title: Characterization of the constituents in rat plasma after oral administration of radix polygoni multiflori extracts by ultra-performance liquid chromatography/quadrupole time-of-flight mass spectrometry.
abstract: An ultra-performance liquid chromatography/quadrupole time-of-flight mass spectrometry method was established to detect as many constituents in rat plasma as possible after oral administration of Radix polygoni multiflori (RPM) extract. A C18 column (150 × 2.0 mm, 4 µm) was adopted to separate the samples, and mass spectra were acquired in negative modes. The fingerprints of RPM extract were established, resulting in 39 components being detected. Among these compounds, 29 were identified by comparing the retention times and mass spectral data with those of reference standards and relevant references, and eight compounds were separated and detected in RPM for the first time. In vivo, 23 compounds were observed in dosed rat plasma, 16 of 23 compounds were indicated as prototype components of RPM, and seven compounds were predicted to be metabolites of RPM. A high-speed and sensitive method was developed and was successfully utilized for screening and characterizing the ingredients and metabolites of RPM.
authors: School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, China.
authors: Longfei
authors: L
authors: Lin
authors: School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, China.
authors: Hongmei
authors: H
authors: Lin
authors: School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, China.
authors: Xingbin
authors: X
authors: Yin
authors: School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, China.
authors: Yang
authors: Y
authors: Zhao
authors: School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, China.
authors: Zhenwen
authors: Z
authors: Xia
authors: School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, China.
authors: Miao
authors: M
authors: Zhang
authors: School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, China.
authors: Xuechun
authors: X
authors: Li
authors: International School, Beijing University of Chinese Medicine, Beijing, China.
authors: Jing
authors: J
authors: Han
authors: Modern Research Center for TCM, Beijing University of Chinese Medicine, Beijing, China.
authors: Changhai
authors: C
authors: Qu
authors: School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, China.
authors: Jian
authors: J
authors: Ni
mesh_terms: D000284:Administration, Oral; D000818:Animals; D002851:Chromatography, High Pressure Liquid / Q000295:instrumentation / Q000379:methods*; D004365:Drugs, Chinese Herbal / Q000008:administration & dosage / Q000493:pharmacokinetics; D008297:Male; D013058:Mass Spectrometry / Q000379:methods*; D010936:Plant Extracts / Q000008:administration & dosage / Q000032:analysis* / Q000097:blood* / Q000737:chemistry; D018517:Plant Roots / Q000737:chemistry; D028502:Polygonum / Q000737:chemistry*; D017207:Rats, Sprague-Dawley
chemical_list: D004365:Drugs, Chinese Herbal; D010936:Plant Extracts
keywords: Radix polygoni multiflori; U-HPLC-Q-TOF/MS; ingredients; metabolites; plasma