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Search Results: 1 - 10 of 206384 matches for " Ramón Abel; "
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Direct Detection and Quantification of Bacterial Genes Associated with Inflammation in DNA Isolated from Stool  [PDF]
Ramón Gómez-Moreno, Iraida E. Robledo, Abel Baerga-Ortiz
Advances in Microbiology (AiM) , 2014, DOI: 10.4236/aim.2014.415117
Abstract:

Although predominantly associated with health benefits, the gut microbiota has also been shown to harbor genes that promote inflammation. In this work, we report a method for the direct detection and quantification of these pro-inflammatory bacterial genes by PCR and qPCR in DNA extracted from human stool samples. PCR reactions were performed to detect (i) the pks island genes, (ii) tcpC, which is present in some strains of Escherichia coli and (iii) gelE presented in some strains of Enterococcus faecalis. Additionally, we screened for the presence of the following genes encoding cyclomodulins that disrupted mammalian cell division: (iv) cdt (which encodes the cytolethal distending toxin) and (v) cnf-1 (which encodes the cytotoxic necrotizing factor-1). Our results show that 20% of the samples (N = 41) tested positive for detectable amounts of pks island genes, whereas 10% of individuals were positive for tcpC or gelE and only one individual was found to harbor the cnf-1 gene. Of the 13 individuals that were positive for at least one of the pro-inflammatory genes, 5 were found to harbor more than one. A quantitative version of the assay, which used real-time PCR, revealed the pro-inflammatory genes to be in high copy numbers: up to 1.3 million copies per mg of feces for the pks island genes. Direct detection of specific genes in stool could prove useful toward screening for the presence of pro-inflammatory bacterial genes in individuals with inflammatory bowel diseases or colorectal cancer.

Impacto de la reforma del sistema de seguridad social sobre la equidad en los servicios de salud en Colombia
Céspedes-Londo?o, Juan Eduardo;Jaramillo-Pérez, Iván;Casta?o-Yepes, Ramón Abel;
Cadernos de Saúde Pública , 2002, DOI: 10.1590/S0102-311X2002000400008
Abstract: to evaluate the impact on access to, and use of, health services in colombia's new national health insurance system, the authors compared two cross sections of the population: before (1993) and after (1997), with the approval of act 100, creating the general system for social security in health (sgsss). two equity indicators were assessed: concentration curves (cc) and concentration indices (ci), summarizing the distribution of access to health care and utilization of health care services provided by the sgsss according to income deciles. between 1993 and 1997, the ci for access to insurance halved from 0.34 to 0.17; simultaneously, coverage increased from 23% to 57%, especially among the poorest segments of the population, where it increased from 3.7% to 43.7% as a result of subsidies provided by local governments. the ci for utilization of health care services did not vary significantly. increased disease prevalence and utilization of services among the insured, due to biased selection of risks and moral hazards, were also documented. these findings suggest a positive impact by the reform on inequalities in access to health care insurance; however, a similar effect on inequities in utilization of health services is not clear.
Posibilidades del enfoque CTS como eje articulador de la educación superior tecnológica y el entorno social en contextos locales Possibilidades do enfoque de CTS como eixo articulador da educa o superior tecnológica e o ambiente social em contextos locais Possibilities of an STS approach, as an articulating axis of higher technological education and the social environment in local communities
Héctor Valenzuela Méndez,Ramón Villa Medina,Abel Leyva Castellanos,Enrique Farfán Mejía
Revista CS , 2010,
Abstract: En el presente trabajo se hace una revisión de los cambios que la transformación actual de la sociedad impone a los centros de ense anza tecnológica y a la organización de los saberes en los entornos comunitarios específicos. A demás se analizan las políticas de intervención que emergen de instituciones tanto internacionales como mexicanas. Se exploran las posibilidades de articulación del enfoque CTS para la educación, desarrollo tecno-científico y desarrollo social en una comunidad minera y fronteriza del norte de México. This paper provides a review of the changes imposed by the current transformation of society on technological education centers and on the organization of knowledge in specific community settings. It also analyzes the intervention polices that arise from both Mexican and international institutions. It explores possibilities for articulating the STS approach with education, scientific, technological and social development in a border mining community located in the north of Mexico
Impacto de la reforma del sistema de seguridad social sobre la equidad en los servicios de salud en Colombia
Céspedes-Londo?o Juan Eduardo,Jaramillo-Pérez Iván,Casta?o-Yepes Ramón Abel
Cadernos de Saúde Pública , 2002,
Abstract: Para evaluar el impacto sobre la equidad en el acceso y en la utilización de servicios de salud del nuevo Sistema General de Seguridad Social en Salud Colombiano (SGSSS), se compararon dos cortes transversales de la población, antes (1993) y después (1997) de promulgada la Ley 100, de 1993, que lo creó, con respecto a dos indicadores de equidad: las curvas (CC) e índices de concentración (IC) correspondientes a la distribución del aseguramiento y a la utilización de servicios. Entre 1993 y 1997, el IC en el aseguramiento se redujo a la mitad, del 0,34 al 0,17; simultáneamente, la cobertura del SGSSS se incrementó del 23% al 57%, sobretodo entre los segmentos más pobres de la población, donde pasó del 3,1% al 43,7%, como resultado de los subsidios otorgados por los gobiernos locales. Los IC en la utilización de servicios variaron muy poco. Adicionalmente, se detectó una mayor prevalencia de enfermedad y utilización de servicios entre los asegurados, debido a selección sesgada de riesgos y riesgo moral. Estos resultados sugieren un impacto positivo del SGSSS sobre las inequidades en el acceso al aseguramiento; sin embargo, no se evidenció un impacto claro sobre la equidad en la utilización final de servicios.
Body and craneofacial measurements for defining criteria of phenotypic variation in Down's syndrome Medidas corporales y craneofaciales para definir criterios de variación fenotípica en el síndrome de Down, Medellín 1998
Ramiro Rincón Rodríguez,José Luis Ramírez Castro,Gonzálo Vásquez,Abel Díaz Cadavid
Iatreia , 2000,
Abstract: Twenty four five year old male children with full 21 trisomy syndrome, without congenital heart anomalies, and twenty four healtly children of the same age and sex, as controls, were studied, in order to define the direct measurements that permit discriminating between Down’s syndrome (DS) and no Down syndrome (NDS), to characterize those with DS, to find the differences with the NDS ones, to determine DS subgroups and to compare the observations of the clinicians. Thirty seven direct measurements of head, face, trunk, upper and lower limbs were performed. Out of them three classified and separated DS and NDS children (100%). Five observations performed by clinicians only discriminate 79,1% of the DS children. In the DS children, by grouping the variables, five subgroups were detected; only one of these included the variables used by the clinicians, namely: weight, leg length, hand length, ear width, helix width and nasal index in DS and weigth, helix width and nasal index in NDS had the higher variation coefficient. DS children have lesser weight and size. Con el propósito de establecer las medidas directas que permitan discriminar a los pacientes con síndrome de Down (SD) de los no SD, caracterizar los de SD, hallar las diferencias con los no SD, determinar subgrupos dentro de los de SD y comparar las observaciones realizadas por los clínicos, se estudiaron 24 pacientes con SD, de sexo masculino y 5 a os de edad, que presentaban trisomía libre del cromosoma 21 y que no tenían anomalías cardíacas congénitas, y 24 ni os sanos de la misma edad como controles. Se realizaron 37 medidas directas en cabeza, cara, tronco, miembros superiores e inferiores. Tres de las 37 clasifican y separan a los de SD de los no SD (100%); cinco observaciones realizadas por los clínicos sólo discriminaron el 79,1% de los de SD. En la agrupación por variables se conformaron cinco subgrupos en los de SD; sólo uno de ellos contenía las variables utilizadas por los clínicos. Las variables con mayor coeficiente de variación fueron: peso, longitud de la pierna, longitud de la mano, ancho de la oreja, ancho del hélix e índice nasal en el SD; peso, ancho del hélix e índice nasal en los no SD. Los ni os con SD presentaron menores talla y peso.
Misoprostol para aborto precoz en la adolescencia Misoprostol to the early abortion in adolescence
Belkis Rodríguez Vázquez,Abel García Bencomo,Ramón Valdés Carrillo,Rosendo Sánchez
Revista de Ciencias M??dicas de Pinar del R?-o , 2004,
Abstract: El aborto en la adolescencia constituye un problema a nivel mundial por lo que encontrar métodos efectivos para disminuir la morbi-mortalidad por esta causa, constituirá un éxito y es precisamente el Misoprostol quien ayudará a resolver este problema. En nuestro trabajo utilizamos 800 mcg de Misoprostol por vía vaginal y se siguió la paciente ultrasonográficamente repitiendo la dosis si necesario hasta tres veces, en un total de 212 adolescentes que acudieron al Hospital Abel Santamaría solicitado método abortivo y cumplían los requisitos aplicando el método y demostrando finalmente su seguridad y efectividad. La edad promedio de las pacientes fue de 17.1 a os con una desviación de 1.2 a os con una media de tiempo gestacional de 7 semanas, encontrando además un elevado porciento de pacientes solteras (75.7 %). Las reacciones secundarias fueron: dolor (90 %), diarreas (33.7 %), cefalea (17.4 %), entre otras. El tiempo de expulsión optimo fue de 6 a 8 horas (91.7 %) y solo el 3.3 % le duro el sangramiento mas de 14 días sin complicaciones, pues no hubo necesidad de transfundir no legrar y estos fueron los casos con endometrio mayor de 24 mm. Hubo mayor efectividad en las pacientes con tiempo gestacional entre 7 y 10 semanas y la efectividad global del método fue de 99.05 % a pesar de que en la primera dosis fue de 97.64 %. Abortion in adolescence continues to be a worldwide problem. That is why effective methods should be found to diminish morbidity and mortality due to its cause. Misoprostol would help to solve this health problem. Misoprostol (800 mcg) was used per vaginam and patients were followed sonographically repeating dosages when necessary up to three times. This method was used in 212 adolescents who attended to Abel Santamaría Hospital for abortion. These patients met all requirements and the method was used showing its safety and effectiveness. The average age was 17.1 years having a deviation of 1.2 years, the mean pregnancy time was 7 weeks, most of the patients were single (75.7 %). Side effects were: pain (90 %), diarrhea (33.7 %), headache (17.4 %) among others. The best expulsion stage was 6 to 8 hours (91.7 %). Patients having an endometrium > 24 mm (3.3 %) suffered from bleeding for more than 14 days without complications (there was no need of blood transfusion or curettage). The best effectiveness was obtained in patients between 7 and 10 weeks of pregnancy and the total effectiveness of the method was 99.05 % despite the first dosage was 97.64 %.
Redes neuronales artificiales en la estimación de la evapotranspiración de referencia
Cervantes-Osornio, Rocío;Arteaga-Ramírez, Ramón;Vázquez-Pe?a, Mario Alberto;Quevedo-Nolasco, Abel;
Revista mexicana de ciencias agrícolas , 2011,
Abstract: artificial neural networks represent a vast research field, since they have demonstrated application in various fields of science. its ability to cope with nonlinearities in several different phenomena and work in the estimation or forecast meteorological variables, which act directly and indirectly in reference evapotranspiration and actual evapotranspiration, have led to this work development. the aim was to present a literature review on artificial neural networks for reference evapotranspiration estimating and related variables, including: theory and artificial neural networks foundations and backpropagation algorithm, some similarities and differences between traditional statistical models and artificial neural networks, applications of artificial neural networks in reference evapotranspiration estimating and variables associated with the prospects of artificial neural networks in agroclimatic variables prediction. static neural multilayer networks, are so far the most common in reference evapotranspiration estimation and a change in applying artificial neural networks of dynamic type trend looms.
Inguinodinia en postoperados de plastía inguinal con técnica de Lichtenstein con resección versus preservación del nervio ilioinguinal ipsilateral
Pulido-Cejudo, Abraham;Carrillo-Ruiz, José Damián;Jalife-Monta?o, Abel;Zaldívar-Ramírez, Felipe Rafael;Hurtado-López, Luis Mauricio;
Cirujano general , 2012,
Abstract: objetivo: evaluar la inguinodinia en pacientes postoperados de plastía inguinal tipo lichtenstein, comparando la sección contra la preservación de nervio ilioinguinal. sede: clínica de hernias del servicio de cirugía general del hospital general de méxico. dise?o: ensayo clínico controlado, doble ciego. análisis estadístico: prueba de wilcoxon y u de mann-whitney. material y métodos: a 40 pacientes se les realizó plastía tipo lichtenstein; aleatoriamente, en 18 se seccionó el nervio ilioinguinal y en 22 se preservó. se evaluó la sensibilidad cutánea pre y postoperatoria, con escala visual análoga para la intensidad del dolor, con el fin de determinar si la sección del nervio ilioinguinal disminuye o no la intensidad del dolor y la presentación de inguinodinia postoperatoria. resultados: hubo diferencia significativa en cuanto a reducción del dolor a favor de los pacientes en que se seccionó el nervio a partir de 24 horas del postoperatorio (p < 0.001) y a los 60 días del postoperatorio (p < 0.0001), sin presentarse inguinodinia, alodinia, ni molestias por la hipoestesia o anestesia. conclusión: la sección del nervio ilioinguinal durante la reparación de la hernia inguinal con la técnica de lichtenstein disminuye el dolor postoperatorio en forma óptima, sin alterar en forma importante la sensibilidad superficial y además evita la inguinodinia.
Seguimiento a mediano plazo tras la implantación de stents coronarios convencionales en mujeres
Leyva Quert,Abel Yoandri; Conde Pérez,Pedro; Méndez Peralta,Tomas; Almeida Gómez,Javier; Valdés Recarey,Manuel; Claro Valdez,Ramón;
Revista Cubana de Medicina , 2009,
Abstract: gender role after coronary stents implantation even arouse controversies. this is a study to characterize the medium term course of women treated with coronary stents from january 2006 to december 2007. the following adverse cardiac major events (acme) were considered: cardiac death, non-fatal myocardium infarct, and the need of revascularization of target lesion. survival rates were estimated by means of kaplan meier method. in multivariate analysis cox regression model was used. were included 162 women during follow-up (12,9±4,7 months), 32 had some mayor event, 3 had a non-fatal myocardium infarct with only one deceased . acme-free survival and revascularization of target lesions at a year were of 69,49 and 78,07 %, respectively. multi-arteries intervention, stents implantation with a diameter lesser than 3 mm, and systolic dysfunction of left ventricle shadowed the prognosis during follow-up.
Misoprostol para aborto precoz en la adolescencia
Rodríguez Vázquez,Belkis; García Bencomo,Abel; Valdés Carrillo,Ramón; Sánchez,Rosendo; Martínez Fábregas,Armando;
Revista de Ciencias M??dicas de Pinar del R?-o , 2004,
Abstract: abortion in adolescence continues to be a worldwide problem. that is why effective methods should be found to diminish morbidity and mortality due to its cause. misoprostol would help to solve this health problem. misoprostol (800 mcg) was used per vaginam and patients were followed sonographically repeating dosages when necessary up to three times. this method was used in 212 adolescents who attended to abel santamaría hospital for abortion. these patients met all requirements and the method was used showing its safety and effectiveness. the average age was 17.1 years having a deviation of 1.2 years, the mean pregnancy time was 7 weeks, most of the patients were single (75.7 %). side effects were: pain (90 %), diarrhea (33.7 %), headache (17.4 %) among others. the best expulsion stage was 6 to 8 hours (91.7 %). patients having an endometrium > 24 mm (3.3 %) suffered from bleeding for more than 14 days without complications (there was no need of blood transfusion or curettage). the best effectiveness was obtained in patients between 7 and 10 weeks of pregnancy and the total effectiveness of the method was 99.05 % despite the first dosage was 97.64 %.
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