Relative luminosity in the plus maze upon the exploratory behaviour of female Wistar rats

Objective This study evaluated the provision of two configuration of the Elevated Pluz-Maze (EPM) by analizing the exploratory behaviour of female Wistar rats in different phases of the estrous cycle in EPMs with different gradients of luminosity between the open and enclosed arms (O/E∆Lux).Methods...

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Main Authors: Diana Yae Sakae, Thiago Mamoru Sakae, Marta Aparecida Paschoalini, Moacir Serralvo Faria
Format: Article
Language:English
Published: Academia Brasileira de Neurologia (ABNEURO) 2015-07-01
Series:Arquivos de Neuro-Psiquiatria
Subjects:
Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0004-282X2015000700601&lng=en&tlng=en
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author Diana Yae Sakae
Thiago Mamoru Sakae
Marta Aparecida Paschoalini
Moacir Serralvo Faria
author_facet Diana Yae Sakae
Thiago Mamoru Sakae
Marta Aparecida Paschoalini
Moacir Serralvo Faria
author_sort Diana Yae Sakae
collection DOAJ
description Objective This study evaluated the provision of two configuration of the Elevated Pluz-Maze (EPM) by analizing the exploratory behaviour of female Wistar rats in different phases of the estrous cycle in EPMs with different gradients of luminosity between the open and enclosed arms (O/E∆Lux).Methods Female Wistar rats were treated with Midazolam (MDZ, 1.0 mg.kg-1) and were tested for their exploratory behaviour in either the EPM 10 O/E∆Lux or EPM 96 O/E∆Lux.Results A multiple regression analysis indicated that the O/E∆Lux is negatively associated with the %Open arm entries and %Open arm time, suggesting that as O/E∆Lux increases, the open arm exploration decreases. The estrous cycle phase did not influence the open-arm exploration in either EPM. MDZ- induced anxiolysis was detected in 96 O/E∆Lux EPM in all phases of the EC.Discussion Results of this study suggest the importance of the O/E∆Lux to establish the arm preference in the EPM, and to preserve the predictive validity of the EPM.
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spelling doaj.art-3c7eb0f961194da689ec8a3c1892c21e2022-12-21T18:31:11ZengAcademia Brasileira de Neurologia (ABNEURO)Arquivos de Neuro-Psiquiatria1678-42272015-07-0173760160610.1590/0004-282X20150088S0004-282X2015000700601Relative luminosity in the plus maze upon the exploratory behaviour of female Wistar ratsDiana Yae SakaeThiago Mamoru SakaeMarta Aparecida PaschoaliniMoacir Serralvo FariaObjective This study evaluated the provision of two configuration of the Elevated Pluz-Maze (EPM) by analizing the exploratory behaviour of female Wistar rats in different phases of the estrous cycle in EPMs with different gradients of luminosity between the open and enclosed arms (O/E∆Lux).Methods Female Wistar rats were treated with Midazolam (MDZ, 1.0 mg.kg-1) and were tested for their exploratory behaviour in either the EPM 10 O/E∆Lux or EPM 96 O/E∆Lux.Results A multiple regression analysis indicated that the O/E∆Lux is negatively associated with the %Open arm entries and %Open arm time, suggesting that as O/E∆Lux increases, the open arm exploration decreases. The estrous cycle phase did not influence the open-arm exploration in either EPM. MDZ- induced anxiolysis was detected in 96 O/E∆Lux EPM in all phases of the EC.Discussion Results of this study suggest the importance of the O/E∆Lux to establish the arm preference in the EPM, and to preserve the predictive validity of the EPM.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0004-282X2015000700601&lng=en&tlng=enciclo estralratas Wistaransiedademedolabirinto elevado em cruzluminosidade
spellingShingle Diana Yae Sakae
Thiago Mamoru Sakae
Marta Aparecida Paschoalini
Moacir Serralvo Faria
Relative luminosity in the plus maze upon the exploratory behaviour of female Wistar rats
Arquivos de Neuro-Psiquiatria
ciclo estral
ratas Wistar
ansiedade
medo
labirinto elevado em cruz
luminosidade
title Relative luminosity in the plus maze upon the exploratory behaviour of female Wistar rats
title_full Relative luminosity in the plus maze upon the exploratory behaviour of female Wistar rats
title_fullStr Relative luminosity in the plus maze upon the exploratory behaviour of female Wistar rats
title_full_unstemmed Relative luminosity in the plus maze upon the exploratory behaviour of female Wistar rats
title_short Relative luminosity in the plus maze upon the exploratory behaviour of female Wistar rats
title_sort relative luminosity in the plus maze upon the exploratory behaviour of female wistar rats
topic ciclo estral
ratas Wistar
ansiedade
medo
labirinto elevado em cruz
luminosidade
url http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0004-282X2015000700601&lng=en&tlng=en
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