACKGROUND Pyogenic liver abscess(PLA)is a rare disease with an estimated incidence that varies widely across the globe,being as high as 115.4/100000 habitants in Taiwan and as low as 1.1-1.2/100000 habitants in Europe and Canada.Even though there are multiple microorganisms capable of producing an abscess in the liver,including Entamoeba histolytica,fungi,and viruses,most abscesses are derived from bacterial infections.The epidemiology of PLA in Mexico is currently unknown.AIM To describe the clinical,demographic and microbiologic characteristics of PLA in Mexico.METHODS This is a retrospective study carried out in two centers,and included patients seen between 2006 and 2018 with the diagnosis of pyogenic abscess.We collected demographic,clinical,and microbiological information,treatment,complications,and outcomes.A logistic regression analysis was used to determine the association between different variables and mortality rates.RESULTS A total of 345 patients were included in this study.233(67.5%)had confirmed PLA,133(30%)patients had no positive culture and negative serology and 9(2.5%)had mixed abscesses.The mean age was 50 years(ranging from 16-97 years)and 63%were female.65%of the patients had positive cultures for Extended Spectrum Beta-Lactamases(ESBL)-Escherichia coli and Klebsiella pneumoniae.Cefotaxime was administered in 60%of cases.The most common sources of infection were ascending cholangitis and cholecystitis in 34(10%)and 31(9%),respectively.The median length of hospital stay was 14 d.165 patients underwent percutaneous catheter drainage.The inpatient mortality rate was 63%.Immunocompromised state[OR 3.9,95%CI:1.42-10.46],ESBL-Escherichia coli[OR 6.7,95%CI:2.7-16.2]and Klebsiella pneumoniae[OR 4-8,95%CI:1.6-14.4]predicted inpatient mortality by multivariate analysis.CONCLUSION The prevalence of PLA is increasing in Mexico and has a very high mortality rate.ESBL-Escherichia coli and Klebsiella pneumoniae are the most common microorganisms causing PLA and are independent predictors of inpatient mortality. | Juanita Pérez-Escobar Wagner Ramirez-Quesada Daniel Alejandro Calle-Rodas Luis Alberto Chi-Cervera Nalu Navarro-Alvarez Jorge Aquino-Matus Juan Pablo Ramírez-Hinojosa Carlos Moctezuma-Velázquez Aldo Torre | 2020 | World Journal of Hepatology2020，12，10： | 5 |
| 6 | Current role and future perspectives of cardiac rehabilitation in coronary heart disease显示文摘Ischaemic heart disease(IHD)is a major cause of morbidity and mortality worldwide.While there have been major advances in this field,these patients are still a higher risk subgroup.As such,strategies to mitigate risk and tailor secondary prevention measures are of the utmost relevance.Cardiac rehabilitation(CR),encompassing several domains including exercise training,cardiovascular risk factor optimization,nutritional and psychological assessments,as well as other ancillary interventions has shown to be one of the pillars in the contemporary management of patients with IHD.Indeed,CR is associated with several benefits in this population,ranging from functional capacity to improvements in outcomes.Whilst this,there are still several issues concerning the optimal application of CR which are still not fully ascertained,such as lack of referral and completion,as well as questions related to programme design(particularly among patients with multiple comorbidities).In this review,we aim at presenting a pragmatic overview on the current role of CR in the management of individuals with IHD,while also discussing some of the caveats in the current data,as well as future concepts which could help improve the uptake and personalization of this pivotal time-tested intervention. | Eduardo M Vilela Ricardo Ladeiras-Lopes Ana Joao Joana Braga Susana Torres Sofia Viamonte José Ribeiro Madalena Teixeira José P Nunes Ricardo Fontes-Carvalho | 2021 | World Journal of Cardiology2021，13，12： | 5 |
| 7 | Toll‐Like Receptors and Cytokines are Upregulated during H elicobacter pylori Infection in Children显示文摘 | Hugo Lagunes‐Servin Javier Torres Carmen Maldonado‐Bernal Martha Pérez‐Rodríguez Sara Huerta‐Yépez Armando Madrazo de la Garza Leopoldo Mu?oz‐Pérez Lourdes Flores‐Luna Guillermo Ramón‐García Margarita Camorlinga‐Ponce | 2013 | Helicobacter2013，，6： | 2 |
| 8 | New insights into the management of acne: An update from the Global Alliance to Improve Outcomes in Acne Group显示文摘 | Diane Thiboutot Harald Gollnick Vincenzo Bettoli Brigitte Dréno Sewon Kang James J. Leyden Alan R. Shalita Vicente Torres Lozada Diane Berson Andrew Finlay Chee Leok Goh María Isabel Herane Ana Kaminsky Raj Kubba Alison Layton Yoshiki Miyachi Montserrat P | 2009 | Journal of the American Academy of Dermatology2009，，5： | 2 |
| 9 | Device grade microcrystalline silicon owing to reduced oxygen contamination 显示文摘 | Meier J Luckige R F | 1996 | Appl Phys Lett1996，69，： | 1 |
| 10 | Protective effect of carnosol on CC14-induced acute liver damage in rats 显示文摘 | Sotelo-Felix J I Martinez-Fong D Muriel De la Torre P | 2002 | Eur J Gastroenterol Hepatol2002，14，9： | 1 |
| 11 | Carbon material and bioenergetic balances of xylitol production from corncobs by Debaryomyces hansenii 显示文摘 | RIVAS B TORRE P DOMINGUEZ JM | 2003 | Bioteehnol Prog2003，19，3： | 1 |
| 12 | Vitamin B12 and folate depletion in cognition:A review显示文摘 | Moretti R Torre P Antonello RM | 2004 | Neurol India2004，52，3： | 1 |
| 13 | Interaction of elicitor - induced DNA - binding proteins with elicitor response dements in the promoters of parsley PR1 genes显示文摘 | RUSHTON P J TORRES J T PARNISKE M | 1996 | The EMBO Journal1996，15，20： | 1 |
| 14 | Robust Ck/C0 generalized FEM approximations for higher-order conformity requirements:Appfication to Reddy's HSDT model for anisotropic laminated plates thoery显示文摘 | Mendonca P T R Barcellos C S Torres DAF | 2013 | Compos Struct2013，，96： | 1 |
| 15 | Deformation behaviour and microstructure of nanocrystalline electrodeposited and high pressure torsioned nickel显示文摘 | Dalla Torre F Spatig P Schaeublin R | 2005 | Acta Materialia2005，53，： | 1 |
| 16 | Collateral avoids ponzi schemes in incomplete markets显示文摘 | ARAUJO A P(A)SCOA M R TORRES MART(I)NEZ J P | | 0，，4： | 1 |
| 17 | Conjugation of cate-chins with cysteine generates antioxidant compounds with en-hanced neuroprotective activity 显示文摘 | Torres JL Lozano C Maher P | 2005 | Phytochemistry2005，66，17： | 1 |
| 18 | Biomarkers and community-acquired pneumonia : tailoring management with biological data显示文摘 | TORRES A RAMIREZ P MONTULL B | 2012 | Semin Respir Crit Care Med2012，33，3： | 1 |
| 19 | BODE? Index: A Good Quality of Life Marker in Chronic Obstructive Pulmonary Disease Patients 显示文摘 | Sanchez-Salcedo P de Torres JP | 2015 | Arch Bronconeumol2015，51，7： | 1 |
| 20 | Synthesis of new phenolic fatty acid esters and their evaluation as lipophilicantioxidants in an oil matrix显示文摘 | Torres D Pealver P Perez-Victoria I etal | 2007 | Food Chemistry2007，105，2： | 1 |
您所在的机构暂未开通此部分的功能，请联系管理员