Evidence map›Paper›PMID 32268932›Full record

ArticleJournal of the American Association for Laboratory Animal Science : JAALAS2020

Effects of Standard and Sustained-release Buprenorphine on the Minimum Alveolar Concentration of Isoflurane in C57BL/6 Mice.

Philip C LaTourette, Emily M David, Cholawat Pacharinsak, Katechan Jampachaisri, Jennifer C Smith, James O Marx

Open access · greenAbstract read
In one paragraph

Article in Journal of the American Association for Laboratory Animal Science : JAALAS, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
1.5field-weighted citation impact, top 17% 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

6 citing papers in PubMed, 13 citations in OpenAlex.

  1. Article
  2. Article
  3. A Review of Long-acting Parenteral Analgesics for Mice and Rats.Journal of the American Association for Laboratory Animal Science : JAALAS · 2022
    Review
  4. Use of Ketamine or Xylazine to Provide Balanced Anesthesia with Isoflurane in C57BL/6J Mice.Journal of the American Association for Laboratory Animal Science : JAALAS · 2022
    Article
  5. Review
  6. Effects of Oxygen Supplementation on Injectable and Inhalant Anesthesia in C57BL/6 Mice.Journal of the American Association for Laboratory Animal Science : JAALAS · 2021
    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 4 institutions in 2 countries.

Philip C LaTouretteUniversity Laboratory Animal Resources, University of Pennsylvania, Philadelphia, Pennsylvania; Department of Pathobiology, University of Pennsylvania School of Veterinary Medicine, Philadelphia, Pennsylvania.
Emily M DavidUniversity Laboratory Animal Resources, University of Pennsylvania, Philadelphia, Pennsylvania; Department of Pathobiology, University of Pennsylvania School of Veterinary Medicine, Philadelphia, Pennsylvania.
Cholawat PacharinsakDepartment of Comparative Medicine, Stanford University, Stanford, California.
Katechan JampachaisriDepartment of Mathematics, Naresuan University, Phitsanulok, Thailand.
Jennifer C SmithBioresources Department, Henry Ford Health System, Detroit, Michigan.
James O MarxUniversity Laboratory Animal Resources, University of Pennsylvania, Philadelphia, Pennsylvania; Department of Pathobiology, University of Pennsylvania School of Veterinary Medicine, Philadelphia, Pennsylvania;, Email: marx@upenn.edu.
University of Pennsylvania · USHenry Ford Health System · USNaresuan University · THStanford University · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Both standard and sustained-release injectable formulations of buprenorphine (Bup and BupSR, respectively) are used as preemptive analgesics, potentially affecting gas anesthetic requirements. This study tested the effects of Bup and BupSR on isoflurane requirements and confirmed that buprenorphine could reduce isoflurane requirements during a laparotomy in mice. We hypothesized that both Bup and BupSR would significantly decrease the required minimum alveolar concentration (MAC) of isoflurane. C57BL/6 mice received either isotonic crystalloid fluid (control), Bup (0.1 mg/kg), or BupSR (1.2 mg/kg) subcutaneously 10 min prior to the induction of anesthesia. Each anesthetized mouse was tested at 2 isoflurane concentrations. A 300-g noxious stimulus was applied at each isoflurane concentration, alternating between hindfeet. In addition, a subset of mice underwent terminal laparotomy or 60 min of anesthesia after injection with Bup, BupSR, or saline to ensure an appropriate surgical plane of anesthesia. Mice were maintained at the lowest isoflurane concentration that resulted in 100% of mice at a surgical plane from the aforementioned MAC experiments (control, 2.0%; Bup and BupSR, 1.7%). Analysis showed that both Bup and BupSR significantly decreased isoflurane requirements by 25.5% and 14.4%, respectively. The isoflurane MAC for the control injection was 1.80% ± 0.09%; whereas Bup and BupSR decreased MAC to 1.34% ± 0.08% and 1.54% ± 0.09%, respectively. Sex was not a significantly different between the injection groups during MAC determination. All of the mice that underwent surgery achieved a surgical plane of anesthesia on the prescribed regimen and recovered normally after discontinuation of isoflurane. Lastly, heart and respiratory rates did not differ between mice that underwent surgery and those that were anesthetized only. Bup and BupSR are MAC-sparing in male and female C57BL/6 mice and can be used for effective multimodal anesthesia.

Indexed as

Analgesics, OpioidAnesthetics, InhalationAnimalsBuprenorphineDelayed-Action PreparationsFemaleIsofluraneMaleMiceMice, Inbred C57BLPulmonary AlveoliReference StandardsRespiratory RateAnalgesics, OpioidAnesthetics, InhalationBuprenorphineDelayed-Action PreparationsIsoflurane

Identifiers

PMID32268932
PMCPMC7210738
OpenAlexW3016007542

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.