Objective:To test the validity of the computer-added measure system in pre-clinical practice training of root canal treatment with resin transparent tooth models.Methods:Two groups of students prepared resin transparent tooth models in three ways.Transparent root canal preparation was conducted by the first group, blind root canal preparation and blind followed by transparent preparation were conducted by the second group. Resin transparent tooth models were scanned frontally and laterally before and after the preparation. The computer-added measure system was used to evaluate the effect of instrumentation. The data was analyzed by SPSS 10.0 software.Results:It was helpful to understand the change of root canal shape and the problems in instrumentation by using the computer-added measure system with resin transparent tooth models in pre-clinical practice training. The transparent preparation resulted in lower frequency of the preparation defects(P

Objective Traditional identification methods of pharmacognosy is difficult to distinguish the seeds of Panax ginseng and Panax quinquefolius. In order to improve the efficacy and accuracy of identification and provide the scientific foundation for the establishment of Chinese herbal medicine seed quality standards, molecular identification methods of the seeds were established by DNA barcoding technology. Methods The pharmacognostical identification method was used to study the morphological identification and microscopic characters of different seeds. DNA barcodes and Chinese Pharmacopoeia species standard barcode database were employed to identify the seeds by ITS2 sequence comparison, genetic distance comparison and systematic NJ tree construction. Results Intraspecific genetic distances of individuals participating were smaller than interspecific genetic distances. Phylogenetic tree map showed that two species were repectively clustered into one. A total of 42 samples of seeds from Panax ginseng and Panax quinquefolius produced by nine areas were all top-quality and easy to distinguish. Conclusion ITS2 DNA barcodes can identify and differentiate the seeds of P. ginseng and P. quinquefolius germplasm resources quickly, accurately and efficiently.

Objective To investigate the current status about nursing undergraduate students' knowledge,attitude and practice (KAP)regarding nosocomial infection.Methods The self-administered questionnaires were employed to survey 108 undergraduate nursing students on the basis of a simple random sampling method.Results In the knowledge dimension,the nursing students earned 78.3％ of accuracy rate when responding to the questionnaires.The students also demonstrated positive attitudes towards nosocomial infection and occupational safety,particularly the female students.In terms of practice,the students performed relatively poor as 36.1％ of the students were unclear about the classification of medical garbage and 22.2％ of the students used their non-clean hands to touch their eye-glasses.Conclusions The undergraduate nursing students have demonstrated adequate knowledge and proper attitude towards nosocomial infection and occupational safety,however,some behaviors need to be changed.Nursing schools and hospitals should be aware of these findings and provide more training programs regarding nosocomial infection and occupational safety so that they can help students formulate good habits to prevent and control nosocomial infection.

Objective To study and estimate the effective dose of interventional employees in the common cerebralvascular, cardiovascular and liver interventional diagnosis and treatment.Methods The absorbed doses of tissue or organ of anthropomorphic phantom in these three procedures were estimated by the anthropomorphic phantom experiment.The effective doses were calculated by the tissue weight factor which was given by International Commission on Radiological Protection publication 103.Results The effective doses to high, medium and low group were 24.0, 9.7,6.8 μSv for cerebralvascular interventional diagnosis and treatment, and 36.3, 29.3, 17.8 μSv for cardiovascular interventional diagnosis and treatment, and 23.9, 11.3, 5.5 μ Sv for liver interventional diagnosis and treatment, respectively.Conclusions The effective doses of high, medium and low group of interventional employees in cardiovascular interventional procedure are higher than those of cerebralvascular and liver interventional procedures.

Autoimmune Lymphoproliferative Syndrome ; diagnosis ; genetics ; immunology ; therapy ; Biomarkers ; blood ; Child, Preschool ; Humans ; Male ; Mutation ; Prednisolone ; administration & dosage ; therapeutic use ; Ultrasonography, Doppler, Color ; fas Receptor ; genetics

OBJECTIVETo detect the expression level of interleukin 17 (IL-17) in the plasma and colonic mucosa of patients with ulcerative colitis (UC), and to explore the synergistic mechanism of qingchang huashi recipe (QHR) combined with Mesalazine.

METHODSRecruited were 24 mild or moderate UC patients of damp-heat inner accumulation syndrome (DHIAS). Their samples of intestinal tissues were histologically graded. They were assigned to the combination group and the Western medicine (WM) group, 12 in each group. Besides, another 12 healthy volunteers were recruited as the healthy control group. QHR combined Mesalazine were given to patients in the combination group, while those in the WM group took Mesalazine. The therapeutic course for all was 3 months. By the end of treatment the expression level of IL-17 in the plasma and colonic mucosa was detected using ELISA. The infiltration of IL-17 in the intestinal mucosal tissue was detected by immunohistochemical SP method.

RESULTSThe expression level of IL-17 in the plasma and colonic mucosa was significantly higher in UC patients than in healthy controls (P <0. 05). The higher the histological grading the higher the expression level. The expression level of IL-17 in plasma and colonic tissues decreased after treatment in the two treatment groups (P < 0.05). Besides, the expression level of IL-17 was lower in the combination group than in the WM group (P <0.05).

CONCLUSIONQHR combined Mesalazine could synergically enhance the effect and effectively inhibit intestinal inflammation through down-regulating the expression of IL-17.

Anti-Inflammatory Agents, Non-Steroidal ; therapeutic use ; Colitis, Ulcerative ; drug therapy ; Drugs, Chinese Herbal ; therapeutic use ; Humans ; Immunologic Factors ; metabolism ; Inflammation ; metabolism ; Interleukin-17 ; metabolism ; Intestinal Mucosa ; drug effects ; Intestines ; metabolism ; Mesalamine ; therapeutic use

Adolescent ; Bone Marrow Transplantation ; Child ; Child, Preschool ; Female ; Humans ; Infant ; Male ; Thalassemia ; surgery ; Transplantation Chimera

Bibliometrics ; Biochemistry ; Biotechnology ; China ; Journal Impact Factor ; Periodicals as Topic ; statistics & numerical data ; Science

Objective: To investigate the cultural and psychological adaptation of business expatriates in the Chinese mainland. Methods: The questionnaires included sociocultural adaptation questionnaire and psychological adaptation questionnaire. Results: The construct of sociocultural adaptation could be divided into three dimensions: living conditions, interaction and communication, and cognition and value system. The sociocultural adaptation pattern showed a double-U-curve and the psychological adaptation pattern showed a decreasing tendency by time. There was no significant discrepancy in sociocultural adaptation across cultural distance. Conclusion: The cultural and psychological adaptation is difficult for business expatriates in China. The reasons perhaps include insufficient cultural training and improper training time.

Actins ; metabolism ; Adenoma, Pleomorphic ; congenital ; metabolism ; pathology ; surgery ; Diagnosis, Differential ; Fibrosarcoma ; metabolism ; pathology ; Humans ; Infant ; Male ; Nasopharyngeal Neoplasms ; congenital ; metabolism ; pathology ; surgery ; Rhabdomyosarcoma ; metabolism ; pathology ; Salivary Gland Neoplasms ; congenital ; metabolism ; pathology ; surgery ; Vimentin ; metabolism