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Search Results: 1 - 10 of 7054 matches for " Guillermo Noa Pedroso "
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Infección por Helicobacter pylori en pacientes con mucosa sana y con gastritis erosiva
Martínez Echavarría,María Teresa; Noa Pedroso,Guillermo;
Revista Cubana de Medicina , 2009,
Abstract: helicobacter pylori (hp) is a bacterium causing colonization and infection of gastric epithelium of man. infection allows appearance of a gastritis that may to evolve to a peptic ulcer, a gastric adenocarcinoma, or a type malt lymphoma. in other cases, infection has a silent presentation. authors studied presence of hp in patients with gastritis and in others with a healthy mucosa, seen in endoscopy consultation of "hermanos ameijeiras" surgical clinical hospital by others disorders in high digestive tract pathways. fifty patients were investigated, 30 of them had an erosive gastritis, and 20 had a healthy mucosa histology confirmed. hc was detected by amplification of a fragment of ure a gen, by means of polymerase chain reaction (pcr), in 90% of cases with erosive gastritis, and in 75 % of subjects with a healthy mucosa. the reason of odds ratio (or) was of 3 with a confidence interval (ic) of 0.52-18.9. we conclude that hp infection is so high in patients with gastritis than in those with a healthy gastric mucosa.
Infección por Helicobacter pylori en pacientes con mucosa sana y con gastritis erosiva Helicobacter pylori infection present in patients with a healthy mucosa and erosive gastritis
María Teresa Martínez Echavarría,Guillermo Noa Pedroso
Revista Cubana de Medicina , 2009,
Abstract: Helicobacter pylori es una bacteria que coloniza e infecta la mucosa del epitelio gástrico del hombre. La infección condiciona la aparición de una gastritis que puede evolucionar hacia úlcera péptica, adenocarcinoma gástrico o linfoma tipo MALT. En otros casos, la infección se presenta de forma silente. Se estudió le presencia de HP en pacientes con gastritis y en otros con mucosa sana que acudieron a la Consulta de Endoscopia, del Hospital Clinicoquirúrgico "Hermanos Ameijeiras", por desórdenes en las vías del tracto digestivo superior. Se investigaron 50 pacientes, 30 tenían gastritis erosiva y 20, la mucosa sana, confirmado histológicamente. Se detectó Helicobacter pylori por amplificación de un fragmento del gen ure A mediante la reacción en cadena de la polimerasa, en el 90 % de los casos con gastritis erosiva y en el 75 % de los sujetos con mucosa sana. La razón de productos cruzados (OR) fue 3 con un intervalo de confianza de 0,52-18,9. Se concluyó que la infección por HP es tan elevada en los pacientes con gastritis como en aquellos con mucosa gástrica sana. Helicobacter pylori (HP) is a bacterium causing colonization and infection of gastric epithelium of man. Infection allows appearance of a gastritis that may to evolve to a peptic ulcer, a gastric adenocarcinoma, or a type MALT lymphoma. In other cases, infection has a silent presentation. Authors studied presence of HP in patients with gastritis and in others with a healthy mucosa, seen in endoscopy consultation of "Hermanos Ameijeiras" Surgical Clinical Hospital by others disorders in high digestive tract pathways. Fifty patients were investigated, 30 of them had an erosive gastritis, and 20 had a healthy mucosa histology confirmed. HC was detected by amplification of a fragment of Ure A gen, by means of polymerase chain reaction (PCR), in 90% of cases with erosive gastritis, and in 75 % of subjects with a healthy mucosa. The reason of odds ratio (OR) was of 3 with a confidence interval (IC) of 0.52-18.9. We conclude that HP infection is so high in patients with gastritis than in those with a healthy gastric mucosa.
Asociación del virus herpes humano 8 y la hiperplasia linfoide nodular difusa del intestino delgado en la inmunodeficiencia variable común Association between the human herpesvirus 8 and the diffuse nodular lymphoid hyperplasia of the small intestine in common variable immunodeficiency
Elena Kokuina,Carlos Domínguez álvarez,Guillermo Noa Pedroso,Pedro Ariel Martínez Rodríguez
Revista Cubana de Hematolog?-a, Inmunolog?-a y Hemoterapia , 2009,
Abstract: La inmunodeficiencia variable común (IDVC) es la inmunodeficiencia primaria más frecuente en el terreno clínico y sus formas de presentación son muy variables. Se describe una paciente con IDVC de adulto con síndrome diarreico crónico, pérdida de peso y linfoadenopatías difusas. Sus características inmunológicas más notables fueron una profunda hipogammaglobulinemia de las 3 clases mayores de inmunoglobulinas y la disminución numérica de las células B (CD19+) y células NK (CD3-CD56+) en sangre periférica. La biopsia del intestino delgado obtenida por panendoscopia asistida por video, reveló hiperplasia linfoide multinodular con atrofia parcial de las vellosidades. La inmunohistoquímica mostró que los nódulos consistían en centros germinales aumentados de tama o con una distribución de células B (CD20+) y células T (CD3+), similar a la del folículo normal. No se encontró expresión diferencial de cadenas ligeras κ y λ. El método de la reacción en cadena de la polimerasa en tiempo real (QRT-PCR) detectó un número apreciable de copias del genoma del virus del herpes humano tipo 8 (VHH-8) (133 copias/μL de ADN) en el ADN del nódulo intestinal biopsiado. La infección con el VHH-8 puede ser un factor importante en la patogenia de los trastornos linfoproliferativos en pacientes con IDVC. The common variable immunodeficiency (CVID) is the more frequent primary immunodeficiency in clinical field and its presentation forms are very variable. We describe the case of a women presenting with adult CVID with chronic diarrhea syndrome, weight loss and diffuse lymphadenopathies, where the more marked immunologic features were a deep hypogammaglobulinemia of the three major kinds of immunoglobulins and numerical decrease of B cells (CD19+) and NK cells (CD3-CD56+) in peripheral blood. Biopsy of small intestine obtained by video-assisted panendoscope, showed the presence of a multinodular lymphoid hyperplasia with partial atrophy of hairinesses. Immunohistochemistry showed that nodules were high germinal centers with distribution of B cells (CD20+) and T cells (CD3+), similar to that of normal follicle. There was not differential expression of the K and λ light chains. The real time polymerase chain reaction (QRT-PCR) method detected many copies from the genome of type 8 human herpesvirus (VHH-8) (133 copies/μL of DNA) in biopsy of intestinal nodule DNA. VHH-8 infection may to be a significant factor in pathogenesis of lymphoproliferative disorders in patients presenting with CVID.
La colonoscopia como prueba de oro para la pesquisa del cáncer colorrectal Colonoscopy like gold standard test for colorectal cancer screening
Elizabeth Montes de Oca Megías,Guillermo Noa Pedroso,Elsy García Jordá,Osvaldo Seijas Cabrera
Revista Cubana de Medicina , 2013,
Abstract: El cáncer colorrectal presenta alta morbilidad y mortalidad. A pesar de esto, los programas de cribajes en desarrollo no son suficientes para modificar su comportamiento. La colonoscopia es la prueba de oro para la pesquisa y diagnóstico de esta neoplasia y sus lesiones premalignas, por la posibilidad de la exploración total del colon, sin embargo, su alto costo y disponibilidad hacen que existan detractores en cuanto a su uso como un método primario de pesquiza. Se revisó este tema acerca de la utilidad de la colonoscopia como herramienta de cribado para disminuir los índices de morbilidad y de mortalidad por cáncer colorrectal. Colorectal cancer presents a high incidence and mortality. In spite of this, current developing screening programs are not enough to modify its behavior. Colonoscopy is the gold test for this neoplasia investigation and diagnostic and its premalignant lesions, since it gives the possibility of the colon total exploration: However, its high cost and readiness hold detractors concerning its use as a primary method of screening. this issue was reviewed on the usefulness of colonoscopy as a screening tool to reduce morbidity and mortality from colorectal cancer.
Comportamiento del cáncer colorrectal esporádico en un hospital provincial Behavior of sporadic colorectal cancer in a provincial hospital
Elizabeth Montes de Oca Megías,Luis Laureano Soler Porro,Guillermo Noa Pedroso,Caridad de los Milagros Agüero Betancourt
Revista Cubana de Medicina , 2012,
Abstract: Introducción: el cáncer colorrectal ocupa la segunda causa entre las neoplasias malignas en todo el mundo y su incidencia se ha ido incrementando. En 2011, el Anuario Estadístico Cubano reportó 2 039 casos nuevos. El pronóstico de la enfermedad está en relación con el diagnóstico temprano. Objetivo: describir el comportamiento del cáncer colorrectal esporádico. Métodos: se realizó un estudio transversal en el Hospital Universitario "Manuel Ascunce Domenech", Camagüey, Cuba, desde enero-2009 a diciembre-2010. La muestra estuvo constituida por 106 pacientes con este diagnóstico, por colonoscopia y biopsia, que fueron sometidos a cirugía, con el análisis anatomopatológico posterior de la pieza quirúrgica. Los datos fueron obtenidos del registro primario y procesados mediante el sistema SPSS para Windows. Resultados: aumentaron los casos con el incremento de la edad, predominó el sexo masculino (53,8 %) y los pacientes sin antecedentes patológicos familiares (91,5 %), ni personales (76,4 %). El estre imiento (42,4 %) y la enterorragia (33 %) fueron las manifestaciones más frecuentes para los tumores de colon izquierdo, mientras la anemia (27,4 %) y el tumor palpable (22,6 %) lo fueron para los del colon derecho. Hubo mayor porcentaje de la localización anatómica en el colon izquierdo (66,1 %), la variedad polipoidea (59,4 %) y el adenocarcinoma (97,2 %). El estadio B (62,3 %), según la clasificación de Dukes fue el más representado. Conclusiones: nuestros resultados son similares a las tendencias mundiales. El cáncer colorrectal continúa siendo identificado en estadios avanzados, por eso debe ser considerada la implementación de estrategias de escrutinio para reducir la incidencia y la mortalidad. Introduction: the colorectal cancer holds the second place among the malignant neoplasias worldwide and its incidence is growing. The Cuban Statistical Annals of 2011 reported 2 039 new cases. The prognosis depends on early diagnosis. Objective: to describe the behavior of the colorectal cancer. Methods: a cross-sectional study was made in "Manuel Ascunce Domenech" university hospital in Camagüey, Cuba, from January 2009 to December 2010. The sample was made up of 106 patients diagnosed by colonoscopy and biopsy. The surgical sample was subjected to the anatomical and pathological analysis. The data were taken from the primary register and processed in Windows-based SPSS system. Results: the number of cases raised as the age increased, males (53.8 %) and the patients without family history (91.5 %) or personal history (76.4 %) of this pathology predominated. Const
Asociación del virus herpes humano 8 y la hiperplasia linfoide nodular difusa del intestino delgado en la inmunodeficiencia variable común
Kokuina,Elena; Domínguez álvarez,Carlos; Noa Pedroso,Guillermo; Martínez Rodríguez,Pedro Ariel; Kourí Cardellá,Vivian; Gutiérrez Pérez,Yoan; Chong López,Agustín; Marrero Hernández,Delsy; Pérez Román,Guillermo;
Revista Cubana de Hematolog?-a, Inmunolog?-a y Hemoterapia , 2009,
Abstract: the common variable immunodeficiency (cvid) is the more frequent primary immunodeficiency in clinical field and its presentation forms are very variable. we describe the case of a women presenting with adult cvid with chronic diarrhea syndrome, weight loss and diffuse lymphadenopathies, where the more marked immunologic features were a deep hypogammaglobulinemia of the three major kinds of immunoglobulins and numerical decrease of b cells (cd19+) and nk cells (cd3-cd56+) in peripheral blood. biopsy of small intestine obtained by video-assisted panendoscope, showed the presence of a multinodular lymphoid hyperplasia with partial atrophy of hairinesses. immunohistochemistry showed that nodules were high germinal centers with distribution of b cells (cd20+) and t cells (cd3+), similar to that of normal follicle. there was not differential expression of the k and λ light chains. the real time polymerase chain reaction (qrt-pcr) method detected many copies from the genome of type 8 human herpesvirus (vhh-8) (133 copies/μl of dna) in biopsy of intestinal nodule dna. vhh-8 infection may to be a significant factor in pathogenesis of lymphoproliferative disorders in patients presenting with cvid.
Comportamiento de los alelos HLA-DQB1*02 y HLA-DQB1*03 en pacientes con diagnóstico presuntivo de enfermedad celíaca
Torres Odio,Sylvia; Martínez Córdova,Zuzet; Calzadilla Lugo,Flora; García González,Igrid; Santana Porbén,Sergio; Noa Pedroso,Guillermo; Hernández Casas,Yoandy; Gutiérrez Rojas,ángela Rosa; Domínguez álvarez,Carlos;
Revista Cubana de Medicina , 2011,
Abstract: the celiac disease (cd) is autoimmune and it is present in genetically predisposed subjects, characterized by the intolerance to determined proteins present in wheat, rye and barley: called gluten and gliadin. it is known that there is an association between hla-system and celiac disease (hla-dq2/hla-dq8), but there aren't cuban studies on this association, thus we analyzed the behavior of dqb1*02 and dqb1*03 alleles by means of an observational and analytical study in 65 patients with a presumptive diagnosis of celiac disease to include its detection in the diagnostic scheme of this complex disease. there was found that subjects carriers of the dqb1*02 allele (or: 2,26) were more susceptible to suffer this disease than those non-carriers, that the 60% of the supposed patients presenting with the celiac disease had the hla-dq2 allele and the 3% had the hla-dq8 allele. we conclude that the hla-dq2/hla-dq8 genotyping is very useful for the diagnosis of the celiac disease.
Customer Satisfaction, Switching Costs and Customer Loyalty: An Empirical Study on the Mobile Telecommunication Service  [PDF]
Noa Willys
American Journal of Industrial and Business Management (AJIBM) , 2018, DOI: 10.4236/ajibm.2018.84070
Abstract: Previous research mentioned that Customer satisfaction and switching cost play an important role on customer loyalty. Based on empirical study, this present research attempts to evaluate the effect of the switching cost on customer loyalty and identify which one among switching cost dimensions and Customer satisfaction has the most influence on customer loyalty; then investigate the moderate effect of switching cost between customer satisfaction and customer loyalty link. To test the theoretical model, 300 questionnaires were self-administered to the subscribers of all mobile telecommunication providers in Madagascar and 273 questionnaires were returned with 253 questionnaires claimed efficient. Then SPSS 20.0 and regression method was used to establish the relationship between the dependent and independent variables. The findings indicate that there is significant relationship between switching cost and customer loyalty, then customer satisfaction and customer loyalty. It is also showed that among the dimensions of switching cost, financial cost has the most influence on customer loyalty. Even though switching cost shows up a strong effect to customer loyalty, it is always proved that satisfaction is the
Diagnóstico de orientación vocacional de estudiantes de Medicina del policlínico universitario de Nuevitas
Rodríguez Selpa,Silvia de la Caridad; Hernández García,José Guillermo; Duret Castro,Magalys; Noa Castillo,Yailin;
Humanidades M??dicas , 2011,
Abstract: the article presents a diagnosis of the level of vocational guidance of those who enrolled for medicine at nuevitas′ university polyclinic in the academic years 2007-2008 and 2008-2009. a descriptive transversal study was carried out to assess the level of the vocational guidance of students before they began the medical course. results showed that 89.1 % of the students primarily opted for medicine, the level of the vocational guidance of the 84.7 % was deficient, and to be useful to the country was the prevailing reason (95.6 %) of their choice. these deficiencies influenced on the 34.7 % of dropouts due to an inappropriate role of institutions involved. in addition, there were some other reasons that influenced on their decision-making.
Diagnóstico de orientación vocacional de estudiantes de Medicina del policlínico universitario de Nuevitas Diagnosis of vocational guidance of medical students from Nuevitas′ university polyclinic
Silvia de la Caridad Rodríguez Selpa,José Guillermo Hernández García,Magalys Duret Castro,Yailin Noa Castillo
Humanidades M??dicas , 2011,
Abstract: Se presenta un diagnóstico del nivel de orientación vocacional de 46 jóvenes que ingresaron a la carrera de Medicina en el Policlínico Universitario de Nuevitas, en los cursos 2007-2008 y 2008-2009. Se realizó un estudio descriptivo transversal para evaluar el nivel de orientación vocacional de los estudiantes antes de entrar a la carrera. Los resultados mostraron que el 89,1 % de los estudiantes optó por la carrera en la primera opción, el nivel de orientación vocacional del 84,7 % fue deficiente y el motivo que más predominó fue ser útil al país (95,6 %). Se concluyó que estas deficiencias influyeron en la deserción del 34,7 %, pues las instituciones encargadas no jugaron el papel correspondiente. Además, hubo un grupo de motivos que jerarquizaron la toma de decisiones. The article presents a diagnosis of the level of vocational guidance of those who enrolled for Medicine at Nuevitas′ university polyclinic in the academic years 2007-2008 and 2008-2009. A descriptive transversal study was carried out to assess the level of the vocational guidance of students before they began the medical course. Results showed that 89.1 % of the students primarily opted for Medicine, the level of the vocational guidance of the 84.7 % was deficient, and to be useful to the country was the prevailing reason (95.6 %) of their choice. These deficiencies influenced on the 34.7 % of dropouts due to an inappropriate role of institutions involved. In addition, there were some other reasons that influenced on their decision-making.
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