Evidence map›Paper›PMID 19367399›Full record

ArticleNaunyn-Schmiedeberg's archives of pharmacology2009

Topical antiseptics for the treatment of sore throat block voltage-gated neuronal sodium channels in a local anaesthetic-like manner.

Vanessa Buchholz, Martin Leuwer, Jörg Ahrens, Nilufar Foadi, Klaus Krampfl, Gertrud Haeseler

Abstract readComparative Study
PubMed Publisher
In one paragraph

Article in Naunyn-Schmiedeberg's archives of pharmacology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
0.9field-weighted citation impact, top 26% 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

13 citing papers in PubMed, 24 citations in OpenAlex.

  1. Trial
  2. Efficacy of a benzocaine lozenge in the treatment of uncomplicated sore throat.European archives of oto-rhino-laryngology : official journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery · 2012
    Trial
  3. Trial
  4. Article
  5. Article
  6. Review
  7. Article
  8. Article
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  10. Article
  11. Soft Tissue Augmentation with Silk Composite Graft.Maxillofacial plastic and reconstructive surgery · 2014
    Article
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  13. 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

6 authors at 2 institutions in 2 countries.

Vanessa BuchholzClinic for Anaesthesia and Critical Care Medicine, Hannover Medical School, Hannover, Germany.
Martin Leuwer
Jörg Ahrens
Nilufar Foadi
Klaus Krampfl
Gertrud Haeseler
Medizinische Hochschule Hannover · DEUniversity of Liverpool · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Lozenges for the treatment of sore throat provide relief of discomfort in cases of oral inflammation. This effect has not been fully explained so far. Here, we have examined the proposition that key components of pharmaceutical preparations for the treatment of sore throat which are routinely regarded antiseptics might have sodium channel-blocking, i.e. local anaesthetic-like effects. We investigated the effects of hexylresorcinol, amylmetacresol and dichloro-benzylalcohol on voltage-operated neuronal (Na(V)1.2) sodium channels heterologously expressed in HEK 293 cells in vitro. Hexylresorcinol, amylmetacresol and dichloro-benzylalcohol reversibly blocked depolarisation-induced whole-cell sodium inward currents. The half-maximum blocking concentrations (EC(50)) at -150 mV were 23.1, 53.6 and 661.6 microM, respectively. Block induced by hexylresorcinol and amylmetacresol was increased at depolarised potentials and use-dependent during trains of depolarisations applied at high frequency (100 Hz) indicating that both drugs bind more tightly to inactivated conformations of the channel. Estimates for the inactivated state affinity were 1.88 and 35 microM for hexylresorcinol and amylmetacresol, respectively. Hexylresorcinol and amylmetacresol are 10-20 fold more potent than the local anaesthetic lidocaine in blocking sodium inward current. Both drugs show an increased effect at depolarised membrane potentials or in conditions of high-frequency discharges.

Indexed as

Anesthetics, LocalAnimalsAnti-Infective Agents, LocalBenzyl AlcoholsCell LineCresolsDose-Response Relationship, DrugHexylresorcinolHumansLidocaineNAV1.2 Voltage-Gated Sodium ChannelNerve Tissue ProteinsNeuronsPharyngitisRatsSodium Channel BlockersamylmetacresolAnesthetics, LocalAnti-Infective Agents, LocalBenzyl AlcoholsCresolsdichlorobenzyl alcoholHexylresorcinolLidocaineNAV1.2 Voltage-Gated Sodium ChannelNerve Tissue ProteinsSCN2A protein, humanScn2A protein, ratSodium Channel BlockersSodium Channels

Identifiers

PMID19367399
OpenAlexW2082648508

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.