OBJECTIVE: To study the assessment method of investment venture of new drug projects. METHODS: Based on the characteristics of new drug technology projects, a comprehensive evaluation index system was set up from the angle of investment venture,and projects investment optimization model was then presented by fuzzy-comprehensive evaluation together with analytic hierarchy process. RESULTS & CONCLUSIONS: This model comprehensively reflects the investment venture of new drug project and it serves as basis for decision making of new drug project investment.

Objective To determine the reversal effect of psoralen on multidrug resistance (MDR) in the harringtonine (HT)-resistant leukemic cell line HL60/HT. Method The modulating effect of psoralen on MDR in HL60 and HL60/HT cells were determined by the measurement of cell growth and viability via MTT assay. High performance liquid chromatography(HPLC) was used to analyze intracellular HT concentrations in HL60/HT and HL60 cells treated with psoralen. Result Psoralen from 1 to 20 μmol/L could reduce the value of IC50 to HT and enhance the accumulation of HT in HL60/HT cells. Conclusion Psoralen can reverse MDR of HL60/HT cells and is a potential modulator of MDR.

Objective To determine the reversal effect of psoralen on multidrug resistance (MDR) in the harringtonine (HT)-resistant leukemic cell line HL60/HT. Method The modulating effect of psoralen on MDR in HL60 and HL60/HT cells were determined by the measurement of cell growth and viability via MTT assay. High performance liquid chromatography(HPLC) was used to analyze intracellular HT concentrations in HL60/HT and HL60 cells treated with psoralen. Result Psoralen from 1 to 20 ?mol/L could reduce the value of IC_ 50 to HT and enhance the accumulation of HT in HL60/HT cells. Conclusion Psoralen can reverse MDR of HL60/HT cells and is a potential modulator of MDR.

AIM:To do cluster analysis on the herb active ingredients with reversal activity of multi-drug resistance in HL60/HT cells.METHODS:HL60/HT cell was used to check the inhibitory effect of Psoralen,psoralen-A,curcumin,quercetin,psoralidin,isopsoralidin,psoralen phenol,Rhein on cell proliferation by MTT assay.Flow cytometry was used to measure HL fluorescence index and the expression of P-glucose protein.On the basis of the experimental data,herbs were classified as different groups by cluster analysis.RESULTS:Reversion rate,HT concentration and P-gp expression of HL60/HT fell within the range of 6.2 to 12.5,9.6 to 25.6,and 29.3 to 50.1,respectively.CONCLUSION:According to cluster similarity,8 herbal ingredients could be divided into three groups,psoralen,curcumin and quercetin were in the first group.Psoralen-A,psoralidin,isopsoralidin and rhein were in the second group,psoralen phenol was in the third group.

AIM:To do cluster analysis on the herb active ingredients with reversal activity of multi-drug resistance in HL60/HT cells.METHODS:HL60/HT cell was used to check the inhibitory effect of Psoralen,psoralen-A,curcumin,quercetin,psoralidin,isopsoralidin,psoralen phenol,Rhein on cell proliferation by MTT assay.Flow cytometry was used to measure HL fluorescence index and the expression of P-glucose protein.On the basis of the experimental data,herbs were classified as different groups by cluster analysis.RESULTS:Reversion rate,HT concentration and P-gp expression of HL60/HT fell within the range of 6.2 to 12.5,9.6 to 25.6,and 29.3 to 50.1,respectively.CONCLUSION:According to cluster similarity,8 herbal ingredients could be divided into three groups,psoralen,curcumin and quercetin were in the first group.Psoralen-A,psoralidin,isopsoralidin and rhein were in the second group,psoralen phenol was in the third group.

Signal transduction is a very fine and complicated process that indudes participation in the cell propagation, division, maturation and apoptosis.Under normal circumstance disabled-2( Dab2) in human tissues participates in the signal transduction of the cell in order to allow the body to keep normal functions,but under some circumstances the absence of Dab2 influences the normal signal transduction path,leding to atypical cell changes.and the generation of tumors.This paper is a review on the construction and function of Dab2 and its related gene as well as the relation of Dab2 and tumors generation.

OBJECTIVE: To observe the synergetic effect of Xuebijing injection and Cefoperazone Sodium/Sulbactam Sodium for the treatment of patients with sepsis.METHODS: Patients with sepsis were randomly assigned to receive Cefoperazone Sodium/Sulbactam Sodium 3 g bid alone by iv drip(Control Group,75 cases) or in combination with Xuebijing injection(100 mL bid,79 cases) for 7 days.RESULTS: The total efficective rate after 7-day treatment had significant difference between two groups(86.67% in control group versus 94.94% in treatment group,(P

Objective To observe the effects of bone marrow mesenchymal stem cells(BMMSCs) conditioned-medium (B-CM) on apoptosis in cultured cortical neurons after hypoxia-reoxygenation in vitro in rats.Methods BMMSCs were isolated,cultured and expanded,the culture me-dium was substituted by new medium that contain no serum when cells grew to 90% confluence.After cultured for 24 hours,the medium was collected as B-CM.Cortical neurons of mouse cultured for 8 days were divided into three groups:normal control groups,hypoxic group,B-CM disposed groups.Cell viability were detected by 3-(4,5-dimethlthiazd-2-yl)-2,5-diphenyltetra-zoliu bromidel (MTT) methods and the apoptosis of neurons was examined by flow cytometry and telemicroscopy on hypoxia for 0,6 hours and hypoxia-reoxygenation for 24 hours,respectively.Results Compared with control group,hypoxia for 6 hours could decrease cell viability,hypoxia-reoxygenation for 24 hours increased the cell apoptosis ratio remarkably(P

This paper presents how Shantou University Medical College constructs the campus culture with its own characteristics to cultivate the high caliber students.And then four ways to build campus culture will be discussed in this paper.