Behavioral and Molecular Effects Induced by Cannabidiol and Valproate Administration in the GASH/Sal Model of Acute Audiogenic Seizures
Despite evidence that supports cannabidiol (CBD) as an anticonvulsant agent, there remains controversy over the antiseizure efficacy, possible adverse effects, and synergistic interactions with classic antiepileptics such as valproate (VPA). The genetic audiogenic seizure hamster from the University...
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Frontiers Media S.A.
2021-01-01
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language |
English |
format |
Article |
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author |
Giselda Cabral-Pereira Giselda Cabral-Pereira David Sánchez-Benito David Sánchez-Benito Sandra M. Díaz-Rodríguez Sandra M. Díaz-Rodríguez Sandra M. Díaz-Rodríguez Jaime Gonçalves Jaime Gonçalves Jaime Gonçalves Consuelo Sancho Consuelo Sancho Consuelo Sancho Orlando Castellano Orlando Castellano Orlando Castellano Luis J. Muñoz Dolores E. López Dolores E. López Dolores E. López Ricardo Gómez-Nieto Ricardo Gómez-Nieto Ricardo Gómez-Nieto |
spellingShingle |
Giselda Cabral-Pereira Giselda Cabral-Pereira David Sánchez-Benito David Sánchez-Benito Sandra M. Díaz-Rodríguez Sandra M. Díaz-Rodríguez Sandra M. Díaz-Rodríguez Jaime Gonçalves Jaime Gonçalves Jaime Gonçalves Consuelo Sancho Consuelo Sancho Consuelo Sancho Orlando Castellano Orlando Castellano Orlando Castellano Luis J. Muñoz Dolores E. López Dolores E. López Dolores E. López Ricardo Gómez-Nieto Ricardo Gómez-Nieto Ricardo Gómez-Nieto Behavioral and Molecular Effects Induced by Cannabidiol and Valproate Administration in the GASH/Sal Model of Acute Audiogenic Seizures Frontiers in Behavioral Neuroscience animal models antiepileptic drugs cannabis epilepsy gene expression inferior colliculus (IC) |
author_facet |
Giselda Cabral-Pereira Giselda Cabral-Pereira David Sánchez-Benito David Sánchez-Benito Sandra M. Díaz-Rodríguez Sandra M. Díaz-Rodríguez Sandra M. Díaz-Rodríguez Jaime Gonçalves Jaime Gonçalves Jaime Gonçalves Consuelo Sancho Consuelo Sancho Consuelo Sancho Orlando Castellano Orlando Castellano Orlando Castellano Luis J. Muñoz Dolores E. López Dolores E. López Dolores E. López Ricardo Gómez-Nieto Ricardo Gómez-Nieto Ricardo Gómez-Nieto |
author_sort |
Giselda Cabral-Pereira |
title |
Behavioral and Molecular Effects Induced by Cannabidiol and Valproate Administration in the GASH/Sal Model of Acute Audiogenic Seizures |
title_short |
Behavioral and Molecular Effects Induced by Cannabidiol and Valproate Administration in the GASH/Sal Model of Acute Audiogenic Seizures |
title_full |
Behavioral and Molecular Effects Induced by Cannabidiol and Valproate Administration in the GASH/Sal Model of Acute Audiogenic Seizures |
title_fullStr |
Behavioral and Molecular Effects Induced by Cannabidiol and Valproate Administration in the GASH/Sal Model of Acute Audiogenic Seizures |
title_full_unstemmed |
Behavioral and Molecular Effects Induced by Cannabidiol and Valproate Administration in the GASH/Sal Model of Acute Audiogenic Seizures |
title_sort |
behavioral and molecular effects induced by cannabidiol and valproate administration in the gash/sal model of acute audiogenic seizures |
publisher |
Frontiers Media S.A. |
series |
Frontiers in Behavioral Neuroscience |
issn |
1662-5153 |
publishDate |
2021-01-01 |
description |
Despite evidence that supports cannabidiol (CBD) as an anticonvulsant agent, there remains controversy over the antiseizure efficacy, possible adverse effects, and synergistic interactions with classic antiepileptics such as valproate (VPA). The genetic audiogenic seizure hamster from the University of Salamanca (GASH/Sal) is a reliable experimental model of generalized tonic–clonic seizures in response to intense sound stimulation. The present study examines the behavioral and molecular effects of acute and chronic intraperitoneal administrations of VPA (300 mg/kg) and CBD (100 mg/kg) on the GASH/Sal audiogenic seizures, as well as the coadministration of both drugs. The GASH/Sal animals were examined prior to and after the corresponding treatment at 45 min, 7 days, and 14 days for seizure severity and neuroethology, open-field behaviors, body weight variations, and various hematological and biochemical parameters. Furthermore, the brain tissue containing the inferior colliculus (so-called epileptogenic nucleus) was processed for reverse transcription–quantitative polymerase chain reaction analysis to determine the treatment effects on the gene expression of neuronal receptors associated with drug actions and ictogenesis. Our results indicated that single dose of VPA helps prevent the animals from getting convulsions, showing complete elimination of seizures, whereas 7 days of chronic VPA treatment had few effects in seizure behaviors. Acute CBD administration showed subtle attenuation of seizure behaviors, increasing seizure latency and decreasing the duration of the convulsion phase, but without entirely seizure abolition. Chronic CBD treatments had no significant effects on sound-induced seizures, although some animals slightly improved seizure severity. Acute and chronic CBD treatments have no significant adverse effects on body weight, hematological parameters, and liver function, although locomotor activity was reduced. The combination of VPA and CBD did not alter the therapeutic outcome of the VPA monotherapy, showing no apparent synergistic effects. As compared to sham animals, chronic treatments with CBD caused abnormal mRNA expression levels for Trpv1, Adora1, Slc29a1, and Cnr1 genes, whereas no differences in gene expression were found for Htr1a and Sigmar1. Our study shed light on the behavioral and molecular effects of CBD and VPA on the GASH/Sal model and constituted the basis to develop further studies on the pharmacological effects of CBD and its interactions with other anticonvulsants. |
topic |
animal models antiepileptic drugs cannabis epilepsy gene expression inferior colliculus (IC) |
url |
https://www.frontiersin.org/articles/10.3389/fnbeh.2020.612624/full |
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doaj-f0b6bab8cace46648268afa892f33bb32021-01-22T04:36:04ZengFrontiers Media S.A.Frontiers in Behavioral Neuroscience1662-51532021-01-011410.3389/fnbeh.2020.612624612624Behavioral and Molecular Effects Induced by Cannabidiol and Valproate Administration in the GASH/Sal Model of Acute Audiogenic SeizuresGiselda Cabral-Pereira0Giselda Cabral-Pereira1David Sánchez-Benito2David Sánchez-Benito3Sandra M. Díaz-Rodríguez4Sandra M. Díaz-Rodríguez5Sandra M. Díaz-Rodríguez6Jaime Gonçalves7Jaime Gonçalves8Jaime Gonçalves9Consuelo Sancho10Consuelo Sancho11Consuelo Sancho12Orlando Castellano13Orlando Castellano14Orlando Castellano15Luis J. Muñoz16Dolores E. López17Dolores E. López18Dolores E. López19Ricardo Gómez-Nieto20Ricardo Gómez-Nieto21Ricardo Gómez-Nieto22Institute of Neuroscience of Castilla y León (INCYL), University of Salamanca, Salamanca, SpainInstitute for Biomedical Research of Salamanca (IBSAL), University of Salamanca, Salamanca, SpainInstitute of Neuroscience of Castilla y León (INCYL), University of Salamanca, Salamanca, SpainInstitute for Biomedical Research of Salamanca (IBSAL), University of Salamanca, Salamanca, SpainInstitute of Neuroscience of Castilla y León (INCYL), University of Salamanca, Salamanca, SpainInstitute for Biomedical Research of Salamanca (IBSAL), University of Salamanca, Salamanca, SpainDepartment of Cell Biology and Pathology, Faculty of Medicine, University of Salamanca, Salamanca, SpainInstitute of Neuroscience of Castilla y León (INCYL), University of Salamanca, Salamanca, SpainInstitute for Biomedical Research of Salamanca (IBSAL), University of Salamanca, Salamanca, SpainDepartment of Cell Biology and Pathology, Faculty of Medicine, University of Salamanca, Salamanca, SpainInstitute of Neuroscience of Castilla y León (INCYL), University of Salamanca, Salamanca, SpainInstitute for Biomedical Research of Salamanca (IBSAL), University of Salamanca, Salamanca, SpainDepartment of Physiology and Pharmacology, Faculty of Medicine, University of Salamanca, Salamanca, SpainInstitute of Neuroscience of Castilla y León (INCYL), University of Salamanca, Salamanca, SpainInstitute for Biomedical Research of Salamanca (IBSAL), University of Salamanca, Salamanca, SpainDepartment of Cell Biology and Pathology, Faculty of Medicine, University of Salamanca, Salamanca, SpainAnimal Research and Service Center, University of Salamanca, Salamanca, SpainInstitute of Neuroscience of Castilla y León (INCYL), University of Salamanca, Salamanca, SpainInstitute for Biomedical Research of Salamanca (IBSAL), University of Salamanca, Salamanca, SpainDepartment of Cell Biology and Pathology, Faculty of Medicine, University of Salamanca, Salamanca, SpainInstitute of Neuroscience of Castilla y León (INCYL), University of Salamanca, Salamanca, SpainInstitute for Biomedical Research of Salamanca (IBSAL), University of Salamanca, Salamanca, SpainDepartment of Cell Biology and Pathology, Faculty of Medicine, University of Salamanca, Salamanca, SpainDespite evidence that supports cannabidiol (CBD) as an anticonvulsant agent, there remains controversy over the antiseizure efficacy, possible adverse effects, and synergistic interactions with classic antiepileptics such as valproate (VPA). The genetic audiogenic seizure hamster from the University of Salamanca (GASH/Sal) is a reliable experimental model of generalized tonic–clonic seizures in response to intense sound stimulation. The present study examines the behavioral and molecular effects of acute and chronic intraperitoneal administrations of VPA (300 mg/kg) and CBD (100 mg/kg) on the GASH/Sal audiogenic seizures, as well as the coadministration of both drugs. The GASH/Sal animals were examined prior to and after the corresponding treatment at 45 min, 7 days, and 14 days for seizure severity and neuroethology, open-field behaviors, body weight variations, and various hematological and biochemical parameters. Furthermore, the brain tissue containing the inferior colliculus (so-called epileptogenic nucleus) was processed for reverse transcription–quantitative polymerase chain reaction analysis to determine the treatment effects on the gene expression of neuronal receptors associated with drug actions and ictogenesis. Our results indicated that single dose of VPA helps prevent the animals from getting convulsions, showing complete elimination of seizures, whereas 7 days of chronic VPA treatment had few effects in seizure behaviors. Acute CBD administration showed subtle attenuation of seizure behaviors, increasing seizure latency and decreasing the duration of the convulsion phase, but without entirely seizure abolition. Chronic CBD treatments had no significant effects on sound-induced seizures, although some animals slightly improved seizure severity. Acute and chronic CBD treatments have no significant adverse effects on body weight, hematological parameters, and liver function, although locomotor activity was reduced. The combination of VPA and CBD did not alter the therapeutic outcome of the VPA monotherapy, showing no apparent synergistic effects. As compared to sham animals, chronic treatments with CBD caused abnormal mRNA expression levels for Trpv1, Adora1, Slc29a1, and Cnr1 genes, whereas no differences in gene expression were found for Htr1a and Sigmar1. Our study shed light on the behavioral and molecular effects of CBD and VPA on the GASH/Sal model and constituted the basis to develop further studies on the pharmacological effects of CBD and its interactions with other anticonvulsants.https://www.frontiersin.org/articles/10.3389/fnbeh.2020.612624/fullanimal modelsantiepileptic drugscannabisepilepsygene expressioninferior colliculus (IC) |