title: Profiling the metabolic differences of anthraquinone derivatives using liquid chromatography/tandem mass spectrometry with data-dependent acquisition.
abstract: This work concentrates on the in vitro metabolism of anthraquinone derivatives from rhubarb. Different metabolic reactions for anthraquinone derivatives were dependent on the substituent group in the skeleton. Monohydroxylation in the exocyclic methyl group was the major metabolic modification for emodin. Aloe-emodin containing a hydroxymethyl group was mainly metabolized through a methylation reaction. For rhein, both hydrogenation and methyl substitution on the benzene ring were the major metabolic reactions. Hydroxyl substitution on the benzene ring was the predominant metabolic reaction for chrysophanol. For physcion, demethylation of the exocyclic methoxy group was the most important metabolic reaction.
authors.affiliation: Key Laboratory of Drug Quality Control and Pharmacovigilance (China Pharmaceutical University), Ministry of Education, Nanjing 210009, PR China.
authors.forename: Rui
authors.initials: R
authors.lastname: Song
authors.forename: Hui
authors.initials: H
authors.lastname: Lin
authors.forename: Zunjian
authors.initials: Z
authors.lastname: Zhang
authors.forename: Zhe
authors.initials: Z
authors.lastname: Li
authors.forename: Lei
authors.initials: L
authors.lastname: Xu
authors.forename: Haijuan
authors.initials: H
authors.lastname: Dong
authors.forename: Yuan
authors.initials: Y
authors.lastname: Tian
mesh_terms: D000818:Animals; D000880:Anthraquinones / Q000032:analysis* / Q000378:metabolism*; D002478:Cells, Cultured; D002851:Chromatography, High Pressure Liquid / Q000379:methods*; D020869:Gene Expression Profiling / Q000379:methods*; D008297:Male; D008862:Microsomes, Liver / Q000378:metabolism*; D051381:Rats; D017207:Rats, Sprague-Dawley; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D021241:Spectrometry, Mass, Electrospray Ionization / Q000379:methods*
chemical_list: D000880:Anthraquinones