• JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
 
  Bookmark and Share
 
 
Master's Dissertation
DOI
https://doi.org/10.11606/D.42.2015.tde-09062015-092034
Document
Author
Full name
Priscila Marianno
Institute/School/College
Knowledge Area
Date of Defense
Published
São Paulo, 2015
Supervisor
Committee
Camarini, Rosana (President)
Buck, Hudson de Sousa
Munhoz, Carolina Demarchi
Title in Portuguese
Camundongos C57BL/6 alojados em ambiente enriquecido apresentam menor consumo de etanol após estresse.
Keywords in Portuguese
Consumo voluntário
Dependência
Enriquecimento ambiental
Estresse
Etanol
Naltrexona
Abstract in Portuguese
A retomada do consumo de etanol após abstinência é uma característica da dependência. O enriquecimento ambiental (EA) parece minimizar os efeitos de drogas de abuso, assim como a naltrexona (NTX). O estudo avaliou se EA, durante abstinência e associado ou não à NTX, alterou o consumo de etanol. Camundongos C57BL/6 foram expostos ao etanol 2h/dia. Após fase de aquisição, os animais foram separados em grupos. Os animais foram alojados em condições padrões e o outro em EA, 24h/dia ou 3h/dia. Após privação, os animais voltaram a ter acesso ao etanol semanalmente. Na última semana, tiveram acesso ao etanol por 24h e antes da reexposição foram submetidos ao estresse de contenção por 1h. Só neste caso, os grupos EA apresentaram uma redução no consumo de 24h. Ainda, outro experimento foi realizado associando o EA a baixas doses de NTX, mas não foram observadas alterações. Os resultados sugerem que o EA pode ajudar o animal a lidar melhor com o estresse, o que o protegeria de um comportamento de maior consumo de etanol.
Title in English
C57BL/6 mice housed in enriched environment present lower ethanol consumption after stress.
Keywords in English
Addiction
Environmental enrichment
Ethanol
Naltrexone
Stress
Voluntary consumption
Abstract in English
The excessive ethanol consumption after abstinence is a feature of addiction. Environmental enrichment (EE) appears to minimize drug cravings, as well as naltrexone (NTX). The study evaluated whether EE during abstinence and with or without NTX, altered ethanol consumption. C57BL/6 mice were exposed to ethanol 2h/day. After an acquisition phase, mice were distributed into groups. The animals were housed in standard condition and the other in EE, 24h/day or 3h/day. After withdrawal, the animals returned to ethanol access weekly. On the last week, mice had access to ethanol for 24h and before re-exposure were subjected to restraint stress for 1h. EE groups decreased the ethanol consumption when mice had 24h free access to ethanol. Another experiment was performed with EE in association to low doses of NTX, but no differences in consumption were observed. The results suggests that EE may help the animal to cope better with stressful situations, resulting in blunted ethanol drinking.
 
WARNING - Viewing this document is conditioned on your acceptance of the following terms of use:
This document is only for private use for research and teaching activities. Reproduction for commercial use is forbidden. This rights cover the whole data about this document as well as its contents. Any uses or copies of this document in whole or in part must include the author's name.
Publishing Date
2015-06-09
 
WARNING: Learn what derived works are clicking here.
All rights of the thesis/dissertation are from the authors
CeTI-SC/STI
Digital Library of Theses and Dissertations of USP. Copyright © 2001-2024. All rights reserved.