title: LC/MS/MS analyses of an oleander extract for cancer treatment.
abstract: An HPLC/MS/MS method has been developed for the characterization and quantification of the cardiac glycosides oleandrin, odoroside, neritaloside and the aglycone oleandrigenin, all contained in a patented-hot-water extract of Nerium oleander L (Anvirzel). Qualitative analysis of such extracts was achieved using a hybrid tandem quadrupole time-of-flight (QqTOF) mass spectrometer. Collision-induced dissociation (CID) mass spectra of oleandrin, oleandrigenin, odoroside, and neritaloside were obtained with greater than 5 ppm mass accuracy and resolution routinely in excess of 8000 (fwhm). The detection limit for oleandrin of 20 pg (injected) was realized when the precursor-to-product ion transition, m/z 577 --> 373, was monitored. We have also applied the analytical method to the determination of oleandrin, oleandrigenin, neritaloside, and odoroside in human plasma following an intramuscular injection of Anvirzel.
authors.affiliation: PE-Sciex Instruments, Concord, Ontario, Canada.
authors.forename: X
authors.initials: X
authors.lastname: Wang
authors.forename: J B
authors.initials: JB
authors.lastname: Plomley
authors.forename: R A
authors.initials: RA
authors.lastname: Newman
authors.forename: A
authors.initials: A
authors.lastname: Cisneros
mesh_terms: D000970:Antineoplastic Agents / Q000737:chemistry / Q000302:isolation & purification / Q000494:pharmacology*; D002298:Cardenolides / Q000737:chemistry / Q000302:isolation & purification / Q000494:pharmacology*; D002301:Cardiac Glycosides / Q000737:chemistry / Q000302:isolation & purification / Q000494:pharmacology*; D002851:Chromatography, High Pressure Liquid / Q000379:methods; D006801:Humans; D013058:Mass Spectrometry / Q000379:methods; D015394:Molecular Structure; D010936:Plant Extracts / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry
chemical_list: D000970:Antineoplastic Agents; D002298:Cardenolides; D002301:Cardiac Glycosides; D010936:Plant Extracts; C415147:neritaloside; C415148:odoroside; C008701:oleandrigenin; C021065:oleandrin