Evidence map›Paper›PMID 21832173›Full record

ArticleThe Journal of neuroscience : the official journal of the Society for Neuroscience2011

TRP vanilloid 2 knock-out mice are susceptible to perinatal lethality but display normal thermal and mechanical nociception.

Una Park, Nisha Vastani, Yun Guan, Srinivasa N Raja, Martin Koltzenburg, Michael J Caterina

Open access · bronzeAbstract readComparative Study
In one paragraph

Article in The Journal of neuroscience : the official journal of the Society for Neuroscience, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 127 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
127citing papers in PubMed, 1 pooled it
9.5field-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.

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

127 citing papers in PubMed, 1 synthesis or guideline pooled it, 234 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Article
  5. Review
  6. Review
  7. Article
  8. Lysophosphatidylcholine sensitizes TRPV2 by indirect mechanisms.Pflugers Archiv : European journal of physiology · 2025
    Article
  9. Review
  10. Article
  11. Article
  12. Article
  13. Structural insights into TRPV2 modulation by probenecid.Nature structural & molecular biology · 2025
    Article
  14. Article
  15. Review
  16. Review
  17. TRP Channels in Stroke.Neuroscience bulletin · 2024
    Review
  18. Article
  19. Article
  20. Review

67 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

6 authors at 4 institutions in 3 countries.

Una ParkDepartment of Biological Chemistry, Center for Sensory Biology, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, USA.
Nisha Vastani
Yun Guan
Srinivasa N Raja
Martin Koltzenburg
Michael J Caterina
Medical Research Council · GBJohns Hopkins Medicine · USJohns Hopkins University · USSensory (United States) · US

Funding

Role of TRPV channels in pain and temperature sensationR01NS051551 · NINDS · JOHNS HOPKINS UNIVERSITY · PI CATERINA, MICHAEL J · 2005 to 2009
$1.6M
Biotechnology and Biological Sciences Research CouncilMedical Research Council G0601943NINDS NIH HHS R01 NS051551
6 · The paper itself

Abstract

TRP vanilloid 2 (TRPV2) is a nonselective cation channel expressed prominently in medium- to large-diameter sensory neurons that can be activated by extreme heat (>52°C). These features suggest that TRPV2 might be a transducer of noxious heat in vivo. TRPV2 can also be activated by hypoosmolarity or cell stretch, suggesting potential roles in mechanotransduction. To address the physiological functions of TRPV2 in somatosensation, we generated TRPV2 knock-out mice and examined their behavioral and electrophysiological responses to heat and mechanical stimuli. TRPV2 knock-out mice showed reduced embryonic weight and perinatal viability. As adults, surviving knock-out mice also exhibited a slightly reduced body weight. TRPV2 knock-out mice showed normal behavioral responses to noxious heat over a broad range of temperatures and normal responses to punctate mechanical stimuli, both in the basal state and under hyperalgesic conditions such as peripheral inflammation and L5 spinal nerve ligation. Moreover, behavioral assays of TRPV1/TRPV2 double knock-out mice or of TRPV2 knock-out mice treated with resiniferatoxin to desensitize TRPV1-expressing afferents revealed no thermosensory consequences of TRPV2 absence. In line with behavioral findings, electrophysiological recordings from skin afferents showed that C-fiber responses to heat and C- and Aδ-fiber responses to noxious mechanical stimuli were unimpaired in the absence of TRPV2. The prevalence of thermosensitive Aδ-fibers was too low to permit comparison between genotypes. Thus, TRPV2 is important for perinatal viability but is not essential for heat or mechanical nociception or hypersensitivity in the adult mouse.

Indexed as

Hot TemperatureAnimalsAnimals, NewbornCalcium ChannelsFemaleGenetic Predisposition to DiseaseMaleMechanoreceptorsMiceMice, 129 StrainMice, Inbred C57BLMice, KnockoutPain MeasurementPhysical StimulationPregnancyPrenatal Exposure Delayed EffectsCalcium ChannelsTrpv2 protein, mouseTRPV Cation Channels

Identifiers

PMID21832173
PMCPMC3192449
OpenAlexW2033620602

What OpenQuestion holds

Textmetadata
LicenceTDM
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.