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Search Results: 1 - 10 of 144538 matches for " Marisol del V Cano "
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PPAR- Ligands as Potential Therapeutic Agents for Wet Age-Related Macular Degeneration
Marisol del V Cano,Peter L. Gehlbach
PPAR Research , 2008, DOI: 10.1155/2008/821592
Abstract: The peroxisome proliferator-activated receptors (PPAR's) are members of the steroid/thyroid nuclear receptor, superfamily of transcription factors. There are currently three known PPAR subtypes, , , and . The PPARs are now recognized participants in a number of biological pathways some of which are implicated in the pathogenesis of age-related macular degeneration (AMD). These include immune modulation, lipid regulation, and oxidant/antioxidant pathways important to the onset and progression of “dry” AMD, and vascular endothelial growth factor (VEGF) mediated pathways that stimulate choroidal neovascularization (CNV), characteristic of “wet” AMD. PPAR- is found in retina and also on vascular cells important to formation of CNV. At this time, however, relatively little is known about potential contributions of PPAR- to the pathogenesis of dry and wet AMD. This review examines current literature for potential roles of PPAR- in the pathogenesis and potential treatment of AMD with emphasis on prevention and treatment of wet AMD.
MRI-Brachytheraphy of Cervical Carcinoma—A Pictorial Review for the Radiologist  [PDF]
M. Jiménez de la Pe?a, E. del Cerro Pe?alver, E. Alvárez Moreno, R. Cano Alonso, V. Martínez de Vega
Open Journal of Radiology (OJRad) , 2012, DOI: 10.4236/ojrad.2012.23015
Abstract: Exact staging of cervical malignant neoplasms is essential in the selection of the most favorable therapy. MR imaging plays a comprehensive role in primary tumor staging. It monitors response to treatment, detects recurrence and helps in the planning of radiotherapy. Patients with advanced disease usually receive external-beam radiation therapy followed by intracavitary brachytherapy with concurrent chemotherapy. Brachytherapy based on cross-sectional imaging, especially MR imaging, improves local control and overall survival. MRI-based brachytherapy allows accurate positioning of the probe and the depiction of the tumor volume contour, which also permits individualized treatment planning. In order to obtain successful radiation treatment, the radiologist must provide the radiation oncologist with adequate knowledge regarding this technique and its possible complications.
?Por qué se constituyó una Comisión Nacional de ética y Bioética en Enfermería?
Amaro Cano,María del Carmen; Enríquez Borges,. Hilda; Vázquez Priet,Isabel; Morf,Teresa;
Revista Cubana de Enfermer?-a , 2001,
Abstract: this paper deals with the personal experiences of the founders of the national commission of nursing ethics. all the information given by them about the setting-up of the commission, its objectives and immediate and mediate prospects are included here. this paper was submitted to the i meeting-workshop organized by the professorships of bioethics of the higher institue of medical sciences of havana, in 1996. this meeting was of great interest for the participants, among whom there were physicians, stomatologists, philosophers, psychologists, sociologists, lawyers and pedagogists. the early view about the topic of cuban nurses and the role played by their national division and the cuban nursing society that at that time decided to give all the logistic and moral support to this humanistic discipline so important for professional development and, specially, for competence and performance, attracted our attention.
Por qué se constituyó una Comisión Nacional de ética y Bioética en Enfermería?
María del Carmen Amaro Cano,. Hilda Enríquez Borges,Isabel Vázquez Priet,Teresa Morf
Revista Cubana de Enfermer?-a , 2001,
Abstract: Se recoge el testimonio de las fundadoras de la Comisión Nacional de ética en Enfermería, quienes aportan toda la información acerca del proceso de formación de la Comisión, sus objetivos y perspectivas inmediatas y mediatas. El trabajo fue presentado en el I Encuentro-Taller que realizaron las Cátedras de Bioética del Instituto Superior de Ciencias Médicas de La Habana, en 1996, el cual resultó de gran interés para los participantes, entre quienes se encontraban médicos, estomatólogos, filósofos, psicólogos, sociólogos, juristas y pedagogos. Llamó la atención la temprana visión acerca del tema de las enfermeras cubanas, su Dirección Nacional y la Sociedad Cubana de Enfermería, que en momentos tan tempranos como esa fecha, decidieran prestar todo el apoyo logístico y moral a esta disciplina humanística tan importante en el desarrollo profesional, especialmente en la competencia y el desempe o. This paper deals with the personal experiences of the founders of the National Commission of Nursing Ethics. All the information given by them about the setting-up of the Commission, its objectives and immediate and mediate prospects are included here. This paper was submitted to the I Meeting-Workshop organized by the Professorships of Bioethics of the Higher Institue of Medical Sciences of Havana, in 1996. This meeting was of great interest for the participants, among whom there were physicians, stomatologists, philosophers, psychologists, sociologists, lawyers and pedagogists. The early view about the topic of Cuban nurses and the role played by their National Division and the Cuban Nursing Society that at that time decided to give all the logistic and moral support to this humanistic discipline so important for professional development and, specially, for competence and performance, attracted our attention.
On the free, safe, and timely execution of component-based systems
Julio Cano,Marisol García-Valls
Computer Science , 2015,
Abstract: Traditional real-time systems are reluctant to integrate dynamic behavior since it challenges predictability and timeliness. Current efforts are starting to address the inclusion of a controllable level of dynamicity in real-time systems to increase the degree of freedom or flexibility in the execution of real-time systems. This is mainly achieved by imposing a set of bounds and limitations to the allowed system structure and operations during a transition. The ultimate goal is to time-bound the duration and result of the system state transitions. One of the main obstacles for run-time transitions is the difficulty in characterizing the different operations and phases of a run-time system transition to guarantee a time bound for each phase. In this paper, an infrastructure is described to ensure the timely execution of state transitions that can be safely incorporated and performed at run-time in a component-based real-time system, preserving its temporal properties. The infrastructure allows to perform different management operations to modify components at run-time ensuring the overall schedulability of the system. The infrastructure is validated by its implementation in a specific component-based framework.
Seroprevalencia de leptospirosis humana en un asentamiento del área urbana de la ciudad de Guatemala Seroprevalence of human leptospirosis in a settlement of the urban area in Guatemala city
María Luisa García Masaya,Mariana Elizabeth Herrera García,Aliz Marisol Pérez Vásquez,Leticia del Carmen Castillo Signor
Revista Cubana de Medicina Tropical , 2013,
Abstract: Introducción: aunque la leptospirosis es considerada una enfermedad de ambientes rurales, la reciente aparición de epidemias urbanas la hace emerger como un problema en salud pública. En Guatemala (2008), se demostró una seroprevalencia de 51,8 % en áreas rurales, por lo que es importante llevar a cabo estudios en áreas urbanas que permitan establecer el impacto que pudiera tener en la población guatemalteca. Objetivos: determinar la seroprevalencia de leptospirosis humana en un asentamiento ubicado en la ciudad de Guatemala, así como los serovares de Leptospira interrogans circulantes y los factores de riesgo asociados a la exposición con esta bacteria. Métodos: participaron 119 habitantes con 6 a os y más de los 2 sexos, que aceptaron, previo consentimiento informado. Con una entrevista estructurada se recolectaron los datos sociodemográficos y las muestras de sangre venosa. La técnica de microaglutinación y ELISA IgG se utilizaron para la detección de anticuerpos. Los sueros se enfrentaron a 20 serovariedades de Leptospira interrogans sensu lato. La prevalencia se determinó con un IC95% y las variables sociodemográficas con chi cuadrado, la razón de prevalencia con Epi Info 3.5.1. Resultados: la seroprevalencia de leptospirosis en la población estudiada resultó de 30,3 %, (IC95%). Los serovares más frecuentes fueron Australis y Lanka (11,1 % ambos). El título más frecuente fue de 1:80 por microaglutinación. En la población se encontraron distintos factores de riesgo, pero ninguno mostró una asociación significativa con la presencia de anticuerpos anti-Leptospira (p> 0,05). Conclusiones: la seroprevalencia de leptospirosis detectada fue de 30,3 % en los habitantes del asentamiento ubicado en la ciudad de Guatemala, la cual es comparable a las áreas urbanas de países en donde esta enfermedad es hiperendémica, por lo que es importante implementar medidas de prevención y de control de la enfermedad en la comunidad, en forma conjunta con la municipalidad del distrito. Introduction: although leptospirosis is considered a rural environment disease, recent urban epidemics make it emerge as a public health problem. A seroprevalence of 51.8 % has been found in rural areas of Guatemala; therefore it is important to establish the impact that this disease may have on the Guatemalan urban population. Objectives: to determine the seroprevalence of human leptospirosis in a settlement of Guatemala city and also to identify urban Leptospira interrogans serovars and risk factors associated with exposure to the bacteria. Methods: there were selected 119 people aged 6 yea
Evolución de un cráter de explosión (maar) riolítico: Hoya de Estrada, campo volcánico Valle de Santiago, Guanajuato, México
Cano-Cruz, Marisol;Carrasco-Nú?ez, Gerardo;
Revista mexicana de ciencias geológicas , 2008,
Abstract: hoya de estrada is one of the explosion craters (maar volcano) forming the valle de santiago volcanic field, (guanajuato), méxico. it is located at the northeastern corner of michoacán-guanajuato volcanic field, -within the central part of the transmexican volcanic belt. the craterhoya de estrada is one of the few maar type volcanoes ofrhyolitic composition. the hoya de estrada geologic evolution comprises two main stages: an explosive one forming the maar crater, -which -was foliowed by an effusive stage. the maar-forming stage includes two main units separated by a local erosive contact. the lower unit is characterized by sequences of indurated ashy surges interbedded with some massive layers of clast-supported coarse lapilli, composed predominantly of rhyolite pumice and lava, in addition to accidental lithics. the upper unit is composed of medium to coarse lapilli massive fallout layers, which are intercalated with a few thin, indurated fine ash beds. this upper unit includes a basal part with abundant rhyolitic pumice and lava clasts (sio2 77 %), which exhibits small enclaves of mafic magma (basaltic-trachyandesite). the presence of these products suggests periodic injection of basaltic-trachyande site magma (sio255-56 %), while rhyolitic magma rises during the emplacement of this unit. injection of mafic magma should have played an important role in reducing the water/magma ratios, and increasing the volume of magma. therefore, it may have changed from one phreatomagmatic eruption (rhyolitic magma) to a magmatic spatter-lava eruption (basaltic-trachyande site magma), which occurred within the crater. the preferential distribution ofthepyroclastic deposits of the upper unit, as well as the spatter rocks to the west, suggest a possible migration of the eruptive locus into that direction, and this may be controlled by the regional e-w-trending structural system.
Soil and Phytosociological Characterisation of Grasslands in the Western Mediterranean  [PDF]
A. Cano-Ortiz, E. Bioindi, C. J. Pinto Gomes, S. Del Río González, E. Cano
American Journal of Plant Sciences (AJPS) , 2014, DOI: 10.4236/ajps.2014.521337
Abstract: A study was made of grasslands in olive groves with a high frequency of Hordeum leporinum Link, Chrysanthemum coronarium L., Malva neglecta Wallr., Aegilops geniculata Roth and Dasypyrum villosum (L.) Borbas, initially included in the alliance Hordeion leporini Br.-Bl. in Br.-Bl., Gajewski, Wraber & Walas 1936 corr. O. Bolós 1962, and sub-alliance Malvenion neglectae Gutte 1966. The study was carried out in the western Mediterranean (Spain, Italy, Portugal and northern Morocco). The soil and phytosociological treatment of the samples contributes information for new plant communities. In the study of plant communities, the indices of degree of presence are adapted to those of Van der Maarel. The new alliance Securigero securidacae-Dasypyrion villosi is proposed for the sub-Mediterranean and Euro-Siberian territories, with the new communities Securigero securidacae-Dasypyretum villosi and Convolvulo elegantissimi-Aegilopetum geniculatae. This last community, due to its richness in Aegilops geniculata Roth, could be included in the alliance
Validación preclínica de extractos fluidos de Croton argenteus L.
Morón Rodríguez,Francisco; Victoria Amador,María del Carmen; Morejón Rodríguez,Zulema; Martínez Guerra,María Julia; López Barreiro,Marisol; Fuentes Fiallo,Víctor;
Revista Cubana de Plantas Medicinales , 2006,
Abstract: in cuba , croton argenteus l. is not known as traditional medicinal plant. it belongs to the same genus that c. lechleri , from whose trunk sangre de drago is obtained in the amazonian countries. it has diverse ethnomedical uses to treat health problems, such as diarrhea, wounds, gastroduodenal ulcers, inflammations, pain, insect bites, and viral infections. there are studies on this species; however, no publications have been found on this plant growing in cuba . the objective was to validate, in extracts from c. argenteus , the effects reported for the amazonian plant. two fluid extracts were prepared from aerial parts, without stalks, dried with ethanol 30 % and 80 %. studies of phytochemical screening, analgesia in contortions caused by intraperitoneal acetic acid, and bowel transit with oral activated carbon were conducted in mice. the antiinflammatory effect was studied in the case of cotton-induced granuloma, indomethacin-induced gastric injury, and oral acute toxicity with the model of acute toxic lesions in rats. the administered oral doses of both extracts were 500 and 1000 mg of dry plant material /kg. according to the results, the expected pharmacological effects were not proved. the fluid extract (30 %) wasn't toxic, but preparation using ethanol 80% was. fluids extracts of aerial parts without stalks of c. argenteus lacked activity for the evaluated pharmacological actions.
Tamizaje fitoquímico, actividad analgésica y antiinflamatoria de decocción de Costus pictus D. Don.
Morón Rodríguez,Francisco; Victoria Amador,María del Carmen; Morejón Rodríguez,Zulema; López Barreiro,Marisol; García Hernández,Ana Ibis; Fuentes Fiallo,Víctor; Robineau,Lionel; Campo Epalza,Carlos;
Revista Cubana de Plantas Medicinales , 2008,
Abstract: introduction: costus pictus d.don (mexican reed) is a species for decorative purposes and the decoction of leaves and fresh stems is traditionally used for urinary disorders like infections, lithiasis and renal colic in cuba. objectives: to identify the main groups of secondary metabolites and to validate the analgesic and anti-inflammatory properties of a decoction of fresh leaves and stems from c. pictus. methods: the main groups of secondary metabolites present in the decoction were identified by a phytochemical screening. the decoction was evaluated in pharmacological models of cotton-induced granulomas in rats; 0,75 % acetic acid-induced cramps (0.1 ml/10 g intraperitoneal) and removal of the tail submerged into water at 55 °c in mice; the orally administered doses were 0.5; 1 and 5 g of fresh vegetable material/kg of body weight. results: the decoction disclosed the presence of flavonoids, phenolic compounds, lactonic compounds and coumarins, saponins, and reducing sugars. it significantly reduced the painful response both models, but there was no antinflammatory effect on cotton-induced granuloma. conclusions: the results contributed to validate the traditional use of c. pictus fresh leaves and stems in order to relieve the pain caused by renal diseases.
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