Evidence map›Paper›PMID 11487662›Full record

ArticleThe Journal of neuroscience : the official journal of the Society for Neuroscience2001

Group I metabotropic glutamate receptors elicit epileptiform discharges in the hippocampus through PLCbeta1 signaling.

S C Chuang, R Bianchi, D Kim, H S Shin, R K Wong

Open access · greenAbstract read
In one paragraph

Article in The Journal of neuroscience : the official journal of the Society for Neuroscience, 2001. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 35 papers.

0numbers the graph read from it
0cells of the map it votes in
35citing papers in PubMed
1.5field-weighted citation impact, top 19% 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

35 citing papers in PubMed, 77 citations in OpenAlex.

  1. Article
  2. Review
  3. Group 1 Metabotropic Glutamate Receptors in Neurological and Psychiatric Diseases: Mechanisms and Prospective.The Neuroscientist : a review journal bringing neurobiology, neurology and psychiatry · 2022
    Review
  4. CaInternational journal of molecular sciences · 2022
    Review
  5. Article
  6. Article
  7. Article
  8. Review
  9. Review
  10. Persistent receptor activity underlies group I mGluR-mediated cellular plasticity in CA3 neuron.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2013
    Article
  11. Article
  12. Review
  13. Article
  14. Article
  15. Review
  16. Article
  17. Review
  18. BC1 regulation of metabotropic glutamate receptor-mediated neuronal excitability.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2009
    Article
  19. Article
  20. Cellular plasticity for group I mGluR-mediated epileptogenesis.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2009
    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

5 authors at 2 institutions in 2 countries.

S C ChuangDepartment of Physiology and Pharmacology, State University of New York-Health Science Center at Brooklyn, Brooklyn, New York 11203, USA.
R Bianchi
D Kim
H S Shin
R K Wong
State University of New York · USPohang University of Science and Technology · KR

Funding

GLUTAMATE RECEPTORS IN EPILEPSYR01NS035481 · NINDS · SUNY DOWNSTATE MEDICAL CENTER · PI WONG, ROBERT K · 1998 to 2011
$3.0M
Glutamate Receptors in EpilepsyR56NS035481 · NINDS · SUNY DOWNSTATE MEDICAL CENTER · PI WONG, ROBERT K · 2008 to 2008
$390k
NINDS NIH HHS NS-35481
6 · The paper itself

Abstract

Activation of metabotropic glutamate receptors (mGluRs) produces multiple effects in cortical neurons, resulting in the emergence of network activities including epileptiform discharges. The cellular mechanisms underlying such network responses are largely unknown. We examined the properties of group I mGluR-mediated cellular responses in CA3 neurons and attempted to determine their role in the generation of the network activities. Group I mGluR stimulation causes depolarization of hippocampal neurons. This depolarization is primarily mediated by two sets of conductance change: the opening of a voltage-dependent cationic conductance (mediating I(mGluR(V))) and the closing of a voltage-independent (background) K(+) conductance. I(mGluR(V)) was no longer elicited by group I mGluR agonists in the presence of U73122, a phospholipase C (PLC) blocker. Also, the current could not be activated in hippocampal CA3 neurons from PLCbeta1 knock-out mice. In contrast, suppression of PLC signaling did not affect the group I mGluR-mediated suppression of background K(+) conductance. Thus, the suppression of the background K(+) conductance occurred upstream to PLC activation, whereas the generation of I(mGluR(V)) occurred downstream to PLC activation. Group I mGluR agonists normally elicited rhythmic single cell and population burst responses in the CA3 neurons. In the absence of an I(mGluR(V)) response, CA3 neurons in slices prepared from PLCbeta1-/- mutant mice could no longer generate these responses. The results suggest that I(mGluR(V)) expression in CA3 hippocampal neuron is PLCbeta1-dependent and that I(mGluR(V)) plays a necessary role in the generation of rhythmic single cell bursts and synchronized epileptiform discharges in the CA3 region of the hippocampus.

Indexed as

Signal TransductionAnimalsBiological ClocksCell MembraneCrosses, GeneticEnzyme InhibitorsEpilepsyExcitatory Amino Acid AgonistsGlycineHippocampusHomozygoteIn Vitro TechniquesIsoenzymesMiceMice, Inbred StrainsMice, Knockout3,5-dihydroxyphenylglycineEnzyme InhibitorsExcitatory Amino Acid AgonistsGlycineIsoenzymesmetabotropic glutamate receptor type 1Phospholipase C betaPotassiumReceptors, Metabotropic GlutamateResorcinolsType C Phospholipases

Identifiers

PMID11487662
PMCPMC6763182
OpenAlexW2116507293

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.