Deficit of quantal release of GABA in experimental models of temporal lobe epilepsy
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DOI: 10.1038/9142
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Hirsch, June C.
Agassandian, Christopher
Merchán-Pérez, Ángel
Ben-Ari, Yézéquiel
DeFelipe, Javier
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Abstract
Because GABA (gamma-aminobutyric acid) receptor-mediated inhibition controls the excitability of principal neurons in the brain, deficits in GABAergic inhibition have long been favored to explain seizures. In an experimental model of temporal lobe epilepsy, we have identified a deficit of inhibition in presynaptic GABAergic terminals characterized by decreased GABA quantal activity associated with reduced synaptic vesicle density. This decrease in vesicle number primarily seems to affect the reserve pool, rather than the docked or the readily releasable pool.
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Hirsch, J. C., Agassandian, C., Merchan-Perez, A., Ben-Ari, Y., Defelipe, J., Esclapez, M., y Bernard, C. (1999). Deficit of quantal release of GABA in experimental models of temporal lobe epilepsy. Nature neuroscience, 2(6), 499-500.