47 research outputs found
Hemangioendotelioma hepático congénito neonatal, reporte de un caso de autopsia
RESUMEN Introducción: El hemangioendotelioma hepático infantil es el tumor primario del hígado más común en la infancia. Se presenta en pacientes menores de 6 meses, puede ser diagnosticado in útero, donde las grandes comunicaciones arteriovenosas producen hidrops fetal no inmune. Objetivo: Se describe un caso de un feto muerto con un hemangioendotelioma hepático infantil y se realiza una discusión sobre este tema. Caso clínico: Producto de un embarazo de 33 semanas de gestación de una mujer de 23 años, la ecografía obstétrica evidencio hidrops fetal secundario a presencia de tumor hepático, el paciente fallece minutos después de su nacimiento. En la necropsia se evidencia feto de sexo masculino de 3250 gr de peso, con tumor hepático de características sólidas, cuyo examen histopatológico corresponde con un hemangioendotelioma hepático infantil. Conclusión: Se presenta el estudio anatomopatológico de una autopsia perinatal realizada a un feto con tumor congénito, un hemangioendotelioma hepático infantil que produjo hidrops fetal no inmune. Salud UIS 2010; 42: 123- 126 Palabras clave: Hemangioendolelioma hepático infantil, tumores neonatales, falla cardiaca congestiva ABSTRACTIntroduction: Infantile hepatic hemangioendothelioma (HHI) is the primary liver tumor more common in childhood. Usually occurs before the 6 months of age. These tumors can be diagnosed in utero, where the large arteriovenous shunting cause non-inmune hydrops fetalis. Objetive: Describe a case of a dead fetus with a hepatic hemangioendothelioma and a discussion on this topic is done. Clinical case: Product of pregnancy of 33 weeks of gestation in a 23 years old woman, obstetrical ultrasound evidenced fetal hydrops secondary to the presenceof liver tumor, the patient died minutes after birth. The necropsy showed a male fetus of 3250gr in weight, with a liver tumor with solid features, which histopathological examination corresponds to a HHI. Conclusions: We report the pathological study of a perinatal autopsy done to a fetus with a congenital tumor, an HHI that cause non-inmune hydrops fetalis. Salud UIS 2010; 42: 123-126 Keywords: Infantil hepatic haemangioendothelioma, neonatal hepatic tumors, congestive heart failur
Hemangioendotelioma hepático congénito neonatal, reporte de un caso de autopsia
RESUMEN Introducción: El hemangioendotelioma hepático infantil es el tumor primario del hígado más común en la infancia. Se presenta en pacientes menores de 6 meses, puede ser diagnosticado in útero, donde las grandes comunicaciones arteriovenosas producen hidrops fetal no inmune. Objetivo: Se describe un caso de un feto muerto con un hemangioendotelioma hepático infantil y se realiza una discusión sobre este tema. Caso clínico: Producto de un embarazo de 33 semanas de gestación de una mujer de 23 años, la ecografía obstétrica evidencio hidrops fetal secundario a presencia de tumor hepático, el paciente fallece minutos después de su nacimiento. En la necropsia se evidencia feto de sexo masculino de 3250 gr de peso, con tumor hepático de características sólidas, cuyo examen histopatológico corresponde con un hemangioendotelioma hepático infantil. Conclusión: Se presenta el estudio anatomopatológico de una autopsia perinatal realizada a un feto con tumor congénito, un hemangioendotelioma hepático infantil que produjo hidrops fetal no inmune. Salud UIS 2010; 42: 123- 126 Palabras clave: Hemangioendolelioma hepático infantil, tumores neonatales, falla cardiaca congestiva ABSTRACTIntroduction: Infantile hepatic hemangioendothelioma (HHI) is the primary liver tumor more common in childhood. Usually occurs before the 6 months of age. These tumors can be diagnosed in utero, where the large arteriovenous shunting cause non-inmune hydrops fetalis. Objetive: Describe a case of a dead fetus with a hepatic hemangioendothelioma and a discussion on this topic is done. Clinical case: Product of pregnancy of 33 weeks of gestation in a 23 years old woman, obstetrical ultrasound evidenced fetal hydrops secondary to the presenceof liver tumor, the patient died minutes after birth. The necropsy showed a male fetus of 3250gr in weight, with a liver tumor with solid features, which histopathological examination corresponds to a HHI. Conclusions: We report the pathological study of a perinatal autopsy done to a fetus with a congenital tumor, an HHI that cause non-inmune hydrops fetalis. Salud UIS 2010; 42: 123-126 Keywords: Infantil hepatic haemangioendothelioma, neonatal hepatic tumors, congestive heart failur
Efectos de una intervención educativa y de participación comunitaria en el control de la malaria en Buenaventura, Colombia
Introduction. A four-component, non randomized, primary-care based intervention for malaria control was implemented in Buenaventura, Colombia. Objective. To evaluate the effect of the applied intervention on knowledge about malaria, attention of febrile events and frequency of malaria occurrence in three communities of Buenaventura.Materials and methods. A post-intervention evaluation with a non-equivalent control group was performed. Two non-intervened groups (those residing more and less than six months, respectively, in the area) and one intervened group were identified. We interviewed 661 women household heads. Contact was defined as having been exposed to at least one of the four intervention components.Results. Fourteen percent of the respondents had contact with the intervention. The attention of a febrile episode was better in those who had contact with the intervention than in the nonintervened ones who had resided in the area for more than six months. Those without contact and with less than six months stay in the area reported lower use of bed-nets (OR:0.46; 95% CI:0.23-0.93) and less fumigation practices (OR:0.38; 95% CI:0.19-0.75). The analysis of the malaria case trend showed a reduction in the proportion of cases contributed by the intervened communities, from 25% to 17%, six years after the intervention.Conclusion. An educational strategy is effective to enhance knowledge and modify the practices of the urban population of Buenaventura with respect to malaria.Introducción. Una intervención para el control de la malaria no aleatoria compuesta por cuatro componentes y basada en atención primaria fue implementada en Buenaventura, Colombia.Objetivo. Evaluar el efecto de la intervención en conocimientos y prácticas en malaria, atención de eventos febriles y frecuencia de malaria en tres comunas de Buenaventura.Materiales y métodos. Se realizó una evaluación post-intervención con grupo control no equivalente. Se identificaron dos grupos de no contacto de más y menos seis meses de residencia en la zona, respectivamente, y un grupo contacto con la intervención. Se entrevistaron 661 mujeres jefes de hogar. El contacto fue el haber estado expuesto al menos a uno de los cuatro componentes de la intervención.Resultados. El 14% de los entrevistados tuvieron contacto con la intervención. El evento febril fue mejor atendido en el grupo de personas contacto que en el grupo "sin contacto" que habían vivido en el lugar por más de seis meses. Los sin contacto con menos de seis meses en el lugar reportaron menor uso de toldillos (OR: 0,46; IC 95%: 0,23-0,93) y de práctica de fumigación (OR: 0,38; IC 95%: 0,19-0,75). El análisis de tendencia de casos de malaria mostró disminución de 25% a 17% de casos aportados por los grupos intervenidos, seis años después de la intervención.Conclusión. La estrategia educativa es efectiva para elevar los conocimientos y modificar las prácticas de la población urbana de Buenaventura frente a la malaria
Study of the catalytic activity of multilayer graphene (MLG), molybdenum oxide (MoO₂), and manganese ferrite (MnFe₂O₄) on the melanoidin removal by ozonation process
Melanoidin is a compound produced by food industries and distilleries, which has negative impacts on the water environment due to the high content of dissolved organic carbon and dark color. Consequently, this work aims to study the catalytic properties of multilayer graphene (MLG), molybdenum oxide (MoO₂), and manganese ferrite (MnFe₂O₄) in the ozonation process to remove melanoidin from water solution. The results show that the reaction rate constant (k) of the melanoidin decolorization process using catalytic ozonation is 1.7 times higher than the non-catalytic ozonation process. The same results were observed for all catalytic materials with no significant difference among them. On the other hand, MLG was the most efficient catalyst in removing total organic carbon. The removal efficiency was 32% for the non-catalytic ozonation process and 63% for the catalytic ozonation using MLG. This increase in efficiency is attributed to a better production of hydroxyl radicals in the presence of MLG, which was confirmed using isopropanol as a radical scavenger. The efficiencies using MoO₂ and MnFe₂O₄ were were 46% and 51%, respectively. The results show that catalytic ozonation by MLG is a promising treatment for melanoidin removal
A Influência das Redes Sociais sobre a Consciência Ambiental e a Responsabilidade Social das Gerações
With the advent of globalization and access to information, social networks came to be widely used by different generations. However, environmental issues have been causing global impacts, as well as issues of social vulnerability. Environmental awareness awakens new consumption habits, implementing a new socially responsible posture. This study aims to analyze the influence of social networks on environmental awareness and the social responsibility of Baby Boomers, Generations X, and Y, in the regions of South and Southeast Brazil. We use the methodology of quantitative and descriptive research, by means of the Structural Equation Modeling. The results highlight that individuals who are exposed to information (videos, photos, texts) related to social responsibility and environmental sustainability are positively influenced in the formation of social and environmental awareness. However, generation Y presented the lowest means of responses in the search for information on environmental and social issues. This is relevant to society, teaching institutions, government agencies, as well as companies, in order to promote actions and information on social and environmental responsibility, in order to engage Generation Y in sustainable development.Com o advento da globalização e o acesso às informações, as redes sociais passaram a ser amplamente utilizadas pelas gerações. Contudo, a problemática ambiental vem provocando impactos em nível global, assim como encontramse questões de vulnerabilidade social. Coerentemente, a consciência ambiental desperta novos hábitos de consumo, implementando nova postura socialmente responsável. Perante o exposto, este estudo tem como objetivo analisar a influência das redes sociais sobre a consciência ambiental e a responsabilidade social das gerações Baby Boomers, X e Y, nas regiões do Sul e Sudeste do Brasil. A metodologia utilizada tratou-se de uma pesquisa quantitativa e descritiva, por meio da Modelagem de Equações Estruturais. Os resultados destacam que os indivíduos que estão expostos às informações (vídeos, fotos, textos) de responsabilidade social e sustentabilidade ambiental são positivamente influenciados na formação da consciência social e ambiental. Entretanto, a geração Y apresentou as menores médias de respostas na busca de informações sobre as questões ambientais e sociais, o que é relevante para a sociedade, Instituições de Ensino, Órgãos Governamentais, bem com as empresas para fomentarem ações e informações sobre a responsabilidade socioambiental, no intuito de engajar a geração Y ao desenvolvimento sustentável
Consumo de suplementos nutricionais e nível de atividade física em adolescentes do ensino médio da rede pública de ensino: estudo de caso / Consumption of nutritional supplements and level of physical activity in public high school adolescents: a case study
O consumo de Suplementos Nutricionais por adolescentes como recursos ergogênicos tem apresentado uma crescente. Cada vez mais os jovens buscam esse recurso para obter melhores desempenhos, condicionamento físico e também para fins de estética. Os objetivos do presente estudo foi verificar e descrever o consumo de suplementos nutricionais e o nível de atividade física de adolescentes estudantes do ensino médio da rede pública. Foi realizado um estudo de caso de caráter descritivo, associando as variáveis, Nível de Atividade Física e Consumo de Suplementos Nutricionais. A amostra foi selecionada de forma aleatória simples e compreendeu 68 estudantes, 27 mulheres e 41 homens, do Ensino Médio Federal, com idades entre 18 a 20 anos. Verificou-se o nível de atividade física e consumo de suplementos nutricionais desses estudantes, através do IPAQ versão curta e Questionário de Consumo de Suplementos. Os achados constataram o consumo de Suplementos Nutricionais por 21% da amostra, sendo que 14% desses jovens adultos fazem uso da suplementação por conta própria. Apenas 29% dos voluntários que afirmaram fazer uso dos suplementos receberam prescrição médica ou de nutricionista. Sobre o Nível de Atividade Física, a literatura concorda que apenas os indivíduos classificados como “Muito Ativo” possam ter a necessidade do consumo de suplementação, dependendo da alimentação e das individualidades biológicas desses indivíduos. O estudo constatou que apenas 22% dos consumidores de suplementos nutricionais estavam classificados como “Muito Ativo” e ainda 42% dos estudantes são classificados com Irregularmente Ativo A e B
Un ensayo controlado aleatorio factorial para evaluar el efecto de la suplementación con micronutrientes y el ejercicio aeróbico regular sobre la vasodilatación dependiente del endotelio materno y el estrés oxidativo del recién nacido
Background Many studies have suggested a relationship between metabolic abnormalities and impaired fetal growth with the development of non-transmissible chronic diseases in the adulthood. Moreover, it has been proposed that maternal factors such as endothelial function and oxidative stress are key mechanisms of both fetal metabolic alterations and subsequent development of non-transmissible chronic diseases. The objective of this project is to evaluate the effect of micronutrient supplementation and regular aerobic exercise on endothelium-dependent vasodilation maternal and stress oxidative of the newborn. Methods and design 320 pregnant women attending to usual prenatal care in Cali, Colombia will be included in a factorial randomized controlled trial. Women will be assigned to the following intervention groups: 1. Control group: usual prenatal care (PC) and placebo (maltodextrine). 2. Exercise group: PC, placebo and aerobic physical exercise. 3. Micronutrients group: PC and a micronutrients capsule consisting of zinc (30 mg), selenium (70 ?g), vitamin A (400 ?g), alphatocopherol (30 mg), vitamin C (200 mg), and niacin (100 mg). 4. Combined interventions Group: PC, supplementation of micronutrients, and aerobic physical exercise. Anthropometric measures will be taken at the start and at the end of the interventions. Discussion Since in previous studies has been showed that the maternal endothelial function and oxidative stress are related to oxidative stress of the newborn, this study proposes that complementation with micronutrients during pregnancy and/or regular physical exercise can be an early and innovative alternative to strengthen the prevention of chronic diseases in the population
Study of Scientific Production on Production of Wooden Doors
The forest sector has a significant role for society reaching economic, social and environmental spheres. There is a range of products from reforestation, the most important are raw wood or logs, sawn wood, cellulose, wood panels, biomass and doors. The world door export market alone reached 3.84 billion dollars, considering an interval of ten years, it achieved an average growth of +3,3% per year. With the growing demand and the demand for quality from the external environment makes door manufacturers invest in innovation and studies on the subject. The present work used a bibliometric method in four databases (Scopus, ScienceDirect, Scielo and Mendeley) and articles and publications were searched in conference proceedings until 1996, with the theme of wooden door production, in order to understand what is being disseminated in the academic environment regarding this theme. Data were compiled on the year, authors, journals, countries and database that obtained the most publications. In general, we deduce the low explanation of this content, as few articles were found, the non-appearance of an author who stands out in this theme, in addition to the lack of publications between the years 1999 to 2010 and the lack of studies from China. which in turn is more exporter of this product
¿Responde la Resolución 8430 de 1993 a las necesidades actuales de la ética de la investigación en salud con seres humanos en Colombia?
Verifying the compliance with the ethical principles of health research legitimizes its exercise in the eyes of the society and allows for the resolution of ethical dilemmas that emerge from new research interests and methods.Resolution 8430 of 1993 is one of the main ethical guidelines governing health research on human beings in Colombia. Considering that the resolution has not been revised or updated since its promulgation it becomes necessary to evaluate its current validity and adequacy to address the potential ethical dilemmas in the existing country’s health research.Some gaps, contradictions, and aspects that require a deep review are detailed in this paper from a wide conception of health research areas and methods. After discussing the main weaknesses and inaccuracies, some alternatives are proposed to adjust the resolution to the present needs in health research with human beings.La verificación del cumplimiento de los principios éticos en la investigación en salud legitima su ejercicio ante la sociedad y posibilita la resolución de dilemas éticos frente a nuevos intereses y métodos de investigación.En Colombia, la Resolución 8430 de 1993 es una de las principales pautas éticas que regulan la investigación en salud. Dado que no ha sido revisada ni actualizada desde su adopción, se hace necesario valorar su vigencia y suficiencia para abordar los potenciales dilemas éticos que se plantean actualmente en la investigación en salud en el país.En este contexto, se detallan algunos vacíos y contradicciones, así como aspectos que requieren de una revisión profunda, a partir de una concepción amplia de las áreas y los métodos de investigación en salud.Tras discutir las principales falencias e imprecisiones, se proponen alternativas para que la Resolución responda a las necesidades actuales del país frente a la ética en investigación en salud con seres humanos
Retenção de água no solo no feijão-comum em sucessão de difentes adubos verdes / Water retention in the soil in the common bean in succession of different green fertilizers
A utilização de plantas de cobertura como adubo verde, tem a capacidade de melhorar os atributos do solo (condições físicas, químicas, biológicas e estruturais), e minimizar a utilização de adubos químicos. Objetivou-se com este trabalho, analisar a retenção de água no solo na cultura do feijão em sucessão a diferentes adubos verdes no sistema de plantio direto. O trabalho se desenvolveu no campo experimental da Fazenda Escola do IF Goiano Campus Iporá, com solo classificado como Neossolo quartzarênico argiloso. O delineamento experimental utilizado foi o de Blocos Inteiramente Casualizados, com cinco tratamentos e duas repetições. Os tratamentos foram constituídos de cinco adubos verdes: Crotalária s. (Crotalária spectabilis), Crotalária o. (Crotalária ochroleuca), Lab-lab (Dolichos lablab), Mavuno (Híbrido de Urochloa brizantha e Urochloa Ruziziensis) e Áries (Panicum maximum Jacq), em parcelas com 5 m largura por 8 metros de comprimento. Para avaliar a retenção foram instalados tensiômetros em cada parcela nas profundidades de 15 e 30 cm no plantio do feijão- comum em sucessão dos adubos verdes. Conclui-se que o capim Mavuno foi o adubo verde que apresentou maior produção de fitomassa e que o capim Aries, com a segunda maior produção de fitomassa, apresentou maior retenção de água no solo ao longo do ciclo do feijão