Objective:To understand the attitudes of medical students to public elective courses of humanistic quality and the existing problems. Method:Questionnaires were used in 1 ~5 grade students in randomly selected five medical colleges in Guizhou. Results:Total 1000 questionnaires were sent out, 957 were received, the recovery rate was 95. 7%;817 valid questionnaires, the effective rate was 81. 7%. 75. 56% of the students supported for medical colleges and uni-versities setting up humanistic quality public elective courses, but 24. 44% had negative attitude. Conclusions:It's nec-essary to make efforts to improve the mind medical student's humanistic quality. From the perspective of serving students, school should improve medical college students' humanistic quality from various aspects.

OBJECTIVE:To establish the quality standard for Anti-virus chewable tablet. METHODS:TLC was used for the qualitative identification of Forsythia suspensa,Anemarrhena asphodeloides and Pogostemon cablin in Anti-virus chewable tablet, and HPLC was conducted to determine the content of forsythin in F. suspensa. The column was Diamonsil C18 with mobile phase of acetonitrile- water (20∶80,V/V) at the flow rate of 1.0 ml/min,the detection wavelength was 230 nm,column temperature was 25℃,and injection volume was 10μl. RESULTS:The test sample and the reference sample displayed same color spots on the cor-responding position in TLC diagram. The linear range of forsythin was 0.053 5-2.675 μg(r=0.999 9);RSDs of precision,stabili-ty and reproducibility tests were no more than 1.74%;average recovery was 98.94%(RSD=1.84%,n=6). CONCLUSIONS:The method is simple,rapid,accurate,reliable and reproducible,and can be used for quality control of Anti-virus chewable tablet.

Objective: Our aim was to analyze the relationship between the concentration of some minerals in saliva and periodontitis.Methods:Twenty-five patients with adult periodontitis (AP group), 25 age and sex matched healthy people(N group) were selected. Unstimulated whole saliva samples were collected and qualified for the concentration of TCa,P,Mg2+, Na+,K+, and Cl-.　Clinical parameters on periodontitis were also assessed for the patients. All the aforementioned indices were measured repeatedly at the end of the fourth week after initial therapy. Results:The clinical condition of the patients improved significantly after treatment. The level of saliva Ca elevated before and after treatment in AP group than that in N group. Before treatment, the concentration of Na+ also increased significantly, but it decreased to normal level after initial therapy. The findings also indicated the positive relationship between the concentration of salivary Na+ and pocket probing depth as well as gingival index before treatment.Conclusion:The elevated level of saliva Ca is a sign of periodontitis and may help the occurrence and progress of periodontitis. The level of saliva Na+ may indicate the pocket depth and degree of gingivitis.The saliva Na＋ is closely associated with the clinical condition of periodontitis.

BACKGROUND: In clinic, many orthopaedic diseases are related to abnormal increase of intraosseous pressure, such as, avascular necrosis of femoral head and osteoarthritis and so on. Percutaneous bone puncture and other methods can decrease intraosseous pressure and release clinical symptoms immediately. Analysis on the changes in intraosseous pressure and medullary blood rheology following drilling decompression can further recognize the occurrence and development of intraosseous pressure OBJECTIVE: To observe the changes in intraosseous pressure and medullary blood rheology following drilling decompression in rabbits.DESIGN: A randomized and controlled trial.SETTING: Department of Orthopaedics, Affiliated Hospital of Youjing Medical College for Nationalities.MATERIALS: This experiment was carried out at Orthopaedic Department, Affiliated Hospital of Youjing Medical College for Nationalities between March and December 2005. Totally 30 New Zealand purebred white rabbits, of either gender, weighing (2.16±0.35) kg, were provided by Experimental Animals Center of Guangxi Medical University.METHODS: ① Animals grouping and modeling: 30 rabbits were randomly divided into 2 groups: model group and experiment group with 15 in each group. Intraosseous pressure models of the proximal right tibia were created on the rabbits in the two groups and drilling decompression was performed in the proximal tibia of rabbits in the experiment group. ②Measurement of intraosseous pressure of proximal tibia: After rabbits were anesthetized, needle for measuring blood pressure was pricked into the medullary canal at 0.5 cm internal plane up at the tubercle of right tibia.Intraosseous pressure of two groups was measured before and 2 days after decompression with BL-410 biologic functional system. ③ Measurement of medullary blood rheology: Before and 2 days after drilling decompression,medullary blood was extracted and blood rheology was measured with Blood Perfusion Monitor R80 (Vertebral plate type, Version 5.0) in the experiment group.MAIN OUTCOME MEASURES: Value of intraosseous pressure and medullary blood rheology before and after drilling decompression in the proximal right tibia.RESULTS: All the 30 rabbits entered the stage of result analysis. ①Measurement of intraosseous pressure: intraosseous pressure was significantly lower after drilling decompression in the proximal right tibia in the experiment group than in the model group (P ＜ 0.01). It approached normal value of intraosseous pressure of control side [(2.50±0.39) kPa]. Intraosseous pressure in the experiment group was significantly lower after than before drilling decompression (P ＜ 0.01). ② Measurement of medullary blood rheology: Medullary blood viscosity, plasm viscisity, whole blood reduced low-shear viscosity, red cell rigidity index, whole blood high-shear relative viscosity, whole blood low-shear relative viscosity, erythrocyte deformation index and erythrocyte aggregation index at the proximal end of tibia following drilling decompression were significantly lower than those before drilling decompression (P ＜ 0.05 or 0.01). Medullary erythrocyte sediment rate and erythrocyte hematocrit did not change significantly (P ＞ 0.05).CONCLUSION: Drilling decompression in proximal right tibia can obviously decrease intraosseous pressure, dilute medullary blood and decrease blood viscosity.

Taking 98th Hospital of PLA as an example, based on analyzing current existing problems in hospital data center, the pa-per introduces the plan of hospital cloud computing data center construction based on VMware virtualization technology, describes the de-sign principle, overall architecture, implementation steps and application effect, points out that the application of cloud computing tech-nology will become the construction and development direction of hospital data center.

Objective:To improve stress analysis in stress-intensive regions of human periodontal tissue. Methods:Based on coarse analysis on the finite element(FE) model including human teeth and periodontal tissue, the submodel method was introduced to analyze the stresses in interested region such as apical. Results:Submodel analysis showed same stress distribution as FE model while more precision of stress value was obtained by submodel because refined mesh was used.Conclusion:More accurate stresses measurements in local regions can be obtained by submodel method.

Objective To observe the curative effect of nicergoline in the treatment of chronic cerebral circulation insufficiency ( CC-CI) . Methods 160 cases with CCCI were randomly divided into the treatment group which were administered 10 mg of oral Nicergoline, three times per day for one month,and the control group which were given 20 mg of oral nimodipine,three times per day for one month. The clinical effective rate and the transcranial Doppler ultrasound ( TCD) between the two groups before and after treatment were observed. Results There were significant difference in clinical effective rate and TCD index assessment between the two groups(P<0. 05). Conclu-sion Nicergoline is an effective and safe treatment for chronic cerebral circulation insufficiency.

Streptococcal superantigens play an important role in many human diseases.In this paper,we mainly discuss the progress in the researches on streptococcal superantigens in such aspects as their structures,biological and pathophysiological properties,expression regulation,and their significance in the management of tumors.

Objective To explore the effect of dexamethasone(Dex)treatment on the expression of interleukin(IL)?6 and IL?8 in human peri?odontal ligament cells(hPDLCs). Methods hPDLCs were subjected to one of the following treatments for 24 h or 48 h:10-9 mol/L Dex;10-6 mol/L Dex;10μg/mL Porphyromonas gingivalis(P. g)?lipopolysaccharide(LPS);10-9 mol/L Dex+10μg/mL P. g?LPS;10-6 mol/L Dex+10μg/mL P. g?LPS;or 0.1%absolute ethyl alcohol(control). Protein and mRNA expression was detected using ELISA and real?time PCR ,respectively. Results At 24 h and at 48 h,IL?6 and IL?8 protein expression in the 10-9 mol/L Dex?and 10-6 mol/L Dex?treated groups was significantly lower than that in the control group(P<0.05). At 48 h,IL?6 mRNA expression in the 10-9 mol/L Dex?and 10-6 mol/L Dex?treated groups was signifi?cantly lower than that in the control group(P<0.05),while IL?8 mRNA expression in the 10-6 mol/L Dex?treated group was significantly higher than that in the control group(P<0.05). At 24 h and at 48 h,IL?6 protein and mRNA expression in the 10-9 mol/L Dex+10μg/mL P. g?LPS?treated group and the 10-6 mol/L Dex+10μg/mL P. g?LPS?treated group was significantly lower than that in the 10μg/mL P. g?LPS?treated group (P<0.05). At 24 h,IL?8 protein expression in the 10-9 mol/L Dex+10μg/mL P. g?LPS?treated group and the 10-6 mol/L Dex+10μg/mL P. g?LPS?treated group was significantly lower than that in the 10μg/mL P. g?LPS?treated group(P<0.05),while no such significant difference exist?ed at 48 h. At 48 h,IL?8 mRNA expression in the 10-6 mol/L Dex+10μg/mL P. g?LPS?treated group was significantly higher than that in the 10μg/mL P. g?LPS?treated group(P<0.05). Conclusion Dex inhibits the innate and P. g?LPS?induced expression of IL?6 in hPDLCs. However, Dex exerts profound effects on IL?8 expression,and treatment with high doses of Dex may promote IL?8 expression over an extended period.

This paper introduces a kind of design scheme with the application of M-bus to concentrated oxygen supply data acquisition and measurement.The method to integrate all kinds of consumable equipments and products of different companies is also presented.It is proved that the data acquisition system by M-bus can be applied to concentrated oxygen supply data acquisition and measurement in hospital.