Evidence map›Paper›PMID 22292013›Full record

ArticlePloS one2012

Glutamate may be an efferent transmitter that elicits inhibition in mouse taste buds.

Yijen A Huang, Jeff Grant, Stephen Roper

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
2.5field-weighted citation impact, top 12% 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

19 citing papers in PubMed, 29 citations in OpenAlex.

  1. Article
  2. Review
  3. Pharmacology of the Umami Taste Receptor.Handbook of experimental pharmacology · 2022
    Article
  4. Article
  5. Sensing Senses: Optical Biosensors to Study Gustation.Sensors (Basel, Switzerland) · 2020
    Review
  6. Article
  7. Taste buds: cells, signals and synapses.Nature reviews. Neuroscience · 2017
    Review
  8. Article
  9. Glutamate: Tastant and Neuromodulator in Taste Buds.Advances in nutrition (Bethesda, Md.) · 2016
    Review
  10. Article
  11. Calcitonin Gene-Related Peptide Reduces Taste-Evoked ATP Secretion from Mouse Taste Buds.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2015
    Article
  12. Article
  13. Article
  14. A taste for ATP: neurotransmission in taste buds.Frontiers in cellular neuroscience · 2013
    Review
  15. Article
  16. Article
  17. Taste buds as peripheral chemosensory processors.Seminars in cell & developmental biology · 2013
    Review
  18. Article
  19. Natural product of gambier (Journal of advanced pharmaceutical technology & research
    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.

Yijen A HuangDepartment of Physiology and Biophysics, University of Miami School of Medicine, Miami, Florida, United States of America. sroper@med.miami.edu
Jeff Grant
Stephen Roper
University of Miami · US

Funding

CHEMOSENSORY TRANSDUCTION IN TASTE CELLSR01DC000374 · NIDCD · UNIVERSITY OF MIAMI SCHOOL OF MEDICINE · PI ROPER, STEPHEN D. · 1989 to 2012
$4.2M
A new method to measure taste bud functionR01DC007630 · NIDCD · UNIVERSITY OF MIAMI SCHOOL OF MEDICINE · PI ROPER, STEPHEN D. · 2006 to 2016
$3.1M
NIDCD NIH HHS 2R01DC007630NIDCD NIH HHS 5R01DC000374NIDCD NIH HHS R01 DC000374NIDCD NIH HHS R01 DC007630
6 · The paper itself

Abstract

Recent studies suggest that l-glutamate may be an efferent transmitter released from axons innervating taste buds. In this report, we determined the types of ionotropic synaptic glutamate receptors present on taste cells and that underlie this postulated efferent transmission. We also studied what effect glutamate exerts on taste bud function. We isolated mouse taste buds and taste cells, conducted functional imaging using Fura 2, and used cellular biosensors to monitor taste-evoked transmitter release. The findings show that a large fraction of Presynaptic (Type III) taste bud cells (∼50%) respond to 100 µM glutamate, NMDA, or kainic acid (KA) with an increase in intracellular Ca(2+). In contrast, Receptor (Type II) taste cells rarely (4%) responded to 100 µM glutamate. At this concentration and with these compounds, these agonists activate glutamatergic synaptic receptors, not glutamate taste (umami) receptors. Moreover, applying glutamate, NMDA, or KA caused taste buds to secrete 5-HT, a Presynaptic taste cell transmitter, but not ATP, a Receptor cell transmitter. Indeed, glutamate-evoked 5-HT release inhibited taste-evoked ATP secretion. The findings are consistent with a role for glutamate in taste buds as an inhibitory efferent transmitter that acts via ionotropic synaptic glutamate receptors.

Indexed as

AnimalsCHO CellsCricetinaeCricetulusGlutamic AcidGreen Fluorescent ProteinsMiceMice, Inbred C57BLMice, TransgenicNeural InhibitionNeurons, EfferentNeurotransmitter AgentsPhospholipase C betaReceptor, Serotonin, 5-HT2CReceptors, Purinergic P2X2Receptors, Purinergic P2X3Glutamic AcidGreen Fluorescent ProteinsNeurotransmitter AgentsPhospholipase C betaReceptor, Serotonin, 5-HT2CReceptors, Purinergic P2X2Receptors, Purinergic P2X3

Identifiers

PMID22292013
PMCPMC3266908
OpenAlexW2025942358

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.