393 research outputs found
Estrategias docentes para trabajar la narrativa digital en el aula de Primaria
Este trabajo pretende dar a conocer nuestra experiencia en el aula de 6º de Primaria del Colegio Jesús-María Fuensanta de la Ciudad de Valencia. Con esta estrategia docente pretendemos utilizar las storytelling como recurso educativo digital para ir más allá de las metodologías tradicionales. Debemos aprovechar el soporte digital para conectar con el planteamiento actual que los alumnos sean digitales. Por lo tanto, el objetivo principal es implementar las storytelling en el aula de 6º de Primaria a través de las TIC y analizar como influyen en el aprendizaje de los/as alumnos/as. Pretendemos también la construcción del conocimiento del alumnado de primaria desde la narración.This work aims to publicize our experience in the 6th grade classroom of the Jesús-María Fuensanta School in the City of Valencia. With this teaching strategy we intend to use storytelling as a digital educational resource to go beyond traditional methodologies. We must take advantage of digital support to connect with the current approach that students are digital. Therefore, the main objective is to implement storytelling in the 6th grade classroom through ICT and analyze how they influence students' learning. We also intend to build the knowledge of primary school students from the narrative.Se pretende desarrollar las competencias de comunicación a través de la narrativa digital o storytelling en la etapa de Primaria, y en concreto en el aula de sexto
Decreased glycogen synthase kinase-3 levels and activity contribute to Huntington's disease
Huntington's disease (HD) is a hereditary neurodegenerative disorder characterized by brain atrophy particularly in striatum leading to personality changes, chorea and dementia. Glycogen synthase kinase-3 (GSK-3) is a serine/threonine kinase in the crossroad of many signaling pathways that is highly pleiotropic as it phosphorylates more than hundred substrates including structural, metabolic, and signaling proteins. Increased GSK-3 activity is believed to contribute to the pathogenesis of neurodegenerative diseases like Alzheimer's disease and GSK-3 inhibitors have been postulated as therapeutic agents for neurodegeneration. Regarding HD, GSK-3 inhibitors have shown beneficial effects in cell and invertebrate animal models but no evident efficacy in mouse models. Intriguingly, those studies were performed without interrogating GSK-3 level and activity in HD brain. Here we aim to explore the level and also the enzymatic activity of GSK-3 in the striatum and other less affected brain regions of HD patients and of the R6/1 mouse model to then elucidate the possible contribution of its alteration to HD pathogenesis by genetic manipulation in mice. We report a dramatic decrease in GSK-3 levels and activity in striatum and cortex of HD patients with similar results in the mouse model. Correction of the GSK-3 deficit in HD mice, by combining with transgenic mice with conditional GSK-3 expression, resulted in amelioration of their brain atrophy and behavioral motor and learning deficits. Thus, our results demonstrate that decreased brain GSK-3 contributes to HD neurological phenotype and open new therapeutic opportunities based on increasing GSK-3 activity or attenuating the harmful consequences of its decrease
Specific targeting of the NRF2/β-TrCP axis promotes beneficial effects in NASH
Non-alcoholic steatohepatitis (NASH) is a common chronic liver disease that compromises liver function, for which there is not a specifically approved medicine. Recent research has identified transcription factor NRF2 as a potential therapeutic target. However, current NRF2 activators, designed to inhibit its repressor KEAP1, exhibit unwanted side effects. Alternatively, we previously introduced PHAR, a protein-protein interaction inhibitor of NRF2/β-TrCP, which induces a mild NRF2 activation and selectively activates NRF2 in the liver, close to normal physiological levels. Herein, we assessed the effect of PHAR in protection against NASH and its progression to fibrosis. We conducted experiments to demonstrate that PHAR effectively activated NRF2 in hepatocytes, Kupffer cells, and stellate cells. Then, we used the STAM mouse model of NASH, based on partial damage of endocrine pancreas and insulin secretion impairment, followed by a high fat diet. Non-invasive analysis using MRI revealed that PHAR protects against liver fat accumulation. Moreover, PHAR attenuated key markers of NASH progression, including liver steatosis, hepatocellular ballooning, inflammation, and fibrosis. Notably, transcriptomic data indicate that PHAR led to upregulation of 3 anti-fibrotic genes (Plg, Serpina1a, and Bmp7) and downregulation of 6 pro-fibrotic (including Acta2 and Col3a1), 11 extracellular matrix remodeling, and 8 inflammatory genes. Overall, our study suggests that the mild activation of NRF2 via the protein-protein interaction inhibitor PHAR holds promise as a strategy for addressing NASH and its progression to liver fibrosisThis research was funded by the Spanish Ministry of Economy and Competitiveness (MINECO) (grants PID2019-110061RB-I00, PID-2021-122766OB-100 and PDC2021-121421-I00, PDC2022-133765-I00, MCIN/AEI/10.13039/501100011033 and “ERDF A way of making Europe” by the European Union.), CIBERdem and CIBERned (ISCIII), and The Autonomous Community of Madrid (grant P2022/BMD-7230). RFG enjoyed a FPI contract of MINECO (FPI-2017). DCS is a holder of a FPI contract of MICINN (Ministry of Science and Innovation, FPI-2020, PRE2020-091886). JJV is holder of a FPU contract of MIU (Ministry of Universities, FPU2020, FPU20/03326
Potential use of deodorised water extracts: polyphenol-rich extract of Thymus pannonicus All. as a chemopreventive agent
Deodorised water extracts of aromatic plants are obtained as by-products of essential oil isolation and usually discarded as waste. However, phytochemical composition of these extracts encourages their further utilization as food additives or functional food ingredients. In this study we investigated phytochemical composition, antioxidant and in vivo antiproliferative activity of deodorised water extract of Thymus pannonicus All. (DWE). HPLC analysis revealed rosmarinic acid (RA) (71.11 +/- 1.54 mg/g) as the most abundant constituent of the extract, followed by salvianolic acid H (14.83 +/- 0.79 mg/g, calculated as RA). DWE exhibited pronounced antioxidant activity in vitro, in FRAP and DPPH tests (FRAP value: 7.41 mmol Fe/g and SC50: 3.80 mu g/g, respectively). Using the model of Ehrlich carcinoma cells in mice that were treated with DWE prior, at the time, and after tumour cells implantation, the tumour growth suppression and redox status of malignant cells (i.e., activities of antioxidant enzymes, level of glutathione and intensity of lipid peroxidation) were followed. DWE applied as pretreatment caused disturbance of antioxidant equilibrium as well as apoptosis/necrosis of up to 90% EAC cells. Results obtained in the present study revealed chemopreventive potential and possibility of T. pannonicus DWE usage. High content of RA and other phenolic compounds explains, at least in part, the observed effects
Anàlisis de les capacitats del mòdul Lliçó de Moodle per a la formació en les competències de l’aprenentatge basat en problemes (ABP)
Projecte bianual: 2014PID-UB/037Per fomentar l’autoaprenentatge formatiu i la presa de decisions, hem emprat una eina del Campus Virtual de la Universitat de Barcelona (basat en Moodle), el mòdul Lliçó, per dissenyar recursos amb una orientació pedagògica d’aprenentatge basat en problemes (ABP) de manera que alhora ens permetin recollir informació sobre les accions dels estudiants en el seu ús. Aquests recursos són de tres nivells diferents de complexitat i autonomia segons si les assignatures són de primer i segon nivell dels graus o si són de màster. Com a part de la recerca d’un ajut complementari s’han analitzat els resultats d’ús i s’han establert els criteris a partir dels quals decidim si les eines són adequades per assolir els resultats d’aprenentatge esperats (ja que ens informen del progrés dels estudiants i avaluen aprenentatges i competències adquirides). De les anàlisis de resultats hem determinat els aspectes més interessants per refinar els recursos i fer-los més formatius, i també per aconseguir reduir l’esforç del professorat en l’activitat de tutoria de l’aprenentatge dels seus estudiants. Amb aquesta informació hem introduït modificacions en els recursos. La utilització posterior d’aquests recursos en el proper curs ens ha de permetre usar-los de base en un sistema d’anàlisi de l’aprenentatge (learning analytics) que serà objecte de futures sol·licituds d’ajuts.Ajut 2014 PID - UB / 03
Quality changes and shelf-life prediction of a fresh fruit and vegetables purple smoothie
The sensory, microbial and bioactive quality changes of untreated (CTRL) and mild heat−treated (HT; 90 ºC/45 s) smoothies were studied and modelled throughout storage (5, 15 and 25 ºC). The overall acceptability was better preserved in HT samples being highly correlated (hierarchical clustering) with the flavour. The sensory quality data estimated smoothie shelf−life (CTRL/HT) of 18/55 (at 5 ºC), 4.5/12 (at 15 ºC), 2.4/5.8 (at 25 ºC) days. The yeast and moulds growth rate was lower in HT compared to CTRL while a lag phase for mesophiles/psychrophiles was observed in HT−5/15 ºC. HT and 5 ºC−storage stabilized the phenolics content. FRAP reported the best correlation (R2=0.94) with the studied bioactive compounds, followed by ABTS (R2=0.81) while DPPH was the total antioxidant capacity method with the lowest adjustment (R2=0.49). Conclusively, modelling was used to estimate the shelf−life of a smoothie based on quality retention after a short time−high temperature heat treatment that better preserved microbial and nutritional quality during storage.The financial support of this research was provided by the Ministerio Español de Economía y Competitividad MINECO (Projects AGL2013−48830−C2−1−R and AGL2013−48993−C2−1−R) and by FEDER funds. G.A. González−Tejedor thanks to Panamá Government for the scholarship to carry out his PhD Thesis. A. Garre (BES−2014−070946) is grateful to the MINECO for awarding him a pre−doctoral grant. We are also grateful to E. Esposito and N. Castillejo for their skilful technical assistance
Patient preferences and treatment safety for uncomplicated vulvovaginal candidiasis in primary health care
<p>Abstract</p> <p>Background</p> <p>Vaginitis is a common complaint in primary care. In uncomplicated candidal vaginitis, there are no differences in effectiveness between oral or vaginal treatment. Some studies describe that the preferred treatment is the oral one, but a Cochrane's review points out inconsistencies associated with the report of the preferred way that limit the use of such data. Risk factors associated with recurrent vulvovaginal candidiasis still remain controversial.</p> <p>Methods/Design</p> <p>This work describes a protocol of a multicentric prospective observational study with one year follow up, to describe the women's reasons and preferences to choose the way of administration (oral vs topical) in the treatment of not complicated candidal vaginitis. The number of women required is 765, they are chosen by consecutive sampling. All of whom are aged 16 and over with vaginal discharge and/or vaginal pruritus, diagnosed with not complicated vulvovaginitis in Primary Care in Madrid.</p> <p>The main outcome variable is the preferences of the patients in treatment choice; secondary outcome variables are time to symptoms relief and adverse reactions and the frequency of recurrent vulvovaginitis and the risk factors. In the statistical analysis, for the main objective will be descriptive for each of the variables, bivariant analysis and multivariate analysis (logistic regression).. The dependent variable being the type of treatment chosen (oral or topical) and the independent, the variables that after bivariant analysis, have been associated to the treatment preference.</p> <p>Discussion</p> <p>Clinical decisions, recommendations, and practice guidelines must not only attend to the best available evidence, but also to the values and preferences of the informed patient.</p
El aprendizaje adaptativo de los estudiantes de un Grado de nueva creación: Análisis de su actividad en el Campus Virtual-UB
La docencia presencial de la Univ. Barcelona se apoya en su Campus virtual. Para promover el aprendizaje adaptativo, hemos analizado los Recursos/Actividades (número, tipo y frecuencia de uso) de 3 cohortes del Grado de Ciencias del Mar (30 Informes de actividad en total y 10 Registros de uso seleccionados). Predominan los Recursos (87%), pero se interactúa más en las Actividades. El análisis de los Registros ha permitido relacionar los resultados con el rendimiento, género u opcionalidad
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