Chronic treatment with carvacrol improves passive avoidance memory in a rat model of Parkinson's disease

ABSTRACT The present study investigated the effects of carvacrol on motor and memory deficits as well as hyperalgesia in the 6-OHDA-lesioned rat model of Parkinson's disease. The animals were subjected to unilateral microinjection of 6-OHDA into the medial forebrain bundle and treated with carv...

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Main Authors: Hossein Haddadi, Ziba Rajaei, Hojjatallah Alaei, Somayeh Shahidani
Format: Article
Language:English
Published: Academia Brasileira de Neurologia (ABNEURO)
Series:Arquivos de Neuro-Psiquiatria
Subjects:
Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0004-282X2018000200071&lng=en&tlng=en
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author Hossein Haddadi
Ziba Rajaei
Hojjatallah Alaei
Somayeh Shahidani
author_facet Hossein Haddadi
Ziba Rajaei
Hojjatallah Alaei
Somayeh Shahidani
author_sort Hossein Haddadi
collection DOAJ
description ABSTRACT The present study investigated the effects of carvacrol on motor and memory deficits as well as hyperalgesia in the 6-OHDA-lesioned rat model of Parkinson's disease. The animals were subjected to unilateral microinjection of 6-OHDA into the medial forebrain bundle and treated with carvacrol (25, 50 and 100 mg/kg, ip) for six weeks after surgery. The 6-OHDA-lesioned rats showed contralateral rotations towards the lesion side, which was accompanied by learning and memory deficits in a passive avoidance test and a decrease in tail withdrawal latency in a tail flick test at the end of week 6. The results also showed that treatment with carvacrol at a dose of 25 mg/kg ameliorated memory deficits, with no effect on rotations and hyperalgesia in lesioned rats. In conclusion, carvacrol improves memory impairments in rats with Parkinson's disease; therefore, it may serve as an adjunct therapy for the alleviation of memory deficits in Parkinson's disease patients.
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spelling doaj.art-8aa45f61fbf547d69a7931c8cf3f23322022-12-21T17:32:34ZengAcademia Brasileira de Neurologia (ABNEURO)Arquivos de Neuro-Psiquiatria1678-4227762717710.1590/0004-282x20170193S0004-282X2018000200071Chronic treatment with carvacrol improves passive avoidance memory in a rat model of Parkinson's diseaseHossein HaddadiZiba RajaeiHojjatallah AlaeiSomayeh ShahidaniABSTRACT The present study investigated the effects of carvacrol on motor and memory deficits as well as hyperalgesia in the 6-OHDA-lesioned rat model of Parkinson's disease. The animals were subjected to unilateral microinjection of 6-OHDA into the medial forebrain bundle and treated with carvacrol (25, 50 and 100 mg/kg, ip) for six weeks after surgery. The 6-OHDA-lesioned rats showed contralateral rotations towards the lesion side, which was accompanied by learning and memory deficits in a passive avoidance test and a decrease in tail withdrawal latency in a tail flick test at the end of week 6. The results also showed that treatment with carvacrol at a dose of 25 mg/kg ameliorated memory deficits, with no effect on rotations and hyperalgesia in lesioned rats. In conclusion, carvacrol improves memory impairments in rats with Parkinson's disease; therefore, it may serve as an adjunct therapy for the alleviation of memory deficits in Parkinson's disease patients.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0004-282X2018000200071&lng=en&tlng=enCarvacrol6-hidroxidopaminamemóriaatividade motorahiperalgesiadoença de Parkinson
spellingShingle Hossein Haddadi
Ziba Rajaei
Hojjatallah Alaei
Somayeh Shahidani
Chronic treatment with carvacrol improves passive avoidance memory in a rat model of Parkinson's disease
Arquivos de Neuro-Psiquiatria
Carvacrol
6-hidroxidopamina
memória
atividade motora
hiperalgesia
doença de Parkinson
title Chronic treatment with carvacrol improves passive avoidance memory in a rat model of Parkinson's disease
title_full Chronic treatment with carvacrol improves passive avoidance memory in a rat model of Parkinson's disease
title_fullStr Chronic treatment with carvacrol improves passive avoidance memory in a rat model of Parkinson's disease
title_full_unstemmed Chronic treatment with carvacrol improves passive avoidance memory in a rat model of Parkinson's disease
title_short Chronic treatment with carvacrol improves passive avoidance memory in a rat model of Parkinson's disease
title_sort chronic treatment with carvacrol improves passive avoidance memory in a rat model of parkinson s disease
topic Carvacrol
6-hidroxidopamina
memória
atividade motora
hiperalgesia
doença de Parkinson
url http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0004-282X2018000200071&lng=en&tlng=en
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AT hojjatallahalaei chronictreatmentwithcarvacrolimprovespassiveavoidancememoryinaratmodelofparkinsonsdisease
AT somayehshahidani chronictreatmentwithcarvacrolimprovespassiveavoidancememoryinaratmodelofparkinsonsdisease