75 research outputs found
Development and assessment of key skills in undergraduate students: An action-research experience
Employers look for professionals able to work in a team, able to approach problems, with the capacity to analyze and resolve problems, under the constant renewal of knowledge and competencies. In this paper, a group of University teachers from different areas of knowledge presents an experience to introduce key employability skills in the higher education students’ curricula. This work has been developed under the action research scope. The first goal was to make an analysis of terms referred to key skills, generating an integrated denomination for each competency. The elaboration of general templates for key skills is proposed here as a useful tool that provides information about development, assessment and marking of each skill. Different types of rubrics and assessment templates, used during this experience, are presented.DOI: 10.18870/hlrc.v2i1.3
Opioid use disorders national registries and opioids sales registries : a 10-year prevalence study from a middle-income country
Objectives: (1) To estimate the prevalence, geographic distribution, and demographic characteristics of patients diagnosed with mental and behavioral disorders due to the use of opioids in Colombia, between 2009 and 2018. (2) To describe the opioid sales trends in Colombia over the last few years.
Methods: We conducted an observational study analyzing information from Individual National Registry of Health Services and the Colombian official database for pharmaceuticals prices and quantities sold. The included ICD-10 codes were mental and behavioral disorders due to the use of opioids (F11) codes subdivisions.
Results: 12,557 cases of mental and behavioral disorders due to opioid use were reported, with a rate of 3.0 per 100,000 inhabitants for the studied period. Men represented 74.2 percent, with a male:female ratio of 2.9:1. The highest prevalence was found between 20 and 24 years, in the northwest Colombian area. A progressive increase in the total number of opioid units sold during the study period was found, and the most frequently sold opioids were tramadol (55 percent) and codeine (20 percent).
Conclusions: Recognition of opioid use disorders has increased in the last 10 years; it affects more males than females, mostly young adults, and is higher in certain affluent regions of Colombia. We found a progressive annual increase in the sales of opioids in the country, which could be related to the increase in the rate of registries. Studies that have analyzed opioid abuse in Latin America are limited, and further studies are needed to evaluate this situation in middle-income countries from the region.Revista Internacional - Indexad
Preclinical evaluation of the safety and potency of neural stem cells from the germinal zone (Gz-NSC) for the treatment of intraventricular hemorrhage (IVH) consequences.
Motivation: Intraventricular hemorrhage (IVH) is a common cause of morbidity and mortality in premature infants with no available treatment. After IVH, there is a rupture of the germinal zone into the ventricles that entail the loss of neural stem cells (Gz-NSC). These Gz-NSC can be retrieved from the cerebrospinal fluid (CSF) of IVH patients, obtained after the therapeutic neuroendoscopic lavage performed in these patients to decrease intracranial pressure and that is usually discarded. We have found that Gz-NSC have the potential to differentiate into neuroblasts, oligodendrocyte precursors and few astrocytes when grafted into human brain organoids from iPSCs and mouse brains (1,2). We are evaluating the safety and efficacy profile of CSF-derived Gz-NSC in order to develop a cell therapy for IVH patients.Methods: To examine the differentiation potency of Gz-NSC, we used immunofluorescence assays, fluorescence microspy techniques and computer analysis (ImageJ) to expand previous data, increase sample size, and quantify cell differentiation of grafted Gz-NSC cells in mouse brains and human brain organoids derived from iPSCs.To study the safety profile, flow cytometry assays were carried on to analyze Gz-NSC cell proliferation (Ki67) and immunogenicity (CD80,CD86,CD40, major histocompatibility complex class II (MHC-II)).Results: Based on the immunofluorescence assays, we have found less cells expressing doublecortin, an immature neural protein, and more cells expressing parvalbumin, an interneuron marker, in human brain organoids compared to animal models, suggesting that host can influence cell fate.On the other hand, in order to study the immunogenicity of the Gz-NSC (safety profile), we have analyzed the expression of MHC-II and co-stimulatory molecules (CD80, CD86, CD40) in Gz-NSC before and after in vitro differentiation. Flow cytometry assays revealed Gz-NSC do not express co-stimulatory molecules and express different levels of MHC-II that are reduced when differentiated in vitro, which decreases the probability of an immune response in a future Gz-NSC based cell therapyConclusions: Taking into account that Gz-NSC have the potency to differentiate to a wide range of cerebral cell linages in both, human organoids and animal models, and are weakly immunogenic, an autologous Gz-NSC cell therapy could be a promising opportunity for IVH patients to overcome some of the neurocognitive problems associated to their condition
Development and assessment of key skills in undergraduate students: An action-research experience
Employers look for professionals able to work in a team, able to approach problems, with the capacity to analyze and resolve problems, under the constant renewal of knowledge and competencies. In this paper, a group of University teachers from different areas of knowledge presents an experience to introduce key employability skills in the higher education students’ curricula. This work has been developed under the action research scope. The first goal was to make an analysis of terms referred to key skills, generating an integrated denomination for each competency. The elaboration of general templates for key skills is proposed here as a useful tool that provides information about development, assessment and marking of each skill. Different types of rubrics and assessment templates, used during this experience, are presented.DOI: 10.18870/hlrc.v2i1.3
Yellow fever in Colombia : from public calamity to neglected disease
Desde su llegada al país a mediados del siglo XVII, la fiebre amarilla jugó un papel importante en la historia patria, primero con epidemias en los puertos del Caribe, y luego, con la navegación a vapor, remontando los ríos principales, sobre todo el Magdalena. Tanto el descubrimiento de los vectores involucrados en la transmisión como el desarrollo de la vacuna delegaron la preocupación a un segundo plano. Los brotes epidémicos de fiebre amarilla, esporádicos y en regiones apartadas, siguieron ocurriendo, para recrudecerse en 2016, en paralelo con lo que ocurre en países vecinos como Perú y Brasil. El vector principal, el Aedes aegypti, involucrado en la transmisión de otros arbovirus, se adapta y se extiende en muchos entornos urbanos del continente. Se cuenta, sin embargo, con una vacuna de relativo bajo costo y de alta efectividad que podría contribuir a la erradicación de la enfermedad.Artículo especial55-59Since its arrival to Colombia in the middle XVII century, yellow fever played an important role in its history; first with epidemics in the Caribbean ports, and later, when steamboats became available, by navigating upstream the Magdalena River. Both the discovery of the vectors involved in its transmission as well as the development of an effective vaccine led concerns about the disease to a secondary plane. Epidemic outbreaks of yellow fever continued occurring, particularly in very distant regions and also with prolonged time intervals. However, since 2016 there has been a recrudescence of such outbreaks, in parallel with what is going in our neighbor countries, Peru and Brazil. The main vector, Aedes aegypti, is also involved in the transmission of other arbovirus infections, and it is capable of adapting and extending its presence in many urban areas in South America. Nonetheless, a low-cost and highly effective vaccine is available, which may contribute to eradicate the disease
The effect of almond intake on cardiometabolic risk factors, inflammatory markers, and liver enzymes: A systematic review and meta‐analysis
Almond intake may be correlated with improvements in several cardiometabolic parameters, but its effects are controversial in the published literature, and it needs to be comprehensively summarized. We conducted a systematic search in several international electronic databases, including MEDLINE, EMBASE, Scopus, Web of Science, Cochrane Central Register of Controlled Trials, and until April 2021 to identify randomized controlled trials that examined the effects of almond consumption on cardiometabolic risk factors, inflammatory markers, and liver enzymes. Data were pooled using the random-effects model method and presented as standardized mean differences (SMDs) with 95% confidence intervals (CIs). Twenty-six eligible trials were analyzed (n = 1750 participants). Almond intake significantly decreased diastolic blood pressure, total cholesterol, triglyceride, low-density lipoprotein (LDL), non-high-density lipoprotein (HDL), and very LDL (p .05). The current body of evidence supports the ingestion of almonds for their beneficial lipid-lowering and antihypertensive effects. However, the effects of almonds on antiinflammatory markers, glycemic control, and hepatic enzymes should be further evaluated via performing more extensive randomized trials.info:eu-repo/semantics/publishedVersio
Workplace interventions to reduce the risk of SARS-CoV-2 infection outside of healthcare settings
This is a protocol for a Cochrane Review (intervention). The objectives are as follows:
To assess the benefits and harms of interventions in non‐healthcare‐related workplaces to reduce the risk of SARS‐CoV‐2 infection relative to other interventions or no intervention
Extracellular Vesicles Released by Leishmania (Leishmania) amazonensis Promote Disease Progression and Induce the Production of Different Cytokines in Macrophages and B-1 Cells
The extracellular vesicles (EVs) released by Leishmania can contribute to the establishment of infection and host immunomodulation. In this study, we characterized the shedding of EVs from Leishmania (Leishmania) amazonensis promastigotes. This species is the causative agent of cutaneous leishmaniasis, and its role during interactions with bone marrow-derived macrophages (BMDMs) and peritoneal B-1 cells was evaluated. Leishmania amazonensis promastigotes cultivated in vitro at different times and temperatures spontaneously released EVs. EVs were purified using size-exclusion chromatography (SEC) and quantitated by nanoparticle tracking analysis (NTA). NTA revealed that the average size of the EVs was approximately 180 nm, with concentrations ranging from 1.8 × 108 to 2.4 × 109 vesicles/mL. In addition, the presence of LPG and GP63 were detected in EVs obtained at different temperatures. Naïve BMDMs stimulated with EVs exhibited increased IL-10 and IL-6 expression. However, incubating B-1 cells with parasite EVs did not stimulate IL-10 expression but led to an increase in the expression of IL-6 and TNFα. After 7 weeks post-infection, animals infected with L. amazonensis promastigotes in the presence of parasite EVs had significant higher parasite load and a polarization to Th2 response, as compared to the group infected with the parasite alone. This work demonstrated that EVs isolated from L. amazonensis promastigotes were able to stimulate macrophages and B-1 cells to express different types of cytokines. Moreover, the immunomodulatory properties of EVs probably contributed to an increase in parasite burden in mice. These findings suggest that the functionality of L. amazonensis EVs on immune system favor of parasite survival and disease progression
Loss of humoral response 3 months after SARS-CoV-2 vaccination in the CKD spectrum:the multicentric SENCOVAC study
Safety and preliminary efficacy on cognitive performance and adaptive functionality of epigallocatechin gallate (EGCG) in children with Down syndrome. A randomized phase Ib clinical trial (PERSEUS study)
Purpose: Although some caregivers are using epigallocatechin gallate (EGCG) off label in hopes of improving cognition in young adults with Down syndrome (DS), nothing is known about its safety, tolerability, and efficacy in the DS pediatric population. We aimed to evaluate safety and tolerability of a dietary supplement containing EGCG and if EGCG improves cognitive and functional performance. Methods: A total of 73 children with DS (aged 6-12 years) were randomized. Participants received 0.5% EGCG (10 mg/kg daily dose) or placebo for 6 months with 3 months follow up after treatment discontinuation. Results: In total, 72 children were treated and 66 completed the study. A total of 38 participants were included in the EGCG group and 35 in the placebo group. Of 72 treated participants, 62 (86%) had 229 treatment-emergent adverse events (AEs). Of 37 participants in the EGCG group, 13 (35%) had 18 drug-related treatment-emergent AEs and 12 of 35 (34%) from the placebo group had 22 events. In the EGCG group, neither severe AEs nor increase in the incidence of AEs related to safety biomarkers were observed. Cognition and functionality were not improved compared with placebo. Secondary efficacy outcomes in girls point to a need for future work. Conclusion: The use of EGCG is safe and well-tolerated in children with DS, but efficacy results do not support its use in this population. (C) 2022 The Authors. Published by Elsevier Inc. on behalf of American College of Medical Genetics and Genomics
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