Evidence map›Paper›PMID 26070658›Full record

ArticleNeurobiology of learning and memory2015

Sex differences in a Murine Model of Complex Regional Pain Syndrome.

Maral Tajerian, Peyman Sahbaie, Yuan Sun, David Leu, Hsun Yu Yang, Wenwu Li, Ting Ting Huang, Wade Kingery, J David Clark

Open access · greenAbstract read
In one paragraph

Article in Neurobiology of learning and memory, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 42 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
42citing papers in PubMed, 1 pooled it
5.9field-weighted citation impact, top 4% 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

42 citing papers in PubMed, 1 synthesis or guideline pooled it, 61 citations in OpenAlex.

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  12. Biomedicines · 2022
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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

9 authors at 2 institutions in 1 country.

Maral TajerianVeterans Affairs Palo Alto Health Care System, Palo Alto, CA, United States; Department of Anesthesiology, Stanford University School of Medicine, Stanford, CA, United States; Palo Alto Institute of Research and Education, Palo Alto, CA, United States. Electronic address: maral@stanford.edu.
Peyman SahbaieVeterans Affairs Palo Alto Health Care System, Palo Alto, CA, United States; Department of Anesthesiology, Stanford University School of Medicine, Stanford, CA, United States; Palo Alto Institute of Research and Education, Palo Alto, CA, United States.
Yuan SunVeterans Affairs Palo Alto Health Care System, Palo Alto, CA, United States; Palo Alto Institute of Research and Education, Palo Alto, CA, United States.
David LeuPalo Alto Institute of Research and Education, Palo Alto, CA, United States; Department of Neurology and Neurological Sciences, Stanford University School of Medicine, Stanford, CA, United States.
Hsun Yu YangPalo Alto Institute of Research and Education, Palo Alto, CA, United States; Department of Neurology and Neurological Sciences, Stanford University School of Medicine, Stanford, CA, United States.
Wenwu LiVeterans Affairs Palo Alto Health Care System, Palo Alto, CA, United States; Department of Anesthesiology, Stanford University School of Medicine, Stanford, CA, United States; Palo Alto Institute of Research and Education, Palo Alto, CA, United States.
Ting Ting HuangPalo Alto Institute of Research and Education, Palo Alto, CA, United States; Geriatrics Research Education and Clinical Center, Veterans Affairs Palo Alto Health Care System, Palo Alto, CA, United States; Department of Neurology and Neurological Sciences, Stanford University School of Medicine, Stanford, CA, United States.
Wade KingeryPhysical Medicine and Rehabilitation Service, Veterans Affairs Palo Alto Health Care System, Palo Alto, CA, United States.
J David ClarkVeterans Affairs Palo Alto Health Care System, Palo Alto, CA, United States; Department of Anesthesiology, Stanford University School of Medicine, Stanford, CA, United States; Palo Alto Institute of Research and Education, Palo Alto, CA, United States.
VA Palo Alto Health Care System · USPalo Alto University · US

Funding

Mechanisms of Neuroinflammation after FractureR01NS072168 · NINDS · PALO ALTO VETERANS INSTIT FOR RESEARCH · PI KINGERY, WADE S · 2011 to 2014
$962k
NINDS NIH HHS R01 NS072168
6 · The paper itself

Abstract

Complex Regional Pain Syndrome (CRPS) is a major cause of chronic pain after surgery or trauma to the limbs. Despite evidence showing that the prevalence and severity of many forms of chronic pain, including CRPS, differ between males and females, laboratory studies on sex-related differences in animal models of CRPS are not available, and the impact of sex on the transition from acute to chronic CRPS pain and disability are unexplored. Here we make use of a tibia fracture/cast mouse model that recapitulates the nociceptive, functional, vascular, trophic, inflammatory and immune aspects of CRPS. Our aim is to describe the chronic time course of nociceptive, motor and memory changes associated with fracture/cast in male and female mice, in addition to exploring their underlying spinal mechanisms. Our behavioral data shows that, compared to males, female mice display lower nociceptive thresholds following fracture in the absence of any differences in ongoing or spontaneous pain. Furthermore, female mice show exaggerated signs of motor dysfunction, deficits in fear memory, and latent sensitization that manifests long after the normalization of nociceptive thresholds. Our biochemical data show differences in the spinal cord levels of the glutamate receptor NR2b, suggesting sex differences in mechanisms of central sensitization that could account for differences in duration and severity of CRPS symptoms between the two groups.

Indexed as

AnimalsBehavior, AnimalCentral Nervous System SensitizationComplex Regional Pain SyndromesDisease Models, AnimalFearFemaleMaleMemory DisordersMiceMice, Inbred C57BLMotor DisordersPain ThresholdReceptors, N-Methyl-D-AspartateSex FactorsSpinal CordNR2B NMDA receptorReceptors, N-Methyl-D-AspartateCentral sensitizationChronic painComplex regional pain syndromePain-related memory deficitsSex differences in pain

Identifiers

PMID26070658
PMCPMC4530062
OpenAlexW657322800

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.