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Id: biblio-1165154
Autor: Pérez Elisa; Ruggieri Víctor; Monges Soledad; Loos Mariana; Caraballo Roberto; Yerga Andrés; Rugilo Carlos; Vincent Angela; Arroyo Hugo A.
Título: Encefalitis aguda mediada por anticuerpos contra el receptor ionotrópico de glutamato activado por N-metil-D-aspartato (NMDAR): análisis de once casos pediátricos en Argentina (Premio Benito Yelín) / [Acute encephalitis anti-ionotropic glutamate receptor activated N-methyl-D-aspartate (NMDAR): analysis of eleven pediatric cases in Argentina (Benito Yelín Award)].
Fonte: Medicina (B.Aires);73 Suppl 1:1-9, 2013.
Idioma: es.
Resumo: Encephalitis are an inflammatory processes of various origin, among which include autoimmune origin. The identification of antibodies against the N-methyl-D- aspartate, allowed clinical immunological characterization of an entity susceptible to immunomodulatory therapy. Originally described in young women associated with ovarian teratoma, is now a recognized entity in children even in the absence of detectable tumors. The aim of the study was conducted through review of medical records, was to describe the clinical, developmental and findings in further studies of eleven children with confirmed diagnosis of this entity through identification of specific antibodies. All debuted with psychiatric symptoms in nine associating seizures, and two extrapyramidal movements. In the evolution of language all had commitment nine severe autonomic symptoms, one with hypoventilation and requirements of ARM. Brain MRI was abnormal in three. Eight had voltage EEG asymmetry and / or amplitude, three of them had spikes. Six had CSF pleocytosis and three of seven positive oligoclonal bands. Five IgM serology for mycoplasma were positive. CPK increase occurred in conjunction with antisychotics in five. With immunomodulatory treatment, five had complete recovery three behavioral disorders / cognitive deficits and one severe. A patient's clinical picture resolved without treatment. In any associated tumor was detected. We conclude that in front of a child with acute encephalopathy and clinical support this entity after infectious cause were ruled out, immunomodulatory therapy should be started early, avoid the use of antipsychotic drugs and search for possible hidden tumors.
Descritores: Anticorpos/imunologia
Encefalite Antirreceptor de N-Metil-D-Aspartato/imunologia
Receptores de N-Metil-D-Aspartato/imunologia
-Argentina
Convulsões/fisiopatologia
Criança
Doença Aguda
Eletroencefalografia
Encefalite Antirreceptor de N-Metil-D-Aspartato/diagnóstico
Encefalite Antirreceptor de N-Metil-D-Aspartato/fisiopatologia
Encefalite Antirreceptor de N-Metil-D-Aspartato/terapia
Encéfalo/fisiopatologia
Estudos Retrospectivos
Fatores de Tempo
Feminino
Humanos
Imagem por Ressonância Magnética
Imunomodulação
Masculino
Pré-Escolar
Resultado do Tratamento
Tipo de Publ: Resumo em Inglês
Artigo de Revista
Responsável: AR5.1 - Centro de Gestión del Conocimiento y las Comunicaciónes


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Id: biblio-1147920
Autor: Cuccato, Ligia Pinho; Lima, Anna Monteiro Correia; Reis, Thais Fernanda Martins dos; Queiroz, Caroline Lopes; Buiatte, Ana Beatriz Gacez; Ciuffa, Andrea Zago; Gomes, Dayane Olímpia; Alves, Vinícius Buiatte de Andrade; Rosalinski-Moraes, Fernanda.
Título: Evaluation of response to anti-leptospira bacterin vaccination in pregnant ewes and the passive transfer of antibodies to their offspring / Avaliação da resposta à vacinação com bacterina anti-leptospira em ovelhas gestantes e a transferência passiva de anticorpos a suas crias
Fonte: Biosci. j. (Online);36(5):1715-1725, 01-09-2020. tab, graf.
Idioma: en.
Resumo: Leptospirosis in sheep is often underestimated, and leads to great economic losses for the sheep farming industry. The aim of this study was to evaluate the humoral immune response in pregnant ewes, after the injection of a commercial polyvalent vaccine for leptospirosis, and to observe the transmission of anti-Leptospira antibodies through the colostrum to the offspring. For this, 24 pregnant ewes were vaccinated for leptospirosis. Blood samples were collected prior to vaccination and then 7, 14, 21, 28, 35, 42 and 49 days after vaccination. In order to evaluate passive immunity transfer, blood samples of 32 lambs were collected during the first 48 hours after birth, and another collection was performed 10 to 21 days after birth. The lambs were placed into 2 groups: Group A (n=16): singleton lambs; and group B (n=16): twins. The sera samples were submitted to the Microscopic Agglutination Test (MAT), in which 21 Leptospira serovars were tested. The results were analyzed in a descriptive form. The number of sheep reactive to MAT gradually increased until 21 days after vaccination, and decreased right after. Of all the serovars contained in the vaccine, the largest proportion of animals were seroconverted to Hardjoprajtino serovar, Serjoe serogroup. Anti-Leptospira antibodies transferred through colostrum to lambs were detected by MAT in the serum collected 24-48 hours after birth. It was observed that 65.6% (21 out of 32) of the lambs were reactive. In the subsequent collections that occurred from 10 to 21 days after birth, a decrease in the number of animals reactive to the MAT was detected. There was no significant statistical difference for the passive transfer of antibodies between single or twin lambs.

A leptospirose é uma doença frequentemente subestimada em rebanhos ovinos e leva a grandes prejuízos à ovinocultura. O objetivo deste estudo foi avaliar a resposta imune humoral em ovelhas gestantes, após imunização com uma vacina polivalente comercial contra leptospirose, bem como verificar a transmissão dos anticorpos adquiridos às crias, pelo colostro. Para isto, 24 ovelhas gestantes foram vacinadas. Amostras de sangue foram coletadas pré-imunização, bem como 7, 14, 21, 28, 35, 42 e 49 dias após. Para avaliar a transferência passiva de anticorpos, os 32 cordeiros que nasceram dessas ovelhas foram amostrados nas primeiras 48 horas após o nascimento, bem como com 10 e 21 dias de vida. Os cordeiros foram divididos em dois grupos: partos simples (Grupo A; n=16) e partos gemelares (Grupo B, n= 16). O soro sanguíneo foi submetido à prova de Soroaglutinação Microscópica (MAT), na qual 21 sorovares de Leptospira foram testados. O número de ovelhas reativas à MAT aumentou gradualmente até os 21 dias após imunização, com posterior decréscimo. De todos os sorovares presentes na vacina, a maior parte dos animais soroconverteu para o sorovar Hardjoprajtino, do sorogrupo Serjoe. Anticorpos anti-Leptospira passaram pelo colostro e puderam ser detectados no soro dos cordeiros entre 24 e 48 horas após o nascimento. Foi observado que 65,5% (21 de 32) cordeiros foram reativos. Em coletas subsequentes, realizadas 10 e 21 dias após o nascimento, houve um decréscimo no número de animais reativos à MAT. Não houve diferença significativa na transferência de anticorpos entre cordeiros de partos simples e gemelares.
Descritores: Ovinos
Imunização
Leptospirose
Anticorpos
Responsável: BR396.1 - Biblioteca Central


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Id: biblio-1125864
Autor: Gómez, Graciela; Gargiulo, María de los Ángeles; Granel, Amelia; Marcos, Ana; Gómez, Ramiro Adrián; Braillard Poccard, Andrea; Costi, Carolina; García, Mercedes; Lojo, María Nieves; Wernicke, Verónica; Barrios, Belén; Papasidero, Silvia; Benítez, Alejandro; Viola, Malena; de La Vega, María Celina; Aciar, Mariana; Crespo Espíndola, Maria Elena; Capelusnik, Dafne; Schneerberger, Emilce; Cosatti, Micaela; Pisoni, Cecilia; Ponce Delgado, Yessica; Rillo, Oscar; Pineda, Susana; Duartes Noé, Damián; Rivero, Mariano; Girard Bosch, Paula; García Salinas, Rodrigo; Kisluk, Boris; Berbotto, Guillermo; Movia, Roberto; Visentini, Susana; Herrera, Gladys; Lázaro, María Alicia.
Título: Métodos de diagnóstico en el estudio de las Miopatías Inflamatorias Autoinmunes: Datos del Registro Argentino de Miopatías Inflamatorias de la Sociedad Argentina de Reumatología / Diagnostic methods in the study of Inflammatory Myopathies. Data from the Argentine Register: Argentine Rheumatology Society
Fonte: Rev. argent. reumatolg. (En línea);31(1):3-7tab.
Idioma: es.
Resumo: Las Miopatías Inflamatorias Autoinmunes (MI) comprenden un grupo de enfermedades heterogéneas con presentación y características clínicas variables. Se distinguen subtipos clínicos como Polimiositis (PM), Dermatomiositis (DM), Miositis por cuerpos de Inclusión (MCI), Miopatía Necrotizante Inmunomediada (MNIM), Miositis de los Síndromes de Superposición, formas juveniles de MI (DMJ), Síndrome Antisintetasa (SAS) y Miopatía Asociada a Cáncer (MAC). La presencia de anticuerpos séricos y el infiltrado inflamatorio en la biopsia de músculo sugiere que se trata de una condición autoinmune. Realizar el diagnóstico de las MI suele ser un desafío y las herramientas diagnósticas no siempre están disponibles en la práctica diaria. Se obtuvo información sobre la disponibilidad de estos métodos del Registro Argentino de Miopatías Inflamatorias. El estudio de enzimas musculares, Anticuerpos Antinucleares (ANA), anticuerpo anti-Jo-1 y la tomografía computada de tórax, estuvieron disponibles para la mayoría de los pacientes mientras que la Resonancia Magnética de musculo (RM), el estudio de difusión de monóxido de carbono (DLco) y la biopsia muscular se realizaron en menos del 50% de los casos. La determinación de otros anticuerpos específicos de miositis, de importancia en el diagnóstico y pronóstico de la enfermedad se realizó, en mayor parte, a través de un subsidio de la SAR.

The Idiopathic Inflammatory Myopathies (IIM) comprise a heterogeneous group of acquired muscle diseases classified as polymyositis (PM), dermatomyositis (DM), Inclusion Body Myositis (IBM), Immuno Mediated Necrotizing Myopathies (IMNM), Overlap Myositis (OM), juvenile myositis, Antisynthethase Syndrome (ASS) and cancer related myositis (CAM). The presence of myositis specific antibodies in the serum and autoantibodies against target antigens and inflammatory infiltrates in muscle tissue suggests the autoimmune condition of the disease. The diagnosis of inflammatory myopathies is often a challenge and the disposal of diagnostic tools are not always available in daily practice. Information on the accessibility of these methods was obtained from the Argentine Register of Myopathies. The study of muscle enzymes, ANA, anti-Jo-1 antibodies and chest tomography were easy to get to most patients while muscle MRI, lung diffusion capacity for carbon monoxide (DLco) and muscle biopsy were performed in less than 50% of cases. Other myositis specific antibodies, necessary for disease diagnosis and prognosis, were mostly done through a subsidy from the Argentine Rheumatology Society.
Descritores: Doenças Musculares
-Reumatologia
Diagnóstico
Anticorpos
Responsável: AR423.1 - Biblioteca


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Id: biblio-1149914
Autor: Pineda Burgos, Blanca; Romero Rodríguez, Perla; García y González, Ethel; Flores López, Enoc; Hernández Ruiz, Pedro; Olivar Valladolid, Gustavo; Fitz Sánchez, Emiliano; Ponce, José Luis.
Título: Seroprevalencia de anticuerpos anti-Leptospira spp. en estudiantes de Medicina Veterinaria y Zootecnia de la Costa Grande de Guerrero, México / Seroprevalence of anti-Leptospira spp. antibodies among Veterinary Medicine and Zootechnics students from Costa Grande of Guerrero, Mexico
Fonte: Rev. cuba. med. trop;72(2):e466, mayo.-ago. 2020. tab.
Idioma: es.
Resumo: Introducción: La leptospirosis humana es una enfermedad zoonótica con manifestaciones clínicas inespecíficas (cefalea y mialgia), las cuales pueden confundirse con otras enfermedades febriles como: gripe, malaria, dengue, fiebre amarilla, hepatitis vírica y rickettsiosis. Objetivo: Determinar la prevalencia de anticuerpos anti-Leptospira en estudiantes de la carrera de Medicina Veterinaria y Zootecnia de la Costa Grande de Guerrero. Métodos: Se aplicó un cuestionario a los estudiantes de la Escuela Superior de Medicina Veterinaria y Zootecnia No. 3 con la finalidad de conocer algunos factores de riesgo asociados a la presencia de anticuerpos anti-Leptospira spp. La determinación de anticuerpos anti-Leptospira y la identificación de las serovariedades se realizaron con la técnica de microaglutinación. Se consideró un suero positivo cuando se observó una aglutinación en una dilución igual o mayor a 1:100. Resultados: En el estudio la seroprevalencia de anticuerpos anti-Leptospira spp. fue de 12,1 por ciento (8/66). Se detectaron anticuerpos a 8 serovariedades de Leptospira spp. El 62,5 por ciento (5/8) de los sueros presentó más de una serovariedad. Las serovariedades y frecuencia fueron icterohaemorrhagiae 25 por ciento (4/16), hardjo 18,8 por ciento (3/16), pyrogenes 18,8 por ciento (3/16), pomona 12,5 por ciento (2/16), canicola 6,2 por ciento (1/16) wolffi 6,2 por ciento (1/16) tarassovi 6,2 por ciento (1/16) y bratislava 6,2 por ciento (1/16). Los factores de riesgo estudiados no se relacionaron con la presencia de anticuerpos anti-Leptospira. Conclusiones: En el presente estudio se encontraron anticuerpos a Leptospira spp. en estudiantes de Medicina Veterinaria y Zootecnia. Por tanto, es pertinente proporcionar información a los estudiantes para prevenir el contacto con el agente causal de la leptospirosis(AU)

Introduction: Human leptospirosis is a zoonotic disease of unspecific clinical manifestations (headache and myalgia) which may be confused with those of other febrile diseases, such as influenza, malaria, dengue, yellow fever, viral hepatitis and rickettsiosis. Objective: Determine the prevalence of anti-Leptospira antibodies among Veterinary Medicine and Zootechnics students from Costa Grande de Guerrero. Methods: A questionnaire was applied to students from the Higher Education Veterinary Medicine and Zootechnics School No. 3 to obtain information about risk factors associated to the presence of anti-Leptospira spp. antibodies. Microagglutination technique was used to determine anti-Leptospira antibodies and identify serovars. A serum sample was considered positive when agglutination was observed at a dilution equal to or greater than 1:100. Results: Seroprevalence of anti-Leptospira spp. antibodies was found to be 12.1 percent (8/66). Antibodies were detected for 8 serovars of Leptospira spp. Of the serum samples analyzed, 62.5 percent (5/8) contained more than one serovar. The serovars and their frequency were the following: icterohaemorrhagiae 25 percent (4/16), hardjo 18.8 percent (3/16), pyrogenes 18.8 percent (3/16), pomona 12.5 percent (2/16), canicola 6.2 percent (1/16), wolffi 6.2 percent (1/16), tarassovi 6.2 percent (1/16) and bratislava 6.2 percent (1/16). The risk factors studied were not related to the presence of anti-Leptospira antibodies. Conclusions: Leptospira spp. antibodies were found in Veterinary Medicine and Zootechnics students. It is therefore advisable to provide students with the information required to prevent contact with the causative agent of leptospirosis(AU)
Descritores: Leptospirose/epidemiologia
Anticorpos/análise
-Faculdades de Medicina Veterinária
Medicina Veterinária
Estudos Soroepidemiológicos
Estudos Transversais
Limites: Humanos
Masculino
Feminino
Adulto Jovem
Tipo de Publ: Estudo Observacional
Responsável: CU1.1 - Biblioteca Médica Nacional


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Id: biblio-1004355
Autor: Acosta, Ignacio; Matamala, José Manuel; Jara, Paula; Pino, Francisca; Gallardo, Alejandra; Verdugo, Renato.
Título: Miopatías inflamatorias idiopáticas: una mirada actualizada al diagnóstico y el manejo / Idiopathic inflammatory myopathies: a review
Fonte: Rev. méd. Chile;147(3):342-355, mar. 2019. tab, graf.
Idioma: es.
Resumo: Idiopathic inflammatory myopathies (IIM) are a heterogeneous group of acquired immune-mediated diseases, which typically involve the striated muscle with a variable involvement of the skin and other organs. Clinically, they are characterized by proximal muscle weakness, elevation of muscle enzymes, myopathic changes on electromyography and an abnormal muscle biopsy. The different IIM have been classified according to their distinctive histopathologic features in dermatomyositis (DM), polymyositis (PM), inclusion body myositis (IBM) and immune-mediated necrotizing myopathy (IMNM). Several myositis-specific antibodies are associated with the different phenotypes, as well as with different risk of neoplastic disease and systemic complications. The basis for the treatment of DM, PM, and IMNM is immunosuppression. For IBM there are only symptomatic treatments. Steroids, associated or not with other immunosuppressant drugs, are the first line of treatment. Biologic drugs will allow future individualized therapies. The 10-year survival of DM, PM and IMNM is 62 to 90%. The leading causes of death are neoplastic, lung and cardiac complications. IBM does not impair survival, although it affects the quality of life.
Descritores: Miosite/patologia
-Polimiosite/patologia
Músculo Esquelético/patologia
Dermatomiosite/patologia
Eletromiografia
Imunossupressores/classificação
Imunossupressores/uso terapêutico
Anticorpos
Miosite/tratamento farmacológico
Limites: Humanos
Tipo de Publ: Revisão
Responsável: CL1.1 - Biblioteca Central


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Texto completo SciELO Cuba
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Id: biblio-1149898
Autor: Marcell Rodríguez, Lelyem; Morera Barrios, Luz M; Ustariz García, Catalino R; Ramírez Hernández, Mahelys; Nafeh Abi-rezk, Manuel; Chang Monteagudo, Arturo.
Título: Caracterización de los anticuerpos anti-HLA en posibles receptores cubanos de trasplante cardiaco / Characterization of anti-HLA antibodies in Cuban possible receptors of heart transplant
Fonte: Rev. cuba. hematol. inmunol. hemoter;36(2):e1115, abr.-jun. 2020. graf.
Idioma: es.
Resumo: Introducción: En la supervivencia del corazón trasplantado son de importancia el empleo de los anticuerpos contra el sistema principal de histocompatibilidad (anticuerpos anti-HLA). Hace seis años se introdujo en Cuba el porcentaje de anticuerpos anti-HLA frente a panel (PRA) por método de ensayo de inmunoabsorción ligado a enzima (ELISA) como parte de las pruebas de compatibilidad pretrasplante de los receptores de trasplante cardiaco. Objetivo: Caracterizar los anticuerpos anti-HLA en pacientes receptores cubanos de trasplante cardiaco. Métodos: Entre septiembre de 2013 y abril de 2017 se les realizó el PRA por ELISA a 38 muestras de pacientes recibidas en el laboratorio de histocompatibilidad del Instituto de Hematología e Inmunología. Se utilizó la comparación de proporciones para el análisis estadístico. Resultados: El 47,4 por ciento de los pacientes estudiados presentó anticuerpos anti-HLA, fueron los más frecuentes los de clase I. La proporción de pacientes con PRA del 0 por ciento fue mayor en PRA clase II que en I (p: 0,0027). Mientras que fue mayor la proporción de pacientes con PRA clase I entre el 20 y el 75 por ciento (p: 0,0046). El 77,8 por ciento de los pacientes tuvo un PRA clase I mayor al 10 por ciento y en el PRA clase II alcanzó el 80 por ciento. Conclusiones: El porcentaje de anticuerpos anti-HLA frente a panel por método de ensayo de inmunoabsorción ligado a enzima permitió una mejor caracterización de los anticuerpos anti-HLA, lo que contribuyó a mejorar la compatibilidad en este tipo de paciente(AU)

Introduction: In survival after heart transplantation, the use of antibodies against the main histocompatibility system (anti-HLA antibodies) is important. Six years ago, the percentage of anti-HLA antibodies against panel (PRA) by enzyme-linked immunosorbent assay (ELISA) method was introduced in Cuba as part of the pre-transplant compatibility tests of heart transplant recipients. Objective: To characterize anti-HLA antibodies in Cuban heart transplant recipients. Methods: Between September 2013 and April 2017, PRA by ELISA was performed on 38 patient samples received in the histocompatibility laboratory of the Institute of Hematology and Immunology. Comparison of proportions was used for statistical analysis. Results: 47.4 percent of the study patients presented anti-HLA antibodies; those in class were the most frequent. The proportion of patients with PRA of 0 percent was higher in PRA class II than in class I (p=0.0027). The proportion of patients with PRA class I was greater, accounting for 20-75 percent (p=0.0046). 77.8 percent of the patients had a class I PRA greater than 10 percent, while in class II PRA it reached 80 percent. Conclusions: The percentage of anti-HLA antibodies versus a panel of enzyme linked immunosorbent assay method allowed better characterization of anti-HLA antibodies, which contributed to improving compatibility in this type of patient(AU)
Descritores: Transplante de Coração/métodos
Transplantados
Anticorpos/uso terapêutico
-Ensaio de Imunoadsorção Enzimática/métodos
Análise de Sobrevida
Cuba
Limites: Humanos
Responsável: CU1.1 - Biblioteca Médica Nacional


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Id: biblio-1148106
Autor: Carlotto, Fernanda Marcante; Puhl, Bruna Schmitt; Beninca, Antônio Albuquerque; Machado, Bruna Accorsi; Araujo, Cristiane da Silva Rodrigues.
Título: Prevalence of red blood cell alloimmunization in multiply transfused patients
Fonte: Clin. biomed. res;40(2):91-95, 2020.
Idioma: en.
Resumo: Introduction: To analyze the prevalence of alloantibodies in multiply transfused patients. Methods: This study was a retrospective, exploratory and descriptive study with a quantitative approach. The study sample comprised 185 patients transfused at a referral service in the city of Passo Fundo, Rio Grande do Sul, from January 2016 to February 2018. Results: Overall, the antibodies identified were as follows: anti-E in 47 patients (18%), anti-D and anti-K in 28 patients each (11%), anti-C in 21 patients (8.1%), and inconclusive antibody results in 23 patients (8.9%). Females were a majority (55.7%), mean age was 48.8 years and mean quantity of blood transfused was 7.2 bags. Cardiovascular disorders were the most common comorbidities, in 39 patients (21.2%), followed by oncological disorders, in 38 patients (18.4%). Conclusion: Alloimmunization is an important and frequent clinical condition that increases the risk of hemolytic reactions and is associated with significant patient morbidity and mortality. (AU)
Descritores: Transplantados
Anticorpos/análise
-Comorbidade
Imunização/efeitos adversos
Transfusão de Eritrócitos/estatística & dados numéricos
Limites: Humanos
Masculino
Feminino
Responsável: BR18.1 - Biblioteca FAMED/HCPA


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Id: biblio-1093268
Autor: Rolon Toledo, Mary Estella; Hoyos González, Kenia; Correa Ortega, Andrea; Villegas Gracia, Rossana.
Título: Caracterización de donantes de sangre con rastreo de anticuerpos irregulares positivo en Montería, Colombia 2012-2015 / Blood donors characterization with positive irregular antibodies in Montería, Colombia 2012- 2015
Fonte: Rev. cuba. hematol. inmunol. hemoter;35(2):e929, abr.-jun. 2019. tab.
Idioma: es.
Resumo: Introducción: Los anticuerpos irregulares corresponden a aquellos distintos a los anticuerpos naturales anti-A o anti-B, los cuales pueden aparecer en respuesta a la exposición a un antígeno eritrocitario extraño (transfusión o trasplante) o por incompatibilidad materno-fetal. Objetivo: Caracterizar a los donantes con rastreo de anticuerpos irregulares positivo de un banco de sangre de Montería, Colombia, durante el periodo 2012-2015. Métodos: Estudio transversal y retrospectivo, con fuente de información secundaria, basada en los resultados del rastreo de anticuerpos en los donantes de un banco de sangre de Montería, Colombia, entre los años 2012 y 2015. La población estuvo conformada por todos los donantes voluntarios registrados en el tiempo del estudio (35 248 donantes), a quienes se les realizó rastreo de anticuerpos. Como muestra, se seleccionaron todos los casos que tuvieron resultados positivos (71 donantes). Los datos fueron organizados en tablas y analizados en el software SPSS 21.0, Microsoft Excel y en Epidat versión 3.1. Resultados: El 0,2 por ciento de la población presentó un rastreo de anticuerpos positivo con un intervalo de confianza entre 0,15 y 0,25 por ciento. Los anticuerpos irregulares fueron más frecuentes en los hombres y en donantes O Rh positivo. Se encontraron Ac irregulares con 13 especificidades diferentes, con predomino de anti-M, anti-Lea, anti-D y anti-E y porcentajes respectivos de 27,78 por ciento, 20,83 por ciento, 9,72 por ciento y 8,33 por ciento. El 50 por ciento de los donantes tenía 30,5 años o menos, el 49,3 por ciento había donado previamente y el 9,9 por ciento recibió al menos una transfusión en algún momento de su vida. Conclusión: La frecuencia de donantes con rastreo de anticuerpos irregulares positivo fue baja, el sexo masculino presentó mayor porcentaje, se detectó principalmente en el grupo sanguíneo O y dentro de los anticuerpos irregulares, anti-M presentó una mayor frecuencia(AU)

Introduction: Irregular antibodies correspond to those other than natural anti-A or anti-B antibodies, which may appear in response to exposure to a foreign erythrocyte antigen (transfusion or transplantation) or due to maternal-fetal incompatibility. Objective: To characterize the donors with positive irregular antibody screening of a blood bank in Monteria, Colombia during the period 2012-2015. Methods: Cross-sectional and retrospective study, with secondary information source, based on the results of the antibody screening in donors of a blood bank in Monteria, Colombia from 2012 to 2015. The population consisted of all voluntary donors registered in the study time (35 248 donors), who were screened for antibodies. As a sample, all cases that had positive results (71 donors) were selected. The data was organized in tables and analyzed in the software SPSS 21.0, Microsoft Excel and in Epidat version 3.1. Results: 0.2 percent of the population presented a positive antibody screen with a confidence interval between 0.15 and 0.25 percent Irregular antibodies were more frequent in men and in O Rh positive donors. Thirteen types of irregular antibodies were found, with predominance of anti-M, anti-Lea, anti-D and anti-E and respective percentages of 27.78 percent, 20.83 percent, 9.72 percent and 8.33 percent. 50 percent of the donors were 30.5 years old or less, 49.3 percent had previously donated and 9.9 percent received at least one transfusion at some point in their lives. Conclusion: The frequency of donors with irregular positive antibody screening was low, the male sex had a higher percentage, it was detected mainly in blood group O and within the irregular antibodies, anti-M showed a higher frequency(AU)
Descritores: Doadores de Sangue/estatística & dados numéricos
Isoanticorpos/uso terapêutico
-Estudos Transversais
Estudos Retrospectivos
Colômbia
Anticorpos
Limites: Humanos
Masculino
Feminino
Responsável: CU1.1 - Biblioteca Médica Nacional


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Id: biblio-1143928
Autor: Oliva Menacho, José Enrique; Arroyo Acevedo, Jorge Luis; Oliva Candela, Jose Arturo; Salas Ponce, Percy Genaro; Garcia Hjarles, Marco Antonio.
Título: Relación entre los anticuerpos contra antígenos extraíbles del núcleo y las enfermedades del tejido conectivo identificados por Immunoblots en un hospital y universidad de Lima / Relationship between antibodies against extractable nucleus antigens and connective tissue diseases identified by Immunoblot in a hospital in Lima, Peru
Fonte: Rev. argent. reumatolg. (En línea);31(2):25-30, jun. 2020. tab.
Idioma: es.
Resumo: Objetivos: Determinar la relación de los anticuerpos con los antígenos del núcleo extraíble y las enfermedades del tejido conectivo identificadas por Immunoblot en un hospital de Lima, Perú. Material y métodos: Estudio de tipo observacional, ciencias básicas, analíticas y transversales, realizado en el Servicio de Inmunología del Hospital Nacional Arzobispo Loayza entre enero de 2018 y junio de 2018. Analizamos 291 historias clínicas de pacientes con enfermedad del tejido conectivo y para la detección de anticuerpos contra los antígenos extraíbles del núcleo se empleó el método de Immunoblots. Resultados: La frecuencia de los anticuerpos contra antígenos nucleares extraíbles en pacientes con enfermedad del tejido conectivo identificados por Immunoblot fue 789 (100%). Se demostró que existe una relación significativa p <0.05 de Anti-histonas (X2 = 64.19; p = 0,000), anti-nucleosomas (X2 = 71,16; p = 0,000), anti-dsDNA (X2 = 71,44; p = 0,000), anti-SM (X2 = 10,08; p = 0,003) y lupus eritematoso sistémico con prueba de Chi-cuadrado de Pearson. Se demostró que existe una relación significativa p <0.05 del Anti-SSA (X2 = 61,33; p = 0.001), anti-SSB (x2 = 51,00; p = 0.001), anti-Ro 52 (X2 = 62,60; p = 0,000) y síndrome de Sjogren con prueba de Chi-cuadrado de Pearson. Se demostró que existe una relación significativa p <0.05 de Anti-CENP B (p = 0.001) y calcinosis, fenómeno de Raynaud, dismotilidad esofágica, esclerodactilia y Telangiectasia (CREST) con Fisher. Conclusiones: Existe relación de anticuerpos con antígenos de núcleo extraíbles y lupus eritematoso sistémico, síndrome de Sjogren, enfermedad mixta del tejido conectivo, enfermedad del CREST, esclerodermia y polimiositis.

Objectives: To determine the relationship of antibodies to extractable nucleus antigens and connective tissue diseases identified by Immunoblot in a hospital in Lima, Peru. Material and methods: Study of the observational type, basic sciences, analytical and transversal, carried out in the Immunology service of the national Hospital Archbishop Loayza between January 2018 and June 2018. We analyzed 291 clinical histories of patients with connective tissue disease and for the detection of antibodies to the extractable antigens of the nucleus the method of Immunoblot was employed. Results: The frequency of the antibodies against extractable nuclear antigens in patients with connective tissue disease identified by Immunoblot was 789 (100%). It was demonstrated that there is significant relationship p < 0.05 of Anti-histones (X2 = 64.19; p = 0,000), anti-nucleosomas (X2 = 71,16; p = 0,000), anti-dsDNA (X2 = 71,44; p = 0,000), anti-SM (X2 = 10,08; p = 0,003) and Lupus Systemic erythematosus with Pearson Chi-square test. It was demonstrated that there is significant relationship p < 0.05 of the Anti-SSA (X2 = 61,33; p = 0.001), anti-SSB (X2 = 51,00; p = 0.001), anti-Ro 52 (X2 = 62,60; p = 0,000) and Sjogren's syndrome with Pearson Chi-square test. It was demonstrated that there is significant relationship p < 0.05 of Anti-CENP B (p = 0.001) and calcinosis, Raynaud's phenomenon, esophageal dysmotility, sclerodactyly and Telangiectasia (CREST) with exact Fisher statistician. Conclusions: There is a relationship of antibodies to extractable nucleus antigens and systemic lupus erythematosus, Sjogren's syndrome, mixed connective tissue disease, calcinosis, Raynaud's phenomenon, esophageal dysmotility, sclerodactyly and Telangiectasias (CREST), Scleroderma and Polymyositis.
Descritores: Anticorpos
-Tecido Conjuntivo
Doenças do Tecido Conjuntivo
Doença Mista do Tecido Conjuntivo
Antígenos
Limites: Humanos
Responsável: AR423.1 - Biblioteca


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Id: biblio-1129455
Autor: Benedetti, Volmir Pitt; Hellmann, Mardjori Andrade; Cesaro, Maiara Cristina De; Duarte, Ana Frida; Cauz, Mariangela; Moresco, Raquel Gabriela.
Título: Frequência de anticorpos irregulares identificados em pacientes atendidos em um hemonúcleo no sudoeste do Paraná no ano de 2017 / Frequency of irregular antibodies identified in patients treated at the hemotherapy service in southwest of Paraná in 2017
Fonte: Arq. ciências saúde UNIPAR;24(3):133-138, set-dez. 2020.
Idioma: pt.
Resumo: Quando um indivíduo é exposto a antígenos eritrocitários não próprios, ocorre uma resposta imunológica, que leva à produção de anticorpos irregulares voltados contra esses antígenos. Esse processo é conhecido como aloimunização eritrocitária e acontece em decorrência de transfusões de sangue ou gestações incompatíveis. Na medicina transfusional a pesquisa de anticorpos irregulares é fundamental, pois a falha na detecção de um aloanticorpo pode provocar reações transfusionais, aloimunizações, anemias hemolíticas autoimunes e doença hemolítica perinatal. Este estudo tem por objetivo analisar a frequência de anticorpos irregulares de pacientes atendidos no Hemocentro Regional de Francisco Beltrão, Paraná, no ano de 2017. Os dados foram coletados a partir da revisão de registros em arquivos do Laboratório de Imunohematologia do Hemonúcleo. Foram avaliados dados de 49 protocolos de pacientes que apresentaram dificuldades transfusionais no ano de 2017. Dentre os pesquisados, 37 pacientes (75,5%) apresentaram anticorpos irregulares. Dentre os anticorpos anti-eritrocitários observados neste estudo, evidenciou-se a presença de doze pacientes com anti-D (27,2%), seis pacientes com anti-K (13,6%), quatro pacientes com anti-C (9,0%) e em seis pacientes (13,6%) foi observada a presença de autoanticorpos. Este estudo indica que, nos pacientes transfundidos, os anticorpos mais frequentes foram os aloanticorpos Anti-D do Sistema Rh, provavelmente devido ao seu alto grau de imunogenicidade. A prevalência desses anticorpos é semelhante a vários estudos encontrados na literatura.

When an individual is exposed to not-self red blood cell antigens, an immune response occurs, which leads to the production of irregular antibodies directed against these antigens. This process is known as erythrocyte alloimmunization and occurs as a result of blood transfusions or incompatible pregnancies. In transfusion medicine, the search for irregular antibodies is essential, since failure to detect an alloantibody can cause transfusion reactions, alloimmunizations, autoimmune hemolytic anemias, and perinatal hemolytic disease. This study aims at analyzing the frequency of irregular antibodies of patients seen at the Regional Blood Center of Francisco Beltrão, Paraná, in 2017. The data were collected from the review of records in files of the Immunohematology Laboratory of Hemonúcleo. Data from 49 protocols of patients who had transfusion difficulties in 2017 were evaluated. Among those surveyed, 37 patients (75.5%) had irregular antibodies. Among the anti-erythrocyte antibodies observed in this study, the presence of twelve patients with anti-D (27.2%), six patients with anti-K (13.6%), four patients with anti-C (9.0 %), and in six patients (13.6%) with the presence of autoantibodies were observed. This study indicates that, in transfused patients, the most frequent antibodies were the Rh System Anti-D alloantibodies, probably due to their high degree of immunogenicity. The prevalence of these antibodies is similar to several studies found in the literature.
Descritores: Autoanticorpos/imunologia
Isoanticorpos/imunologia
-Autoanticorpos/isolamento & purificação
Transfusão de Sangue
Estudos Retrospectivos
Distribuição por Sexo
Distribuição por Idade
Eritrócitos/imunologia
Reação Transfusional/imunologia
Isoanticorpos/isolamento & purificação
Anticorpos/isolamento & purificação
Anticorpos/imunologia
Limites: Humanos
Masculino
Feminino
Criança
Adolescente
Adulto
Pessoa de Meia-Idade
Idoso
Idoso de 80 Anos ou mais
Adulto Jovem
Responsável: BR513.1 - Biblioteca Central



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