Objective:To study the effect of a three-in-one counseling model on mental health of medical students Method: A three-in-one counseling model composed of mental health education, group counseling and individual counseling was applied to 150 freshmen of a medical school (study group) Other 150 freshmen were collected as control The intervention lasted for 1 year The effect was assessed with EPQ, SCL-90, GWB (gross well being), SCCS (self-consistency and congruence scale), SAD (social avoidance and distress scale) and LESU (life events scale of undergraduates) at the baseline, in the middle and at the end of the study Result: After intervention, the study group had lower score in psychoticism of EPQ (46 3?7 5) than control group (50 7?11 9), and higher score in flexibility (48 9?5 6) than control (46 8?5 9) The total score and many subscores of SCL-90 decreased in study group While the scores of social avoidance and distress increased in control group Conclusion: The three-in-one counseling model has effect on balancing personality, reducing psychosomatic symptoms, facilitating self consistency and improving social interaction of medical students

Objective: Breast conserving surgery has been proved to be a safe strategy and widely applied to the treatment of early breast cancer.The aim of this work is to evaluate the operational techniques and effect of conservative surgery for breast cancer.Methods: We analyzed the clinical data of 20 patients with breast cancer that underwent conservative surgery from January 2004 to December 2007.All the tumors were found to be solitary,less than 3 cm in diameter,and treated by postoperative chemotherapy and radiotherapy.All the patients were followed for 5 to 52(mean 28) months.Results: During the follow-up,2 cases experienced local recurrence and received modified radical mastectomy.All the 20 patients remained alive up to the present study.Conclusion: The principle of specific procedures for specific cases counts quite a lot for satisfactory prognosis and outcomes of breast conservative surgery.

Objective To investigate the influence of low bilirubin level on hepatic stellate cells (HSCs) in vitro. Methods HSCs were isolated and cultured from the liver of SD rats. The effect of bilirubin in different concentration on reactive oxygen in HSCs was determined by DCFH-DA kit. The proliferation of HSCs was tested by CCK-8 test kit.Smoothmuscle α-actin (α-SMA) expression of HSCs was tested by Western blot.The apoptosis of HSCs was tested by flow cytometry.The fibrosis-related genes were tested by PCR. Results HSCs were isolated and cultured successfully.Bilirubin in low concentration (0,1,10,20 mg/L) inhibited the generation of the reactive oxygen.Proliferation and α-SMA expression of HSCs was inhibited by bilirubin (0.624 ± 0.092,0.536 ± 0.127,0.407 ± 0.033,0.399 ± 0.022,F =13.454,P ＜0.05 ; 339 ± 2,336 ± 10,246 ± 7,242 ± 5,3.7 ± 0.3,F =191.107,P ＜ 0.05 ) and the apoptosis of HSCs was promoted by bilirubin(2.69 ±0.07％,2.95 ±0.10％,4.41 ±0.22％,4.91 ±0.86％,F =34.731,P ＜0.05 ).Bilirubin in low concentration changed the expression of fibrosis-related genes in HSCs.The ratio of TIMP-1mRNA/MMP-2mRNA decreased (54 ± 2,65 ± 2,47 ± 2,44 ± 2,F =73.400,P ＜ 0.05).Conclusions Bilirubin in low concentration inhibits the proliferation and activation of hepatic stellate cells,orobablv bv a mechanism in which bilirubin promoted antioxidative function.

Purpose　To investigate the role of urokinase plasminogen activator (uPA),uPA receptor (uPAR),tissue type plasminogen activator (tPA) and plasminogen activator inhibitor 1 (PAI-1) in the invasiveness of human breast cancer cells.　Methods　Three human breast cancer cell lines with different invasive ability were taken as research targets.RT-PCR and milk plates methods were used to detect the expression of uPA system members and the PA activities,respectively.Modified Boyden's chamber model was employed to detect the invasive ability of cancer cell.　Results　MDA-MB-231 could express high level of uPA,uPAR,PAI-1 and low level of tPA.MDA-MB-435 could express lower level of uPA and hight level of tPA,but no PAI-1 and uPAR were detected.MCF-7 could express lower level of uPAR and high level of PAI-1,but no uPA and tPA were detected.MDA-MB-231 cells showed the highest total PA and uPA activity.MDA-MB-435 cells also showed high total PA activity,but almost all the activity owed to tPA.MCF-7 showed almost no PA activity.Correlated with their PA activities,MDA-MB-231 was found the most invasive in vitro,followed by MDA-MB-435,and MCF-7 almost had no invasive ability.The antibodies against uPA and uPAR were significantly effective in reducing the matrigel invasiveness of MDA-MB-231 by approximately 83.1% and 43.9% respectively (P<0.05).　Conclusions　Co-expression of uPA,uPAR and PAI-1 in human breast cancer highly correlates with the invasiveness in vitro.

Objective To analyse the etiology,clinical features and prognosis of drug-induced liver disease(DILD),in order to draw more attention to this problem.Methods 332 cases of DILD admitted to the First Affliated Hospital of Zhejiang Universitv from 2000-2006 were retrospectively analysed.Results A variety of drugs.including herbal medicines(27.1% of our total cases),anti-tuberculosis drugs (13.3%)and immunosuppressive drugs(10.8%)caused drug-induced liver damage.The hepatocellular type(43.1%)was the most common type seen clinically and the mixed type(32.5%)and eholestatic type (24.4%)were somewhat less.Conclusions A variety of medicines may cause DILD;herbal medicines,anti-tuberculosis drugs and immunosuppressive drugs were frequently found to be responsible, the hepatocellular type was the most common.while the mixed type and cholestatic type were somewhat less.Serum albumin,total bile acids,direct bilirubin and blood prothrombin time are important predictors of the prognosis of DILD.

Objective To compare and analyze gene expression patterns in rat model of nonalcoholic fatty liver disease (NAFLD).Methods Twelve male Sprague-Dawley rats were randomly given either general diet (control group) or a high-fat diet (model group) for 4 weeks.The histopathologic changes of the liver were observed and gene expression patterns were analyzed and compared by cDNA mieroarray.Results Hepatocellular steatosis and inflammatory infiltration were observed in model group after high-fat diet for 4 weeks.Fifty-one differential genes were found in model group,20 of which were up-regulated (sterol regulatory element binding factor 1,stearoyl-coenzyme A desaturase 1 and Bcl 2 modifying factor)and 31 were down-regulated (peroxisomal enoyl coenzyme A hydratase 1,heat shock 70 protein 1A and ATPase inhibitory factor 1). The up-regulating genes were involved in lipogenesis and cell apoptosis,while down-regulated genes were involved in fatty acid oxidation, protein modification and energy metabolism.Conclusions The differential expression of genes may involve in the pathogenesis of NAFLD.

Objective To compare the consistency of 2 methods,RUCAM and CDS,for assessment of drug-induced liver injury and their sensitivity and specificity.Methods A total of 332 patients with drug-induced liver disease,who admitted to the first hospital of Zhejiang university from January 2000 to December 2006,were retrospectively evaluated.The data were collected from patients including clinical presentation,liver function,etc.The liver function and the outcome of the patients after treatment were also observed.The probability of the diagnosis was classified as definitive,probable,possible,unlikely,or excluded.The consistency,the specificity and sensitivity of two methos were evaluated with Spearman correlation analysis.Results Absolute agreement between the 2 scales was observed in 91 cases(27.41%),with disagreement of 1 level in 219 cases(65.96%),and of 2 levels in 22 cases(6.63%),which showed a positive correlateion(r=0.485,P=0.001).Absolute agreement between the 2 scales was observed in 12 cases of severe drug-induced liver disease(18.46%)(r=0.578,P=0.001)and in 79 cases of minor drug-induced liver disease(29.59%)(r=0.382,P=0.001).The specificity of CDS was 100%,and the sensitivity was 57%and 25%in diagnosis of severe and minor drug-induced liver disease,respectively.Conclusions The best correlation between the 2 scales was obtained for drug-induced liver injury.The RUCAM scale showed better sensitivity,especially in diagnosis of server drug-induced liver disease.

A design scheme of a tele-screening system for diabetic retinopathy (DR) has been proposed, especially the communication subsystem. The scheme uses serial communication module consisting of ARM 7 microcontroller and relays to connect remote computer and fundus camera, and also uses C++ programming language based on MFC to design the communication software consisting of therapy and diagnostic information module, video/audio surveillance module and fundus camera control module. The scheme possesses universal property in some remote medical treatment systems which are similar to the system.
Computers ; Diabetic Retinopathy ; diagnosis ; Humans ; Programming Languages ; Telemedicine ; instrumentation

Objective To comprehensively grasp the grassroots medical institutions blood transfusion(blood) management present situation,put forward improvement strategy for the universality of existence weak link,the stand-ardized management of clinical blood transfusion to strengthen grass -roots medical institutions to provide necessary theoretical support.Methods 62 grassroots medical institutions blood transfusion(blood)in Yantai district were selected as the research subjects,to set the planning,layout,basic construction standards,related technology and equipment application aspects of quantitative evaluation,preliminary conclusions.Results By examination of 62 grassroots medical institutions transfusion quality management level both in terms of hardware and software facilities, emergency plan formulation,system file support informatization construction,staff education training,etc,found many problems,there was a certain gap between the existing department of blood transfusion standards.Conclusion The current grassroots medical institutions transfusion management is conditioned by the objective conditions,there are many problems,such as not improved,will cause a certain hidden trouble on the safety of clinical blood transfusion. Therefore,should combine their own reality,strengthen the quality of blood transfusion management system construc-tion,and give full play to the supervision and management of the hospital transfusion quality management committee. At the same time,the local administrative department of health also should formulate corresponding policies,ensure transfusion management level significantly increased.

BACKGROUND:Studies have shown that placement, needling point, angle and length of pedicle screws for thoracic vertebral fractures have been unified. Many studies concerned axial pul-out force and biomechanical behavior of a single screw, but few reports addressed the biomechanical behavior after the replacement with three kinds of screw connecting to rods. OBJECTIVE:To further observe and compare biomechanical behavior after three kinds of thoracic screw placement connecting rod using biomechanical testing, to understand the strength of thoracic pedicle screw replacement connecting rods, and the effects of its puling out on the stress of the bone surrounding the placement site. METHODS:The fresh frozen specimens of thoracic vertebra were divided into three groups at random: the pedicle fixation group, the transverse process-vertebral body fixation group, and modified rib transverse process fixation group. Thoracic pedicle screw system was inserted by the standard placement method in each group. The experiment was measured on the mechanical equipment. During puling out, the strength that bone bore was described with dynamic curve, folowed by statistical analysis. The difference in the gripping force on the thoracic vertebra among three kinds of screw placement method was compared. RESULTS AND CONCLUSION: Among three kinds of screw placement methods and among three kinds of screw placement methods on the injured vertebral body, the gripping force was significantly bigger in the pedicle fixation group than in the transverse process-vertebral body fixation group and modified rib transverse process fixation group (P < 0.01). No significant difference in the gripping force was detected between the transverse process-vertebral body fixation group and modified rib transverse process fixation group. Results verified that the stability of loading ability was apparently better in the pedicle fixation group compared with the transverse process-vertebral body fixation group and modified rib transverse process fixation group.