Evidence map›Paper›PMID 22832571›Full record

ArticleJournal of neurophysiology2012

Sweet-bitter and umami-bitter taste interactions in single parabrachial neurons in C57BL/6J mice.

Kenichi Tokita, John D Boughter

Abstract read
In one paragraph

Article in Journal of neurophysiology, 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
2.7field-weighted citation impact, top 11% 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, 39 citations in OpenAlex.

  1. Gustatory and olfactory-guided responsiveness to maltodextrin solutions in mice.American journal of physiology. Regulatory, integrative and comparative physiology · 2025
    Article
  2. Review
  3. Article
  4. TRPV1-Lineage Somatosensory Fibers Communicate with Taste Neurons in the Mouse Parabrachial Nucleus.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2022
    Article
  5. Suppression of hTAS2R16 Signaling by Umami Substances.International journal of molecular sciences · 2020
    Article
  6. Article
  7. Central taste anatomy and physiology.Handbook of clinical neurology · 2019
    Review
  8. Article
  9. Article
  10. Review
  11. Why do we like sweet taste: A bitter tale?Physiology & behavior · 2016
    Review
  12. Article
  13. Article
  14. Parabrachial calcitonin gene-related peptide neurons mediate conditioned taste aversion.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2015
    Article
  15. Article
  16. Article
  17. TRPs in taste and chemesthesis.Handbook of experimental pharmacology · 2014
    Review
  18. Article
  19. 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.

Kenichi TokitaDept. of Anatomy and Neurobiology, Univ. of Tennessee Health Science Center, Memphis, TN 38163, USA.
John D Boughter
University of Tennessee Health Science Center · US

Funding

SENSORY CODING IN TASTER01DC000353 · NIDCD · UNIVERSITY OF TENNESSEE HEALTH SCI CTR · PI BOUGHTER, JOHN D · 1989 to 2014
$4.5M
NIDCD NIH HHS DC-000353NIDCD NIH HHS R01 DC000353
6 · The paper itself

Abstract

We investigated sweet-bitter and umami-bitter mixture taste interactions by presenting sucrose or umami stimuli mixed with quinine hydrochloride (QHCl) while recording single-unit activity of neurons in the parabrachial nucleus (PbN) of urethane-anesthetized C57BL/6J mice. A total of 70 taste-responsive neurons were classified according to which stimulus evoked the greatest net response (36 sucrose-best, 19 NaCl-best, 6 citric acid-best, and 9 QHCl-best). Although no neurons responded best to monopotassium glutamate (MPG) or inosine 5'-monophosphate (IMP), the combination of these two stimuli evoked a synergistic response (i.e., response > 120% of the sum of the component responses) in all sucrose-best and some NaCl-best neurons (n = 43). Adding QHCl to sucrose or MPG + IMP resulted in suppression of the response (responses to mixture < responses to the more effective component) in 41 of 43 synergistic neurons. Neurons showing QHCl suppression were classified into two types: an "MS1" type (n = 27) with suppressed responses both to sucrose and MPG + IMP and an "MS2" type (n = 14) that showed suppressed responses only to sucrose. No neuron displayed suppressed responses to MPG or IMP alone. The suppression ratio (1 - mixture response/sucrose or MPG + IMP response) of sucrose and MPG + IMP in MS1 neurons had a weak positive correlation (r = 0.36). The pattern of reconstructed recording sites of neuron types suggested chemotopic organization in the PbN. Although a peripheral basis for QHCl suppression has been demonstrated, our results suggest that convergence in the PbN plays a role in shaping responses to taste mixtures.

Indexed as

AnimalsBrain StemEvoked Potentials, SomatosensoryGlutamatesInosine MonophosphateMaleMiceMice, Inbred C57BLNeuronsQuinineSodium ChlorideSucroseTasteGlutamatesInosine MonophosphateQuinineSodium ChlorideSucrose

Identifiers

PMID22832571
PMCPMC3545017
OpenAlexW2077751837

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.