Cited by 236Anesthesia and Neurotoxicity ResearchNeuroinflammation and Neurodegeneration MechanismsIntensive Care Unit Cognitive Disorders

Intracisternal Interleukin-1 Receptor Antagonist Prevents Postoperative Cognitive Decline and Neuroinflammatory Response in Aged Rats

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Barrientos, Ruth M., Hein, Amy M., Frank, Matthew G., Watkins, Linda R., Maier, Steven F.·2012·The Journal of Neuroscience

Abstract

To investigate the role of the pro-inflammatory cytokine interleukin-1β (IL-1β) in postoperative cognitive dysfunction (POCD) in aged rats, we used laparotomy to mimic human abdominal surgery in adult (3 months) and aged (24 months) F344/BN rats. We demonstrated that memory consolidation of the hippocampal-dependent contextual fear-conditioning task is significantly impaired in aged but not young rats 4 d after surgery. Hippocampal-independent auditory-cued fear memory was not disrupted by laparotomy in either age group. The hippocampal-dependent memory impairment was paralleled by elevations of IL-1β in the hippocampus of aged animals 1 and 4 d after surgery. These findings support our substantial line of previous research showing that aged animals are more vulnerable to cognitive decline after a peripheral immune challenge. In addition, we demonstrated that a single intracisternal administration of interleukin-1 receptor antagonist (IL-1RA; 112 μg) at the time of surgery was sufficient to block both the behavioral deficit and the neuroinflammatory response. Injecting the same dose of IL-1RA peripherally failed to have a protective effect. These data provide strong support for the specific role of central, not peripheral, IL-1β in POCD. Furthermore, the long-lasting presence of IL-1RA in the brain (4 d) compared with in the blood (<24 h) underscores the value of intracisternal administration of IL-1RA for therapeutic purposes.

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Crossref · 10.1523/jneurosci.2173-12.2012

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  • Intracisternal IL-1 receptor antagonist attenuated the laparotomy-induced hippocampal IL-1β and reversed memory deficits.

    “Moreover, intracisternal IL-1 receptor antagonist attenuated the laparotomy-induced hippocampal IL-1β and reversed memory deficits, further highlighting the exaggerated neuroinflammatory response to a peripheral challenge (Barrientos et al, 2012).”

    From Microglia Priming with Aging and Stress (2017) · cites this paper as Barrientos et al, 2012

  • Aged but not young adult rats displayed memory impairments and elevated hippocampal IL-1β levels 4 days after laparotomy.

    “In rodent models, aged but not young adult rats displayed memory impairments and elevated hippocampal IL-1β levels 4 days after laparotomy (Barrientos et al, 2012).”

    From Microglia Priming with Aging and Stress (2017) · cites this paper as Barrientos et al, 2012

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Authors
Barrientos, R. M., Hein, A. M., Frank, M. G., Watkins, L. R., & Maier, S. F.
Affiliations
University of Colorado Boulder (US)
Venue
The Journal of Neuroscience
Published
2012-10-17
Volume
32
Issue
42
Pages
14641-14648
ISSN
  • 0270-6474 (ISSN-L)
  • 1529-2401
OpenAlex
W2010036720
Cited by
235
References
32
Citations by year
2026: 6 · 2025: 9 · 2024: 17 · 2023: 17 · 2022: 23 · 2021: 25 · 2020: 23 · 2019: 19 · 2018: 17 · 2017: 16 · 2016: 21 · 2015: 13 · 2014: 15 · 2013: 13 · 2012: 1
FWCI
4.53
Type
journal article
Language
en
Open access
Locations
  • Journal of Neuroscience (publishedVersion, cc-by-nc-sa)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
Funders
National Institute on Aging (R01AG028271)
Topics
  • Life Sciences › Neuroscience › Developmental Neuroscience › Anesthesia and Neurotoxicity Research
  • Life Sciences › Neuroscience › Neurology › Neuroinflammation and Neurodegeneration Mechanisms
  • Health Sciences › Medicine › Critical Care and Intensive Care Medicine › Intensive Care Unit Cognitive Disorders
Keywords
IL-1β, interleukin-1 receptor antagonist, postoperative cognitive dysfunction, neuroinflammation, aging, hippocampal-dependent memory, contextual fear conditioning, abdominal surgery, intracisternal administration, inflammatory cytokines, neuroprotection
MeSH terms
Aging, Animals, Cisterna Magna, Cognition Disorders, Humans, Injections, Intraventricular, Male, Postoperative Complications, Rats, Inbred BN, Rats, Inbred F344, Receptors, Interleukin-1, Inflammation Mediators, Rats, Interleukin-1beta, Interleukin 1 Receptor Antagonist Protein

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