Cited by 85Neurotransmitter Receptor Influence on BehaviorNeuroscience and Neuropharmacology ResearchNeural and Behavioral Psychology Studies

The alpha-1 adrenergic agonist, cirazoline, impairs spatial working memory performance in aged monkeys

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Arnsten, A.F.T., Jentsch, J.D.·1997·Pharmacology Biochemistry and Behavior

Abstract

The alpha-1 adrenergic agonist, cirazoline, was examined for effects on spatial working memory performance in aged rhesus monkeys. Cirazoline has additional high affinity for imidazoline receptors and has good brain penetrance when administered systemically. Spatial working memory was assessed using the variable delayed response task, a test dependent upon prefrontal cortical function in monkeys. Low doses of cirazoline (0.00001-0.001 mg/kg) impaired delayed response performance significantly. This impairment did not appear to result from nonspecific changes in behavior, because cirazoline had no significant effect on performance of control trials where the delay was "0" s, and had no significant effect on behavioral ratings. Impairment was reversed by pretreatment with the alpha-1 adrenergic antagonist, prazosin, consistent with drug actions at alpha-1 adrenergic receptors. In contrast, preliminary data suggest that higher cirazoline doses (0.001-0.01 mg/kg) occasionally produced improved performance that was not reversed by prazosin, but rather, by the imidazoline/alpha-2 adrenergic antagonist, idazoxan. The finding that alpha-1 adrenergic receptor stimulation impairs spatial working memory performance complements previous research demonstrating that alpha-2 adrenergic receptor stimulation improves working memory, and suggests that norepinephrine may have opposing actions at alpha-1 vs. alpha-2 receptors in the prefrontal cortex as it does in the hypothalamus and thalamus.

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  • Systemic administration of an α1 agonist that crosses the blood brain barrier impairs working memory performance, while administration of an α1 antagonist, e.g., prazosin, can protect working memory performance during stress.

    “Systemic administration of an α1 agonist that crosses the blood brain barrier also impairs working memory performance, while administration of an α1 antagonist, e.g., prazosin, can protect working memory performance during stress (37,50,51).”

    From Catecholamine Influences on Dorsolateral Prefrontal Cortical Networks (2011) · cites this paper as [50]

    The Drug Administration and Results sections report systemic cirazoline treatment in aged monkeys, impaired spatial working memory, and reversal of that impairment by prazosin (page numbers unavailable). The Discussion proposes that α1 mechanisms may contribute to cognitive impairment during stress, but the paper does not show that prazosin protects working memory during stress. It describes cirazoline's brain penetrance as purported rather than directly demonstrating it. (LLM, conf=0.88)

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Research works printed but not linked: 4

  1. Arnsten, A. F. T.; Lin, C. H.; van Dyck, C. H.; Stanhope, K. J.: The effects of 5-HT3 receptor antagonists on cognitive perfor- mance in aged monkeys. Neurobiol. Aging; 18:21-28; 1997.
  2. Lapin, B. A.; Krilova, R. I.; Cherkovich, G. M.; Asanov, N. S.: Observations from Sukhumi. In: Bowden, D. M., ed. Aging in nonhuman primates. New York: van Nostrand Reinhold Co.; 1979:14-37.
  3. Murphy, B. L.; Arnsten, A. F. T.; Goldman-Rakic, P. S.; Roth, R. H.: Increased dopamine turnover in the prefrontal cortex impairs spatial working memory performance in rats and mon- keys. Proc. Natl. Acad. Sci. USA 93:1325-1329; 1996.
  4. Murphy, B. L.; Arnsten, A. F. T.; Jentsch, J. D.; Roth, R. H.: (+)HA966 and clonidine prevent FG7142-induced increases in prefrontal cortical dopamine turnover and block FG7142- induced impairments in spatial working memory in rats and mon- keys. J. Neurosci.; 16:7768-7775; 1996.

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Authors
Arnsten, A. F. T., & Jentsch, J. D.
Affiliations
Yale University (US)
Corresponding author
Arnsten, A.F.T.
Venue
Pharmacology Biochemistry and Behavior
Publisher
Elsevier BV
Published
1997-09
Volume
58
Issue
1
Pages
55-59
ISSN
0091-3057 (ISSN-L)
OpenAlex
W2118090572
Cited by
85
References
4
Citations by year
2026: 1 · 2024: 1 · 2023: 3 · 2021: 4 · 2020: 2 · 2019: 3 · 2018: 3 · 2017: 5 · 2016: 6 · 2015: 1 · 2014: 6 · 2013: 2 · 2012: 4
FWCI
1.84
Type
journal article
Language
en
Open access
Locations
  • Pharmacology Biochemistry and Behavior (publishedVersion, cc-by-nc-nd)
  • PubMed (publishedVersion)
Funders
National Institute on Aging (AG06036)
Topics
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neurotransmitter Receptor Influence on Behavior
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Neural and Behavioral Psychology Studies
Keywords
cirazoline, alpha1-adrenoceptors, spatial working memory, aging, rhesus monkeys, prazosin, idazoxan, imidazoline receptors, alpha2-adrenoceptors, norepinephrine, prefrontal cortex, cognitive impairment
MeSH terms
Adrenergic alpha-Agonists, Aging, Animals, Cognition, Depression, Chemical, Dose-Response Relationship, Drug, Female, Imidazoles, Macaca mulatta, Memory, Short-Term, Space Perception, Idazoxan, Adrenergic alpha-1 Receptor Agonists, Adrenergic alpha-2 Receptor Agonists

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