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Updated: Jul 13, 2026

Electrophoretic Delivery of γ-aminobutyric Acid (GABA) into Epileptic Focus Prevents Seizures in Mice
Published on: May 16, 2019
Extrasynaptic GABA and glutamate receptors in epilepsy
Germán Sierra-Paredes1, Germán Sierra-Marcuño
1Neuroscience Division, Department of Biochemistry and Molecular Biology, School of Medicine, University of Santiago, San Francisco 1, 15782 Santiago de Compostela, Spain. bngersp@usc.es
Extrasynaptic receptors, particularly those for glutamate and GABA, are increasingly recognized for their role in epilepsy. Modulating these receptors offers promising new therapeutic targets for seizure control.
Area of Science:
- Neuroscience
- Epileptology
- Cellular and Molecular Biology
Background:
- Epilepsy involves disrupted brain function due to synchronous neuronal activity.
- Long-lasting brain changes affect neurotransmission, synaptic organization, and glial activity.
- Alterations in glutamatergic and GABAergic synaptic transmission are implicated in epilepsy.
Purpose of the Study:
- To review recent advances in understanding extrasynaptic receptors in epilepsy.
- To highlight the potential role of extrasynaptic receptors in seizure dynamics.
- To identify extrasynaptic receptors as potential pharmacological targets.
Main Methods:
- Literature review of recent studies on non-synaptic transmission.
- Analysis of research on receptor mobility and glia-neuron signaling.
- Examination of evidence for extrasynaptic receptor involvement in seizure initiation, maintenance, and arrest.
Main Results:
- Extrasynaptic GABA and glutamate receptors may significantly influence seizure activity.
- Extracellular amino acids modulate neuronal and glial communication via extrasynaptic receptors.
- Synaptic and extrasynaptic receptors exhibit distinct roles in neuronal excitability and regulation.
Conclusions:
- Extrasynaptic receptors play a crucial role in epilepsy beyond traditional synaptic mechanisms.
- The dynamic regulation of extrasynaptic receptors is key to neuronal adaptation.
- Targeting extrasynaptic receptors and their regulatory mechanisms presents a promising therapeutic avenue for epilepsy.
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