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1Liver expression of steroid hormones and Apolipoprotein D receptors in hepatocellular carcinoma显示文摘AIM: To evaluate the tissular expression of Androgen (A), Estrogen (E) and Progesterone (Pg) receptors, and Apolipoprotein D (ApoD), in liver tumors from resected hepatocellular carcinoma (HCC) cases in order to assess their possible relationship to prognosis. METHODS: We performed an immunohistochemical study using tissue microarrays (containing more than 260 cancer specimens, from 31 HCC patients and controls) to determine the presence of specif ic antibodies against AR, ER, PgR and ApoD, correlating their findings with several clinico-pathological and biological variables. The staining results were categorized using a semi-quantitive score based on their intensity, and the percentage of immunostained cells was measured. RESULTS: A total of 21 liver tumors (67.7%) were positive for AR; 16 (51.6%) for ER; 26 (83.9%) for PgR and 12 (38.7%) stained for ApoD. We have found a wide variability in the immunostaining score values for each protein, with a median (range) of 11.5 (11.5-229.5) for AR; 11.1 (8.5-65) for ER; 14.2 (4-61) for PgR; and 37.7 (13.8-81.1) for ApoD. A history of heavy ethanol consumption, correlated positively with AR and PgR and negatively with ER status. HCV chronic infection also correlated positively with AR and PgR status. However, the presence of ApoD immunostaining did not correlate with any of these variables. Tumors with a positive immuno-staining for PgR showed a better prognosis. CONCLUSION: Our results indicate a moderate clinical value of the steroid receptor status in HCC, emphasizing the need to perform further studies in order to evaluate the possible role of new hormonal-based therapies.FJ Vizoso M Rodriguez A Altadill ML González-Diéguez A Linares LO González S Junquera F Fresno-Forcelledo MD Corte L Rodrigo 2007World Journal of Gastroenterology2007,13,23:11
2Prospective randomized controlled trial evaluating cap-assisted colonoscopy vs standard colonoscopy显示文摘AIM: To study the significance of cap-fitted colonoscopy in improving cecal intubation time and polyp detection rate. METHODS: This study was a prospective randomized controlled trial conducted from March 2008 to February 2009 in a tertiary referral hospital at Sydney. The primary end point was cecal intubation time and the secondary endpoint was polyp detection rate. Consecutive cases of total colonoscopy over a 1-year period were recruited. Randomization into either standard colonoscopy (SC) or cap-assisted colonoscopy (CAC) was performed after consent was obtained. For cases randomized to CAC, one of the three sizes of cap was used: D-201-15004 (with a diameter of 15.3 mm), D-201-14304 (14.6 mm) and D-201-12704 (13.0 mm). All of these caps were produced by Olympus Medical Systems, Japan. Independent predictors for faster cecal time and better polyp detection rate were also determined from this study. RESULTS: There were 200 cases in each group. There was no signif icant difference in terms of demographic characteristics between the two groups. CAC, when compared to the SC group, had no signif icant difference in terms of cecal intubation rate (96.0% vs 97.0%, P = 0.40) and time (9.94 ± 7.05 min vs 10.34 ± 6.82 min, P = 0.21), or polyp detection rate (32.8% vs 31.3%, P = 0.75). On the subgroup analysis, there was no significant difference in terms of cecal intubation time by trainees (88.1% vs 84.8%, P = 0.40), ileal intubation rate (82.5% vs 79.0%, P = 0.38) or total colonoscopy time (23.24 ± 13.95 min vs 22.56 ± 9.94 min, P = 0.88). On multivariate analysis, the independent determinants of faster cecal time were consultant-performed procedures (P < 0.001), male patients (P < 0.001), non-usage of hyoscine (P < 0.001) and better bowel preparation (P = 0.01). The determinants of better polyp detection rate were older age (P < 0.001), no history of previous abdominal surgery (P = 0.04), patients not having esophagogastroduodenoscopy in the same setting (P = 0.003), trainee-performed procedures (P = 0.01), usage of hyoscine (P = 0.01) and procedures performed for polyp follow-up (P = 0.01). The limitations of the study were that it was a single-center experience, no blinding was possible, and there were a large number of endoscopists. CONCLUSION: CAC did not signif icantly different from SC in term of cecal intubation time and polyp detection rate.Hoi-Poh Tee Crispin Corte Hamdan Al-Ghamdi Emilia Prakoso John Darke Raman Chettiar Wassim Rahman Scott Davison Sean P Griffin Warwick S Selby Arthur J Kaffes 2010World Journal of Gastroenterology2010,16,31:10
3Differences in standing balance between patients with diplegic and hemiplegic cerebral palsy显示文摘Maintaining standing postural balance is important for walking and handling abilities in patients with cerebral palsy.This study included 23 patients with cerebral palsy(seven with spastic diplegia and16 with spastic hemiplegia),aged from 7 to 16 years of age.Standing posture balance measurements were performed using an AMTI model OR6-7 force platform with the eyes open and closed.Patients with diplegic cerebral palsy exhibited greater center of pressure displacement areas with the eyes open and greater center of pressure sway in the medial-lateral direction with the eyes open and closed compared with hemiplegic patients.Thus,diplegic patients exhibited weaker postural balance control ability and less standing stability compared with hemiplegic cerebral palsy patients.Valeska Gatica Rojas Guillermo Méndez Rebolledo Eduardo Guzman Muoz Natalia Ibarra Cortés Caterine Berrios Gaete Carlos Manterola Delgado 2013Neural Regeneration Research2013,8,26:6
4New approaches in angiogenic targeting for colorectal cancer显示文摘Colorectal carcinoma (CRC) is one of the leading causes of cancer death worldwide. In the last decade, the addition of irinotecan and oxaliplatin to standard fluorouracil-based chemotherapy regimens have set the new benchmark of survival for patients with metastatic CRC at approximately 20 mo. Despite these advances in the management of CRC, there is a strong medical need for more effective and well-tolerated therapies. The dependence of tumor growth and metastasis on blood vessels makes angiogenesis a rational target for therapy. One of the major pathways involved in this process is the vascular endothelial growth factor (VEGF) and its receptors (VEGFR). In 2004, the first agent targeting angiogenesis, bevacizumab (BV), was approved as an adjunct to first-line cytotoxic treatment of metastatic CRC. The role of BV as part of adjuvant treatment and in combination with other targeted therapies is the subject of ongoing trials. However, BV is associated with an increase in the risk of arterial thromboembolic events, hypertension and gastrointestinal perforations and its use must be cautious. Novel VEGFR TK inhibitors with different ranges of nanomolar potencies, selectivities, and pharmacokinetic properties are entering phase Ⅲ trials for the treatment of cancer. Conversely, one of these novel agents, vatalanib, has been shown not to confer survival benefit in first and second-line treatment of advanced CRC. The basis of these findings is being extensively evaluated. Ongoing and new well-designed trials will define the optimal clinical application of the actual antiangiogenic agents, and, on the other hand, intensive efforts in basic research will identify new agents with different antiangiogenic approaches for the treatment of CRC. In this review we discuss and highlight current and future approaches in angiogenic targeting for CRC.Aleix Prat Esther Casado Javier Cortés 2007World Journal of Gastroenterology2007,13,44:6
5CuPd催化剂调节中间反应能垒提高电催化CO_(2)生成二碳产物的选择性显示文摘过度的碳排放已造成了严重的全球环境问题,电催化CO_(2)还原是一种利用间歇性过剩电能将CO_(2)转化为有价值的化学物质的有效策略.在多种CO_(2)还原产物中,二碳(C2)产物(如乙烯、乙醇)因其比一碳产物(如甲酸、甲烷、甲醇)具有更高的能量密度而备受关注.Cu是唯一能用电化学方法将CO_(2)转化为多碳产物的单金属催化剂.如何提高Cu基催化剂上CO_(2)还原为C2产物的效率已引起了极大关注.电催化还原CO_(2)生成C2产物有两个重要步骤:一是参与碳碳偶联反应的CO*中间体的量(*代表中间体吸附在基底表面),二是碳碳偶联步骤的能垒.对于Cu单金属催化剂,虽然其表面碳碳偶联步骤的能垒相对较低,但是Cu对CO_(2)的吸附能力和CO_(2)*加氢能力并不高,导致在Cu表面不能生成足量的CO*中间体参与碳碳偶联反应,因而对C2产物的选择性和活性并不理想.与Cu单金属催化剂相反,在Pd单金属催化剂表面,CO*中间体的形成具有超快的反应动力学,但是CO*易在Pd表面中毒且后续碳碳偶联步骤的能垒极高,使其表面不能生成C2产物.为了充分发挥Cu(碳碳偶联步骤能垒较低)和Pd(CO*形成具有超快反应动力学)的双重优势,本文构建了一种紧密的CuPd(100)界面,以调节中间反应能垒,从而提高C2产率.密度泛函理论(DFT)计算表明,CuPd(100)界面增强了CO_(2)的吸附,且降低了CO_(2)*加氢步骤的能垒,从而能够催化生成更多的CO*中间体参与碳碳偶联反应.且CuPd(100)界面上CO_(2)还原为C2产物的电位决定步骤能垒为0.61 eV,低于Cu(100)表面的(0.72 eV).本文采用了一种简便的湿化学法制备了CuPd(100)界面催化剂.X射线衍射和X射线光电子能谱测试以及扩展X射线吸收精细结构光谱结果表明,合成的是相分离的CuPd双金属催化剂,而非CuPd合金催化剂.同时高分辨透射电镜可以观察到清晰的CuPd(100)界面.由此可见,本文成功合成了CuPd(100)界面催化剂.程序升温脱附实验结果表明,CuPd(100)界面对CO_(2)和CO*的吸附比Cu强,结果与理论预测一致.气体传感实验结果表明,CuPd(100)界面CO_(2)*加氢能力比Cu强.为评估CuPd(100)界面催化剂的催化活性,进行了CO_(2)电化学还原实验.结果表明,在0.1 mol/L的KHCO3电解液中,CuPd(100)界面催化剂在‒1.4 VRHE下,C2产物的法拉第效率为50.3%±1.2%,是同电位下Cu催化剂的(23.6%±1.5%)的2.1倍,C2产物的选择性是Cu催化剂的2.4倍,且具有更高的电流密度和更大的电化学活性面积.本文通过调控中间反应能垒以合理设计铜基CO_(2)还原电催化剂提供了参考.朱莉 林翌阳 刘康 Emiliano Cortés 李红梅 胡俊华 Akira Yamaguchi 刘小良 Masahiro Miyauchi 傅俊伟 刘敏 2021Chinese Journal of Catalysis2021,42,9:4
6Beta-blocker therapy in elderly patients with renal dysfunction and heart failure显示文摘OBJECTIVE To assess the role of beta-blockers(BB)in patients with chronic kidney disease(CKD)aged≥75 years.METHODS AND RESULTS From January 2008 to July 2014,we included 390 consecutive patients≥75 years of age with ejection fraction≤35%and glomerular filtration rate(GFR)≤60 m L/min per 1.73 m^2.We analyzed the relationship between treatment with BB and mortality or cardiovascular events.The mean age of our population was 82.6±4.1 years.Mean ejection fraction was 27.9%±6.5%.GFR was 60-45 m L/min per 1.73 m^2 in 50.3%of patients,45-30 m L/min per 1.73 m^2 in 37.4%,and<30 m L/min per 1.73 m^2 in 12.3%.At the conclusion of follow-up,67.4%of patients were receiving BB.The median follow-up was28.04(IR:19.41-36.67)months.During the study period,211 patients(54.1%)died and 257(65.9%)had a major cardiovascular event(death or hospitalization for heart failure).BB use was significantly associated with a reduced risk of death(HR=0.51,95%CI:0.35-0.74;P<0.001).Patients receiving BB consistently showed a reduced risk of death across the different stages of CKD:stage IIIa(GFR=30-45 m L/min per 1.73 m^2;HR=0.47,95%CI:0.26-0.86,P<0.0001),stage IIIb(GFR 30-45 m L/min per 1.73 m^2;HR=0.55,95%CI:0.26-1.06,P=0.007),and stages IV and V(GFR<30 m L/min per 1.73 m~2;HR=0.29,95%CI:0.11-0.76;P=0.047).CONCLUSIONS The use of BB in elderly patients with HFr EF and renal impairment was associated with a better prognosis.Use of BB should be encouraged when possible.Juan Martínez-Milla Marcelino Cortés García Julia Anna Palfy Mikel Taibo Urquía Marta López Castillo Ana Devesa Arbiol Ana Lucía Rivero Monteagudo María Luisa Martín Mariscal Inés Jiménez-Varas Sem Briongos Figuero Juan Antonio Franco-Pelaéz JoséTuñón 2021Journal of Geriatric Cardiology2021,18,1:3
7Predictive clinical features of cardioembolic infarction in patients aged 85 years and older显示文摘Objective To assess predictive clinical factors of cardioembolic infarction in very old patients(85 years of age and older).Methods Prospective hospital-based stroke registry('The Sagrat Cor Hospital of Barcelona Stroke Registry')is an acute-care teaching hospital in Barcelona,Catalonia,Spain.From 956 first-ever cardioembolic stroke patients included in the stroke registry over a 24-year period,639 were younger than 85 years of age and 317 were 85 years or older(mean age:88.9 years).Demographics,clinical characteristics,risk factors and early outcome were compared.Predictors of cardioembolic infarction in the oldest age group were assessed by multivariate analyses.Results In a logistic regression model based on demographics,risk factors,clinical features and complications,female gender(odds ratio[OR]=1.74,95%confidence interval[CI]:1.27–2.39),heart failure(OR=2.27,95%CI:1.46–3.56),altered consciousness(OR=1.76,95%CI:1.28–2.42),and infectious complications(OR=2.01,95%CI:1.39–2.91)were predictors of cardioembolic stroke in the oldest age group.By contrast,heavy smoking,heart valve disease,hypertension,headache,early seizures,sensory deficit,and involvement of the posterior cerebral artery were independently associated with cardioembolic stroke in the younger group.Conclusions Identification of a differential clinical profile of cardioembolic stroke between patients aged 85 years or more and those younger than 85 years helps clinicians to the optimal management of ischemic infarction in the oldest segment of the population.Ana Maria Carbajo-García Jonatan Cortés AdriàArboix Joan Massons Laura Díez Enric Vergés Jordi Arboix-Alió Luís García-Eroles 2019Journal of Geriatric Cardiology2019,16,11:3
8Human chronic myeloid leukemia stem cells are insensitive to imatinib despite inhibition of BCR-ABL activity显示文摘Corbin Amie S Agarwal Anupriya Loriaux Marc Cortes Jorge Deininger Michael W Druker Brian J 2011Journal of Clinical Investigation2011,,1:3
9Management of Helicobacter pylori infection in Latin America: A Delphi technique-based consensus显示文摘AIM: To optimize diagnosis and treatment guidelines for this geographic region, a panel of gastroenterologists, epidemiologists, and basic scientists carried out a structured evaluation of available literature.METHODS: Relevant questions were distributed among the experts, who generated draft statements for consideration by the entire panel. A modified three-round Delphi technique method was used to reach consensus. Critical input was also obtained from representatives of the concerned medical community. The quality of the evidence and level of recommendation supporting each statement was graded according to United States Preventive Services Task Force criteria.RESULTS: A group of ten experts was established. The survey included 15 open-ended questions that were distributed among the experts, who assessed the articles associated with each question. The levels of agreement achieved by the panel were 50% in the first round, 73.3% in the second round and 100% in the third round. Main consensus recommendations included:(1) when available, urea breath and stool antigen test(HpSA) should be used for non-invasive diagnosis;(2) detect and eradicate Helicobacter pylori(H. pylori) in all gastroscopy patients to decrease risk of peptic ulcer disease, prevent o retard progression in patients with preneoplastic lesions, and to prevent recurrence in patients treated for gastric cancer;(3) further investigate implementation issues and health outcomes of H. pylorieradication for primary prevention of gastric cancer in high-risk populations;(4) prescribe standard 14-d triple therapy or sequential therapy for first-line treatment;(5) routinely assess eradication success post-treatment in clinical settings; and(6) select second- and third-line therapies according to antibiotic susceptibility testing.CONCLUSION: These achievable steps toward better region-specific management can be expected to improve clinical health outcomes.Antonio Rollan Juan Pablo Arab M Constanza Camargo Roberto Candia Paul Harris Catterina Ferreccio Charles S Rabkin Juan Cristóbal Gana Pablo Cortés Rolando Herrero Luisa Durán Apolinaria García Claudio Toledo Alberto Espino Nicole Lustig Alberto Sarfatis Catalina Figueroa Javier Torres Arnoldo Riquelme 2014World Journal of Gastroenterology2014,20,31:2
10Reduction of acute anterior dislocations of the shoulder without anaesthesia in the position of maximum muscular relaxation显示文摘V. Canales Cortés L. García-Dihinx Checa J. Rodriguez Vela 1989International Orthopaedics1989,,4:2
11TiO2-catalysed ozonation of raw Ebro river water显示文摘 Cortes S Sarasa J 2000Water Res2000,34,:1
12Imatinib mesylate (STI571) therapy for Philadelphia chromosome-positive chronic myelogenous leukemia in blast phase显示文摘Kantarjian HM Cortes J O'Brien S 2002Blood2002,99,10:1
13Impact of glomerular filtration rate on urinary BNP and NT-proBNP levels in heart failure显示文摘CORTS R PORTOLS M ROSELL-LLETE 2012Pep-tides2012,33,:1
14If You Look at…:Lexical Bundles in University Teaching and Textbooks显示文摘Biber D Conrad S Cortes V 0,,03:1
15Long - term follow - up of pa- tients with hypereosinophilic syndrome treated with Alemtuzum- ab,an anti- CD52 antibody 显示文摘Strati P Cortes J Faded S 2013Clinical lymphoma Myeloma Leuke2013,13,3:1
16Relationship of ghrelin,acid uric and proinflammatory adipocytokines in different degrees of obesity or diabetes显示文摘Cruz-Domínguez MP Cortés DH Zarate A 2014Int J Clin Exp Med2014,7,5:1
17Outcome with the hyper-CVAD regimens in lymphoblastic lymphoma显示文摘THOMAS D A O'BRIEN S CORTES J 2004Blood2004,104,:1
18Clofarabine and cytarabine combination as induction therapy for acute myeloid leukemia (AML) in patients 50 years of age or older显示文摘Faderl S Verstovsek S Cortes J 2006Blood2006,108,1:1
19The recombination signal sequence -binding protein RBP- 2N functions as a transcriptional repressor 显示文摘Dou S Zeng X Cortes P 1994Mol Cell Biol1994,14,5:1
20Comparison between rotary and manual instrumentation in primary teeth显示文摘Crespo S Cortes O Garcia C 2008J Clin PediatrDent2008,32,4:1
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