Browsing by Author "Riquelme, A."
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- ItemA supramolecular cobalt-porphyrin-modified electrode, toward the electroreduction of CO2(2004) Ramírez Jofré, Galo; Lucero, M.; Riquelme, A.; Villagrán, M.; Costamagna, J.; Trollund, E.; Aguirre, M.J.
- ItemBeneficial effects of mineralocorticoid receptor blockade in experimental non-alcoholic steatohepatitis(2015) Pizarro, M.; Solís, Nancy; Quintero, P.; Barrera Martínez, Francisco José; Cabrera, D.; Rojas-de Santiago, P.; Arab Verdugo, Juan Pablo; Padilla, O.; Roa Strauch, Juan Carlos Enrique; Moshage, H.; Wree, A.; Inzaugarat, E.; Feldstein, A.; Fardella B., Carlos; Baudrand Biggs, René; Riquelme, A.; Arrese Jiménez, Marco
- ItemChemical metallation of poly-p-tetraaminophenylporphyrin films grown by cyclic voltammetry on conducting glass electrodes.(2004) Ramírez Jofré, Galo; Cornejo, G.; Lucero, M.; Riquelme, A.; Azocar, I.; Armijo, F.; Aguirre, M.J.; Trollund, E.
- ItemContribution of the ligand to the electroreduction of CO2 catalyzed by a cobalt(II) macrocyclic complex(2003) Isaacs Casanova, Mauricio; Canales Villalobos, Juan Carlos; Riquelme, A.; Lucero, M.; Aguirre, M.J.; Costamagna, J.
- ItemDevelopment and validation of the MEDUC-RX32 questionnaire, to evaluate teachers of postgraduate radiology programs(2014) Huete, Isidro; Julio, R.; Rojas, V.; Herrera Riquelme, Cristian Alberto; Padilla Pérez, Oslando; Solís, Nancy; Pizarro Rojas, Margarita Alicia; Etcheberry, L.; Sarfatis Feige, Alberto; Pérez, G.; Delfino, Alejandro; Muñoz, E.; Rivera, H.; Bitrán Carreño, Marcela; Riquelme, A.
- ItemElectrocatalytic oxidation of sulfite at polymeric iron tetra (4-aminophenyl) porphyrin - modified electrode(2004) Lucero, M.; Ramírez Jofré, Galo; Riquelme, A.; Azocar, I.; Isaacs Casanova, Mauricio; Armijo Mancilla, Juan Francisco; Forster, J.E.; Trollund, E.; Aguirre, M.J.; Lexa, D.
- ItemEvaluation of Radiology Teachers' Performance and Identification of the "Best Teachers" in a Residency Program: Mixed Methodology and Pilot Study of the MEDUC-RX32 Questionnaire(2016) Huete, Isidro; Julio, R.; Rojas, V.; Herrera Riquelme, Cristian Alberto; Padilla Pérez, Oslando; Solis, N.; Pizarro, M.; Etcheberry, L.; Sarfatis Feige, Alberto; Perez, G.; Diaz, L.; Delfino, Alejandro; Munoz, E.; Rivera, H.; Parra, D.; Bitrán Carreño, Marcela; Riquelme, A.
- ItemExploring Language Barriers to Evidence-based Health Care (EBHC) in Post-graduate Medical Students: A Randomised Trial(2007) Letelier Saavedra, Luz María; Zamarín Brocco, Nicolás Felipe; Andrade Anziani, Maricarmen Soledad; Gabrielli, L.; Caiozzi Apablaza, Gianella Caterina; Viviani García, Paola; Riquelme, A.Background: Understanding the written English language might be a barrier when teaching Evidence-based Health Care (EBHC) to Spanish-speaking physicians. Aim: To quantify the magnitude of this potential barrier. Method: Cochrane Review abstracts in English or in Spanish were randomly distributed among first-year residents at the Pontificia Universidad Catolica of Chile. Residents answered investigator-designed questionnaires to measure their comprehension while the time needed to complete the task was recorded. Results: Groups were similar at baseline. Mean score for those reading in Spanish was 11.9 ± 2.8 (range 5 to 18) compared to 10.5 ± 3.8 (range 1 to 17) for those reading in English (p=0.04). Low scores (£ 9) were twice as frequent for the English group than for the Spanish group (16.7% vs 34.7%; p=0.042). The time to complete the task was also longer for the group reading in English. Conclusion: Language should be taken into account when teaching EBHC to Spanish-speaking physicians.
- ItemHigh prevalence of clarithromycin resistance and effect on Helicobacter pylori eradication in a population from Santiago, Chile : cohort study and meta-analysis(2019) Arenas, A.; Serrano Berríos, Carolina Lourdes; Quinones, L.; Harris D., Paul R.; Sandoval Osses, Mauricio; Lavanderos, M.; Sepulveda, R.; Maquilon, S.; Echeverria, A.; Rios, C.; Fuentes-Lopez, E.; Rojas, L.; Jorquera, A.; Pizarro, M.; Camargo, M.C.; Riquelme, A.
- ItemHigh prevalence of undiagnosed liver cirrhosis and advanced fibrosis in type 2 diabetic patients(2016) Arab Verdugo, Juan Pablo; Barrera Martínez, Francisco José; Gallego C.; Valderas Igor, Juan Patricio; Uribe Arancibia, Sergio A.; Tejos Núñez, Cristián Andrés; Serrano, C.; Huete, Isidro; Liberona, J.; Labbé P.; Quiroga, T.; Benitez, Carlos; Irarrázaval Mena, Pablo; Riquelme, A.; Arrese Jiménez, Marco
- ItemIncidence and prevalence of hepatitis C virus infection in Chile.(2005) González, R.; Soza, A.; Hernández, V.; Pérez, R.M.; Alvarez, M.; Morales, A.; Arellano, M.; Riquelme, A.; Viviani, P.; Covarrubias, C.; Arrese, M.; Miquel, J.F.; Nervi, F.
- ItemInnovación docente: catorce años de experiencia en un curso teórico de pregrado en medicina(2020) Böhm, P.; Soffia, A.; Díaz, L.A.; Villagrán, I.; Pizarro, M.; Collins, L.M.; Riquelme, A.; Monrroy, H.
- ItemMoving Forward from the “Boot Camp Method” To Learning-Curve Development in Simulation-Based Paracentesis Training For Undergraduate Medical Students(2021) Inzunza, M.; Tejos, R.; Villagrán, I.; Fuentes, E.; Contreras, C.; Vela, J.; Pizarro, M.; Alseidi, A.; Varas, J.; Riquelme, A.
- ItemPreocupación por el bienestar de residentes, un tema presente en la Conferencia Latinoamericana en Educación de Residentes (LACRE) 2017(2017) Bitrán Carreño, Marcela; González, M.; Nitsche P.; Zúñiga Parada, Denisse Alejandra; Riquelme, A.
- ItemSignificant transfer of surgical skills obtained with an advanced laparoscopic training program to a laparoscopic jejunojejunostomy in a live porcine model: Feasibility of learning advanced laparoscopy in a general surgery residency(2012) Varas Cohen, Julian Emanuel; Mejía, R.; Riquelme, A.; Maluenda, F.; Buckel, E.; Salinas, J.; Martínez, J.; Aggarwal, R.; Jarufe, N.; Boza, C.
- ItemSimulated training program in abdominal paracentesis for undergraduate medical students,Programa de entrenamiento simulado en paracentesis abdominal para estudiantes de medicina de pregrado(2019) Tejos, R.; Chahuán, J.; Uslar, T.; Inzunza, M.; Villagrán, I.; Riquelme, V.; Padilla, O.; Pizarro, M.; Corvetto, M.; Varas, J.; Riquelme, A.Background and aims: Abdominal paracentesis is an area that every general physician should know about, and the current learning model is unsafe for patients. Simulation allows students to develop their skills prior to clinical confrontation with minimal risks. The aims of this study were to design and evaluate a paracentesis simulation workshop for undergraduate students.
- ItemWaning and boosting of antibody Fc-effector functions upon SARS-CoV-2 vaccination(SPRINGER INTERNATIONAL PUBLISHING AG, 2023) Tong, X.; McNamara, R. P.; Avendano, M. J.; Serrano, E. F.; Garcia-Salum, T.; Pardo-Roa, C.; Bertera, H. L.; Chicz, T. M.; Levican, J.; Poblete, E.; Salinas, E.; Munoz, A.; Riquelme, A.; Alter, G.; Medina, R. A.Efficiency of SARS-CoV-2 vaccines has long been attributed to the neutralising capacity of the antibodies that are produced upon prime-boost vaccinations. Here authors show that upon vaccination with CoronaVac and BNT162b2 vaccines in prime-boost regimens, antibodies with Fc-effector functions to enhance cellular and innate immunity are also produced, albeit with different kinetics., Since the emergence of SARS-CoV-2, vaccines targeting COVID-19 have been developed with unprecedented speed and efficiency. CoronaVac, utilising an inactivated form of the COVID-19 virus and the mRNA26 based Pfizer/BNT162b2 vaccines are widely distributed. Beyond the ability of vaccines to induce production of neutralizing antibodies, they might lead to the generation of antibodies attenuating the disease by recruiting cytotoxic and opsonophagocytic functions. However, the Fc-effector functions of vaccine induced antibodies are much less studied than virus neutralization. Here, using systems serology, we follow the longitudinal Fc-effector profiles induced by CoronaVac and BNT162b2 up until five months following the two-dose vaccine regimen. Compared to BNT162b2, CoronaVac responses wane more slowly, albeit the levels remain lower than that of BNT162b2 recipients throughout the entire observation period. However, mRNA vaccine boosting of CoronaVac responses, including response to the Omicron variant, induce significantly higher peak of antibody functional responses with increased humoral breadth. In summary, we show that vaccine platform-induced humoral responses are not limited to virus neutralization but rather utilise antibody dependent effector functions. We demonstrate that this functionality wanes with different kinetics and can be rescued and expanded via boosting with subsequent homologous and heterologous vaccination.