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Featured researches published by Guadalupe Camarero.


The Journal of Neuroscience | 2001

Delayed inner ear maturation and neuronal loss in postnatal Igf-1-deficient mice.

Guadalupe Camarero; Carlos Avendaño; Carmen Fernández-Moreno; Angeles Villar; Julio Contreras; Flora de Pablo; José G. Pichel; Isabel Varela-Nieto

Insulin-like growth factor-1 (IGF-1) has been shown to play a key role during embryonic and postnatal development of the CNS, but its effect on a sensory organ has not been studied in vivo. Therefore, we examined cochlear growth, differentiation, and maturation in Igf-1 gene knock-out mice at postnatal days 5 (P5), P8, and P20 by using stereological methods and immunohistochemistry. Mutant mice showed reduction in size of the cochlea and cochlear ganglion. An immature tectorial membrane and a significant decrease in the number and size of auditory neurons were also evident at P20. IGF-1-deficient cochlear neurons showed increased caspase-3-mediated apoptosis, along with aberrant expression of the early neural markers nestin and Islet 1/2. Cochlear ganglion and fibers innervating the sensory cells of the organ of Corti presented decreased levels of neurofilament and myelin P0 in P20 mouse mutants. In addition, an abnormal synaptophysin expression in the somata of cochlear ganglion neurons and sensory hair cells suggested the persistence of an immature pattern of synapses distribution in the organ of Corti of these animals. These results demonstrate that lack of IGF-1 in mice severely affects postnatal survival, differentiation, and maturation of the cochlear ganglion cells and causes abnormal innervation of the sensory cells in the organ of Corti.


Developmental Biology | 2003

Insulin-like growth factor 1 is required for survival of transit-amplifying neuroblasts and differentiation of otic neurons

Guadalupe Camarero; Yolanda León; Itziar Gorospe; F. de Pablo; Berta Alsina; Fernando Giraldez; Isabel Varela-Nieto

Neurons that connect mechanosensory hair cell receptors to the central nervous system derive from the otic vesicle from where otic neuroblasts delaminate and form the cochleovestibular ganglion (CVG). Local signals interact to promote this process, which is autonomous and intrinsic to the otic vesicle. We have studied the expression and activity of insulin-like growth factor-1 (IGF-1) during the formation of the chick CVG, focusing attention on its role in neurogenesis. IGF-1 and its receptor (IGFR) were detected at the mRNA and protein levels in the otic epithelium and the CVG. The function of IGF-1 was explored in explants of otic vesicle by assessing the formation of the CVG in the presence of anti-IGF-1 antibodies or the receptor competitive antagonist JB1. Interference with IGF-1 activity inhibited CVG formation in growth factor-free media, revealing that endogenous IGF-1 activity is essential for ganglion generation. Analysis of cell proliferation cell death, and expression of the early neuronal antigens Tuj-1, Islet-1/2, and G4 indicated that IGF-1 was required for survival, proliferation, and differentiation of an actively expanding population of otic neuroblasts. IGF-1 blockade, however, did not affect NeuroD within the otic epithelium. Experiments carried out on isolated CVG showed that exogenous IGF-1 induced cell proliferation, neurite outgrowth, and G4 expression. These effects of IGF-1 were blocked by JB1. These findings suggest that IGF-1 is essential for neurogenesis by allowing the expansion of a transit-amplifying neuroblast population and its differentiation into postmitotic neurons. IGF-1 is one of the signals underlying autonomous development of the otic vesicle.


Hearing Research | 2002

Cochlear abnormalities in insulin-like growth factor-1 mouse mutants

Guadalupe Camarero; M.Angeles Villar; Julio Contreras; Carmen Fernández-Moreno; José G. Pichel; Carlos Avendaño; Isabel Varela-Nieto

Insulin-like growth factor 1 (IGF-1) modulates inner ear cell proliferation, differentiation and survival in culture. Its function in human hearing was first evidenced by a report of a boy with a homozygous deletion of the Igf-1 gene, who showed severe sensorineural deafness [Woods et al., New Engl. J. Med. 335 (1996) 1363-1367]. To better understand the in vivo role of IGF-1 during inner ear differentiation and maturation, we studied the cochleae of Igf-1 gene knockout mice by performing morphometric stereological analyses, immunohistochemistry and electron microscopy on postnatal days 5 (P5), P8 and P20. At P20, but not at P5, the volumes of the cochlea and cochlear ganglion were significantly reduced in mutant mice, although the reduction was less severe than whole body dwarfism. A significant decrease in the number and average size of auditory neurons was also evident at P20. IGF-1-deficient cochlear neurons showed increased apoptosis, along with altered expression of neurofilament 200 kDa and vimentin. The eighth nerve, the cochlear ganglion and the fibers innervating the sensory cells of the organ of Corti of the P20 mouse mutants presented increased expression of vimentin, whereas the expression of neurofilament was decreased. In addition, the myelin sheath was severely affected in ganglion neurons. In conclusion, IGF-1 deficit in mice severely affects postnatal survival, differentiation and maturation of the cochlear ganglion cells.


Hearing Research | 2004

Trophic effects of insulin-like growth factor-I (IGF-I) in the inner ear

Isabel Varela-Nieto; José A. Morales-García; Patricia Vigil; Amelia Diaz-Casares; Itziar Gorospe; Susana Sánchez-Galiano; Susana Cañón; Guadalupe Camarero; Julio Contreras; Rafael Cediel; Yolanda León

Insulin-like growth factors (IGFs) have a pivotal role during nervous system development and in its functional maintenance. IGF-I and its high affinity receptor (IGF1R) are expressed in the developing inner ear and in the postnatal cochlear and vestibular ganglia. We recently showed that trophic support by IGF-I is essential for the early neurogenesis of the chick cochleovestibular ganglion (CVG). In the chicken embryo otic vesicle, IGF-I regulates developmental death dynamics by regulating the activity and/or levels of key intracellular molecules, including lipid and protein kinases such as ceramide kinase, Akt and Jun N-terminal kinase (JNK). Mice lacking IGF-I lose many auditory neurons and present increased auditory thresholds at early postnatal ages. Neuronal loss associated to IGF-I deficiency is caused by apoptosis of the auditory neurons, which presented abnormally increased levels of activated caspase-3. It is worth noting that in man, homozygous deletion of the IGF-1 gene causes sensory-neural deafness. IGF-I is thus necessary for normal development and maintenance of the inner ear. The trophic actions of IGF-I in the inner ear suggest that this factor may have therapeutic potential for the treatment of hearing loss.


Molecular Medicine | 2012

Insulin receptor substrate 2 (IRS2)-deficient mice show sensorineural hearing loss that is delayed by concomitant protein tyrosine phosphatase 1B (PTP1B) loss of function

Silvia Murillo-Cuesta; Guadalupe Camarero; Águeda González-Rodríguez; Lourdes Rodriguez-de la Rosa; Deborah J. Burks; Carlos Avendaño; Ángela M. Valverde; Isabel Varela-Nieto

The insulin receptor substrate (IRS) proteins are key mediators of insulin and insulinlike growth factor 1 (IGF-1) signaling. Protein tyrosine phosphatase (PTP)-1B dephosphorylates and inactivates both insulin and IGF-1 receptors. IRS2-deficient mice present altered hepatic insulin signaling and β-cell failure and develop type 2-like diabetes. In addition, IRS2 deficiency leads to developmental defects in the nervous system. IGF1 gene mutations cause syndromic sensorineural hearing loss in humans and mice. However, the involvement of IRS2 and PTP1B, two IGF-1 downstream signaling mediators, in hearing onset and loss has not been studied. Our objective was to study the hearing function and cochlear morphology of Irs2-null mice and the impact of PTP1B deficiency. We have studied the auditory brainstem responses and the cochlear morphology of systemic Irs2−/−Ptpn1+/+, Irs2+/+Ptpn1−/− and Irs2−/−Ptpn1−/− mice at different postnatal ages. The results indicated that Irs2−/−Ptpn1+/+ mice present a profound congenital sensorineural deafness before the onset of diabetes and altered cochlear morphology with hypoinnervation of the cochlear ganglion and aberrant stria vascularis, compared with wild-type mice. Simultaneous PTP1B deficiency in Irs2−/−Ptpn1−/− mice delays the onset of deafness. We show for the first time that IRS2 is essential for hearing and that PTP1B inhibition may be useful for treating deafness associated with hyperglycemia and type 2 diabetes.


Current Drug Delivery | 2012

Drug delivery to the inner ear: Strategies and their therapeutic implications for sensorineural hearing loss

Teresa Rivera; Lorena Sanz; Guadalupe Camarero; Isabel Varela-Nieto

Hearing aids or cochlear implants constitute almost exclusively the treatment options currently available to patients suffering from sensorineural hearing loss and related conditions, such as noise-induced hearing loss, ototoxicity or autoimmune inner ear disease. While some systemic treatments exist, they generally exert adverse secondary effects and their efficacy is hampered by the blood-cochlear barrier that limits drug access to the inner ear. Hence, the new therapies that are being developed for hearing loss focus on strategies for direct drug delivery to the inner ear. The passive and active methods for local delivery can be categorized into two general groups: intratympanic or intracochlear. The intratympanic approach is a non-invasive method that preserves hearing and takes advantage of the permeability of the round window to gain access to the cochlea. However, this technique is limited by not knowing the dose of the drug that reaches the cochlea, (a handicap which might be overcome by the use of tagged drugs). While direct access to the inner ear by intracochlear administration avoids this problem, this method requires surgery. Currently, laboratory animals are being used to explore which therapeutic approaches are best suited to address this problem. These include cochleostomy and the insertion of devices that pump drugs into the inner ear without inducing cochlear damage. In this article, we review the different techniques under evaluation in animal models of deafness, and their potential use for drug delivery and treatment of human inner ear diseases.


Frontiers in Aging Neuroscience | 2015

Transforming growth factor β1 inhibition protects from noise-induced hearing loss

Silvia Murillo-Cuesta; Lourdes Rodríguez-de la Rosa; Julio Contreras; Adelaida M. Celaya; Guadalupe Camarero; Teresa Rivera; Isabel Varela-Nieto

Excessive exposure to noise damages the principal cochlear structures leading to hearing impairment. Inflammatory and immune responses are central mechanisms in cochlear defensive response to noise but, if unregulated, they contribute to inner ear damage and hearing loss. Transforming growth factor β (TGF-β) is a key regulator of both responses and high levels of this factor have been associated with cochlear injury in hearing loss animal models. To evaluate the potential of targeting TGF-β as a therapeutic strategy for preventing or ameliorating noise-induced hearing loss (NIHL), we studied the auditory function, cochlear morphology, gene expression and oxidative stress markers in mice exposed to noise and treated with TGF-β1 peptidic inhibitors P17 and P144, just before or immediately after noise insult. Our results indicate that systemic administration of both peptides significantly improved both the evolution of hearing thresholds and the degenerative changes induced by noise-exposure in lateral wall structures. Moreover, treatments ameliorated the inflammatory state and redox balance. These therapeutic effects were dose-dependent and more effective if the TGF-β1 inhibitors were administered prior to inducing the injury. In conclusion, inhibition of TGF-β1 actions with antagonistic peptides represents a new, promising therapeutic strategy for the prevention and repair of noise-induced cochlear damage.


Otolaryngology-Head and Neck Surgery | 2009

Direct drug application to the round window: A comparative study of ototoxicity in rats

Silvia Murillo-Cuesta; Fernando García-Alcántara; Elena Vacas; Jon Alexander Sistiaga; Guadalupe Camarero; Isabel Varela-Nieto; Teresa Rivera

Objective: To assess the validity of inducing ototoxicity in rats by applying a sponge soaked in kanamycin and furosemide on the round window. Study Design: Basic, randomized, nonblind experimental study. Setting: Animal models of cochlear damage and reliable methods of local drug delivery are fundamental to study hearing loss and to design new therapies. Subjects and Methods: Four experimental groups of six Wistar rats with different methods of drug administration were used: (1) injection of subcutaneous kanamycin (400 mg/kg) and intravenous furosemide (100 mg/kg); (2) local application of a sponge soaked in saline close to the round window; (3) animals for which the sponge was soaked in a solution containing kanamycin (200 mg/mL) and furosemide (50 mg/mL); and (4) sham-operated rats. The tympanic bulla was exposed using a ventral approach, and a bullostomy was performed to visualize the round window membrane. Cochlear function was assessed by measuring the auditory brainstem response, and hearing thresholds in response to click and tone burst stimuli were determined as peak and interpeak latencies. At the end of the study, cochlear histology was analyzed. Results: Systemic administration of kanamycin and furosemide induced profound hearing loss and severe hair cell damage. Local delivery of these ototoxic drugs caused comparable damage but avoided the systemic side effects of the drug. Sham-operated and saline control animals did not experience functional alterations. Conclusion: Situating a sponge soaked in kanamycin and furosemide on the round window membrane through the ventral approach is a reliable method to provoke local ototoxicity in rats.


Archive | 2016

Transforming growth factor β1 inhibition protects from swept-sine violet noise-induced damage

Silvia Murillo-Cuesta; Lourdes Rodriguez-de la Rosa; Adelaida M. Celaya; Guadalupe Camarero; Rafael Cediel; Lorena Sanz; Pedro Cobo; Teresa Rivera; Carlos Avendaño; Isabel Varela-Nieto

Tesis llevada a cabo para conseguir el grado de Doctor por la Universidad de Complutense de Madrid.--2018-01-15.--Sobresaliente cum laudeContiene 7 documentos (1. Objetivos, alcance y publicaciones. 2. Registro y codigo) y 5 con el softwareespanolLas ciber amenazas afectan a todo tipo de organizaciones, causando frecuentes y costosos impactos globalmente. Recientemente, han surgido productos de ciberseguro con el potencial de reducir el impacto de los riesgos en el ciberespacio. Sin embargo, aun tienen que madurar. En este articulo presentamos varios modelos de analisis de riesgos que podrian facilitar la implantacion y adopcion de ciberseguros. Estos modelos, descritos como diagramas de influencia y diagramas de influencia bi-agente, aportan un marco para estimar el impacto economico de los ciber riesgos a los que se enfrentan aseguradores y asegurados, asi como tambien para calcular sus estrategias optimas de mitigacion y transferencia del riesgo. EnglishCyber threats affect all kinds of organisations with frequent and costly impacts worldwide. Cyber insurance products have recently emerged with the potential of lowering the impact of cyberspace risks. However, they have yet to mature. In this paper we present several risk analysis models that may facilitate the implementation and adoption of cyber insurance. These models, described in terms of influence diagrams and bi-agent influence diagrams, provide a framework for estimating the economic impact of cyber risks that may face insurers and insurees as well as calculating their optimal risk mitigation and transfer strategies.Trabajo presentado a la III Iberoamerican Conference on Supercritical Fluids celebrada en Cartagena de Indias (Colombia) del 1 al 5 de abril de 2013.Trabajo presentado a la 26th IAEA Fusion Energy Conference, celebrada en Kyoto (Japon) del 17 al 22 de octubre de 2016.The Joint Iberian Meeting on Atomic and Molecular Physics (IBER), Barcelona, September 12-14th, 2017. -- http://iber2017.com/index.phpPoster presentado en el 10o Congreso de la Asociacion Iberica de Endocrinologia Comparada AIEC, celebrado en Castellon, Espana, del 23 al 25 de septiembre de 2015Resumen del trabajo presentado a la XI Reunion del Grupo de Microbiologia Molecular, celebrada en Sevilla del 6 al 8 de septiembre de 2016.Chinchilla-Rodriguez, Zaida; Miguel, Sandra; Perianes-Rodriguez, Antonio; Ovalle-Perandones, Antonia; Olmeda-Gomez, Carlos. (2016). Autonomy vs. dependency of scientific collaboration in scientific performance . 21st International Conference on Science and Technology Indicators, STI2016. Valencia, Spain, 14-16 September 2016XXV National Spectroscopy Meeting (XXV RNE), IX Iberian Spectroscopy Conference (IX CIE), Alicante, 20th-22nd July, 2016Resumen del trabajo presentado a la 43rd International Conference on Micro and Nano Engineering (MNE), celebrada en Braga (Portugal) del 18 al 22 de septiembre de 2017.Contiene 7 documentos (1. Objetivos, alcance y publicaciones. 2. Registro, interface y codigo) y 5 con el softwarePoster presentado en el congreso 4th SCARCE International Conference, celebrado en Cadiz, Espana el 25 y 26 de noviembre de 2013We present a Cultural Heritage conceptual data model built under the European INSPIRE ( Infrastructure for Spatial Information in the European Community ) Directive. Our model develops the Data Specification on Protected Sites , part of the INSPIRE Annex I. Hence its orientation towards georeferenced heritage data. The data model has been developed by an interdisciplinary group made up of specialists in the field of Geomatics and Cultural Heritage. It is our aim to achieve a generic, extendable and interoperable schema. It should be generic enough to embrace all kind of protected heritage data, from an ancient pilgrim’s way to the last artifact found in an archaeological excavation, extendable to allow any kind of data producer to adapt the model to the nature of their own information and interoperable to combine spatial data sets from different sources through network services, via Internet. The achievement of these three characteristics features international norms and standards referred to our kind of data. This implies adaptation to INSPIRE as well as to several ISO norms: ISO 19100 series regarding geographical information, ISO 21127 (CIDOC-CRM Model) for heritage thematic data and ISO 15836 (Dublin Core) for document resources. The data model comprehends two main dimensions: cultural entities in a strict sense, and the legislative figures created to protect them. This allows for the representation of cultural objects (i.e. historical buildings or archaeological sites) and their link to their legislative protection, keeping them as separate realities. In order to describe the data model, an international common language has been used: UML (Unified Modeling Language), a standard itself. Thus, we present a class-diagram depicting all legal and cultural entities, in the form of classes with their corresponding relations, attributes, constraints and stereotypes.Trabajo presentado en el 11th Spanish-Italian Symposium on Organic Chemistry SISOC-XI celebrado en San Sebastian (Espana), del 13 al 15 de julio de 2016.Trabajo presentado en el XVIII Congreso Peruano de Geologia, celebrado en Lima (Peru), del 16 al 19 de octubre de 2016Poster presentado en las XXXIII Jornadas de la Asociacion Espanola de Entomologia, celebradas en Almeria, del 15 al 18 de noviembre de 2017This research has been funded by the Spanish Ministry of Economy and Competitiveness, through research projects POSTFIRE (CGL2013-47862-C2-1-R) and GEOFIRE (CGL2012-38655-C04-01)The main contribution of this work is the improvement of the efficiency of a PEMFC power system while guaranteeing conditions that also improve its durability. Adopting the NMPC scheme with the distributed parameter model and the nonlinear observer, the efficiency of the PEMFC-based system can be maximized guaranteeing at the same time the appropriate internal gas concentration profiles to avoid global and local hydrogen and oxygen starvation and proper membrane humidification.Trabajo presentado en la 13a Reunion de la Red Espanola de Bacterias Lacticas (RedBAL), celebrada en Madrid (Espana) del 17 al 18 de junio de 2019Memoria de tesis doctoral presentada por Uxue Tilves Matheu para obtener el titulo de Doctora en Ciencias del Mar por la Universitat Politecnica de Catalunya (UPC), realizada bajo la direccion de la Dra. Ana Maria Sabates Freijo y de la Dra. Veronica Lorena Fuentes del Institut de Ciencies del Mar (ICM-CSIC).-- 149 pages, appendicesTrabajo presentado por Nuria Vallverdu Coll para la obtencion del grado de Master universitario en investigacion basica y aplicada en recursos cinegeticos, realizado en el Instituto de Investigacion en Recursos Cinegeticos (IREC, CSIC-UCLM-JCCM).Resumen del poster presentado a la 7th International Conference on Polyphenols and Health, celebrada en Tours (Francia) del 27 al 30 de octubre de 2015.Trabajo financiado con el Proyecto DR3AMCGL2014-55118 del MINECO (Proyecto coordinado del proyecto SALTACRES).Trabajo presentado en el Congreso Iberoamericano de Hidrogeno y Pilas de Combustible, celebrado en Barcelona (Espana) del 15 al 17 de octubre de 2014.El presente articulo describe el empleo del flujo de diseno basado en modelos para el desarrollo de bloques reconfigurables automaticamente para el procesado de imagenes sobre FPGA. Para ello se han concebido arquitecturas hardware que aprovechan caracteristicas especificas de algunos algoritmos de procesado y que pueden ser modificadas a traves de un novedoso procedimiento software. Este aspecto, unido a las restantes opciones de parametrizacion de los diferentes modulos, permite liberar al disenador de los detalles especificos de las implementaciones hardware asi como adaptar el consumo de recursos del FPGA a las necesidades de la aplicacion. El proceso de reconfiguracion automatica se ilustra con el bloque de convolucion generico realizando comparaciones entre implementaciones de diferentes arquitecturas sobre un FPGA Spartan-6 LX45.Trabajo presentado en el 8th European Meeting on Solar Chemistry and Photocatalysis, celebrado en Salonica (Grecia) del 25 al 28 de Junio de 2014.Resumen del poster presentado a las I Jornadas Cientificas del CIAL celebradas el 5 de junio de 2014 en Madrid.-- et al.Trabajo presentado en el 4th International Conodont Symposium, celebrado en Valencia (Espana), del 25 al 30 de junio de 2017Comunicacion presentada en el Aquaculture Europe 2014, celebrado en Donostia-San Sebastian, Espana, del 14 al 17 de octubre de 2014Triptico de la reunion celebrada en la Universidad de Murcia del 12 al 14 de Noviembre de 2015.Trabajo presentado en la 11a Reunion de la Red Espanola de Bacterias Lacticas (RedBAL), celebrada en Gijon (Asturias, Espana) del 28 al 30 de Junio de 2017Trabajo Fin de Master: Master en Catalisis Homogenea y Quimica Molecular. Grupo de Cristales liquidos y Polimeros, Departamento de Quimica Organica de la Universidad de Zaragoza (Curso 2014/2015).La elaboracion de este articulo se inscribe en el proyecto de investigacion “Innovacion oculta: cambio de paradigma en los estudios de innovacion” (FFI2011-25475), Ministerio de Economia y Competitividad, Gobierno de Espana.Poster presented at the 18th International Microscopy Congress (ICM 2014) that took place in Prague (Czech Republic) during 7-12th September 2014.Esta investigacion ha sido posible gracias a la financiacion de los proyectos del Plan Nacional CGL2012-36682 y CGL2016-75109-P del Ministerio de Economia y Competitividad, y al Convenio Principado de Asturias-Universidad de Oviedo y MNCN-CSIC.Resumen del poster presentado a la 10th International Conference one Carbon Metabolism, vitamins B and Homocysteine, celebrada en Nancy (Francia) del 7 al 11 de julio de 2015.La celulosa es la fuente de energia mas abundante que hay en la Tierra. Su transformacion en glucosa se considera la etapa mas importante en la produccion de biocombustibles a partir de biomasa lignocelulosica. Para esta transformacion es necesaria la accion sinergica de tres tipos de enzimas que hidrolizan los enlaces s-1,4 de la celulosa: (i) las endoglucanasas, que actuan al azar sobre enlaces internos, (ii) las celobiohidrolasas, que operan progresivamente por los extremos reductores y no reductores de la cadena, y (iii) las s-glucosidasas (BGL), que hidrolizan celobiosa y los celooligosacaridos mas pequenos hasta glucosa. Los hongos filamentosos son la principal fuente de celulasas, siendo los crudos del genero Trichoderma los mas estudiados y comercializados historicamente. Sin embargo, estos hongos secretan niveles insuficientes de BGL para una conversion efectiva de la celulosa, por lo que con frecuencia requieren ser suplementados con preparaciones ricas en esta enzima procedentes de otros hongos. Recientemente, se han descrito cepas de Penicillium con gran capacidad para secretar altos niveles de BGL al medio extracelular. Ademas de su papel en la hidrolisis de la celulosa las BGL tambien pueden emplearse para sintetizar compuestos de interes industrial mediante reacciones de transglicosilacion. En este trabajo se ha estudiado una nueva cepa fungica productora de celulasas, identificada como Talaromyces amestolkiae, en base a un analisis molecular y morfologico. Se han purificado a homogeneidad electroforetica tres BGL (BGL-1, BGL-2 y BGL-3) secretadas por el hongo y se han caracterizado bioquimicamente. BGL-1 y BGL-2 son proteinas monomericas, mientras que BGL-3 es un dimero funcional. Los valores de actividad maxima de estas enzimas se obtuvieron a pH 4,0 y entre 50-60 oC, siendo estables en un rango de pH de 4-7 y a 50 oC. Las tres mostraron distinto comportamiento en funcion del sustrato (pNPG o celobiosa), ensayandose tambien el efecto de determinados compuestos quimicos e inhibidores en su actividad. Las tres pueden hidrolizar celooligosacaridos de diferente longitud, disminuyendo la eficacia de hidrolisis con el aumento de la polimerizacion, y no son activas frente a polisacaridos. Ademas, mostraron actividad de transglicosilacion, formando alquilglicosidos y celooligosacaridos de mayor longitud que los usados como sustratos. Las tres BGL se identificaron mediante huella peptidica y en base la alta homologia con otras BGL fungicas relacionadas filogeneticamente, se disenaron cebadores especificos que permitieron la secuenciacion de los genes que codifican cada una de ellas. El analisis de las secuencias aminoacidicas mostro que BGL-1 es miembro de la familia 1 de las glicosil hidrolasas, mientras que BGL-2 y BGL-3 pertenecen a la familia 3. Teniendo en cuenta que existen pocas BGL fungicas cristalizadas, se construyeron modelos moleculares de estas ultimas en base a las estructuras con las que presentaron mayor identidad. El crudo enzimatico de T. amestolkiae, rico en BGL, se uso de forma individual y como suplemento de otros cocteles comerciales en experimentos de sacarificacion a partir de slurry acido de paja de trigo. Los resultados obtenidos indican que el hongo secreta, ademas de celulasas, otras enzimas complementarias que potencian la liberacion de azucares fermentables. Se analizo el secretoma de T. amestolkiae usando Avicel o slurry acido de paja de trigo como fuente de carbono. Las celulasas fueron las enzimas mas abundantes en ambas condiciones, sin embargo, en el crudo obtenido a partir de los cultivos en slurry aumento la proporcion de BGL y otras enzimas distintas a las celulasas, indicando que para la degradacion de un sustrato complejo es necesaria mayor diversidad enzimatica. Los resultados obtenidos en este trabajo abren nuevas vias para la formulacion de cocteles enzimaticos eficaces en el contexto de la degradacion de la biomasa lignocelulosica.Trabajo presentado en el 4th International Congress on Ichnology - ICHNIA 2016: Ichnology for the 21st century: (Palaeo) Biological Traces towards Sustainable Development, celebrado en Idanha-a-Nova (Portugal), del 6 al 9 de mayo de 2016Resumen del trabajo presentado al Joint European Magnetic Symposia (JEMS), celebrado en Glasgow (UK) del 21 al 26 de agosto de 2016.Vazquez, J. T. ... et. al.-- Inciativa Iberica para el Estudio de las Fallas Activas, Tercera Reunion Iberica sobre Fallas Activas y Paleosismologia IBERFAULT 2018 - Third Iberian Meeting on Active Faults and Paleoseismology, 11-13 June 2018, Alicante, Spain.-- 4 pages, 2 figuresLa infeccion temprana por Verticillium dahliae en olivar y la discriminacion entre niveles de severidad de la Verticilosis es viable mediante la utilizacion de imagenes termicas, multiespectrales e hiperespectrales adquiridas con vehiculos aereos no tripulados a escala de parcela o tripulados a escala de comarca. El indicador relacionado con la temperatura de copa (CWSI), indices de reflectancia (B, BG1, BR1) y la fluorescencia clorofilica (FLD3) se identifican como buenos indicadores para detectar la Verticilosis en etapas tempranas del desarrollo de la enfermedad, mientras que NDVI, PRI515, R/G, HI e indices de estimacion de clorofila y carotenos demuestran ser buenos indicadores para la cuantificacion de dano moderado o severo causada por Verticilosis, lo que puede ser de utilidad para el diseno de estrategias de control de la Verticilosis a escala de parcela y de comarca. La infeccion temprana por Verticillium dahliae en olivar y la discriminacion entre niveles de severidad de la Verticilosis es viable mediante la utilizacion de imagenes termicas, multiespectrales e hiperespectrales adquiridas con vehiculos aereos no tripulados a escala de parcela o tripulados a escala de comarca. El indicador relacionado con la temperatura de copa (CWSI), indices de reflectancia (B, BG1, BR1) y la fluorescencia clorofilica (FLD3) se identifican como buenos indicadores para detectar la Verticilosis en etapas tempranas del desarrollo de la enfermedad, mientras que NDVI, PRI515, R/G, HI e indices de estimacion de clorofila y carotenos demuestran ser buenos indicadores para la cuantificacion de dano moderado o severo causada por Verticilosis, lo que puede ser de utilidad para el diseno de estrategias de control de la Verticilosis a escala de parcela y de comarca. El olivo (Olea europaea L.) es el cultivo lenoso no tropical que ocupa mayor superficie en todo el mundo, con el 95% de la produccion mundial localizada en la cuenca mediterranea. Espana es el pais con mayor superficie de olivar del mundo con 2,6 MHa y aproximadamente el 39% de la produccion mundial. La Verticilosis, causada por el hongo de suelo Verticillium dahliae Kleb, constituye la principal amenaza para el olivar. Esta enfermedad afecta al olivo en todos los paises de tradicion olivarera y causa importantes perdidas de rendimiento y muerte de los arboles (Jimenez-Diaz y col., 2012). Este patogeno coloniza el sistema vascular de la planta, bloqueando el flujo del agua y finalmente induciendo estres hidrico (Van Alfen, 1989).Espana es el mayor productor de citricos de la Union Europea y el quinto a nivel mundial, con una produccion anual superior a cinco millones de toneladas (MAGRAMA, 2016). Este sector genera una gran cantidad de subproductos, con un elevado aporte energetico y alto contenido en pectinas y azucares, por lo que podrian usarse como materias primas en dietas para rumiantes. Sin embargo, los subproductos de citricos son muy diversos, por lo que su composicion quimica y valor nutritivo tambien puede ser variable (FEDNA, 2010; Feedipedia, 2016). El objetivo de este trabajo fue analizar la composicion quimica y la produccion de gas in vitro de subproductos de citricos producidos en nuestro pais.Resumen del trabajo presentado a las I Jornadas Cientificas del CIAL celebradas el 5 de junio de 2014 en Madrid.The Indian Summer Monsoon onset is one of the meteorological events most anticipated in the world. Due to its relevance for the population, the India Meteorological Department has dated the onset over the southern tip of the Indian Peninsula (Kerala) since 1901. The traditional method to date the onset was based in the judgment of skilled meteorologist and because of this, the method was considered subjective and not adequate for the study of long-term changes in the onset.Resumen del poster presentado a las I Jornadas Cientificas del CIAL celebradas el 5 de junio de 2014 en Madrid.Trabajo presentado en el European Workshop on Experimental and Behavioral Economics (EWEBE), organizado por la Universidad de Bologna los dias 26 y 27 de mayo de 2017 con el titulo: The impact of deliberative structures on voting behavio.--Trabajo presentado en los Bilkent Microeconomics Seminars organizados por la Bilkent University (Ankara, Turkey) el dia 29 de noviembre de 2017La compacidad del racimo es un rasgo de gran interes en la vid, dado que puede condicionar su calidad y rendimiento. Estos efectos se producen fundamentalmente a traves de su relacion, directa o indirecta, con la arquitectura del racimo, el comportamiento reproductivo y el grado o modo de exposicion de las bayas al ambiente. Respecto a los dos primeros, en un estudio previo, determinamos que tanto la longitud del raquis y sus primeras ramas como el numero de bayas por racimo son los caracteres con mayor incidencia en la compacidad entre los analizados. Ahora bien, el estudio de la base genetica responsable del numero de bayas requiere de su diseccion previa, dado que es una variable secundaria, resultado del numero de flores por inflorescencia y de la tasa de cuajado o conversion de flor en fruto. En este trabajo se presenta un estudio preliminar en el que se han caracterizado fenotipicamente 104 variedades de vid para estudiar su comportamiento reproductivo. Asi, sobre una base amplia de diversidad varietal, se han estimado variables como el numero de flores, la tasa de cuajado, corrimiento, millerandage, etc., evaluando su posible relacion con la compacidad del racimo. Este trabajo, una vez completado durante varios anos, permitira conocer la diversidad existente para el comportamiento reproductivo en la vid, asi como, de forma mas concreta, abordar la caracterizacion de los procesos geneticos responsables de las diferencias fenotipicas detectadas para el comportamiento reproductivo y sus elementos individuales y para la compacidad del racimo, identificando los posibles genes involucrados en dichos procesos.Trabajo presentado en la 11th International Conference on Grapevine Breeding and Genetics, celebrada en Pekin del 29 de julio al 2 de agosto de 2014.The Polarimetric and Helioseismic Imager (PHI) is the first deep-space solar spectropolarimeter, on-board the Solar Orbiter (SO) space mission. It faces: stringent requirements on science data accuracy, a dynamic environment, and severe limitations on telemetry volume. SO/PHI overcomes these restrictions through on-board instrument calibration and science data reduction, using dedicated firmware in FPGAs. This contribution analyses the accuracy of a data processing pipeline by comparing the results obtained with SO/PHI hardware to a reference from a ground computer. The results show that for the analysed pipeline the error introduced by the firmware implementation is well below the requirements of SO/PHI.This work has been financed within the framework of the projects P/309307 Arqueoastronomia of the IAC, and Orientatio ad sidera III (AYA2011-26759) of the Spanish MINECO. ACGG is Ramon y Cajal researcher of the MINECO.Este trabajo ha sido financiado por el proyecto RECUPERA 2020 del MINECO y EU-FEDER; y por el proyecto TRANS·FORMA (PP.TRA.TAA201600.9). La investigacion realizada por E. Rodriguez ha sido realizada gracias al programa DOC-INIA (INIA-FEDER).Trabajo presentado en el XXIV Congreso Iberoamericano de Catalisis (CICat 2014), “Catalisis para Biorrefineria”, celebrado en Medellin del 11 al 13 de septiembre de 2014.2 paginas y 1 tabla.- Trabajo presentado en el IX Congreso de Mejora Genetica de Plantas celebrado en Murcia entre el 18 y el 20 de septiembre de 2018.3 paginas, 1 tabla, 1 figura.--Trabajo presentado a las XVI Jornadas sobre Produccion Animal AIDA (Zaragoza, 19 al 20 de mayo, 2015).Poster presentado en el XVI International Clay Conference from the Oceans to Space Granada, Spain, July 17-21, (2017)XIII Reunion Iberica de Algas Toxicas y Biotoxinas Marinas (REDIBAL 2018) - XIII Reunion Iberica de Fitoplancton Toxico - XIII Iberian Toxic Algae and Marine Biotoxins Meeting, VI Simposio Internacional de Ciencias del Mar - VI International Symposium of Marine Sciences (ISMS 2018), 20- 22 June 2018, Vigo.-- 2 pagesThis research was financed with project AGL2011-22783 granted by the Spanish Ministry of Economy and Competiveness. M.C. Soto was supported by a CONACYT (Mexican Council of Sciences and Technology) doctoral fellowship.This work was supported by the Spanish Ministerio de Economia y Competitividad (grants CGL2012-36251 and CGL2015-64727-P to X.B., and BFU2010-15906 to JLM), and Catalan Government (2014 SGR 619). The research has also benefited from FEDER funds.Trabajo presentado en el IX International Symposium on Grapevine Physiology and Biotechnology, celebrado en La Serena (Chile) del 21 al 26 de abril de 2013.5 paginas, 4 figuras, 1 tabla.--Trabajo presentado a las: XLI Jornadas Cientificas y XVII Jornadas Internacionales de Ovinotecnia y Caprinotecnia. (Talavera de la Reina, Toledo, Espana, 14-16 septiembre, 2016).Se presenta una revisión histórica de los equinodermos Ordovícicos de Portugal. Todos los registros conocidos hasta el momento pertenecen al Ordovícico Medio-Superior (Darriwiliense-Katiense) y las asociaciones presentan gran diversidad aunque en general los taxones están poco o mal conocidos. La mayor parte de los yacimientos se concentran en las regiones de Amêndoa-Mação y Buçaco, aunque también existen citas de equinodermos en Arouca, Dornes, Moncorvo y Valongo. Por último se comentan futuras líneas de trabajo que ayudarán a comprender mejor estas faunas, perfeccionar y completar el conocimiento del registro fósil del grupo en el Ordovícico centroibérico. Ordovician echinoderms from Portugal: state of the artResumen del trabajo presentado al 37o Convegno Internazionale dei Docenti della Rappresentazione de la Unione Italiana Disegno (UDI), celebrado en Torino (Italia) del 17 al 19 de septiembre de 2015.Trabajo presentado al Danish Days on Caloric Materials and Devices, celebrado en Roskilde (Dinamarca) del 2 al 3 de octubre de 2017.Trabajo presentado en el ImageNano 2015 (Bringing together Nanoscience and Nanotechnology), celebrado en Bilbao del 10 al 13 de marzo de 2015.Este estudio ha sido financiado por el proyecto AGL-2012-40172-C02-01 del Ministerio de Economia y Competitividad (MINECO). AEF agradece al MINECO la financiacion de su contrato de investigacion (FPI).We present a detailed study of a X -ray selected sample of 5 submillimeter bright QSOs at


Frontiers in Aging Neuroscience | 2015

Corrigendum: Transforming growth factor β1 inhibition protects from noise-induced hearing loss

Silvia Murillo-Cuesta; Lourdes Rodriguez-de la Rosa; Julio Contreras; Adelaida M. Celaya; Guadalupe Camarero; Teresa Rivera; Isabel Varela-Nieto

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Isabel Varela-Nieto

Spanish National Research Council

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Silvia Murillo-Cuesta

Spanish National Research Council

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Carlos Avendaño

Autonomous University of Madrid

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Julio Contreras

Complutense University of Madrid

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Yolanda León

Spanish National Research Council

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Adelaida M. Celaya

Instituto de Salud Carlos III

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Carmen Fernández-Moreno

Spanish National Research Council

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