ArticleActa parasitologica2026
In Vitro Antiparasitic Activity and Phytochemical Profiling of Rhaponticum repens and Achillea millefolium Methanolic Extracts Against Plasmodium Falciparum and Leishmania major.
Article in Acta parasitologica, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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- UHPLC-ESI-Orbitrap-MS/MS Untargeted Metabolomic Profiling and In Vitro Antioxidant and Antibacterial Activity of DifferentFoods (Basel, Switzerland) · 2026Article
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7 authors.
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Abstract
purposeMalaria and leishmaniasis remain major global health challenges, exacerbated by increasing resistance to current antiparasitic drugs. Medicinal plants such as Rhaponticum repens and Achillea millefolium represent potential sources of new antiparasitic compounds, although their activity against Plasmodium falciparum and Leishmania major remains insufficiently validated. To evaluate the in vitro antiparasitic activity, cytotoxicity, and phytochemical composition of methanolic extracts of R. repens and A. millefolium against P. falciparum and L. major clinical isolates.
methodsMethanolic extracts were tested in vitro against P. falciparum and L. major. Antiparasitic activity was assessed using JC-1 fluorescent dye staining followed by fluorescence quantification and flow cytometry, with chloroquine and amphotericin B as positive controls. Cytotoxicity was evaluated on Vero cells using the MTT assay. Phytochemical profiling was performed by GC-MS. IC₅₀ values and selectivity indices were calculated from triplicate experiments.
resultsBoth extracts exhibited significant dose- and time-dependent inhibition of parasite viability. R. repens showed higher activity against L. major (81% inhibition at 2.0 mg/mL, IC₅₀ = 1.18 mg/mL; SI = 10.6), whereas A. millefolium was more effective against P. falciparum (94% inhibition at 2.0 mg/mL, IC₅₀ = 0.52 mg/mL; SI = 26.3). Cytotoxicity toward mammalian cells was low. GC-MS analysis identified nonadecane and docosane as major constituents.
conclusionMethanolic extracts of R. repens and A. millefolium demonstrate promising in vitro antiparasitic activity with acceptable safety profiles. These findings support their potential as leads for natural product-based antiparasitic drug discovery and provide a basis for future bio-guided fractionation studies.
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