Evidence map›Paper›PMID 26413840›Full record

ArticleJournal of neurotrauma2016

The Impact of Midcervical Contusion Injury on Diaphragm Muscle Function.

Santiago Alvarez-Argote, Heather M Gransee, Juan C Mora, Jessica M Stowe, Amy J Jorgenson, Gary C Sieck, Carlos B Mantilla

Open access · greenAbstract read
In one paragraph

Article in Journal of neurotrauma, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed
2.5field-weighted citation impact, top 11% 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

28 citing papers in PubMed, 44 citations in OpenAlex.

  1. Review
  2. An update on spinal cord injury and diaphragm neuromotor control.Expert review of respiratory medicine · 2025
    Review
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Review
  11. Article
  12. Article
  13. Spinal cord injury and diaphragm neuromotor control.Expert review of respiratory medicine · 2020
    Review
  14. Article
  15. Article
  16. Review
  17. Diaphragm muscle function following midcervical contusion injury in rats.Journal of applied physiology (Bethesda, Md. : 1985) · 2019
    Article
  18. Article
  19. Article
  20. Phrenic motor neuron loss in aged rats.Journal of neurophysiology · 2018
    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

7 authors at 1 institution in 1 country.

Santiago Alvarez-Argote1 Department of Physiology and Biomedical Engineering, Mayo Clinic , Rochester, Minnesota.
Heather M Gransee1 Department of Physiology and Biomedical Engineering, Mayo Clinic , Rochester, Minnesota.
Juan C Mora1 Department of Physiology and Biomedical Engineering, Mayo Clinic , Rochester, Minnesota.
Jessica M Stowe1 Department of Physiology and Biomedical Engineering, Mayo Clinic , Rochester, Minnesota.
Amy J Jorgenson1 Department of Physiology and Biomedical Engineering, Mayo Clinic , Rochester, Minnesota.
Gary C Sieck1 Department of Physiology and Biomedical Engineering, Mayo Clinic , Rochester, Minnesota.
Carlos B Mantilla1 Department of Physiology and Biomedical Engineering, Mayo Clinic , Rochester, Minnesota.
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
NHLBI NIH HHS HL096750NHLBI NIH HHS R01 HL096750
6 · The paper itself

Abstract

Midcervical contusion injuries disrupt descending ipsilateral excitatory bulbospinal projections to phrenic motoneurons, compromising ventilation. We hypothesized that a unilateral contusion injury at C3 versus C5 would differentially impact phrenic activity reflecting more prominent disruption of ipsilateral descending excitatory drive to more caudal segments of the phrenic motor pool with more cranial injuries. Phrenic motoneuron counts and evidence of diaphragm muscle denervation at individual neuromuscular junctions (NMJ) were evaluated at 14 days post-injury after unilateral contusion injury (100 kDynes). Whole body plethysmography and chronic diaphragm EMG were measured before the injury and at 3, 7, and 14 days post-injury. Contusion injuries at either level resulted in a similarly sized cavity. C3 contusion resulted in loss of 39 ± 13% of ipsilateral phrenic motoneurons compared with 13 ± 21% after C5 contusion (p = 0.003). Cervical contusion injuries resulted in diaphragm muscle denervation (C3 contusion: 17 ± 4%; C5 contusion: 7 ± 4%; p = 0.047). The pattern of denervation revealed segmental innervation of the diaphragm muscle, with greater denervation ventrally after C3 contusion and dorsally after C5 contusion. Overall, diaphragm root mean square electromyography activity did not change ipsilaterally after C3 or C5 contusion, but increased contralaterally (∼ 11%) after C3 contusion only on the first day post-injury (p = 0.026). Similarly, there were no significant changes in breathing parameters during eupnea or exposure to hypoxia (10% O2) - hypercapnia (5% CO2) at any time post-injury. Unilateral midcervical contusions minimally impair ventilatory behaviors despite phrenic motoneuron loss and diaphragm muscle denervation.

Indexed as

AnimalsCervical VertebraeContusionsDiaphragmMaleRatsRats, Sprague-DawleySpinal Cord Injurieslevel of injuryneuromuscular junctionphrenic motoneuronspinal cord injuryventilation

Identifiers

PMID26413840
PMCPMC4779319
OpenAlexW2175425446

What OpenQuestion holds

Textmetadata
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.