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Antiplasmodial, anti-inflammatory and cytotoxic activities of various plant extracts from the Mascarene Archipelago

Abstract : Aim of the study Antiplasmodial activity, inhibition of nitric oxide (NO) overproduction, and anti-proliferative activity were investigated in vitro to evaluate the bioactive potential of the traditional pharmacopoeia of the Mascarene Archipelago, which is known for its biodiversity and for the richness of its endemic flora. Materials and methods A total of 45 methanol (MeOH) and dichloromethane (DCM) extracts were prepared from 19 plant species collected on Réunion and Mauritius Islands. Ninety-six-well microplate assays were performed on chloroquine sensitive Plasmodium falciparum 3D7 strain, on LPS-stimulated Raw 264.7 murine macrophages and on A-549, DLD-1 and WS1 human cells. Activity was evaluated through spectrophotometric methods. Results Activity was attributed to plant extracts expressing IC50 \textless 50 μg/ml for antiplasmodial response, IC50 \textless 100 μg/ml for cytotoxicity, and IC50 \textless 130 μg/ml for anti-inflammatory reaction. The majority of the extracts tested (69%) exhibited potency in at least one of these three types of activity. This is the first report describing promising antiplasmodial activity (IC50 \textless 15 μg/ml) for Psiadia dentata DCM extract and Terminalia bentzoe MeOH bark extract. NO inhibition assay revealed seven interesting plants, described for the first time as anti-inflammatory: Aphloia theiformis, Buddleja salviifolia, Eupatorium riparium, Hiptage benghalensis, Psiadia arguta, Psiadia dentata, and Scutia commersonii. Finally, anti-proliferative activity was observed for two endemic species, Geniostoma borbonicum and Nuxia verticillata. Conclusion Using the criterion of endemism as part of the criteria for traditional medicinal use raises the chances of finding original active principles. In our case, 86% of the endemic plants tested displayed pharmacological interest.
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Contributor : Claire Tessier Connect in order to contact the contributor
Submitted on : Tuesday, September 15, 2015 - 12:03:03 PM
Last modification on : Wednesday, November 9, 2022 - 1:42:09 PM



M. C Jonville, Hippolyte Kodja, Dominique Strasberg, A. Pichette, E. Ollivier, et al.. Antiplasmodial, anti-inflammatory and cytotoxic activities of various plant extracts from the Mascarene Archipelago. Journal of Ethnopharmacology, 2011, 136 (3), pp.525--531. ⟨10.1016/j.jep.2010.06.013⟩. ⟨hal-01199351⟩



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