Objective To optimize the technological parameters of separation and purification of vinblastine and vincristine from Gatharanthus Roseus. Methods Different types of macroporous adsorption resin were used to separate and purify vinblastine and vincristine from Gatharanthus Roseus, eluting with different concentration of alcohol aqueous and velocities, combined with silica gel column chromatography, the process was monitored by HPLC. Results AB-8 type resin showed better comprehensive adsorption property, 90% alcohol aqueous and 1.5 BV/h velocities were used to elute. Ratio adsorption quantity was achieved to 74.5 mg/g. Through silica gel column chromatography, the purity of vincristine was achieved to 97.26% and the purity of vinblastine was achieved to 94.18%. Conclusions The process is simple and reasonable with good reproducibility. It is effective to enrich highly purified vinblastine and vincristine.

OBJECTIVE:To improve hydroscopicity and fluidity of traditional Chinese drug extractum by spray drying and to improve affixes to the wall of the drier during drying for providing reasonable relative humidity of production.METHODS:The compounding of adjuvant and the technology were optimized by orthogonal experiment,and the hydroscopicity and fluidity of powdered extract were investigated.RESULTS:The hydroscopicity of traditional Chinese drug extractum can be greatly decreased by adding 3% gum arabic and 7% ?-CD.The optimum technological conditions were as follows:extractum density of 1.10g? mL-1,temperature of intake airflow of 170℃,atomization pressure of 0.5Mpa,and feed material speed of 400mL? h-1 by orthogonal experiment.The critical relative humidity of the optimum formula was 64%.CONCLUTION:The problems of time consuming and moisture absorption of traditional Chinese drug extractum existed in the traditional old technology can be improved in this new technology.

Objective The paclitaxel loaded solid lipid nanoparticles (PTX-SLNs) were prepared by an ultrasonic-dispersion emulsification technique. The stability of PTX-SLNs was investigated in this study. Methods The technology was preferenced by stability, Zeta potential, particle diameter, and entrapment efficiency as indexes. The doses of lipid materials and coemulsifier, the ultrasonic time, and the ultrasonic power were investigated in detail. Results The optimum prescriptions were definited by one-factor and orthogonal test. The adjuvant: glyceryl monostearate (100/150 mg), Fabaceous Lecithin (100 mg), coemulsifier Pluronic F68∶Tween 80 (2∶1). The samples were sonicated with an energy output of 300 W in 20 min after emulsified at (75?5) ℃. Conclusion The PTX-SLNs are successfully prepared and PTX-SLNs with high stability are fairly dispersed in colloidal solution. This technology has a nice prospect with safety and reliability.

Objective To explore the clinical effect of Weifuchun tablet combined with chemotherapy on patients with advanced non-small cell lung cancer (NSCLC).Methods Sixty-eight patients with advanced NSCLC was randomly divided into control group (n =34) treated with cisplatin + gemcitabine and treatment group (n =34) treated with Weifuchun tablet (1.436g × 2/d) and cisplatin + gemcitabine.After two treatment cycles,the clinical effect in both groups were evaluated.Results The clinical efficacy in the treatment group was 52.94％ (18/34),which in the control group was 41.18％ (14/34),there was no statistically significant difference between the two groups(x2 =0.94,P ＞ 0.05).The quality of life and the level of T lymphocytes were markedly improved,and the reduction of hemoglobin,leucocyte,and platelet,and nausea reaction were all significantly inhibited in treatment group compared with that in control group after two treatment cycles (x2 =4.12,4.66,5.96,4.12,5.90,all P ＜ 0.05).Conclusion Weifuchun tablet combined with chemotherapy effectively ameliorates the clinical symptoms of the patient with advanced NSCLC,reduces the toxic and side effects caused by chemotherapy,and improves the quality of life,which is worthy in the clinic.

Objective:To establish a method for rapid detection of OXA and par C resistance genes of Acinetobacter baumannii(Ab)by double nucleic acid colloidal gold strip and to develop kit.Methods:DNA of Ab was extracted by heating and boiling method.OXA and par C genes sequences of Ab were selected as target gene fragments based on NCBI.Primers were designed and labeled with 6-FAM,digoxin and biotin,respectively.Drug resistance gene detection reagents were developed,and nucleic acid gold test strips were used for rapid and visual detection.Molecular cloning and sequencing techniques were used to clone positive control samples and evaluate specificity,sensitivity and stability of kit.Results:DNA concentration and purity of Ab extracted by boiling method were good.Homology between cloned and sequenced plasmid DNA and gene sequence in GenBank database was 100%,respectively.Speci-ficity of kit was good,with only Ab showing positive results and other bacterial genera showing negative results;DNA concentration of Ab in double nucleic acid colloidal gold test strip decreased to 10-3 ng/μl,a red line still appeared,whose sensitivity was 10 times higher consistent with minimum detection limit of electrophoresis 10-2 ng/μl;test kits were tested at 3rd,6th and 9th months,and showed good stability.Conclusion:Double resistance detection kit established in this study can simultaneously detect OXA and par C resis-tance of Ab,who has advantages of high sensitivity,strong specificity,rapid and simple,and provides a new method for detection of carbapenem and quinolone antibiotic resistance of Ab.