Evidence map›Paper›PMID 18823502›Full record

ArticleThe European journal of neuroscience2008

Embryonic motor activity and implications for regulating motoneuron axonal pathfinding in zebrafish.

Evdokia Menelaou, Erin E Husbands, Robin G Pollet, Christopher A Coutts, Declan W Ali, Kurt R Svoboda

Open access · bronzeAbstract read
In one paragraph

Article in The European journal of neuroscience, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
0.8field-weighted citation impact, top 31% 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

21 citing papers in PubMed, 52 citations in OpenAlex.

  1. Review
  2. Article
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  15. Article
  16. Zebrafish for the study of the biological effects of nicotine.Nicotine & tobacco research : official journal of the Society for Research on Nicotine and Tobacco · 2011
    Review
  17. Article
  18. Nitric oxide synthase regulates morphogenesis of zebrafish spinal cord motoneurons.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2010
    Article
  19. Article
  20. Review
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

6 authors at 2 institutions in 2 countries.

Evdokia MenelaouDepartment of Biological Sciences, Louisiana State University, Baton Rouge, LA 70803, USA.
Erin E Husbands
Robin G Pollet
Christopher A Coutts
Declan W Ali
Kurt R Svoboda
Louisiana State University · USUniversity of Alberta · CA

Funding

"Mechanisms underlying nicotine induced neuronal toxicity in zebrafish"R01ES016513 · NIEHS · UNIVERSITY OF WISCONSIN MILWAUKEE · PI SVOBODA, KURT R · 2007 to 2011
$1.8M
NIEHS NIH HHS ES016513NIEHS NIH HHS R01 ES016513
6 · The paper itself

Abstract

Zebrafish embryos exhibit spontaneous contractions of the musculature as early as 18-19 h post fertilization (hpf) when removed from their protective chorion. These movements are likely initiated by early embryonic central nervous system activity. We have made the observation that narrowminded mutant embryos (hereafter, nrd(-/-)) lack normal embryonic motor output upon dechorionation. However, these mutants can swim and respond to tactile stimulation by larval stages of development. nrd(-/-) embryos exhibit defects in neural crest development, slow muscle development and also lack spinal mechanosensory neurons known as Rohon-Beard (RB) neurons. At early developmental stages (i.e. 21-22 hpf) and while still in their chorions, nrd siblings (nrd(+/?)) exhibited contractions of the musculature at a rate similar to wild-type embryos. Anatomical analysis indicated that RB neurons were present in the motile embryos, but absent in the non-motile embryos, indicating that the non-motile embryos were nrd(-/-) embryos. Further anatomical analysis of nrd(-/-) embryos revealed errors in motoneuron axonal pathfinding that persisted into the larval stage of development. These errors were reversed when nrd(-/-) embryos were raised in high [K(+)] beginning at 21 hpf, indicating that the abnormal axonal phenotypes may be related to a lack of depolarizing activity early in development. When activity was blocked with tricaine in wild-type embryos, motoneuron phenotypes were similar to the motoneuron phenotypes in nrd(-/-) embryos. These results implicate early embryonic activity in conjunction with other factors as necessary for normal motoneuron development.

Indexed as

Embryo, NonmammalianAminobenzoatesAnestheticsAnimalsAxonsBasic Helix-Loop-Helix ProteinsBehavior, AnimalCell MovementCell ShapeMotor ActivityMotor NeuronsMuscle ContractionMuscle, SkeletalNerve Tissue ProteinsPatch-Clamp TechniquesPotassium ChlorideAminobenzoatesAnestheticsBasic Helix-Loop-Helix ProteinsNerve Tissue ProteinsNeurogenic differentiation factor 1Potassium Chloridetricaine

Identifiers

PMID18823502
PMCPMC2741004
OpenAlexW1969968909

What OpenQuestion holds

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LicenceCC BY
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.