Cited by 35Neuroinflammation and Neurodegeneration MechanismsThermal Regulation in MedicineTryptophan and brain disorders

A neurotoxic regimen of methamphetamine exacerbates the febrile and neuroinflammatory response to a subsequent peripheral immune stimulus

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Buchanan, Jessica B, Sparkman, Nathan L, Johnson, Rodney W·2010·Journal of Neuroinflammation

Abstract

Methamphetamine (MA) use is associated with activation of microglia and, at high doses, can induce neurotoxicity. Given the changes in the neuroinflammatory environment associated with MA, we investigated whether MA administration would interfere with the thermoregulatory and neuroinflammatory response to a subsequent peripheral immune stimulus. C57BL6/J mice were given four i.p. injections of either 5 mg/kg MA or saline at two hour intervals. Twenty-four hours following the first MA injection, mice were given 100 μg/kg LPS or saline i.p. and blood and brains were collected. Here we report that mice exposed to MA developed higher fevers in response to LPS than did those given LPS alone. MA also exacerbated the LPS-induced increase in central cytokine mRNA. MA alone increased microglial Iba1 expression and expression was further increased when mice were exposed to both MA and LPS, suggesting that MA not only activated microglia but also influenced their response to a peripheral immune stimulus. Taken together, these data show that MA administration exacerbates the normal central immune response, most likely by altering microglia.

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Authors
Buchanan, J. B., Sparkman, N. L., & Johnson, R. W.
Affiliations
University of Illinois Urbana-Champaign (US)
Corresponding author
Buchanan, Jessica B
Venue
Journal of Neuroinflammation
Published
2010
Volume
7
Issue
1
Pages
82
ISSN
1742-2094 (ISSN-L)
OpenAlex
W2154092635
Cited by
35
References
41
Citations by year
2025: 2 · 2024: 3 · 2023: 1 · 2022: 1 · 2021: 3 · 2020: 1 · 2019: 2 · 2018: 9 · 2017: 1 · 2016: 2 · 2015: 3 · 2014: 1 · 2013: 2 · 2012: 1
FWCI
1.16
Type
journal article
Language
en
Open access
Licence
cc-by
Locations
  • Journal of Neuroinflammation (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion)
Funders
  • National Institutes of Health
  • National Institute on Drug Abuse (R21DA024443, DA024443)
Topics
  • Life Sciences › Neuroscience › Neurology › Neuroinflammation and Neurodegeneration Mechanisms
  • Health Sciences › Medicine › Critical Care and Intensive Care Medicine › Thermal Regulation in Medicine
  • Life Sciences › Neuroscience › Biological Psychiatry › Tryptophan and brain disorders
Keywords
methamphetamine, neuroinflammation, microglial activation, fever, lipopolysaccharide, cytokine expression, thermoregulation, neurotoxicity, Iba1, brain immune response, C57BL/6J mice
MeSH terms
Animals, Body Temperature, Calcium-Binding Proteins, Fever, Lipopolysaccharides, Male, Methamphetamine, Mice, Inbred C57BL, Microfilament Proteins, Motor Activity, RNA, Messenger, Cytokines, Microglia, Mice

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