Cited by 41Stress Responses and CortisolNeurotransmitter Receptor Influence on BehaviorNeuroscience and Neuropharmacology Research

Too Much of a Good Thing: Blocking Noradrenergic Facilitation in Medial Prefrontal Cortex Prevents the Detrimental Effects of Chronic Stress on Cognition

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Jett, Julianne D, Morilak, David A·2013·Neuropsychopharmacology

Abstract

Cognitive impairments associated with dysfunction of the medial prefrontal cortex (mPFC) are prominent in stress-related psychiatric disorders. We have shown that enhancing noradrenergic tone acutely in the rat mPFC facilitated extra-dimensional (ED) set-shifting on the attentional set-shifting test (AST), whereas chronic unpredictable stress (CUS) impaired ED. In this study, we tested the hypothesis that the acute facilitatory effect of norepinephrine (NE) in mPFC becomes detrimental when activated repeatedly during CUS. Using microdialysis, we showed that the release of NE evoked in mPFC by acute stress was unchanged at the end of CUS treatment. Thus, to then determine if repeated elicitation of this NE activity in mPFC during CUS may have contributed to the ED deficit, we infused a cocktail of α(1)-, β(1)-, and β(2)-adrenergic receptor antagonists into the mPFC prior to each CUS session, then tested animals drug free on the AST. Antagonist treatment prevented the CUS-induced ED deficit, suggesting that NE signaling during CUS compromised mPFC function. We confirmed that this was not attributable to sensitization of adrenergic receptor function following chronic antagonist treatment, by administering an additional microinjection into the mPFC immediately prior to ED testing. Acute antagonist treatment did not reverse the beneficial effects of chronic drug treatment during CUS, nor have any effect on baseline ED performance in chronic vehicle controls. Thus, we conclude that blockade of noradrenergic receptors in mPFC protected against the detrimental cognitive effects of CUS, and that repeated elicitation of noradrenergic facilitatory activity is one mechanism by which chronic stress may promote mPFC cognitive dysfunction.

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Crossref · 10.1038/npp.2012.216

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  • Both forms of inflexibility occur after chronic stress; only stress-induced attentional set-shifting deficits are prevented by adrenergic receptor agonist cocktail into mPFC, while reversal learning deficits remain.

    “Both forms of inflexibility have been reported following chronic stress but only stress-induced attentional set-shifting deficits were prevented by localized infusions of a cocktail of alpha 1, beta 1 and beta 2 adrenergic receptor agonists into the mPFC before each stress session of the chronic treatment period [257], whilst stress-induced reversal learning deficits remain.”

    From Prefrontal cortex and depression (2022) · cites this paper as [257]

    The Discussion reports that chronic stress impaired both ED set-shifting and reversal learning, and that the mPFC treatment prevented only the set-shifting deficit. But the Figure 4 caption and Experiment 2 identify the infused drugs as α1-, β1-, and β2-adrenergic receptor antagonists, not agonists. The claim reverses the identity of the intervention responsible for the reported effect. (LLM, conf=0.90)

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  • Chronic stress, such as chronic unpredictable stress and repeated restraint stress, produces a deficit in extradimensional set-shifting on the AST in rodents.

    “chronic stress (for example, chronic unpredictable stress (CUS) and repeated restraint stress) has been shown to produce a deficit in ED set-shifting on the AST in rodents (Bondi et al 2008, Fucich et al 2016, Jett & Morilak 2013, Liston et al 2006, Morilak et al 2005)”

    From Prefrontal cortex executive processes affected by stress in health and disease (2018) · cites this paper as Jett & Morilak 2013

  • Blocking α1-adrenergic and β2-adrenergic receptors before each stress session during chronic unpredictable stress protects against detrimental effects of chronic stress on set-shifting capability.

    “blocking α1-adrenergic and β2-adrenergic receptors prior to each stress session during a chronic unpredictable stress treatment protected against the detrimental effects of chronic stress on set-shifting capability (Jett & Morilak 2013).”

    From Prefrontal cortex executive processes affected by stress in health and disease (2018) · cites this paper as Jett & Morilak 2013

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Authors
Jett, J. D., & Morilak, D. A.
Affiliations
The University of Texas at San Antonio Health Science Center (US)
Corresponding author
Morilak, David A
Venue
Neuropsychopharmacology
Published
2012-11-07
Volume
38
Issue
4
Pages
585-595
ISSN
  • 0893-133X (ISSN-L)
  • 1740-634X
OpenAlex
W2072437917
Cited by
41
References
86
Citations by year
2026: 1 · 2025: 2 · 2024: 2 · 2023: 4 · 2021: 3 · 2020: 3 · 2019: 4 · 2018: 2 · 2017: 5 · 2016: 4 · 2015: 4 · 2014: 4 · 2013: 3
FWCI
1.46
Type
journal article
Language
en
Open access
Locations
  • Neuropsychopharmacology (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
National Institute of Mental Health (MH053851, R29MH053851, R01MH053851)
Topics
  • Life Sciences › Neuroscience › Behavioral Neuroscience › Stress Responses and Cortisol
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neurotransmitter Receptor Influence on Behavior
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
Keywords
chronic unpredictable mild stress, medial prefrontal cortex, norepinephrine, adrenergic antagonists, set-shifting, cognitive impairment, stress-related psychiatric disorders
MeSH terms
Adrenergic beta-Antagonists, Animals, Chronic Disease, Cognition, Cognition Disorders, Male, Norepinephrine, Stress, Psychological, Rats, Sprague-Dawley, Prefrontal Cortex, Rats

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