Evidence mapPaperPMID 25752528Full record

ArticleScientific reports2015

Nicotinic acid is a common regulator of heat-sensing TRPV1-4 ion channels.

Linlin Ma, Bo Hyun Lee, Heather Clifton, Saul Schaefer, Jie Zheng

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
2.2field-weighted citation impact, top 14% 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

15 citing papers in PubMed, 27 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. Review
  5. TRPV3: Structure, Diseases and Modulators.Molecules (Basel, Switzerland) · 2023
    Review
  6. Article
  7. Review
  8. Analysis of the gut microbiome to validate a mouse model of pellagra.Bioscience of microbiota, food and health · 2022
    Article
  9. Article
  10. Review
  11. Article
  12. Article
  13. Review
  14. Article
  15. 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 1 institution in 2 countries.

Linlin Ma1] Department of Physiology and Membrane Biology, University of California School of Medicine, Davis, California, USA [2] Institute for Molecular Bioscience, University of Queensland, St Lucia, QLD 4072, Australia.
Bo Hyun LeeDepartment of Physiology and Membrane Biology, University of California School of Medicine, Davis, California, USA.
Heather CliftonDivision of Cardiovascular Medicine, University of California School of Medicine, Davis, California, USA.
Saul SchaeferDivision of Cardiovascular Medicine, University of California School of Medicine, Davis, California, USA.
Jie ZhengDepartment of Physiology and Membrane Biology, University of California School of Medicine, Davis, California, USA.
University of California, Davis · US

Funding

Molecular Mechanism of pH Regulation of TRPV1 ActivationR01NS072377 · NINDS · UNIVERSITY OF CALIFORNIA AT DAVIS · PI ZHENG, JIE · 2011 to 2015
$1.7M
NINDS NIH HHS R01 NS072377NINDS NIH HHS R01NS072377
6 · The paper itself

Abstract

Nicotinic acid (NA, a.k.a. vitamin B3 or niacin) can reduce blood cholesterol and low-density lipoproteins whereas increase high-density lipoproteins. However, when NA is used to treat dyslipidemias, it causes a strong side effect of cutaneous vasodilation, commonly called flushing. A recent study showed that NA may cause flushing by lowering activation threshold temperature of the heat-sensitive capsaicin receptor TRPV1 ion channel, leading to its activation at body temperature. The finding calls into question whether NA might also interact with the homologous heat-sensitive TRPV2-4 channels, particularly given that TRPV3 and TRPV4 are abundantly expressed in keratinocytes of the skin where much of the flushing response occurs. We found that NA indeed potentiated TRPV3 while inhibited TRPV2 and TRPV4. Consistent with these gating effects, NA lowered the heat-activation threshold of TRPV3 but elevated that of TRPV4. We further found that activity of TRPV1 was substantially prolonged by extracellular NA, which may further enhance the direct activation effect. Consistent with the broad gating effect on TRPV1-4 channels, evidence from the present study hints that NA may share the same activation pathway as 2-aminoethoxydiphenyl borate (2-APB), a common agonist for these TRPV channels. These findings shed new light on the molecular mechanism underlying NA regulation of TRPV channels.

Indexed as

Body TemperatureBoron CompoundsCalcium ChannelsGanglia, SpinalGene Expression RegulationHEK293 CellsHumansKeratinocytesMetabolic Networks and PathwaysNiacinPatch-Clamp TechniquesSkinTRPV Cation Channels2-aminoethoxydiphenyl borateBoron CompoundsCalcium ChannelsNiacinTRPV1 protein, mouseTrpv2 protein, mouseTrpv3 protein, mouseTrpv4 protein, mouseTRPV Cation Channels

Identifiers

PMID25752528
PMCPMC4894441
OpenAlexW1998071343

What Socratic holds

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LicenceCC BY
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 Socratic graph.