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2.
Pediatr Allergy Immunol ; 27(3): 269-75, 2016 05.
Artigo em Inglês | MEDLINE | ID: mdl-26681231

RESUMO

BACKGROUND: Food protein-induced enterocolitis (FPIES) is an uncommon, non-IgE-mediated food allergy that usually debuts in infancy with profuse vomiting, lethargy, and pallor 2-4 h following ingestion of the offending food. Its immune mechanism is not known. We aimed to describe the clinical features and outcome of children with fish-FPIES as well as to investigate on cellular immune response implicated. METHODS: Prospective and follow-up clinical study of children with FPIES by fish over a period between 2004 and 2013 was conducted. Measurement in vitro of both cytokine production in peripheral blood mononuclear cells (PBMCs) and expression of HLA-DR in monocyte-derived dendritic cells stimulated with fish extracts. RESULTS: Sixteen children (seven male and nine female) were included, with a mean age of onset at 10 months. Diagnosis was established after a median of 4 reactions. Twelve patients were treated in emergency room, and two were admitted in intensive care. Patch tests were positive in six patients. Skin prick tests (SPTs) and specific IgE to all fish tested were negative. Only three children reached tolerance at a mean age of 4.5 years. Eight children avoided fish because of positive oral food challenge (OFC) after 6 years of age. Other patients have not been challenged because of parent refusal to OFC or a recent diagnosis. TNF-α was increased in patients, and a significant elevation of the HLA-DR marker was also observed in these patients vs. control donors. CONCLUSIONS: FPIES caused by fish in many cases presents with severe clinical manifestations. Patch test has poor diagnostic value, and OFC is the gold standard to test tolerance. The cytokine TNF-α may be implicated in the clinical symptoms. Higher expression of HLA-DR in dendritic cells has also been detected in our patients.


Assuntos
Proteínas Alimentares/imunologia , Enterocolite/diagnóstico , Proteínas de Peixes/imunologia , Hipersensibilidade Alimentar/diagnóstico , Animais , Citocinas/metabolismo , Proteínas Alimentares/efeitos adversos , Enterocolite/etiologia , Enterocolite/imunologia , Feminino , Proteínas de Peixes/efeitos adversos , Peixes , Seguimentos , Hipersensibilidade Alimentar/imunologia , Antígenos HLA-DR/metabolismo , Humanos , Lactente , Leucócitos Mononucleares/imunologia , Masculino , Estudos Prospectivos
3.
Sensors (Basel) ; 15(7): 15611-39, 2015 Jul 01.
Artigo em Inglês | MEDLINE | ID: mdl-26140349

RESUMO

As we get into the Internet of Things era, security and privacy concerns remain as the main obstacles in the development of innovative and valuable services to be exploited by society. Given the Machine-to-Machine (M2M) nature of these emerging scenarios, the application of current privacy-friendly technologies needs to be reconsidered and adapted to be deployed in such global ecosystem. This work proposes different privacy-preserving mechanisms through the application of anonymous credential systems and certificateless public key cryptography. The resulting alternatives are intended to enable an anonymous and accountable access control approach to be deployed on large-scale scenarios, such as Smart Cities. Furthermore, the proposed mechanisms have been deployed on constrained devices, in order to assess their suitability for a secure and privacy-preserving M2M-enabled Internet of Things.

4.
Sensors (Basel) ; 14(6): 9582-614, 2014 May 30.
Artigo em Inglês | MEDLINE | ID: mdl-24887040

RESUMO

Nowadays, buildings are increasingly expected to meet higher and more complex performance requirements. Among these requirements, energy efficiency is recognized as an international goal to promote energy sustainability of the planet. Different approaches have been adopted to address this goal, the most recent relating consumption patterns with human occupancy. In this work, we analyze what are the main parameters that should be considered to be included in any building energy management. The goal of this analysis is to help designers to select the most relevant parameters to control the energy consumption of buildings according to their context, selecting them as input data of the management system. Following this approach, we select three reference smart buildings with different contexts, and where our automation platform for energy monitoring is deployed. We carry out some experiments in these buildings to demonstrate the influence of the parameters identified as relevant in the energy consumption of the buildings. Then, in two of these buildings are applied different control strategies to save electrical energy. We describe the experiments performed and analyze the results. The first stages of this evaluation have already resulted in energy savings of about 23% in a real scenario.

6.
Acta méd. colomb ; 23(5): 305-8, sept.-oct. 1998. ilus
Artigo em Espanhol | LILACS | ID: lil-292956

RESUMO

El sindrome de Melkersson Rosenthal consiste en edema recurrente de los labios, parálisis facial intermitente y lengua escrotal. Fue descrito a principios de siglo en Zuiza y la mayor parte de los casos reportados provienen de Europa, pero en la actualidad hay información de pacientes de los cinco continentes. Se describe el caso de una paciente de 53 años que consultó por edema recurrente del labio superior de tres años de evolución que no ha respondido a glucocorticoides, ni antihistaminicos. En la anamnesia se encontró que había tenido parálisis facial derecha hace ocho años, y hace un año neuritis de la rama maxilar izquierda del nervio trigémino. En el examen físico se destaca el edema blando no doloroso localizado en el lado dercho del labio superior y lengua escrotal (plicata). Como patologías asociadas refiere diabetes mellitus controlada con dieta e hipertensión arterial en tratamiento con captopril. Los análisis de laboratorio no muestran alteraciones importantes, salvo la elevación de la glicemia y la biopsia labial muestra cambios inflamatorios crónicos


Assuntos
Humanos , Síndrome de Melkersson-Rosenthal/diagnóstico , Síndrome de Melkersson-Rosenthal/etiologia , Síndrome de Melkersson-Rosenthal/fisiopatologia , Síndrome de Melkersson-Rosenthal/genética
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