Chun-shan Zhou

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OBJECTIVE To investigate the effect of podophyllotoxin on human gastric cancer cell line SGC 7901 cells in vitro and in vivo, and to provide evidence for treatment of gastric cancer with podophyllotoxin. METHODS SGC 7901 cells were treated with podophyllotoxin at various concentrations for different time. MTT assay, colony formation assay, and flow(More)
The performance of adsorption of tea polyphenol and caffine with polyamide resin was investigated. The results obtained by spectrophotometry and HPLC show that the ability of adsorption of tea polyphenol with polyamide is stronger than that of caffine, in which hydrogen bond plays a very important role. The adsorption amount of caffine is 2.65 mg.g-1 with(More)
Cocrystallization of 2,2'-dithiodibenzoic acid with isonicotinohydrazide from methanol solution yields the 1:2 cocrystal 2,2'-dithiodibenzoic acid-isonicotinohydrazide (1/2), C(14)H(10)O(4)S(2) x 2 C(6)H(7)N(3)O. The component molecules are linked by intermolecular O-H...N, N-H...O, N-H...N and C-H...O hydrogen bonds into layers running parallel to the(More)
In the title compound, C(16)H(17)N(5) (2+)·2ClO(4) (-)·CH(3)OH, the dihedral angle between the two benzimidazolium ring systems is 34.6 (1)°. The anions and solvent mol-ecules are linked to the cation by N-H⋯O hydrogen bonds. In the crystal structure, the combination of N-H⋯O and O-H⋯O hydrogen bonds results in two-dimensional layers running parallel to the(More)
OBJECTIVE To study the optimum technology of extracting bioactive component named geniposidic acid in Eucommia Ulmiodes by orthogonal test. METHOD An orthogonal test table L16(4(5)) was used with the factors of extracting time, temperature, times, ethanol consistency and the ratio of solid to liquid. The content of geniposideic acid was determined by(More)
The absorption spectroscopic determination of aucubin by condensation with p-dimethylaminobenzaldehyde was optimized in this paper. A high sensitive method was established and the linearity range of the method was from 4.5 to 45 microg x mL(-1). The influences of the factors, such as the dosage of coloring agent, reaction time, heating temperature and the(More)
OBJECTIVE To supply basis for the establishment of quality standard of Cryptolepis buchanaii. METHOD Characters of crude drugs, microscopic characteristic as well as UV spectrum of the herb were studied. RESULT Laticifers were found in the cortex and pith of the stem; much papillary non-glandular hair was found covering the stomata in the sub-cuticle of(More)
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