Evidence map›Paper›PMID 12915238›Full record

ArticleBrain research2003

Ultra-long antagonism of kappa opioid agonist-induced diuresis by intracisternal nor-binaltorphimine in monkeys.

M C H Ko, K J Willmont, H Lee, G S Flory, J H Woods

Open access · greenAbstract read
In one paragraph

Article in Brain research, 2003. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed
0.1field-weighted citation impact, top 67% 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

23 citing papers in PubMed, 28 citations in OpenAlex.

  1. Triazole 187 is a biased KOR agonist that suppresses itch without sedation and induces anxiolytic-like behaviors in mice.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2026
    Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. Impact of Pharmacological Manipulation of theThe Journal of pharmacology and experimental therapeutics · 2019
    Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Kappa Opioid Receptor Agonist and Brain Ischemia.Translational perioperative and pain medicine · 2014
    Article
  13. Article
  14. Review
  15. Article
  16. Article
  17. Article
  18. Article
  19. Review
  20. 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

5 authors at 2 institutions in 2 countries.

M C H KoDepartment of Pharmacology, University of Michigan Medical School, Ann Arbor, MI 48109, USA. mko@umich.edu
K J Willmont
H Lee
G S Flory
J H Woods
University of Michigan–Ann Arbor · USEwha Womans University · KR

Funding

Selective radiolabeled agonists /antagonists for opiate receptor subtypesP50DA000254 · NIDA · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI MOSBERG, HENRY ISAAC · 1985 to 2002
$5.0M
Narcotic Drug and Opioid Peptide Basic Research projectP01DA000254 · NIDA · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI WOODS, JAMES H · 2003 to 2006
$5.0M
Intrathecal Opioid-Induced PruritusR01DA013685 · NIDA · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI KO, MEI-CHUAN · 2001 to 2003
$735k
COGNITIVE INTERVENTION FOR DRUG ABUSING ADOLESCENTSK21DA000254 · NIDA · UNIVERSITY OF MINNESOTA TWIN CITIES · PI LATIMER, WILLIAM W · 1995 to 1999
–
NIDA NIH HHS DA-13685NIDA NIH HHS K21 DA000254NIDA NIH HHS P01 DA000254NIDA NIH HHS P50 DA000254NIDA NIH HHS R01 DA013685
6 · The paper itself

Abstract

Kappa opioid receptor (KOR) agonists such as U-50488H and bremazocine are analgesics and diuretics. In monkeys, the selective KOR antagonist, nor-binaltorphimine (nor-BNI), produces a long-lasting antagonism of the antinociceptive effects of U-50488H but not those of bremazocine, suggesting that KOR-mediated antinociception may occur through two distinct KORs. The aim of this study was to characterize the antagonist effect of nor-BNI against the diuretic effects of U-50488H and bremazocine in monkeys. Urine outputs were collected over 3 h subsequent to i.m. administration of KOR agonists. Both U-50488H (0.032-1 mg/kg) and bremazocine (0.00032-0.01 mg/kg) dose-dependently increased urine output and the diuretic effect reached a plateau at higher doses. The maximum effect of either U-50488H or bremazocine was approximately 15 ml/kg/3 h of urine. Pretreatment with intracisternal nor-BNI 0.32 mg significantly blocked both U-50488H (0.18 mg/kg)- and bremazocine (0.0032 mg/kg)-induced diuresis for 20 weeks. However, the same dose of nor-BNI 0.32 mg given subcutaneously was not effective. These results demonstrate that central KOR mediate KOR agonist-induced diuresis in monkeys. More important, this study provides functional evidence for a homogenous population of KOR underlying KOR-mediated diuresis and illustrates a unique pharmacological profile of nor-BNI-induced ultra-long KOR antagonism in vivo.

Indexed as

3,4-Dichloro-N-methyl-N-(2-(1-pyrrolidinyl)-cyclohexyl)-benzeneacetamide, (trans)-IsomerAnimalsBenzomorphansDiuresisFemaleInjections, IntraventricularMacaca mulattaMaleNaltrexoneNarcotic AntagonistsReceptors, Opioid, kappa3,4-Dichloro-N-methyl-N-(2-(1-pyrrolidinyl)-cyclohexyl)-benzeneacetamide, (trans)-IsomerBenzomorphansbremazocineNaltrexoneNarcotic AntagonistsnorbinaltorphimineReceptors, Opioid, kappa

Identifiers

PMID12915238
PMCPMC2863110
OpenAlexW1980320291

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.