Homeostatic competition between phasic and tonic inhibition. [PDF]
J Biol Chem, 2013 The GABAA receptors are the major inhibitory receptors in the brain and are localized at both synaptic and extrasynaptic membranes. Synaptic GABAA receptors mediate phasic inhibition, whereas extrasynaptic GABAA receptors mediate tonic inhibition. Both phasic and tonic inhibitions regulate neuronal activity, but whether they regulate each other is not ...
Wu X +7 more
europepmc +4 more sources
A new meaning for “Gin & Tonic”: tonic inhibition as the target for ethanol action in the brain [PDF]
Alcohol, 2007 Gamma-aminobutyric acid (GABA) is the main chemical inhibitory neurotransmitter in the brain. In the central nervous system, it acts on two distinct types of receptor: an ion channel, that is, an "ionotropic" receptor permeable to Cl- and HCO3- (GABAA receptors [GABAARs]) and a G-protein coupled "metabotropic" receptor that is linked to various ...
Istvan, Mody +2 more
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GABA-Independent GABAA Receptor Openings Maintain Tonic Currents [PDF]
, 2013 Activation of GABAA receptors (GABAARs) produces two forms of inhibition: ‘phasic’ inhibition generated by the rapid, transient activation of synaptic GABAARs by presynaptic GABA release, and tonic inhibition generated by the persistent activation of ...
Herd, Murray B +27 more
core +1 more source
Metabotropic Regulation of Extrasynaptic GABAA Receptors
Frontiers in Neural Circuits, 2013 A large body of work now shows the importance of GABAA receptor-mediated tonic inhibition in regulating CNS function. However, outside of pathological conditions, there is relatively little evidence that the magnitude of tonic inhibition is itself under ...
William Martin Connelly +3 more
doaj +1 more source
The general anaesthetic etomidate inhibits the excitability of mouse thalamocortical relay neurons by modulating multiple modes of GABAA receptor-mediated inhibition [PDF]
, 2014 Modulation of thalamocortical (TC) relay neuron function has been implicated in the sedative and hypnotic effects of general anaesthetics. Inhibition of TC neurons is mediated predominantly by a combination of phasic and tonic inhibition, together with a
Herd, Murray B. +5 more
core +1 more source
Pathophysiological power of improper tonic GABAA conductances in mature and immature models
Frontiers in Neural Circuits, 2013 High-affinity extrasynaptic gamma-aminobutyric acid A (GABAA) receptors are tonically activated by low and consistent levels of ambient GABA, mediating chronic inhibition against neuronal excitability (tonic inhibition) and the modulation of neural ...
Kiyoshi eEgawa, Atsuo eFukuda
doaj +1 more source
Modulating anxiety with extrasynaptic inhibition [PDF]
, 2014 Traumatic experiences and stress can lead to complex behavioral adaptations, including increased levels of anxiety and fear generalization. The neuronal mechanisms underlying such maladaptive behavioral changes are, however, poorly understood.
Botta, Paolo
core +1 more source
Tonic Inhibition of TRPV3 by Mg2+ in Mouse Epidermal Keratinocytes [PDF]
Journal of Investigative Dermatology, 2012 The transient receptor potential vanilloid 3 channel (TRPV3) is abundantly expressed in epidermal keratinocytes and has important roles in sensory biology and skin health. Mg(2+) deficiency causes skin disorders under certain pathological conditions such as type 2 diabetes mellitus.
Luo, Jialie +3 more
openaire +2 more sources
Cyfip1 haploinsufficiency does not alter GABAA receptor δ-subunit expression and tonic inhibition in dentate gyrus PV+ interneurons and granule cells [PDF]
, 2019 Copy number variation at chromosomal region 15q11.2 is linked to increased risk of neurodevelopmental disorders including autism and schizophrenia. A significant gene at this locus is cytoplasmic fragile X mental retardation protein (FMRP) interacting ...
Connelly, William M +4 more
core +1 more source
Extrasynaptic δ-subunit containing GABAA receptors [PDF]
Journal of Integrative Neuroscience, 2021 γ-Aminobutyric acid type A receptors (GABAARs) are GABA gated heteropentameric chloride channels responsible for the adult brain’s primary inhibition.
Ayla Arslan
doaj +1 more source