Evidence map›Paper›PMID 32820390›Full record

ArticlePsychopharmacology2020

Behavioral effects of benzylideneoxymorphone (BOM), a low efficacy µ opioid receptor agonist and a δ opioid receptor antagonist.

Sanjana Mada, Lisa R Gerak, Amélie Soyer, David R Maguire, Zehua Hu, Vanessa Minervini, Christopher W Cunningham, Charles P France

Abstract read
PubMed Publisher
In one paragraph

Article in Psychopharmacology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
0.6field-weighted citation impact, top 32% 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

3 citing papers in PubMed, 7 citations in OpenAlex.

  1. Trial
  2. Article
  3. 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 2 institutions in 1 country.

Sanjana MadaDepartment of Pharmacology, The University of Texas Health Science Center at San Antonio, 7703 Floyd Curl Dr.-mail code 7764, San Antonio, TX, 78229-3900, USA.
Lisa R GerakDepartment of Pharmacology, The University of Texas Health Science Center at San Antonio, 7703 Floyd Curl Dr.-mail code 7764, San Antonio, TX, 78229-3900, USA.
Amélie SoyerDepartment of Pharmacology, The University of Texas Health Science Center at San Antonio, 7703 Floyd Curl Dr.-mail code 7764, San Antonio, TX, 78229-3900, USA.
David R MaguireDepartment of Pharmacology, The University of Texas Health Science Center at San Antonio, 7703 Floyd Curl Dr.-mail code 7764, San Antonio, TX, 78229-3900, USA.
Zehua HuDepartment of Pharmacology, The University of Texas Health Science Center at San Antonio, 7703 Floyd Curl Dr.-mail code 7764, San Antonio, TX, 78229-3900, USA.
Vanessa MinerviniDepartment of Pharmacology, The University of Texas Health Science Center at San Antonio, 7703 Floyd Curl Dr.-mail code 7764, San Antonio, TX, 78229-3900, USA.
Christopher W CunninghamDepartment of Pharmaceutical Sciences, School of Pharmacy, Concordia University Wisconsin, 12800 N. Lake Shore Drive, PH 239, Mequon, WI, 53097, USA.
Charles P FranceDepartment of Pharmacology, The University of Texas Health Science Center at San Antonio, 7703 Floyd Curl Dr.-mail code 7764, San Antonio, TX, 78229-3900, USA. france@uthscsa.edu.ORCID http://orcid.org/0000-0001-5157-6307
The University of Texas Health Science Center at San Antonio · USConcordia University Wisconsin · US

Funding

Welch Foundation ZA-0039
6 · The paper itself

Abstract

rationaleOpioids remain the drugs of choice for treating moderate to severe pain, although adverse effects often limit use. Drugs acting concomitantly as agonists at μ opioid receptors and antagonists at δ opioid receptors produce antinociceptive effects with a reduced profile of adverse effects; one such drug, benzylideneoxymorphone (BOM), might further limit adverse effects because it appears to have lower pharmacological efficacy than other μ opioid receptor agonists.

objectivesThe current study compared the acute behavioral effects of BOM with the effects of other μ opioid receptor agonists.

methodsDiscriminative stimulus and rate-decreasing effects were studied in 1 group of 7 rats discriminating 3.2 mg/kg morphine while responding under a fixed-ratio 10 schedule of food presentation. Antinociceptive effects were determined in a second group of 8 rats using a warm water tail withdrawal procedure. Reinforcing effects were evaluated in a third group of 12 rats with a history of remifentanil self-administration.

resultsBOM produced morphine-lever responding and both discriminative stimulus and rate-decreasing effects were antagonized by naltrexone. BOM did not markedly increase tail-withdrawal latencies from water maintained at 50 °C and did not substantially attenuate the antinociceptive effects of morphine. BOM was not self-administered and did not change remifentanil self-administration.

conclusionsSome effects of BOM (e.g., discriminative stimulus effects) appear to be mediated by μ opioid receptors; however, BOM is not self-administered by rats, suggesting that it might have limited abuse liability and a reduced profile of adverse effects compared with currently prescribed opioids.

Indexed as

Analgesics, OpioidAnimalsDose-Response Relationship, DrugMaleMorphineNaltrexoneNarcotic AntagonistsOxymorphonePainPain MeasurementRatsReceptors, Opioid, deltaReceptors, Opioid, muReinforcement, PsychologySelf Administration7-benzylideneoxymorphoneAnalgesics, OpioidMorphineNaltrexoneNarcotic AntagonistsOxymorphoneReceptors, Opioid, deltaReceptors, Opioid, muAntinociceptionBenzylideneoxymorphoneBOMDrug discriminationRatsSelf-administration

Identifiers

PMID32820390
OpenAlexW3064361820

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.