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• W4378907380 abstract "In Cameroon, malaria is still the cause of several deaths yearly and leading to the continued search for new potent leads to fight against Plasmodium falciparum. Medicinal plants like Hypericum lanceolatum Lam. are introduced in local preparations for the treatment of affected people. The bioassay-guided fractionation of the crude extract of the twigs and stem bark of H. lanceolatum Lam. led to the identification of the dichloromethane-soluble fraction as the most active (with 32.6% of the parasite P. falciparum 3D7 survival) which was further purified by successive column chromatography to obtain four compounds identified by their spectrometric data as two xanthones 1,6-dihydroxyxanthone (1) and norathyriol (2) and two triterpenes betulinic acid (3) and ursolic acid (4). In the antiplasmodial assay against P. falciparum 3D7, the triterpenoids 3 and 4 displayed the most significant potencies with IC50 values of <math xmlns=http://www.w3.org/1998/Math/MathML id=M1> <mn>2.8</mn> <mo>±</mo> <mn>0.8</mn> </math> μg/mL and <math xmlns=http://www.w3.org/1998/Math/MathML id=M2> <mn>11.8</mn> <mo>±</mo> <mn>3.2</mn> </math> μg/mL, respectively. Furthermore, both compounds were also the most cytotoxic against P388 cell lines with IC50 values of <math xmlns=http://www.w3.org/1998/Math/MathML id=M3> <mn>6.8</mn> <mo>±</mo> <mn>2.2</mn> </math> μg/mL and <math xmlns=http://www.w3.org/1998/Math/MathML id=M4> <mn>2.5</mn> <mo>±</mo> <mn>0.6</mn> </math> μg/mL, respectively. Further insights on the inhibition method of the bioactive compounds and their drug-likeness were obtained from their molecular docking and ADMET studies. The results obtained help in identifying additional antiplasmodial agents from H. lanceolatum and support its use in folk medicine for the treatment of malaria. The plant might be considered as a promising source of new antiplasmodial candidates in new drug discovery." @default.
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• W4378907380 date "2023-05-29" @default.
• W4378907380 modified "2023-10-16" @default.
• W4378907380 title "Bioassay-Guided Isolation of Antiplasmodial Compounds from Hypericum lanceolatum Lam. (Hypericaceae) and Their Cytotoxicity and Molecular Docking" @default.
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• W4378907380 doi "https://doi.org/10.1155/2023/4693765" @default.
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