Evidence map›Paper›PMID 19591852›Full record

ArticleNeuropharmacology2009

Salvinorin A and derivatives: protection from metabolism does not prolong short-term, whole-brain residence.

Jacob M Hooker, Thomas A Munro, Cécile Béguin, David Alexoff, Colleen Shea, Youwen Xu, Bruce M Cohen

Open access · greenAbstract read
In one paragraph

Article in Neuropharmacology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed
0.7field-weighted citation impact, top 34% 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

29 citing papers in PubMed, 54 citations in OpenAlex.

  1. Trial
  2. Review
  3. Review
  4. Article
  5. Article
  6. Article
  7. Review
  8. Applications of chemogenetics in non-human primates.Current opinion in pharmacology · 2022
    Review
  9. Chemogenetics as a neuromodulatory approach to treating neuropsychiatric diseases and disorders.Molecular therapy : the journal of the American Society of Gene Therapy · 2022
    Review
  10. Strategies for DevelopingThe Journal of pharmacology and experimental therapeutics · 2020
    Review
  11. Review
  12. Development and In Vivo Evaluation of a κ-Opioid Receptor Agonist as a PET Radiotracer with Superior Imaging Characteristics.Journal of nuclear medicine : official publication, Society of Nuclear Medicine · 2019
    Article
  13. Review
  14. Article
  15. A review of salvinorin analogs and their kappa-opioid receptor activity.Bioorganic & medicinal chemistry letters · 2018
    Review
  16. Article
  17. Review
  18. Review
  19. Selective Manipulation of Neural Circuits.Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics · 2016
    Review
  20. Immediate and Persistent Effects of Salvinorin A on the Kappa Opioid Receptor in Rodents, Monitored In Vivo with PET.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2015
    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

7 authors at 3 institutions in 1 country.

Jacob M HookerMedical Department, Brookhaven National Laboratory, Upton, NY 11973, USA. hooker@bnl.gov
Thomas A Munro
Cécile Béguin
David Alexoff
Colleen Shea
Youwen Xu
Bruce M Cohen
Brookhaven National Laboratory · USHarvard University · USMcLean Hospital · US

Funding

New methods for carbon-11 radiotracer synthesis & application to NMDA PET imagingF32EB008320 · NIBIB · BROOKHAVEN SCIENCE ASSOC-BROOKHAVEN LAB · PI HOOKER, JACOB M. · 2007 to 2009
$96k
NIBIB NIH HHS 1F32EB008320-01NIBIB NIH HHS F32 EB008320
6 · The paper itself

Abstract

Salvinorin A (SA) is a potent kappa opioid agonist with a brief duration of action. Consistent with this, our previous positron emission tomography (PET) studies of carbon-11 labeled SA showed that brain levels decrease rapidly after intravenous administration. SA is rapidly metabolized, giving the much less potent salvinorin B (SB), which is presumed to be responsible in part for SA's brief duration of action. To test this, we labeled the metabolically stable methyl ester of SA and SB with carbon-11 and compared their pharmacokinetics by PET imaging after intravenous administration to baboons. Labeling of salvinorin B ethoxymethyl ether (EOM-SB), a derivative with greater potency and resistance to metabolism, provided an additional test of the role of metabolism in brain efflux. Plasma analysis confirmed that SB and EOM-SB exhibited greater metabolic stability than SA. However, the three compounds exhibited very similar pharmacokinetics in brain, entering and exiting rapidly. This suggests that metabolism is not solely responsible for the brief brain residence time of SA. We determined that whole-brain concentrations of EOM-SB declined more slowly than SA after intraperitoneal administration in rodents. This is likely due to a combination in EOM-SB's increased metabolic stability and its decreased plasma protein affinity. Our results suggest that protecting salvinorin A derivatives from metabolism will prolong duration of action, but only when administered by routes giving slow absorption.

Indexed as

AnimalsBrainCarbon RadioisotopesCentral Nervous System AgentsDiterpenesDiterpenes, ClerodaneFemaleInjections, IntraperitonealInjections, IntravenousKineticsMalePapio anubisPositron-Emission TomographyRatsRats, Sprague-DawleyCarbon RadioisotopesCentral Nervous System AgentsDiterpenesDiterpenes, Clerodanesalvinorin Asalvinorin Bsalvinorin B ethoxymethyl ether

Identifiers

PMID19591852
PMCPMC2745083
OpenAlexW2083758530

What OpenQuestion holds

Textmetadata
LicenceTDM
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.