2011
DOI: 10.1523/jneurosci.3314-10.2011
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Depolarizing Actions of GABA in Immature Neurons Depend Neither on Ketone Bodies Nor on Pyruvate

Abstract: GABA depolarizes immature neurons because of a high [Cl

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Cited by 55 publications
(81 citation statements)
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References 130 publications
(149 reference statements)
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“…Although criticism [26][27][28] concerning the concept of depolarizing GABA has been largely invalidated in recent years [29][30][31][32][33] , supportive evidence from the intact mammalian brain is still lacking. In favour of a depolarizing GABA action in nonmammalian species in vivo, iontophoretic application of GABA or glycine was found to evoke somatic Ca 2 þ transients (CaTs) in spinal neurons of zebrafish larvae 34 .…”
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confidence: 99%
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“…Although criticism [26][27][28] concerning the concept of depolarizing GABA has been largely invalidated in recent years [29][30][31][32][33] , supportive evidence from the intact mammalian brain is still lacking. In favour of a depolarizing GABA action in nonmammalian species in vivo, iontophoretic application of GABA or glycine was found to evoke somatic Ca 2 þ transients (CaTs) in spinal neurons of zebrafish larvae 34 .…”
mentioning
confidence: 99%
“…Here we directly address the question of whether GABA is depolarizing in vivo in the intact neocortex of living neonatal mice. We focussed on the upper cortical plate (CP) at postnatal days (P) 3-4, since previous investigations from several laboratories have convincingly shown that, in vitro, GABA acts as a predominantly depolarizing neurotransmitter on CP neurons at this age 4,30,31 . Combining electrophysiological and optical methods with multiple pharmacological manipulations, our results demonstrate that GABA depolarizes the majority of immature neurons in vivo but controls neocortical network activity mainly through inhibition.…”
mentioning
confidence: 99%
“…Wegweisende Arbeiten der 1990er Jahre haben einen ausgeprägten Anstieg der neuronalen Chloridextrusion im Verlauf der frühen postnatalen Entwicklung nachgewiesen (Luhmann & Prince, 1991). Dieser ist vor allem auf eine Zunahme der KCC2-Expression zurückzuführen (Rivera et al, 1999;Hübner et al, 2001 (Owens et al, 1996;Yamada et al, 2004;Achilles et al, 2007;Kirmse et al, 2010;Tyzio et al, 2011). Wesentliche Erkenntnisse aus diesen Untersuchungen lauten: 1) E GABA ist in unreifen Neuronen typischerweise weniger negativ als das Ruhemembranpotential, weshalb die DF GABA depolarisierend wirkt); 2) GABA kann in unreifen Neuronen Aktionspotentiale auslösen; 3) [Cl − ] in nimmt im Verlauf der postnatalen Entwicklung deutlich ab.…”
Section: Ontogenetische Veränderungen Der Chloridhomöostaseunclassified
“…Glu kaip sužadinantis neurosiuntiklis indukuoja Glu receptorius, taip padidinamas jautrumas, aktyvinamas nervinio signalo perdavimas. Slopinantis GABA neurosiuntiklis, atvirkščiai, slopina neuronų jautrumą [61,62].…”
Section: Maisto Priedas Glutamatas -Maistinis Pagardasunclassified