SciELO - Scientific Electronic Library Online

 
vol.28 número1Las Curvas Para Medir Circunferencia Cefálica Y Las Potenciales Diferencias Antropométricas En Latinoamérica Y El MundoTelesalud Y Telemedicina Para El Manejo De La Epilepsia índice de autoresíndice de materiabúsqueda de artículos
Home Pagelista alfabética de revistas  

Servicios Personalizados

Revista

Articulo

Indicadores

Links relacionados

  • No hay articulos similaresSimilares en SciELO

Compartir


Revista Ecuatoriana de Neurología

versión On-line ISSN 2631-2581versión impresa ISSN 1019-8113

Resumen

GONZALEZ-ISLAS, Carlos  y  GARCIA-BEREGUIAIN, Miguel Angel. Embryonic Spontaneous Network Activity And Its Role On Synaptic Development. Rev Ecuat Neurol [online]. 2019, vol.28, n.1, pp.56-62. ISSN 2631-2581.

Embrionic neural networks exibit a temporary special form of electrical activity known as Spontaneous Network Activity (SNA). SNA occurs as soon as synaptic conections are stablished and consists on synchronized action potential firing for most of the neurons on the network, followed by long silents periods where network excitability is gradually recovered till a new SNA episode can happen. This kind of neural activity allows a high level of synchronization among neurons on developing networks, contributing to synaptic connection and maturation. SNA has been described in several regions of the developing nervous system due to conserved properties among developing neural networks: redundant intercellular connectivity and the fact that the neurotransmitter gamma-aminobutiric acid (GABA) is excitatory during early embryonic development (GABA is inhibitory in the adult nervous system).In this review we discuss the hypothesis that SNA contributes to synaptic strenght for glutamatergic and gabaergic synapsis while both of them are excitatory, by using the same synaptic plasticity mechanism known as homeostatic plasticity.

Palabras clave : Spontaneous network activity; homeostatic plasticity; embryonic development..

        · resumen en Español     · texto en Español     · Español ( pdf )