0000000000490540

AUTHOR

Blanche L. Ndontsa

showing 2 related works from this author

Caffeate and piperidine-3-ol derivatives from the stem bark of Cassia sieberiana

2019

A new caffeate derivative from the ethanol extract of the stem bark of Cassia sieberiana DC. is described herein along with the known secondary metabolites spectaline (2), iso-6-cassine (3), 3-O-methyl-chiro-inositol (4), monobehenin (5), octyl nonadecyloate (6), β-sitosterol (7), stigmasterol (8) and sitosterol 3-O-β-D-glucopyranoside (9). The chemical structures were elucidated by means of various spectroscopic and spectrometric techniques. Extract and isolated compounds were devoid of inhibitory action against the herein selected bacterial strains (MICs > 256 μg/mL) but showed capacities to reduce 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical (EC50 50 6.47 ± 0.48 μg/mL).

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A naturally occuring triterpene saponin ardisiacrispin B displayed cytotoxic effects in multi-factorial drug resistant cancer cells via ferroptotic a…

2018

WOS: 000432722700010

0301 basic medicineProgrammed cell deathCytotoxicitySaponinPharmaceutical ScienceApoptosisFlow cytometryCell Cycle Distribution03 medical and health sciencesArdisiacrispin BCell Line TumorDrug DiscoverymedicineFerroptosisHumansCytotoxic T cellOleanolic AcidCytotoxicityCaspaseMembrane Potential MitochondrialPharmacologybiologymedicine.diagnostic_testMitochondrial Membrane PotentialChemistryHep G2 CellsSaponinsHCT116 Cellsmedicine.diseaseAntineoplastic Agents PhytogenicDrug Resistance MultipleLeukemia030104 developmental biologyComplementary and alternative medicineDoxorubicinDrug Resistance NeoplasmApoptosisCaspasesCancer cellbiology.proteinCancer researchMolecular MedicineReactive Oxygen SpeciesPhytomedicine
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