Subject(s)
Humans , Societies, Medical , Therapeutics , Diseases Registries , Allergy and ImmunologyABSTRACT
Insetos como abelhas, vespas e formigas da ordem Hymenoptera podem causar reações alérgicas graves e até fatais. Esses insetos possuem venenos com componentes alergênicos e os injetam por meio de suas ferroadas, que podem causar reações locais e sistêmicas. O objetivo deste artigo é realizar uma revisão sistemática de literatura sobre as reações alérgicas às ferroadas de insetos da ordem Hymenoptera, com o intuito de analisar os mecanismos imunológicos envolvidos, as manifestações clínicas, os fatores de risco, os métodos de diagnóstico, as estratégias de prevenção e as opções terapêuticas disponíveis. Trata-se então de revisão sistemática de literatura realizada em agosto de 2023. O processo envolveu seis etapas. Os artigos foram obtidos pela busca em bases de dados, utilizando descritores em Ciências da Saúde relacionados ao tema. Foram identificados inicialmente 50 artigos, no entanto, apenas 10 deles atenderam aos critérios de inclusão. Para detecção das reações incluem-se testes cutâneos com venenos de Hymenoptera e análise do soro para IgE específica do veneno de Hymenoptera. Os fatores de risco que influenciam o resultado de uma reação anafilática incluem o intervalo de tempo entre as ferroadas, o número de ferroadas, a gravidade da reação anterior e o tipo de inseto. Esta revisão oferece uma visão abrangente das reações alérgicas às picadas de insetos Hymenoptera, contribuindo significativamente para o entendimento, diagnóstico e manejo dessas condições.
Insects of the order Hymenoptera such as bees, wasps, and ants can cause severe and even fatal allergic reactions. These insects have venom with allergenic components that they inject through their stingers, which can cause local and systemic reactions. This study aims to carry out a systematic literature review on allergic reactions to Hymenopteran stings, analyzing the immune mechanisms involved, clinical manifestations, risk factors, diagnostic methods, prevention strategies, and available therapeutic options. The literature review was conducted in August 2023, in a six-stage process. Articles were obtained by searching databases using Medical Subject Headings descriptors related to the topic. Initially, 50 articles were identified; however, only 10 of these met the inclusion criteria. We found that methods for detecting reactions include skin tests with Hymenopteran venoms and serum analysis for IgE specific to such venom. Risk factors that influence the outcome of anaphylactic reactions include the time interval between stings, the number of stings, the severity of the previous reaction, and the type of insect. This review provides a comprehensive overview of allergic reactions to Hymenopteran stings, contributing significantly to the understanding, diagnosis, and management of these conditions.
Subject(s)
Humans , Allergy and ImmunologySubject(s)
Humans , Hypersensitivity/immunology , Terminology as Topic , Disease , Allergy and ImmunologyABSTRACT
Introducción: Los estilos de aprendizaje según canales de percepción dominante del conocimiento de los estudiantes influyen en su aprendizaje. Su uso por los docentes puede favorecer o no a estudiantes con un canal específico. Objetivo: Describir la ubicación según los canales de percepción dominante del conocimiento de los estudiantes de medicina y la relación de estos con el resultado de las evaluaciones frecuentes en la asignatura Sangre y Sistema Inmune. Métodos: Se realizó una investigación en 234 estudiantes y 30 profesores de la carrera de medicina en los cursos 2020-2021 y 2022. Los estudiantes se clasificaron según los resultados de un cuestionario para identificar el predominio del canal de percepción (visuales-auditivos-kinestésicos) y a los profesores se les realizó una encuesta para determinar su percepción sobre el uso de estrategias de enseñanza diferenciales para cada canal. El procesamiento se realizó en programa SPSS 25, a través de números, porcentaje y prueba de ji al cuadrado. Resultados: Predominó el canal visual con el 48 por ciento. Existió asociación con el sexo con p = 0,0016; en varones prevaleció el canal auditivo y en hembras el visual. La relación entre los canales de percepción dominante y el rendimiento académico fue significativa con p = 0,000. Conclusiones: Prevaleció el canal de percepción dominante visual. La distribución de cada canal se asoció con el sexo y el rendimiento académico; así se lograron mejores resultados por los estudiantes con percepción dominante visual. Esto último estuvo relacionado con el predominio de acciones por parte de los docentes que potencian este canal de percepción(AU)
Introduction: Learning styles according to dominant perception channels of students' knowledge influence their learning. Their use by professors may or may not favor students with a specific channel. Objective: To describe the location according to the dominant knowledge perception channels of medical students and their relationship with the results of frequent evaluations in the subject Blood and Immune System. Methods: A research was conducted with 234 students and 30 professors of the Medicine major during the academic years 2020-2021 and 2022. The students were classified according to the results of a questionnaire to identify the perception channel predominance (visual-auditory-kinesthetic), while the professors were surveyed to determine their perception on the use of differential teaching strategies for each channel. Processing was performed in SPSS 25, using numbers, percentages and the chi-squared test. Results: The visual channel predominated, accounting for 48 percent. There was an association with sex (p=0.0016); the auditory channel prevailed among males, while the visual channel prevailed among females. The relationship between dominant perception channels and academic performance was significant (p=0.000). Conclusions: The visual dominant perception channel prevailed. The distribution of each channel was associated with sex and academic performance; thus, better results were achieved by students with visual dominant perception. The latter was related to the predominance of actions by professors that enhance this perception channel(AU)
Subject(s)
Humans , Teaching/education , Educational Measurement/methods , Allergy and Immunology/education , Academic Performance , Auditory Perception , Students, Medical , Visual Perception , Neurolinguistic ProgrammingSubject(s)
Humans , Asthma/rehabilitation , Therapeutics , Societies, Medical , Allergy and Immunology , Immunomodulating AgentsABSTRACT
Objetivos : Determinar las características clínicas y epidemiológicas de niños con hipoplasia del timo y enfermedad respiratoria en Cuba. Material y Métodos : Estudio descriptivo retrospectivo en niños con edades comprendidas entre 1 y 6 años, de ambos sexos, atendidos en la consulta de Inmunología Pediátrica del Programa de Proyección Comunitaria del Municipio Arroyo Naranjo de La Habana o en la consulta de Inmunología Pediátrica del Hospital Materno Infantil Ángel Arturo Aballí Arellano del Municipio Arroyo Naranjo La Habana, entre los meses de septiembre 2019 y agosto 2022. Se incluyeron los niños con hipoplasia tímica y con antecedentes personales de enfermedad respiratoria infecciosa o no infecciosa diagnosticadas durante el período de estudio. Resultados : No se encontró relación entre la hipoplasia tímica y la edad o el sexo; se encontró mayor frecuencia de la hipoplasia tímica leve y moderada en niños con desarrollo de enfermedad respiratoria grave. Los factores con mayor frecuencia descritos en la enfermedad respiratoria complicada fueron la lactancia materna inefectiva, los antecedentes patológicos personales de atopia, el embarazo de riesgo, la prematuridad, el humo de tabaco en el ambiente y la asistencia a círculo infantil o a casa de cuidado infantil. Conclusiones : El desarrollo de hipoplasia tímica no mostró relación con la edad y el sexo. Se describieron varias condiciones con mayor frecuencia en niños con hipoplasia tímica y con enfermedad respiratoria complicada. La frecuencia de la hipoplasia tímica leve y moderada fue mayor en los pacientes con enfermedad respiratoria grave.
SUMMARY Objective : To determine the clinical and epidemiologic features of children with thymic hypoplasia and respiratory illnesses in Cuba. Methods : A retrospective study was conducted among children of 1-6 years of age of both sexes attended at a Pediatric Immunology Program of Hospital Materno Infantil Ángel Arturo Aballí Arellano in Habana, Cuba from September 2019 to August 2022. Children with thymic hypoplasia with and without a history of a respiratory illness either infectious or non-infectious were included. Results : No association between age and sex with thymic hypoplasia but an association was found with children with a severe respiratory illness. Factors associated with a severe respiratory illness were ineffective breastfeeding, history of an atopic condition, pregnancy of high risk, prematurity and exposure to tobacco smoke. Conclusions : Thymic hypoplasia was not associated with age or sex. An association with mild-moderate thymic hypoplasia was found with a severe respiratory illness.
Subject(s)
Humans , Male , Female , Child, Preschool , Pediatrics , Respiratory System , Respiratory Tract Diseases , Thymus Gland , Ultrasonography , Allergy and Immunology , CubaABSTRACT
El Eritema multiforme (EM) o eritema polimorfo es una enfermedad aguda de la piel de naturaleza inmunológica con o sin compromiso de mucosas, que puede comportarse como crónica recurrente. Se presenta con lesiones cutáneas en diana distintivas, a menudo acompañado de úlceras o bullas en mucosas (oral, genital u ocular). Entre sus formas clínicas se distingue: una forma menor caracterizado por un síndrome cutáneo leve y su forma mayor que se manifiesta como una afectación cutánea con daño mucoso marcado. Entre sus principales diagnósticos diferenciales se encuentran el Síndrome de Stevens-Johnson (SSJ) y Síndrome de Lyell (Necrólisis epidérmica tóxica (NET)). Tiene una incidencia estimada < 1%, siendo su forma mayor levemente más frecuente que su forma menor (0.8-6 por millón/año). Puede darse a cualquier edad, presentando un peak de incidencia entre los 20 y 30 años, predominando ligeramente el sexo masculino con una proporción 3:2, sin predilección racial. Su presentación en edad pediátrica es rara, más aún en la primera infancia. En esta población es más frecuente el EM menor recurrente. En el presente texto se reporta un caso de EM en población pediátrica como una rara forma de presentación exantemática, abordado en el Servicio de Pediatría del Complejo Asistencial Dr Victor Rios Ruiz (CAVRR)en la ciudad de Los Ángeles, Chile en el presente año.
Erythema multiforme (EM) also known as polymorph erythema is an acute skin disease of immunological nature with or without mucous membrane involvement, which may behave as chronic recurrent. It presents with distinctive targets like skin lesions, often together with ulcers or bullae in mucous membranes (oral, genital or ocular). Among its clinical forms are: a minor form characterized by a mild skin syndrome and its major form that manifests as a skin disease with marked mucosal damage. Among its main differential diagnoses are Stevens-Johnson Syndrome (SJS) and Lyell Syndrome (Toxic Epidermal Necrolysis (TEC)). It has an estimated incidence < 1%, with its major form being slightly more frequent than its minor form (0. 8-6 per million/year). It can occur at any age, presenting a peak incidence at the age between 20 and 30 years, with a slight predominance of males with a 3:2 ratio, without racial predilection. Its presentation in pediatric age is rare, even more so in early childhood. Minor recurrent EM is more common in this population. This paper reports a case of EM in the pediatric population as a rare form of exanthematic presentation, addressed at the Department of Pediatrics of the Complejo Asistencial Victor Rios Ruiz (CAVRR) in the city of Los Angeles, Chile this year.
Subject(s)
Humans , Female , Child , Erythema Multiforme/diagnosis , Erythema Multiforme/etiology , Erythema Multiforme/therapy , Adrenal Cortex Hormones/therapeutic use , Stevens-Johnson Syndrome , Allergy and Immunology , Exanthema/etiology , Exanthema/ethnologyABSTRACT
Desde la perspectiva clínica, la atopia o atopía es un fenómeno dual, de una parte tiene la connotación de una repuesta inmunitaria genéticamente determinada, y, de otro lado, una expresión clínica enmarcada en la denominada marcha atópica; con la identificación de diversos signos, síntomas o entidades clínicas, que conforman múltiples fenotipos que pueden expresarse en el curso de vida del paciente atópico se identifican más avances sustantivos en la descripción de haplotipos condicionantes de la respuesta inmunitaria y sus variantes, así como de la diversa presentación de enfermedades atópicas y de la respuesta a los tratamientos utilizados. Objetivo: realizar una actualización de la atopia y de los avances inmunopatológicos / inmunogenéticos, en interrelación a factores propios (físicos y psíquicos) y de interacción con el microbioma y el ambiente externo. Material y Métodos: se realizó una búsqueda en diferentes fuentes de acceso electrónico y manual, utilizando como descriptores clave: atopia, hipersensibilidad, respuesta inmune, microbioma, epigenética, autoinmunidad. Conclusión: Se reconoce a la alergia como la expresión clínica de los mecanismos de respuesta inmunitaria, frente a posibles invasores (alérgenos) que proceden del ambiente externo. Un error inmunológico de respuesta exagerada, generalmente mediada por células Th2 e IgE, por intolerancia antigénica es la explicación de la atopia...(AU)
Subject(s)
Humans , Allergy and Immunology , Hypersensitivity, Immediate , Databases, BibliographicABSTRACT
Introducción: Los exosomas son vesículas extracelulares de tamaño nanométrico, que se generan cuando los endosomas multivesiculares se fusionan con la membrana plasmática y el contenido de las vesículas intraluminales se libera en el espacio extracelular. Son producidos por casi todos los tipos de células, en condiciones fisiológicas y patológicas. Transportan proteínas, lípidos y ácido ribonucleico (ARN) no codificante, desde la célula madre hasta la célula receptora, estos son considerados un punto clave en la regeneración de tejidos, lo que se ha demostrado en una serie de estudios, con diferentes tejidos corporales, como piel, cartílago, pancreático y tejidos cardiovasculares. Objetivo: Explicar los aspectos generales y posibles usos de los exosomas en el campo médico. Métodos: Se realizó una búsqueda de información mediante consulta en las bases de datos SciELO PubMed, Science Direct y Lilacs, en los idiomas español e inglés, con diferentes combinaciones de palabras claves y términos MESH como: exosomes, neovascularization, wound healing, immunity, micro RNA, immunology, therapy, classification. Se efectuó un análisis y resumen de la información revisada. Conclusiones: En la actualidad, los exosomas se han convertido en objeto de investigación para diversos tratamientos, medicamentos y uso como marcadores moleculares. Se destacan en terapias contra el cáncer, la inmunomodulación, la estimulación o supresión de la angiogénesis, regeneración cutánea, cicatrización y curación de heridas; por lo que de forma general resultan prometedores en el ámbito de las ciencias médicas(AU)
Introduction: Exosomes are nano-sized extracellular vesicles, which are generated when multivesicular endosomes fuse with the plasma membrane and the content of intraluminal vesicles released into the extracellular space. Are produced by almost all types of cells, under physiological and pathological conditions and they transport proteins, lipids and non-coding RNA (ribonucleic acid), from the stem cell to the recipient cell, these are considered a key point in tissue regeneration, which has been shown in a series of studies, with different body tissues, such as skin, cartilage, pancreatic and cardiovascular tissues. Objective: To explain the general aspects and possible uses of exosomes in the medical field. Methods: A search for information was carried out by consulting the Scielo, PubMed, ScienceDirect and Lilacs databases, in Spanish and English, with different combinations of keywords and MESH terms such as: exosomes, neovascularization, wound healing, immunity, microRNA, immunology, therapy, classification. Then, an analysis and summary of the reviewed information was carried out. Conclusions: Currently, exosomes have become the object of research for various treatments, drugs, and their use as molecular markers. They stand out in cancer therapies, immunomodulation, stimulation or suppression of angiogenesis, skin regeneration, and wound healing, which is why they are generally promising in the field of medical sciences(AU)
Subject(s)
Endosomes , RNA, Untranslated , Allergy and Immunology , Wound HealingABSTRACT
O angioedema hereditário é uma doença autossômica dominante caracterizada por crises recorrentes de edema que acometem o tecido subcutâneo e o submucoso, com envolvimento de diversos órgãos. Os principais locais afetados são face, membros superiores e inferiores, as alças intestinais e as vias respiratórias superiores. Em decorrência da falta de conhecimento dessa condição por profissionais de saúde, ocorre atraso importante no seu diagnóstico, comprometendo a qualidade de vida dos indivíduos afetados. Além disso, o retardo no diagnóstico pode resultar em aumento da mortalidade por asfixia devido ao edema de laringe. A natureza errática das crises com variação do quadro clínico e gravidade dos sintomas entre diferentes pacientes, e no mesmo paciente ao longo da vida, se constitui em desafio no cuidado dos doentes que têm angioedema hereditário. O principal tipo de angioedema hereditário é resultante de mais de 700 variantes patogênicas do gene SERPING1 com deficiência funcional ou quantitativa da proteína inibidor de C1, porém nos últimos anos outras mutações foram descritas em seis outros genes. Ocorreram avanços importantes na fisiopatologia da doença e novas drogas para o tratamento do angioedema hereditário foram desenvolvidas. Nesse contexto, o Grupo de Estudos Brasileiro em Angioedema Hereditário (GEBRAEH) em conjunto com a Associação Brasileira de Alergia e Imunologia (ASBAI) atualizou as diretrizes brasileiras do angioedema hereditário. O maior conhecimento dos diversos aspectos resultou na divisão das diretrizes em duas partes, sendo nessa primeira parte abordados a definição, a classificação e o diagnóstico.
Hereditary angioedema is an autosomal dominant disease characterized by recurrent attacks of edema that affect the subcutaneous tissue and the submucosa, involving several organs. The main affected sites are the face, upper and lower limbs, gastrointestinal tract, and upper airways. Because health professionals lack knowledge about this condition, there is a significant delay in diagnosis, compromising the quality of life of affected individuals. Furthermore, delayed diagnosis may result in increased mortality from asphyxia due to laryngeal edema. The erratic nature of the attacks with variations in clinical course and severity of symptoms among different patients and in one patient throughout life constitutes a challenge in the care of patients with hereditary angioedema. The main type of hereditary angioedema results from more than 700 pathogenic variants of the SERPING1 gene with functional or quantitative deficiency of the C1 inhibitor protein, but in recent years other mutations have been described in six other genes. Important advances have been made in the pathophysiology of the disease, and new drugs for the treatment of hereditary angioedema have been developed. In this context, the Brazilian Study Group on Hereditary Angioedema (GEBRAEH) in conjunction with the Brazilian Association of Allergy and Immunology (ASBAI) updated the Brazilian guidelines on hereditary angioedema. Greater knowledge of different aspects resulted in the division of the guidelines into two parts, with definition, classification, and diagnosis being addressed in this first part.
Subject(s)
Humans , Therapeutics , Classification , Diagnosis , Angioedemas, Hereditary , Quality of Life , Asphyxia , Signs and Symptoms , Societies, Medical , Pharmaceutical Preparations , Glycoproteins , Laryngeal Edema , Allergy and Immunology , MutationABSTRACT
A urticária crônica é uma condição que afeta mais de um milhão de brasileiros, com grande impacto na qualidade de vida. Mesmo com diretrizes bem difundidas para o seu diagnóstico e tratamento, seu manejo pode ser desafiador em pacientes pediátricos, idosos e gestantes. Para auxiliar o médico especialista nestes casos, o Departamento Científico de Urticária da Associação Brasileira de Alergia e Imunologia elaborou esta revisão com as principais dúvidas e dificuldades referentes ao tema nestes grupos de pacientes.
Chronic urticaria is a condition that affects more than a million Brazilians with a significant impact on quality of life. Although there are well-established guidelines for diagnosis and treatment, the management of chronic urticaria may be challenging in pediatric, older, and pregnant patients. With the purpose of helping specialists manage these cases, the Urticaria Scientific Department of the Brazilian Association of Allergy and Immunology prepared this review with the most common doubts and difficulties about this topic in those patient groups.
Subject(s)
Humans , Pregnancy , Infant , Child, Preschool , Child , Aged , Aged, 80 and over , Pregnant Women , Diagnosis, Differential , Omalizumab , Chronic Urticaria , Histamine H1 Antagonists , Patients , Physicians , Quality of Life , Societies, Medical , Therapeutics , Urticaria , Lactation , Diagnosis , Allergy and Immunology , AngioedemaABSTRACT
A urticária aguda é uma causa frequente de consulta com alergistas, caracterizada por urticas e/ou angioedema. Embora autolimitada e benigna, pode causar desconforto significativo e raramente representar uma doença sistêmica grave ou reação alérgica com risco de vida. Nesta revisão, elaborada pelo Departamento Científico de Urticária da Associação Brasileira de Alergia e Imunologia, foram abordadas as principais questões referentes ao tema para auxiliar o médico especialista e generalista.
Acute urticaria is a frequent cause of consultations with allergists, being characterized by wheals and/or angioedema. Although self-limited and benign, it may cause significant discomfort and uncommonly represent a serious systemic disease or life-threatening allergic reaction. In this review prepared by the Urticaria Scientific Department of the Brazilian Association of Allergy and Immunology, the main questions about this topic are addressed to help specialists and general practitioners.