A paradoxical switch: the implications of excitatory GABAergic signaling in neurological disorders

Gamma-aminobutyric acid (GABA) is the primary inhibitory neurotransmitter in the central nervous system. In the mature brain, inhibitory GABAergic signaling is critical in maintaining neuronal homeostasis and vital human behaviors such as cognition, emotion, and motivation. While classically known t...

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Main Authors: Colin J. McArdle, Alana A. Arnone, Chelcie F. Heaney, Kimberly F. Raab-Graham
Format: Article
Language:English
Published: Frontiers Media S.A. 2024-01-01
Series:Frontiers in Psychiatry
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fpsyt.2023.1296527/full
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author Colin J. McArdle
Alana A. Arnone
Alana A. Arnone
Chelcie F. Heaney
Kimberly F. Raab-Graham
author_facet Colin J. McArdle
Alana A. Arnone
Alana A. Arnone
Chelcie F. Heaney
Kimberly F. Raab-Graham
author_sort Colin J. McArdle
collection DOAJ
description Gamma-aminobutyric acid (GABA) is the primary inhibitory neurotransmitter in the central nervous system. In the mature brain, inhibitory GABAergic signaling is critical in maintaining neuronal homeostasis and vital human behaviors such as cognition, emotion, and motivation. While classically known to inhibit neuronal function under physiological conditions, previous research indicates a paradoxical switch from inhibitory to excitatory GABAergic signaling that is implicated in several neurological disorders. Various mechanisms have been proposed to contribute to the excitatory switch such as chloride ion dyshomeostasis, alterations in inhibitory receptor expression, and modifications in GABAergic synaptic plasticity. Of note, the hypothesized mechanisms underlying excitatory GABAergic signaling are highlighted in a number of neurodevelopmental, substance use, stress, and neurodegenerative disorders. Herein, we present an updated review discussing the presence of excitatory GABAergic signaling in various neurological disorders, and their potential contributions towards disease pathology.
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spelling doaj.art-4f1edb8a2d204b718ed7861d60ec7d512024-01-10T04:14:21ZengFrontiers Media S.A.Frontiers in Psychiatry1664-06402024-01-011410.3389/fpsyt.2023.12965271296527A paradoxical switch: the implications of excitatory GABAergic signaling in neurological disordersColin J. McArdle0Alana A. Arnone1Alana A. Arnone2Chelcie F. Heaney3Kimberly F. Raab-Graham4Department of Physiology and Pharmacology, Wake Forest University School of Medicine, Winston-Salem, NC, United StatesDepartment of Physiology and Pharmacology, Wake Forest University School of Medicine, Winston-Salem, NC, United StatesDepartment of General Surgery, Wake Forest University School of Medicine, Winston-Salem, NC, United StatesDepartment of Physiology and Pharmacology, Wake Forest University School of Medicine, Winston-Salem, NC, United StatesDepartment of Physiology and Pharmacology, Wake Forest University School of Medicine, Winston-Salem, NC, United StatesGamma-aminobutyric acid (GABA) is the primary inhibitory neurotransmitter in the central nervous system. In the mature brain, inhibitory GABAergic signaling is critical in maintaining neuronal homeostasis and vital human behaviors such as cognition, emotion, and motivation. While classically known to inhibit neuronal function under physiological conditions, previous research indicates a paradoxical switch from inhibitory to excitatory GABAergic signaling that is implicated in several neurological disorders. Various mechanisms have been proposed to contribute to the excitatory switch such as chloride ion dyshomeostasis, alterations in inhibitory receptor expression, and modifications in GABAergic synaptic plasticity. Of note, the hypothesized mechanisms underlying excitatory GABAergic signaling are highlighted in a number of neurodevelopmental, substance use, stress, and neurodegenerative disorders. Herein, we present an updated review discussing the presence of excitatory GABAergic signaling in various neurological disorders, and their potential contributions towards disease pathology.https://www.frontiersin.org/articles/10.3389/fpsyt.2023.1296527/fullGABAdepolarizingexcitatorydiseasesGABAARsneurological
spellingShingle Colin J. McArdle
Alana A. Arnone
Alana A. Arnone
Chelcie F. Heaney
Kimberly F. Raab-Graham
A paradoxical switch: the implications of excitatory GABAergic signaling in neurological disorders
Frontiers in Psychiatry
GABA
depolarizing
excitatory
diseases
GABAARs
neurological
title A paradoxical switch: the implications of excitatory GABAergic signaling in neurological disorders
title_full A paradoxical switch: the implications of excitatory GABAergic signaling in neurological disorders
title_fullStr A paradoxical switch: the implications of excitatory GABAergic signaling in neurological disorders
title_full_unstemmed A paradoxical switch: the implications of excitatory GABAergic signaling in neurological disorders
title_short A paradoxical switch: the implications of excitatory GABAergic signaling in neurological disorders
title_sort paradoxical switch the implications of excitatory gabaergic signaling in neurological disorders
topic GABA
depolarizing
excitatory
diseases
GABAARs
neurological
url https://www.frontiersin.org/articles/10.3389/fpsyt.2023.1296527/full
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