BACKGROUND: We have paid more attention on the effects of growth factors on tendon healing and adhesion formation, especially on the correlation of transforming growth factor with tissue adhesion and scar formation. OBJECTIVE: To investigate the expression of transforming growth factor beta-1 mRNA in the zone Ⅱ flexor tendon of wound-healing rabbit models. DESIGN: Randomized controlled animal study. SETTING: Department of Orthopaedics, Affiliated Hospital of Medical College, Qingdao University. MATERIALS: Sixty clean adult New Zealand white rabbits weighting 4.0-4.5 kg, of either sex, were provided by Qingdao Animal Experimental Center. Left forelimbs of each animal were as experimental side, and right forelimbs of each animal were as control. There were 6 time points, namely at days 1, 7, 14, 21, 28 and 56, 10 rabbits in each time point. Of the 10 rabbits, 6 rabbits received the in situ hybridization and 4 rabbits received the immunohistochemical staining. Animal intervention met the animal ethical standard. METHODS: Experiments were performed at the Animal Experimental Center of Hospital Affiliated to Medical College of Qingdao University from September 2005 to July 2006. After anesthesia, each rabbit underwent complete transection of the profundus middle flexor tendon in zone Ⅱ, and then the tendon was repaired by the Kessler method. Rabbits in the control group did not receive any intervention. Rabbits were anesthetized and killed 1, 7, 14, 21, 28 and 56 days after the surgery. Skin was incised along the original incision at the experimental sides to obtain tendons and tendon sheaths. The same measurements were performed in the control group. MAIN OUTCOME MEASURES: Tenocytes and tendon sheath cells were detected with the in situ hybridization and the immunohistochemical staining to observe the expression of transforming growth factor beta-1. RESULTS: Sixty rabbits were involved in the result analysis. ①The in situ hybridization results: Expression of transforming growth factor beta-1 mRNA was increased at day 1 after tendon injury in the experimental group, reached a peak at days 14-21 after tendon injury, reduced at day 28 and was still in a high level at day 56. Expression of transforming growth factor beta-1 mRNA was high in tendon sheath cells around the repaired region. At the same time point, the expression of transforming growth factor beta-1 mRNA was higher in tendon sheath cells than in tenocytes. Low expression of transforming growth factor beta-1 mRNA was found in tenocytes and tendon sheath cells in the control group. The expression of transforming growth factor beta-1 mRNA in tenocytes and tendon sheath cells was higher in the experimental group than in the control group at each time point (P ＜ 0.05). ②Immunohistochemical staining results: Expression of transforming growth factor beta-1 protein was elevated at day 1 after the surgery, reached the peak at days 14-21 and was still in a high level at day 56 in the experimental group. Low expression of transforming growth factor beta-1 protein was seen in the control group. CONCLUSION: The normal uninjured tenocytes and tendon sheath cells produce transforming growth factor beta-1. The cytokine is activated in the injured tendon. The increase of this cytokine in both tenocytes and tendon sheath fibroblasts are coincidence with both extrinsic and intrinsic mechanisms for tendon repair.

[Objective]To evaluate the effect of bone cement oscillator on increasing bone cement-bone interface binding intensity.[Method]Sixty fresh femoral bones of adult pig were randomly divided into experiment group and control group under the 30%,50%,70% ultimate shear strengh of the cement/bone.There were 10 samples in each subgroup.Mechanics test was performed by MTS-810 material testing machine,and the binding intensity of bone cement-bone interface in oscillating cement-bone interface binding intensity in experiment group was compared with control group.[Result]Mechanics test showed bone cement group were significantly stronger than control group under the 30%,50% ultimate shear strengh of the cement-bone(P 0.05).[Conclusion]Bone cement oscillator can increase binding intensity of bone-cement interface,and effectively reduce long-term aseptic loosening of artificial prostheses.

Objective: To explore the feasible methods for item selection of TCM syndrome scale.Methods:Elderly hypertension with syndrome of kidney qi deficiency was selected as example.The symptoms and signs of elderly hypertension patients were statistically analyzed with clinical epidemiological investigation on the basis of discussion among focus group and expert consultation.Six selection methods were used,such as correlation coefficient method,dispersion tendency method,factor analysis method,etc.Results:18 Items were selected in the end and constituted the preliminary scale of kidney qi deficiency of elderly hypertension.Conclusion:Only if combine subjective and objective selection methods,use kinds of proper statistical methods and master the scale of preserving items,can we acquire good reliability and validity of scale.

In recent years, the incidence of pancreatic cancer shows rising trend and higher mortality. Pancreatic cancer lacks early diagnostic methods with high sensitivity and specificity, and the surgical resection rate is 10 %-20 % with high operation mortality, poor long-term curative effect and less than 5 %survival rate within 5 years. At present, researchers indicate that radiotherapy can improve the quality of life, increase tumor local control rate and prolong the overall survival time of patients with pancreatic cancer in different levels. Diffusion weighted imaging (DWI), as a functional imaging technology of magnetic resonance imaging (MRI), is the only way to react cell levels. This paper will summarize the application of DWI in radiotherapy of pancreatic cancer.

Zoonoses are a class of infectious diseases that are transmitted from animals to humans. More than 200 known types of zoonoses have been reported across the world until now. Among 1 400 pathogens of human infectious diseases, approximately 61% are zoonotic origin, and 75% human emerging infectious diseases are zoonoses. These zoonoses pose a great threat to human and animal health and decrease livestock production. To effectively tackle the persistent challenges resulting from zoonoses, WHO collaborates with member governments, academia, non-governmental and charitable organizations, and regional and international partners to prevent and manage zoonotic threats and their public health, social and economic impacts. Although great success has been achieved in the management of zoonoses, there are still multiple challenges for zoonoses control in China due to environmental, climate, socioeconomic factors and antimicrobial resistance. Based on the One Health concept, the integration of modern biological, information, artificial intelligent and big data tools through multidisciplinary and multi-sectorial collaborations may facilitate the containment and elimination of zoonoses.

Aim To investigate the cytotoxic effect and mechanism of ampelopsin sodium ( AMP-Na ) on hu-man lung adenocarcinoma cell line GLC-82 alone or combined with carboplatin ( CBP ) . Methods The cytotoxic effect of human lung adenocarcinoma cell line GLC-82 was investigated by 3-(4,5-dimethylthiazol-2-yl)-2, 5-diphenyltetrazolium bromide ( MTT ) colori-metric assay. Ultrastructure change of apoptotic GLC-82 cells was observed with transmission electron micro-scope. The changes of the cell apoptosis and the ex-pression of caspase-3 were analyzed with flow cytome-ter. Results Combined with AMP-Na, the IC50 of CBP decreased from (17. 10 ± 4. 78) mg·L-1 to <3. 12 mg·L-1(P<0. 01), showed that the combina-tion of AMP-Na and CBP had synergistic effect on GLC-82 cells ( CDI <1 ) . As with transmission elec-
tron microscope and flow cytometric analysis, the apop-tosis and necrosis ratios also increased in the combina-tion group. The necrosis ratios increased from (2. 56 ± 0. 41 )% to ( 71. 83 ± 5. 43 )% ( P<0. 01 ) . The ex-pression of caspase-3 was increased significantly after treated with AMP-Na or combined with CBP. Conclu-sions There is a synergistic cytotoxic effect on GLC-82 cells treated with AMP-Na combined with CBP. Ap-optotic cells and necrotic cells are found in GLC-82 cells treated with AMP-Na alone or combined with CBP. One of the mechanisms to induce apoptosis is probably that activation of caspase-3 mediates signal transduction pathway in cells.

OBJECTIVE:To explore the new method for clinical pharmacists training,and provide reference for improving the quality of clinical pharmacists training. METHODS:Based on the full-awareness of Definition and characteristics of stage-progres-sive learning(SPL)and problem-based learning(PBL)teaching method,SPL-PBL teaching method was used in the teaching of the-oretical and clinical practice in the process of students training in clinical pharmacist training base. The teaching course of theoreti-cal knowledge was mainly SPL in first half and PBL in another half. While in the clinical practice teaching of ward rounds,check-ing doctor's advice,participation in the development of treatment programs and case discussion,PBL was mainly used interspersed by SPL;SPL was mainly in inquiry,pharmaceutical care and medication education interspersed by PBL. RESULTS:SPL-PBL teaching method had not only effectively aroused the enthusiasm of the students'learning,enhanced the sense of responsibility and improved their clinical professional knowledge and practice ability,but also strengthened the cultivation of students communication ability,document retrieval ability,writing communication ability and self-learning ability(four abilities) to make students more quickly into the role and improve their subjective initiative. CONCLUSIONS:Practice has proved that the SPL-PBL teaching meth-od not only gives consideratin to the inndividual differences among studengts,but also mobilizes the enthusiam,and not only gives consideration to the teaching about basic theoretical knowledge,but also strengthens the training for clinical thingkig andfour abili-ties,wich can be used for the clinical pharmacists training. Meanwhile,SPL has expanded the aplication surface of PBL beacuse that SPL has reduced the requirements of PBL for overall qulity. However,it needs to be improved because of the short time appli-cation.

Objective To investigate the effect of metabolic syndrome and its components on imaging of brain impairment in subcortical ischemic vascular disease.Methods 120 patients with subcortical ischemic vascular disease (SIVD) including 25 cases without metabolic syndrome,25 cases with the risk of metabolic syndrome,70 cases with metabolic syndrome.The diagnostic criteria of metabolic syndrome was the National Cholesterol Education Program Adult Treatment Panel Ⅲ (NCEP-ATP Ⅲ).Brain MRI was assessed by the Scheltens scale,and divided into 3 regions:periventricular hyper intensities (PVH),leukoaraiosis (LA),basal ganglia hyper-intensities (BG).Results The assessment scores of PVH,LA,BG and Scheltens scores were higher in patients with the risk of metabolic syndrome and patient with metabolic syndrome than in patient without metabolic syndrome [(3.75±1.60),(4.21±1.09) us.(2.76±1.62),(10.67±5.26),(13.79±5.25) us.(6.36±3.93),(3.21±2.62),(6.90±4.25) us.(1.52±1.50),(17.62±8.32),(24.90±9.25)vs.(10.58± 5.89),respectively,all P＜0.05].Waist circumference had positive correlations with LA and Scheltens scores (r=0.185,P=0.046; r=0.488,P＜0.001).Positive correlation was found between triglyceride (TG) and LA,BG scores (r=0.188,P=0.042; r=0.311,P =0.001).The positive correlations of impaired glucose tolerance (IGT) with LA,BG and Scheltens scores were found (r=0.235,P=0.011; r=0.229,P=0.013; r=0.206,P=0.027).High density lipoproteincholesterol (HDL-C) was correlated negatively with LA,BG and Scheltens scores (r=-0.238,P=0.010;r=-0.189,P=0.042; r=-0.335,P＜0.001).The further multivariate linear regression analysis showed that IGT,HDL-C had significant correlations with LA assessment score (both P＜0.05),TG had significant correlation with BG assessment score (P＜0.05),and waist circumfernce,IGT,HDL-C had significant correlations with Scheltens scores (all P＜ 0.05).Conclusions Metabolic syndrome and its components correlate with the imagings of cerebral damage in SIVD.Abdominal obesity,TG,IGT,HDL-C are the important risk factors for SIVD.

OBJECTIVE To establish a SNP detection method by DNA piezoelectric biosensor and detect a SNP relative to HBV infection. METHODS To establish a model experiment with synthesis DNA sequences as target and find the lowest sensitivity. After extraction of genome DNA from inpatient blood sample, the SNP sites located in ESR1 gene region in samples were detected by SNP detecting method established. RESULTS The frequency shift of target-A was 416.0?21.5Hz, the frequency shift of target-G was 9.4?5.0Hz. And it could be detected that the lowest sensitivity of target-A was 2?10-11 mol/L. The three genotypes of blood samples, TT, TC and CC, had different frequency shifts, 109.4?13.4Hz, 52.0?11.4Hz and 7.2?4.5Hz, respectively. CONCLUSIONS SNP in blood sample could be detected specifically and sensitively by DNA piezoelectric biosensor.

Objective:To scan the common differentially expressed genes in mice liver tissue following subacute exposure to hepatotoxicants,including alcohol,carbon tetrachloride,BCG & LPS,the alcohol extracts of Rhizoma Dioscoreae Bulbiferae and Senecio scandens Buch.-Ham.,and apply to the rapid toxic evaluation of TCM and other xenobiotics.Methods:The gene expression profiles of mice liver tissue,after respective administration of alcohol,CCl4,BCG associated with LPS,the alcohol extracts of Rhizoma Dioscoreae Bulbiferae and Senecio scandens Buch.-Ham.to healthy mice,were analyzed by use of mouse genome cDNA microarray.The correlations between the common differential expressed genes and the liver injury were analyzed based on the biological functions of those differentially expressed genes.Results:Among all of the five drug administration groups,there were 7 known function genes(BC05200,NM-019410,NM-173019,AB028272,AK088925,AK030862 and AK088816)and 1 unknown function gene(BC069871)differentially expressed.Beside AK088816,the other 7 genes were all down-regulate expressed.Conclusion:The common differentially expressed genes participate in the process of saccharometabolism,apoptosis,cell growth cycle,cytoskeleton and signal transmission,protein folding and protein ubiquitin.The abnormal expression of the common genes were closely correlated to the liver,and might be important for rapid hepatoxicity elucidation of traditional Chinese medicine and other xenobiotics.