Biomarcadores genéticos en sangre, una nueva herramienta para el diagnóstico, pronóstico y supervivencia en pacientes con gliomas de alto grado

Durante mucho tiempo, la clasificación de los tumores del sistema nervioso central (SNC) se ha basado en hallazgos histológicos respaldados por pruebas complementarias, como la inmunohistoquímica, establecidas en tejidos. La quinta edición de la clasificación de tumores del SNC de la Organización Mundial de la Salud (OMS), publicada en 2021 (SNC-5) incorpora numerosos marcadores moleculares con utilidad clínico-patológica que son importantes para una clasificación más precisa de las neoplasias del SNC. Ello permiten ayudar a definir los gliomas difusos del adulto, oligodendroglioma mutado para el gen de la IDH (isocitrato deshidrogenasa láctica), con codeleción 1p/19q grados 2 a 3, astrocitoma mutado para IDH sin codeleción 1p/19q, grados 2 a 4 y glioblastoma (GBM) silvestre para IDH. La mediana de sobrevida en los pacientes con GBM es de solo 14.6 meses, debido a la resistencia al protocolo de terapia más utilizado en el mundo, el cual involucra cirugía, radioterapia y quimioterapia con temozolamida (TMZ), un potente alquilante genotóxico. Los criterios de selección del tratamiento y la estimación del pronóstico en pacientes con esta enfermedad son clínico-patológicos. En los últimos años se reportaron numerosas alteraciones moleculares que amplían la comprensión de la biología de estos tumores, pero solo unas pocas influyen como biomarcadores en la toma de decisiones clínicas y del tratamiento. En este artículo se revisan las alteraciones moleculares reportadas para gliomas de alto grado en sangre periférica, también se resalta la importancia de estandarizar nuevos biomarcadores junto a los hallazgos histológicos para mejorar el conocimiento de estos tumores

Retos actuales de la farmacia

Retos actuales de la farmacia es un proyecto que está coordinado por Leobargo Manuel Gómez Oliván y un equipo de investigadores que forman parte del claustro de la Facultad de Química en el área de posgrado, ellos han incentivado el espíritu investigador y científico de los estudiantes adscritos al programa para adentrarse en el ámbito farmacéutico. Los capítulos que conforman esta edición son el reflejo de la actividad académica desarrollada en este posgrado en las diferentes áreas de acentuación que lo conforman: farmacia molecular, farmacia social y tecnología farmacéutica

Clonal chromosomal mosaicism and loss of chromosome Y in elderly men increase vulnerability for SARS-CoV-2

The pandemic caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2, COVID-19) had an estimated overall case fatality ratio of 1.38% (pre-vaccination), being 53% higher in males and increasing exponentially with age. Among 9578 individuals diagnosed with COVID-19 in the SCOURGE study, we found 133 cases (1.42%) with detectable clonal mosaicism for chromosome alterations (mCA) and 226 males (5.08%) with acquired loss of chromosome Y (LOY). Individuals with clonal mosaic events (mCA and/or LOY) showed a 54% increase in the risk of COVID-19 lethality. LOY is associated with transcriptomic biomarkers of immune dysfunction, pro-coagulation activity and cardiovascular risk. Interferon-induced genes involved in the initial immune response to SARS-CoV-2 are also down-regulated in LOY. Thus, mCA and LOY underlie at least part of the sex-biased severity and mortality of COVID-19 in aging patients. Given its potential therapeutic and prognostic relevance, evaluation of clonal mosaicism should be implemented as biomarker of COVID-19 severity in elderly people. Among 9578 individuals diagnosed with COVID-19 in the SCOURGE study, individuals with clonal mosaic events (clonal mosaicism for chromosome alterations and/or loss of chromosome Y) showed an increased risk of COVID-19 lethality

Trayectorias de un viaje por la investigación educativa desde el sentipensar de los maestros y maestras : experiencias en desarrollo del programa de pensamiento crítico

428 páginasEste libro reúne 19 experiencias que continúan el acompañamiento en la fundamentación, desarrollo y estructuración de estrategias de tipo pedagógico y didáctico dentro de la ruta sentipensante en el Nivel II: Experiencias en desarrollo. Igualmente, en estas experiencias se hace una ampliación de referentes, técnicas e instrumentos para recoger información de los 19 textos presentados. De tal manera, estas experiencias son fruto de este acompañamiento que ha realizado el Instituto para la Investigación Educativa y el Desarrollo Pedagógico IDEP, que servirán de base y referente para seguir aportando en la configuración y consolidación de comunidades de saber y práctica pedagógica, así como en la conformación de colectivos y redes de maestros y maestras

Mortality from gastrointestinal congenital anomalies at 264 hospitals in 74 low-income, middle-income, and high-income countries: a multicentre, international, prospective cohort study

Summary Background Congenital anomalies are the fifth leading cause of mortality in children younger than 5 years globally. Many gastrointestinal congenital anomalies are fatal without timely access to neonatal surgical care, but few studies have been done on these conditions in low-income and middle-income countries (LMICs). We compared outcomes of the seven most common gastrointestinal congenital anomalies in low-income, middle-income, and high-income countries globally, and identified factors associated with mortality. Methods We did a multicentre, international prospective cohort study of patients younger than 16 years, presenting to hospital for the first time with oesophageal atresia, congenital diaphragmatic hernia, intestinal atresia, gastroschisis, exomphalos, anorectal malformation, and Hirschsprung’s disease. Recruitment was of consecutive patients for a minimum of 1 month between October, 2018, and April, 2019. We collected data on patient demographics, clinical status, interventions, and outcomes using the REDCap platform. Patients were followed up for 30 days after primary intervention, or 30 days after admission if they did not receive an intervention. The primary outcome was all-cause, in-hospital mortality for all conditions combined and each condition individually, stratified by country income status. We did a complete case analysis. Findings We included 3849 patients with 3975 study conditions (560 with oesophageal atresia, 448 with congenital diaphragmatic hernia, 681 with intestinal atresia, 453 with gastroschisis, 325 with exomphalos, 991 with anorectal malformation, and 517 with Hirschsprung’s disease) from 264 hospitals (89 in high-income countries, 166 in middleincome countries, and nine in low-income countries) in 74 countries. Of the 3849 patients, 2231 (58·0%) were male. Median gestational age at birth was 38 weeks (IQR 36–39) and median bodyweight at presentation was 2·8 kg (2·3–3·3). Mortality among all patients was 37 (39·8%) of 93 in low-income countries, 583 (20·4%) of 2860 in middle-income countries, and 50 (5·6%) of 896 in high-income countries (p<0·0001 between all country income groups). Gastroschisis had the greatest difference in mortality between country income strata (nine [90·0%] of ten in lowincome countries, 97 [31·9%] of 304 in middle-income countries, and two [1·4%] of 139 in high-income countries; p≤0·0001 between all country income groups). Factors significantly associated with higher mortality for all patients combined included country income status (low-income vs high-income countries, risk ratio 2·78 [95% CI 1·88–4·11], p<0·0001; middle-income vs high-income countries, 2·11 [1·59–2·79], p<0·0001), sepsis at presentation (1·20 [1·04–1·40], p=0·016), higher American Society of Anesthesiologists (ASA) score at primary intervention (ASA 4–5 vs ASA 1–2, 1·82 [1·40–2·35], p<0·0001; ASA 3 vs ASA 1–2, 1·58, [1·30–1·92], p<0·0001]), surgical safety checklist not used (1·39 [1·02–1·90], p=0·035), and ventilation or parenteral nutrition unavailable when needed (ventilation 1·96, [1·41–2·71], p=0·0001; parenteral nutrition 1·35, [1·05–1·74], p=0·018). Administration of parenteral nutrition (0·61, [0·47–0·79], p=0·0002) and use of a peripherally inserted central catheter (0·65 [0·50–0·86], p=0·0024) or percutaneous central line (0·69 [0·48–1·00], p=0·049) were associated with lower mortality. Interpretation Unacceptable differences in mortality exist for gastrointestinal congenital anomalies between lowincome, middle-income, and high-income countries. Improving access to quality neonatal surgical care in LMICs will be vital to achieve Sustainable Development Goal 3.2 of ending preventable deaths in neonates and children younger than 5 years by 2030

Resting metabolic rate in relation to incident disability and mobility decline among older adults: the modifying role of frailty

Background: Alterations in resting metabolic rate (RMR), the largest component of daily total energy expenditure, with aging have been shown in various studies. However, little is known about the associations between RMR and health outcomes in later life. Aims: To analyze whether RMR is associated with incident disability and mobility decline in a 10-year longitudinal study, as well as the moderating role of frailty in these associations. Methods: Data from 298 older adults aged 70 and over from the Frailty and Dependence in Albacete (FRADEA) study in Spain were used, including a baseline measurement in 2007–2009 and a follow-up measurement 10 years later. RMR was measured by indirect calorimetry. Outcomes were incident disability in basic activities of daily living (BADL, Barthel Index), incident disability in instrumental ADL (IADL, Lawton index), and mobility decline (Functional Ambulation Categories scores). Fried’s frailty phenotype was used as an indicator of frailty. Logistic regression analyses were conducted. Results: Fully adjusted and stratified analyses revealed that only in the pre-frail/frail group, a higher RMR was associated with a lower risk of incident BADL disability (OR = 0.47, 95% CI = 0.23–0.96, p = 0.037), incident IADL disability (OR = 0.39, 95% CI = 0.18–0.84, p = 0.017), and mobility decline (OR = 0.30, 95% CI = 0.14–0.64, p = 0.002). Conclusions: To our knowledge, this is the first study looking at the associations between RMR and functional health using a longitudinal research design. The results suggest that RMR could be used as an early identifier of a specific resilient group within the pre-frail and frail older population, with a lower risk of further health decline

Características de familias y escuelas de niños agresivos y prosociales, Medellín 1998-2000

IP 1228-10-852-98Proyecto de investigacioncomportamientos psicosociales ytrastornos dificitarios en escolares de 3 a 11 años años de la ciudad de Medellin, 2001-abordaje cuantitativo/ Martha Beatriz Gaviria Londoño, Carlos Alberto En : Seminario Taller Socializacion de Experiencias deIntervencion e Investigacion para la Prevencion Temprana de la Violencia en la Familia y la Escuela(2002 feb-25 : Medellin) . -- Construccion y validacion de una escala para detectar comportamientos agresivosy prosociales. Niños 3-11 años. Medellin. -- Modelos de Intervencion para la prevencion temprana de laviolencia en elambito familiar y escolar. Recopilacion de experiencias y modelo propuesto / Erika MariaMontoya Vasquez En: Seminario Taller Socializacion de Experiencias de Intervencion e Investigacionpara la Prevencion Temprana de la Violencia en la Familia y la Escuela (2002 feb. 25 : Medellin). -- Experiencias en Odres en la aplicacion del modelo en los hogares infantiles del ICBF / Mario Sanchez En: SeminarioTaller Socializacion de Experiencias de Intervencion e Investigacion para la Prevencion Temprana de laViolencia en la Familia y la Escuela (2002 feb. 25 : Medllin). -- Intervencion para la prevencion temprana dela violencia, en familias de niños procedentes de algunos hogares infantiles y establecimientos educativos dela ciudad de Medellin / Piedad Estra Arango En: Seminario Taller Socializacion de Experiencias de IntervencioneInvestigacion para la Prevencion Temprana de la Violencia en la Familia y la Escuela (2002 feb. 25 : Medelln). -- Intervencion para prevencion temprana de la violencia en escuelas primarias de Medelin / Gloria MatildeZuluaga Avalos, Claudia Alejandra Galvez Ortiz En : Seminario Taller Socializacion de Experiencias de Intervencion e Investigacion para la Prevencion Temprana de la Violencia en la Familia y la Escuela (2002feb.25 : Medllin). -- Caracteriticas de escuelas y familias de niños agresivos y prosociales, Medellin 2000-2002/Luz MariaAgudelo, Carlos Alberto Giraldo, Marta Beatriz Gaviria, Carlos Arturo Sandoval, Alejandro Gallon,Juan Felipe Gomez, Maria de los Angeles Rodri Incluye anexos Incluye videov.1. Caracteristicas de familias y escuela de niños agresivosyprosociales, Medellin 200-2001. -- v. 2. Resumen y Ponencia, Articulos del Informe.de la Salud, 2002. -- 143 p. -- VIDEO(S): Caracteristicasde familias y niños agresivos y prosociales.;LIBRO(S): Agudelo Suarez, Luz Maria. Caracteristicas de las familias y escuelas relacionadas con los;comportamientos agresivos y prosociales en niños y niñas de 3-11 años. -'- Medellin : Instituto de Ciencia

COVID-19 outbreak in long-term care facilities from Spain. Many lessons to learn.

Background/objectivesTo analyze mortality, costs, residents and personnel characteristics, in six long-term care facilities (LTCF) during the outbreak of COVID-19 in Spain.DesignEpidemiological study.SettingSix open LTCFs in Albacete (Spain).Participants198 residents and 190 workers from LTCF A were included, between 2020 March 6 and April 5. Epidemiological data were also collected from six LTCFs of Albacete for the same period of time, including 1,084 residents.MeasurementsBaseline demographic, clinical, functional, cognitive and nutritional variables were collected. 1-month and 3-month mortality was determined, excess mortality was calculated, and costs associated with the pandemics were analyzed.ResultsThe pooled mortality rate for the first month and first three months of the outbreak were 15.3% and 28.0%, and the pooled excess mortality for these periods were 564% and 315% respectively. In facility A, the percentage of probable COVID-19 infected residents were 33.6%. Probable infected patients were older, frail, and with a worse functional situation than those without COVID-19. The most common symptoms were fever, cough and dyspnea. 25 residents were transferred to the emergency department, 21 were hospitalized, and 54 were moved to the facility medical unit. Mortality was higher upon male older residents, with worse functionality, and higher comorbidity. During the first month of the outbreak, 65 (24.6%) workers leaved, mainly with COVID-19 symptoms, and 69 new workers were contracted. The mean number of days of leave was 19.2. Costs associated with the COVID-19 in facility A were estimated at € 276,281/month, mostly caused by resident hospitalizations, leaves of workers, staff replacement, and interventions of healthcare professionals.ConclusionThe COVID-19 pandemic posed residents at high mortality risk, mainly in those older, frail and with worse functional status. Personal and economic costs were high

En marcha con las TIC : experiencias con las tecnologías educativas en Extremadura

Se recopilan aportaciones y experiencias de profesionales de la educación extremeños que han empleado programas y herramientas para crear materiales que sirvan para su trabajo en el aula y para promocionar el aprendizaje a través del uso del ordenador.ExtremaduraConsejería de Educación. Dirección General de Política Educativa; Calle Delgado Valencia, 6; 06800 Mérida (Badajoz); +34924006714; +34924006716; [email protected]