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October 2021

Anticonvulsant properties of linalool in glutamate-related seizure models

Author(s): Silva, B. , LF, Souza, D.

Abstract: In order to investigate the pharmacodynamic basis of the previously-established anticonvulsant properties of linalool, we examined the effects of this compound on behavioral and neurochemical aspects of glutamate expression in experimental seizure models. Specifically, linalool effects were investigated to determine its inhibition of (i) L-[3H]glutamate binding at CNS (central nervous system membranes), (ii) N-methyl-D-aspartate (NMDA)-induced convulsions, (iii) quinolinic acid (QUIN)-induced convulsions, and the behavioral and neurochemical correlates of PTZ-kindling. The data indicate that linalool modulates glutamate activation expression in vitro (competitive antagonism of L-[3H]glutamate binding) and in vivo (delayed NMDA convulsions and blockage of QUIN convulsions). Linalool partially inhibited and significantly delayed the behavioral expression of PTZ-kindling, but did not modify the PTZ-kindling-induced increase in L-[3H]glutamate binding.

Keyword(s): linalool


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