Strain and sex dependent effects of isolation housing relative to environmental enrichment on operant sensation seeking in mice

Abstract Sensation seeking is a multidimensional phenotype that predicts the development of drug addiction in humans and addiction-like drug seeking in rodents. Several lines of evidence suggest that chronic stress increases sensation seeking and addiction-like drug seeking through common genetic me...

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Autores principales:	Price E. Dickson, Guy Mittleman
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/1995a66f563b4a05b8d5aa7c3d7d5891
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spelling	oai:doaj.org-article:1995a66f563b4a05b8d5aa7c3d7d58912021-12-02T14:54:50ZStrain and sex dependent effects of isolation housing relative to environmental enrichment on operant sensation seeking in mice10.1038/s41598-021-97252-02045-2322https://doaj.org/article/1995a66f563b4a05b8d5aa7c3d7d58912021-09-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-97252-0https://doaj.org/toc/2045-2322Abstract Sensation seeking is a multidimensional phenotype that predicts the development of drug addiction in humans and addiction-like drug seeking in rodents. Several lines of evidence suggest that chronic stress increases sensation seeking and addiction-like drug seeking through common genetic mechanisms. Discovery and characterization of these mechanisms would reveal how chronic stress interacts with the genome to influence sensation seeking and how drugs of abuse hijack these fundamental reward mechanisms to drive addiction. To this end, we tested the hypothesis that chronic isolation housing stress (relative to environmental enrichment) influences operant sensation seeking as a function of strain, sex, or their interaction. To determine if the BXD recombinant inbred panel could be used to identify genetic and epigenetic mechanisms underlying any identified gene-by-environment interactions, we used mice from the two BXD founder strains. Following 10 weeks of differential housing, we assessed operant sensation seeking using several reinforcement schedules. The primary finding from this study was that DBA/2J but not C57BL/6J mice were significantly vulnerable to an isolation-induced increase (relative to environmental enrichment) in sensation seeking during extinction when the sensory reward was no longer available; this effect was significantly more robust in females. These data reveal a previously unknown isolation-induced effect on extinction of operant sensation seeking that is sex-dependent, addiction-relevant, and that can be dissected using the BXD recombinant inbred panel.Price E. DicksonGuy MittlemanNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-9 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Price E. Dickson Guy Mittleman Strain and sex dependent effects of isolation housing relative to environmental enrichment on operant sensation seeking in mice
description	Abstract Sensation seeking is a multidimensional phenotype that predicts the development of drug addiction in humans and addiction-like drug seeking in rodents. Several lines of evidence suggest that chronic stress increases sensation seeking and addiction-like drug seeking through common genetic mechanisms. Discovery and characterization of these mechanisms would reveal how chronic stress interacts with the genome to influence sensation seeking and how drugs of abuse hijack these fundamental reward mechanisms to drive addiction. To this end, we tested the hypothesis that chronic isolation housing stress (relative to environmental enrichment) influences operant sensation seeking as a function of strain, sex, or their interaction. To determine if the BXD recombinant inbred panel could be used to identify genetic and epigenetic mechanisms underlying any identified gene-by-environment interactions, we used mice from the two BXD founder strains. Following 10 weeks of differential housing, we assessed operant sensation seeking using several reinforcement schedules. The primary finding from this study was that DBA/2J but not C57BL/6J mice were significantly vulnerable to an isolation-induced increase (relative to environmental enrichment) in sensation seeking during extinction when the sensory reward was no longer available; this effect was significantly more robust in females. These data reveal a previously unknown isolation-induced effect on extinction of operant sensation seeking that is sex-dependent, addiction-relevant, and that can be dissected using the BXD recombinant inbred panel.
format	article
author	Price E. Dickson Guy Mittleman
author_facet	Price E. Dickson Guy Mittleman
author_sort	Price E. Dickson
title	Strain and sex dependent effects of isolation housing relative to environmental enrichment on operant sensation seeking in mice
title_short	Strain and sex dependent effects of isolation housing relative to environmental enrichment on operant sensation seeking in mice
title_full	Strain and sex dependent effects of isolation housing relative to environmental enrichment on operant sensation seeking in mice
title_fullStr	Strain and sex dependent effects of isolation housing relative to environmental enrichment on operant sensation seeking in mice
title_full_unstemmed	Strain and sex dependent effects of isolation housing relative to environmental enrichment on operant sensation seeking in mice
title_sort	strain and sex dependent effects of isolation housing relative to environmental enrichment on operant sensation seeking in mice
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/1995a66f563b4a05b8d5aa7c3d7d5891
work_keys_str_mv	AT priceedickson strainandsexdependenteffectsofisolationhousingrelativetoenvironmentalenrichmentonoperantsensationseekinginmice AT guymittleman strainandsexdependenteffectsofisolationhousingrelativetoenvironmentalenrichmentonoperantsensationseekinginmice
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Strain and sex dependent effects of isolation housing relative to environmental enrichment on operant sensation seeking in mice

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