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Firing Alterations of Neurons in Alzheimer's Disease: Are They Merely a Consequence of Pathogenesis or a Pivotal Component of Disease Progression?
Tzavellas, Nikolaos P; Tsamis, Konstantinos I; Katsenos, Andreas P; Davri, Athena S; Simos, Yannis V; Nikas, Ilias P; Bellos, Stefanos; Lekkas, Panagiotis; Kanellos, Foivos S; Konitsiotis, Spyridon; Labrakakis, Charalampos; Vezyraki, Patra; Peschos, Dimitrios.
Afiliación
  • Tzavellas NP; Department of Physiology, Faculty of Medicine, School of Health Sciences, University of Ioannina, 451 10 Ioannina, Greece.
  • Tsamis KI; Department of Physiology, Faculty of Medicine, School of Health Sciences, University of Ioannina, 451 10 Ioannina, Greece.
  • Katsenos AP; Department of Neurology, Faculty of Medicine, School of Health Sciences, University Hospital of Ioannina, 455 00 Ioannina, Greece.
  • Davri AS; Department of Physiology, Faculty of Medicine, School of Health Sciences, University of Ioannina, 451 10 Ioannina, Greece.
  • Simos YV; Department of Physiology, Faculty of Medicine, School of Health Sciences, University of Ioannina, 451 10 Ioannina, Greece.
  • Nikas IP; Department of Physiology, Faculty of Medicine, School of Health Sciences, University of Ioannina, 451 10 Ioannina, Greece.
  • Bellos S; Medical School, University of Cyprus, 2029 Nicosia, Cyprus.
  • Lekkas P; Department of Physiology, Faculty of Medicine, School of Health Sciences, University of Ioannina, 451 10 Ioannina, Greece.
  • Kanellos FS; Department of Physiology, Faculty of Medicine, School of Health Sciences, University of Ioannina, 451 10 Ioannina, Greece.
  • Konitsiotis S; Department of Physiology, Faculty of Medicine, School of Health Sciences, University of Ioannina, 451 10 Ioannina, Greece.
  • Labrakakis C; Department of Neurology, Faculty of Medicine, School of Health Sciences, University Hospital of Ioannina, 455 00 Ioannina, Greece.
  • Vezyraki P; Department of Biological Applications and Technology, University of Ioannina, 451 10 Ioannina, Greece.
  • Peschos D; Department of Physiology, Faculty of Medicine, School of Health Sciences, University of Ioannina, 451 10 Ioannina, Greece.
Cells ; 13(5)2024 Feb 29.
Article en En | MEDLINE | ID: mdl-38474398
ABSTRACT
Alzheimer's disease (AD) is the most prevalent neurodegenerative disorder, yet its underlying causes remain elusive. The conventional perspective on disease pathogenesis attributes alterations in neuronal excitability to molecular changes resulting in synaptic dysfunction. Early hyperexcitability is succeeded by a progressive cessation of electrical activity in neurons, with amyloid beta (Aß) oligomers and tau protein hyperphosphorylation identified as the initial events leading to hyperactivity. In addition to these key proteins, voltage-gated sodium and potassium channels play a decisive role in the altered electrical properties of neurons in AD. Impaired synaptic function and reduced neuronal plasticity contribute to a vicious cycle, resulting in a reduction in the number of synapses and synaptic proteins, impacting their transportation inside the neuron. An understanding of these neurophysiological alterations, combined with abnormalities in the morphology of brain cells, emerges as a crucial avenue for new treatment investigations. This review aims to delve into the detailed exploration of electrical neuronal alterations observed in different AD models affecting single neurons and neuronal networks.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Enfermedad de Alzheimer Límite: Humans Idioma: En Revista: Cells Año: 2024 Tipo del documento: Article País de afiliación: Grecia Pais de publicación: Suiza
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Enfermedad de Alzheimer Límite: Humans Idioma: En Revista: Cells Año: 2024 Tipo del documento: Article País de afiliación: Grecia Pais de publicación: Suiza