title: Analysis of the chemical constituents and rats metabolites after oral administration of Nauclea officinalis by ultra-performance liquid chromatography quadrupole time-of-flight mass spectrometry.
abstract: Nauclea officinalis has long been used in China for the treatment of cold, fever, swelling of throat, pink eyes, and so on; however, the in vivo integrated metabolism of its multiple bioactive components remains unknown. In this paper, an ultra-performance liquid chromatography quadrupole time-of-flight mass spectrometry (UPLC-QTOF/MS) method was established to identify chemical constituents in N. officinalis and metabolites in rat biological fluids after oral administration of N. officinalis. First, 40 chemical constituents in N. officinalis were detected within 19min by UPLC-QTOF/MS. Among them, 18 alkaloids and 7 phenolic acids and iridoids were identified or tentatively characterized. Secondly, 22 metabolites were identified after oral administration of N. officinalis extract, including 3, 9, 6 and 4 metabolites in the plasma, feces, urine and bile samples, respectively. Finally, the metabolic pathway was proposed, which were the hydroxylation, the hydroxylation of deglycosyation product of parent compound, the hydroxylation and dehydrogenation product of parent compound, and acetylation. Among these, hydroxylation was considered as the main metabolic processes. This work suggests that the integrative metabolism approach makes a useful template for drug metabolism research of traditional Chinese medicine (TCM).
authors.affiliation: Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing 210028, China; Key Laboratory of New Drug Delivery System of Chinese Meteria Medica, Jiangsu Province Academy of Traditional Chinese Medicine, Nanjing 210028, China. Electronic address: sunshinezhu@yeah.net.
authors.forename: Fenxia
authors.initials: F
authors.lastname: Zhu
authors.affiliation: Department of Analytical Chemistry, China Pharmaceutical University, Nanjing 210009, China.
authors.forename: Jiaquan
authors.initials: J
authors.lastname: Chen
authors.affiliation: Department of Analytical Chemistry, China Pharmaceutical University, Nanjing 210009, China.
authors.forename: Hui
authors.initials: H
authors.lastname: Wang
authors.affiliation: Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing 210028, China; Key Laboratory of New Drug Delivery System of Chinese Meteria Medica, Jiangsu Province Academy of Traditional Chinese Medicine, Nanjing 210028, China.
authors.forename: Xiaobin
authors.initials: X
authors.lastname: Jia
authors.affiliation: Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing 210028, China; Key Laboratory of New Drug Delivery System of Chinese Meteria Medica, Jiangsu Province Academy of Traditional Chinese Medicine, Nanjing 210028, China.
authors.forename: Shuxia
authors.initials: S
authors.lastname: Wang
authors.affiliation: College of Pharmacy, Hainan Medical University, Haikou 570102, China.
authors.forename: Zhiyuan
authors.initials: Z
authors.lastname: Zhang
authors.affiliation: Department of Analytical Chemistry, China Pharmaceutical University, Nanjing 210009, China.
authors.forename: Xiaoting
authors.initials: X
authors.lastname: Zhai
authors.affiliation: Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing 210028, China; Key Laboratory of New Drug Delivery System of Chinese Meteria Medica, Jiangsu Province Academy of Traditional Chinese Medicine, Nanjing 210028, China.
authors.forename: Jindi
authors.initials: J
authors.lastname: Xu
authors.affiliation: Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing 210028, China; Key Laboratory of New Drug Delivery System of Chinese Meteria Medica, Jiangsu Province Academy of Traditional Chinese Medicine, Nanjing 210028, China.
authors.forename: Wei
authors.initials: W
authors.lastname: Tan
authors.affiliation: Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing 210028, China; Key Laboratory of New Drug Delivery System of Chinese Meteria Medica, Jiangsu Province Academy of Traditional Chinese Medicine, Nanjing 210028, China.
authors.forename: Qing
authors.initials: Q
authors.lastname: Ning
authors.affiliation: Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing 210028, China; Key Laboratory of New Drug Delivery System of Chinese Meteria Medica, Jiangsu Province Academy of Traditional Chinese Medicine, Nanjing 210028, China.
authors.forename: Junfei
authors.initials: J
authors.lastname: Gu
mesh_terms: D000284:Administration, Oral; D000818:Animals; D002853:Chromatography, Liquid / Q000379:methods*; D005243:Feces; D008297:Male; D013058:Mass Spectrometry / Q000379:methods*; D010936:Plant Extracts / Q000008:administration & dosage* / Q000378:metabolism; D051381:Rats; D017207:Rats, Sprague-Dawley; D019666:Rubiaceae / Q000737:chemistry* / Q000378:metabolism
chemical_list: D010936:Plant Extracts
keywords: Chemical compounds; Metabolite identification; UPLC-QTOF/MS