Evidence map›Paper›PMID 22476602›Full record

ArticleParasitology research2012

In vitro activity of extracts and isolated polyphenols from West African medicinal plants against Plasmodium falciparum.

Dieudonné Ndjonka, Bärbel Bergmann, Christian Agyare, Flávia M Zimbres, Kai Lüersen, Andreas Hensel, Carsten Wrenger, Eva Liebau

Open access · greenAbstract read
PubMed Publisher
In one paragraph

Article in Parasitology research, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
3.9field-weighted citation impact, top 8% 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

18 citing papers in PubMed, 46 citations in OpenAlex.

  1. Review
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  14. The Genus Phyllanthus: An Ethnopharmacological, Phytochemical, and Pharmacological Review.Evidence-based complementary and alternative medicine : eCAM · 2016
    Review
  15. Extracts fromMedicines (Basel, Switzerland) · 2015
    Article
  16. Article
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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 4 institutions in 3 countries.

Dieudonné NdjonkaFaculty of Science, University of Ngaoundere, B.P 454 Ngaoundere, Cameroon. dede_ndjonka@yahoo.com
Bärbel Bergmann
Christian Agyare
Flávia M Zimbres
Kai Lüersen
Andreas Hensel
Carsten Wrenger
Eva Liebau
Universidade de São Paulo · BRUniversity of Münster · DEBernhard Nocht Institute for Tropical Medicine · DEUniversity of Ngaoundéré · CM

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The aim of the study was to screen 11 selected traditional medicinal plants from West Africa for their in vitro antiplasmodial activity in order to determine the activity of single and of combination of plant extracts and to examine the activity of isolated pure compounds. Ethanolic and aqueous extracts of the 11 selected plants and pure compounds from Phyllanthus muellerianus and Anogeissus leiocarpus were tested in vitro against Plasmodium falciparum 3D7. Proliferation inhibitory effects were monitored after 48 h. Among the plants and pure compounds investigated in this study, geraniin from P. muellerianus, ellagic, gentisic, and gallic acids from A. leiocarpus, and extracts from A. leiocarpus, P. muellerianus and combination of A. leiocarpus with P. muellerianus affected the proliferation of P. falciparum most potently. Significant inhibitory activity was observed in combination of A. leiocarpus with P. muellerianus (IC(50) = 10.8 μg/ml), in combination of A. leiocarpus with Khaya senegalensis (IC(50) = 12.5 μg/ml), ellagic acid (IC(50) = 2.88 μM), and geraniin (IC(50) = 11.74 μM). In general growth inhibition was concentration-dependent revealing IC(50) values ranging between 10.8 and -40.1 μg/ml and 2.88 and 11.74 μM for plant extracts and pure substances respectively. Comparison with literature sources of in vivo and in vitro toxicity data revealed that thresholds are up to two times higher than the determined IC(50) values. Thus, the present study suggests that geraniin from P. muellerianus; ellagic acid, gallic acid, and gentisic acid from A. leiocarpus; and combination of extracts from A. leiocarpus with either P. muellerianus or K. senegalensis could be a potential option for malaria treatment.

Indexed as

Africa, WesternAnimalsAntimalarialsDose-Response Relationship, DrugErythrocytesHumansMolecular StructurePlant ExtractsPlants, MedicinalPlasmodium falciparumPolyphenolsAntimalarialsPlant ExtractsPolyphenols

Identifiers

PMID22476602
OpenAlexW2002711756

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.