Evidence map›Paper›PMID 19150465›Full record

ReviewBrain research reviews2009

Peripheral mechanisms of pain and analgesia.

Christoph Stein, J David Clark, Uhtaek Oh, Michael R Vasko, George L Wilcox, Aaron C Overland, Todd W Vanderah, Robert H Spencer

Registry-linked trialOpen access · greenAbstract readReview
In one paragraph

Review in Brain research reviews, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT07303998 (Feasibility and Effect of Remotely Supervised Transcranial Direct Current Stimulation With Chair Yoga for Chronic Knee Pain Management in Older Adults With Alzheimer's Disease and Related Dementias.), which is not on this map. Cited by 123 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
123citing papers in PubMed, 1 pooled it
12.3field-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.

NCT07303998 narecruitingnot on this mapstarted 2025, after this paper: background citation

Feasibility and Effect of Remotely Supervised Transcranial Direct Current Stimulation With Chair Yoga for Chronic Knee Pain Management in Older Adults With Alzheimer's Disease and Related Dementias.

TypeinterventionalSponsorUniversity of ArizonaRan2025 to 2026Enrolled40ConditionsAlzheimer&Amp, #39, s Disease, Other DementiasArmsActive tDCS paired with active online chair yoga
3 · Its place in the literature

Who cites it

123 citing papers in PubMed, 1 synthesis or guideline pooled it, 265 citations in OpenAlex.

  1. Prolactin and pain of endometriosis.Pharmacology & therapeutics · 2023
    Pooled it
  2. Effect ofNutrients · 2026
    Trial
  3. Trial
  4. Trial
  5. Direct cellular contact byScience advances · 2026
    Article
  6. Review
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  15. Review
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  18. Peripheral Nervous System Pain Modulation.Current neuropharmacology · 2024
    Article
  19. Article
  20. Review

63 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

8 authors at 6 institutions in 3 countries.

Christoph SteinDepartment of Anesthesiology and Critical Care Medicine, Charité Campus Benjamin Franklin, Freie Universität Berlin, Germany.
J David Clark
Uhtaek Oh
Michael R Vasko
George L Wilcox
Aaron C Overland
Todd W Vanderah
Robert H Spencer
University of Minnesota · USFreie Universität Berlin · DEIndiana University · USSeoul National University · KRStanford University · USUniversity of Arizona · US

Funding

NEUROSCIENCE TRAINING IN DRUG ABUSE RESEARCHT32DA007234 · NIDA · UNIVERSITY OF MINNESOTA TWIN CITIES · PI Paul G Mermelstein, Jocelyn M Richard · 1986 to 2026
$10.9M
Mechanisms of Opioid Receptor InteractionsR01DA015438 · NIDA · UNIVERSITY OF MINNESOTA TWIN CITIES · PI WILCOX, GEORGE LATIMER · 2004 to 2014
$3.3M
Complement System Modulation of Nociception and Inflammation after IncisionR01GM079126 · NIGMS · PALO ALTO VETERANS INSTIT FOR RESEARCH · PI CLARK, DAVID J. · 2008 to 2011
$1.4M
Lipase Products Mediate Sensitization of Sensory NeuronsR01NS048565 · NINDS · INDIANA UNIV-PURDUE UNIV AT INDIANAPOLIS · PI VASKO, MICHAEL R · 2005 to 2008
$1.4M
Genetic Determinants of Opioid-Induced HyperalgesiaR01DA021332 · NIDA · PALO ALTO VETERANS INSTIT FOR RESEARCH · PI CLARK, DAVID J. · 2007 to 2011
$1.2M
NIDA NIH HHS DA021332NIDA NIH HHS R01 DA015438NIDA NIH HHS R01 DA021332NIDA NIH HHS R01 DA 15438NIDA NIH HHS T32 DA007234NIDA NIH HHS T32 DA07234-20NIGMS NIH HHS R01 GM079126NINDS NIH HHS NS048565NINDS NIH HHS R01 NS048565
6 · The paper itself

Abstract

This review summarizes recent findings on peripheral mechanisms underlying the generation and inhibition of pain. The focus is on events occurring in peripheral injured tissues that lead to the sensitization and excitation of primary afferent neurons, and on the modulation of such mechanisms. Primary afferent neurons are of particular interest from a therapeutic perspective because they are the initial generator of noxious impulses traveling towards relay stations in the spinal cord and the brain. Thus, if one finds ways to inhibit the sensitization and/or excitation of peripheral sensory neurons, subsequent central events such as wind-up, sensitization and plasticity may be prevented. Most importantly, if agents are found that selectively modulate primary afferent function and do not cross the blood-brain-barrier, centrally mediated untoward side effects of conventional analgesics (e.g. opioids, anticonvulsants) may be avoided. This article begins with the peripheral actions of opioids, turns to a discussion of the effects of adrenergic co-adjuvants, and then moves on to a discussion of pro-inflammatory mechanisms focusing on TRP channels and nerve growth factor, their signaling pathways and arising therapeutic perspectives.

Indexed as

Adrenergic AgonistsAnalgesicsAnalgesics, OpioidAnimalsGanglia, SpinalHumansInflammationNerve Growth FactorNociceptorsPainSensory Receptor CellsTransient Receptor Potential ChannelsAdrenergic AgonistsAnalgesicsAnalgesics, OpioidNerve Growth FactorTransient Receptor Potential Channels

Identifiers

PMID19150465
PMCPMC2730351
OpenAlexW2052033071

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

Registered trials

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.