Monographs of Chinese medicine into the United States Pharmacopeia and the European Pharmacopoeia is the prerequisite and foundation for the aim of Chinese medicine standards leading the international standard-set-ting. By comparative analysis of the key issues of quality standards among Chinese, American and European Phar-macopoeia, thoughts and suggestions are proposed on how to implement the construction of international quality stan-dard of traditional Chinese medicine. Meanwhile, under the pressure of the present international environment, the pa-per can also provide some reference and advices which can help to break down the difficult situation for the process of internationalization of traditional Chinese medicine.

Objective To study the chemical constituents of Smilax china.Methods The compounds were isolated by silica gel,Sephadex LH-20,ODS chromatography,and semi-preparative HPLC.Their structures were elucidated on the basis of MS and NMR spectroscopic analyses.Results Seven flavonoids and four stilbenes were isolated and identified as dihydrokaempferol-5-O-?-D-glucoside(Ⅰ),engeletin (Ⅱ),isoengeletin(Ⅲ),dihydroquercetin-3-O-glycoside(Ⅳ),3,5,7,3',5'-pentahydroxy-flavanonol (Ⅴ),astilbin(Ⅵ),quercetin-3'-Oglycoside(Ⅶ),piceid(Ⅷ),scirpusin A(Ⅸ),resveratrol(Ⅹ),and oxyresveratrol(Ⅺ).Conclusion CompoundsⅣ—Ⅸare isolated from this plant for the first time,among which the ~(13)C-NMR data of compoundⅨis reported firstly.

Objective To investigate the derivatives of ginsenoside sapogenins and their activities against HL-60 cells.Methods The total ginsenoside extract was treated by Smith degradation.All products were isolated by silica gel chromatography and purified by preparative HPLC.On the basis of 1D and 2D NMR data,structures were elucidated.The activity against HL-60 cells was measured by MTT method.Results Three compounds were isolated and identified as 20(S)-protopanaxadiol(PD),20(S)-protopanaxatriol(PT),and 24,25-en-3?,6?-dihydroxy-12,20-(1′-hydroxy) ethanedioxy-dammarane(1).Conclusion Compound 1,named 1′-hydroxy ethanedioxy PT,is a novel derivate of sapogenin with higher inhibitory activity against HL-60 cells than PD and PT.

Object To investigate the biotransformation of cantharidin by cell suspension cultures of Platycodon grandiflorus (Jacq ) A DC Methods Cantharidin was added into cell suspension cultures of P grandiflorus and incubated for another six days The culture supernatant was extracted with EtOAc and then subjected to silica gel chromatography Results Two products were isolated as a mixture in a molar ratio of about 2∶1 Their structures were identified on the basis of spectroscopic data as 1? OH cantharidin (Ⅱa) and 1? OH cantharidin (Ⅱb) The relative configuration was elucidated according to NOESY spectrum Conclusion The two products were new cantharidin derivatives

Object To study the effect of rare-earth elements La3+ on growth of hairy roots and normal roots of Rheum palmatum L and their yield of anthraquinones. Methods The biomass and an- thraquinone yield of two hairy clones DH5c, DH7a, and normal root NOR cultures of R. palmatum were evaluated statistically after various concentration of La3+ were administrated into culture medium. Results Significant differences of biomass yield and anthraquinone yield were shown among six La3+ concentrations, in which 10 mg/L showed obvious inhibitory effect for root growth and 1. 0 mg/L was the best for anthraquinone yield. In general, aloe-emodin and rhein were predominant in five anthraquinones after treated with the rare-earth element. Conclusion The growth of hairy root cultures of R. palmatum and their anthraquinone yield are greatly promoted by addition of La3+ to the medium.

The latest results from our research group in the biotransformation of triptolides and bufadienolides were reviewed. The trends in the development of biotransformation in the future were also briefly discussed.

Object To investigate the chemical constituents of Buddlejae officinalis Maxim. , the relationship between their bioactivities, and the medicinal application of the herb. Methods Various chro-matographic techniques were employed for the isolation and purification of the constituents, including silica gel, Sephadex LH-20, and pre-HPLC. The structures of 11 isolated chemical compounds were elucidated by chemical and spectral analysis (NMR, IR, UV, and MS). The aldose reductase inhibiting test and test on DNA topoisomerase Ⅳ inhibitory effect were applied to evaluate the bioactivity of both the purified compounds and the crude fraction. Results Eleven compounds were isolated from the extracts of B. offic-inalis. They are four flavones and their glycosides; apigenin (Ⅰ), linarin (Ⅱ), apigenin-7-O-?-L-rhamnopyranosyl (1-6)-?-D-glucopyranoside (Ⅲ), and luteolin-7-O-?-D-glucoside (Ⅶ); four phenylen-thanoid glycosides: verbascoside (Ⅴ), isoacteoside (Ⅵ), cistanoside F, a and b (Ⅶ-1 and 2), campneo-side Ⅱ , a and b (Ⅷ-1 and 2); three triferpenoid saponins: mimengoside A (Ⅸ), mimengoside B (Ⅹ), songaroside A (Ⅺ). Some of the them (such as Ⅱ ,Ⅲ , and Ⅵ) showed the aldose reductase inhibitory activities with a higher inhibitory rate than that of quercetin (the positive control), others (such as Ⅰ,Ⅱ , Ⅴ, Ⅵ, and Ⅺ) displayed the inhibititory activities against the DNA topoisomerase Ⅳ . Conclusion Among all the isolated compounds, Ⅲ , Ⅶ-1 and 2, Ⅷ-1 and 2, and Ⅺ are separated for the first time both from the plant and the genus. Their bioactivities of bacteriostatic and against aldose reductase with DNA topoisomerase Ⅳ as target are tested for the first time and are related to the medicinal application of B. officinalis.

This paper is aimed to report the development of a method for the determination of the binding rate of plasma protein with salvianolic acid B. In vitro, equilibrium dialysis method was used to imitate the binding process between salvianolic acid B and plasma protein, in vivo, ultrafiltration method was used and the binding rate with HPLC was determined. Plasma samples were treated with methanol to precipitate the protein, and the buffer solution was directly determined after filtering. The calibration curve of the buffer solution was linear in the range of 0.5-20 microg mL(-1). The calibration curve of the plasma was linear in the range of 2-200 microg mL(-1). The extract recovery was 68.6%-81.9%. RSDs of intra- and inter-day precisions were all less than 8.5%. The binding rates of plasma protein with salvianolic acid B in vitro was 75.2% and in vivo was 92.1%. This paper shows the high binding power of salvianolic acid B to plasma protein with high sensitivity, good reproduction, simple management and fulfilling the requirement.

Objective To study the effects of phytohormones and elicitors on the growth and anthraquinone production of Cassia obtusifolia hairy roots. Methods Blades and petioles of C. obtusifolia〖WTBZ〗 were infected with Agrobacterium rhizogenes LBA9402 and the in vitro culture system of the hairy root was established. Results Hairy roots were induced by A. rhizogenes LBA9402. The results showed that the addition of 0.5% NAA to the hairy roots increased the content of five kinds of anthraquinones by four times, and Aspergillus niger elicitor had no much effect and JA had slightly inhibitory effect on root growth, but both of them significantly promoted the anthraquinone accumulation, the anthraquinone yield increased more than two times with the treatment of 2.0 mL elicitor/50 mL medium and by 73% with the treatment of 10 ?mol/L jasmin acid (JA), respectively. JA had little inhibitory effect on the growth of fairy roots. Conclusion The fundation has been established for further oplimizing the proper cultural system for C. obtusifolia hairy roots and regulating the secondary melabolite.