Evidence map›Paper›PMID 19571214›Full record

ReviewThe American journal of clinical nutrition2009

Umami taste transduction mechanisms.

Sue C Kinnamon

Open access · greenAbstract readReview
In one paragraph

Review in The American journal of clinical nutrition, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers.

0numbers the graph read from it
0cells of the map it votes in
30citing papers in PubMed
9.1field-weighted citation impact, top 2% 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

30 citing papers in PubMed, 111 citations in OpenAlex.

  1. Trial
  2. Article
  3. Review
  4. Article
  5. Article
  6. Article
  7. Review
  8. Article
  9. Article
  10. Differentiated Epithelial Cells of the Gut.Methods in molecular biology (Clifton, N.J.) · 2023
    Article
  11. Sweet Chestnut (Foods (Basel, Switzerland) · 2022
    Review
  12. Sensing Senses: Optical Biosensors to Study Gustation.Sensors (Basel, Switzerland) · 2020
    Review
  13. Article
  14. Review
  15. Glutamatergic Signaling Along The Microbiota-Gut-Brain Axis.International journal of molecular sciences · 2019
    Review
  16. Quality Evaluation ofMolecules (Basel, Switzerland) · 2018
    Article
  17. Review
  18. Review
  19. Glutamate prevents intestinal atrophy via luminal nutrient sensing in a mouse model of total parenteral nutrition.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2014
    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

1 author at 1 institution in 1 country.

Sue C KinnamonDepartment of Biomedical Sciences, Colorado State University, Fort Collins, 80523, USA. sue.kinnamon@ucdenver.edu
Colorado State University · US

Funding

ELECTROPHYSIOLOGY OF TASTE TRANSDUCTIONR01DC000766 · NIDCD · UNIVERSITY OF COLORADO DENVER · PI KINNAMON, SUE C. · 1990 to 2009
$2.9M
NIDCD NIH HHS R01DC00766
6 · The paper itself

Abstract

l-Glutamate elicits the umami taste sensation, now recognized as a fifth distinct taste quality. A characteristic feature of umami taste is its potentiation by 5'-ribonucleotides such as guanosine-5'-monophosphate and inosine 5'-monophosphate, which also elicit the umami taste on their own. Recent data suggest that multiple G protein-coupled receptors contribute to umami taste. This review will focus on events downstream of the umami taste receptors. Ligand binding leads to Gbetagamma activation of phospholipase C beta2, which produces the second messengers inositol trisphosphate and diacylglycerol. Inositol trisphosphate binds to the type III inositol trisphosphate receptor, which causes the release of Ca(2+) from intracellular stores and Ca(2+)-dependent activation of a monovalent-selective cation channel, TRPM5. TRPM5 is believed to depolarize taste cells, which leads to the release of ATP, which activates ionotropic purinergic receptors on gustatory afferent nerve fibers. This model is supported by knockout of the relevant signaling effectors as well as physiologic studies of isolated taste cells. Concomitant with the molecular studies, physiologic studies show that l-glutamate elicits increases in intracellular Ca(2+) in isolated taste cells and that the source of the Ca(2+) is release from intracellular stores. Both Galpha gustducin and Galpha transducin are involved in umami signaling, because the knockout of either subunit compromises responses to umami stimuli. Both alpha-gustducin and alpha-transducin activate phosphodiesterases to decrease intracellular cAMP. The target of cAMP in umami transduction is not known, but membrane-permeant analogs of cAMP antagonize electrophysiologic responses to umami stimuli in isolated taste cells, which suggests that cAMP may have a modulatory role in umami signaling.

Indexed as

Glutamic AcidAnimalsCalciumCalcium SignalingCyclic AMPRatsReceptors, GlutamateReceptors, G-Protein-CoupledSignal TransductionTasteTaste PerceptionCalciumCyclic AMPGlutamic AcidReceptors, GlutamateReceptors, G-Protein-Coupled

Identifiers

PMID19571214
PMCPMC3136003
OpenAlexW2042504416

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.