48 research outputs found

    Acute Coronary Syndrome: Acute Myocardial Infarction of the Lower Face plus Catheterization. Case Report

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    El síndrome coronario agudo (SCA) es causado por un desequilibrio entre el consumo de oxígeno del miocardio y el flujo sanguíneo, que puede ser causado por una disminución grave del suministro de sangre o un aumento de la demanda que no puede compensarse con un aumento del flujo sanguíneo. La manifestación más grave del SCA es una disminución dramática del flujo sanguíneo causada por la formación de un coágulo sanguíneo oclusivo sobre una placa aterosclerótica que se rompe en una arteria coronaria epicárdica. El síndrome coronario agudo sin elevación del ST, en muchos pacientes los cambios en el ECG son mínimos o reflejan un estado de reperfusión (inversión de la porción terminal de las ondas T o cambios T inespecíficos sin desviación significativa del segmento ST). Sin embargo, durante la isquemia activa, se pueden detectar cambios en el ECG, incluida la desviación del segmento ST y cambios en la morfología de las ondas T y U. Se reporta paciente femenina de 42 años con antecedentes de importancia acude por reportar dolor epigástrico tipo quemante urente de intensidad 6/10 según la escala de EVA, que se irradia a mandíbula, brazo izquierdo.Acute coronary syndrome (ACS) is caused by an imbalance between myocardial oxygen consumption and blood flow, which can be caused by a severe decrease in blood supply or an increase in demand that cannot be compensated by an increase in blood flow. Blood flow. The most severe manifestation of ACS is a dramatic decrease in blood flow caused by the formation of an occlusive blood clot over an atherosclerotic plaque that ruptures into an epicardial coronary artery. In non-ST elevation acute coronary syndrome, in many patients the ECG changes are minimal or reflect a state of reperfusion (inversion of the terminal portion of the T waves or nonspecific T changes without significant ST segment deviation). However, during active ischemia, changes can be detected on the ECG, including ST segment deviation and changes in T and U wave morphology. A 42-year-old female patient with a significant history comes to report burning burning epigastric pain of intensity 6/10 according to the VAS scale, which radiates to the jaw and left arm

    Deciphering imprints of impaired memory B-cell maturation in germinal centers of three patients with common variable immunodeficiency

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    Common variable immunodeficiency (CVID), characterized by recurrent infections, low serum class-switched immunoglobulin isotypes, and poor antigen-specific antibody responses, comprises a heterogeneous patient population in terms of clinical presentation and underlying etiology. The diagnosis is regularly associated with a severe decrease of germinal center (GC)-derived B-cell populations in peripheral blood. However, data from B-cell differentiation within GC is limited. We present a multiplex approach combining histology, flow cytometry, and B-cell receptor repertoire analysis of sorted GC B-cell populations allowing the modeling of distinct disturbances in GCs of three CVID patients. Our results reflect pathophysiological heterogeneity underlying the reduced circulating pool of post-GC memory B cells and plasmablasts in the three patients. In patient 1, quantitative and qualitative B-cell development in GCs is relatively normal. In patient 2, irregularly shaped GCs are associated with reduced somatic hypermutation (SHM), antigen selection, and class-switching, while in patient 3, high SHM, impaired antigen selection, and class-switching with large single clones imply increased re-cycling of cells within the irregularly shaped GCs. In the lymph nodes of patients 2 and 3, only limited numbers of memory B cells and plasma cells are formed. While reduced numbers of circulating post GC B cells are a general phenomenon in CVID, the integrated approach exemplified distinct defects during GC maturation ranging from near normal morphology and function to severe disturbances with different facets of impaired maturation of memory B cells and/or plasma cells. Integrated dissection of disturbed GC B-cell maturation by histology, flow cytometry, and BCR repertoire analysis contributes to unraveling defects in the essential steps during memory formation

    Smart regions. The human factor.

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    Los autores del presente libro aciertan cuando dicen que “gestionar adecuadamente el personal humano es un arte y una ciencia que tiene un impacto profundo en el rendimiento y desempeño empresarial”. En siete capítulos, este libro explora la incidencia de factores tecnológicos, sociales y humanos en la eficiencia de las organizaciones. El especial énfasis en este último aspecto se evidencia en la inclusión de categorías como inteligencia emocional, trabajo en equipos multidisciplinarios y resiliencia; las cuales van de la mano con otras como la innovación y la gestión de conocimiento [Carlos Enrique Ramírez]. Es evidente que los autores a través de un estudio riguroso sobre materiales académicos de referentes reconocidos a nivel mundial desarrollaron investigaciones detalladas en diferentes organizaciones con personal perteneciente a diversas áreas laborales, evaluaron numerosas hipótesis mediante ecuaciones estructurales, las mismas que condujeron a resultados significativos que dan claridad del impacto de diversos factores, sobre la efectividad operacional de las organizaciones con énfasis en el Factor Humano [BG. Alfonso Lozano Ariza]

    Table_1_Deciphering imprints of impaired memory B-cell maturation in germinal centers of three patients with common variable immunodeficiency.docx

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    Common variable immunodeficiency (CVID), characterized by recurrent infections, low serum class-switched immunoglobulin isotypes, and poor antigen-specific antibody responses, comprises a heterogeneous patient population in terms of clinical presentation and underlying etiology. The diagnosis is regularly associated with a severe decrease of germinal center (GC)-derived B-cell populations in peripheral blood. However, data from B-cell differentiation within GC is limited. We present a multiplex approach combining histology, flow cytometry, and B-cell receptor repertoire analysis of sorted GC B-cell populations allowing the modeling of distinct disturbances in GCs of three CVID patients. Our results reflect pathophysiological heterogeneity underlying the reduced circulating pool of post-GC memory B cells and plasmablasts in the three patients. In patient 1, quantitative and qualitative B-cell development in GCs is relatively normal. In patient 2, irregularly shaped GCs are associated with reduced somatic hypermutation (SHM), antigen selection, and class-switching, while in patient 3, high SHM, impaired antigen selection, and class-switching with large single clones imply increased re-cycling of cells within the irregularly shaped GCs. In the lymph nodes of patients 2 and 3, only limited numbers of memory B cells and plasma cells are formed. While reduced numbers of circulating post GC B cells are a general phenomenon in CVID, the integrated approach exemplified distinct defects during GC maturation ranging from near normal morphology and function to severe disturbances with different facets of impaired maturation of memory B cells and/or plasma cells. Integrated dissection of disturbed GC B-cell maturation by histology, flow cytometry, and BCR repertoire analysis contributes to unraveling defects in the essential steps during memory formation.</p

    Image_3_Deciphering imprints of impaired memory B-cell maturation in germinal centers of three patients with common variable immunodeficiency.tiff

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    Common variable immunodeficiency (CVID), characterized by recurrent infections, low serum class-switched immunoglobulin isotypes, and poor antigen-specific antibody responses, comprises a heterogeneous patient population in terms of clinical presentation and underlying etiology. The diagnosis is regularly associated with a severe decrease of germinal center (GC)-derived B-cell populations in peripheral blood. However, data from B-cell differentiation within GC is limited. We present a multiplex approach combining histology, flow cytometry, and B-cell receptor repertoire analysis of sorted GC B-cell populations allowing the modeling of distinct disturbances in GCs of three CVID patients. Our results reflect pathophysiological heterogeneity underlying the reduced circulating pool of post-GC memory B cells and plasmablasts in the three patients. In patient 1, quantitative and qualitative B-cell development in GCs is relatively normal. In patient 2, irregularly shaped GCs are associated with reduced somatic hypermutation (SHM), antigen selection, and class-switching, while in patient 3, high SHM, impaired antigen selection, and class-switching with large single clones imply increased re-cycling of cells within the irregularly shaped GCs. In the lymph nodes of patients 2 and 3, only limited numbers of memory B cells and plasma cells are formed. While reduced numbers of circulating post GC B cells are a general phenomenon in CVID, the integrated approach exemplified distinct defects during GC maturation ranging from near normal morphology and function to severe disturbances with different facets of impaired maturation of memory B cells and/or plasma cells. Integrated dissection of disturbed GC B-cell maturation by histology, flow cytometry, and BCR repertoire analysis contributes to unraveling defects in the essential steps during memory formation.</p

    Image_2_Deciphering imprints of impaired memory B-cell maturation in germinal centers of three patients with common variable immunodeficiency.tiff

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    Common variable immunodeficiency (CVID), characterized by recurrent infections, low serum class-switched immunoglobulin isotypes, and poor antigen-specific antibody responses, comprises a heterogeneous patient population in terms of clinical presentation and underlying etiology. The diagnosis is regularly associated with a severe decrease of germinal center (GC)-derived B-cell populations in peripheral blood. However, data from B-cell differentiation within GC is limited. We present a multiplex approach combining histology, flow cytometry, and B-cell receptor repertoire analysis of sorted GC B-cell populations allowing the modeling of distinct disturbances in GCs of three CVID patients. Our results reflect pathophysiological heterogeneity underlying the reduced circulating pool of post-GC memory B cells and plasmablasts in the three patients. In patient 1, quantitative and qualitative B-cell development in GCs is relatively normal. In patient 2, irregularly shaped GCs are associated with reduced somatic hypermutation (SHM), antigen selection, and class-switching, while in patient 3, high SHM, impaired antigen selection, and class-switching with large single clones imply increased re-cycling of cells within the irregularly shaped GCs. In the lymph nodes of patients 2 and 3, only limited numbers of memory B cells and plasma cells are formed. While reduced numbers of circulating post GC B cells are a general phenomenon in CVID, the integrated approach exemplified distinct defects during GC maturation ranging from near normal morphology and function to severe disturbances with different facets of impaired maturation of memory B cells and/or plasma cells. Integrated dissection of disturbed GC B-cell maturation by histology, flow cytometry, and BCR repertoire analysis contributes to unraveling defects in the essential steps during memory formation.</p

    Image_1_Deciphering imprints of impaired memory B-cell maturation in germinal centers of three patients with common variable immunodeficiency.tiff

    No full text
    Common variable immunodeficiency (CVID), characterized by recurrent infections, low serum class-switched immunoglobulin isotypes, and poor antigen-specific antibody responses, comprises a heterogeneous patient population in terms of clinical presentation and underlying etiology. The diagnosis is regularly associated with a severe decrease of germinal center (GC)-derived B-cell populations in peripheral blood. However, data from B-cell differentiation within GC is limited. We present a multiplex approach combining histology, flow cytometry, and B-cell receptor repertoire analysis of sorted GC B-cell populations allowing the modeling of distinct disturbances in GCs of three CVID patients. Our results reflect pathophysiological heterogeneity underlying the reduced circulating pool of post-GC memory B cells and plasmablasts in the three patients. In patient 1, quantitative and qualitative B-cell development in GCs is relatively normal. In patient 2, irregularly shaped GCs are associated with reduced somatic hypermutation (SHM), antigen selection, and class-switching, while in patient 3, high SHM, impaired antigen selection, and class-switching with large single clones imply increased re-cycling of cells within the irregularly shaped GCs. In the lymph nodes of patients 2 and 3, only limited numbers of memory B cells and plasma cells are formed. While reduced numbers of circulating post GC B cells are a general phenomenon in CVID, the integrated approach exemplified distinct defects during GC maturation ranging from near normal morphology and function to severe disturbances with different facets of impaired maturation of memory B cells and/or plasma cells. Integrated dissection of disturbed GC B-cell maturation by histology, flow cytometry, and BCR repertoire analysis contributes to unraveling defects in the essential steps during memory formation.</p

    DataSheet_1_Deciphering imprints of impaired memory B-cell maturation in germinal centers of three patients with common variable immunodeficiency.docx

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    Common variable immunodeficiency (CVID), characterized by recurrent infections, low serum class-switched immunoglobulin isotypes, and poor antigen-specific antibody responses, comprises a heterogeneous patient population in terms of clinical presentation and underlying etiology. The diagnosis is regularly associated with a severe decrease of germinal center (GC)-derived B-cell populations in peripheral blood. However, data from B-cell differentiation within GC is limited. We present a multiplex approach combining histology, flow cytometry, and B-cell receptor repertoire analysis of sorted GC B-cell populations allowing the modeling of distinct disturbances in GCs of three CVID patients. Our results reflect pathophysiological heterogeneity underlying the reduced circulating pool of post-GC memory B cells and plasmablasts in the three patients. In patient 1, quantitative and qualitative B-cell development in GCs is relatively normal. In patient 2, irregularly shaped GCs are associated with reduced somatic hypermutation (SHM), antigen selection, and class-switching, while in patient 3, high SHM, impaired antigen selection, and class-switching with large single clones imply increased re-cycling of cells within the irregularly shaped GCs. In the lymph nodes of patients 2 and 3, only limited numbers of memory B cells and plasma cells are formed. While reduced numbers of circulating post GC B cells are a general phenomenon in CVID, the integrated approach exemplified distinct defects during GC maturation ranging from near normal morphology and function to severe disturbances with different facets of impaired maturation of memory B cells and/or plasma cells. Integrated dissection of disturbed GC B-cell maturation by histology, flow cytometry, and BCR repertoire analysis contributes to unraveling defects in the essential steps during memory formation.</p
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