Evidence map›Paper›PMID 26671215›Full record

ArticleNeurorehabilitation and neural repair2016

Delayed Exercise Is Ineffective at Reversing Aberrant Nociceptive Afferent Plasticity or Neuropathic Pain After Spinal Cord Injury in Rats.

Megan Ryan Detloff, Daniel Quiros-Molina, Amy S Javia, Lekhaj Daggubati, Anthony D Nehlsen, Ali Naqvi, Vinu Ninan, Kirsten N Vannix, Mary-Katharine McMullen, Sheena Amin and 2 more

Open access · bronzeAbstract read
In one paragraph

Article in Neurorehabilitation and neural repair, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers.

0numbers the graph read from it
0cells of the map it votes in
31citing papers in PubMed
2.8field-weighted citation impact, top 9% 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

31 citing papers in PubMed, 56 citations in OpenAlex.

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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

12 authors at 2 institutions in 1 country.

Megan Ryan DetloffDrexel University College of Medicine, Philadelphia, PA, USA mdetloff@drexelmed.edu.
Daniel Quiros-MolinaDrexel University College of Medicine, Philadelphia, PA, USA.
Amy S JaviaDrexel University College of Medicine, Philadelphia, PA, USA.
Lekhaj DaggubatiDrexel University College of Medicine, Philadelphia, PA, USA.
Anthony D NehlsenDrexel University College of Medicine, Philadelphia, PA, USA.
Ali NaqviDrexel University College of Medicine, Philadelphia, PA, USA.
Vinu NinanDrexel University College of Medicine, Philadelphia, PA, USA.
Kirsten N VannixDrexel University College of Medicine, Philadelphia, PA, USA.
Mary-Katharine McMullenDrexel University College of Medicine, Philadelphia, PA, USA.
Sheena AminDrexel University College of Medicine, Philadelphia, PA, USA.
Patrick D GanzerUniversity of Texas at Dallas, Richardson, TX, USA.
John D HouléDrexel University College of Medicine, Philadelphia, PA, USA.
Drexel University · USThe University of Texas at Dallas · US

Funding

SurgeryP01NS055976 · NINDS · DREXEL UNIVERSITY · PI HOULE, JOHN D. · 2007 to 2017
$12.3M
NINDS NIH HHS P01 NS055976
6 · The paper itself

Abstract

Neuropathic pain is a debilitating consequence of spinal cord injury (SCI) that correlates with sensory fiber sprouting. Recent data indicate that exercise initiated early after SCI prevents the development of allodynia and modulated nociceptive afferent plasticity. This study determined if delaying exercise intervention until pain is detected would similarly ameliorate established SCI-induced pain. Adult, female Sprague-Dawley rats with a C5 unilateral contusion were separated into SCI allodynic and SCI non-allodynic cohorts at 14 or 28 days postinjury when half of each group began exercising on automated running wheels. Allodynia, assessed by von Frey testing, was not ameliorated by exercise. Furthermore, rats that began exercise with no allodynia developed paw hypersensitivity within 2 weeks. At the initiation of exercise, the SCI Allodynia group displayed marked overlap of peptidergic and non-peptidergic nociceptive afferents in the C7 and L5 dorsal horn, while the SCI No Allodynia group had scant overlap. At the end of 5 weeks of exercise both the SCI Allodynia and SCI No Allodynia groups had extensive overlap of the 2 c-fiber types. Our findings show that exercise therapy initiated at early stages of allodynia is ineffective at attenuating neuropathic pain, but rather that it induces allodynia-aberrant afferent plasticity in previously pain-free rats. These data, combined with our previous results, suggest that there is a critical therapeutic window when exercise therapy may be effective at treating SCI-induced allodynia and that there are postinjury periods when exercise can be deleterious.

Indexed as

Afferent PathwaysAnimalsCalcitonin Gene-Related PeptideCholera ToxinDisease Models, AnimalExercise TherapyFemaleFunctional LateralityGlycoproteinsHyperalgesiaLectinsMotor ActivityNeuralgiaNeuronal PlasticityPain MeasurementPhysical Conditioning, AnimalCalcitonin Gene-Related PeptideCholera ToxinGlycoproteinsLectinsVcan protein, ratVersicanscentral painmechanical allodynianeuroplasticitynociceptorrehabilitationspinal cord injury

Identifiers

PMID26671215
PMCPMC4907889
OpenAlexW2202852802

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.