Evidence map›Paper›PMID 16421682›Full record

ArticleJournal of anesthesia2006

Effect of propofol on ropivacaine metabolism in human liver microsomes.

Yoshiko Osaka, Shinichi Inomata, Einosuke Tanaka, Takako Nakamura, Katsuya Honda, Masayuki Miyabe, Hidenori Toyooka, Makoto Tanaka

Abstract read
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In one paragraph

Article in Journal of anesthesia, 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
1.2field-weighted citation impact, top 19% 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

2 citing papers in PubMed, 11 citations in OpenAlex.

  1. Article
  2. 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

8 authors at 1 institution in 1 country.

Yoshiko OsakaGraduate School, University of Tsukuba, Tsukuba, Japan.
Shinichi Inomata
Einosuke Tanaka
Takako Nakamura
Katsuya Honda
Masayuki Miyabe
Hidenori Toyooka
Makoto Tanaka
University of Tsukuba · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

A combination of the general anesthetic propofol and epidural anesthesia with a local anesthetic is widely used. The metabolism of ropivacaine and that of lidocaine are mediated by similar P450 isoforms. Previously, propofol was found to inhibit the metabolism of lidocaine in vitro. Here we investigated whether propofol inhibits the metabolism of ropivacaine using human liver microsomes in vitro. Ropivacaine (6.0 micromol.l(-1)) as the substrate and propofol (1-100 micromol.l(-1)) were reacted together using human microsomes. The concentrations of ropivacaine and its major metabolite 2',6'-pipecoloxylidide (PPX) were measured using high-performance liquid chromatography. The metabolic activity of ropivacaine was reflected in the production of PPX. The inhibitory effects of propofol on ropivacaine metabolism were observed to be dose-dependent. The IC50 of propofol was 34.9 micromol.l(-1). Propofol shows a competitive inhibitory effect on the metabolism of ropivacaine (i.e., PPX production mediated by CYP3A4) in human CYP systems in vitro.

Indexed as

AmidesChromatography, High Pressure LiquidCytochrome P-450 CYP3ACytochrome P-450 Enzyme InhibitorsCytochrome P-450 Enzyme SystemDrug InteractionsHumansMicrosomes, LiverPropofolRopivacaineAmidesCYP3A4 protein, humanCYP3A protein, humanCytochrome P-450 CYP3ACytochrome P-450 Enzyme InhibitorsCytochrome P-450 Enzyme SystemPropofolRopivacaine

Identifiers

PMID16421682
OpenAlexW2036636825

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.