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1.
BMC Med Educ ; 24(1): 496, 2024 May 03.
Article in English | MEDLINE | ID: mdl-38702656

ABSTRACT

Making health science students aware of the importance of basic science knowledge for professional practice is a major educational challenge, especially during the early years of preclinical courses. Here, using an integrated curricular approach, we analyze whether Work Station Learning Activities (WSLA), which combine active learning methodologies for teaching basic science in clinical scenarios, can help to develop deeper learning and student engagement. In order to increase student motivation, we evaluated the effectiveness of WSLA using statistical analyses and an observation tool based on the ICAP (Interactive, Constructive, Active, and Passive) framework, which categorizes learning tasks based on the nature of student engagement. Statistical analyses revealed positive correlations between the different summative evaluations along the development of the activities, indicating the learning process inherent to WSLA progression and affirming the positive influence of WSLA on academic outcomes. Comparing the pre- and post-tests, students scored significantly higher on the post-test (statistically significant p < 0.001). WSLA promotes both constructivist and interactive learning, as validated by its alignment with the ICAP model. The study examines student engagement through systematic observation, revealing a relationship between student engagement and final grades. Students who exhibit constructive learning consistently earn higher grades, emphasizing the positive impact of active engagement. Thus, passive behavior profiles show a significant proportion of fails (40%), while constructive profiles stand out as the sole recipients of the coveted excellent rating. Ultimately, this study contributes to our understanding of the effectiveness of WSLA in promoting active learning and enhancing student engagement within integrated health education curricula. It highlights the importance of active learning behaviors for academic success and suggests avenues for further research to optimize integrated teaching methodologies in medical education.


Subject(s)
Academic Performance , Curriculum , Problem-Based Learning , Humans , Educational Measurement , Health Education/methods , Motivation
2.
Front Physiol ; 14: 1212031, 2023.
Article in English | MEDLINE | ID: mdl-37492638

ABSTRACT

Introduction: Medical education should promote the development of skills and abilities that can be applied to real-world work performance. The aim of this study is to evaluate technical and methodological knowledge, as well as physician-patient communication skills, as one of the most important transversal competencies that a good physician should acquire; all this in a reliable, accurate and objective way. Methods: We present a rubric specifically designed and implemented for the evaluation of specific and transversal competencies in the physiology practical sessions, during the second year of the medical degree. The assessment consists in two evaluation tests: 1) a theoretical test that consists of multiple-choice questions. Students must demonstrate that they have acquired adequate theoretical knowledge (specific competency "to know"); 2) a practical test, in which students are evaluated by the rubric through the simulation of a medical consultation. Thus, demonstrating their ability to execute/apply what they have learned in class (specific competency "to know how to do"). They are also evaluated on the transversal competencies that we call "communication with the patient" (transversal competency "to know how to be there") and "dealing with the patient" (transversal competency "to know how to be"). Results: We evaluated whether there were differences in the grades obtained by students when the transversal competencies were not assessed (academic years 2017-2018 and 2018-2019; n = 289), and when the transversal competencies were assessed by applying the rubric in the academic years 2019-2020, 2021-2022, and 2022-2023 (n = 526). Furthermore, we present a student perception that supports the use of clinical simulation and our rubric as a good method within the competency learning process. Discussion: The acquisition of these competencies, starting from the first courses of undergraduate education, helps to raise the students' awareness in the development of a more humanized medicine, allowing a better response to the patients' needs. Our rubric, which clearly indicate the performance criteria, have become an excellent method to carry out the assessment of competencies, both for students and teachers, since they allow to obtain clear evidence of the level of acquisition and application of knowledge.

3.
PLoS One ; 15(8): e0236940, 2020.
Article in English | MEDLINE | ID: mdl-32756582

ABSTRACT

BACKGROUND: Moving towards a horizontal and vertical integrated curriculum, Work-Station Learning Activities (WSLA) were designed and implemented as a new learning instrument. Here, we aim to evaluate whether and how this specific learning model affects academic performance. To better understand how it is received by medical students, a mixed methods research study was conducted. METHODS: In the quantitative strand, two cohorts of first year students were compared: academic year 2015-2016 n = 320 with no exposure to WSLA, and academic year 2016-2017 n = 336 with WSLA. Learning objectives at different levels of Bloom's taxonomy were identified and performance evaluated from multiple-choice questions. In the qualitative strand, a total of six students were purposely selected considering academic performance and motivation, and submitted to semistructured interviews. RESULTS: Performance at both cohorts for learning objectives at lower levels of Bloom's taxonomy was similar (38.8 vs. 39.0%; p = 0.955). In contrast, students in the WSLA group outperformed significantly those not exposed for learning objectives involving upper levels (68.5 vs. 54.2%; p <0.001). A multivariate analysis confirmed that the probability of mastering the second (more complex) objective is 1.64 times higher in students with WSLA methodology (OR 95% CI, 1.15-2.34; p = 0.007) than with traditional methodology. In the interviews, students perceived the clinical scenario of WSLA as a motivator and recognized this methodology as a more constructive framework for understanding of complicated concepts. CONCLUSIONS: In summary, our mixed methods research supports WSLA as a strategy that promotes deep learning and has a positive impact on academic performance for learning objectives involving higher order thinking skills in medical curricula.


Subject(s)
Problem-Based Learning/methods , Cohort Studies , Curriculum , Female , Humans , Male , Universities , Young Adult
4.
J Cell Biol ; 218(7): 2294-2308, 2019 07 01.
Article in English | MEDLINE | ID: mdl-31171632

ABSTRACT

The podocyte slit diaphragm (SD), responsible for blood filtration in vertebrates, is a major target of injury in chronic kidney disease. The damage includes severe morphological changes with destabilization of SDs and their replacement by junctional complexes between abnormally broadened foot processes. In Drosophila melanogaster, SDs are present in nephrocytes, which filter the fly's hemolymph. Here, we show that a specific isoform of Polychaetoid/ZO-1, Pyd-P, is essential for Drosophila SDs, since, in pyd mutants devoid of Pyd-P, SDs do not form and the SD component Dumbfounded accumulates at ectopic septate-like junctions between abnormally aggregated nephrocytes. Reintroduction of Pyd-P leads to junctional remodeling and their progressive normalization toward SDs. This transition requires the coiled-coil domain of Pyd-P and implies formation of nonclathrin vesicles containing SD components and their trafficking to the nephrocyte external membrane, where SDs assemble. Analyses in zebrafish suggest a conserved role for Tjp1a/ZO-1 in promoting junctional remodeling in podocytes.


Subject(s)
Diaphragm/growth & development , Drosophila Proteins/genetics , Intercellular Junctions/genetics , Podocytes/metabolism , Tight Junction Proteins/genetics , Animals , Clathrin/genetics , Drosophila melanogaster/genetics , Drosophila melanogaster/growth & development , Humans , Kidney Glomerulus/growth & development , Kidney Glomerulus/metabolism , Mutant Proteins/genetics , Protein Isoforms/genetics , Zebrafish/genetics
5.
Rev. Fund. Educ. Méd. (Ed. impr.) ; 21(4): 215-222, jul.-ago. 2018. tab
Article in Spanish | IBECS | ID: ibc-179836

ABSTRACT

Las ciencias biomédicas han experimentado una gran revolución en un corto período. Este avance es posible a través del estudio continuado de los mecanismos moleculares, genéticos y fisiológicos de los procesos biológicos, y ello contribuye a una mejor comprensión del funcionamiento normal de nuestro cuerpo y establece el conocimiento de las bases de la patología. Esto implica que los profesionales de ciencias de la salud deben desarrollar competencias y capacidades especiales que les permitan establecer nexos dinámicos entre las ciencias básicas y su práctica profesional. El diseño curricular más adecuado para la formación en estas competencias y capacidades se logra a través del currículo integrado. El aprendizaje integrado es un proceso centrado en el alumno, mediante el cual se adquieren conocimientos de manera flexible e individualizada a largo plazo. En la Universidad Europea de Madrid hemos afrontado esta nueva necesidad utilizando un modelo de aprendizaje integrado de materias básicas indicado para abordar la integración curricular progresiva, y que hemos denominado WSLA (Work Stations Learning Activities). Se basa en una modificación del aprendizaje basado en equipos adaptada a las directrices europeas y españolas, especialmente indicada para los grados de ciencias de la salud. Utilizando el modelo WSLA podemos crear módulos de actividades de aprendizaje integrado adaptables a distintas situaciones, desde clases magistrales hasta gamificación o prácticas de laboratorio. Proponemos nuestro modelo WSLA como una opción flexible y escalable para adoptar la integración de manera escalonada como paso previo a la integración curricular completa


Biomedical sciences have faced a strong developmental shift in a short period of time. This advance has been boosted by the study of the molecular, genetic and physiological mechanisms of the biological processes. This has a direct effect on the better understanding of the normal functioning of our body and establishes the bases of pathology knowledge. Thus, health science professionals must develop new skills and abilities that allow them to establish links between basic sciences and their professional practice. The most appropriate curricular design for competency and capacity building is achieved through the integrated curriculum. Integrated learning is a student-centered process, through which knowledge is developed lifelong in a flexible and individualized manner. At the Universidad Europea de Madrid we have faced new demands by using a model of integrated learning of basic subjects especially suitable to achieve progressive curricular integration. We have named this new model WSLA (Work Stations Learning Activities) and it is based on a modification of the team based learning adapted to the European and Spanish guidelines especially indicated for the Degrees of Health Sciences. Using the WSLA model different modules of integrated learning activities can be created and adapted to different situations, including master classes, gamification or laboratory practices. We propose our WSLA model as a scalable and flexible option to adopt the stepwise integration as a stage prior to the complete curricular integration


Subject(s)
Humans , Education, Medical , Curriculum , Health Sciences/education , Learning , Students, Health Occupations , Problem-Based Learning , Problem-Based Learning/methods
6.
Development ; 141(2): 367-76, 2014 Jan.
Article in English | MEDLINE | ID: mdl-24335255

ABSTRACT

Drosophila nephrocytes are functionally homologous to vertebrate kidney podocytes. Both share the presence of slit diaphragms that function as molecular filters during the process of blood and haemolymph ultrafiltration. The protein components of the slit diaphragm are likewise conserved between flies and humans, but the mechanisms that regulate slit diaphragm dynamics in response to injury or nutritional changes are still poorly characterised. Here, we show that Dumbfounded/Neph1, a key diaphragm constituent, is a target of the Src kinase Src64B. Loss of Src64B activity leads to a reduction in the number of diaphragms, and this effect is in part mediated by loss of Dumbfounded/Neph1 tyrosine phosphorylation. The phosphorylation of Duf by Src64B, in turn, regulates Duf association with the actin regulator Dock. We also find that diaphragm damage induced by administration of the drug puromycin aminonucleoside (PAN model) directly associates with Src64B hyperactivation, suggesting that diaphragm stability is controlled by Src-dependent phosphorylation of diaphragm components. Our findings indicate that the balance between diaphragm damage and repair is controlled by Src-dependent phosphorylation of diaphragm components, and point to Src family kinases as novel targets for the development of pharmacological therapies for the treatment of kidney diseases that affect the function of the glomerular filtration barrier.


Subject(s)
Drosophila Proteins/metabolism , Drosophila melanogaster/metabolism , Glomerular Filtration Barrier/metabolism , Kidney Diseases/metabolism , Membrane Proteins/metabolism , Muscle Proteins/metabolism , Protein-Tyrosine Kinases/metabolism , Proto-Oncogene Proteins/metabolism , Animals , Animals, Genetically Modified , Cell Aggregation , Cell Line , Disease Models, Animal , Drosophila Proteins/chemistry , Drosophila Proteins/genetics , Drosophila melanogaster/genetics , Drosophila melanogaster/growth & development , Enzyme Activation , Glomerular Filtration Barrier/cytology , Humans , Kidney Diseases/etiology , Kidney Diseases/pathology , Membrane Proteins/chemistry , Membrane Proteins/genetics , Microscopy, Electron, Transmission , Muscle Proteins/chemistry , Muscle Proteins/genetics , Phosphorylation , Protein-Tyrosine Kinases/genetics , Proto-Oncogene Proteins/genetics , Tyrosine/chemistry
7.
PLoS Genet ; 7(7): e1002186, 2011 Jul.
Article in English | MEDLINE | ID: mdl-21811416

ABSTRACT

A central issue of myogenesis is the acquisition of identity by individual muscles. In Drosophila, at the time muscle progenitors are singled out, they already express unique combinations of muscle identity genes. This muscle code results from the integration of positional and temporal signalling inputs. Here we identify, by means of loss-of-function and ectopic expression approaches, the Iroquois Complex homeobox genes araucan and caupolican as novel muscle identity genes that confer lateral transverse muscle identity. The acquisition of this fate requires that Araucan/Caupolican repress other muscle identity genes such as slouch and vestigial. In addition, we show that Caupolican-dependent slouch expression depends on the activation state of the Ras/Mitogen Activated Protein Kinase cascade. This provides a comprehensive insight into the way Iroquois genes integrate in muscle progenitors, signalling inputs that modulate gene expression and protein activity.


Subject(s)
Drosophila Proteins/genetics , Drosophila melanogaster/genetics , Homeodomain Proteins/genetics , Muscles/metabolism , Transcription Factors/genetics , Animals , Animals, Genetically Modified , Base Sequence , Cell Line , Drosophila Proteins/metabolism , Drosophila melanogaster/cytology , Drosophila melanogaster/embryology , Embryo, Nonmammalian/embryology , Embryo, Nonmammalian/metabolism , Gene Expression Regulation, Developmental , Homeodomain Proteins/metabolism , In Situ Hybridization , Microscopy, Confocal , Mitogen-Activated Protein Kinases/metabolism , Muscle Development/genetics , Muscles/embryology , Nuclear Proteins/genetics , Nuclear Proteins/metabolism , Sequence Homology, Nucleic Acid , Signal Transduction/genetics , Transcription Factors/metabolism , ras Proteins/metabolism
8.
Cardiovasc Res ; 76(1): 51-60, 2007 Oct 01.
Article in English | MEDLINE | ID: mdl-17628514

ABSTRACT

OBJECTIVE: Antibodies specific for the beta1-adrenergic receptor (beta1AR) are highly prevalent in patients with idiopathic dilated cardiomyopathy (DCM) and known to contribute to the pathogenesis of heart failure, though the precise molecular mechanisms involved are largely unknown. METHODS: We have explored the effects of beta(1)AR autoantibodies obtained from DCM patients on extracellular signal-regulated kinase (ERK) activation in murine cardiomyocytes. RESULTS: We find that human beta(1)AR autoantibodies potently stimulate ERK1/2 in cardiac cells by using signalling pathways different from those triggered by the classic beta-agonist isoproterenol, also leading to a different pattern of activated ERK subcellular localization. The extent of ERK stimulation by endogenous cardiac beta(1)AR is markedly enhanced in the presence of both beta(1)AR-autoantibodies and isoproterenol. Interestingly, beta(1)AR-autoantibody-mediated ERK activation is not blocked by some betaAR antagonists used in the treatment of heart failure. CONCLUSIONS: Our results suggest that these antibodies elicit a distinct beta(1)AR active conformation that would lead to the engagement of signaling effectors different from those recruited by classic beta-agonists, a finding that could lead to better understanding of DCM pathogenesis and aid in designing diagnostic and therapeutic strategies.


Subject(s)
Autoantibodies/pharmacology , Cardiomyopathy, Dilated/immunology , MAP Kinase Signaling System/drug effects , Myocardium/immunology , Receptors, Adrenergic, beta-1/immunology , Receptors, Adrenergic, beta-2/immunology , Adrenergic beta-Agonists/pharmacology , Animals , Autoantibodies/blood , Cell Line , Cells, Cultured , Extracellular Signal-Regulated MAP Kinases/analysis , Extracellular Signal-Regulated MAP Kinases/metabolism , Humans , Isoproterenol/pharmacology , Mice , Receptors, Adrenergic, beta-1/genetics , Stimulation, Chemical , Transfection/methods
9.
Blood ; 110(8): 2916-23, 2007 Oct 15.
Article in English | MEDLINE | ID: mdl-17606763

ABSTRACT

Nitric oxide (NO) is essential for vascular homeostasis and is also a critical modulator of angiogenesis; however, the molecular mechanisms of NO action during angiogenesis remain elusive. We have investigated the potential relationship between NO and membrane type 1-matrix metalloproteinase (MT1-MMP) during endothelial migration and capillary tube formation. Endothelial NO synthase (eNOS) colocalizes with MT1-MMP at motility-associated structures in migratory human endothelial cells (ECs); moreover, NO is produced at these structures and is released into the medium during EC migration. We have therefore addressed 2 questions: (1) the putative regulation of MT1-MMP by NO in migratory ECs; and (2) the requirement for MT1-MMP in NO-induced EC migration and tube formation. NO upregulates MT1-MMP membrane clustering on migratory human ECs, and this is accompanied by increased degradation of type I collagen substrate. MT1-MMP membrane expression and localization are impaired in lung ECs from eNOS-deficient mice, and these cells also show impaired migration and tube formation in vitro. Inhibition of MT1-MMP with a neutralizing antibody impairs NOinduced tube formation by human ECs, and NO-induced endothelial migration and tube formation are impaired in lung ECs from mice deficient in MT1-MMP. MT1-MMP thus appears to be a key molecular effector of NO during the EC migration and angiogenic processes, and is a potential therapeutic target for NO-associated vascular disorders.


Subject(s)
Cell Movement/physiology , Endothelial Cells/enzymology , Matrix Metalloproteinase 14/metabolism , Neovascularization, Physiologic/physiology , Nitric Oxide Synthase Type III/metabolism , Animals , Blotting, Western , Cells, Cultured , Flow Cytometry , Humans , Mice , Microscopy, Fluorescence , Umbilical Cord
10.
Mol Biol Cell ; 17(11): 4666-74, 2006 Nov.
Article in English | MEDLINE | ID: mdl-16914520

ABSTRACT

We identify a new mechanism for the beta(1)-adrenergic receptor (beta(1)AR)-mediated regulation of human ether-a-go-go-related gene (HERG) potassium channel (Kv11.1). We find that the previously reported modulatory interaction between Kv11.1 channels and 14-3-3epsilon proteins is competed by wild type beta(1)AR by means of a novel interaction between this receptor and 14-3-3epsilon. The association between beta(1)AR and 14-3-3epsilon is increased by agonist stimulation in both transfected cells and heart tissue and requires cAMP-dependent protein kinase (PKA) activity. The beta(1)AR/14-3-3epsilon association is direct, since it can be recapitulated using purified 14-3-3epsilon and beta(1)AR fusion proteins and is abolished in cells expressing beta(1)AR phosphorylation-deficient mutants. Biochemical and electrophysiological studies of the effects of isoproterenol on Kv11.1 currents recorded using the whole-cell patch clamp demonstrated that beta(1)AR phosphorylation-deficient mutants do not recruit 14-3-3epsilon away from Kv11.1 and display a markedly altered agonist-mediated modulation of Kv11.1 currents compared with wild-type beta(1)AR, increasing instead of inhibiting current amplitudes. Interestingly, such differential modulation is not observed in the presence of 14-3-3 inhibitors. Our results suggest that the dynamic association of 14-3-3 proteins to both beta(1)AR and Kv11.1 channels is involved in the adrenergic modulation of this critical regulator of cardiac repolarization and refractoriness.


Subject(s)
14-3-3 Proteins/metabolism , Potassium Channels, Voltage-Gated/metabolism , Receptors, Adrenergic, beta-1/metabolism , Recombinant Proteins/metabolism , Animals , CHO Cells , Cricetinae , Cricetulus , Cyclic AMP-Dependent Protein Kinases/metabolism , Guinea Pigs , Heart/drug effects , Humans , Ion Channel Gating/drug effects , Isoproterenol/pharmacology , Mutant Proteins/metabolism , Mutation/genetics , Phosphorylation/drug effects , Protein Binding/drug effects , Time Factors
11.
Cardiovasc Res ; 69(1): 46-56, 2006 Jan.
Article in English | MEDLINE | ID: mdl-16288730

ABSTRACT

The G protein-coupled receptor kinases (GRKs) participate with arrestins in the regulation and signal propagation of multiple G protein-coupled receptors (GPCR) of key physiological and pharmacological relevance in the cardiovascular system. The complex mechanisms of regulation of GRK expression, degradation and function are being unveiled gradually. The levels of these kinases are known to change in pathological situations such as heart failure, hypertrophy and hypertension, and in animal models of these diseases. A better understanding of the mechanisms underlying these changes and of how these alterations participate in the triggering or progression of cardiovascular disease may contribute to the design of novel diagnostic and therapeutic strategies.


Subject(s)
Cardiovascular Diseases/enzymology , Isoenzymes/metabolism , Myocardium/enzymology , Receptors, G-Protein-Coupled/metabolism , Signal Transduction/physiology , beta-Adrenergic Receptor Kinases/metabolism , Animals , Cardiovascular Diseases/metabolism
12.
Neurobiol Aging ; 25(7): 853-9, 2004 Aug.
Article in English | MEDLINE | ID: mdl-15212839

ABSTRACT

To investigate the potential involvement of adrenergic signaling in Alzheimer's disease (AD) pathogenesis, we performed genetic and functional studies of genes initiating the cascade. We chose two functional single-nucleotide polymorphisms (SNPs) in the beta1-adrenergic receptor (ADRB1) and the G protein beta3 subunit (GNB3) genes, respectively, and analyzed their allelic frequencies in a case-control sample of AD. We found that the GNB3 T allele produces a significant risk for AD in individuals homozygous for the ADRB1 C allele, suggesting that the combined effect of both polymorphisms influences AD susceptibility. Interestingly, the co-expression of GNB3 T and ADRB1 C alleles, compared with GNB3 C and ADRB1 G, produced increased cAMP levels and MAPK activation following adrenergic stimulation of transfected human cell lines. Furthermore, the co-expression of these alleles also produced increases in APP expression. These data strongly indicate that the combination of GNB3 and ADRB1 polymorphisms produces AD susceptibility by changing the cell responsiveness to adrenergic stimulation, pointing to the modulation of brain adrenergic receptors as a potential target for novel AD therapeutic strategies.


Subject(s)
Alzheimer Disease/genetics , GTP-Binding Protein beta Subunits/genetics , Genetic Predisposition to Disease , Polymorphism, Single Nucleotide/genetics , Receptors, Adrenergic, beta-1/genetics , Aged , Alzheimer Disease/epidemiology , Amyloid beta-Protein Precursor/metabolism , Case-Control Studies , Cells, Cultured , Chi-Square Distribution , Cyclic AMP/metabolism , Gene Frequency , Humans , Logistic Models , Mitogen-Activated Protein Kinases/metabolism , Risk Factors , Spain/epidemiology , Transfection
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