185 results on '"Gil, Victoria"'
Search Results
152. Epigenetics modifications and Subclinical Atherosclerosis in Obstructive Sleep Apnea: The EPIOSA study
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Marin, Jose M, primary, Artal, Jorge, additional, Martin, Teresa, additional, Carrizo, Santiago J, additional, Andres, Marta, additional, Martin-Burriel, Inmaculada, additional, Bolea, Rosa, additional, Sanz, Arianne, additional, Varona, Luis, additional, Godino, Javier, additional, Gallego, Begoña, additional, Garcia-Erce, Jose A, additional, Villar, Isabel, additional, Gil, Victoria, additional, Forner, Marta, additional, Cubero, Jose P, additional, and Ros, Luis, additional
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- 2014
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153. Subclinical Atherosclerosis and Regulatory T Cells in Obstructive Sleep Apnea
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Marin-Oto, Marta, primary, Martin, Teresa, additional, Godino, Javier, additional, Andres, Marta, additional, Gil, Victoria, additional, and Marin, Jose, additional
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- 2014
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154. HIRLAM_INM and ECMWF analyses: comparison of their behaviour in cyclones detection
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Gil, Victoria, Genovés, Ana, Picornell, María Ángeles, Jansà Clar, Agustí, and Navascués, Beatriz
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Databases ,Climatology of cyclones ,HIRLAM model ,Cyclone catalogues ,MEDEX project - Abstract
Comunicación presentada en: 5th Plinius Conference on Mediterranean Storms celebrada del 1 al 3 de octubre de 2003 en Ajaccio, Corsica. One of the specific objectives of the MEDEX Project is the carrying out of a dynamically oriented climatology of cyclones that produce high impact weather in the Mediterranean. With this purpose, two cyclone catalogues, respectively based on HIRLAM_INM and ECMWF operational objective analyses, have been obtained for the last years in the Meteorological Centre of the Balearic Islands of the INM, the former covering the West Mediterranean basin and the latter covering all throughout the Mediterranean. When comparing both cyclone databases in the common area of study some significant differences have been observed, mainly on some areas. In this work these differences are shown and studied and some possible causes are explored. This work has been partially supported by the REN2002-03482/CLI grant.
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- 2003
155. Base de datos de ciclones a partir de análisis objetivos del CEPPM: similitudes y diferencias entre el Mediterráneo occidental y oriental
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Gil, Victoria, Genovés, Ana, Picornell, María Ángeles, and Jansà Clar, Agustí
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Localización ,Ciclogénesis ,Trayectorias ,Ciclones - Abstract
La necesidad de disponer de una climatología dinámica objetiva de ciclones que producen tiempo adverso en el Mediterráneo fue reconocida, desde sus inicios, en el marco del proyecto MEDEX de la OMM. Desde mediados de 1995 en el Centro Meteorológico Territorial en Illes Balears (CMT) del Instituto Nacional de Meteorología (INM) se viene realizando un seguimiento objetivo de los centros ciclónicos que afectan al Mediterráneo occidental. Con el propósito de obtener una base de ciclones consistente, que cubra todo el Mediterráneo, en este trabajo se ha generalizado el algoritmo de detección y seguimiento de ciclones para su aplicación sobre los análisis objetivos globales del Centro Europeo de Predicción a Plazo Medio (CEPPM). Por el momento, solo se han considerado los centros ciclónicos que aparecen en los mapas de superficie (a nivel del mar), sin referencia a su posible estructura tridimensional. Se ha realizado además un primer análisis comparativo entre el Mediterráneo oriental y el occidental de magnitudes como la frecuencia de aparición, localización geográfica, dimensiones y trayectorias de los ciclones.
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- 2002
156. Predictors of obstetric complications in women with heart disease.
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Goya, Maria, Casellas, Manel, Merced, Carme, Pijuan-Domenech, Antonia, Galián, Laura, Dos, Laura, Casaldáliga, Jaume, Subirana, Mayte, Pedrosa, Valle, Rojas, Mireia, Martínez, Cristina, Ferreira, Ignacio, Monts, Montserrat, Gascón, Andrea, Mendoza, Manel, Baró, Francesc, Suy, Anna, Lopez-Gil, Victoria, Manrique, Susana, and Tornos, Pilar
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OBSTETRICAL diagnosis ,CARDIOVASCULAR diseases ,HEART diseases ,NEWBORN infants ,LABOR complications (Obstetrics) ,HEART disease epidemiology ,PERINEUM ,HEART disease complications ,ARTERIES ,CARDIOVASCULAR diseases in pregnancy ,CESAREAN section ,DATABASES ,DELIVERY (Obstetrics) ,FETAL growth retardation ,HEMORRHAGE ,PREMATURE infants ,LONGITUDINAL method ,MULTIVARIATE analysis ,NEONATAL intensive care ,PHYSICS ,PUERPERAL disorders ,RESPIRATORY distress syndrome ,UTERINE contraction ,NEONATAL intensive care units ,UMBILICAL arteries ,ENTEROCOLITIS ,WOUNDS & injuries - Abstract
Objectives: The objective of this study is to evaluate obstetric outcomes in women with heart disease and determine whether current multidisciplinary management approaches adversely affect the mother, the neonate, or both. Also to compare the accuracy of several risk scores (RS) including the modified World Health Organization classification (mWHO) and CARPREG to predict obstetric and neonatal complications and to study the addition value of Uteroplacental-Doppler flow (UDF) parameters to predict obstetric complications.Methods: A prospective cohort study examined outcomes in women with heart disease (HD), the majority of whom had corrective surgery and delivered between January 2007 and March 2012.Results: One hundred and seventy-four patients with 179 pregnancies were included in the study. Obstetric complications, including premature labor, arose in 87 patients (48.6%). Neonatal complications were observed in 11 cases (7%). On multivariate analysis, maternal heart disease was predictive of adverse perinatal events (46 cases, 25.7%) and mode of delivery (Thierry's spatula) of third- or fourth-degree perineal tears (six cases, 3.2%). mWHO classification predicted obstetric complications (p = 0.0001) better than the CARPREG study. Impaired UDF (uterine artery pulsatility index-20 weeks and umbilical artery pulsatility index-32 weeks in HD versus healthy women: 20w 1.12 versus 1.34, p = 0.005; 32w 0.87 versus 1.09, p = 0.008) was associated with adverse obstetric and offspring outcome in the group of HD pregnant women.Conclusions: Nearly 50% of pregnancies were associated with an adverse obstetric outcome, particularly IUGR. mWHO was better at predicting obstetric and neonatal complications that CARPREG in all categories. Furthermore, compromised UDF combined with mWHO improved the prediction of obstetric and offspring complications in this population. [ABSTRACT FROM AUTHOR]- Published
- 2016
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157. Assessment of climate change in Europe from an ensemble of regional climate models by the use of Köppen-Trewartha classification
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Gallardo, Clemente, primary, Gil, Victoria, additional, Hagel, Edit, additional, Tejeda, César, additional, and de Castro, Manuel, additional
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- 2012
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158. Use of functioning-disability and dependency for case-mix and subtyping of schizophrenia
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Ochoa, Susana, primary, Salvador-Carulla, Luis, additional, Villalta-Gil, Victoria, additional, Gibert, Karina, additional, and Haro, Josep Maria, additional
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- 2012
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159. Posterior midline activation during symptom provocation in acute stress disorder: an fMRI study.
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Cwik, Jan C., Sartory, Gudrun, Schürholt, Benjamin, Knuppertz, Helge, Seitz, Rüdiger J., Villalta-Gil, Victoria, Radua, Joaquim, and Amann, Benedikt L.
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ACUTE stress disorder ,POST-traumatic stress disorder ,PROVOCATION tests (Medicine) ,TRAUMATISM ,FUNCTIONAL magnetic resonance imaging ,PSYCHOLOGY - Abstract
Functional imaging studies of patients with post-traumatic stress disorder showed widespread activation of midline cortical areas during symptom provocation, i.e., exposure to trauma-related cues.The present study aimed at investigating neural activation during exposure to trauma-related pictures in patients with acute stress disorder (ASD) shortly after the traumatic event. Nineteen ASD patients and 19 healthy control participantswere presented with individualized pictures of the traumatic event and emotionally neutral control pictures during the acquisition of whole-brain data with a 3-T fMRI scanner. Compared to the control group and to control pictures, ASD patients showed significant activation in midline cortical areas in response to trauma-related pictures including precuneus, cuneus, postcentral gyrus, and pre-supplementary motor area. The results suggest that the trauma-related pictures evoke emotionally salient self-referential processing in ASD patients. [ABSTRACT FROM AUTHOR]
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- 2014
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160. Assessment of climate change in Europe from an ensemble of regional climate models by the use of Köppen-Trewartha classification.
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Gallardo, Clemente, Gil, Victoria, Hagel, Edit, Tejeda, César, and de Castro, Manuel
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ATMOSPHERIC models , *CLIMATOLOGY , *SIMULATION methods & models , *CLIMATE change , *KOPPEN climate classification , *BIOTIC communities - Abstract
ABSTRACT Through the use of the climatic classification of Köppen-Trewartha (K-T), the ability to reproduce the current climate of Europe has been shown for an ensemble of 15 regional climate model simulations nested in six global climate models. Depending on the simulation, between 55.4 and 81.3% of the grid points are in agreement with observations regarding the location of climate types in current climate simulations (1971-2000). In this respect, the result of the ensemble of 15 simulations is better than that of any individual model, with 83.5% of the grid points in agreement with observations. K-T classification has also been used to analyse the projected climate change over the 21st century under the SRES-A1B emissions scenario. It was found that 22.3% of the grid points in the domain change their climate by the period 2021-2050 compared to current climate and 48.1% change by 2061-2090. The climate shifts affecting the biggest extensions are projected in Central Europe and Fennoscandia, but other smaller areas suffer more intense changes which potentially are more dangerous to vegetation and ecosystems. Generally, these changes occur at a sustained rate throughout the century, reaching speeds of up to 90 × 103 km2 decade−1 in the retreat or expansion of some climates. [ABSTRACT FROM AUTHOR]
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- 2013
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161. High Spatial Resolution Assessment of the Effect of the Spanish National Air Pollution Control Programme on Street-Level NO 2 Concentrations in Three Neighborhoods of Madrid (Spain) Using Mesoscale and CFD Modelling.
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Santiago, Jose-Luis, Sanchez, Beatriz, Rivas, Esther, Vivanco, Marta G., Theobald, Mark Richard, Garrido, Juan Luis, Gil, Victoria, Martilli, Alberto, Rodríguez-Sánchez, Alejandro, Buccolieri, Riccardo, and Martín, Fernando
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AIR pollution control ,SPATIAL resolution ,NEIGHBORHOODS ,AIR pollution ,AIR quality ,AIR pollutants ,BUILT environment - Abstract
Current European legislation aims to reduce the air pollutants emitted by European countries in the coming years. In this context, this article studies the effects on air quality of the measures considered for 2030 in the Spanish National Air Pollution Control Programme (NAPCP). Three different emission scenarios are investigated: a scenario with the emissions in 2016 and two other scenarios, one with existing measures in the current legislation (WEM2030) and another one considering the additional measures of NAPCP (WAM2030). Previous studies have addressed this issue at a national level, but this study assesses the impact at the street scale in three neighborhoods in Madrid, Spain. NO
2 concentrations are modelled at high spatial resolution by means of a methodology based on computational fluid dynamic (CFD) simulations driven by mesoscale meteorological and air quality modelling. Spatial averages of annual mean NO2 concentrations are only estimated to be below 40 µg/m3 in all three neighborhoods for the WAM2030 emission scenarios. However, for two of the three neighborhoods, there are still zones (4–12% of the study areas) where the annual concentration is higher than 40 µg/m3 . This highlights the importance of considering microscale simulations to assess the impacts of emission reduction measures on urban air quality. [ABSTRACT FROM AUTHOR]- Published
- 2022
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162. Benefit Analysis of the 1st Spaish Air Pollution Control Programme on Health Impacts and Associated Externalities.
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Gamarra, Ana R., Lechón, Yolanda, Vivanco, Marta G., Garrido, Juan Luis, Martín, Fernando, Sánchez, Eugenio, Theobald, Mark Richard, Gil, Victoria, and Santiago, José Luis
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AIR pollution control ,HEALTH programs ,PARTICULATE matter ,AIR quality ,EXTERNALITIES ,NITROGEN dioxide - Abstract
This paper aims to provide scientific support for decision-making in the field of improving air quality by evaluating pollution reduction measures included in the current Spanish policy framework of the 1st National Air Pollution Control Programme (NAPCP). First, the health impacts of air quality are estimated by using the concentrations estimated by multiscale air quality modeling and the recommended concentration–response functions (CRF), specifically as a result of exposure to particulate matter (PM), nitrogen dioxide (NO
2 ), and ozone (O3 ). Second, the associated external costs are calculated by monetization techniques. Two scenarios are analyzed: a package including existing measures (WM2030) and a package with additional measures (WAM2030). Compared with the baseline scenario, an improvement was found in the health effects of NO2 , PM10 , and PM2.5 , while for O3 there was a slight worsening, mainly due to the increase in the O3 metric used (SOMO35), which increases over some urban areas. Despite this, the monetary valuation of the total effects on health as a whole shows external benefits due to the adoption of measures (WM2030), compared with the reference scenario (no measures) of more than € 17.5 billion and, when considering the additional measures (WAM2030), benefits of about € 58.1 billion. [ABSTRACT FROM AUTHOR]- Published
- 2021
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163. Memorias
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Gil Victoria, Luis Hernando
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62 Ingeniería y operaciones afines / Engineering ,Ingeniería sanitaria ,Enseñanza universitaria - Published
- 1975
164. Capítulo |13| - Esquizofrenia
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Penadés Rubio, Rafael, Villalta Gil, Victoria, Farriols Herrando, Núria, Palma Sevillano, Carol, and Salavera Bordás, Carlos
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165. Gestión de la salud ambiental en el departamento de caldas desde la planificacion territorial municipal
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Arboleda Hernández, Verónica, Ocampo López, Olga Lucía, and Salazar Gil, Victoria
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Environmental Management ,Gestión Ambiental ,Salud Ambiental ,Environmental Health ,Planeación Urbana ,Spatial Planning ,Ordenación Territorial ,Urban Planning - Abstract
Objetivo: Con esta investigación se lograron identificar las características de la gestión de la salud ambiental en el departamento de Caldas desde la planificación territorial municipal.Metodología: Esta investigación se sitúa en un nivel descriptivo de tipo cualitativo, con algunos análisis cuantitativos. El estudio se ancló al macroproyecto Salud ambiental en cinco departamentos de la región central de Colombia: carga de enfermedad y costos de la atención en salud en algunos municipios del departamento de Caldas. Por esta razón el diseño metodológico recoge los resultados para todos los municipios del departamento de Caldas de dicho estudio. Resultados: La presente investigación recoge información relacionada con la identificación de componentes basada en los planes de desarrollo de cada municipio del departamento de Caldas; además de identificar actores y programas y proyectos, basados en información secundaria; adicionalmente, los resultados de esta investigación han permitido estructurar una propuesta de proyecto, donde el actor mas importante es la comunidad, en búsqueda del empoderamiento en la solución de sus problemáticas en lo relacionado con la salud ambiental, teniendo en cuenta la coyuntura en tema de salubridad, por la cual se atraviesa a nivel mundial. Conclusiones: Los componentes de la salud ambiental nos permiten diferenciar las debilidades y fortalezas de cada territorio, dejando en evidencia lo diverso del departamento de Caldas, la posibilidad de desarrollar los procesos de construcción y ejecución de planes, programas y proyectos, se afianza con la creación o uso de espacios y/o instancias existentes para la concertación intersectorial (Comités Territoriales de Salud Ambiental - COTSA); además se evidencian y fortalecen los actores principales Objective: With this research, it was possible to identify the characteristics of environmental health management in the department of Caldas from the municipal territorial planning. Methodology: This research is situated at a qualitative descriptive level, with some quantitative analyzes. The study was anchored to the macro-project Environmental health in five departments of the central region of Colombia: burden of disease and costs of health care in some municipalities of the department of Caldas. For this reason, the methodological design collects the results for all municipalities in the department of Caldas from said study. Results: This research collects information related to the identification of components based on the development plans of each municipality in the department of Caldas; in addition to identifying actors and programs and projects, based on secondary information; Additionally, the results of this research have allowed to structure a project proposal, where the most important actor is the community, in search of empowerment in solving its problems in relation to environmental health, taking into account the situation in terms of health, which is experienced worldwide. Conclusion: The components of environmental health allow us to differentiate the weaknesses and strengths of each territory, revealing the diversity of the department of Caldas, the possibility of developing the processes of construction and execution of plans, programs and projects, is strengthened with the creation or use of existing spaces and / or instances for intersectoral agreement (Territorial Committees for Environmental Health - COTSA); in addition, the main actors are evidenced and strengthened
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- 2021
166. Autores
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Aliaga, Álvaro, Aramburu Alegret, Inés, de Azpiazu Artigas, Pilar, Barroso Riba, José, Bartrés Faz, David, Bernabeu Guitart, Montserrat, Bruna Rabassa, Olga, Christensen, Anne-Lise, Ciudad Mas, M.ª José, Clare, Linda, Correia Delgado, Rut, Crusat Basté, Mònica, Cucurella Fabregat, Eulàlia, Cuevas Pérez, Raquel, Cullell Gómez, Noemí, Curcoll Gallemí, M.ª Luisa, Dergham, Anna, Enseñat Cantallops, Antònia, Facal Mayo, David, Farriols Herrando, Núria, Fernández Gamarra, Elena, Fernández Guinea, Sara, García-Molina, Alberto, Garzón Ruiz, Belén, Giné Giné, Climent, Gómez Pulido, Almudena, González Marqués, Javier, Gramunt Fombuena, Nina, Jarne Esparcia, Adolfo, Juncadella Puig, Montserrat, Juncos-Rabadán, Onésimo, Junqué Plaja, Carme, Macias Castellví, Cristina, Martinell Gispert-Saúch, Montserrat, Mataró Serrat, Maria, Mimentza, Naiara, Moliné Jorge, Raquel, Moreno Bellido, Francisco, Nello Figa, Antoni, Nieto Barco, Antonieta, Olivares Pérez, Teresa, Palma Sevillano, Carol, Paúl Lapedriza, Núria, Pelegrín Valero, Carmelo, Penadés Rubio, Rafael, Pèrdrix Solàs, Dúnia, Xosé Pereiro, Arturo, Pérez Testor, Carles, Picó Azanza, Natàlia, Porcel Carbonell, Joana, Puyuelo Sanclemente, Miguel, Ignacio Quemada, José, Ríos Lago, Marcos, Rodríguez Rajo, Pablo, Roig Fusté, Josep M.ª, Roig Rovira, Teresa, Rovira Cairó, Anna, Roy Millán, Pedro, Ruano Hernández, Ángel, Salavera Bordás, Carlos, Sánchez-Carrión, Rocío, Signo Miguel, Sara, Subirana Mirete, Judit, Tirapu Ustárroz, Javier, Vila Miravent, Josep, Villalta Gil, Victoria, Wilson, Barbara A., and Zarzuela Marinero, José Antonio
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167. Objective climatology of cyclones in the Mediterranean region: a consensus view among methods with different system identification and tracking criteria
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Uwe Ulbrich, Katrin M. Nissen, Isabel F. Trigo, Joaquim G. Pinto, Marco Reale, Margarida L. R. Liberato, Christoph C. Raible, Annalisa Tanzarella, Victoria Gil, Piero Lionello, Sven Ulbrich, Ricardo M. Trigo, Lionello, Piero, Trigo, Isabel F., Gil, Victoria, Liberato, Margarida L. R., Nissen, Katrin M., Pinto, Joaquim G., Raible, Christoph C., Reale, Marco, Tanzarella, Annalisa, Trigo, Ricardo M., Ulbrich, Sven, and Ulbrich, Uwe
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Mediterranean climate ,Atmospheric Science ,010504 meteorology & atmospheric sciences ,530 Physics ,Cyclogenesi ,0211 other engineering and technologies ,02 engineering and technology ,lcsh:QC851-999 ,Automatic tracking method ,Oceanography ,01 natural sciences ,Mediterranean Basin ,automatic tracking methods ,lcsh:Oceanography ,Meteorology ,Tracks ,Cyclogenesis ,medicine ,cyclones ,lcsh:GC1-1581 ,Mediterranean region ,550 Earth sciences & geology ,mediterranean region, cyclones, automatic tracking methods, tracks, cyclogenesis ,0105 earth and related environmental sciences ,Shore ,021110 strategic, defence & security studies ,geography ,geography.geographical_feature_category ,Seasonality ,tracks ,Annual cycle ,medicine.disease ,Cyclone ,13. Climate action ,Climatology ,Environmental science ,lcsh:Meteorology. Climatology ,Storm track ,cyclogenesis - Abstract
he Mediterranean storm track constitutes a well-defined branch of the North Hemisphere storm track and is characterised by small but intense features and frequent cyclogenesis. The goal of this study is to assess the level of consensus among cyclone detection and tracking methods (CDTMs), to identify robust features and to explore sources of disagreement. A set of 14 CDTMs has been applied for computing the climatology of cyclones crossing the Mediterranean region using the ERA-Interim dataset for the period 1979–2008 as common testbed. Results show large differences in actual cyclone numbers identified by different methods, but a good level of consensus on the interpretation of results regarding location, annual cycle and trends of cyclone tracks. Cyclogenesis areas such as the north-western Mediterranean, North Africa, north shore of the Levantine basin, as well as the seasonality of their maxima are robust features on which methods show a substantial agreement. Differences among methods are greatly reduced if cyclone numbers are transformed to a dimensionless index, which, in spite of disagreement on mean values and interannual variances of cyclone numbers, reveals a consensus on variability, sign and significance of trends. Further, excluding ‘weak’ and ‘slow’ cyclones from the computation of cyclone statistics improves the agreement among CDTMs. Results show significant negative trends of cyclone frequency in spring and positive trends in summer, whose contrasting effects compensate each other at annual scale, so that there is no significant long-term trend in total cyclone numbers in the Mediterranean basin in the 1979–2008 period. Keywords: Mediterranean region, cyclones, automatic tracking methods, tracks, cyclogenesis (Published: 20 May 2016) Citation: Tellus A 2016, 68, 29391, http://dx.doi.org/10.3402/tellusa.v68.29391
- Published
- 2016
168. Activation of brown adipose tissue by a low-protein diet ameliorates hyperglycemia in a diabetic lipodystrophy mouse model.
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Munoz M, Zamudio A, McCann M, Gil V, Xu P, and Liew CW
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Long-term ad libitum dietary restrictions, such as low-protein diets (LPDs), improve metabolic health and extend the life span of mice and humans. However, most studies conducted thus far have focused on the preventive effects of LPDs on metabolic syndromes. To test the therapeutic potential of LPD, we treated a lipodystrophy mouse model IR
FKO (adipose-specific insulin receptor knockout) in this study. We have previously shown that IRFKO mice have profound insulin resistance, hyperglycemia, and whitenng of interscapular brown adipose tissue (BAT), closely mimicking the phenotypes in lipoatrophic diabetic patients. Here, we demonstrate that 14-day of LPD (5.1% kcal from protein) feeding is sufficient to reduce postprandial blood glucose, improve insulin resistance, and normalize glucose tolerance in the IRFKO mice. This profound metabolic improvement is associated with BAT activation and increase in whole body energy expenditure. To confirm, we showed that surgical denervation of BAT attenuated the beneficial metabolic effects of LPD feeding in IRFKO mice, including the 'browning' effects on BAT and the glucose-ameliorating results. However, BAT denervation failed to affect the body weight-lowering effects of LPD. Together, our results imply a therapeutic potential to use LPD for the treatment of lipoatrophic diabetes.- Published
- 2023
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169. Clinician- and Patient-reported Endpoints in CNS Orphan Drug Clinical Trials: ISCTM Position Paper on Best Practices for Endpoint Selection, Validation, Training, and Standardization.
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Busner J, Pandina G, Domingo S, Berger AK, Acosta MT, Fisseha N, Horrigan J, Ivkovic J, Jacobson W, Revicki D, and Villalta-Gil V
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Objective: The International Society of CNS Clinical Trials Methodology (ISCTM) Working Group on Rare Disease/Orphan Drug Development is dedicated to improving and streamlining trials to best develop new treatments for rare diseases. The rarity of these disorders requires a drug development strategy that differs from those of nonrare conditions. Rare disease drug development programs are challenged with small sample sizes, heterogeneous clinical presentations, and few, if any, off-the-shelf endpoints. When disease-specific clinical endpoints exist, they might not be validated and are typically not well known or broadly used in clinical practice. This paper aims to provide an overview of the special issues surrounding endpoints in rare disease drug development, with guidance, practical applications, and discussion., Discussion: The paper covers regulatory considerations in endpoint selection; identification of relevant measurement domains; methods of quantifying clinical meaningfulness; incorporation of patient- and clinician-reported outcomes; considerations for global clinician- and patient-rated clinical assessments; cognition assessment challenges in rare diseases; translation considerations; training, standardization, and calibration of assessors; and endpoint quality assurance. Additionally, it provides guidance and resources for those involved in drug development for rare diseases., Conclusion: In keeping with the mission of ISCTM and the rare disease/orphan drug development working group, this article is designed to encourage thoughtful consideration and provide insight and guidance to promote and further efforts in in central nervous system (CNS) rare disease drug development efforts., Competing Interests: DISCLOSURES: Dr. Busner is a full-time employee of Signant Health and may hold stock and/or stock options. Dr. Pandina is a full-time employee of Janssen Research & Development, LLC and a stockholder of Johnson & Johnson. Dr. Fisseha is an employee of AbbVie and may hold stock and/or stock options. Dr. Horrigan is an employee of AMO Pharma Ltd. Dr. Jacobson is an employee of Harmony Biosciences., (Copyright © 2021. Matrix Medical Communications. All rights reserved.)
- Published
- 2021
170. Adipose expression of CREB3L3 modulates body weight during obesity.
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McCann MA, Li Y, Muñoz M, Gil V, Qiang G, Cordoba-Chacon J, Blüher M, Duncan S, and Liew CW
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- Adolescent, Adult, Aged, Aged, 80 and over, Animals, Female, Humans, Male, Mice, Mice, Inbred C57BL, Mice, Knockout, Mice, Obese, Middle Aged, Young Adult, Cyclic AMP Response Element-Binding Protein metabolism, Cyclic AMP Response Element-Binding Protein pharmacology, Obesity drug therapy, Obesity metabolism, Subcutaneous Fat drug effects, Subcutaneous Fat metabolism
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We found the hepatic transcription factor Cyclic-AMP Responsive Element Binding Protein 3-like-3 (CREB3L3) to be expressed in adipose tissue, and selectively downregulated in the more metabolically protective subcutaneous adipose tissue in obese mice and humans. We sought to elucidate the specific role of this factor in adipose biology. CREB3L3 fat-specific knockout mice were fed a high-fat diet to induce obesity and metabolic dysfunction. Additionally, we injected a flip-excision adeno-associated virus directly into the subcutaneous inguinal adipose tissue of Adiponectin-Cre mice to create a depot-specific overexpression model for further assessment. Fat-specific ablation of CREB3L3 enhanced weight gain and insulin resistance following high-fat feeding, as fat-specific knockout mice expended less energy and possessed more inflammatory adipose tissue. Conversely, inguinal fat CREB3L3 overexpression deterred diet-induced obesity and ameliorated metabolic dysfunction. Together, this study highlights the relevance of CREB3L3 in obese adipose tissue and demonstrates its role as a powerful body weight modulator., (© 2021. The Author(s).)
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- 2021
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171. Loss of ephrin B2 receptor (EPHB2) sets lipid rheostat by regulating proteins DGAT1 and ATGL inducing lipid droplet storage in prostate cancer cells.
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Morales A, Greenberg M, Nardi F, Gil V, Hayward SW, Crawford SE, and Franco OE
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- Cell Line, Tumor, Humans, Lipid Metabolism physiology, Male, Diacylglycerol O-Acyltransferase metabolism, Lipase metabolism, Lipid Droplets metabolism, Prostatic Neoplasms metabolism, Receptor, EphB2 genetics, Receptor, EphB2 metabolism
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Lipid droplet (LD) accumulation in cancer results from aberrant metabolic reprograming due to increased lipid uptake, diminished lipolysis and/or de novo lipid synthesis. Initially implicated in storage and lipid trafficking in adipocytes, LDs are more recently recognized to fuel key functions associated with carcinogenesis and progression of several cancers, including prostate cancer (PCa). However, the mechanisms controlling LD accumulation in cancer are largely unknown. EPHB2, a tyrosine kinase (TKR) ephrin receptor has been proposed to have tumor suppressor functions in PCa, although the mechanisms responsible for these effects are unclear. Given that dysregulation in TRK signaling can result in glutaminolysis we postulated that EPHB2 might have potential effects on lipid metabolism. Knockdown strategies for EPHB2 were performed in prostate cancer cells to analyze the impact on the net lipid balance, proliferation, triacylglycerol-regulating proteins, effect on LD biogenesis, and intracellular localization of LDs. We found that EPHB2 protein expression in a panel of human-derived prostate cancer cell lines was inversely associated with in vivo cell aggressiveness. EPHB2 silencing increased the proliferation of prostate cancer cells and concurrently induced de novo LD accumulation in both cytoplasmic and nuclear compartments as well as a "shift" on LD size distribution in newly formed lipid-rich organelles. Lipid challenge using oleic acid exacerbated the effects on the LD phenotype. Loss of EPHB2 directly regulated key proteins involved in maintaining lipid homeostasis including, increasing lipogenic DGAT1, DGAT2 and PLIN2 and decreasing lipolytic ATGL and PEDF. A DGAT1-specific inhibitor abrogated LD accumulation and proliferative effects induced by EPHB2 loss. In conclusion, we highlight a new anti-tumor function of EPHB2 in lipid metabolism through regulation of DGAT1 and ATGL in prostate cancer. Blockade of DGAT1 in EPHB2-deficient tumors appears to be effective in restoring the lipid balance and reducing tumor growth.
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- 2021
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172. Design and implementation of a massive open online course on enhancing the recruitment of minorities in clinical trials - Faster Together.
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Kusnoor SV, Villalta-Gil V, Michaels M, Joosten Y, Israel TL, Epelbaum MI, Lee P, Frakes ET, Cunningham-Erves J, Mayers SA, Stallings SC, Giuse NB, Harris PA, and Wilkins CH
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- Clinical Trials as Topic, Ethnicity, Humans, Minority Groups, Pilot Projects, Research Personnel, Education, Distance
- Abstract
Background: Racial and ethnic minorities are often underrepresented in clinical trials, threatening the generalizability of trial results. Several factors may contribute to underrepresentation of minorities in clinical trials, including lack of training for researchers and staff on the importance of diversity in clinical trials and effective strategies for recruiting and retaining minority populations., Methods: Applying community engaged research principles, we developed a massive open online course (MOOC) to help research team members develop knowledge and skills to enhance the recruitment of minorities in clinical trials. A transdisciplinary working group, consisting of clinical researchers, community engagement specialists, minority clinical trial recruitment and retention educators and specialists, and knowledge management information scientists, was formed to develop an evidence-based curriculum. Feedback from the Recruitment Innovation Center Community Advisory Board was incorporated to help finalize the curriculum. The course was implemented in Coursera, an online learning platform offering MOOCs. A bootstrap paired sample t-test was used to compare pre- and post-assessments of knowledge, attitudes, and intentions as it relates to minority recruitment., Results: The final course, entitled Faster Together, was divided into eight 1-h modules. Each module included video presentations, reading assignments, and quizzes. After 10 months, 382 individuals enrolled in the course, 105 participants completed the pre-test, and 14 participants completed the post-test. Participants' knowledge scores were higher with an increase in the mean number of correct answers from 15.4 (95% CI:12.1-18.7) on the pre-test to 18.7 (95% CI:17.42-20.2) on the post-test. All post-test respondents (n = 14) indicated that the course improved their professional knowledge, and 71.4% of respondents indicated that they were very likely to make changes to their recruitment practices., Conclusions: Faster Together, a massive open online course, is an acceptable, accessible approach to educating research teams on minority recruitment in clinical trials. Preliminary evidence indicates the course increased knowledge on how to recruit minorities into clinical trials and could promote change in their recruitment practices.
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- 2021
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173. Engaging the community through a longitudinal, interprofessional, interinstitutional experiential learning collaboration.
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Gentry C, Espiritu E, Schorn MN, Hallmark B, Bryan M, Prather P, Villalta-Gil V, Offodile R, and Wilkins C
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- Attitude of Health Personnel, Health Personnel, Humans, Universities, Education, Professional, Interprofessional Relations, Problem-Based Learning
- Abstract
Background Interprofessional education (IPE) and training in community settings is not commonly described in the literature. Studies primarily focus on clinical education of interprofessional teams in clinical practice and primary care. This is a description of a longitudinal, collaborative interinstitutional IPE project that engages community partners (CP) while delivering core IPE competencies. Interprofessional Education Activity: Twenty-seven students from five universities representing ten healthcare academic programs participated in the project. Participating CP were non-profit agencies developed to meet the needs of specific vulnerable, underserved populations. Students were divided into teams and then paired with CP. This was a six-month project, with students committing to 30 hours over two semesters. At the end of the project, students presented project deliverables to CP, faculty collaborative and other students. Interprofessional education collaborative (IPEC) domains were qualitatively assessed and students completed the Interprofessional Socialization and Valuing Scale (ISVS) at the beginning and conclusion of the project. Students provided written reflections at the conclusion of the project. Faculty completed the Team Observed Structured Clinical Encounter (TOSCE). Discussion" Twenty-seven students (100%) students completed the project and twenty-one students (77.8%) completed the evaluation tools. Students demonstrated a statistically significant difference between pre- and post-project ISVS total scores (5.81 +/- 0.64 vs. 6.51 +/- 0.37). Teamwork, communication skills, and increased comfort with those from other professions were common themes in the student reflections. Implications: Community-based IPE provides a venue for healthcare professionals to engage and partner with community organizations. This project demonstrates an effective inter-institutional, interprofessional method of delivering IPE., Competing Interests: Declaration of Competing Interest None., (Copyright © 2020 Elsevier Inc. All rights reserved.)
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- 2021
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174. Reactive psychoses in the context of the COVID-19 pandemic: Clinical perspectives from a case series.
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Valdés-Florido MJ, López-Díaz Á, Palermo-Zeballos FJ, Martínez-Molina I, Martín-Gil VE, Crespo-Facorro B, and Ruiz-Veguilla M
- Abstract
Introduction: The world is currently undergoing an extremely stressful scenario due to the COVID-19 pandemic. This unexpected and dramatic situation could increase the incidence of mental health problems, among them, psychotic disorders. The aim of this paper was to describe a case series of brief reactive psychosis due to the psychological distress from the current coronavirus pandemic., Materials and Methods: We report on a case series including all the patients with reactive psychoses in the context of the COVID-19 crisis who were admitted to the Virgen del Rocío and Virgen Macarena University Hospitals (Seville, Spain) during the first two weeks of compulsory nationwide quarantine., Results: In that short period, four patients met the Diagnostic and Statistical Manual of Mental Disorders (DSM-5) criteria for a brief reactive psychotic disorder. All of the episodes were directly triggered by stress derived from the COVID-19 pandemic and half of the patients presented severe suicidal behavior at admission., Conclusions: We may now be witnessing an increasing number of brief reactive psychotic disorders as a result of the COVID-19 pandemic. This type of psychosis has a high risk of suicidal behavior and, although short-lived, has a high rate of psychotic recurrence and low diagnostic stability over time. Therefore, we advocate close monitoring in both the acute phase and long-term follow-up of these patients., (© 2020 SEP y SEPB. Published by Elsevier España, S.L.U. All rights reserved.)
- Published
- 2020
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175. Measuring the hierarchical general factor model of psychopathology in young adults.
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Lahey BB, Zald DH, Perkins SF, Villalta-Gil V, Werts KB, Van Hulle CA, Rathouz PJ, Applegate B, Class QA, Poore HE, Watts AL, and Waldman ID
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- Adult, Cohort Studies, Female, Humans, Male, Young Adult, Factor Analysis, Statistical, Mental Disorders classification, Mental Disorders physiopathology, Models, Statistical
- Abstract
There is evidence that models of psychopathology specifying a general factor and specific second-order factors fit better than competing structural models. Nonetheless, additional tests are needed to examine the generality and boundaries of the general factor model. In a selected second wave of a cohort study, first-order dimensions of psychopathology symptoms in 499 23- to 31-year-old twins were analyzed. Using confirmatory factor analysis, a bifactor model specifying a general factor and specific internalizing and externalizing factors fit better than competing models. Factor loadings in this model were sex invariant despite greater variances in the specific internalizing factor among females and greater variances in the general and specific externalizing factors among males. The bifactor structure was robust to the exclusion of any single first-order dimension of psychopathology. Furthermore, the results were essentially unchanged when all overlapping symptoms that define multiple disorders were excluded from symptom dimensions. Furthermore, the best-fitting bifactor model also emerged in exploratory structural equation modeling with freely estimated cross-loadings. The general factor of psychopathology was robust across variations in measurement and analysis., (Copyright © 2017 John Wiley & Sons, Ltd.)
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- 2018
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176. Exact Topological Inference for Paired Brain Networks via Persistent Homology.
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Chung MK, Vilalta-Gil V, Lee H, Rathouz PJ, Lahey BB, and Zald DH
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- Brain, Humans, Image Enhancement, Pattern Recognition, Automated, Reproducibility of Results, Sensitivity and Specificity, Algorithms, Brain Mapping, Image Interpretation, Computer-Assisted
- Abstract
We present a novel framework for characterizing paired brain networks using techniques in hyper-networks, sparse learning and persistent homology. The framework is general enough for dealing with any type of paired images such as twins, multimodal and longitudinal images. The exact nonparametric statistical inference procedure is derived on testing monotonic graph theory features that do not rely on time consuming permutation tests. The proposed method computes the exact probability in quadratic time while the permutation tests require exponential time. As illustrations, we apply the method to simulated networks and a twin fMRI study. In case of the latter, we determine the statistical significance of the heritability index of the large-scale reward network where every voxel is a network node.
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- 2017
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177. Convergent individual differences in visual cortices, but not the amygdala across standard amygdalar fMRI probe tasks.
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Villalta-Gil V, Hinton KE, Landman BA, Yvernault BC, Perkins SF, Katsantonis AS, Sellani CL, Lahey BB, and Zald DH
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- Adult, Brain Mapping, Facial Expression, Facial Recognition, Female, Humans, Magnetic Resonance Imaging, Male, Photic Stimulation, Young Adult, Affect physiology, Amygdala physiology, Individuality, Visual Cortex physiology
- Abstract
The amygdala (AMG) has been repeatedly implicated in the processing of threatening and negatively valenced stimuli and multiple fMRI paradigms have reported personality, genetic, and psychopathological associations with individual differences in AMG activation in these paradigms. Yet the interchangeability of activations in these probes has not been established, thus it remains unclear if we can interpret AMG responses on specific tasks as general markers of its reactivity. In this study we aimed to assess if different tasks that have been widely used within the Affective Neuroscience literature consistently recruit the AMG., Method: Thirty-two young healthy subjects completed four fMRI tasks that have all been previously shown to probe the AMG during processing of threatening stimuli: the Threat Face Matching (TFM), the Cued Aversive Picture (CAP), the Aversive and Erotica Pictures (AEP) and the Screaming Lady paradigm (SLp) tasks. Contrasts testing response to aversive stimuli relative to baseline or neutral stimuli were generated and correlations between activations in the AMG were calculated across tasks were performed for ROIs of the AMG., Results: The TFM, CAP and AEP, but not the SLp, successfully recruit the AMG, among other brain regions, especially when contrasts were against baseline or nonsocial stimuli. Conjunction analysis across contrasts showed that visual cortices (VisCtx) were also consistently recruited. Correlation analysis between the extracted data for right and left AMG did not yield significant associations across tasks. By contrast, the extracted signal in VisCtx showed significant associations across tasks (range r=0.511-r=0.630)., Conclusions: Three of the four paradigms revealed significant AMG reactivity, but individual differences in the magnitudes of AMG reactivity were not correlated across paradigms. By contrast, VisCtx activation appears to be a better candidate than the AMG as a measure of individual differences with convergent validity across negative emotion processing paradigms., (Copyright © 2016 Elsevier Inc. All rights reserved.)
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- 2017
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178. Specificity proteins 1 and 4, hippocampal volume and first-episode psychosis.
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Fusté M, Meléndez-Pérez I, Villalta-Gil V, Pinacho R, Villalmanzo N, Cardoner N, Menchón JM, Haro JM, Soriano-Mas C, and Ramos B
- Subjects
- Hippocampus diagnostic imaging, Humans, Leukocytes, Mononuclear, Magnetic Resonance Imaging, Psychotic Disorders diagnostic imaging, Hippocampus pathology, Psychotic Disorders blood, Psychotic Disorders pathology, Sp1 Transcription Factor blood, Sp4 Transcription Factor blood
- Abstract
We assessed specificity protein 1 (SP1) and 4 (SP4) transcription factor levels in peripheral blood mononuclear cells and conducted a voxel-based morphometry analysis on brain structural magnetic resonance images from 11 patients with first-episode psychosis and 14 healthy controls. We found lower SP1 and SP4 levels in patients, which correlated positively with right hippocampal volume. These results extend previous evidence showing that such transcription factors may constitute a molecular pathway to the development of psychosis., (© The Royal College of Psychiatrists 2016.)
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- 2016
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179. Lipodystrophy and severe metabolic dysfunction in mice with adipose tissue-specific insulin receptor ablation.
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Qiang G, Whang Kong H, Xu S, Pham HA, Parlee SD, Burr AA, Gil V, Pang J, Hughes A, Gu X, Fantuzzi G, MacDougald OA, and Liew CW
- Abstract
Objective: Insulin signaling plays pivotal roles in the development and metabolism of many tissues and cell types. A previous study demonstrated that ablation of insulin receptor (IR) with aP2-Cre markedly reduced adipose tissues mass and protected mice from obesity. However, multiple studies have demonstrated widespread non-adipocyte recombination of floxed alleles in aP2-Cre mice. These findings underscore the need to re-evaluate the role of IR in adipocyte and systemic metabolism with a more adipose tissue-specific Cre mouse line., Methods: We generated and phenotyped a new adipose tissue-specific IR mouse model using the adipose tissue-specific Adipoq-Cre line., Results: Here we show that the Adipoq-Cre-mediated IR KO in mice leads to lipodystrophy and metabolic dysfunction, which is in stark contrast to the previous study. In contrast to white adipocytes, absence of insulin signaling does not affect development of marrow and brown adipocytes, but instead is required for lipid accumulation particularly for the marrow adipocytes. Lipodystrophic IR KO mice have profound insulin resistance, hyperglycemia, organomegaly, and impaired adipokine secretion., Conclusions: Our results demonstrate differential roles for insulin signaling for white, brown, and marrow adipocyte development and metabolic regulation.
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- 2016
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180. Validation of the Communication Skills Questionnaire (CSQ) in people with schizophrenia.
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Prat G, Casas-Anguera E, Garcia-Franco M, Escandell MJ, Martin JR, Vilamala S, Villalta-Gil V, Gimenez-Salinas J, Hernández-Rambla C, and Ochoa S
- Subjects
- Adult, Female, Humans, Male, Middle Aged, Psychometrics, Reproducibility of Results, Communication, Psychiatric Status Rating Scales statistics & numerical data, Schizophrenia rehabilitation, Surveys and Questionnaires standards
- Abstract
This present study describes the validation of the Communication Skills Questionnaire (CSQ) in people with schizophrenia. A total of 125 clinically stable people in rehabilitation treatment who were diagnosed with schizophrenia were included. For convergent and discriminant validity the following tests were administered; the Gambrill and Richie (GR) Assertiveness Inventory, the Social Functioning Scale (SFS), Life Skills Profile (LSP), Clinical Global Impression scale for schizophrenia (CGI-S) and the Global Assessment of Functioning (GAF) scale. Internal consistency of the CSQ had a Cronbach׳s alpha of 0.96. Test-retest reliability showed coefficients between 0.60 and 0.70. Convergent validity showed significant relations at p<0.0001 for all instruments assessed. None of the subscales used for assessing discriminant validity showed a significant correlation with the CSQ except for the CGI-S depression subscale. The instrument shows good psychometric properties and demonstrates that it is a useful instrument for evaluating communication skills in people with schizophrenia., (Copyright © 2014 Elsevier Ireland Ltd. All rights reserved.)
- Published
- 2014
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181. Three-factor model of premorbid adjustment in a sample with chronic schizophrenia and first-episode psychosis.
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Barajas A, Usall J, Baños I, Dolz M, Villalta-Gil V, Vilaplana M, Autonell J, Sánchez B, Cervilla JA, Foix A, Obiols JE, Haro JM, and Ochoa S
- Subjects
- Adolescent, Age Factors, Child, Chronic Disease, Factor Analysis, Statistical, Female, Humans, Male, Neuropsychological Tests, Principal Component Analysis, Statistics as Topic, Surveys and Questionnaires, Adaptation, Psychological, Psychotic Disorders psychology, Schizophrenia, Schizophrenic Psychology, Social Adjustment
- Abstract
Background: The dimensionality of premorbid adjustment (PA) has been a debated issue, with attempts to determine whether PA is a unitary construct or composed of several independent domains characterized by a differential deterioration pattern and specific outcome correlates., Aims: This study examines the factorial structure of PA, as well as, the course and correlates of its domains., Method: Retrospective study of 84 adult patients experiencing first-episode psychosis (FEP) (n=33) and individuals with schizophrenia (SCH) (n=51). All patients were evaluated with a comprehensive battery of instruments including clinical, functioning and neuropsychological variables. A principal component analysis accompanied by a varimax rotation method was used to examine the factor structure of the PAS-S scale. Paired t tests and Wilcoxon rank tests were used to assess the changes in PAS domains over time. Bivariate correlation analyses were performed to analyse the relationship between PAS factors and clinical, social and cognitive variables., Results: PA was better explained by three factors (71.65% of the variance): Academic PA, Social PA and Socio-sexual PA. The academic domain showed higher scores of PA from childhood. Social and clinical variables were more strongly related to Social PA and Socio-sexual PA domains, and the Academic PA domain was exclusively associated with cognitive variables., Conclusion: This study supports previous evidence, emphasizing the validity of dividing PA into its sub-components. A differential deterioration pattern and specific correlates were observed in each PA domains, suggesting that impairments in each PA domain might predispose individuals to develop different expressions of psychotic dimensions., (© 2013.)
- Published
- 2013
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182. Reduced expression of SP1 and SP4 transcription factors in peripheral blood mononuclear cells in first-episode psychosis.
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Fusté M, Pinacho R, Meléndez-Pérez I, Villalmanzo N, Villalta-Gil V, Haro JM, and Ramos B
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- Adult, Female, Humans, Male, Psychiatric Status Rating Scales, Sp1 Transcription Factor genetics, Sp4 Transcription Factor genetics, Young Adult, Gene Expression Regulation physiology, Leukocytes, Mononuclear metabolism, Psychotic Disorders metabolism, Sp1 Transcription Factor metabolism, Sp4 Transcription Factor metabolism
- Abstract
Alterations of transcription factor specificity protein 4 (SP4) and 1 (SP1) have been linked to different neuropsychiatric diseases. Reduced SP4 and SP1 protein levels in the prefrontal cortex have been associated with bipolar disorder and schizophrenia, respectively, suggesting that both factors could be involved in the pathogenesis of disorders with psychotic features. The aim of this study was to investigate whether the reduction of SP1, SP4 and SP3 protein and mRNA expression in peripheral blood mononuclear cells in the early stages of psychosis may act as a potential biomarker of these disorders. A cross-sectional study of first-episode psychosis patients (n = 14) compared to gender- and age-matched healthy controls (n = 14) was designed. Patients were recruited through the adult mental health services of Parc Sanitari Sant Joan de Déu. Protein and gene expression levels of SP1, SP4 and SP3 were assessed in peripheral blood mononuclear cells of patients with first-episode psychosis and healthy control subjects. We report that protein levels of SP1 and SP4, but not SP3, are significantly reduced in patients compared to controls. In contrast, we did not observe any differences in expression levels for SP1, SP4 or SP3 genes between patient and control groups. In patients, SP4 protein levels were significantly associated with SP1 protein levels. No association was found, however, between protein and gene expression levels for each factor. Our study shows reduced SP1 and SP4 protein levels in first-episode psychosis in lymphocytes, suggesting that these transcription factors are potential peripheral biomarkers of psychotic spectrum disorders in the early stages., (Copyright © 2013 Elsevier Ltd. All rights reserved.)
- Published
- 2013
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183. Functional similarity of facial emotion processing between people with a first episode of psychosis and healthy subjects.
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Villalta-Gil V, Meléndez-Pérez I, Russell T, Surguladze S, Radua J, Fusté M, Stephan-Otto C, and Haro JM
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- Adult, Aged, Aged, 80 and over, Analysis of Variance, Brain blood supply, Brain pathology, Female, Humans, Image Processing, Computer-Assisted, Linear Models, Magnetic Resonance Imaging, Male, Middle Aged, Oxygen blood, Pattern Recognition, Visual physiology, Photic Stimulation, Psychiatric Status Rating Scales, Emotions physiology, Face, Facial Expression, Psychotic Disorders pathology, Psychotic Disorders physiopathology
- Abstract
Background: Neurofunctional and behavioral abnormalities in facial emotion processing (FEmoP) have been consistently found in schizophrenia patients, but studies assessing brain functioning in early phases are scarce and the variety of experimental paradigms in current literature make comparisons difficult. The present work focuses on assessing FEmoP in people experiencing a psychotic episode for the first time with different experimental paradigm approaches., Methods: Twenty-two patients with a first psychotic episode (FPe) (13 males) took part in a functional magnetic resonance imaging study (1.5T) examining neural responses to explicit and implicit processing of fearful and happy facial expressions presented at two different intensities: 50% and 100%. Their brain activation was compared to that of 31 healthy subjects (15 males)., Results: Control subjects show differential patterns of brain activation regarding the task demands (implicit or explicit processing), the emotional content (happy or fear) and the intensities of the emotion (50% or 100%); such differences are not found in participants with a first psychotic episode (FPe). No interaction or group effects are seen between control and FPe participants with any of the emotional tasks assessed, although FPe subjects show worse behavioral performance., Conclusions: No brain areas recruited for FEmoP emerge as significantly different between people with a FPe and healthy subjects, independently on the demands of the task, the emotion processed, or the intensity of the emotion; but FPe participants show a limited recruitment of differential brain regions that could be associated with poor emotional processing in the short term. Our results outline the need of investigating the underlying processes that lead FPe participants to worse FEmoP performance., (Copyright © 2013 Elsevier B.V. All rights reserved.)
- Published
- 2013
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184. Cognitive correlates of verbal memory and verbal fluency in schizophrenia, and differential effects of various clinical symptoms between male and female patients.
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Brébion G, Villalta-Gil V, Autonell J, Cervilla J, Dolz M, Foix A, Haro JM, Usall J, Vilaplana M, and Ochoa S
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- Adult, Association, Female, Humans, Male, Mental Recall, Middle Aged, Neuropsychological Tests, Psychiatric Status Rating Scales, Regression Analysis, Semantics, Cognition Disorders etiology, Memory Disorders etiology, Schizophrenia complications, Schizophrenic Psychology, Sex Characteristics, Verbal Learning physiology
- Abstract
Background: Impairment of higher cognitive functions in patients with schizophrenia might stem from perturbation of more basic functions, such as processing speed. Various clinical symptoms might affect cognitive efficiency as well. Notably, previous research has revealed the role of affective symptoms on memory performance in this population, and suggested sex-specific effects., Method: We conducted a post-hoc analysis of an extensive neuropsychological study of 88 patients with schizophrenia. Regression analyses were conducted on verbal memory and verbal fluency data to investigate the contribution of semantic organisation and processing speed to performance. The role of negative and affective symptoms and of attention disorders in verbal memory and verbal fluency was investigated separately in male and female patients., Results: Semantic clustering contributed to verbal recall, and a measure of reading speed contributed to verbal recall as well as to phonological and semantic fluency. Negative symptoms affected verbal recall and verbal fluency in the male patients, whereas attention disorders affected these abilities in the female patients. Furthermore, depression affected verbal recall in women, whereas anxiety affected it in men., Conclusions: These results confirm the association of processing speed with cognitive efficiency in patients with schizophrenia. They also confirm the previously observed sex-specific associations of depression and anxiety with memory performance in these patients, and suggest that negative symptoms and attention disorders likewise are related to cognitive efficiency differently in men and women., (Copyright © 2013 Elsevier B.V. All rights reserved.)
- Published
- 2013
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185. Spanish validation of the Premorbid Adjustment Scale (PAS-S).
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Barajas A, Ochoa S, Baños I, Dolz M, Villalta-Gil V, Vilaplana M, Autonell J, Sánchez B, Cervilla JA, Foix A, Obiols JE, Haro JM, and Usall J
- Subjects
- Adolescent, Adult, Female, Humans, Male, Middle Aged, Psychometrics, Retrospective Studies, Surveys and Questionnaires, Psychotic Disorders psychology, Schizophrenic Psychology, Social Adjustment
- Abstract
Background: The Premorbid Adjustment Scale (PAS) has been the most widely used scale to quantify premorbid status in schizophrenia, coming to be regarded as the gold standard of retrospective assessment instruments., Aims: To examine the psychometric properties of the Spanish version of the PAS (PAS-S)., Method: Retrospective study of 140 individuals experiencing a first episode of psychosis (n=77) and individuals who have schizophrenia (n=63), both adult and adolescent patients. Data were collected through a socio-demographic questionnaire and a battery of instruments which includes the following scales: PAS-S, PANSS, LSP, GAF and DAS-sv. The Cronbach's alpha was performed to assess the internal consistency of PAS-S. Pearson's correlations were performed to assess the convergent and discriminant validity., Results: The Cronbach's alpha of the PAS-S scale was 0.85. The correlation between social PAS-S and total PAS-S was 0.85 (p<0.001); while for academic PAS-S and total PAS-S it was 0.53 (p<0.001). Significant correlations were observed between all the scores of each age period evaluated across the PAS-S scale, with a significance value less than 0.001. There was a relationship between negative symptoms and social PAS-S (0.20, p<0.05) and total PAS-S (0.22, p<0.05), but not with academic PAS-S. However, there was a correlation between academic PAS-S and general subscale of the PANSS (0.19, p<0.05). Social PAS-S was related to disability measures (DAS-sv); and academic PAS-S showed discriminant validity with most of the variables of social functioning. PAS-S did not show association with the total LSP scale (discriminant validity)., Conclusion: The Spanish version of the Premorbid Adjustment Scale showed appropriate psychometric properties in patients experiencing a first episode of psychosis and who have a chronic evolution of the illness. Moreover, each domain of the PAS-S (social and academic premorbid functioning) showed a differential relationship to other characteristics such as psychotic symptoms, disability or social functioning after onset of illness., (Copyright © 2013 Elsevier Inc. All rights reserved.)
- Published
- 2013
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