Evidence map›Paper›PMID 23029306›Full record

ArticlePloS one2012

Implication of glutathione in the in vitro antiplasmodial mechanism of action of ellagic acid.

Patrice Njomnang Soh, Benoit Witkowski, Amandine Gales, Eric Huyghe, Antoine Berry, Bernard Pipy, Françoise Benoit-Vical

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2012. 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
2.8field-weighted citation impact, top 10% 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, 32 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. Ellagic acid and allopurinol decrease HExperimental brain research · 2022
    Article
  5. Suppressive, Curative, and Prophylactic Effects ofBioMed research international · 2022
    Article
  6. Heliyon · 2021
    Article
  7. Article
  8. In Vitro Antimalarial and Toxicological Activities ofThe Malaysian journal of medical sciences : MJMS · 2020
    Article
  9. Article
  10. Article
  11. Article
  12. Review
  13. Article
  14. Review
  15. 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 5 institutions in 1 country.

Patrice Njomnang SohCNRS, Laboratoire de Chimie de Coordination (LCC), Toulouse, France. sohnjomnang@yahoo.fr
Benoit Witkowski
Amandine Gales
Eric Huyghe
Antoine Berry
Bernard Pipy
Françoise Benoit-Vical
Centre Hospitalier Universitaire de Toulouse · FRUniversité Fédérale de Toulouse Midi-Pyrénées · FRCentre National de la Recherche Scientifique · FRLaboratoire de Chimie de Coordination · FRUniversité Toulouse III - Paul Sabatier · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The search for new antimalarial chemotherapy has become increasingly urgent due to parasite resistance to current drugs. Ellagic acid (EA) is a polyphenol, recently found in various plant products, that has effective antimalarial activity in vitro and in vivo without toxicity. To further understand the antimalarial mechanism of action of EA in vitro, we evaluated the effects of EA, ascorbic acid and N-acetyl-L-cysteine (NAC), alone and/or in combination on the production of reactive oxygen species (ROS) during the trophozoite and schizonte stages of the erythrocytic cycle of P. falciparum. The parasitized erythrocytes were pre-labelled with DCFDA (dichlorofluorescein diacetate). We showed that NAC had no effect on ROS production, contrary to ascorbic acid and EA, which considerably reduced ROS production. Surprisingly, EA reduced the production of the ROS with concentrations (6.6×10(-9) - 6.6×10(-6) M) ten-fold lower than ascorbic acid (113×10(-6) M). Additionally, the in vitro drug sensitivity of EA with antioxidants showed that antiplasmodial activity is independent of the ROS production inside parasites, which was confirmed by the additive activity of EA and desferrioxamine. Finally, EA could act by reducing the glutathione content inside the Plasmodium parasite. This was consolidated by the decrease in the antiplasmodial efficacy of EA in the murine model Plasmodium yoelii- high GSH strain, known for its high glutathione content. Given its low toxicity and now known mechanism of action, EA appears as a promising antiplasmodial compound.

Indexed as

AcetylcysteineAnimalsAntimalarialsAntioxidantsAscorbic AcidButhionine SulfoximineCells, CulturedDeferoxamineDrug SynergismEllagic AcidEnzyme InhibitorsErythrocytesGlutathioneHumansInhibitory Concentration 50MiceAcetylcysteineAntimalarialsAntioxidantsAscorbic AcidButhionine SulfoximineDeferoxamineEllagic AcidEnzyme InhibitorsGlutathioneReactive Oxygen SpeciesSiderophores

Identifiers

PMID23029306
PMCPMC3461036
OpenAlexW2042074835

What OpenQuestion holds

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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.