Evidence map›Paper›PMID 17920131›Full record

ReviewBrain research reviews2008

Spontaneous rhythmic activity in early chick spinal cord influences distinct motor axon pathfinding decisions.

M Gartz Hanson, Louise D Milner, Lynn T Landmesser

Open access · greenAbstract readReview
In one paragraph

Review in Brain research reviews, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 44 papers.

0numbers the graph read from it
0cells of the map it votes in
44citing papers in PubMed
2.9field-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

44 citing papers in PubMed, 122 citations in OpenAlex.

  1. Article
  2. Electrical Synapses Mediate Embryonic Hyperactivity in a Zebrafish Model of Fragile X Syndrome.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2024
    Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Spontaneous Afferent Activity Carves Olfactory Circuits.Frontiers in cellular neuroscience · 2021
    Article
  8. Review
  9. Article
  10. Article
  11. Review
  12. Persistent Sodium Current Drives Excitability of Immature Renshaw Cells in Early Embryonic Spinal Networks.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2018
    Article
  13. Homeostatic Feedback Modulates the Development of Two-State Patterned Activity in a Model Serotonin Motor Circuit inThe Journal of neuroscience : the official journal of the Society for Neuroscience · 2018
    Article
  14. Review
  15. The Journal of neuroscience : the official journal of the Society for Neuroscience · 2017
    Article
  16. Article
  17. Article
  18. Article
  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

3 authors at 2 institutions in 1 country.

M Gartz HansonDepartment of Neurosciences, Case Western Reserve University, School of Medicine, 10900 Euclid Ave., Cleveland, OH 44106, USA.
Louise D Milner
Lynn T Landmesser
Case Western Reserve University · USUniversity School · US

Funding

DEVELOPMENT AND TROPHIC NEURAL INTERACTIONSR01NS019640 · NINDS · UNIVERSITY OF CONNECTICUT STORRS · PI LANDMESSER, LYNN T · 1985 to 2009
$2.4M
SYNAPSE FORMATIONR01NS023678 · NINDS · CASE WESTERN RESERVE UNIVERSITY · PI LANDMESSER, LYNN T · 1986 to 2007
$1.7M
CONTROL OF NEUROTRANSMITTER PHENOTYPE IN THE EMBRYOR01NS023687 · NINDS · RUTGERS THE ST UNIV OF NJ NEW BRUNSWICK · PI JONAKAIT, GENE MILLER · 1985 to 1988
–
NINDS NIH HHS NS19640NINDS NIH HHS NS23687NINDS NIH HHS R01 NS019640NINDS NIH HHS R01 NS023678
6 · The paper itself

Abstract

During embryonic development chick and mouse spinal cords are activated by highly rhythmic episodes of spontaneous bursting activity at very early stages, while motoneurons are still migrating and beginning to extend their axons to the base of the limb. While such spontaneous activity has been shown to be important in refining neural projections once axons have reached their targets, early pathfinding events have been thought to be activity independent. However, in-ovo pharmacological manipulation of the transmitter systems that drive such early activity has shown that early motor axon pathfinding events are highly dependent on the normal pattern of bursting activity. A modest decrease in episode frequency resulted in dorsal-ventral pathfinding errors by lumbar motoneurons, and in the downregulation of several molecules required to successfully execute this guidance decision. In contrast, increasing the episode frequency was without effect on dorsal-ventral pathfinding. However, it prevented the subsequent motoneuron pool specific fasciculation of axons and their targeting to appropriate muscles, resulting in marked segmental pathfinding errors. These observations emphasize the need to better evaluate how such early spontaneous electrical activity may influence the molecular and transcription factor pathways that have been shown to regulate the differentiation of motor and interneuron phenotypes and the formation of spinal cord circuits. The intracellular signaling pathways by which episode frequency affects motor axon pathfinding must now be elucidated and it will be important to more precisely characterize the patterns with which specific subsets of motor and inter-neurons are activated normally and under conditions that alter spinal circuit formation.

Indexed as

AnimalsAxonsCell MovementChick EmbryoChickensEfferent PathwaysExtremitiesMotor NeuronsSpinal Cord

Identifiers

PMID17920131
PMCPMC2233604
OpenAlexW2084076889

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.