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1.
Drug Metab Dispos ; 41(1): 188-96, 2013 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-23091188

RESUMEN

Inhibition of the bile salt export pump (BSEP) can cause intracellular accumulation of bile acids and is a risk factor for drug-induced liver injury in humans. Antiretroviral protease inhibitors lopinavir (LPV) and ritonavir (RTV) are reported BSEP inhibitors. However, the consequences of LPV and RTV, alone and combined (LPV/r), on hepatocyte viability, bile acid transport, and endogenous bile acid disposition in rat hepatocytes have not been examined. The effect of LPV, RTV, and LPV/r on cellular viability and the disposition of [(3)H]taurocholic acid (TCA) and [(14)C]chenodeoxycholic acid (CDCA) was determined in sandwich-cultured rat hepatocytes (SCRH) and suspended rat hepatocytes. Lactate dehydrogenase and ATP assays revealed a concentration-dependent effect of LPV and RTV on cellular viability. LPV (5 µM), alone and combined with 5 µM RTV, significantly decreased [(3)H]TCA accumulation in cells + bile of SCRHs compared with control. LPV/r significantly increased [(3)H]TCA cellular accumulation (7.7 ± 0.1 pmol/mg of protein) compared with vehicle and 5 µM LPV alone (5.1 ± 0.7 and 5.0 ± 0.5 pmol/mg of protein). The [(3)H]TCA biliary clearance was reduced significantly by LPV and RTV and further reduced by LPV/r. LPV and RTV did not affect the initial uptake rates of [(3)H]TCA or [(14)C]CDCA in suspended rat hepatocytes. LPV (50 µM), RTV (5 µM), and LPV/r (5 and 50 µM/5 µM) significantly decreased the accumulation of total measured endogenous bile acids (TCA, glycocholic acid, taurochenodeoxycholic acid, glycochenodeoxycholic acid, and α/ß-tauromuricholic acid) in SCRH. Quantification of endogenous bile acids in SCRH may reveal important adaptive responses associated with exposure to known BSEP inhibitors.


Asunto(s)
Ácidos y Sales Biliares/metabolismo , Inhibidores de la Proteasa del VIH/farmacología , Hepatocitos/metabolismo , Lopinavir/farmacología , Ritonavir/farmacología , Animales , Radioisótopos de Carbono/metabolismo , Supervivencia Celular/efectos de los fármacos , Células Cultivadas , Inhibidores de la Proteasa del VIH/administración & dosificación , Lopinavir/administración & dosificación , Ratas , Ritonavir/administración & dosificación
2.
Acad Med ; 89(2): 236-43, 2014 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-24270916

RESUMEN

Recent calls for educational reform highlight ongoing concerns about the ability of current curricula to equip aspiring health care professionals with the skills for success. Whereas a wide range of proposed solutions attempt to address apparent deficiencies in current educational models, a growing body of literature consistently points to the need to rethink the traditional in-class, lecture-based course model. One such proposal is the flipped classroom, in which content is offloaded for students to learn on their own, and class time is dedicated to engaging students in student-centered learning activities, like problem-based learning and inquiry-oriented strategies. In 2012, the authors flipped a required first-year pharmaceutics course at the University of North Carolina Eshelman School of Pharmacy. They offloaded all lectures to self-paced online videos and used class time to engage students in active learning exercises. In this article, the authors describe the philosophy and methodology used to redesign the Basic Pharmaceutics II course and outline the research they conducted to investigate the resulting outcomes. This article is intended to serve as a guide to instructors and educational programs seeking to develop, implement, and evaluate innovative and practical strategies to transform students' learning experience. As class attendance, students' learning, and the perceived value of this model all increased following participation in the flipped classroom, the authors conclude that this approach warrants careful consideration as educators aim to enhance learning, improve outcomes, and fully equip students to address 21st-century health care needs.


Asunto(s)
Educación en Farmacia/métodos , Aprendizaje Basado en Problemas/métodos , Instrucción por Computador/métodos , Curriculum , Evaluación Educacional , Humanos , Enseñanza/métodos
3.
Am J Pharm Educ ; 77(5): 97, 2013 Jun 12.
Artículo en Inglés | MEDLINE | ID: mdl-23788808

RESUMEN

OBJECTIVE: To evaluate the impact of institutional initiatives to enhance recruitment of minority students as a strategy to increase diversity and inclusion. METHODS: The Office of Recruitment, Development, and Diversity Initiatives (ORDDI) was established and several initiatives were developed within the UNC Eshelman School of Pharmacy to promote student diversity and engagement. Applicant demographics and admission data were tracked from 2007-2012 to assess program performance and effectiveness. RESULTS: Over the 6-year period, 812 recruitment events were facilitated. Twenty-nine percent of the students admitted from 2007-2012 participated in 1 or more ORDDI recruitment programs prior to admission. Forty-two percent of this cohort were minorities. The overall average minority profile of students increased from 19% to 25% after establishing the ORDDI. CONCLUSIONS: To achieve student diversity and inclusion, a multifaceted effort is required, involving a continuum of institutional strategies, including innovative practice models and high impact programs.


Asunto(s)
Diversidad Cultural , Educación en Farmacia/métodos , Etnicidad , Grupos Minoritarios , Criterios de Admisión Escolar , Facultades de Farmacia , Estudiantes de Farmacia , Educación en Farmacia/estadística & datos numéricos , Etnicidad/estadística & datos numéricos , Humanos , Grupos Minoritarios/estadística & datos numéricos , North Carolina , Desarrollo de Programa , Evaluación de Programas y Proyectos de Salud , Criterios de Admisión Escolar/estadística & datos numéricos , Estudiantes de Farmacia/estadística & datos numéricos , Factores de Tiempo
4.
Am J Pharm Educ ; 77(9): 196, 2013 Nov 12.
Artículo en Inglés | MEDLINE | ID: mdl-24249858

RESUMEN

OBJECTIVE: To determine whether "flipping" a traditional basic pharmaceutics course delivered synchronously to 2 satellite campuses would improve student academic performance, engagement, and perception. DESIGN: In 2012, the basic pharmaceutics course was flipped and delivered to 22 satellite students on 2 different campuses. Twenty-five condensed, recorded course lectures were placed on the course Web site for students to watch prior to class. Scheduled class periods were dedicated to participating in active-learning exercises. Students also completed 2 course projects, 3 midterm examinations, 8 graded quizzes, and a cumulative and comprehensive final examination. ASSESSMENT: Results of a survey administered at the beginning and end of the flipped course in 2012 revealed an increase in students' support for learning content prior to class and using class time for more applied learning (p=0.01) and in the belief that learning key foundational content prior to coming to class greatly enhanced in-class learning (p=0.001). Significantly more students preferred the flipped classroom format after completing the course (89.5%) than before completing the course (34.6%). Course evaluation responses and final examination performance did not differ significantly for 2011 when the course was taught using a traditional format and the 2012 flipped-course format. Qualitative findings suggested that the flipped classroom promoted student empowerment, development, and engagement. CONCLUSION: The flipped pharmacy classroom can enhance the quality of satellite students' experiences in a basic pharmaceutics course through thoughtful course design, enriched dialogue, and promotion of learner autonomy.


Asunto(s)
Educación a Distancia/métodos , Educación en Farmacia/métodos , Aprendizaje Basado en Problemas/métodos , Estudiantes de Farmacia , Adulto , Curriculum , Evaluación Educacional , Femenino , Humanos , Internet , Masculino , Adulto Joven
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