Evidence map›Paper›PMID 24557104›Full record

ArticleAnesthesia and analgesia2014

The pharmacology of cyclopropyl-methoxycarbonyl metomidate: a comparison with propofol.

Rile Ge, Ervin Pejo, Hilary Gallin, Spencer Jeffrey, Joseph F Cotten, Douglas E Raines

Open access · greenAbstract readComparative Study
In one paragraph

Article in Anesthesia and analgesia, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
5.0field-weighted citation impact, top 5% 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

18 citing papers in PubMed, 35 citations in OpenAlex.

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  10. Anesthetic pretreatment confers thermotolerance on Saccharomyces cerevisiae yeast.Biochemical and biophysical research communications · 2020
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  18. Etomidate derivatives: Novel pharmaceutical agents in anesthesia.Journal of anaesthesiology, clinical pharmacology
    Review
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 3 institutions in 1 country.

Rile GeFrom the *Department of Anesthesia, Perioperative and Pain Medicine, Boston Children's Hospital; †Department of Anesthesia, Critical Care, and Pain Medicine, Massachusetts General Hospital, Boston, Massachusetts; and ‡Washington University School of Medicine, St. Louis, Missouri.
Ervin Pejo
Hilary Gallin
Spencer Jeffrey
Joseph F Cotten
Douglas E Raines
Massachusetts General Hospital · USBoston Children's Hospital · USWashington University in St. Louis · US

Funding

Etomidate Analogues as Safer General AnestheticsR01GM087316 · NIGMS · MASSACHUSETTS GENERAL HOSPITAL · PI RAINES, DOUGLAS E · 2010 to 2016
$3.2M
TASK Potassium Channel Antagonists to Treat Opioid Depression of BreathingR01HL117871 · NHLBI · MASSACHUSETTS GENERAL HOSPITAL · PI COTTEN, JOSEPH F · 2013 to 2017
$2.1M
Volatile Anesthetic Regulation of TASK Tandem Pore Potassium ChannelsK08GM083216 · NIGMS · MASSACHUSETTS GENERAL HOSPITAL · PI COTTEN, JOSEPH F · 2008 to 2012
$757k
NHLBI NIH HHS R01 HL117871NIGMS NIH HHS K08 GM083216NIGMS NIH HHS K08-GM083216NIGMS NIH HHS R01 GM087316NIGMS NIH HHS R01-GM087316
6 · The paper itself

Abstract

backgroundCyclopropyl-methoxycarbonyl metomidate (CPMM) is a "soft" etomidate analogue currently being developed as a propofol alternative for anesthetic induction and maintenance.

methodsWe compared the potencies of CPMM and propofol by assessing their abilities to directly activate α1(L264T)β3γ2 gamma-aminobutyric acid type A (GABAA) receptors and induce loss of righting reflexes in tadpoles. We also measured the rates of encephalographic recovery in rats after CPMM and propofol infusions ranging in duration from 5 to 120 minutes.

resultsCPMM and propofol activate GABAA receptors and induce loss of righting reflexes in tadpoles with respective 50% effective concentrations (EC50s) of 3.8 ± 0.4 and 3.9 ± 0.2 μM (GABAA receptor) and 2.6 ± 0.19 and 1.3 ± 0.04 μM (tadpole). Encephalographic recovery after prolonged infusion was faster with CPMM and lacked propofol's context sensitivity.

conclusionCPMM and propofol have similar potencies in GABAA receptors and tadpoles; however, CPMM provides more rapid and predictable recovery than propofol, particularly after prolonged infusion.

Indexed as

Anesthetics, IntravenousAnimalsElectroencephalographyEtomidateFemaleLarvaMalePropofolRatsRats, Sprague-DawleyReceptors, GABA-AReflex, RightingXenopus laevisAnesthetics, IntravenousEtomidatemetomidatePropofolReceptors, GABA-A

Identifiers

PMID24557104
PMCPMC6310170
OpenAlexW2317251637

What OpenQuestion holds

Textmetadata
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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.