Evidence map›Paper›PMID 23076872›Full record

ReviewAmerican journal of physiology. Regulatory, integrative and comparative physiology2012

The unsilent majority-TRPV1 drives "spontaneous" transmission of unmyelinated primary afferents within cardiorespiratory NTS.

Michael C Andresen, Mackenzie E Hofmann, Jessica A Fawley

Abstract readReview
In one paragraph

Review in American journal of physiology. Regulatory, integrative and comparative physiology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed
2.1field-weighted citation impact, top 16% 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

29 citing papers in PubMed, 41 citations in OpenAlex.

  1. Article
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  3. Article
  4. Article
  5. 5-HTBrain research · 2019
    Article
  6. Article
  7. Article
  8. Review
  9. Article
  10. Article
  11. Article
  12. Article
  13. Distinct Calcium Sources Support Multiple Modes of Synaptic Release from Cranial Sensory Afferents.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2016
    Article
  14. Review
  15. Article
  16. Genetic and pharmacological evidence for low-abundance TRPV3 expression in primary vagal afferent neurons.American journal of physiology. Regulatory, integrative and comparative physiology · 2016
    Article
  17. Central neural control of thermoregulation and brown adipose tissue.Autonomic neuroscience : basic & clinical · 2016
    Review
  18. Article
  19. Article
  20. Central administration of nicotine suppresses tracheobronchial cough in anesthetized cats.Journal of applied physiology (Bethesda, Md. : 1985) · 2015
    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.

Michael C AndresenDepartment of Physiology and Pharmacology, Oregon Health and Science University, Portland, OR 97239-3098, USA. andresen.ohsu@gmail.com
Mackenzie E Hofmann
Jessica A Fawley
Oregon Health & Science University · US

Funding

Central TRPV1 in Cardiovascular RegulationR01HL105703 · NHLBI · OREGON HEALTH & SCIENCE UNIVERSITY · PI ANDRESEN, MICHAEL CHRISTIAN · 2011 to 2014
$1.5M
TRPV1 Function at Laryngeal Labeled NTS NeuronsF32HL112419 · NHLBI · OREGON HEALTH & SCIENCE UNIVERSITY · PI HOFMANN, MACKENZIE E · 2012 to 2014
$163k
NHLBI NIH HHS F32 HL112419NHLBI NIH HHS HL-105703NHLBI NIH HHS R01 HL105703
6 · The paper itself

Abstract

Cranial primary afferent sensory neurons figure importantly in homeostatic control of visceral organ systems. Of the two broad classes of visceral afferents, the role of unmyelinated or C-type class remains poorly understood. This review contrasts key aspects of peripheral discharge properties of C-fiber afferents and their glutamate transmission mechanisms within the solitary tract nucleus (NTS). During normal prevailing conditions, most information arrives at the NTS through myelinated A-type nerves. However, most of visceral afferent axons (75-90%) in NTS are unmyelinated, C-type axons. Centrally, C-type solitary tract (ST) afferent terminals have presynaptic transient receptor potential vanilloid type 1 (TRPV1) receptors. Capsaicin activation of TRPV1 blocks phasic or synchronous release of glutamate but facilitates release of glutamate from a separate pool of vesicles. This TRPV1-operated pool of vesicles is active at normal temperatures and is responsible for actively driving a 10-fold higher release of glutamate at TRPV1 compared with TRPV1- terminals even in the absence of afferent action potentials. This novel TRPV1 mechanism is responsible for an additional asynchronous release of glutamate that is not present in myelinated terminals. The NTS is rich with presynaptic G protein-coupled receptors, and the implications of TRPV1-operated glutamate offer unique targets for signaling in C-type sensory afferent terminals from neuropeptides, inflammatory mediators, lipid metabolites, cytokines, and cannabinoids. From a homeostatic view, this combination could have broad implications for integration in chronic pathological disturbances in which the numeric dominance of C-type endings and TRPV1 would broadly disturb multisystem control mechanisms.

Indexed as

Action PotentialsAnimalsGlutamatesHumansMiceMice, KnockoutModels, AnimalNerve Fibers, UnmyelinatedNeurons, AfferentSolitary NucleusSynaptic TransmissionTRPV Cation ChannelsGlutamatesTRPV1 protein, humanTRPV1 protein, mouseTRPV1 receptorTRPV Cation Channels

Identifiers

PMID23076872
PMCPMC3532589
OpenAlexW1980010331

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.