Evidence map›Paper›PMID 9169519›Full record

ArticleThe Journal of neuroscience : the official journal of the Society for Neuroscience1997

Control of NMDA receptor activation by a glycine transporter co-expressed in Xenopus oocytes.

S Supplisson, C Bergman

Registry-linked trialOpen access · bronzeAbstract read
In one paragraph

Article in The Journal of neuroscience : the official journal of the Society for Neuroscience, 1997. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT00538070 (The Effects of Glycine Transport Inhibition on Brain Glycine Concentration), which is not on this map. Cited by 53 papers.

0numbers the graph read from it
0cells of the map it votes in
53citing papers in PubMed
3.3field-weighted citation impact, top 7% 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.

NCT00538070 nacompletednot on this mapstarted 2007, after this paper: background citation

The Effects of Glycine Transport Inhibition on Brain Glycine Concentration

TypeinterventionalSponsorMassachusetts General HospitalRan2007 to 2012Enrolled68ConditionsSchizophreniaArmsSarcosine
3 · Its place in the literature

Who cites it

53 citing papers in PubMed, 170 citations in OpenAlex.

  1. Review
  2. Glycine: The Smallest Anti-Inflammatory Micronutrient.International journal of molecular sciences · 2023
    Review
  3. Article
  4. Flux coupling, not specificity, shapes the transport and phylogeny of SLC6 glycine transporters.Proceedings of the National Academy of Sciences of the United States of America · 2022
    Article
  5. Article
  6. Article
  7. Article
  8. 5-HTThe Journal of physiology · 2019
    Article
  9. Article
  10. Sigma receptors [σRs]: biology in normal and diseased states.Journal of receptor and signal transduction research · 2016
    Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Glycine transporter-1 controls nonsynaptic inhibitory actions of glycine receptors in the neonatal rat hippocampus.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2014
    Article
  19. Reviewing the ketamine model for schizophrenia.Journal of psychopharmacology (Oxford, England) · 2014
    Review
  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

2 authors at 1 institution in 1 country.

S SupplissonLaboratoire de Neurobiologie, Centre National de la Recherche Scientifique, Unité de Recherche Associée 1857, Ecole Normale Supérieure, 75005 Paris, France.
C Bergman
Laboratoire de Géologie de l’École Normale Supérieure · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

We present evidence that membrane transporters can control the membrane receptor's agonist concentration in restricted extracellular spaces of a biological model. The model is constructed by co-expressing glycine/Na/Cl cotransporters (GLYT1b) and NMDA receptors (NMDARs) (composed of the subunits NR1 and NR2A or NR2B) in Xenopus oocytes. We use the high-affinity glycine site of the NMDARs as a sensor of the actual juxtamembrane glycine concentration. We show that glycine uptake by GLYT1b dramatically reduces NMDAR currents by reducing the glycine concentration in extracellular spaces in which diffusion is restricted. This effect appears only in oocytes in which GLYT1b and NMDAR are co-expressed. It is Na+- and voltage-dependent, and is abolished when Na+ is replaced by Li+ and when glycine is replaced by D-serine (a coagonist of the NMDAR that is not transported by GLYT1b). These results demonstrate the ability of the GLYT transporter to reduce glycine concentration at the level of NMDARs in restricted diffusion spaces. This observation could account for a prevalent role of membrane transporters in the modulation of synapse transmission in the CNS. From a more general point of view, our results draw attention to possible significant discrepancies between local concentrations at the level of substrate targets in biological membranes and their concentration in the bulk solution when membrane transporters are present.

Indexed as

Amino Acid Transport Systems, NeutralAnimalsBrainCarrier ProteinsCell MembraneFemaleGlutamic AcidGlycineGlycine Plasma Membrane Transport ProteinsHumansIn Vitro TechniquesKineticsMembrane PotentialsOocytesPatch-Clamp TechniquesReceptors, N-Methyl-D-AspartateAmino Acid Transport Systems, NeutralCarrier ProteinsGlutamic AcidGlycineGlycine Plasma Membrane Transport ProteinsReceptors, N-Methyl-D-AspartateRecombinant Proteins

Identifiers

PMID9169519
PMCPMC6573333
OpenAlexW1911169303

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

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.