Objective:To determine the effect of standardized patients in medical international students' graduation practice assessment.Methods:The students were divided into two groups ofstandardized patient assessment and traditional assessment,the theoretical and professional performance was compared and analyzed after the assessments.All the students were investigated using questionnaire.Result:The students assessed using standardized patients reported higher skill scores than those with traditional assessments,and the difference was statistically significant.However,no difference was observed in theoretical scores.Gorcltusion:The introduction of standardized patient to medical international students' graduation practice assessment alleviates the status that emphasizes theory but ignores practice due to the lack of clinical resources,eliminates the obstacles in the communication between students and patients,and is conducive to the cultivation of humanistic quality and adaptability of the students.It is worthy popularizing in international students' graduation practice assessment.

The basical structure of diketopiperazines is a cyclic dipeptide condensed by two amino acids. Because of the stable framework of the six-member ring structure, and having two hydrogen bond donor and two hydrogen bond receptor, DKPs have become important chemical pharmacophores, with strong biological activities and pharmacological activities in the drug. A series of cyclic compounds were found from marine organisms in recent years, research showed that their functions are not limited on anti-bacterial, cytotoxic activity, and so on, but also playing an important role in regulatory mechanism of quorum sensing as signal molecules, they have become research hot point in ecological chemistry. This paper reviewed the research progress of diketopiperazines found in the marine microbial metabolites, and the future study trends was discussed and outlooked.

Objective To investigate the position competency of residents in the first year and to search for the standardizing training which aims at advancing position competencies. Method Twenty residents of the first year and 40 of superior doctors were taken as research targets. Question-naires including 8 aspects (basic ability, occupational spirit, communication skills, medical knowl-edge, team work, public health, information and management, and academic research) were con-ducted and were scored namelessly. The scores of items in one kind of ability were summed up to serve as the total score of this ability. The mean score of one kind of ability and the mean score of 8 kinds of abilities of residents and superior doctors was calculated. SPSS 17.0 was adopted to make statistical analysis. t-test was adopted to test the difference between the score from residents and superior doctors with P<0.05 representing statistics significance. Results The scores of 8 kinds of abilities were much lower than full scores. The scores of basic ability, occupational spirit, and team work from residents (78.5, 87.4, 41.9) were higher than those from superior doctors (72.6, 80.5, 39.5), with statistical significances (P=0.020, 0.013, 0.045). Conclusions Residents are lack of position competency and awareness, which demonstrates the gap between the training model and the demand of work. It is sug-gested that we should design the training system and evaluation methods based on doctors' compe-tences, add training for comprehensive ability and evaluate abilities of all aspects. An excellent hu-manity education should be built and quality cultivation should be taken attention to. Objective and measurable indices should be developed to increase residents' knowledge.

Objective:To find biomarkers for oral lichen planus by comparing differential expressing proteins. Methods:10 cases of oral lichen planus and normal oral mucosa tissues were collected.Total protein was extracted; differential proteome profiles were established and analyzed by two-dimensional polyacrylamide gel electrophoresis(2D-PAGE) and matrix-assisted laser desorption/ionization time of flight mass spectrometry (MALDI-TOF-MS). Results:(1)The well-resolved,reproducible 2-DE patterns of oral lichen planus and normal oral mucosa were obtained. The results showed that average protein spots were 1 576?67 and 1 608?73 in oral lichen planus and normal oral mucosa respectively, (2) The 13 differential protein spots were identified by Imaging Master 2D image analysis software between oral lichen planus and normal oral mucosa. There were 7 protein spots in oral lichen planus were higher than those in normal oral mucosa, 6 protein spots in oral lichen planus were lower than those in normal oral mucosa. 10 differential expressing proteins were analyzed by mass spectrometry and bioinformation. 4 of them were well characterized including manganese superoxide dismutase (Mn-SOD), Annexin I, vimentin and unknown proteins. Conclusion:Differential expression proteins might be candidate biomarkers for diagnosis of oral lichen planus;and proteomic technique is valuable for screening the diagnostic biomarkers.

Objective To evaluate the effects of various head and neck postures and phonation on oropharyngeal view(Mallampati score),and ex-plore the correlation with laryngoscopic view tested by the improved Cormach-Lehane score(MCLS). Methods Following the local ethics commit-tee approval and patients′informed consent to anesthesia,124 patients were enrolled for this study. Prior to anesthesia,these patients were placed in supine position with various head and neck positions for oropharyngeal structures visualization and evaluation,including two head positions(neu-tral and full extension),two tongue positions(in and out),and with and without phonation,according to the modified Mallampati test score(MMT). Following induction,laryngoscopic view scores according to MCLS were recorded,then the sensitivity,specificity,positive and negative predictive value and accuracy of the various MMT scores were calculated. Correlation coefficient(r)of MMT scores with MCLS were also studied. Results Mallampati score was decreased in all the postures of head full extension,tongue outside and phonation,which makes oropharyngeal structures to be better visualized. There is no correlation between MMT scores and MCLS. The sensitivity,specificity,positive and negative predictive value and accu-racy of the various MMT scores is most satisfied in the posture of head full extension,tongue outside and phonation. Conclusion During airway as-sessment in supine position,the best posture is head full extension,tongue outside and phonation.

Object To select the cell line of Ginkgo biloba L that may produce high yield of ginkgolide B (GB) in suspension culture and to study the stability of GB in subculture Methods Calculus was induced with stem, root and leaf of selected elite species and high yield suspension cell lines chosen by hypoxia stress Results Seven suspension cell lines with improved yield of GB were obtained Among which cell line MH 3 gave a 3 71 fold increase of cellular bioproduct with an increased content up to 302 ?g/g DW after culturing for 18 d, a leading record country wide In shaking bottle culture, it showed a consistent yield of GB with a content of 291 ?g/g DW in 6 successive subcultures, coefficient of variation=0 131 Conclusion The suspension cell line selected by hypoxia stress gave a higher yield and stability in successive transfer culture

Total 1188 subjects aged 35-74 in an urban community of Beijing were recruited by a multistage stratified random sampling procedure. Dental caries were examined by three dentists independently. The prevalence of dental crown caries was 79. 6% (DF), that of DMFS was 24. 39% and the root caries index (RCI) was 3.5% in this group. 22. 3% of the examinees required treatment for the crown caries and 26. 0% for root caries. Bivariate correlation analysis showed that DMFS was significantly correlated with RCI (P <0. 01 ), and there was no significant difference of DMFS and RCI between males and females. The study indicates that dental caries is a common health problem in adults and elderly population of urban Beijing, and the development of community oral health service system is necessary.

[ ABSTRACT] AIM:To investigate the effect of Jia-jian-yi-yin decoction on endothelium-dysfunction in ovariecto-mized rats.METHODS:The ovariectomized rats were treated with Jia-jian-yi-yin decoction or turbid liquid of estradiol va-lerate for 8 weeks.The vascular ring tension was measured.Scanning electron microscopy and Western blotting were ap-plied to assess the function of endothelium-dependent dilation, aortic endothelial morphology and the expression of endothe-lial lipase.The pathologic sections were prepared to observe the effect of Jia-jian-yi-yin decoction on the uterus.RE-SULTS:In ovariectomized rats, the decrease in endothelium-dependent relaxation to acetylcholine ( ACh) was reversed to normal level, the endothelial morphology returned to normal without lipid accumulation and the endothelial lipase expression was decreased by Jia-jian-yi-yin decoction.Furthermore, no obvious change of the wet weight of uterine between the ovari-ectomized rats with or without Jia-jian-yi-yin decoction treatment was observed.CONCLUSION:Jia-jian-yi-yin decoction may have protective effects on endothelium-dependent vasodilation and aortic endothelial morphology in estrogen-deficient animals.

Objective:To improve the quality and efficiency of pharmaceutical care of clinical pharmacists by standardizing phar-maceutical care process using tracking table design for clinical drug therapy. Methods: The experience and skills of pharmaceutical care performed by clinical pharmacists in endocrinology department were summarized and the tracking table for clinical drug therapy was designed, which could provide information for patients clearly and concisely, and make the process of pharmaceutical care more system-atical. Results:After using the tracking table, clinical pharmacists improved work efficiency significantly. In addition, the average hospitalization, average hospitalization expenses and drug proportion significantly reduced resulting in higher satisfaction of patients. Conclusion:The standardized pharmaceutical care process performed by clinical pharmacists in endocrinology department makes phar-maceutical care more specific, comprehensive and convenient.

Objective: To identify the different protein expression profiles between human oral squamous cell carcinoma (OSCC) and normal oral mucosa tissues, and provide experimental data for further study of the development mechanism of OSCC. Methods: 10 cases of OSCC and paired normal oral mucosa tissues were collected and analyzed through two-dimensional gel electrophoresis (2-DE) and matrix-assisted laser desorption/ionization time of flight mass spectrometry (MALDI-TOF-MS). Results: (1) The average protein spots of OSCC were 2 325±390, while that of normal oral mucosa tissues were 2 487±281. (2) 29 differential protein spots were found between OSCC and normal oral mucosa. Moreover, these protein spots were all down- regulated in OSCC compared with normal oral mucosa. Among these spots, 3 were identified as fibrin beta, triosephosphate isomerase (TIM) and unknown protein through mass spectrometry and bioinformation. Conclusion: Down-regulation of fibrin beta, Triosephosphate isomerase(TIM) and unknown protein are found in the development of OSCC and the mechanism needs further study.