Evidence map›Paper›PMID 38061987›Full record

ArticleJournal of enzyme inhibition and medicinal chemistry2023

A method for the efficient evaluation of substrate-based cholinesterase imaging probes for Alzheimer's disease.

Sultan Darvesh, Scott Banfield, Maeve Dufour, Katrina L Forrestall, Hillary Maillet, G Andrew Reid, Dane Sands, Ian R Pottie

Open access · goldAbstract read
In one paragraph

Article in Journal of enzyme inhibition and medicinal chemistry, 2023. 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
1.7field-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, 7 citations in OpenAlex.

  1. A phase 1, safety, tolerability, and pharmacokinetics study of bisnorcymserine, a highly selective inhibitor of butyrylcholinesterase.Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics · 2026
    Trial
  2. Article
  3. Article
  4. Article
  5. Biomarkers of Pesticide Exposure in a Traditional Brazilian Amazon Community.International journal of environmental research and public health · 2024
    Article
  6. Review
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 2 countries.

Sultan DarveshDepartment of Medical Neuroscience, Dalhousie University, Halifax, Nova Scotia, Canada.
Scott BanfieldDepartment of Medical Neuroscience, Dalhousie University, Halifax, Nova Scotia, Canada.
Maeve DufourDepartment of Medical Neuroscience, Dalhousie University, Halifax, Nova Scotia, Canada.
Katrina L ForrestallDepartment of Medical Neuroscience, Dalhousie University, Halifax, Nova Scotia, Canada.
Hillary MailletDepartment of Medical Neuroscience, Dalhousie University, Halifax, Nova Scotia, Canada.
G Andrew ReidDepartment of Medical Neuroscience, Dalhousie University, Halifax, Nova Scotia, Canada.
Dane SandsDepartment of Medical Neuroscience, Dalhousie University, Halifax, Nova Scotia, Canada.
Ian R PottieDepartment of Chemistry and Physics, Mount St. Vincent University, Halifax, Nova Scotia, Canada.
Dalhousie University · CAMount Saint Vincent University · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Cholinesterase (ChE) enzymes have been identified as diagnostic markers for Alzheimer disease (AD). Substrate-based probes have been synthesised to detect ChEs but they have not detected changes in ChE distribution associated with AD pathology. Probes are typically screened using spectrophotometric methods with pure enzyme for specificity and kinetics. However, the biochemical properties of ChEs associated with AD pathology are altered. The present work was undertaken to determine whether the Karnovsky-Roots (KR) histochemical method could be used to evaluate probes at the site of pathology. Thirty thioesters and esters were synthesised and evaluated using enzyme kinetic and KR methods. Spectrophotometric methods demonstrated all thioesters were ChE substrates, yet only a few provided staining in the brain with the KR method. Esters were ChE substrates with interactions with brain ChEs. These results suggest that the KR method may provide an efficient means to screen compounds as probes for imaging AD-associated ChEs.

Indexed as

Alzheimer DiseaseCholinesterasesAcetylcholinesteraseBrainCholinesterase InhibitorsHumansTaurine2-(N-cyclohexylamino)ethanesulfonic acidAcetylcholinesteraseCholinesterase InhibitorsCholinesterasesTaurineacetylcholinesteraseAlzheimer’s diseaseButyrylcholinesteraseneuroimagingradioligands

Identifiers

PMID38061987
PMCPMC10294744
OpenAlexW4382136890

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.