Evidence map›Paper›PMID 18809334›Full record

ArticleBioorganic & medicinal chemistry2008

Structure-activity relationships of 1,4-dihydropyridines that act as enhancers of the vanilloid receptor 1 (TRPV1).

Eun Joo Roh, Jason M Keller, Zoltan Olah, Michael J Iadarola, Kenneth A Jacobson

Open access · greenAbstract read
In one paragraph

Article in Bioorganic & medicinal chemistry, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
0.8field-weighted citation impact, top 34% 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

12 citing papers in PubMed, 30 citations in OpenAlex.

  1. Anticancer Activity of Region B Capsaicin Analogs.Journal of medicinal chemistry · 2023
    Review
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Review
  8. Article
  9. Article
  10. Small molecule positive allosteric modulation of TRPV1 activation by vanilloids and acidic pH.The Journal of pharmacology and experimental therapeutics · 2012
    Article
  11. Review
  12. 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 3 institutions in 1 country.

Eun Joo RohMolecular Recognition Section, Laboratory of Bioorganic Chemistry, National Institute of Diabetes and Digestive and Kidney Diseases, Building 8A, Room B1A-19 LBC, Bethesda, MD 20892-0810, USA.
Jason M Keller
Zoltan Olah
Michael J Iadarola
Kenneth A Jacobson
National Institute of Diabetes and Digestive and Kidney Diseases · USNational Institutes of Health · USNational Institute of Dental and Craniofacial Research · US

Funding

Integrative And Molecular Studies Of Pain And Pain ControlZIADE000688 · NIDCR · NATIONAL INSTITUTE OF DENTAL & CRANIOFACIAL RESEARCH · PI IADAROLA, MICHAEL J. · 2009 to 2012
$4.0M
Development of Drugs Acting at Ion ChannelsZIADK031127 · NIDDK · NATIONAL INSTITUTE OF DIABETES AND DIGESTIVE AND KIDNEY DISEASES · PI JACOBSON, KENNETH ALAN · 2009 to 2025
$3.9M
Integrative/Molecular Studies Of Pain And Pain ControlZ01DE000688 · NIDCR · NATIONAL INSTITUTE OF DENTAL & CRANIOFACIAL RESEARCH · PI IADAROLA, MICHAEL J. · 1997 to 2008
$2.8M
Development of Drugs Acting at Ion ChannelsZ01DK031127 · NIDDK · NATIONAL INSTITUTE OF DIABETES AND DIGESTIVE AND KIDNEY DISEASES · PI JACOBSON, KENNETH ALAN · 2007 to 2008
$385k
Intramural NIH HHS Z01 DE000688Intramural NIH HHS Z01 DK031127Intramural NIH HHS Z99 DK999999
6 · The paper itself

Abstract

Vanilloid agonists such as capsaicin activate ion flux through the TRPV1 channel, a heat- and ligand-gated cation channel that transduces painful chemical or thermal stimuli applied to peripheral nerve endings in skin or deep tissues. We have probed the SAR of a variety of 1,4-dihydropyridine (DHP) derivatives as novel 'enhancers' of TRPV1 activity by examining changes in capsaicin-induced elevations in (45)Ca(2+)-uptake in either cells ectopically expressing TRPV1 or in cultured dorsal root ganglion (DRG) neurons. The enhancers increased the maximal capsaicin effect on (45)Ca(2+)-uptake by typically 2- to 3-fold without producing an action when used alone. The DHP enhancers contained 6-aryl substitution and small alkyl groups at the 1 and 4 positions, and a 3-phenylalkylthioester was tolerated. Levels of free intracellular Ca(2+), as measured by calcium imaging, were also increased in DRG neurons when exposed to the combination of capsaicin and the most efficacious enhancer 23 compared to capsaicin alone. Thus, DHPs can modulate TRPV1 channels in a positive fashion.

Indexed as

AnimalsApraxia, IdeomotorCells, CulturedDihydropyridinesGanglia, SpinalMiceMolecular StructureRatsStructure-Activity RelationshipTRPV Cation Channels1,4-dihydropyridineDihydropyridinesTRPV Cation Channels

Identifiers

PMID18809334
PMCPMC2613801
OpenAlexW2041754190

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.