Evidence map›Paper›PMID 12163341›Full record

ArticleBritish journal of pharmacology2002

Sphingosine 1-phosphate enhances spontaneous transmitter release at the frog neuromuscular junction.

Eugen Brailoiu, Robin L Cooper, Nae J Dun

Abstract read
In one paragraph

Article in British journal of pharmacology, 2002. 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
–field-weighted citation impact
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.

  1. Trial
  2. Review
  3. Review
  4. The SphK1/S1P Axis Regulates Synaptic Vesicle Endocytosis via TRPC5 Channels.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2023
    Article
  5. Review
  6. Article
  7. Review
  8. Review
  9. Article
  10. Review
  11. Extrasynaptic muscarinic acetylcholine receptors on neuronal cell bodies regulate presynaptic function in Caenorhabditis elegans.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2013
    Article
  12. Article
  13. Review
  14. Permissive role of sphingosine on calcium-dependent endocytosis in chromaffin cells.Pflugers Archiv : European journal of physiology · 2010
    Article
  15. Article
  16. Antinociceptive activity of the S1P-receptor agonist FTY720.Journal of cellular and molecular medicine · 2008
    Article
  17. Article
  18. 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.

Eugen BrailoiuDepartment of Pharmacology, James H. Quillen College of Medicine, East Tennessee State University, PO Box 70577, Johnson City 37614, USA.
Robin L Cooper
Nae J Dun

Funding

Activity of Preganglionic Neurons in VitroR37NS018710 · NINDS · TEMPLE UNIV OF THE COMMONWEALTH · PI DUN, NAE J · 2003 to 2009
$2.2M
NEUROBIOLOGY OF ENDOMORPHINS IN SPINAL DORSAL HORNR01NS039646 · NINDS · EAST TENNESSEE STATE UNIVERSITY · PI DUN, NAE J · 2000 to 2002
$598k
ACTIVITY O PREGANGLIONIC NEURONS IN VITROR01NS018710 · NINDS · UNIVERSITY OF TOLEDO HEALTH SCI CAMPUS · PI DUN, NAE J · 1985 to 2001
$493k
NINDS NIH HHS NS18710NINDS NIH HHS NS39646NINDS NIH HHS R01 NS018710NINDS NIH HHS R37 NS018710
6 · The paper itself

Abstract

Intracellular recordings were made from isolated frog sciatic-sartorius nerve-muscle preparations, and the effects of sphingosine 1-phosphate (S1-P) on miniature endplate potentials (MEPPs) were studied. Extracellular application of S1-P (1 and 30 micro M) had no significant effects on the frequency and amplitude of MEPPs. Delivery into nerve terminals by liposomes containing 10(-5), 10(-4) or 10(-3) M S1-P was associated with a concentration-dependent increase in MEPP frequency of 37, 63 and 86%. The per cent of median MEPP amplitude was not significantly changed, but there was an increase in the number of 'giant' MEPPs. Pre-exposure of the preparations to S1-P 10(-5) but not 10(-8) M entrapped in liposomes for 15 min blocked the effects of subsequent superfusion of S1-P (10(-4) M)-filled liposomes on MEPP frequency. Thus, intracellular S1-P receptors seem to undergo 'desensitization' to higher concentrations of S1-P. The result provides the first evidence that S1-P acting intracellularly but not extracellularly enhances spontaneous transmitter release at the frog neuromuscular junction.

Indexed as

LysophospholipidsReceptors, G-Protein-CoupledAnimalsElectric StimulationElectrophysiologyExtracellular SpaceIntracellular FluidIn Vitro TechniquesLiposomesMotor EndplateNeuromuscular JunctionNeurotransmitter AgentsRana pipiensReceptors, Cell SurfaceReceptors, LysophospholipidSphingosineLiposomesLysophospholipidsNeurotransmitter AgentsReceptors, Cell SurfaceReceptors, G-Protein-CoupledReceptors, LysophospholipidSphingosinesphingosine 1-phosphate

Identifiers

PMID12163341
PMCPMC1573457

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.