Jin-feng Wei

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Four kinds of ionic liquids [BMIM] Br, [BMIM] BF4, [BMIM] PF6, [HMIM] PF6 were used to analyze the content of oleanic acid and paeoniflorin in Paeonia lactiflora with ultrasonic-assisted extraction coupled with HPLC. The chromatographic column, Purospher star RP-C18 (4.6 mm x 250 mm, 5 μm), was used. Acetonitrile and water (90:10) as mobile phase was used(More)
Cichorium endivia. L, consumed either cooked or eaten raw in salads, is a popular kind of vegetable cultivated all around the World. Its components have been widely used in folk medicine in anti-inflammatory therapy. However, the anti-cancer activity of the components has never been reported. In this study, (3S)-1,2,3,4-tetrahydro-β-carboline-3-carboxylic(More)
Four kinds of ionic liquids were adopted to analyze the content of rubimaillin and alizarin in Rubia cordifolia roots with ultrasonic-assisted extraction coupled with HPLC. The chromatographic column, Purospher star RP-C18 (4.6 mm x 250 mm, 5 microm), was used. Methanol and 0.4% acetic acid-water as mobile phase with flow rate at 0.85 mL min(-1), gradient(More)
OBJECTIVE To study the chemical constituents from Lysimachia circaeoides. METHODS The column chromatographic techniques were applied to isolate the constituents. EI-MS and NMR were used to identify the structures. RESULTS Eight compounds were isolated and identified from the extract of L. circaeoides and their structures were elucidated as kaempferol(More)
Photinia serrulata Lindl. belongs to the Rosaceae family and is distributed in Shanxi, Gansu, Anhui, Jiangsu, Henan, and Hunan Provinces in China [1]. Phytochemical research showed that triterpenoids and cyanophoric glycosides, for example, ursane triterpenoids and analogs, ursolic acid, oleanolic acid, prunasin, and saponin, were the main compounds in the(More)
In order to established a method for simultaneous determination of isoquercitrin, astragaline, quercetin and kaempferol in Lysimachia clethroides, the ionic liquid 1-hexyl-3-methylimidazolium hexafluorophosphate ([HMIM]PF6) methanol was used as the ultrasound-assisted extraction solvent combing with RP-HPLC. A Purospher star RP-C1 column was used with the(More)
Yucca gloriosa L., belongs to the Agavaceae family and is also known as pineapple flower. It is a perennial treelike evergreen plant with origin in eastern and southeastern North America. Generally, it is cultivated in China around the Yangtze River Basin [1]. Phytochemical research showed that steroidal saponins were the main compounds [2]. Pharmacological(More)
  • Han-Qing Liu, Ying-Ming Wang, +6 authors A. Wang
  • Cellular physiology and biochemistry…
  • 2017
BACKGROUND/AIMS The aim of this study was to determine the anti-psoriasis effects of α-(8-quinolinoxy) zinc phthalocyanine (ZnPc-F7)-mediated photodynamic therapy (PDT) and to reveal its mechanisms. METHODS HaCaT cells were used to observe the influence of ZnPc-F7-PDT on cell proliferation in vitro. The in vivo anti-psoriasis effects of ZnPc-F7-PDT were(More)
An amino acid, 3S-1,2,3,4-tetrahydro-β-carboline-3-carboxylic acid, was isolated for the first time from the leaves of Cichorium endivia. The complete assignment of its (1)H and (13)C NMR spectroscopic data was carried out also for the first time based on extensive 1D and 2D NMR experiments. Cytotoxicity of this isolated compound against HCT-8 and HepG2(More)
Incubation systems were established to investigate the effects of quercetin, kaempferol, isoquercitrin and astragalin in Lysimachia clethroides Duby on the activities of CYP2E1 and CYP3A4 in rat liver microsomes in vitro. Probe substrates of 4-nitrophenol and testosterone as well as flavonoids at different concentrations were added to the incubation(More)