Evidence map›Paper›PMID 35100605›Full record

ArticlePharmacology2022

Anesthetic Pharmacology of the Mint Extracts L-Carvone and Methyl Salicylate.

Robert J Brosnan, Kimberly Ramos, Antonio Jose de Araujo Aguiar, Alessia Cenani, Heather K Knych

Open access · hybridAbstract read
In one paragraph

Article in Pharmacology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
1.2field-weighted citation impact, top 25% 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

5 citing papers in PubMed, 13 citations in OpenAlex.

  1. Review
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  5. Molecules (Basel, Switzerland) · 2024
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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 2 countries.

Robert J BrosnanDepartment of Surgical and Radiological Sciences, School of Veterinary Medicine, University of California, Davis, California, USA.
Kimberly RamosDepartment of Animal Biology, University of California, Davis, California, USA.
Antonio Jose de Araujo AguiarDepartamento de Cirurgia Veterinária e Reprodução Animal, Universidade Estadual Paulista, Botucatu, Brazil.
Alessia CenaniDepartment of Surgical and Radiological Sciences, School of Veterinary Medicine, University of California, Davis, California, USA.
Heather K KnychCalifornia Animal Health and Food Safety Lab, Department of Molecular Biosciences, School of Veterinary Medicine, University of California, Davis, California, USA.
University of California, Davis · USCalifornia Department of Food and Agriculture · USUniversidade Estadual Paulista (Unesp) · BR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionHydrocarbons with sufficient water solubility allosterically modulate anesthetic-sensitive ion channels. Mint extracts L-carvone and methyl salicylate water solubility exceeds modulation cutoff values for γ-amino butyric acid type A (GABAA) receptors, N-methyl-D-aspartate (NMDA) receptors, and type-2 voltage-gated sodium (Nav1.2) channels. We hypothesized that mint extracts modulate these channels at concentrations that anesthetize rats.

methodsChannels were expressed separately in frog oocytes and studied using 2-electrode voltage clamp techniques at drug concentrations up to 10 mM. Normalized current effects were fit to Hill equations. Mint compounds were formulated in a lipid emulsion and administered IV to rats. When unresponsive to the tail clamp, rats were exsanguinated, and plasma drug concentrations were measured.

resultsBoth mint compounds caused concentration-dependent inhibition of all channels except for methyl salicylate which inhibited GABAA receptors at low concentrations and potentiated at high concentrations. Plasma drug concentrations in anesthetized rats were 7.9 mM for L-carvone and 2.7 mM for methyl salicylate. This corresponded to ≥53% NMDA receptor inhibition and ≥78% Nav1.2 channel inhibition by both compounds and 30% potentiation of GABAA receptors by methyl salicylate.

conclusionL-Carvone and methyl salicylate allosterically modulate cell receptor targets important to molecular actions of conventional anesthetics at concentrations that also induce general anesthesia in rats.

Indexed as

AnestheticsMenthaAnimalsCyclohexane MonoterpenesOocytesPlant ExtractsRatsReceptors, GABA-AReceptors, N-Methyl-D-AspartateSalicylatesXenopus laevisAnestheticscarvoneCyclohexane Monoterpenesmethyl salicylatePlant ExtractsReceptors, GABA-AReceptors, N-Methyl-D-AspartateSalicylatesAnesthesiaEuthanasiaN-Methyl-D-aspartateVoltage-gated sodium channelγ-Amino butyric acid type

Identifiers

PMID35100605
PMCPMC8985026
OpenAlexW4210249641

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.