Evidence map›Paper›PMID 22574283›Full record

ArticleBrain and behavior2012

Immunofluorescent spectral analysis reveals the intrathecal cannabinoid agonist, AM1241, produces spinal anti-inflammatory cytokine responses in neuropathic rats exhibiting relief from allodynia.

Jenny L Wilkerson, Katherine R Gentry, Ellen C Dengler, James A Wallace, Audra A Kerwin, Megan N Kuhn, Alexander M Zvonok, Ganesh A Thakur, Alexandros Makriyannis, Erin D Milligan

Open access · goldAbstract read
In one paragraph

Article in Brain and behavior, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 37 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
37citing papers in PubMed, 1 pooled it
2.5field-weighted citation impact, top 11% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

37 citing papers in PubMed, 1 synthesis or guideline pooled it, 52 citations in OpenAlex.

  1. The Effects of Cannabinoids on Ischemic Stroke-Associated Neuroinflammation: A Systematic Review.Journal of neuroimmune pharmacology : the official journal of the Society on NeuroImmune Pharmacology · 2025
    Pooled it
  2. Article
  3. Cannabinoid CBBritish journal of pharmacology · 2025
    Review
  4. Review
  5. Article
  6. Microglial Cannabinoid CBInternational journal of molecular sciences · 2023
    Review
  7. Article
  8. Article
  9. Article
  10. Review
  11. Article
  12. Review
  13. Article
  14. Article
  15. Article
  16. Article
  17. The Endogenous Cannabinoid System: A Budding Source of Targets for Treating Inflammatory and Neuropathic Pain.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2018
    Review
  18. Article
  19. Review
  20. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

10 authors at 2 institutions in 1 country.

Jenny L Wilkerson
Katherine R Gentry
Ellen C Dengler
James A Wallace
Audra A Kerwin
Megan N Kuhn
Alexander M Zvonok
Ganesh A Thakur
Alexandros Makriyannis
Erin D Milligan
University of New Mexico · USNortheastern University · US

Funding

UNM Initiative to Maximize Student Diversity (IMSD)R25GM060201 · NIGMS · UNIVERSITY OF NEW MEXICO · PI WERNER-WASHBURNE, MARGRET C. · 2000 to 2017
$9.9M
Spinal Neuroimmune Mechanisms Underlying IL-10 Gene Therapy for Pain ControlR01DA018156 · NIDA · UNIVERSITY OF NEW MEXICO HEALTH SCIS CTR · PI MILLIGAN, ERIN DAMITA · 2004 to 2014
$3.3M
NIDA NIH HHS R01 DA018156NIGMS NIH HHS R25 GM060201
6 · The paper itself

Abstract

During pathological pain, the actions of the endocannabinoid system, including the cannabinoid 2 receptor (CB(2)R), leads to effective anti-allodynia and modifies a variety of spinal microglial and astrocyte responses. Here, following spinal administration of the CB(2)R compound, AM1241, we examined immunoreactive alterations in markers for activated p38 mitogen-activated protein kinase, interleukin-1β (IL-1β), the anti-inflammatory cytokine, interleukin-10 (IL-10) as well as degradative endocannabinoid enzymes, and markers for altered glial responses in neuropathic rats. In these studies, the dorsal horn of the spinal cord and dorsal root ganglia were examined. AM1241 produced profound anti-allodynia with corresponding immunoreactive levels of p38 mitogen-activated kinase, IL-1β, IL-10, the endocannabinoid enzyme monoacylglycerol lipase, and astrocyte activation markers that were similar to nonneuropathic controls. In contrast, spinal AM1241 did not suppress the increased microglial responses observed in neuropathic rats. The differences in fluorescent markers were determined within discrete anatomical regions by applying spectral analysis methods, which virtually eliminated nonspecific signal during the quantification of specific immunofluorescent intensity. These data reveal expression profiles that support the actions of intrathecal AM1241 control pathological pain through anti-inflammatory mechanisms by modulating critical glial factors, and additionally decrease expression levels of endocannabinoid degradative enzymes.

Indexed as

CCIDRGMAGLpainparaffin immunohistochemistry

Identifiers

PMID22574283
PMCPMC3345359
OpenAlexW1616061190

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.