Cited by 55Stress Responses and CortisolMemory and Neural MechanismsResilience and Mental Health

Unpredictable chronic stress in juvenile or adult rats has opposite effects, respectively, promoting and impairing resilience

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Ricon, T., Toth, E., Leshem, M., Braun, K., Richter-Levin, G.·2012·Stress

Abstract

We evaluated the effects of early maternal deprivation (MD; age 7-14 days) alone or in combination with unpredictable chronic stress (UCS; MDUN; 28-84 days) on anxiety and learning in 90 days old adult rats. We hypothesized that exposure to both stressors (MDUN) would be more detrimental than exposure to one or neither. Unexpectedly, adult rats from the MDUN group did not differ from control animals, whereas adult MD animals exhibited impaired avoidance learning. We next investigated the effect of juvenile-onset (30-90 days) versus adult-onset (60-90 days) stress on avoidance learning in adulthood (90 days). We found that adult-onset chronic stress impaired avoidance learning and memory whereas juvenile-onset stress did not. Thus, the results again indicate that juvenile exposure to UCS induces resilience rather than impairment.

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  • Maternal deprivation early combined with chronic unpredictable stress during juvenile periods promoted greater stress resilience than maternal deprivation alone or combined with adult chronic unpredictable stress.

    “A recent study showed that maternal deprivation during early periods combined with chronic unpredictable stress (CUS; exposure to varying physical stresses) during juvenile periods promoted a greater degree of stress resilience than maternal deprivation alone or when combined with adult CUS46.”

    From Neurobiology of resilience (2012) · cites this paper as [46]

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Authors
Ricon, T., Toth, E., Leshem, M., Braun, K., & Richter-Levin, G.
Affiliations
  • University of Haifa (IL)
  • Nagoya University (JP)
  • Otto-von-Guericke-Universität Magdeburg (DE)
Corresponding author
Ricon, T.
Venue
Stress
Published
2011-06-19
Volume
15
Issue
1
Pages
11-20
ISSN
  • 1025-3890 (ISSN-L)
  • 1607-8888
OpenAlex
W1753989155
Cited by
55
References
36
Citations by year
2025: 3 · 2024: 2 · 2023: 1 · 2022: 6 · 2021: 1 · 2020: 1 · 2018: 4 · 2017: 5 · 2016: 7 · 2015: 4 · 2014: 9 · 2013: 6 · 2012: 5
FWCI
2.63
Type
journal article
Language
en
Open access
Locations
  • Stress (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Neuroscience › Behavioral Neuroscience › Stress Responses and Cortisol
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Memory and Neural Mechanisms
  • Social Sciences › Psychology › Clinical Psychology › Resilience and Mental Health
Keywords
unpredictable chronic stress, maternal deprivation, early life stress, resilience, anxiety, avoidance learning, memory impairment
MeSH terms
Aging, Animals, Anxiety, Avoidance Learning, Exploratory Behavior, Food Deprivation, Male, Maternal Deprivation, Memory, Stress, Psychological, Swimming, Maze Learning, Rats, Resilience, Psychological

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