Evidence map›Paper›PMID 17540021›Full record

ArticleBMC developmental biology2007

BDNF promotes target innervation of Xenopus mandibular trigeminal axons in vivo.

Jeffrey K Huang, Karel Dorey, Shoko Ishibashi, Enrique Amaya

Open access · hybridAbstract read
In one paragraph

Article in BMC developmental biology, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
0.8field-weighted citation impact, top 35% 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

18 citing papers in PubMed, 31 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. Article
  5. Frontiers in physiology · 2019
    Review
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Conservation, development, and function of a cement gland-like structure in the fish Astyanax mexicanus.Proceedings of the National Academy of Sciences of the United States of America · 2010
    Article
  15. Review
  16. Myosin-X is required for cranial neural crest cell migration in Xenopus laevis.Developmental dynamics : an official publication of the American Association of Anatomists · 2009
    Article
  17. Article
  18. 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

4 authors at 4 institutions in 1 country.

Jeffrey K HuangWellcome Trust/Cancer Research UK Gurdon Institute, University of Cambridge, Cambridge, UK. jh424@cam.ac.uk
Karel Dorey
Shoko Ishibashi
Enrique Amaya
LGBT Foundation · GBUniversity of Cambridge · GBWellcome/Cancer Research UK Gurdon Institute · GBWellcome Trust · GB

Funding

AMPHIBIAN MODEL FOR VERTEBRATE DEVELOPMENTAL GENETICSR01RR013221 · NCRR · UNIVERSITY OF VIRGINIA CHARLOTTESVILLE · PI GRAINGER, ROBERT M · 1998 to 2008
$2.8M
NCRR NIH HHS R01 RR013221NCRR NIH HHS RR13221Wellcome Trust
6 · The paper itself

Abstract

backgroundTrigeminal nerves consist of ophthalmic, maxillary, and mandibular branches that project to distinct regions of the facial epidermis. In Xenopus embryos, the mandibular branch of the trigeminal nerve extends toward and innervates the cement gland in the anterior facial epithelium. The cement gland has previously been proposed to provide a short-range chemoattractive signal to promote target innervation by mandibular trigeminal axons. Brain derived neurotrophic factor, BDNF is known to stimulate axon outgrowth and branching. The goal of this study is to determine whether BDNF functions as the proposed target recognition signal in the Xenopus cement gland.

resultsWe found that the cement gland is enriched in BDNF mRNA transcripts compared to the other neurotrophins NT3 and NT4 during mandibular trigeminal nerve innervation. BDNF knockdown in Xenopus embryos or specifically in cement glands resulted in the failure of mandibular trigeminal axons to arborise or grow into the cement gland. BDNF expressed ectodermal grafts, when positioned in place of the cement gland, promoted local trigeminal axon arborisation in vivo.

conclusionBDNF is necessary locally to promote end stage target innervation of trigeminal axons in vivo, suggesting that BDNF functions as a short-range signal that stimulates mandibular trigeminal axon arborisation and growth into the cement gland.

Indexed as

AnimalsAnimals, Genetically ModifiedAxonsBlotting, WesternBrain-Derived Neurotrophic FactorEmbryo, NonmammalianExocrine GlandsGanglia, InvertebrateImmunohistochemistryIn Situ Nick-End LabelingMicrodissectionOligonucleotides, AntisensePhenotypeReverse Transcriptase Polymerase Chain ReactionTrigeminal GanglionXenopusBrain-Derived Neurotrophic FactorOligonucleotides, Antisense

Identifiers

PMID17540021
PMCPMC1899173
OpenAlexW1986998447

What OpenQuestion holds

Textmetadata
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.