Evidence map›Paper›PMID 24467387›Full record

ArticleJournal of natural products2014

NF-κB inhibitors from Eurycoma longifolia.

Thi Van Anh Tran, Clemens Malainer, Stefan Schwaiger, Atanas G Atanasov, Elke H Heiss, Verena M Dirsch, Hermann Stuppner

Open access · hybridAbstract read
In one paragraph

Article in Journal of natural products, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers.

0numbers the graph read from it
0cells of the map it votes in
30citing papers in PubMed
3.4field-weighted citation impact, top 7% 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

30 citing papers in PubMed, 80 citations in OpenAlex.

  1. Article
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  4. Biologically Active Compounds of Malaysian Medicinal and Aromatic Plants.Progress in the chemistry of organic natural products · 2025
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  5. Article
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  8. Journal of public health in Africa · 2023
    Article
  9. Review
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  11. Article
  12. Biological Activity of Naturally Derived Naphthyridines.Molecules (Basel, Switzerland) · 2021
    Review
  13. A review on extraction techniques and therapeutic value of polar bioactives from Asian medicinal herbs: Case study onSaudi pharmaceutical journal : SPJ : the official publication of the Saudi Pharmaceutical Society · 2021
    Review
  14. Article
  15. Article
  16. Article
  17. The Powdered Root ofNutrients · 2020
    Article
  18. Article
  19. Article
  20. Herbal medicine for sports: a review.Journal of the International Society of Sports Nutrition · 2018
    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 2 institutions in 2 countries.

Thi Van Anh TranInstitute of Pharmacy/Pharmacognosy, Center for Molecular Biosciences Innsbruck, University of Innsbruck , Austria.
Clemens Malainer
Stefan Schwaiger
Atanas G Atanasov
Elke H Heiss
Verena M Dirsch
Hermann Stuppner
University of Vienna · ATUniversität Innsbruck · AT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The roots of Eurycoma longifolia have been used in many countries of Southeast Asia to alleviate various diseases including malaria, dysentery, sexual insufficiency, and rheumatism. Although numerous studies have reported the pharmacological properties of E. longifolia, the mode of action of the anti-inflammatory activity has not been elucidated. Bioguided isolation of NF-κB inhibitors using an NF-κB-driven luciferase reporter gene assay led to the identification of a new quassinoid, eurycomalide C (1), together with 27 known compounds including 11 quassinoids (2-12), six alkaloids (13-18), two coumarins (19, 20), a squalene derivative (21), a triterpenoid (22), and six phenolic compounds (23-28) from the extract of E. longifolia. Evaluation of the biological activity revealed that C19-type and C20-type quassinoids, β-carboline, and canthin-6-one alkaloids are potent NF-κB inhibitors, with IC50 values in the low micromolar range, while C18-type quassinoids, phenolic compounds, coumarins, the squalene derivative, and the triterpenoid turned out to be inactive when tested at a concentration of 30 μM. Eurycomalactone (2), 14,15β-dihydroklaieanone (7), and 13,21-dehydroeurycomanone (10) were identified as potent NF-κB inhibitors with IC50 values of less than 1 μM.

Indexed as

AlkaloidsCarbolinesCoumarinsDrug Screening Assays, AntitumorEurycomaFuransHeLa CellsHumansIndole AlkaloidsInhibitory Concentration 50Molecular StructureNF-kappa BPlant RootsPlants, MedicinalQuassinsSqualeneAlkaloidscanthin-6-oneCarbolinesCoumarinseurycomalide CeuryleneFuransIndole AlkaloidsNF-kappa BQuassinsSqualene

Identifiers

PMID24467387
PMCPMC3971761
OpenAlexW2028290126

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.