Evidence map›Paper›PMID 20536938›Full record

ArticleAnnals of the New York Academy of Sciences2010

Permanent reorganization of Ia afferent synapses on motoneurons after peripheral nerve injuries.

Francisco J Alvarez, Katie L Bullinger, Haley E Titus, Paul Nardelli, Timothy C Cope

Abstract read
In one paragraph

Article in Annals of the New York Academy of Sciences, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 42 papers.

0numbers the graph read from it
0cells of the map it votes in
42citing 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

42 citing papers in PubMed, 67 citations in OpenAlex.

  1. Review
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  7. Structural Preservation Does Not Ensure Function at Sensory Ia-Motoneuron Synapses following Peripheral Nerve Injury and Repair.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2023
    Article
  8. Article
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  10. Review
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  15. Spinal Motor Circuit Synaptic Plasticity after Peripheral Nerve Injury Depends on Microglia Activation and a CCR2 Mechanism.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2019
    Article
  16. Article
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  18. Review
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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

5 authors at 1 institution in 1 country.

Francisco J AlvarezDepartment of Neurosciences, Cell Biology and Physiology, Wright State University, Dayton, Ohio, USA. francisco.alvarez@wright.edu
Katie L Bullinger
Haley E Titus
Paul Nardelli
Timothy C Cope
Wright State University · US

Funding

Synaptic Function: Effects of the Nerve Injury, Repair, and Altered ActivityP01NS057228 · NINDS · WRIGHT STATE UNIVERSITY · PI COPE, TIMOTHY C · 2007 to 2017
$9.1M
DEVELOPMENT OF SYNAPTIC INPUTS ON SPINAL INTERNEURONSR01NS047357 · NINDS · WRIGHT STATE UNIVERSITY · PI ALVAREZ, FRANCISCO J · 2004 to 2025
$6.4M
NINDS NIH HHS P01 NS057228NINDS NIH HHS R01 NS047357
6 · The paper itself

Abstract

After peripheral nerve injuries to a motor nerve, the axons of motoneurons and proprioceptors are disconnected from the periphery and monosynaptic connections from group I afferents and motoneurons become diminished in the spinal cord. Following successful reinnervation in the periphery, motor strength, proprioceptive sensory encoding, and Ia afferent synaptic transmission on motoneurons partially recover. Muscle stretch reflexes, however, never recover and motor behaviors remain uncoordinated. In this review, we summarize recent findings that suggest that lingering motor dysfunction might be in part related to decreased connectivity of Ia afferents centrally. First, sensory afferent synapses retract from lamina IX, causing a permanent relocation of the inputs to more distal locations and significant disconnection from motoneurons. Second, peripheral reconnection between proprioceptive afferents and muscle spindles is imperfect. As a result, a proportion of sensory afferents that retain central connections with motoneurons might not reconnect appropriately in the periphery. A hypothetical model is proposed in which the combined effect of peripheral and central reconnection deficits might explain the failure of muscle stretch to initiate or modulate firing of many homonymous motoneurons.

Indexed as

Afferent PathwaysAnimalsAxonsCatsDendritesMotor NeuronsMuscle, SkeletalNerve RegenerationPeripheral Nervous SystemRatsSensory Receptor CellsSpinal Cord InjuriesSynapsesVesicular Glutamate Transport Protein 1Vesicular Glutamate Transport Protein 1

Identifiers

PMID20536938
PMCPMC2997487
OpenAlexW2150368967

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.