Evidence map›Paper›PMID 34308635›Full record

ArticleJournal of natural products2021

Plant-Derived Cyclotides Modulate κ-Opioid Receptor Signaling.

Edin Muratspahić, Nataša Tomašević, Shahrooz Nasrollahi-Shirazi, Jasmin Gattringer, Fabiola Susanna Emser, Michael Freissmuth, Christian W Gruber

Open access · hybridAbstract read
In one paragraph

Article in Journal of natural products, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
1.3field-weighted citation impact, top 20% 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

15 citing papers in PubMed, 24 citations in OpenAlex.

  1. Advances in Cyclic Peptides Targeting G Protein-Coupled Receptors.Chembiochem : a European journal of chemical biology · 2026
    Review
  2. Opioid Signaling in Multiple Sclerosis: Emerging Targets for Repair.International journal of molecular sciences · 2026
    Review
  3. Article
  4. Review
  5. Article
  6. Review
  7. Article
  8. Review
  9. Review
  10. Article
  11. Pharmaceutics · 2023
    Article
  12. Article
  13. Article
  14. Frontiers in pharmacology · 2022
    Article
  15. 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

7 authors at 1 institution in 1 country.

Edin MuratspahićCenter for Physiology and Pharmacology, Institute of Pharmacology, Medical University of Vienna, 1090 Vienna, Austria.
Nataša TomaševićCenter for Physiology and Pharmacology, Institute of Pharmacology, Medical University of Vienna, 1090 Vienna, Austria.
Shahrooz Nasrollahi-ShiraziCenter for Physiology and Pharmacology, Institute of Pharmacology, Medical University of Vienna, 1090 Vienna, Austria.
Jasmin GattringerCenter for Physiology and Pharmacology, Institute of Pharmacology, Medical University of Vienna, 1090 Vienna, Austria.
Fabiola Susanna EmserCenter for Physiology and Pharmacology, Institute of Pharmacology, Medical University of Vienna, 1090 Vienna, Austria.
Michael FreissmuthCenter for Physiology and Pharmacology, Institute of Pharmacology, Medical University of Vienna, 1090 Vienna, Austria.ORCID 0000-0001-9398-1765
Christian W GruberCenter for Physiology and Pharmacology, Institute of Pharmacology, Medical University of Vienna, 1090 Vienna, Austria.ORCID 0000-0001-6060-7048
Medical University of Vienna · AT

Funding

Austrian Science Fund FWF P 32109
6 · The paper itself

Abstract

Cyclotides are plant-derived disulfide-rich peptides comprising a cyclic cystine knot, which confers remarkable stability against thermal, proteolytic, and chemical degradation. They represent an emerging class of G protein-coupled receptor (GPCR) ligands. In this study, utilizing a screening approach of plant extracts and pharmacological analysis we identified cyclotides from

Indexed as

CephaelisCyclotidesHEK293 CellsHumansLigandsPlant ExtractsReceptors, Opioid, kappaSignal TransductionCyclotideskalata B1LigandsPlant ExtractsReceptors, Opioid, kappa

Identifiers

PMID34308635
PMCPMC8406418
OpenAlexW3184487523

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.