Beckwith Wiedemann Syndrome : presentation of a case report

Beckwith Wiedemann Syndrome (BWS) is a rare congenital disease of low prevalence. However, it presents a high prevalence within the genetic pathologies of overgrowth. This syndrome presents typical manifestations such as macroglossia, macrosomy at birth, omphalocele and defects of the anterior abdominal wall. Its origin is known to be genetic, but its mechanism of generation is not clear. This syndrome has been the object of wide studies since investigators have established a relationship between the methods of assisted fertilization (assisted reproduction treatment, ART) and its appearance. Currently, research is oriented towards the improvement of the prenatal diagnostic techniques, which would allow a preparation of the multidisciplinary medical team to treat the pathologies with which these patients are born. Next we present the case of a 1 year-old child who consults this service with a diagnosis of macroglossia associated with BWS

Oral metastasis of renal cell carcinoma : presentation of a case

The oral cavity constitutes a site of low prevalence for metastasis of malignant tumors. Nevertheless, it has a high prevalence for metastasis of renal origin. Besides the kidneys, there are other primary sites with high prevalence of metastasis to the oral mucosa, such as the lungs, skin and breasts. Metastasis is common in patients with a background of treated renal tumors, thereby, it is proper to determine the possibility of oral metastasis as part of the protocol of attention. However, it constitutes a diagnostic challenge when it presents in patients with no renal antecedents. It is in this type of patients that the diagnosis of carcinoma is achieved by means of a metastasis. Survival rate in these patients is short because at the time of the metastasis diagnosis, the general compromise is high. The following report describes a case referred from the Rheumatology Unit with an intraoral tumor, that was finally diagnosed as a Metastasic Renal Cell Carcinoma with multiple metastasis

Decreased Equilibrative Nucleoside Transporter 1 (ENT1) Activity Contributes to the High Extracellular Adenosine Levels in Mesenchymal Glioblastoma Stem-Like Cells.

Glioblastoma multiforme is one of the most malignant types of cancer. This is mainly due to a cell subpopulation with an extremely aggressive potential, called glioblastoma stem-like cells (GSCs). These cells produce high levels of extracellular adenosine which has been associated with increased chemoresistance, migration, and invasion in glioblastoma. In this study, we attempted to elucidate the mechanisms that control extracellular adenosine levels in GSC subtypes. By using primary and U87MG-derived GSCs, we associated increased extracellular adenosine with the mesenchymal phenotype. [3H]-adenosine uptake occurred mainly through the equilibrative nucleoside transporters (ENTs) in GSCs, but mesenchymal GSCs have lower expression and ENT1-mediated uptake activity than proneural GSCs. By analyzing expression and enzymatic activity, we determined that ecto-5′-nucleotidase (CD73) is predominantly expressed in proneural GSCs, driving AMPase activity. While in mesenchymal GSCs, both CD73 and Prostatic Acid Phosphatase (PAP) contribute to the AMP (adenosine monophosphate) hydrolysis. We did not observe significant differences between the expression of proteins involved in the metabolization of adenosine among the GCSs subtypes. In conclusion, the lower expression and activity of the ENT1 transporter in mesenchymal GSCs contributes to the high level of extracellular adenosine that these GSCs present.post-print2,37 M

Identification and characterization of a nodH ortholog from the alfalfa-nodulating Or191-like rhizobia

Nodulation of Medicago sativa (alfalfa) is known to be restricted to Sinorhizobium meliloti and a few other rhizobia that include the poorly characterized isolates related to Rhizobium sp. strain Or191. Distinctive features of the symbiosis between alfalfa and S. meliloti are the marked specificity from the plant to the bacteria and the strict requirement for the presence of sulfated lipochitooligosaccharides (Nod factors [NFs]) at its reducing end. Here, we present evidence of the presence of a functional nodH-encoded NF sulfotransferase in the Or191-like rhizobia. The nodH gene, present in single copy, maps to a high molecular weight megaplasmid. As in S. meliloti, a nodF homolog was identified immediately upstream of nodH that was transcribed in the opposite direction (local synteny). This novel nodH ortholog was cloned and shown to restore both NF sulfation and the Nif +Fix+ phenotypes when introduced into an S. meliloti nodH mutant. Unexpectedly, however, nodH disruption in the Or191-like bacteria did not abolish their ability to nodulate alfalfa, resulting instead in a severely delayed nodulation. In agreement with evidence from other authors, the nodH sequence analysis strongly supports the idea that the Or191-like rhizobia most likely represent a genetic mosaic resulting from the horizontal transfer of symbiotic genes from a sinorhizobial megaplasmid to a not yet clearly identified ancestor.Instituto de Biotecnologia y Biologia Molecula

Identification and characterization of a nodH ortholog from the alfalfa-nodulating Or191-like rhizobia

Nodulation of Medicago sativa (alfalfa) is known to be restricted to Sinorhizobium meliloti and a few other rhizobia that include the poorly characterized isolates related to Rhizobium sp. strain Or191. Distinctive features of the symbiosis between alfalfa and S. meliloti are the marked specificity from the plant to the bacteria and the strict requirement for the presence of sulfated lipochitooligosaccharides (Nod factors [NFs]) at its reducing end. Here, we present evidence of the presence of a functional nodH-encoded NF sulfotransferase in the Or191-like rhizobia. The nodH gene, present in single copy, maps to a high molecular weight megaplasmid. As in S. meliloti, a nodF homolog was identified immediately upstream of nodH that was transcribed in the opposite direction (local synteny). This novel nodH ortholog was cloned and shown to restore both NF sulfation and the Nif +Fix+ phenotypes when introduced into an S. meliloti nodH mutant. Unexpectedly, however, nodH disruption in the Or191-like bacteria did not abolish their ability to nodulate alfalfa, resulting instead in a severely delayed nodulation. In agreement with evidence from other authors, the nodH sequence analysis strongly supports the idea that the Or191-like rhizobia most likely represent a genetic mosaic resulting from the horizontal transfer of symbiotic genes from a sinorhizobial megaplasmid to a not yet clearly identified ancestor.Instituto de Biotecnologia y Biologia Molecula

Variación en la prevalencia de hipertensión arterial al emplear los criterios AHA-2017 en adultos de 2 poblaciones rurales de Ecuador

Objetivo: el objetivo de este estudio es evaluar la variaciónen la prevalencia de hipertensión arterial (HTA) al aplicar loscriterios del ACC/AHA 2017 en sujetos adultos de 2 poblacionesrurales de Ecuador.Materiales y métodos: Se realizó un estudio de campo, descriptivo,transversal que incluyó a 904 individuos de ambossexos de las parroquias rurales Cumbe y Quingeo. La prevalenciade HTA se determinó utilizando los criterios del JNC-7y del ACC/AHA 2017, calculándose el incremento relativo enla prevalencia.Resultados: De los 904 sujetos, 62,1% (n=561) fueron mujeres.La prevalencia global de HTA según el JNC-7 fue de17,4%, mientras que aplicando los criterios del ACC/AHA2017 fue de 50,4%, con un incremento relativo de prevalenciade 189,7%. Este aumento fue más importante en hombres,grupo etario más joven (18-44 años), los empleados yla clase media-alta.Conclusiones: existen importantes variaciones en la prevalenciade HTA al emplear los nuevos puntos de corte sugeridospor el ACC/AHA 2017, con un incremento considerablemayor de 180%. Sin embargo, no se recomienda su aplicacióna corto plazo en nuestra región considerando el impactoepidemiológico desfavorable que puede generar

VIII Encuentro de Docentes e Investigadores en Historia del Diseño, la Arquitectura y la Ciudad

Acta de congresoLa conmemoración de los cien años de la Reforma Universitaria de 1918 se presentó como una ocasión propicia para debatir el rol de la historia, la teoría y la crítica en la formación y en la práctica profesional de diseñadores, arquitectos y urbanistas. En ese marco el VIII Encuentro de Docentes e Investigadores en Historia del Diseño, la Arquitectura y la Ciudad constituyó un espacio de intercambio y reflexión cuya realización ha sido posible gracias a la colaboración entre Facultades de Arquitectura, Urbanismo y Diseño de la Universidad Nacional y la Facultad de Arquitectura de la Universidad Católica de Córdoba, contando además con la activa participación de mayoría de las Facultades, Centros e Institutos de Historia de la Arquitectura del país y la región. Orientado en su convocatoria tanto a docentes como a estudiantes de Arquitectura y Diseño Industrial de todos los niveles de la FAUD-UNC promovió el debate de ideas a partir de experiencias concretas en instancias tales como mesas temáticas de carácter interdisciplinario, que adoptaron la modalidad de presentación de ponencias, entre otras actividades. En el ámbito de VIII Encuentro, desarrollado en la sede Ciudad Universitaria de Córdoba, se desplegaron numerosas posiciones sobre la enseñanza, la investigación y la formación en historia, teoría y crítica del diseño, la arquitectura y la ciudad; sumándose el aporte realizado a través de sus respectivas conferencias de Ana Clarisa Agüero, Bibiana Cicutti, Fernando Aliata y Alberto Petrina. El conjunto de ponencias que se publican en este Repositorio de la UNC son el resultado de dos intensas jornadas de exposiciones, cuyos contenidos han posibilitado actualizar viejos dilemas y promover nuevos debates. El evento recibió el apoyo de las autoridades de la FAUD-UNC, en especial de la Secretaría de Investigación y de la Biblioteca de nuestra casa, como así también de la Facultad de Arquitectura de la UCC; va para todos ellos un especial agradecimiento

Risk factors for suicide in adolescent survivors of the city of Ambato

El suicidio como muerte autoinfligida es una problemática a nivel mundial, considerando que en la actualidad hay un alto índice de mortalidad según el Ministerio de Salud Pública del Ecuador, ya que en las tres últimas décadas se ha identificado un alto índice de muerte por suicidio de alrededor del 56% a nivel nacional

La profesionalización del docente universitario: Apuntes en torno a la implementación de estrategias institucionales en la Universidad

La profesionalización pedagógica del docente universitario, se considera como uno de los grandes retos de la Educación Superior y constituye la base para la solución de otros grandes problemas planteados a la Universidad actual. La dirección estratégica eficiente y eficaz de este proceso a nivel institucional y su vínculo armónico con la evaluación de la Universidad, constituye el problema científico que este artículo aspira a que sus resultados teóricos contribuyan a su solución

The professionalization of university teacher: Notes regarding the implementation of corporate strategies in college

The professionalization o f the university professor, is considered one of the great challenges of higher education and is the basis for the solution of other major problems with the current University. The effective strategic direction of this process at the institutional level an d harmonious relationship with the evaluation of the University, is the scientific problem that this article suggests its theoretical results contribute to their solution