La infección del tracto urinario (ITU) es una patología frecuente en la infancia y una de las causas más comunes de consulta en el servicio de urgencias pediátricas. Las manifestaciones clínicas pueden ser inespecíficas en los lactantes y niños pequeños; sin embargo, en los niños mayores la sintomatología es más específica, con la aparición de fiebre, dolor en flanco, puño percusión renal positiva y signos de irritación vesical como disuria, polaquiuria, tenesmo e incontinencia. El diagnóstico definitivo confirmatorio se realiza mediante cultivo de orina. El conocimiento sobre los factores de riesgo, junto con ciertas consideraciones de valoración clínica y epidemiologia, son esenciales para encaminar las estrategias preventivas de las infecciones urinarias.
CASE REPORT | Abstract |Neurocysticercosis is the most common parasitic infection in the central nervous system. This disease is presented when a person ingests Taenia solium eggs excreted in feces from another individual infected with taeniasis. In 50% of the cases, neurocysticercosis takes place in the brain parenchyma, and its appearance is less frequent in the posterior fossa and the spinal cord.The case of a patient with an atypical location of the parasite at the medulla oblongata, between parenchymal and spinal areas, is presented. The initial symptoms were common but its subsequent manifestations were similar to those of Bruns syndrome. Furthermore, the epidemiological profile of neurocysticercosis in Colombia, its control measures and prevention strategies were reviewed in this study. Keywords | Resumen |La neurocisticercosis es la infección parasitaria más frecuente en el sistema nervioso central; esta enfermedad se desarrolla cuando los huevos de Taenia solium excretados en heces de un individuo con teniasis son ingeridos por otra persona. La presentación de la neurocisticercosis tiene lugar en el parénquima cerebral en 50% de los casos, mientras que en la fosa posterior y en la médula espinal es menos frecuente.Se presenta el caso de un paciente que tuvo una ubicación exótica del parásito a nivel del bulbo raquídeo concomitando con la forma parenquimatosa y medular; las manifestaciones clínicas iniciales fueron las comunes, pero sus síntomas posteriores se caracterizaron por el síndrome de Bruns. Además, durante la investigación se revisó el perfil epidemiológico de la neurocisticercosis en Colombia y las medidas de control y de prevención. IntroductionThe most common parasitic infection of the central nervous system (CNS) is neurocysticercosis (NCC), caused by the larvae of the Taenia solium (1). In developing countries, there is a 90% prevalence of cases in which this disease is neglected (2), but due to the ease and accessibility of transportation and the large groups of migrant population, this disease can also be found in developed countries (3,4). The World Health Organization (WHO) considers cysticercosis as a serious public health issue (5,6). This infection appears in the brain parenchyma in 50% of cases, and less frequently, in intraventricular, subarachnoid, eye and cord areas (6).The case described in this research presents an unusual appearance in the medulla oblongata, along with the parenchymal and spinal form. NCC symptoms are very diverse, including, among the most frequently observed and described by the authors, headaches and convulsions (7). 80% of infections are completely asymptomatic and when symptoms arise, they are non-specific depending on the number of injuries, the development stage of the cysticercus and the larval location (8). The presence of cysticerci in the brain may be prolonged -10 to 20 years in asymptomatic state-(9,10) although, in many occasions, when headaches occur, this symptom is not considered important. The diagnosis of NCC is often confused with incide...
Introducción. La neurofibromatosis tipo 1 (NF1) es una condición autosómica dominante que presenta una expresividad fenotípica variable, con manifestaciones que van desde lesiones cutáneas hasta compromiso funcional. Se manifiesta clínicamente durante la infancia y la adolescencia; su gen codifica una proteína, la neurofibromina, que actúa como un supresor tumoral en condiciones normales regulando, a su vez, otra proteína que estimula el crecimiento y proliferación celular. En caso de alteración se podrían presentar diferentes procesos tumorales como el que se evidencia en un reducido número de casos. Presentación de caso. Paciente masculino de 20 años con NF1, quien presentaba lesiones cutáneas como manchas color café con leche y desarrolló un glioblastoma, lo cual sucede de manera infrecuente. Discusión. Para obtener el diagnóstico confirmado se incluyen métodos de inmunohistoquímica que contribuyen en gran medida al pronóstico puesto que la mediana de supervivencia global de los pacientes de glioblastoma es mayor en pacientes con NF1 que aquellos sin dicha entidad patológica. Conclusión. El diagnóstico temprano de las lesiones favorece un manejo a tiempo de la NF1. Estos pacientes requieren un manejo integral e interdisciplinar para favorecer su rehabilitación total.
Metabolism alterations are associated with the loss of mitochondrial function in tumor cells. Current research discuss whether such loss is evident in function itself, or if cells can provide maximum stability to its functions. More studies are needed to determine the behavior of cancer in mitochondria. Tumor cells experience a limitation of oxygen and mutations in oncogenes, tumor suppressor genes and enzymes of the glycolytic pathway and/or mitochondrial oxidative metabolism, thus allowing the formation of aggressive cancer. This article is the result of a literature review of the scientific evidence that has been presented in the latest research on cancer and mitochondrial function.
El síndrome pospoliomielitis se reconoce como un trastorno neurológico que aparece décadas después de un episodio agudo de poliomielitis y disminuye la capacidad funcional hasta afectar las actividades cotidianas. El evento ocurre en un 20-80% de las personas que fueron afectadas por el virus de la poliomielitis, es más frecuente en las mujeres y existe una relación directa entre el riesgo de padecer este síndrome y el grado de severidad de las secuelas de la polio. El objetivo de este artículo es la presentación de dos casos clínicos de pacientes que presentaron este síndrome después de cerca de cuarenta años de haber presentado un episodio de poliomielitis. Se cuestiona el concepto de la poliomielitis como una enfermedad estática; además, en los casos presentados esta patología constituye un proceso de difícil diagnóstico y manejo. El impacto psicológico y funcional en los pacientes se asume como un reto para el profesional de salud, puesto que se deben identificar las necesidades clínicas y reducir las barreras asistenciales existentes en la actualidad.
Gram-negative bacilli and cocci bacteria produce and release endotoxins, which are lipopolysaccharides found in the outer membrane of the cell wall. These endotoxins are responsible for releasing a series of inflammatory mediators such as IL1, TNFα and proteases, as well as lipid mediators such as prostaglandins, leukotrienes, thromboxanes and platelet-activating factor, ultimately activitating immune response cells like leukocytes, macrophages and platelets. These cells amplify the response to shock, generate a procoagulant state and produce alterations at the cellular level, for example, damage to the endothelium, which in the end benefit and worsen the state of septic shock (Figure 1).
Metabolism alterations are associated with the loss of mitochondrial function in tumor cells. Current research discuss whether such loss is evident in function itself, or if cells can provide maximum stability to its functions. More studies are needed to determine the behavior of cancer in mitochondria. Tumor cells experience a limitation of oxygen and mutations in oncogenes, tumor suppressor genes and enzymes of the glycolytic pathway and/or mitochondrial oxidative metabolism, thus allowing the formation of aggressive cancer. This article is the result of a literature review of the scientific evidence that has been presented in the latest research on cancer and mitochondrial function.
<p>Introduction. Platelets are not strictly “cells”, they are cytoplasmic fragments that are produced by the division of the cytoplasm of the megakaryocytes in the bone marrow; among its properties of adhesion and aggregation, platelets are involved in primary hemostasis, thrombosis, repair and tissue regeneration processes. To modify the pro-thrombotic platelet properties aspirin (ASA) is provided, which allows blocking the synthesis of prostaglandins in order to irreversibly inhibit the COX1 and prevent platelet aggregation. The current guidelines govern the use of aspirin in the prevention of cardiovascular diseases. Objective. In this review paper graphics were created to facilitate the understanding of platelets and its interaction with various physiological and pathological processes. Methodology. A literature review of a total of 74 documents such as articles and books was carried out; it was obtained from bibliographic searches in the following databases: Scielo, NEJM, Elsevier, Pubmed, Redalyc, Wiley, Springer, ScienceDirect, BVS, Nature Riviews, EBSCO, Naxos (databases offered by the University of Cauca). Mendeley free access program was used for the management and organization of information. Conclusion. It is recognized the role of platelet in different physiopathological processes and thus its interaction with aspirin, preventing its aggregation and thrombus formation in the spleen and other organs, this way contributing to the prevention of future cardiovascular events.</p>
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