Evidence map›Paper›PMID 27650492›Full record

ArticleThe Journal of comparative neurology2017

Motoneuron glutamatergic receptor expression following recovery from cervical spinal hemisection.

Heather M Gransee, Maria A Gonzalez Porras, Wen-Zhi Zhan, Gary C Sieck, Carlos B Mantilla

Open access · greenAbstract read
In one paragraph

Article in The Journal of comparative neurology, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers.

0numbers the graph read from it
0cells of the map it votes in
30citing papers in PubMed
2.3field-weighted citation impact, top 13% 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

30 citing papers in PubMed, 44 citations in OpenAlex.

  1. Article
  2. An update on spinal cord injury and diaphragm neuromotor control.Expert review of respiratory medicine · 2025
    Review
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  10. Mitochondrial adaptations to inactivity in diaphragm muscle fibers.Journal of applied physiology (Bethesda, Md. : 1985) · 2022
    Article
  11. Review
  12. Article
  13. Article
  14. Article
  15. Article
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  18. Spinal cord injury and diaphragm neuromotor control.Expert review of respiratory medicine · 2020
    Review
  19. Review
  20. Article
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

5 authors at 1 institution in 1 country.

Heather M GranseeDepartment of Physiology and Biomedical Engineering, Mayo Clinic, Rochester, Minnesota, 55905.
Maria A Gonzalez PorrasDepartment of Physiology and Biomedical Engineering, Mayo Clinic, Rochester, Minnesota, 55905.
Wen-Zhi ZhanDepartment of Physiology and Biomedical Engineering, Mayo Clinic, Rochester, Minnesota, 55905.
Gary C SieckDepartment of Physiology and Biomedical Engineering, Mayo Clinic, Rochester, Minnesota, 55905.
Carlos B MantillaDepartment of Physiology and Biomedical Engineering, Mayo Clinic, Rochester, Minnesota, 55905.
Mayo Clinic · US

Funding

Recovery of Respiratory Function After Spinal Cord InjuryR01HL096750 · NHLBI · MAYO CLINIC ROCHESTER · PI MANTILLA, CARLOS B, SIECK, GARY C. · 2010 to 2017
$4.9M
Interdisciplinary Training in Lung Physiology and Biomedical EngineeringT32HL105355 · NHLBI · MAYO CLINIC ROCHESTER · PI PRAKASH, Y. S., SIECK, GARY C. · 2012 to 2021
$3.9M
NHLBI NIH HHS R01 HL096750NHLBI NIH HHS T32 HL105355
6 · The paper itself

Abstract

Cervical spinal hemisection at C2 (SH) removes premotor drive to phrenic motoneurons located in segments C3-C5 in rats. Spontaneous recovery of ipsilateral diaphragm muscle activity is associated with increased phrenic motoneuron expression of glutamatergic N-methyl-D-aspartate (NMDA) receptors and decreased expression of α-amino-3-hydroxy-5-methylisoxazole-4-proprionic acid (AMPA) receptors. Glutamatergic receptor expression is regulated by tropomyosin-related kinase receptor subtype B (TrkB) signaling in various neuronal systems, and increased TrkB receptor expression in phrenic motoneurons enhances recovery post-SH. Accordingly, we hypothesize that recovery of ipsilateral diaphragm muscle activity post-SH, whether spontaneous or enhanced by adenoassociated virus (AAV)-mediated upregulation of TrkB receptor expression, is associated with increased expression of glutamatergic NMDA receptors in phrenic motoneurons. Adult male Sprague-Dawley rats underwent diaphragm electromyography electrode implantation and SH surgery. Rats were injected intrapleurally with AAV expressing TrkB or GFP 3 weeks before SH. At 14 days post-SH, the proportion of animals displaying recovery of ipsilateral diaphragm activity increased in AAV-TrkB-treated (9/9) compared with untreated (3/5) or AAV-GFP-treated (4/10; P < 0.027) animals. Phrenic motoneuron NMDA NR1 subunit mRNA expression was approximately fourfold greater in AAV-TrkB- vs. AAV-GFP-treated SH animals (P < 0.004) and in animals displaying recovery vs. those not recovering (P < 0.005). Phrenic motoneuron AMPA glutamate receptor 2 (GluR2) subunit mRNA expression decreased after SH, and, albeit increased in animals displaying recovery vs. those not recovering, levels remained lower than control. We conclude that increased phrenic motoneuron expression of glutamatergic NMDA receptors is associated with spontaneous recovery after SH and enhanced recovery after AAV-TrkB treatment. J. Comp. Neurol. 525:1192-1205, 2017. © 2016 Wiley Periodicals, Inc.

Indexed as

AnimalsDiaphragmDisease Models, AnimalLaser Capture MicrodissectionMaleMotor NeuronsPhrenic NerveRatsRats, Sprague-DawleyReal-Time Polymerase Chain ReactionReceptors, N-Methyl-D-AspartateReceptor, trkBRecovery of FunctionSpinal Cord InjuriesReceptors, N-Methyl-D-AspartateReceptor, trkBdiaphragm muscleneuroplasticityneurotrophinphrenic motoneuronRRID:RGD_5508397RRID:SCR_010038RRID:SCR_014325spinal cord injury

Identifiers

PMID27650492
PMCPMC5258834
OpenAlexW2523599170

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.