Evidence map›Paper›PMID 21481196›Full record

ReviewActa physiologica (Oxford, England)2012

Taste receptor signalling - from tongues to lungs.

S C Kinnamon

Registry-linked trialAbstract readReview
In one paragraph

Review in Acta physiologica (Oxford, England), 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT02859116 (Collection of Gastrointestinal Tissue Samples for the Characterization and ex Vivo Functional Assessment of Chemoreceptors), which is not on this map. Cited by 95 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
95citing papers in PubMed, 1 pooled it
12.5field-weighted citation impact, top 1% 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.

NCT02859116 completednot on this mapstarted 2016, after this paper: background citation

Collection of Gastrointestinal Tissue Samples for the Characterization and ex Vivo Functional Assessment of Chemoreceptors

TypeobservationalSponsorAdventHealth Translational Research InstituteRan2016 to 2022Enrolled8ConditionsDiabetesArmsCollection of digestive tissues
3 · Its place in the literature

Who cites it

95 citing papers in PubMed, 1 synthesis or guideline pooled it, 236 citations in OpenAlex.

  1. Interventions for managing taste disturbances.The Cochrane database of systematic reviews · 2017
    Pooled it
  2. Trial
  3. Review
  4. Review
  5. Article
  6. Review
  7. Review
  8. A deadly taste: linking bitter taste receptors and apoptosis.Apoptosis : an international journal on programmed cell death · 2025
    Review
  9. Review
  10. Article
  11. Mechanisms and Functions of Sweet Reception in Oral and Extraoral Organs.International journal of molecular sciences · 2024
    Review
  12. Exendin-4 blockade of T1R2/T1R3 activation improves Pseudomonas aeruginosa-related pneumonia in an animal model of chemically induced diabetes.Inflammation research : official journal of the European Histamine Research Society ... [et al.] · 2024
    Article
  13. Article
  14. Article
  15. Review
  16. Article
  17. Article
  18. Brush cells fine-tune neurogenic inflammation in the airways.The Journal of clinical investigation · 2022
    Article
  19. Article
  20. Article

35 more citing papers are in PubMed but not listed here.

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.

S C KinnamonDepartment of Otolaryngology, School of Medicine, University of Colorado Denver, Aurora, 80534, USA. sue.kinnamon@ucdenver.edu
University of Colorado Denver · US

Funding

NIDCD P30 Core: Rocky Mountain Taste and Smell CenterP30DC004657 · NIDCD · UNIVERSITY OF COLORADO DENVER · PI KINNAMON, SUE C., RESTREPO, DIEGO · 2000 to 2014
$7.6M
ELECTROPHYSIOLOGY OF TASTE TRANSDUCTIONR01DC000766 · NIDCD · UNIVERSITY OF COLORADO DENVER · PI KINNAMON, SUE C. · 1990 to 2009
$2.9M
Mechanisms of sweet transduction in mammalian taste budsR01DC006021 · NIDCD · UNIVERSITY OF MIAMI SCHOOL OF MEDICINE · PI CHAUDHARI, NIRUPA · 2003 to 2011
$2.8M
Nasal Solitary Chemoreceptor Cells: Detection of Pathogenic BacteriaR01DC009820 · NIDCD · UNIVERSITY OF COLORADO DENVER · PI FINGER, THOMAS E, KINNAMON, SUE C. · 2009 to 2013
$2.2M
Transmission of Taste Signals in Taste BudsR01DC007495 · NIDCD · UNIVERSITY OF COLORADO DENVER · PI FINGER, THOMAS E · 2006 to 2010
$2.2M
NIDCD NIH HHS DC006021NIDCD NIH HHS DC007495NIDCD NIH HHS DC00766NIDCD NIH HHS DC009820NIDCD NIH HHS P30 DC004657NIDCD NIH HHS P30DC004657NIDCD NIH HHS R01 DC000766NIDCD NIH HHS R01 DC006021NIDCD NIH HHS R01 DC007495NIDCD NIH HHS R01 DC009820
6 · The paper itself

Abstract

Taste buds are the transducing endorgans of gustation. Each taste bud comprises 50-100 elongated cells, which extend from the basal lamina to the surface of the tongue, where their apical microvilli encounter taste stimuli in the oral cavity. Salts and acids utilize apically located ion channels for transduction, while bitter, sweet and umami (glutamate) stimuli utilize G-protein-coupled receptors (GPCRs) and second-messenger signalling mechanisms. This review will focus on GPCR signalling mechanisms. Two classes of taste GPCRs have been identified, the T1Rs for sweet and umami (glutamate) stimuli and the T2Rs for bitter stimuli. These low affinity GPCRs all couple to the same downstream signalling effectors that include Gβγ activation of phospholipase Cβ2, 1,4,5-inositol trisphosphate mediated release of Ca(2+) from intracellular stores and Ca(2+) -dependent activation of the monovalent selective cation channel, TrpM5. These events lead to membrane depolarization, action potentials and release of ATP as a transmitter to activate gustatory afferents. The Gα subunit, α-gustducin, activates a phosphodiesterase to decrease intracellular cAMP levels, although the precise targets of cAMP have not been identified. With the molecular identification of the taste GPCRs, it has become clear that taste signalling is not limited to taste buds, but occurs in many cell types of the airways. These include solitary chemosensory cells, ciliated epithelial cells and smooth muscle cells. Bitter receptors are most abundantly expressed in the airways, where they respond to irritating chemicals and promote protective airway reflexes, utilizing the same downstream signalling effectors as taste cells.

Indexed as

AnimalsCell CommunicationGlutamic AcidHumansLungMicePhospholipase C betaReceptors, GlutamateReceptors, G-Protein-CoupledSecond Messenger SystemsTasteTaste BudsTaste Receptors, Type 2TransducinTRPM Cation ChannelsGlutamic AcidgustducinPhospholipase C betaReceptors, GlutamateReceptors, G-Protein-Coupledtaste receptors, type 1Taste Receptors, Type 2TransducinTRPM5 protein, humanTRPM Cation Channels

Identifiers

PMID21481196
PMCPMC3704337
OpenAlexW2122168617

What OpenQuestion holds

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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.