Evidence map›Paper›PMID 12011470›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2002

Anticonvulsant activity of a nonpeptide galanin receptor agonist.

Külliki Saar, Andrey M Mazarati, Riina Mahlapuu, Gerd Hallnemo, Ursel Soomets, Kalle Kilk, Sven Hellberg, Margus Pooga, Bo-Ragnar Tolf, Tiejun S Shi and 4 more

Abstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2002. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 42 papers.

0numbers the graph read from it
0cells of the map it votes in
42citing papers in PubMed
4.2field-weighted citation impact, top 5% 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

42 citing papers in PubMed, 129 citations in OpenAlex.

  1. Six-Fold Methyl Internal Rotation andThe journal of physical chemistry. A · 2026
    Article
  2. Article
  3. Review
  4. Sudden Unexpected Death in Epilepsy: Central Respiratory Chemoreception.International journal of molecular sciences · 2025
    Review
  5. Assessment of resveratrol on diabetes of zebrafish (Journal of diabetes and metabolic disorders · 2022
    Article
  6. Article
  7. Article
  8. Observational
  9. Insights into Potential Targets for Therapeutic Intervention in Epilepsy.International journal of molecular sciences · 2020
    Review
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Review
  17. Article
  18. Article
  19. Galanin receptors and ligands.Frontiers in endocrinology · 2012
    Article
  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

14 authors at 1 institution in 1 country.

Külliki SaarDepartment of Neurochemistry and Neurotoxicology, Stockholm University, SE-10691 Stockholm, Sweden.
Andrey M Mazarati
Riina Mahlapuu
Gerd Hallnemo
Ursel Soomets
Kalle Kilk
Sven Hellberg
Margus Pooga
Bo-Ragnar Tolf
Tiejun S Shi
Tomas Hökfelt
Claude Wasterlain
Tamas Bartfai
Ulo Langel
University of Tartu · EE

Funding

BRAIN DEVELOPMENT IN EXPERIMENTAL EPILEPSY: STATUSR01NS013515 · NINDS · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI WASTERLAIN, CLAUDE G · 1986 to 2006
$2.2M
NINDS NIH HHS R01 NS013515
6 · The paper itself

Abstract

Galanin is a neuropeptide with a wide variety of biological functions, including that of a strong endogenous anticonvulsant. No nonpeptide ligands, capable of activating galanin receptors, are available today. Based on known pharmacophores of galanin, a combinatorial library was designed, synthesized, and screened at the rat hippocampal galanin receptor. A low molecular weight galanin receptor agonist, 7-((9-fluorenylmethoxycarbonyl)cyclohexylalanyllysyl)amino-4-methylcoumarin (galnon) was found to displace (125)I-galanin with micromolar affinity at Bowes cellular and rat hippocampal membranes. Autoradiographic binding assay on rat spinal cord sections confirmed the ability of galnon to displace (125)I-galanin from its binding sites. Galnon inhibited adenylate cyclase activity, suggesting an agonist action at galanin receptors. When injected i.p. galnon reduced the severity and increased the latency of pentylenetetrazole-induced seizures in mice and reversed the proconvulsant effects of the galanin receptor antagonist M35, injected into a lateral ventricle. Intrahippocampal injection of galnon also shortened the duration of self-sustaining status epilepticus in rats, confirming its agonist properties in vivo. Pretreatment of rats with antisense peptide nucleic acid targeted to galanin receptor type 1 mRNA abolished the effect of galnon, suggesting mediation of its anticonvulsant properties through this receptor subtype. These findings introduce a systemically active nonpeptide galanin agonist anticonvulsant.

Indexed as

Adenylyl Cyclase InhibitorsAnimalsAnticonvulsantsCoumarinsDisease Models, AnimalHippocampusLigandsMaleMiceMice, Inbred C57BLMolecular StructureOligodeoxyribonucleotides, AntisensePeptidesRatsRats, WistarReceptor, Galanin, Type 17-((9-fluorenylmethoxycarbonyl)cyclohexylalanyllysyl)amino-4-methylcoumarinAdenylyl Cyclase InhibitorsAnticonvulsantsCoumarinsLigandsOligodeoxyribonucleotides, AntisensePeptidesReceptor, Galanin, Type 1Receptors, GalaninReceptors, Neuropeptide

Identifiers

PMID12011470
PMCPMC124541
OpenAlexW1977251490

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.