Objective: To explore the anticancer mechanism of Stellera chamaejasme L. abstracts with water (SCLA). Methods: SCLA drugserum was derived after different time from mice which was orally peradministrated with different dose of SCLA. the effects of the serum on the roliferation of human gastric adnocacinoma SCG7901 cells were observed with MTT assay and clone formation methods.Results: After treatment with the drugserum derived at 1,2,3h from mice pertreated with SCLA(5,10 and 20g?kg -1 ), the MTT formazan and cone formation of gastric adnocacinoma SGC7901 cells were decreased significantly. SCLA from the mice which were given the drugserum 2h later was more effective than others. Conclusions: SCLA had a remarkable inhibitory effects on proliferation of gastric adnocacinoma SGC7901 cells, which may be the main anticancer mechanisms of SCLA.

OBJECTIVE:To study the protective effects of Ginkgolides(GL)on cerebral ischemia in experimental rodents. METHODS:The models of decapitative mice and acute incomplete cerebral ischemic(AICI)rats were used.The gasp duration of decapitative mice and cerebral index,water content of brain,cerebral capillary permeability and hemorrheological parameters in rats were determined.RESULTS:Ginkgolides could prolong gasp duration of decapitative mice,increase the cerebral index and the water content of brain,inhibit capillary permeability,improve hemorrheological parameters and decrease blood viscosi?ty.CONCLUSION:Ginkgolides may antagonize the damage of cerebral ischemia.

OBJECTIVE: To establish an HPLC method for the determination of 8-O-acetyl-shanzhiside methylester in Tibet medicinal Lamiophlomis rotata.METHODS: HPLC analysis was performed on Symmetry C18(150 mm?4.6 mm,5 ?m) column with the mixture of acetonitrile-water(15∶85) served as the mobile phase.The detection wavelength was set at 234 nm.RESULTS:The linear range of 8-O-acetyl-shanzhiside methylester was 1.97～19.68 ?g?mL-1(r=0.999 6) and its average recovery was 99.53%(RSD=1.73%,n=9).CONCLUSION: The method is simple,accurate and specific,and it applies reference for quality evaluation and utilization of Tibet medicinal L.rotata.

In order to study the enhancement of immune functions and autologous tumor-killing (ATX) activity by kappa-selenocarrageenan (KSC) in mice bearing sarcoma 180, the effects of KSC and/or Cyclophosphamide (Cy) on natural killer(NK) activity, lymphokine activated killer(LAK) activity, the production of interleukin-2 (IL-2), ATK activity and the growth of sarcoma 180 (S180) were observed. The results showed that KSC promoted NK activity, LAK activity and ATK activity in vivo, increased IL-2 production at 40mg/kg ?d x 9d. It also enhanced the antitumor action of Cy (20mg/kg?d x 9d) and offsetted the inhibition of Cy on immunocompetent cells. The ATK activity in splenocytes of SI80-bearing mice could be induced and augmented by recombinant interleukin-2 (rIL-2) in vitro. In conclution, KSC had a up-regulating effect on immune functions and ATK activity in tumor-bearing mice, therefore, can be used as a biological response modifier (BRM) in cancer biotherapy.

History and current situation of hospital preparation in our country and practical demands of pharmaceutical industry were analyzed. With the implementation of GMP in pharmaceutical industry and enhanced drug administration, lots of problems were exposed. The scale of hospital preparation was decreasing year by year, though it still stayed at a predominate position in hospital works currently.

The antiumor activity of a new podophyllotoxin spin-labeled derivative, 4 -C 4 "-( 2 ", 2", C", 6"-tetramethyl- 1 "-piperidinyoxy ) amino]-4'-demethylepipodophyllotoxin ( GP-7 ) was studied. It was found that the growth of transplanted mouse tumors S180, HePS and Lewis lung cancer was markedly inhibited by GP-7. At a dose of 7.5-20 mg/kg, the inhibition rates of it against Sl80, HePS and Lewis lung cancer were 36.0-58.4, 29.6-60.0, and 27.2-46.5 % respectively. The toxicity of GP-7 was low, as indicated by the LD50 value of 231.2 mg/kg which was 3.3 times higher than that of etoposide ( VP-16 ) . On the other hand, the effects of GP-7 on spleen index and thymus index of mice bearing S180 tumor were remarkably lower than that of VP-16. In vitro GP-7 exhibited marked inhibition effects against L1210 and SGC-7901 cells. After exposure of L1210 cells to GP-7 and VP-16 5 mg/L for 24 h, the. inhibition rates were 75.5 and 73.6 %. after exposure of SGC-7901 cells to GP-7 and VP-16 5 mg/L for 72 h, the inhibition rates were 81.4 and 84.2 %. The new podophyllotoxin derivative GP-7 was similar to its structure analogues, clinical drug VP-16, in antitumor activity, while the toxicity of it was much lower than that of VP-16.

Aim To investigate HPA axis change relation with glucose and lipid metabolism.Methods Wistar rats were injected intraperitoneally with STZ (30 mg·kg~(-1)) after fed with high lipid food for two months, then rats with blood glucose of over 15 mmol·L~(-1) were used in the experiment. Animals were divided into four groups: normal group, diabetic model group, treatment group (ROS 200 mg·kg~(-1) ·d~(-1) ig), and metformin group (200 mg·kg~(-1)·d~(-1) ig).Rats were decapitated after they had been administered ig for four weeks and were 24 hour urine collected.Plasma CRH, ACTH, corticosterone, hypothalamic CRH, ACTH of pituitary gland, 24 hour urinary corticosterone and plasma insulin were determined by ELISA and radio immunity kit respectively.Results In diabetic rat model induced by high lipid food and STZ, plasma and urinary glucose level and plasma TC, TG levels were increased, plasma HDL-C and hepatic glycogen content were reduced, which was synchronized with changes of higher pituitary ACTH, plasma and total 24 hour urine corticosterone excretion.Conclusion The disorder of glucose and lipid metabolism of model induced by high lipid food and low dose STZ may be linked to the change of HPA axis.The improvement of ROS on glucose and lipid metabolism in diabetic rats may be linked to the decrease of HPA axis activity.

BACKGROUND:Recent studies indicate that osteolysis surrounding prosthesis is the main reason causing artificial joint loosening.The reason and development process of osteolysis surrounding prosthesis are not fully understood.OBJECTIVE:To observe the pathological changes of limiting membrane surrounding sterile loosened prosthesis of artificial hip ioint and compare that with cicatricial tissue surrounding internal fixation.DESIGN,TIME AND SETTING:Histological observation was done at The Second Hospital of Soochow University between September 2000 and December 2005.PARTICIPANTS:Limiting membrane surrounding prosthesis of eight artificial hip joints overhauled for loosening were removed during operation for pathological examination.METHODS:Specimens were fixed with 10%formaldehyde solution and embedded with paraffin,and were cut into sections,the sections were stained by hematoxylin-eosin(HE)staining and immunohistochemistry staining.The specimens were done bacterial culture.MAIN OUTCOME MEASURES:Histopathological changes.RESULTS:Wear particles,cellular proliferation and osteolytic factors were found in the limiting membrane surrounding loosening prosthesis.The bacterial culture results of the specimens were negative.CONCLUSION:Wear particles generated in the using process of prosthesis can activate osteolytic factors produced by inflammatory cells and is an important reason leading to sterile loosening of prosthesis.

A high performance liquid chromatographic (HPLC) method using triethylamine (TEA), copper *" acetate and L-proline as the chiral mobile phase (CMP) and the enantiomric analysis of thyroxine (T4) are described. The influence of the mobile phase parameters including the TEA concentration, manipulation pH, concentration of Cu*", concentration of L-proline, temperature of column and flow rate of eluent on the enantiomers separation of thyroxine was studied. The HPLC-CMP is a simple method for separation and determination of D，L-T4 in drug or in human plasma. It can be used to therapeutic drug or adverse drug reactions monitor.

Object To explore, on the whole, the anticancer activity and mechanism of the aqueous extract of Ruixiang Langdu (Stellera chamaejasme L.) (SCLA). Methods Mice were given different i.g. doses of SCLA and their serum collected at different intervals after drug administration. The effects of the serum on the proliferation of mouse L 1210 leukemic cells were observed with MTT assay, clone formation and incorporation of [ 3H] TdR into DNA of the cells. Results Serum SCLA collected 1, 2, 4, 8 h after administration of 3, 6, and 12 g/kg SCLA showed significant decrease of MTT formazans and clone formation. Serum SCLA collected 2 h after drug administration showed more strong inhibition of cancer cell proliferation. It also inhibited the incorporation of [ 3H] TdR into DNA of L 1210 cells. Conclusion SCLA showed a remarkable inhibitory effect on proliferation and DNA synthesis of cancer cells cultured in vitro, which may be the main anticancer mechanisms of SCLA.