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Chronic recording of the vagus nerve to analyze modulations by the light-dark cycle.
Smets, Hugo; Stumpp, Lars; Chavez, Javier; Cury, Joaquin; Vande Perre, Louis; Doguet, Pascal; Vanhoestenberghe, Anne; Delbeke, Jean; El Tahry, Riëm; Nonclercq, Antoine.
Afiliación
  • Smets H; Bio, Electro and Mechanical Systems (BEAMS), Université Libre de Bruxelles, Brussels, Belgium.
  • Stumpp L; Department of Neurology, Institute of Neurosciences (IONS), Université Catholique de Louvain, Brussels, Belgium-Cliniques Universitaires Saint Luc, Brussels, Belgium.
  • Chavez J; Bio, Electro and Mechanical Systems (BEAMS), Université Libre de Bruxelles, Brussels, Belgium.
  • Cury J; Bio, Electro and Mechanical Systems (BEAMS), Université Libre de Bruxelles, Brussels, Belgium.
  • Vande Perre L; Bio, Electro and Mechanical Systems (BEAMS), Université Libre de Bruxelles, Brussels, Belgium.
  • Doguet P; Synergia Medical SA, Mont-Saint-Guibert, Belgium.
  • Vanhoestenberghe A; Implanted Devices Group, University College London, London, United Kingdom.
  • Delbeke J; Department of Neurology, Institute of Neurosciences (IONS), Université Catholique de Louvain, Brussels, Belgium-Cliniques Universitaires Saint Luc, Brussels, Belgium.
  • El Tahry R; Department of Neurology, Institute of Neurosciences (IONS), Université Catholique de Louvain, Brussels, Belgium-Cliniques Universitaires Saint Luc, Brussels, Belgium.
  • Nonclercq A; Bio, Electro and Mechanical Systems (BEAMS), Université Libre de Bruxelles, Brussels, Belgium.
J Neural Eng ; 19(4)2022 07 08.
Article en En | MEDLINE | ID: mdl-35764074
Objective.The vagus nerve is considered to play a key role in the circadian rhythm. Chronic continuous analysis of the vagus nerve activity could contribute to a better understanding of the role of the vagus nerve in light-dark modulations. This paper presents a continuous analysis of spontaneous vagus nerve activity performed in four rats.Approach.We analyzed the vagus electroneurogram (VENG) and electroencephalogram (EEG) over a recording period of 28 d. Spike activity and heart rate estimation were derived from the VENG, and slow-wave activity was derived from the EEG. The presence of repetitive patterns was investigated with periodograms, cosinor fitting, autocorrelation, and statistical tests. The light-dark variations derived from the VENG spikes were compared with EEG slow waves, an established metric in circadian studies.Results.Our results demonstrate that light-dark variations can be detected in long-term vagus nerve activity monitoring. A recording period of about 7 d is required to characterize accurately the VENG light-dark variations.Significance.As a major outcome of this study, vagus nerve recordings hold the promise to help understand circadian regulation.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Fotoperiodo / Estimulación del Nervio Vago Límite: Animals Idioma: En Revista: J Neural Eng Asunto de la revista: NEUROLOGIA Año: 2022 Tipo del documento: Article País de afiliación: Bélgica Pais de publicación: Reino Unido
Texto completo
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Fotoperiodo / Estimulación del Nervio Vago Límite: Animals Idioma: En Revista: J Neural Eng Asunto de la revista: NEUROLOGIA Año: 2022 Tipo del documento: Article País de afiliación: Bélgica Pais de publicación: Reino Unido