Evidence map›Paper›PMID 23176637›Full record

ArticleJournal of neurotrauma2012

Degeneration of phrenic motor neurons induces long-term diaphragm deficits following mid-cervical spinal contusion in mice.

Charles Nicaise, Rajarshi Putatunda, Tamara J Hala, Kathleen A Regan, David M Frank, Jean-Pierre Brion, Karelle Leroy, Roland Pochet, Megan C Wright, Angelo C Lepore

Abstract read
In one paragraph

Article in Journal of neurotrauma, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 48 papers.

0numbers the graph read from it
0cells of the map it votes in
48citing papers in PubMed
2.0field-weighted citation impact, top 14% 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

48 citing papers in PubMed, 72 citations in OpenAlex.

  1. An update on spinal cord injury and diaphragm neuromotor control.Expert review of respiratory medicine · 2025
    Review
  2. Article
  3. Article
  4. Article
  5. Review
  6. Review
  7. Neuro-respiratory pathology in spinocerebellar ataxia.Journal of the neurological sciences · 2022
    Review
  8. Review
  9. SV2A PET Imaging Is a Noninvasive Marker for the Detection of Spinal Damage in Experimental Models of Spinal Cord Injury.Journal of nuclear medicine : official publication, Society of Nuclear Medicine · 2022
    Article
  10. Review
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Review
  17. Article
  18. Spinal cord injury and diaphragm neuromotor control.Expert review of respiratory medicine · 2020
    Review
  19. Article
  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

10 authors at 1 institution in 1 country.

Charles NicaiseDepartment of Neuroscience, Farber Institute for Neurosciences, Thomas Jefferson University Medical College, Philadelphia, Pennsylvania, USA.
Rajarshi Putatunda
Tamara J Hala
Kathleen A Regan
David M Frank
Jean-Pierre Brion
Karelle Leroy
Roland Pochet
Megan C Wright
Angelo C Lepore
Arcadia University · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

A primary cause of morbidity and mortality following cervical spinal cord injury (SCI) is respiratory compromise, regardless of the level of trauma. In particular, SCI at mid-cervical regions targets degeneration of both descending bulbospinal respiratory axons and cell bodies of phrenic motor neurons, resulting in deficits in the function of the diaphragm, the primary muscle of inspiration. Contusion-type trauma to the cervical spinal cord is one of the most common forms of human SCI; however, few studies have evaluated mid-cervical contusion in animal models or characterized consequent histopathological and functional effects of degeneration of phrenic motor neuron-diaphragm circuitry. We have generated a mouse model of cervical contusion SCI that unilaterally targets both C4 and C5 levels, the location of the phrenic motor neuron pool, and have examined histological and functional outcomes for up to 6 weeks post-injury. We report that phrenic motor neuron loss in cervical spinal cord, phrenic nerve axonal degeneration, and denervation at diaphragm neuromuscular junctions (NMJ) resulted in compromised ipsilateral diaphragm function, as demonstrated by persistent reduction in diaphragm compound muscle action potential amplitudes following phrenic nerve stimulation and abnormalities in spontaneous diaphragm electromyography (EMG) recordings. This injury paradigm is reproducible, does not require ventilatory assistance, and provides proof-of-principle that generation of unilateral cervical contusion is a feasible strategy for modeling diaphragmatic/respiratory deficits in mice. This study and its accompanying analyses pave the way for using transgenic mouse technology to explore the function of specific genes in the pathophysiology of phrenic motor neuron degeneration and respiratory dysfunction following cervical SCI.

Indexed as

Action PotentialsAlgorithmsAnimalsAxonsBrainCell CountCervical VertebraeCholera ToxinContusionsDiaphragmElectromyographyFluorescent DyesMaleMiceMice, Inbred C57BLMotor NeuronsCholera ToxinFluorescent Dyes

Identifiers

PMID23176637
PMCPMC3521144
OpenAlexW2035729965

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.