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L Francisco Lorenzo-Martín Centro de Investigación del Cáncer, CSIC-University of Salamanca, Salamanca, Spain
Instituto de Biología Molecular y Celular del Cáncer, CSIC-University of Salamanca, Salamanca, Spain
Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), CSIC-University of Salamanca, Salamanca, Spain

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Mauricio Menacho-Márquez Centro de Investigación del Cáncer, CSIC-University of Salamanca, Salamanca, Spain
Instituto de Biología Molecular y Celular del Cáncer, CSIC-University of Salamanca, Salamanca, Spain
Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), CSIC-University of Salamanca, Salamanca, Spain

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Salvatore Fabbiano Centro de Investigación del Cáncer, CSIC-University of Salamanca, Salamanca, Spain
Instituto de Biología Molecular y Celular del Cáncer, CSIC-University of Salamanca, Salamanca, Spain

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Omar Al-Massadi Departamento de Fisioloxía, University of Santiago de Compostela, Santiago de Compostela, Spain
Centro de Investigación en Medicina Molecular e Enfermidades Crónicas, University of Santiago de Compostela, Santiago de Compostela, Spain
Centro de Investigación Biomédica en Red de Cáncer sobre la Fisiopatología de la Obesidad y Nutrición (CIBEROBN), University of Santiago de Compostela, Santiago de Compostela, Spain

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Antonio Abad Centro de Investigación del Cáncer, CSIC-University of Salamanca, Salamanca, Spain
Instituto de Biología Molecular y Celular del Cáncer, CSIC-University of Salamanca, Salamanca, Spain
Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), CSIC-University of Salamanca, Salamanca, Spain

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Sonia Rodríguez-Fdez Centro de Investigación del Cáncer, CSIC-University of Salamanca, Salamanca, Spain
Instituto de Biología Molecular y Celular del Cáncer, CSIC-University of Salamanca, Salamanca, Spain

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María A Sevilla Centro de Investigación del Cáncer, CSIC-University of Salamanca, Salamanca, Spain
Instituto de Biología Molecular y Celular del Cáncer, CSIC-University of Salamanca, Salamanca, Spain

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María J Montero Centro de Investigación del Cáncer, CSIC-University of Salamanca, Salamanca, Spain
Instituto de Biología Molecular y Celular del Cáncer, CSIC-University of Salamanca, Salamanca, Spain

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Carlos Diéguez Departamento de Fisioloxía, University of Santiago de Compostela, Santiago de Compostela, Spain
Centro de Investigación en Medicina Molecular e Enfermidades Crónicas, University of Santiago de Compostela, Santiago de Compostela, Spain
Centro de Investigación Biomédica en Red de Cáncer sobre la Fisiopatología de la Obesidad y Nutrición (CIBEROBN), University of Santiago de Compostela, Santiago de Compostela, Spain

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Rubén Nogueiras Departamento de Fisioloxía, University of Santiago de Compostela, Santiago de Compostela, Spain
Centro de Investigación en Medicina Molecular e Enfermidades Crónicas, University of Santiago de Compostela, Santiago de Compostela, Spain
Centro de Investigación Biomédica en Red de Cáncer sobre la Fisiopatología de la Obesidad y Nutrición (CIBEROBN), University of Santiago de Compostela, Santiago de Compostela, Spain

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Xosé R Bustelo Centro de Investigación del Cáncer, CSIC-University of Salamanca, Salamanca, Spain
Instituto de Biología Molecular y Celular del Cáncer, CSIC-University of Salamanca, Salamanca, Spain

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Multiple crosstalk between peripheral organs and the nervous system are required to maintain physiological and metabolic homeostasis. Using Vav3-deficient mice as a model for chronic sympathoexcitation-associated disorders, we report here that afferent fibers of the hepatic branch of the vagus nerve are needed for the development of the peripheral sympathoexcitation, tachycardia, tachypnea, insulin resistance, liver steatosis and adipose tissue thermogenesis present in those mice. This neuronal pathway contributes to proper activity of the rostral ventrolateral medulla, a sympathoregulatory brainstem center hyperactive in Vav3−/− mice. Vagal afferent inputs are also required for the development of additional pathophysiological conditions associated with deregulated rostral ventrolateral medulla activity. By contrast, they are dispensable for other peripheral sympathoexcitation-associated disorders sparing metabolic alterations in liver.

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