Evidence map›Paper›PMID 22341563›Full record

ArticlePain2012

Inflammation-induced decrease in voluntary wheel running in mice: a nonreflexive test for evaluating inflammatory pain and analgesia.

Enrique J Cobos, Nader Ghasemlou, Dionéia Araldi, David Segal, Kelly Duong, Clifford J Woolf

Abstract readComparative StudyEvaluation Study
In one paragraph

Article in Pain, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 135 papers.

0numbers the graph read from it
0cells of the map it votes in
135citing papers in PubMed
17.4field-weighted citation impact, top 1% 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

135 citing papers in PubMed, 231 citations in OpenAlex.

  1. Article
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  8. LOXL2 alleviates post-traumatic knee osteoarthritis and pain.Journal of orthopaedic translation · 2025
    Article
  9. Inflammatory pain in mice induces light cycle-dependent effects on sleep architecture.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2025
    Article
  10. Article
  11. Combined pharmacological targeting of CD9Cell reports. Medicine · 2025
    Article
  12. Mimicking opioid analgesia in cortical pain circuits.bioRxiv : the preprint server for biology · 2025
    Article
  13. Review
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Review
  20. Article

75 more citing papers are in PubMed but not listed here.

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

6 authors at 2 institutions in 1 country.

Enrique J CobosProgram in Neurobiology, F.M. Kirby Neurobiology Center, Children's Hospital Boston, Boston, MA 02115, USA Department of Neurobiology, Harvard Medical School, Boston, MA 02115, USA.
Nader Ghasemlou
Dionéia Araldi
David Segal
Kelly Duong
Clifford J Woolf
Boston Children's Hospital · USHarvard University · US

Funding

TRP Channel Mediated Pain CircuitryP01NS072040 · NINDS · BOSTON CHILDREN'S HOSPITAL · PI WOOLF, CLIFFORD J · 2011 to 2015
$6.7M
Neural Plasticity and Inflammatory PainR37NS039518 · NINDS · BOSTON CHILDREN'S HOSPITAL · PI WOOLF, CLIFFORD J · 2011 to 2017
$4.7M
Neural Plasticity and Inflammatory PainR01NS039518 · NINDS · MASSACHUSETTS GENERAL HOSPITAL · PI WOOLF, CLIFFORD J · 2001 to 2010
$4.1M
NINDS NIH HHS 1P01NS072040-01NINDS NIH HHS 5 R01 NS039518-08NINDS NIH HHS P01 NS072040NINDS NIH HHS R01 NS039518NINDS NIH HHS R37 NS039518
6 · The paper itself

Abstract

Inflammatory pain impacts adversely on the quality of life of patients, often resulting in motor disabilities. Therefore, we studied the effect of peripheral inflammation induced by intraplantar administration of complete Freund's adjuvant (CFA) in mice on a particular form of voluntary locomotion, wheel running, as an index of mobility impairment produced by pain. The distance traveled over 1 hour of free access to activity wheels decreased significantly in response to hind paw inflammation, peaking 24 hours after CFA administration. Recovery of voluntary wheel running by day 3 correlated with the ability to support weight on the inflamed limb. Inflammation-induced mechanical hypersensitivity, measured with von Frey hairs, lasted considerably longer than the impaired voluntary wheel running and is not driving; therefore, the change in voluntary behavior. The CFA-induced decrease in voluntary wheel running was dose-dependently reversed by subcutaneous administration of antiinflammatory and analgesic drugs, including naproxen (10-80 mg/kg), ibuprofen (2.5-20mg/kg), diclofenac (1.25-10mg/kg), celecoxib (2.5-20mg/kg), prednisolone (0.62-5mg/kg), and morphine (0.06-0.5mg/kg), all at much lower doses than reported in most rodent models. Furthermore, the doses that induced recovery in voluntary wheel running did not reduce CFA-induced mechanical allodynia, indicating a greater sensitivity of the former as a surrogate measure of inflammatory pain. We conclude that monitoring changes in voluntary wheel running in mice during peripheral inflammation is a simple, observer-independent objective measure of functional changes produced by inflammation, likely more aligned to the global level of pain than reflexive measures, and much more sensitive to analgesic drug effects.

Indexed as

AnalgesiaAnalgesicsAnimalsEdemaInflammationMaleMiceMice, Inbred C57BLMotor ActivityPainPain ManagementPain MeasurementRunningAnalgesics

Identifiers

PMID22341563
PMCPMC3319437
OpenAlexW1979801278

What OpenQuestion holds

Textmetadata
LicenceTDM
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.