Evidence map›Paper›PMID 34039630›Full record

ArticleJournal of neurology, neurosurgery, and psychiatry2021

Microstructural plasticity in nociceptive pathways after spinal cord injury.

Sreenath P Kyathanahally, Michela Azzarito, Jan Rosner, Vince D Calhoun, Claudia Blaiotta, John Ashburner, Nikolaus Weiskopf, Katja Wiech, Karl Friston, Gabriel Ziegler and 1 more

Open access · hybridAbstract read
In one paragraph

Article in Journal of neurology, neurosurgery, and psychiatry, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed, 2 pooled it
1.6field-weighted citation impact, top 17% 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

6 citing papers in PubMed, 2 syntheses or guidelines pooled it, 15 citations in OpenAlex.

  1. Brain Plasticity in Patients with Spinal Cord Injuries: A Systematic Review.International journal of molecular sciences · 2024
    Pooled it
  2. Pooled it
  3. Review
  4. Central neuropathic pain.Nature reviews. Disease primers · 2023
    Review
  5. Review
  6. Review
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

11 authors at 7 institutions in 4 countries.

Sreenath P Kyathanahally *Spinal Cord Injury Center, University Hospital Balgrist, University of Zurich, Zurich, Switzerland.
Michela Azzarito *Spinal Cord Injury Center, University Hospital Balgrist, University of Zurich, Zurich, Switzerland.
Jan Rosner *Spinal Cord Injury Center, University Hospital Balgrist, University of Zurich, Zurich, Switzerland.ORCID http://orcid.org/0000-0002-1973-1773
Vince D CalhounTri-institutional Center for Translational Research in Neuroimaging and Data Science (TReNDS): Georgia State University, Georgia Institute of Technology, Emory University, Atlanta, Georgia, USA.
Claudia BlaiottaWellcome Centre for Human Neuroimaging, UCL Institute of Neurology, UCL, London, UK.
John AshburnerWellcome Centre for Human Neuroimaging, UCL Institute of Neurology, UCL, London, UK.
Nikolaus WeiskopfNeurophysics, Max-Planck-Institut fur Kognitions- und Neurowissenschaften, Leipzig, Germany.
Katja WiechWellcome Centre for Integrative Neuroimaging (WIN), Nuffield Department of Clinical Neurosciences, University of Oxford, John Radcliffe Hospital, Oxford, UK.
Karl FristonWellcome Centre for Human Neuroimaging, UCL Institute of Neurology, UCL, London, UK.
Gabriel ZieglerGerman Center for Neurodegenerative Disease (DZNE), Magdeburg, Germany.
Patrick FreundSpinal Cord Injury Center, University Hospital Balgrist, University of Zurich, Zurich, Switzerland patrick.freund@balgrist.ch.ORCID http://orcid.org/0000-0002-4851-2246
Wellcome Centre for Human Neuroimaging · GBUniversity of Zurich · CHGeorgia Institute of Technology · USGerman Center for Neurodegenerative Diseases · DEJohn Radcliffe Hospital · GBMax Planck Institute for Human Cognitive and Brain Sciences · DEUniversity of Bern · CH

Funding

Male/Female differences in psychosis and mood disorders:Dynamic imaging-genomic models for characterizing and predicting psychosis and mood dR01MH118695 · NIMH · GEORGIA STATE UNIVERSITY · PI ADALI, TULAY, CALHOUN, VINCE D · 2019 to 2023
$3.8M
Unified multivariate data-driven solutions for static and dynamic brain connectivityR01EB020407 · NIBIB · THE MIND RESEARCH NETWORK · PI ADALI, TULAY, CALHOUN, VINCE D · 2015 to 2018
$2.7M
NIBIB NIH HHS R01 EB020407NIMH NIH HHS R01 MH118695Wellcome Trust
6 · The paper itself

Abstract

objectiveTo track the interplay between (micro-) structural changes along the trajectories of nociceptive pathways and its relation to the presence and intensity of neuropathic pain (NP) after spinal cord injury (SCI).

methodsA quantitative neuroimaging approach employing a multiparametric mapping protocol was used, providing indirect measures of myelination (via contrasts such as magnetisation transfer (MT) saturation, longitudinal relaxation (R1)) and iron content (via effective transverse relaxation rate (R2*)) was used to track microstructural changes within nociceptive pathways. In order to characterise concurrent changes along the entire neuroaxis, a combined brain and spinal cord template embedded in the statistical parametric mapping framework was used. Multivariate source-based morphometry was performed to identify naturally grouped patterns of structural variation between individuals with and without NP after SCI.

resultsIn individuals with NP, lower R1 and MT values are evident in the primary motor cortex and dorsolateral prefrontal cortex, while increases in R2* are evident in the cervical cord, periaqueductal grey (PAG), thalamus and anterior cingulate cortex when compared with pain-free individuals. Lower R1 values in the PAG and greater R2* values in the cervical cord are associated with NP intensity.

conclusionsThe degree of microstructural changes across ascending and descending nociceptive pathways is critically implicated in the maintenance of NP. Tracking maladaptive plasticity unravels the intimate relationships between neurodegenerative and compensatory processes in NP states and may facilitate patient monitoring during therapeutic trials related to pain and neuroregeneration.

Identifiers

PMID34039630
PMCPMC8292587
OpenAlexW3164013352

What OpenQuestion holds

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LicenceCC BY-NC
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.