Evidence map›Paper›PMID 12967991›Full record

ArticleThe Journal of neuroscience : the official journal of the Society for Neuroscience2003

Activation of purinergic receptor subtypes modulates odor sensitivity.

Colleen C Hegg, Denise Greenwood, Wei Huang, Pengcheng Han, Mary T Lucero

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of neuroscience : the official journal of the Society for Neuroscience, 2003. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 54 papers.

0numbers the graph read from it
0cells of the map it votes in
54citing papers in PubMed
3.7field-weighted citation impact, top 7% 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

54 citing papers in PubMed, 115 citations in OpenAlex.

  1. Review
  2. Article
  3. Review
  4. Article
  5. Quantifying Peripheral Modulation of Olfaction by Trigeminal Agonists.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2023
    Article
  6. Article
  7. Review
  8. Article
  9. Review
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Purinergic Signaling in the Vertebrate Olfactory System.Frontiers in cellular neuroscience · 2019
    Review
  16. Article
  17. Article
  18. Purinergic neuron-glia interactions in sensory systems.Pflugers Archiv : European journal of physiology · 2014
    Review
  19. 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

5 authors at 2 institutions in 2 countries.

Colleen C HeggDepartment of Physiology, University of Utah, Salt Lake City, Utah 84108-1297, USA. c.hegg@m.cc.utah.edu
Denise Greenwood
Wei Huang
Pengcheng Han
Mary T Lucero
University of Utah · USUniversity of Auckland · NZ

Funding

FUNCTIONS OF PACAP IN OLFACTORY NEURONSR01DC002994 · NIDCD · UNIVERSITY OF UTAH · PI LUCERO, MARY T · 1996 to 2009
$2.4M
PHYSIOLOGY OF THE DEVELOPING OLFACTORY EPITHELIUMR01DC001418 · NIDCD · UNIVERSITY OF UTAH · PI MICHEL, WILLIAM CRAIG · 1998 to 2002
$560k
Purinergic Receptors in Olfactory SystemR03DC004953 · NIDCD · UNIVERSITY OF UTAH · PI HEGG, COLLEEN COSGROVE · 2001 to 2003
$225k
MECHANISMS OF OLFACTORY RECEPTOR NEURON ADAPTATIONR29DC001418 · NIDCD · UNIVERSITY OF UTAH · PI MICHEL, WILLIAM CRAIG · 1992 to 1996
–
NIDCD NIH HHS DC01418NIDCD NIH HHS DC02994NIDCD NIH HHS DC04953NIDCD NIH HHS R01 DC001418NIDCD NIH HHS R01 DC002994
6 · The paper itself

Abstract

Purinergic nucleotides, including ATP and adenosine, are important neuromodulators of peripheral auditory and visual sensory systems (Thorne and Housley, 1996). ATP released by the olfactory epithelium (OE) after noxious stimuli provides a physiological source for a neuromodulatory substance independent of efferent innervation. Here we show that multiple subtypes of purinergic receptors are differentially expressed in olfactory receptor neurons and sustentacular support cells. Activation of purinergic receptors evoked inward currents and increases in intracellular calcium in cultured mouse olfactory receptor neurons. A mouse olfactory epithelial slice preparation and confocal imaging were used to measure changes in intracellular calcium in response to odors, purinergic receptor (P2R) agonists, or combined odor + P2R agonists. Pharmacological studies show that both P2Y and P2X receptor activation by exogenous and endogenous ATP significantly reduces odor responsiveness. Moreover, purinergic receptor antagonists increase the odor-evoked calcium transient, providing direct evidence that endogenous ATP modulates odor sensitivity via activation of multiple purinergic receptor subtypes in olfactory receptor neurons. Odor activation of G-protein-coupled receptors results in increased cAMP production, opening of cyclic nucleotide-gated channels, influx of Ca2+ and Na+, depolarization of the membrane, and activation of voltage- and Ca2+-gated ion channels. On-cell current-clamp recordings of olfactory receptor neurons from neonatal mouse slices revealed that ATP reduced cyclic nucleotide-induced electrical responses. These data also support the idea that ATP modulates odor sensitivity in mammalian olfactory neurons. Peripheral ATP-mediated odor suppression is a novel mechanism for reduced olfactory sensitivity during exposure to olfactotoxins and may be a novel neuroprotective mechanism.

Indexed as

Adenosine DiphosphateAdenosine TriphosphateAnimalsCalciumCells, CulturedCyclic AMPCyclic GMPIn Vitro TechniquesMaleMembrane PotentialsMiceOlfactory MucosaOlfactory Receptor NeuronsPatch-Clamp TechniquesPyridoxal PhosphateRats8-bromocyclic GMPadenosine 5'-O-(2-thiodiphosphate)Adenosine DiphosphateAdenosine TriphosphateCalciumCyclic AMPCyclic GMPP2rx2 protein, mouseP2ry2 protein, mousePyridoxal Phosphatepyridoxal phosphate-6-azophenyl-2',4'-disulfonic acidReceptors, PurinergicReceptors, Purinergic P2Receptors, Purinergic P2X2Receptors, Purinergic P2Y2RNA, MessengerThionucleotides

Identifiers

PMID12967991
PMCPMC2976511
OpenAlexW1529840144

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.