Evidence map›Paper›PMID 1416080›Full record

ArticleAnatomy and embryology1992

Schwann cells are not required for guidance of motor nerves in the hindlimb in Splotch mutant mouse embryos.

M Grim, Z Halata, T Franz

Abstract read
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In one paragraph

Article in Anatomy and embryology, 1992. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
0.6field-weighted citation impact, top 40% 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

17 citing papers in PubMed, 33 citations in OpenAlex.

  1. GFRα1 Promotes Axon Regeneration after Peripheral Nerve Injury by Functioning as a Ligand.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2025
    Article
  2. PAX Genes in Cardiovascular Development.International journal of molecular sciences · 2022
    Review
  3. Article
  4. Review
  5. Review
  6. Article
  7. Article
  8. Review
  9. Review
  10. Schwann Cells: Development and Role in Nerve Repair.Cold Spring Harbor perspectives in biology · 2015
    Review
  11. Article
  12. Review
  13. Schwann cells proliferate at rat neuromuscular junctions during development and regeneration.The Journal of neuroscience : the official journal of the Society for Neuroscience · 1998
    Article
  14. Article
  15. Article
  16. Article
  17. 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

3 authors at 2 institutions in 2 countries.

M GrimInstitute of Anatomy, Charles University, Prague, Czechoslovakia.
Z Halata
T Franz
Universität Hamburg · DECharles University · CZ

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The topogenesis of the hindlimb nerves of Splotch homozygous mutant mouse embryos was studied using light and electron microscopy. Homozygous mutants show multiple defects of neural crest-derived tissues. The defects increase along a rostro-caudal gradient. The cervical and upper thoracic segments have small spinal ganglia, and Schwann cells are associated with the spinal nerves. In the lumbo-sacral region neurulation is not complete, and the derivatives of the neural crest are missing. The lumbo-sacral nerve trunks are formed by ventral roots only. They are occasionally associated with presumptive glial cells that have migrated from the spinal cord for a short distance. Beyond the vertebral primordia, the spinal nerves are not accompanied by Schwann cells. No compartmentalization of the axons within the lumbo-sacral nerves was visible, whereas Schwann cells did segment the nerve into the fascicles in brachial nerves. The lumbo-sacral plexus develops, and its branches grow into the hindlimb despite the absence of Schwann cells. On day 13.5 of gestation, the lumbo-sacral nerve trunks extend well into the distal calf. They are topographically correctly positioned. Their branches enter the muscle primordia and form contacts with their mesenchymal cells though the cutaneous branches are missing. Generally, the outgrowth of lumbo-sacral nerves is slower than in phenotypically normal littermates, whose nerves reach the foot plate at corresponding stages of development. These results demonstrate that the lumbo-sacral plexus and the topographically correct position of lumbo-sacral nerve trunks develop despite the absence of Schwann cells. Therefore Schwann cells are not necessary for the outgrowth and guidance of axons within the limb.

Indexed as

AnimalsHindlimbMiceMice, Mutant StrainsMicroscopy, ElectronPeripheral NervesSchwann CellsSpinal CordSpinal Nerves

Identifiers

PMID1416080
OpenAlexW1984976107

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

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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.