Evidence map›Paper›PMID 9288681›Full record

ArticleThe Journal of physiology1997

Regulation of quantal secretion by neurotrophic factors at developing motoneurons in Xenopus cell cultures.

J C Liou, R S Yang, W M Fu

Open access · greenAbstract read
In one paragraph

Article in The Journal of physiology, 1997. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
2.6field-weighted citation impact, top 9% 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

20 citing papers in PubMed, 51 citations in OpenAlex.

  1. Review
  2. BDNF/trkB Induction of Calcium Transients through CaFrontiers in molecular neuroscience · 2017
    Article
  3. Article
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  8. Optical measurements of presynaptic release in mutant zebrafish lacking postsynaptic receptors.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2003
    Article
  9. Brain-derived neurotrophic factor modulation of GABAergic synapses by postsynaptic regulation of chloride transport.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2003
    Article
  10. Article
  11. Article
  12. Stabilization of growing retinal axons by the combined signaling of nitric oxide and brain-derived neurotrophic factor.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2000
    Article
  13. Article
  14. Long-term enhancement of central synaptic transmission by chronic brain-derived neurotrophic factor treatment.The Journal of neuroscience : the official journal of the Society for Neuroscience · 1999
    Article
  15. Article
  16. Article
  17. Article
  18. Presynaptic modulation of synaptic transmission and plasticity by brain-derived neurotrophic factor in the developing hippocampus.The Journal of neuroscience : the official journal of the Society for Neuroscience · 1998
    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 1 institution in 1 country.

J C LiouDepartment of Pharmacology, College of Medicine, National Taiwan University, Taipei.
R S Yang
W M Fu
National Taiwan University · TW

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

1. The ability of different neurotrophic factors to maintain and regulate synaptic function at the developing motoneuron was studied in Xenopus nerve-muscle co-cultures. Spontaneous synaptic currents (SSCs) were measured by using whole-cell voltage-clamped myocytes. 2. Compared with natural synapses, motoneurons without contact on a myocyte (naive neurons) released ACh in smaller quantal packets, the amplitude being inversely proportional to the days in culture. The mean SSC amplitudes of naive neurons, which were measured by manipulating a myoball into contact with the myocyte-free nerve terminals to form a manipulated synapse, were 99.5 +/- 6.7 and 48.2 +/- 1.9 pA for day-1 and day-3 cultures, respectively. 3. Chronic treatment of day-1 cultures with brain-derived neurotrophic factor (BDNF), neurotrophin-3 (NT-3), neurotrophin-4 (NT-4), ciliary neurotrophic factor (CNTF) or glial cell line-derived neurotrophic factor (GDNF) for 2 days, increased the ACh quantal size of naive motoneurons in a concentration-dependent manner, whereas insulin-like growth factor-1 (IGF-1) and basic fibroblast growth factor (bFGF) had no effect, even at high concentrations. 4. The interaction of various neurotrophic factors was examined, using concentrations that gave maximal effects. Combination of CNTF plus BDNF or CNTF plus NT-3 had synergistic effects in potentiating SSC amplitude of the manipulated synapse of naive neurons, whereas NT-3 plus BDNF, NT-3 plus GDNF, BDNF plus GDNF or CNTF plus GDNF had no synergistic action. 5. Chronic treatment with d-tubocurarine for 2 days resulted in a reduction of the quantal size of natural synapses. Concomitant treatment with BDNF, NT-3, GDNF, CNTF but not bFGF or IGF-1, reconstituted the SSC amplitude. 6. Taken together, these findings suggest that BDNF, NT-3, NT-4, CNTF and GDNF may regulate and maintain the synaptic function of developing motoneurons, and different neurotrophic factors utilizing distinct signalling mechanisms may have synergistic actions.

Indexed as

AcetylcholineAnimalsBrain-Derived Neurotrophic FactorCells, CulturedCiliary Neurotrophic FactorCoculture TechniquesDrug SynergismEmbryo, NonmammalianFibroblast Growth Factor 2Glial Cell Line-Derived Neurotrophic FactorInsulin-Like Growth Factor IMembrane PotentialsMotor NeuronsMuscle, SkeletalNerve Growth FactorsNerve Tissue ProteinsAcetylcholineBrain-Derived Neurotrophic FactorCiliary Neurotrophic FactorFibroblast Growth Factor 2Glial Cell Line-Derived Neurotrophic FactorInsulin-Like Growth Factor INerve Growth FactorsNerve Tissue ProteinsNeurotrophin 3neurotrophin 4

Identifiers

PMID9288681
PMCPMC1159893
OpenAlexW2124696700

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.