ABSTRACT
El dolor abdominal agudo es uno de los síntomas por los que un paciente asiste al servicio de urgencias de cualquier hospital, a nivel mundial, representando entre un 5 y 10% del total de consultas, constituyéndose para el médico de urgencias y especialistas interconsultados, un reto, dado que encierra varias patologías, que pueden ser o no quirúrgicas y que de no ser diagnosticadas, correcta y oportunamente, se pueden convertir en fatales, como la apendicitis, la condición patológica y quirúrgica, la que, frecuentemente, se ve enfrentado el cirujano general. El paciente, se puede presentar con signos y síntomas muy variados, que van desde un cuadro claro de apendicitis o no tener signos ni síntomas que sugieran, como diagnóstico, esta patología, por lo cual, se han desarrollado escalas que faciliten o aporten ayuda al médico para un correcto diagnóstico y posterior tratamiento. La escala de Alvarado hace parte de estas ayudas diagnósticas, siendo un método económico, no invasivo, rápido y confiable. Se evaluó por medio de este proyecto, la validez de la escala en la USS Tunal de IIII nivel, al ser uno de los hospitales más grandes y concurridos de Bogotá; para ello, se tomó una muestra de 161 pacientes y valorando cada parámetro de la escala, además, de comparar el puntaje dado por la misma y el diagnóstico histopatológico. Los resultados permiten concluir que la escala es sensible, pero no específica para el diagnóstico de apendicitis.
Acute abdominal pain is one of the symptoms which a patient attends the emergency room of any hospital worldwide, representing a 5 to 10% of those consultations; this represents for the emergency doctor and specialists interconsulted a challenge, because it contains several conditions that may or may not be surgical and not be diagnosed properly and promptly can be fatal, within these, is appendicitis, pathological and surgical condition which most often is faced the surgeon general. The patient may present with signs and varied symptoms ranging from a clear picture of appendicitis, or have no signs or symptoms suggestive as this pathology diagnosis; so scales have been developed to facilitate or provide help to the doctor for a correct diagnosis and subsequent treatment; Alvarado makes the scale of these diagnostic aids, being a non-invasive, fast and reliable economical method. Was evaluated by means of this project the validity of the scale in the USS Tunal IIII level to be one of the largest and busiest hospitals in Bogota, for this sample of 161 patients was taken Hospital and rated each parameter in addition to comparing the scores given by the same scale and histopathological diagnosis. The results show that the scale is sensitive but not specific for the diagnosis of appendicitis.
ABSTRACT
Abstract Lignocellulose is the most abundant environmental component and a renewable organic resource in soil. There are some filamentous fungi which developed the ability to break down and use cellulose, hemicellulose and lignin as an energy source. The objective of this research was to analyze the effect of three nitrogen resources (ammonium sulfate, saltpetre, soybean) in the holocellulolitic activity of Lentinula edodes EF 50 using as substrate sawdust E. benthamii. An experimental design mixture was applied with repetition in the central point consisting of seven treatments (T) of equal concentrations of nitrogen in ammonium sulfate, potassium nitrate and soybean. The enzymatic activity of avicelase, carboxymetilcellulase, β-glucosidase, xylanases and manganese peroxidase was determined. The humidity, pH, water activity (aw) and qualitative analysis of mycelial growth in 8 times of cultivation were evaluated. The results showed negative effect on enzyme production in treatments with maximum concentration of ammonium sulfate and potassium nitrate. The treatments with cooked soybean flour expressed higher enzymatic activities in times of 3, 6 and 9 days of culture, except in the activity of manganese peroxidase. The highest production was observed in the treatment with ammonium sulfate, and soybean (83.86 UI.L–1) at 20 days of cultivation.
Resumo Lignocelulose é o componente mais abundante do meio ambiente e recurso orgânico renovável no solo. Alguns fungos filamentosos têm desenvolvido a habilidade de degradar e utilizar celulose, hemicelulose e lignina como fonte de energia. O objetivo deste trabalho foi analisar o efeito de três fontes de nitrogênio (sulfato de amônio, nitrato de potássio e farelo de soja) na atividade enzimática de Lentinula edodes EF 50 utilizando como substrato serragem de E. benthamii. Foi aplicado um planejamento experimental de mistura com três repetições no ponto central constituído de sete tratamentos (T) de iguais concentrações em nitrogênio de sulfato de amônia, nitrato de potássio e farinha de soja cozida. Foram determinadas a atividade enzimática da avicelase, carboximetilcelulase, β-glicosidase, xilanases e manganês peroxidase. Foram avaliados o teor de umidade, pH, atividade de água (aw) e análise qualitativa do crescimento micelial em 8 tempos de cultivo. Os resultados mostraram efeito negativo na produção das enzimas nos tratamentos com máxima concentração de sulfato de amônia e nitrato de potássio. Os tratamentos com farinha de soja cozida expressaram maiores atividades enzimáticas, nos tempos de 3, 6 e 9 dias de cultivo exceto na atividade do manganês peroxidase. A maior produção foi observada no tratamento com sulfato de amônia e farinha de soja cozida (83.86 UI.L–1) em 20 dias de cultivo.
Subject(s)
Biomass , Lignin/pharmacology , Nitrogen/metabolism , Shiitake Mushrooms/enzymology , Shiitake Mushrooms/growth & development , Ammonium Sulfate/metabolism , Eucalyptus/chemistry , Nitrates/metabolism , Potassium Compounds/metabolism , Glycine max/chemistry , Wood/analysisABSTRACT
The goal of the present study was to know the chemical characteristics of the moss Sphagnum magellanicum (S.M.) growing in the southern part of Chile, spreading approximately. in a geographic area of 500.000 Has. Very few antecedents are reported in the literature concerning the functional properties of this resource, with the exception of the water absorption and holding capacity. Many of the industrial or agricultural uses of this moss are strongly related with this characteristic. Looking for other alternatives of utilization, it has been planned its incorporation to staple foods as a source of dietary fiber. But first it is necessary to know its chemical characteristics Representative samples of this material were submitted to different chemical analysis such as proximal analysis, fractional fiber analysis and anti nutrient factors.. Results of those analysis show the high amount of dietary fiber founded in this resource (77 per cent), higher than reported data for other traditional fiber sources such as lupin bran, rice hull, barley hull, oat bran, etc. Finally it is important emphasize the absence of antinutrient factor in this moss, that could make feasible its use for human nutrition.
Subject(s)
Humans , Dietary Fiber , Nutritive Value , Dietary Fiber/analysisABSTRACT
La obtención y caracterización de tumores colorrectales humanos, xenotrasplantdos en ratones atímicos constituye una práctica importante de la investigación oncológica contemporánea, cuyo empleo permitió obtener en nuestras condiciones el crecimiento de 9 (33 %) de los 27 tumores implantados, 5 de los cuales (55,5 %) constituyen ya tumores establecidos en tres o más pases seriados, sin que por ello se observen variaciones en sus características histológicas, grado de diferenciación o expresión del antígeno carcinoembrionario (CEA). Ninguna correlación entre el crecimiento tumoral en el ratón atímico y diversos factores epidemiológicos (raza, sexo y edad), clínicos (sintomatología, tiempo de evolución y estadiamiento) y morfofuncionales (tipo histológico, diferenciación y expresión CEA). puede ser establecida como criterio predictivo del comportamiento tumoral después del trasplante. La localización anatómica de la lesión primaria, sin embargo, mostró evidencias de un mejor comportamiento al xenotrasplante cuando los tumores procedían del colon proximal (ciego)