Objective To Investigate the effects of antipsoriatic drugs on 5 lipoxygenase(5－LO) and set up a relevant pharmacodynamic method. Methods 5－ LO products, leukotriene B4 (LTB4) and 5 hydroxyeicosatetraenoic(5－HETE), we re determined by RP－HPLC to represent 5－LO activity. Results Cyclosporin A( CyA) and triptolide(T0) inhibited the production of LTB4 and 5－HETE in a dose dependent manner, while erythromycin did without dose dependence. The 50％ inhibitory concentration values(IC50) of CyA inhibiting LTB4 and 5－HETE were 3 8.0? g/mL and 0.96? g/mL, respectively. The IC50 of T0 inhibiting LTB4 and 5－ HETE were 2.3? 10－6? g/mL and 1.14? 10－6? g/mL, respectively. Conclusio ns The anti inflammatory effect of Tripterygium wilfordii Hook.f. may be partl y explained by its inhibition of 5－LO activity. The anti inflammatory effect of CyA has no clinical significance since the inhibitory concentration of CyA h as exceeded its pharmacological limitation. Erythromycin has no effect on 5－LO activity.

Objective To study the outcome of surgical therapy of perforation of gastric cancer. Methods The clinical data of 37 cases with perforation of gastric carcinoma which underwent different surgical procedures were analyzed retrospectively. Among them,24 cases underwent partial gastrectomy,8 cases underwent radical mastectomy,4 cases had repair of perforation. 1 case received non-operative therapy. Results The preoperative diagnotic rate was 24.3%,and misdiagonsis rate was 75.7%. The perioperative mortality rate was 5.4%,including 1 case that underwent repair of perforation. The post-operative complication rate of patients undergoing palliative gastrectomy,radical gastric cancer operation and repair of perforation was 41.7%,25.0% and 75.0%,respectively,and the mean survival time was 25 months,29 months and 3.0 months,respectively.The partial gastrectomy and radical mastectomy patients had significantly better outcomes than those who underwent repair of perforation or received non-operative therapy.Conclusions For patients with perforation of gastric cancer with resectable lesions and who are in good general coaditon,a one-stage radical gastric resection or palliative subtotal gastrectomy can be performed.

Objective To investigate the effects of some compounds,bestatin,tripdiolide,etc,on leukotriene A4hydrolase activity.Methods LTB4,product of leukotriene A4hydrolase,was determined by reverse phase high performance liquid chromatography(PR-HPLC).Bestatin,an inhibitor of LTA4hydrolase was used as a positive control.Results Tripdiolide could inhibit LTA4hydrolase activity in a dose-depen-dent pattern.The50%inhibitory concentration values(IC 50 )was2.58?10 -5 ?g/mL.The other compounds,an-thralin,cyclosporin A,tretinoin,calcipotriene,clobetasol propionate,methotrexate,and erythromycin,had no effects.Conclusions Tripdiolide possibly has anti-inflammatory effect through down-regulation of leukotriene A4hydrolase in psoriasis.

Objective To investigate the best time of the mesenchymal stem cells(MSCs) transplantation after myocardial infarction(MI),in order to provide prophase experimental basis for treatment of the diseases correlating to cadiocyte necrosis by cells transplantation.Methods Thirty New Zealand big-ears albino rabbits,which aging were older than or equal to 36 months were selected(a 36-month rabbit is the advanced age rabbit,equaling a person 60 years old).Model of MI was made by ligating anterior descending branch.The model rabbits were randomly divided into six groups(control group,1 d group,1-week group,2-week group,3-week group;and 4-week group,n=5).200 ?L cells after marked were drawed and injected in multiple positions of myocardium after MI in 1 d group,1-week group,2-week group,3-week group and 4-week group separately.The rabbits in control group were injected with saline of equal quantity.The cardiac functional parameters,blood flow rate of atrioventricular valve and the hemodynamics at eighth week in various groups were measured.Results Compared with control group,the treatment of MSCs transplantation for MI improved the heart function.The cardiac functional parameters,blood flow rate of atrioventricular valve and the hemodynamics in 1 d group was higher than those in control group(P0.05).The cardiac functional parameters,blood flow rate of atrioventricular valve and the hemodynamics in 1-week,2-weeks and 3-weeks groups were better than those in 1 d group(P0.05).Conclusion In the condition of the same cell-density but the different time of MI,the transplantation time window is 1 d-3 weeks after MI,which is advantageous to the amelioration of heart function,the best time of transplantation was 1-3 weeks after MI.

BACKGROUND: Blood platelet is active commonly appeared in both acute and recovery stages in ischemic cerebral apoplexy. Cyclic adenosine monophosphate (cAMP) and cyclic guanosine monophosphate (cGMP) are closely correlated with the blood platelet function.OBJECTIVE: To observe the therapeutic effects of compound danshen drop on clinical prevention and treatment of transient cerebral ischemic attack (TIA) and the influence on serum cAMP and cGMP.DESIGN: Randomized control experiment.SETTING: Department of Neurology of Binzhou Medical College affiliatedHospitalPARTICIPANTS: Totally 180 TIA patients participated in the experiment in volunteer in the clinic of Neurological Department of Affiliated Hospital of Binzhou Medical College from September 2000 to April 2001. Based on randomized number scale, 3 groups were divided according to dosages of compound danshen drop. In 10 drops/d group, there were 60 cases, of which 35 cases were male and 25 cases female, aged varied from 50 to 70 years, averagely (54.3±7.2) years old. In 20 drops/d group, there were 60 cases, of which, 32 cases were male and 28 cases female, aged varied from 49 to 62 years, averagely (55.7±5.1) years old. In 30 drops/d group, there were 60 cases, of which, 33 cases were male and 27 cases female, aged varied from 52 to 69 years, averagely (54.9±5.5) years old.METHODS: In 10 drops/d group, the drug was given once per day, 10drops each time. In 20 drops/d group, the drug was given twice per day,10 drops each time. In 30 drops/d group, the drug was given three times per day, 10 drops each time. Four weeks after medication, 3 mL blood was collected from each patient in the morning. With radioimmunoassay, the contents of cAMP and cGMP in serum were determined. Each case was tions, gem bleeding, epistaxis, subcutaneous bleeding, mouth numbness,headache, dizziness, etc.tack: In 10 drops/d group, there were 1 case in internal carotid arterial system, 2 cases in vertebral arterial system, 1 case of cerebral infarction and 2 cases of myocardial infarction. In 20 drops/d group, it was 2, 2 and 1 cases successively and in 30 drops/d group, it was 1, 2, 1 cases succesgroup: There were 1, 2 and 4 cases of harmful accident and side effects in three groups successively, of which, peripheral numbness of mouth 1 case in 10 drops/d group, 1 case of either peripheral numbness of mouth or headache in 20 drops/d group, gastrointestinal reaction 1 case, peripheral numbness of mouth 2 cases and dizziness 1 case in 30 drops/d group.There was no gem bleeding, epistaxis and subcutaneous bleeding, and no patient was withdrawn the treatment due to above-mentioned side effects.With comparison among groups, significant difference was not indicated The contents of cAMP were (21.22±3.94), (22.5±3.67), (23.1±7.7) ng/Land cGMP were (3.67±1.18), (4.74±2.12), (4.6±0.7) ng/L successively in three groups (P ＞ 0.05).CONCLUSION: During second-grade prevention of TIA, compound danshen drop presents definite therapeutic effects, which is basically same in comparison of dosages. Simultaneously, no remarkable side effects appear.

Objective:To discuss the effect of over-expression of solute carrier family 7 member 5(SLC7A5)gene on the apoptosis of ovarian granulosa cells of the rats,and to clarify its related mechanism.Methods:Four 3-week-old SPF grade SD female rats were used to extract the primary ovarian granulosa cells of the rats.These cells were divided into negative control group(NC group)and follicle-stimulating hormone receptor(FSHR)staining group(FSHR group).Immunofluorescence staining was used to detect the expressions of FSHR protein in the ovarian granulosa cells of the rats to identify the successful isolation of the primary ovarian granulosa cells of the rats.The ovarian granulosa cells were divided into control group(transfected with empty vector plasmid)and OE-SLC7A5 group(transfected with SLC7A5 over-expression plasmid).Real-time fluoresscence quantitative PCR(RT-qPCR)and Western blotting methods were used to verify the transfection efficiency of the cells;flow cytometry was used to detect the apoptotic rates and cell cycle percentages of the ovarian granulosa cells in two groups;RT-qPCR method was used to detect the expression levels of SLC7A5,cysteinyl aspartate specific proteinase(Caspase)-3,Caspase-8,and tumor necrosis factor-α(TNF-α)mRNA in the ovarian granulosa cells in two groups;Western blotting method was used to detect the expression levels of SLC7A5,Caspase-3,cleaved Caspase-3,Caspase-8,cleaved Caspase-8,and TNF-α proteins in the ovarian granulosa cells in two groups.Results:The fluorescence microscope observation results showed that the ovarian granulosa cells appeared spindle-shaped or irregular and specifically expressed FSHR.No FSHR green fluorescence was observed in NC group,while FSHR green fluorescence expression was observed in FSHR group,indicating successful isolation of primary ovarian granulosa cells of the rats.Compared with control group,the expression levels of SLC7A5 mRNA and protein in the ovarian granulosa cells in OE-SLC7A5 group were significantly increased(P<0.05),indicating successful transfection of SLC7A5 over-expression plasmid into the ovarian granulosa cells.The flow cytometry results showed that compared with control group,the apoptotic rate of the cells in OE-SLC7A5 group was significantly increased(P<0.05).Compared with control group,the percentage of the ovarian granulosa cells at S phase in OE-SLC7A5 group was significantly decreased(P<0.05).The RT-qPCR results showed that compared with control group,the expression levels of TNF-α,Caspase-3,and Caspase-8 mRNA in the ovarian granulosa cells in OE-SLC7A5 group were significantly increased(P<0.05).The Western blotting results showed that compared with control group,the expression levels of TNF-α,Caspase-8,cleaved Caspase-8,Caspase-3,cleaved Caspase-3,and SLC7A5 proteins in the ovarian granulosa cells in OE-SLC7A5 group were significantly increased(P<0.05).Conclusion:The increased expression of SLC7A5 protein promotes the apoptosis of the granulosa cells by upregulating the expressions of TNF-α,Caspase-8,and Caspase-3 apoptotic pathways.

Metabolomics,a hot field of research of life science in recent years,is to analyze endogenous smallmolecule metabolites in biological samples for an overall understanding of the characteristics of metabolic disorders.A growing number of studies have confirmed the application of metabolomics for clinical diagnosis and treatment of diseases."Metabolic fingerprint" of biological fluids can be employed for disease prevention,timely diagnosis,accurate treatment,prognostic assessment and drug discovery.Clinical metabolomics is to measure low-molecule-weight metabolites' alterations of individuals in response to physiological stressors,disease processes,or drug therapy,aiming to discover potential biomarkers and drug targets.Coronary artery disease (CAD) is characterized as complex molecular events.Metabolic disturbances are involved in CAD progression.The application of metabolomics to CAD is an emerging field.Advances in metabolomics improve our knowledge on CAD in early diagnosis,prognostic prediction,and personalized therapy.