Objective To investigate the effectiveness of the comprehensive quantitative　assessment system in the review of senior clinical titles so as to set up a comprehensive appraisal　system for clinicians.Methods A retrospective analysis was made to compare the objective parameters　for performance appraisal of the applicants for senior titles before and after the adoption of the　comprehensive quantitative assessment system,namely,between 2003 to 2006 and 2007 to 2010.Results The parameters were improved in aspects of clinical practice,education and research.And　the average age of applicants was lowered.Conclusion The new assessment system works well for　clinician appraisal,and produces a positive guiding effect of the senior title review on hospital　development.Suggestions are also made to solve the existing problems and to improve the system.

Prof. LIN Ying-qiang,a famous bone-setting and massage doctor,is good at treating soft tissue injury. He emphasizes not only on 'treatment aiming at its pathogenesis' but also on application of anatomy and biomechanics in clinic. His bone-setting manipulations based on 'explosive force'manipulation and herbal get remarkable clinical effects on the treatment of neck-shoulder and lumbocrural pain.

0 05); The protein expression of erbB2 in carcinomas of palate and floor of mouth were obviously higher than the expression in lip cancer and gingival carcinoma( P 0 05).Conclusion The amplification and overexpression of c erbB2 and p53 play important roles in the formation and development of OSCC, the overexpression of c erbB2 protein has more important significance in tumorigenesis of carcinomas of palate and floor of mouth; Not only transcriptional regulation but also translational modulation exists on the expression of c erbB2 and p53. [

Objective To measure the thumb manipulative forces of Lin cervical rotation manipulation during cracking sounds,and provide quantitative basis for its inheritance,teaching and learning,promotion and basic research of the manipulation.Methods The thumb manipulative force of Lin cervical rotation manipulation and traditional cervical rotation manipulation during cracking sounds were tested and recorded with a multi-film pressure measurement system.Result There was statistically significant difference between the maximum thumb manipulative force of the hand used frequently and the hand used infrequently (P ＜ 0.05).The maximum thumb manipulative force of Lin cervical rotational manipulation is lower than the traditional cervical rotation manipulation (P ＜ 0.05).Conclusion Whether inIN traditional or Lin cervical rotation manipulation,the maximum thumb manipulative force of the hand used frequently is more than the hand used infrequently.Lin cervical rotation manipulation has better ergonomic characteristics of biological engineering,safer,more low energy consumption practices.

[Objective] To obtain the genetic information on Necator americanus and to search for the purpose genes.[Methods] Mrna was isolated from the third stage larvae of Necator americanus maintained in hamsters.Double strand Cdna was synthesized and ligated to ΛzapⅡ vector to construct the Cdna library.Expresed se-quence tages (ESTs) were obtained by single pass sequencing of randomly isolated Cdna clones from the es-tablished library.[Results] A Cdna librazy of N.americanus was successfully constructed with high recombi-nant efficiency.The titer of unamplified library was 1×107.The insert size was about 750～3000bp.Of 11 ESTs obtained from the library,7 have a significant homology with certain functional genes.[Conclunsion]A high quality and high representative Cdna library of N.americanus was constructed at the first time and ome functional genes were identified from the library by ESTs.

BACKGROUND: The researches of Pulling and Rotating Oblique Pulling Manipulation focus on clinical research and biomechanical changes of lumbar functional units, and the mechanical characteristics of manipulation are little reported.OBJECTIVE: To study the characteristics of the Pulling and Rotating Oblique Pulling Manipulation by digital method, so as to provide quantitative basis for inheritance, teaching and learning, promotion, and basic research of the manipulation.METHODS: The force-time curve and the force of the manipulators were tested and recorded with the multi-point membrane pressure measurement system. The kinetic parameters (the average load force, the average minimum force and the maximum impact force) were shown. The values of = the flip time, flip speed and impulse were measured by the test analysis system.RESULTS AND CONCLUSION: (1) The average load force was (145.86±34.80) N, duration was (1.43±0.46) s, the average minimum force was (72.24±13.87) N, the maximum impact force was (446.21±143.98) N, the flip time was (0.55±0.15) s, flip speed was (914.52±259.18) N/s, and the impulse was (256.21±82.30) N?s. (2) The rising slope of the impulse was (93.96±6.94), and the falling slope was (-82.70±26.10). (3) To conclude, the characteristics of manipulation from hand are analyzed in views of digitization, which provides an objective evaluation index for Lin's manipulation.

OBJECTIVETo investigate the expression of mdr1 gene in hematopoietic cells of a murine bone marrow transplantation model and to explore the feasibility of transferring mdr1 gene into hematopoietic cells to pro-vent myelosuppression from chemotherapy.

METHODSmdr1 gene was transferred into hematopoietic cells of murine bone marrow by retrovirus vector. The expression and function of mdr1 gene in vivo was tested in a murine bone marrow transplantation model.

RESULTS(1) mdr1 gene was successfully transferred into murine MNC, the transduction rate was 35%. (2) mdr1 gene transferred murine bone marrow transplantation model was established successfully by scheduled-bone marrow transplantation method. (3) In 1 approximately 5 months period, stable and effective expression of mdr1 gene could be detected in hematopoietic cells of the recipient mouse, the percentage of mdr1 gene expression cells in recipient's hematopoietic cells decreased monthly to 8.0%, 8.0%, 7.5%, 4.0% and 3.0%. (4) mdr1 expression hematopoietic cells had efficient resistance to chemotherapy.

CONCLUSIONIt is an effective approach to transfer mdr1 gene into hematopoietic cells for preventing myelosuppression in chemotherapy.

ATP-Binding Cassette, Sub-Family B, Member 1 ; genetics ; metabolism ; Animals ; Antibiotics, Antineoplastic ; pharmacology ; Antineoplastic Agents, Phytogenic ; pharmacology ; Bone Marrow Cells ; cytology ; drug effects ; metabolism ; Bone Marrow Transplantation ; Daunorubicin ; pharmacology ; Drug Resistance, Multiple ; Gene Expression ; Genetic Vectors ; genetics ; Hematopoietic Stem Cells ; cytology ; drug effects ; metabolism ; Leukocyte Count ; Leukocytes, Mononuclear ; cytology ; drug effects ; metabolism ; Mice ; Mice, Inbred BALB C ; Models, Animal ; Paclitaxel ; pharmacology ; Retroviridae ; genetics ; Transfection

OBJECTIVETo study the effect of platelet-derived growth factor-BB (PDGFBBB) on rat corpus cavernosum smooth muscle (CCSM) cell proliferation, migration and phenotypic modulation and explore the underlying mechanisms.

METHODSWistar rat CCSM cells were obtained through a modified tissue culture method and identified by immunofluorescence assay. The effect of PDGFBB on the proliferation of CCSM cells was investigated using a CCK-8 kit and the optimum PDGFBB concentration for cell treatment was determined. CCSM cells were treated with vehicle or PDGF-BB at the optimum concentration, and the cell migration was examined using scratch assay; the mRNA expression of the transcription factor myocardin and the contractile phenotype markers αSMA and SMMHC in CCSM cells were determined by qRT-PCR at 24 h and 48 h. The protein expression of myocardin in CCSM cells incubated with PDGFBB for 0, 24 and 48 h was examined by Western blotting.

RESULTIn CCSM cell culture, 96.5%and 96% of the cells were positive for αSMA and smoothelin, respectively. PDGFBB at different concentrations markedly promoted the proliferation of CCSM cells; the optimum PDGFBB concentration for enhancing cell proliferation was 12.5 ng/mL, which induced the migration of CCSM cells and significantly reduced the mRNA expressions of myocardin, αSMA and SMMHC (P<0.01). Exposure to PDGFBB decreased the protein expression of myocardin as the exposure time extended (within 48 h).

CONCLUSIONCCSM cells of a high purity can be obtained by the modified tissue culture method. PDGFBB can promote the proliferation and migration of CCSM cells and cause a phenotypic conversion from the contractile to the synthetic type possibly by down-regulating myocardin.

Actins ; metabolism ; Animals ; Cell Movement ; drug effects ; Cell Proliferation ; drug effects ; Cells, Cultured ; Down-Regulation ; Male ; Myocytes, Smooth Muscle ; cytology ; drug effects ; Myosin Heavy Chains ; metabolism ; Nuclear Proteins ; metabolism ; Penis ; cytology ; Phenotype ; Proto-Oncogene Proteins c-sis ; pharmacology ; RNA, Messenger ; Rats ; Rats, Wistar ; Trans-Activators ; metabolism

Objective To study the mechanical characteristics of lumbar vertebral manipulation by lifting-rotating and oblique-pulling using multi-film pressure measurement system. Methods Twenty-one male operators were divided into groups of experts, skilled operators and beginners. Everyone completed 7 actions of Lin’s lumbar manipulation continuously, and repeated 3 times. The graphs and data were collected and processed. Results The time-force curve by the experts had regularity. The average pre-load force was (147.25±26.04) N, duration was (0.98±0.20) s, the average minimum force was (79.22±9.50) N, the maximum impact force was (706.26±56.21) N, the flip time was (0.44±0.09) s, and flip speed was (1 666.33±411.91) N/s, the impulse was (310.95±56.67) N·s. The curve graphs and the index by the skilled operators were similar to those by the experts, but the average maximum impact force was (464.51±53.49) N, which was relatively smaller. The curve graphs by the beginners could be broadly divided into three categories. Class Ⅰ was chaotic and unregulated; Class Ⅱ only had impact force and did not have pre-load force, and the maximum impact force varied in size; Class Ⅲ had both impact force and pre-load force, but the forces were relatively small and stable. Conclusions The multi-film pressure measurement system can preferably display the mechanical characteristics of manipulation by lifting-rotating and oblique-pulling, which is an ideal testing tool for quantitative research on mechanical parameters of Lin’s lumbar vertebral manipulation. The experimental results provide a scientific basis for visualization, quantification and standardization of the manipulation.

Objective:To observe the role of Huaiqihuang Granules (HQ) in the long-term management of bronchial asthma in young children, and the effective effect on concomitant rhinitis.Methods:A prospective real-world multicenter study was conducted in children aged 2-5 years with asthma diagnosed in the outpatient department (from April 2016 to March 2019)who received either inhaled corticosteroid (ICS)/leukotriene receptor antagonist (LTRA)(control group); inhaled ICS/LTRA plus HQ(combination group), or HQ alone(HQ group). All patients were followed up at week 4, 8, 12 after treatment. The number of days with asthma symptoms, the frequency of severe asthma attacks, the level of asthma control, and the days with rhinitis symptoms in the last 4 weeks were recorded. Differences before and after treatment, and those among groups after treatment were compared using Kruskal- Wallis H test or Wilcoxon rank-sum test. Results:A total of 2 234 eligible patients were recruited, and 2 147 cases completed followed-up visits, including 477, 1 374 and 296 cases in the control group, combination group, and HQ group, respectively. After the treatment, all 3 groups showed significant declines in the days with asthma symptoms, frequency of severe asthma attack and the days with rhinitis symptoms (all P<0.01), and the rate of well-controlled asthma increased significantly ( P<0.01). It lasted until the end of follow-up. Among groups, patients in the combination group showed significantly less days of asthma symptoms than those of the other 2 group at week 8 and 12[0(0, 0.9) d vs.0(0, 0.3) d, P<0.05; 0(0, 0.1) d vs. 0(0, 1.0) d, P<0.01]. Patients in the combination group and HQ group showed a significantly lower rate of severe asthma attacks than that of the control group at week 12 [0(0, 1), 0(0, 1), 0(0, 2), all P<0.05]. The well-controlled rate of asthma in the combination group was significantly higher than that of the control group and HQ group at week 8 and 12 (89.6% vs. 85.9% vs.82.1%, H=15.28; 90.9% vs. 84.1% vs. 81.8%, χ2=29.32, all P<0.01). Conclusions:HQ can significantly alleviate symptoms of asthma and rhinitis, severe attack of asthma, and increase the control rate of asthma when used as an additional treatment or used alone.