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1.
Proc Natl Acad Sci U S A ; 121(7): e2310479121, 2024 Feb 13.
Artículo en Inglés | MEDLINE | ID: mdl-38335255

RESUMEN

Metabolic reprogramming is critical during clear cell renal cell carcinoma (ccRCC) tumorigenesis, manifested by accumulation of lipid droplets (LDs), organelles that have emerged as new hallmarks of cancer. Yet, regulation of their biogenesis is still poorly understood. Here, we demonstrate that MYC inhibition in ccRCC cells lacking the von Hippel Lindau (VHL) gene leads to increased triglyceride content potentiating LD formation in a glutamine-dependent manner. Importantly, the concurrent inhibition of MYC signaling and glutamine metabolism prevented LD accumulation and reduced tumor burden in vivo. Furthermore, we identified the hypoxia-inducible lipid droplet-associated protein (HILPDA) as the key driver for induction of MYC-driven LD accumulation and demonstrated that conversely, proliferation, LD formation, and tumor growth are impaired upon its downregulation. Finally, analysis of ccRCC tissue as well as healthy renal control samples postulated HILPDA as a specific ccRCC biomarker. Together, these results provide an attractive approach for development of alternative therapeutic interventions for the treatment of this type of renal cancer.


Asunto(s)
Carcinoma de Células Renales , Neoplasias Renales , Gotas Lipídicas , Proteínas Proto-Oncogénicas c-myc , Humanos , Carcinoma de Células Renales/patología , Línea Celular Tumoral , Regulación Neoplásica de la Expresión Génica , Glutamina/metabolismo , Neoplasias Renales/patología , Gotas Lipídicas/efectos de los fármacos , Gotas Lipídicas/metabolismo , Proteínas Proto-Oncogénicas c-myc/antagonistas & inhibidores , Proteínas Proto-Oncogénicas c-myc/metabolismo , Transducción de Señal , Regulación hacia Arriba , Proteína Supresora de Tumores del Síndrome de Von Hippel-Lindau/genética , Proteína Supresora de Tumores del Síndrome de Von Hippel-Lindau/metabolismo , Proteínas de Neoplasias/genética , Proteínas de Neoplasias/metabolismo
2.
Rev. esp. cir. oral maxilofac ; 45(1): 26-30, ene.-mar. 2023. ilus
Artículo en Español | IBECS | ID: ibc-220274

RESUMEN

Presentamos un caso clínico donde, utilizando implantes subperiósticos o supraóseos, es decir, estructuras metálicas tridimensionales personalizadas de titanio fabricadas de forma digital, hemos conseguido realizar dos objetivos a la vez: 1) la corrección de una severa deformidad facial, y 2) dotar a la paciente de fijaciones o implantes para la rehabilitación implantosoportada de su edentulismo maxilar completo. No tenemos constancia de ningún caso similar publicado en la literatura a día de hoy.Creemos que esta nueva técnica, relativamente sencilla, puede ser una alternativa a las cirugías complejas que involucran el empleo de complicados injertos óseos, con el consiguiente ahorro en tiempo y morbilidad para los pacientes que asocian hipoplasia maxilar y edentulismo con grave atrofia ósea. (AU)


We present a clinical case in which, using subperiosteal or supraosseous implants, that is to say, three-dimensional personalized metallic titanium structures manufactured digitally, we have managed to achieve two objectives at the same time: 1) correction of a severe facial deformity, and 2) furnish the patient with fixations or implants for the implant-supported rehabilitation of her complete maxillary edentulism. We are not aware of any similar case published in the literature to date.We believe that this new, relatively simple technique can be an alternative to complex surgeries that involve the use of complicated bone grafts, with the consequent savings in time and morbidity for patients who associate maxillary hypoplasia and edentulism with severe bone atrophy. (AU)


Asunto(s)
Humanos , Implantación Dental Subperióstica , Cirugía Ortognática , Trasplante Óseo/rehabilitación , Anomalías Congénitas , Maxilar/cirugía
5.
J Exp Clin Cancer Res ; 41(1): 226, 2022 Jul 19.
Artículo en Inglés | MEDLINE | ID: mdl-35850708

RESUMEN

BACKGROUND: Neuroblastoma (NB), a childhood tumor derived from the sympathetic nervous system, presents with heterogeneous clinical behavior. While some tumors regress spontaneously without medical intervention, others are resistant to therapy, associated with an aggressive phenotype. MYCN-amplification, frequently occurring in high-risk NB, is correlated with an undifferentiated phenotype and poor prognosis. Differentiation induction has been proposed as a therapeutic approach for high-risk NB. We have previously shown that MYCN maintains an undifferentiated state via regulation of the miR-17 ~ 92 microRNA cluster, repressing the nuclear hormone receptors (NHRs) estrogen receptor alpha (ERα) and the glucocorticoid receptor (GR). METHODS: Cell viability was determined by WST-1. Expression of differentiation markers was analyzed by Western blot, RT-qPCR, and immunofluorescence analysis. Metabolic phenotypes were studied using Agilent Extracellular Flux Analyzer, and accumulation of lipid droplets by Nile Red staining. Expression of angiogenesis, proliferation, and neuronal differentiation markers, and tumor sections were assessed by immunohistochemistry. Gene expression from NB patient as well as adrenal gland cohorts were analyzed using GraphPad Prism software (v.8) and GSEA (v4.0.3), while pseudo-time progression on post-natal adrenal gland cells from single-nuclei transcriptome data was computed using scVelo. RESULTS: Here, we show that simultaneous activation of GR and ERα potentiated induction of neuronal differentiation, reduced NB cell viability in vitro, and decreased tumor burden in vivo. This was accompanied by a metabolic reprogramming manifested by changes in the glycolytic and mitochondrial functions and in lipid droplet accumulation. Activation of the retinoic acid receptor alpha (RARα) with all-trans retinoic acid (ATRA) further enhanced the differentiated phenotype as well as the metabolic switch. Single-cell nuclei transcriptome analysis of human adrenal glands indicated a sequential expression of ERα, GR, and RARα during development from progenitor to differentiated chromaffin cells. Further, in silico analysis revealed that patients with higher combined expression of GR, ERα, and RARα mRNA levels had elevated expression of neuronal differentiation markers and a favorable outcome. CONCLUSION: Together, our findings suggest that combination therapy involving activation of several NHRs could be a promising pharmacological approach for differentiation treatment of NB patients.


Asunto(s)
Receptor alfa de Estrógeno , Neuroblastoma , Diferenciación Celular , Línea Celular Tumoral , Niño , Receptor alfa de Estrógeno/metabolismo , Regulación Neoplásica de la Expresión Génica , Humanos , Proteína Proto-Oncogénica N-Myc/genética , Neuroblastoma/patología , Pronóstico , Receptores Citoplasmáticos y Nucleares/metabolismo , Tretinoina/farmacología
6.
Cell Death Differ ; 29(7): 1304-1317, 2022 07.
Artículo en Inglés | MEDLINE | ID: mdl-35831624

RESUMEN

During decades, the research field of cancer metabolism was based on the Warburg effect, described almost one century ago. Lately, the key role of mitochondria in cancer development has been demonstrated. Many mitochondrial pathways including oxidative phosphorylation, fatty acid, glutamine, and one carbon metabolism are altered in tumors, due to mutations in oncogenes and tumor suppressor genes, as well as in metabolic enzymes. This results in metabolic reprogramming that sustains rapid cell proliferation and can lead to an increase in reactive oxygen species used by cancer cells to maintain pro-tumorigenic signaling pathways while avoiding cellular death. The knowledge acquired on the importance of mitochondrial cancer metabolism is now being translated into clinical practice. Detailed genomic, transcriptomic, and metabolomic analysis of tumors are necessary to develop more precise treatments. The successful use of drugs targeting metabolic mitochondrial enzymes has highlighted the potential for their use in precision medicine and many therapeutic candidates are in clinical trials. However, development of efficient personalized drugs has proved challenging and the combination with other strategies such as chemocytotoxic drugs, immunotherapy, and ketogenic or calorie restriction diets is likely necessary to boost their potential. In this review, we summarize the main mitochondrial features, metabolic pathways, and their alterations in different cancer types. We also present an overview of current inhibitors, highlight enzymes that are attractive targets, and discuss challenges with translation of these approaches into clinical practice. The role of mitochondria in cancer is indisputable and presents several attractive targets for both tailored and personalized cancer therapy.


Asunto(s)
Neoplasias , Medicina de Precisión , Humanos , Mitocondrias/metabolismo , Neoplasias/tratamiento farmacológico , Neoplasias/genética , Fosforilación Oxidativa , Especies Reactivas de Oxígeno/metabolismo
7.
Ecancermedicalscience ; 16: 1463, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-36819821

RESUMEN

Background: The State-of-the-Art Treatment for Locally Advanced Cervical Cancer (LACC) is Definite Radio-Chemotherapy based on the Image-guided intensity modulated External beam radiochemotherapy and MRI-based adaptive BRAchytherapy (EMBRACE) trial, according to the FIGO staging. This staging is based on clinical examination and imaging studies; however, there are limitations of imaging techniques which may result in adverse events or death due to insufficient or overtreatment. The aim of the study was to evaluate the feasibility and outcomes of surgical staging in LACC prior to radiotherapy (RT) to personalise target volumes for radiotherapy. Methods: From 2008 to 2018, 138 patients with FIGO 2018 stages IB3-IIIC2 cervical cancer underwent a pretherapeutic laparoscopic staging procedure. The pathological diagnosis was compared with the results of preoperative CT scan. Patients were treated with chemoradiotherapy tailored according to the staging results. Results: The mean patient age was 43 years, the mean body mass index was 27 kg/m2; most lesions were squamous cervical cancer (92%). Staging CT scan had a 77% concordance with the histological findings. Sensitivity was 29%, specificity 85%, positive predictive value 21% and negative predictive value 89%. Surgical staging led to change of stage in 24% of cases. Para -aortic dissection led to change the initially planned radiotherapy fields in 47% of the cases. Major complications included involuntary section of the inferior mesenteric artery (IMA) without clinical repercussion, an infected retroperitoneal haematoma and a symptomatic lymphocele requiring laparoscopic drainage. Conclusion: Laparoscopic staging before primary chemoradiation in patients with LACC was feasible, safe and reproducible, allowing reduction of the radiotherapy treatment volumes of patients.

8.
iScience ; 24(2): 102128, 2021 Feb 19.
Artículo en Inglés | MEDLINE | ID: mdl-33659885

RESUMEN

Many metabolic pathways, including lipid metabolism, are rewired in tumors to support energy and biomass production and to allow adaptation to stressful environments. Neuroblastoma is the second deadliest solid tumor in children. Genetic aberrations, as the amplification of the MYCN-oncogene, correlate strongly with disease progression. Yet, there are only a few molecular targets successfully exploited in the clinic. Here we show that inhibition of fatty acid synthesis led to increased neural differentiation and reduced tumor burden in neuroblastoma xenograft experiments independently of MYCN-status. This was accompanied by reduced levels of the MYCN or c-MYC oncoproteins and activation of ERK signaling. Importantly, the expression levels of genes involved in de novo fatty acid synthesis showed prognostic value for neuroblastoma patients. Our findings demonstrate that inhibition of de novo fatty acid synthesis is a promising pharmacological intervention strategy for the treatment of neuroblastoma independently of MYCN-status.

9.
Front Psychol ; 11: 589250, 2020.
Artículo en Inglés | MEDLINE | ID: mdl-33424704

RESUMEN

There is an increasing demand for ethical and Corporate Social Responsibility (CSR) practices by companies. This competence has to be introduced in students' training in business degree programs, and a check must then be done to determine if the students have come to appreciate the importance of CSR commitments. Using the framework of Stakeholders Theory, this work aims to examine students' perceptions of ethical and CSR practices and commitment to different stakeholders, as well as the factors that lead students to act in a socially responsible way. Furthermore, we hope to identify how the perception of CSR can be improved when Web 2.0 and social media tools that have proven effective in transmitting emotions and values are used in classrooms to teach these ideas. To this end, a survey was carried out in the year 2019 with 1,030 first-year students; it was administered at the beginning of the semester and also at the end of the semester after the training activities had been carried out. The main finding of the research is that students start with the belief that ethics and CSR are developed for reasons of image and legitimacy; however, after receiving training on these topics through tools that take into account emotions and values, they start to value the importance of the company as an agent of social change. The main practical and managerial implication is that methods based on Web 2.0 and social media tools are useful to teach ethics and CSR; the theoretical contribution is that students take into account the welfare of others. This finding contributes to Stakeholder Theory in a higher education context.

10.
iScience ; 21: 188-204, 2019 Nov 22.
Artículo en Inglés | MEDLINE | ID: mdl-31670074

RESUMEN

In pediatric neuroblastoma, MYCN-amplification correlates to poor clinical outcome and new treatment options are needed for these patients. Identifying the metabolic adaptations crucial for tumor progression may be a promising strategy to discover novel therapeutic targets. Here, we have combined proteomics, gene expression profiling, functional analysis, and metabolic tracing to decipher the impact of MYCN on neuroblastoma cell metabolism. We found that high MYCN levels are correlated with altered expression of proteins involved in multiple metabolic processes, including enhanced glycolysis and increased oxidative phosphorylation. Unexpectedly, we discovered that MYCN-amplified cells showed de novo glutamine synthesis. Furthermore, inhibition of ß-oxidation reduced the viability of MYCN-amplified cells in vitro and decreased tumor burden in vivo, while not affecting non-MYCN-amplified tumors. Our data provide information on metabolic processes in MYCN expressing tumors, which could be exploited for the development of novel targeted therapies.

11.
An. psicol ; 35(3): 464-471, oct. 2019. tab, graf
Artículo en Español | IBECS | ID: ibc-190034

RESUMEN

Los objetivos del estudio fueron identificar los perfiles motivacionales de estudiantes universitarios y evaluar sus diferencias en cuanto a la satisfacción académica. Los participantes fueron 882 estudiantes con edades comprendidas entre los 17 y 50 años, procedentes de nueve universidades chilenas. Los perfiles motivacionales se identificaron mediante análisis de conglomerados, siguiendo la combinación de métodos jerárquicos y no jerárquicos. El análisis de conglomerados se realizó incluyendo las siguientes variables motivacionales: (1) motivación autónoma, (2) motivación controlada, (3) percepción de apoyo a la autonomía, y (4) percepción de control de la autonomía. Las diferencias entre los perfiles se evaluaron a través de la prueba Anova unifactorial, considerando el cálculo del tamaño del efecto y el análisis post-hoc de Games-Howell. Los resultados del análisis de conglomerados apoyaron una solución de cuatro perfiles motivacionales: mala calidad (n = 167), baja cantidad (n = 144), buena calidad (n = 333), y alta cantidad (n = 238). Además, los estudiantes agrupados en los perfiles con mayores niveles de autonomía para el aprendizaje, presentaron los niveles más altos de satisfacción académica. Como conclusión, se destaca la importancia que tienen los factores motivacionales para facilitar el desarrollo del bienestar de los estudiantes universitarios


The aims of the study were to identify the motivational profiles of university students and to assess their differences according the academic satisfaction. The participants were 882 students aged 17 to 50, from nine Chilean universities. Motivational profiles were identified by cluster analysis, following the combination of hierarchical and non-hierarchical methods. The cluster analysis was perform including the following motivational variables: (1) autonomous motivation, (2) controlled motivation, (3) perception of autonomy support, and (4) perception of autonomy control. The differences among the profiles were assessed through the one way Anova test, considering the effect size calculation, and the Games-Howell post-hoc analysis. The cluster analysis results supported a four motivational profiles solution: poor quality (n = 167), low quantity (n = 144), good quality (n = 333), and high quantity (n = 238). Moreover, students grouped into profiles with higher levels of autonomy for learning, presented the highest levels of academic satisfaction. In conclusion, the importance of motivational factors to facilitate the development of university students' well-being is highlighted


Asunto(s)
Humanos , Masculino , Femenino , Adolescente , Adulto Joven , Adulto , Persona de Mediana Edad , Éxito Académico , Motivación , Estudiantes/psicología , Enseñanza , Rendimiento Académico/psicología , Análisis por Conglomerados , Autonomía Personal , Encuestas y Cuestionarios
12.
Rev. esp. cardiol. (Ed. impr.) ; 72(9): 740-748, sept. 2019. tab, graf
Artículo en Español | IBECS | ID: ibc-189133

RESUMEN

Introducción y objetivos: La evolución tras una primera hospitalización por insuficiencia cardiaca (IC), en particular la interacción entre supervivencia y rehospitalizaciones, no está bien establecida. Métodos: Se estudió a todos los pacientes con una primera hospitalización y diagnóstico principal de IC en el periodo 2009-2013, mediante el análisis del Conjunto Mínimo Básico de Datos en la Región de Murcia. Se diferenció entre pacientes nuevos o incidentes y recurrentes, y se calcularon tasas poblacionales y tendencias mediante regresión de joinpoint. Se realizó un seguimiento por tarjeta sanitaria individual hasta el fin de 2015, y se registraron la mortalidad y los reingresos, sus causas y la cronología de los reingresos respecto al fallecimiento. Resultados: Se identificó a 8.258 incidentes, con una tendencia creciente de la tasa anual (+2,3%; p <0,05) hasta 1,24/1.000 habitantes; esto supuso el 71% de los hospitalizados por IC y el 57% del total de altas por IC. En el primer año, el 22% reingresó por IC, el 31% por causa cardiovascular y el 54% por cualquier causa. La supervivencia a los 5 años fue del 40%, significativamente inferior a la de la población general ajustada por edad y sexo (76%) (p <0,001). Entre los fallecidos en el seguimiento, las rehospitalizaciones (1,5/paciente/año; 0,4 debidas a IC) mostraron un patrón en J, donde el 48% de reingresos se acumularon en los últimos 3 deciles de tiempo de supervivencia antes del fallecimiento. Conclusiones: La primera hospitalización por IC mantiene tasas en aumento, con elevada mortalidad y reingresos en el seguimiento, que se acumulan principalmente en el periodo previo al fallecimiento


Introduction and objectives: Disease progression in patients after a first hospitalization for heart failure (HF), in particular the interaction between survival and rehospitalizations, is not well established. Methods: We studied all patients with a first hospitalization and main diagnosis of HF from 2009 to 2013 by analyzing the Minimum Data Set of the Region of Murcia. Both incident and recurrent patients were studied, and the trend in hospitalization rates was calculated by joinpoint regression. Patients were followed-up through their health cards until the end of 2015. Mortality and readmissions, including causes and chronology in relation to the time of death, were assessed. Results: A total of 8258 incident patients were identified, with annual rates increasing (+2.3%, P <.05) up to 1.24 patients per 1000 inhabitants, representing 71% of hospitalized individuals and 57% of total discharges due to HF. In the first year, 22% were readmitted due to HF, 31% due to cardiovascular causes, and 54% due to any cause. Five-year survival was 40%, which was significantly lower than age- and sex-adjusted expected survival for the general population (76%) (P <.001). Among patients who died during follow-up, readmissions (1.5 per patient/y, 0.4 due to HF) showed a "J" pattern, with 48% of rehospitalizations being concentrated in the last 3 deciles of survival prior to death. Conclusions: Rates of first hospitalization due to HF continue to increase, with high mortality and rehospitalizations during follow-up, which are concentrated mainly in the period prior to death


Asunto(s)
Humanos , Masculino , Femenino , Lactante , Preescolar , Niño , Adolescente , Adulto Joven , Adulto , Persona de Mediana Edad , Anciano , Anciano de 80 o más Años , Insuficiencia Cardíaca/epidemiología , Tiempo de Internación/estadística & datos numéricos , Mortalidad Hospitalaria/tendencias , Readmisión del Paciente/estadística & datos numéricos , Brote de los Síntomas , Análisis de Supervivencia , Progresión de la Enfermedad
13.
mSystems ; 4(4)2019 Jul 02.
Artículo en Inglés | MEDLINE | ID: mdl-31266798

RESUMEN

Understanding ecosystem response to disturbances and identifying the most critical traits for the maintenance of ecosystem functioning are important goals for microbial community ecology. In this study, we used 16S rRNA amplicon sequencing and metagenomics to investigate the assembly of bacterial populations in a full-scale municipal activated sludge wastewater treatment plant over a period of 3 years, including a 9-month period of disturbance characterized by short-term plant shutdowns. Following the reconstruction of 173 metagenome-assembled genomes, we assessed the functional potential, the number of rRNA gene operons, and the in situ growth rate of microorganisms present throughout the time series. Operational disturbances caused a significant decrease in bacteria with a single copy of the rRNA (rrn) operon. Despite moderate differences in resource availability, replication rates were distributed uniformly throughout time, with no differences between disturbed and stable periods. We suggest that the length of the growth lag phase, rather than the growth rate, is the primary driver of selection under disturbed conditions. Thus, the system could maintain its function in the face of disturbance by recruiting bacteria with the capacity to rapidly resume growth under unsteady operating conditions.IMPORTANCE Disturbance is a key determinant of community assembly and dynamics in natural and engineered ecosystems. Microbiome response to disturbance is thought to be influenced by bacterial growth traits and life history strategies. In this time series observational study, the response to disturbance of microbial communities in a full-scale activated sludge wastewater treatment plant was assessed by computing specific cellular traits of genomes retrieved from metagenomes. It was found that the genomes observed in disturbed periods have more copies of the rRNA operon than genomes observed in stable periods, whereas the in situ mean relative growth rates of bacteria present during stable and disturbed periods were indistinguishable. From these intriguing observations, we infer that the length of the lag phase might be a growth trait that affects the microbial response to disturbance. Further exploration of this hypothesis could contribute to better understanding of the adaptive response of microbiomes to unsteady environmental conditions.

14.
Podium (Pinar Río) ; 14(1): 105-122, ene.-abr. 2019.
Artículo en Español | LILACS-Express | LILACS | ID: biblio-1091705

RESUMEN

RESUMEN Esta obra es el resultado del trabajo sistemático de quienes acumulan una larga trayectoria en el quehacer de la Facultad de Cultura Física "Nancy Uranga Romagoza" y en el ejercicio de la labor universitaria. En ella, se puede encontrar el proceso histórico de gestación, consolidación y afirmación de la Facultad de Cultura Física de Pinar del Río, expresado por los propios hacedores fundamentales. La investigación tiene como objetivo fundamental preservar la historia de la institución docente, así como también mostrar a las presentes y futuras generaciones el origen y decursar de la Facultad de Cultura Física "Nancy Uranga Romagoza" de la Universidad de Pinar del Río "Hermanos Saíz Montes de Oca", para así contribuir con la elevación del sentido de pertenencia hacia la carrera y el plantel. Para llevar a cabo este estudio, se realizó una revisión documental que incluyó una consulta a las resoluciones sobre la constitución de la Facultad de Cultura Física "Nancy Uranga Romagoza" en sus diferentes etapas, así como entrevistas a personalidades del deporte que han mantenido relación con las escuelas deportivas y, principalmente, con la Facultad de Cultura Física "Nancy Uranga Romagoza" en estudio.


ABSTRACT This work is the outcome of a systematic work coming from people who have saved deep and experienced records about the Faculty of Physical Culture"Nancy Uranga Romagoza", University of Pinar del Río "Hermanos Saíz Montes de Oca", Cuba. Throughout this article you can find the process of establishment and evolution of the Sport Faculty of Physical Culture "Nancy Uranga Romagoza" in Pinar del Río, taking in to consideration the critics and opinions of experts. The objective of the research is to preserve the historical background of the Faculty of Physical Culture "Nancy Uranga Romagoza" and the show the compiled work to the present and future generations. In this way it can be reinforced the sense of identity and positive moral values in the institution. To carry out this study it was necessary to apply some interviews and to consult some documents about the constitution of the Faculty of Physical Culture "Nancy Uranga Romagoza" attending to the different stages of evolution.

15.
Rev Esp Cardiol (Engl Ed) ; 72(9): 740-748, 2019 Sep.
Artículo en Inglés, Español | MEDLINE | ID: mdl-30262426

RESUMEN

INTRODUCTION AND OBJECTIVES: Disease progression in patients after a first hospitalization for heart failure (HF), in particular the interaction between survival and rehospitalizations, is not well established. METHODS: We studied all patients with a first hospitalization and main diagnosis of HF from 2009 to 2013 by analyzing the Minimum Data Set of the Region of Murcia. Both incident and recurrent patients were studied, and the trend in hospitalization rates was calculated by joinpoint regression. Patients were followed-up through their health cards until the end of 2015. Mortality and readmissions, including causes and chronology in relation to the time of death, were assessed. RESULTS: A total of 8258 incident patients were identified, with annual rates increasing (+2.3%, P <.05) up to 1.24 patients per 1000 inhabitants, representing 71% of hospitalized individuals and 57% of total discharges due to HF. In the first year, 22% were readmitted due to HF, 31% due to cardiovascular causes, and 54% due to any cause. Five-year survival was 40%, which was significantly lower than age- and sex-adjusted expected survival for the general population (76%) (P <.001). Among patients who died during follow-up, readmissions (1.5 per patient/y, 0.4 due to HF) showed a "J" pattern, with 48% of rehospitalizations being concentrated in the last 3 deciles of survival prior to death. CONCLUSIONS: Rates of first hospitalization due to HF continue to increase, with high mortality and rehospitalizations during follow-up, which are concentrated mainly in the period prior to death.


Asunto(s)
Insuficiencia Cardíaca/epidemiología , Hospitalización/tendencias , Vigilancia de la Población/métodos , Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Niño , Preescolar , Progresión de la Enfermedad , Femenino , Estudios de Seguimiento , Insuficiencia Cardíaca/terapia , Humanos , Lactante , Recién Nacido , Masculino , Persona de Mediana Edad , Readmisión del Paciente/tendencias , Estudios Retrospectivos , España/epidemiología , Tasa de Supervivencia/tendencias , Adulto Joven
16.
Psicol. educ. (Madr.) ; 24(2): 99-106, jun. 2018. tab
Artículo en Español | IBECS | ID: ibc-180726

RESUMEN

El análisis de la satisfacción académica constituye un aspecto clave para explicar la calidad del aprendizaje. Para medir el constructo, actualmente se dispone de la Escala de Satisfacción Académica (ESA), instrumento de medida basado en la perspectiva del bienestar psicológico. Debido a que no se cuenta con antecedentes sobre su aplicación en el contexto de la educación superior chilena, el objetivo del estudio fue evaluar la estructura factorial, consistencia interna y validez de la ESA en una muestra de estudiantes universitarios chilenos. Los participantes fueron 608 estudiantes de siete universidades chilenas. Los resultados del análisis factorial exploratorio (AFE) y confirmatorio (AFC) apoyaron la estructura unifactorial propuesta en el modelo original. Finalmente, los resultados del análisis factorial confirmatorio multigrupo (AFCM) apoyaron la invarianza del modelo de medida entre estudiantes mujeres y hombres. Se concluye que la ESA presenta adecuadas propiedades psicométricas para medir la satisfacción académica en estudiantes universitarios chilenos


The analysis of academic satisfaction is a key aspect to explain the quality of learning. To measure the construct, currently there is the Academic Satisfaction Scale (ASS), a measurement instrument based on the psychological wellbeing perspective. Since there is no background regarding its application in the context of Chilean higher education, the aim of the study was to assess the factor structure, internal consistency, and validity of the ASS in a sample of Chilean university students. The participants were 608 students from seven Chilean universities. The exploratory factor analysis (EFA) and confirmatory factor analysis (CFA) results supported the unifactorial structure proposed in the original model. Finally, the Multi-Group confirmatory factor analysis (MCFA) results supported the measurement model invariance between female and male students. It is concluded that the ASS has adequate psychometric properties to measure academic satisfaction in Chilean university students


Asunto(s)
Humanos , Masculino , Femenino , Adolescente , Adulto Joven , Adulto , Persona de Mediana Edad , Evaluación Educacional/métodos , Estudiantes/psicología , Curriculum/estadística & datos numéricos , Psicometría/instrumentación , Satisfacción Personal , Chile/epidemiología , Análisis Factorial , Comportamiento del Consumidor
17.
ARS med. (Santiago, En línea) ; 43(2): 52-56, 2018. ilus, Tab
Artículo en Español | LILACS | ID: biblio-1022903

RESUMEN

El hematoma subcapsular hepático es una complicación grave del embarazo, asociada a preeclampsia severa o síndrome de HELLP. Al ser poco frecuente se requiere un alto índice de sospecha para realizar el diagnóstico precozmente, lo que determinará su pronóstico. A pesar de los avances en cirugía y medicina intensiva es una patología que sigue teniendo una elevada morbimortalidad materno fetal. Damos a conocer el caso de una paciente que cursó un embarazo sin incidentes hasta el parto, posterior a lo cual presenta síndrome de HELLP y un hematoma subcapsular hepático, que evolucionó favorablemente con tratamiento conservador.(AU)


A hepatic subcapsular hematoma is a serious complication of pregnancy, associated with severe preeclampsia or HELLP syndrome. Due to the low frequency of this presentation, a high suspicion index is required for early diagnosis, which it will determine its prognosis. Despite the advances in surgery and intensive medicine, it still has high maternal-fetal morbidity and mortality. In the present work, we report the case of a patient who had a physiological pregnancy until labor. Subsequently, the patient developed HELLP syndrome and hepatic subcapsular hematoma, which evolved favorably with conservative treatment. (AU)


Asunto(s)
Humanos , Femenino , Embarazo , Complicaciones del Embarazo , Síndrome HELLP , Preeclampsia , Hematoma
18.
Rev. medica electron ; 39(6): 1373-1377, nov.-dic. 2017.
Artículo en Español | CUMED | ID: cum-77072

RESUMEN

Muchos han sido los médicos cubanos que se han dedicado al estudio de la microbiología médica, entre ellos algunos muy conocidos como el matancero Juan Guiteras Gener. Con este trabajo los autores pretendieron resaltar la figura del microbiólogo colombino Ángel Florencio Duque Pérez, primer microbiólogo matancero formado por la revolución y con una esmerada labor. Fallecido hace varios años, este excelente profesional es poco conocido y prácticamente ha quedado en el olvido. Para todos aquellos que lo conocieron y para los que no tuvieron ese enorme placer se les hace llegar esta síntesis biográfica (AU).


There have been many Cuban doctors who have devoted themselves to the study of Medical Microbiology, including well-known ones as the Matanzasan Juan Guiteras Gener. With this work the authors pretended to highlight the figure of the Colombinan microbiologist Florencio Angel Duque Pérez, the first microbiologist trained after the Revolution, with an important work. Deceased several years ago, this excellent professional is scarcely known and has been virtually forgotten. This biography is intended to all those who knew him and to all those who did not have that great pleasure (AU).


Asunto(s)
Humanos , Masculino , Femenino , Médicos/historia , Microbiología/historia , Parasitología/historia , Práctica Profesional/historia , Medicina/tendencias
19.
Rev. medica electron ; 39(6): 1373-1377, nov.-dic. 2017.
Artículo en Español | LILACS, CUMED | ID: biblio-1127736

RESUMEN

Muchos han sido los médicos cubanos que se han dedicado al estudio de la microbiología médica, entre ellos algunos muy conocidos como el matancero Juan Guiteras Gener. Con este trabajo los autores pretendieron resaltar la figura del microbiólogo colombino Ángel Florencio Duque Pérez, primer microbiólogo matancero formado por la revolución y con una esmerada labor. Fallecido hace varios años, este excelente profesional es poco conocido y prácticamente ha quedado en el olvido. Para todos aquellos que lo conocieron y para los que no tuvieron ese enorme placer se les hace llegar esta síntesis biográfica (AU).


There have been many Cuban doctors who have devoted themselves to the study of Medical Microbiology, including well-known ones as the Matanzasan Juan Guiteras Gener. With this work the authors pretended to highlight the figure of the Colombinan microbiologist Florencio Angel Duque Pérez, the first microbiologist trained after the Revolution, with an important work. Deceased several years ago, this excellent professional is scarcely known and has been virtually forgotten. This biography is intended to all those who knew him and to all those who did not have that great pleasure (AU).


Asunto(s)
Humanos , Masculino , Femenino , Médicos/historia , Microbiología/historia , Parasitología/historia , Práctica Profesional/historia , Medicina/tendencias
20.
Drug Des Devel Ther ; 11: 1497-1503, 2017.
Artículo en Inglés | MEDLINE | ID: mdl-28553080

RESUMEN

Safety concerns for recombinant human growth hormone (rhGH) treatments include impact on cancer risk, impact on glucose homeostasis, and the formation of antibodies to endogenous/exogenous GH. Omnitrope® (biosimilar rhGH) was approved by the European Medicines Agency in 2006, with approval granted on the basis of comparable quality, safety, and efficacy to the reference medicine (Genotropin®). Additional concerns that may exist in relation to biosimilar rhGH include safety in indications granted on the basis of extrapolation and the impact of changing to biosimilar rhGH from other rhGH treatments. A substantial data set is available to fully understand the safety profile of biosimilar rhGH, which includes data from its clinical development studies and 10 years of post-approval experience. As of June 2016, 106,941,419 patient days (292,790 patient-years) experience has been gathered for biosimilar rhGH. Based on the available data, there have been no unexpected or unique adverse events related to biosimilar rhGH treatment. There is no increased risk of cancer, adverse glucose homeostasis, or immunogenic response with biosimilar rhGH compared with the reference medicine and other rhGH products. The immunogenicity of biosimilar rhGH is also similar to that of the reference and other rhGH products. Physicians should be reassured that rhGH products have a good safety record when used for approved indications and at recommended doses, and that the safety profile of biosimilar rhGH is in keeping with that of other rhGH products.


Asunto(s)
Biosimilares Farmacéuticos/efectos adversos , Aprobación de Drogas , Hormona de Crecimiento Humana/efectos adversos , Biosimilares Farmacéuticos/administración & dosificación , Europa (Continente) , Hormona de Crecimiento Humana/administración & dosificación , Humanos , Proteínas Recombinantes
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