Preeminent Doctors Education and Training Plan has put forward an urgent request to reform the five-year clinical undergraduate medical talent training mode and strengthen the professional spirit cultivation for medical students. As a pilot project, our college continuously explored the professional spirit cultivation mode for medical students in preeminent physician class and has almost established the three-dimensional mode of whole process, joint participation, multi approach and stressing practice.

Objective To investigate the efficacy of preemptive analgesia with parecoxib sodium combined with local infiltration anesthesia with ropivacaine for postoperative pain after laparoscopic cholecystectomy.Methods One hundred and fifty ASA Ⅰ or Ⅱ patients,aged 41-63 yr,weighing 55-87 kg,scheduled for laparoscopic cholecystectomy under the general anesthesia,were randomly divided into 3 groups (n=50 each): parecoxib sodium+0.9％ normal saline (group A),parecoxib sodium + 0.5％ ropivacaine (group B) and parecoxib sodium + 0.75 ％ ropivacaine (group C).Parecoxib sodium 40 mg was injected intravenously 30 min before induction of anesthesia.Anesthesia was induced and maintained with remifentanil and propofol given by TCI.Immediately before skin closure,0.9％ normal saline 12 ml was given in group A,and 0.5％ and 0.75％ ropivacaine 12 ml were injected for local infiltration anesthesia in groups B and C,respectively.VAS scores were maintained ≤ 3after operation.When VAS scores ＞ 3,pethidine 75 mg was injected intramuscularly.Ramsay sedation scores were recorded at the end of operation and 2,4,8,12 and 24 h after operation.The side effects (nausea and vomiting,allergy,respiratory depression,etc.),requirement for pethidine,algesic sites (incisional pain,upper abdominal pain,referred pain in right shoulder),and condition of the wound healing were all recorded within 24 h after opcration.Results Compared with group A,Ramsay sedation scores,the incidence of nausea and vomiting,the requirement for pethidine and total amount of pethidine,and the incidence of incisional pain were significantly decreased in groups B and C (P ＜ 0.05 or 0.01).Compared with group B,the requirement for pethidine and total amount of pethidine,and the incidence of incisional pain were significantly decreased in group C (P ＜ 0.05 or 0.01).There was no significant difference in Ramsay sedation scores between groups B and C (P ＞ 0.05).There was no significant difference in the condition of the wound healing,upper abdominal pain and referred pain in right shoulder between groups A,B and C (P ＞ 0.05).Conclusion For the patients scheduled for laparoscopic cholecystectomy,local infiltration anesthesia with ropivacaine can improve the efficacy of preemptive analgesia with parecoxib sodium,and it provides better postoperative analgesia when 0.75 ％ ropivacaine is used.

Objective To study the vascular endothelial growth factor(VEGF) expression and secretion of mesenchymal stem cells(MSCs) of rabbit transfected with pcDNA3-VEGF165 expression plasmid in order to construct a kind of tissue engineering artificial skull with more blood supply.Methods By gene reconstruction method,the VEGF165 gene was cloned into eukaryotic expression plasmid pcDNA3 and recombined eukaryotic expression plasmid pcDNA3-VEGF165 was constructed;By lipofectamine transfection method,pcDNA3-VEGF165 expression plasmid was transfected into MSCs of rabbit;By RT-PCR and Western blotting methods,the VEGF mRNA expression and VEGF protein secretion in the MSCs were detected.Results Recombined eukaryotic expression plasmid pcDNA3-VEGF165 was confirmed to be true by double enzyme digestion,two strips came to appear in 5400 bp and 600 bp of gelose electrophoresis and their sizes accorded with pcDNA3 plasmid and VEGF165 accordingly;Primarily cultured and subcultured MSCs of rabbit were successfully performed and the MSCs storehouse of rabbit was established,primary MSCs presented lymphoid form at first and then the morphology of them became circulara,polygonal or irregular forms,they were more and more like fibroblastic cells after subcultured cultivation.The expressions of VEGF mRNA and VEGF protein in the MSCs were found after transiently transfection by RT-PCR and Western blotting methods.Conclusion Recombined eukaryotic expression plasmid pcDNA3VEGF165 can be transfected into MSCs of rabbit effectively by lipofectamine and the VEGF expression can be detected in the MSCs after transfection.

Objective To investigate the biological properties of human amniotic mesenchymal stem cells (hAMSCs) which were preconditioned with phosphodiesterase-5 inhibitor (Vardenfil). Methods hAMSCs were in vitro isolated and cultured, hAMSCs were pre-treated with vardenfil in final concentration of 10 μmol/L. The morphology of Vard-hAMSCs was observed, and the immunological characteristics, proliferative capacity, and ability of anti-oxidative damage of hAMSCs and Vard-hAMSCs were analyzed by flow cytometry. Double labeling immunofluorescent staining was used to count the differences of differential potential between neural cells of hAMSCs and Vard-hAMSCs. Results (1)Flow cytometry revealed that both hAMSCs and Vard-hAMSCs positively expressed CD90、CD105 and CD73, and negatively expressed CD34、CD45、CD11b and HLA-DR. The SPF and PI in Vard-hAMSCs group were (0.57 ± 0.40)% and (2.20 ± 1.60)% respectively, there was no statistical significance compared with hAMSCs group; (2)After 4 hours treated by H2O2, the apoptosis rate in Vard-hAMSCs group were (7.67 ± 0.82)%,which were markedly lower than that in the hAMSCs group and specific blocker group; (3)Under the same induction condition, positive rates of MAP-2 and GFAP in Vard-hAMSCs group were (49.8 ± 6.42)%and (55.2 ± 6.10)% respectively detected by double labeling immunofluorescent staining, which were significantly higher than the control group. Conclusion The strategy that hAMSCs are treated with vandenfil can enrich the ability of anti-oxidative damage and the differential potential for neural cells in a certain time, and the morphology, immunological characteristics, proliferative capacity of Vard-hAMSCs have no significant change. It suggests that pre-treatment with vandenfil may provide a optimized experimental strategey for hAMSCs which were used to treat nervous system disease.

0.05).Conclusion The increasing of IL-15 in peripheral blood after MP infection may play a role in bronchitic asthma pathogenesis.

Objective:To retrospectively analyze the routine clinical laboratory parameters for hepatocellular carcinoma,in an attempt to search for parameters for diagnosis of hepatocellular carcinoma(HCC).Methods:The pre-operation clinical labo- ratory data,such as tumor makers,and serological biochemical indices,hepatitis B virus(HBV)infection markers,and HBV DNA titers,were collected from 828 patients who were pathologically diagnosed as having HCC;then the correlation between these data with tumor size and the pathological grades of HCC was analyzed.Results:It was found that 97.9% of the 828 pa- tients were infected with HBV and 70.9% of them were accompanied by liver fibrosis.We also found that the tumor size was correlated with albumin(ALB),globulin(GLB),A/G,aspartate aminotransferase(AST),ratio of aspartate to alanine amin- otransferase(AST/ALT),gamma-glutamyl transferase(GGT),alkaline phosphatase(ALP),alpha-L-fucosidase(AFU),al- pha-fetoprotein(AFP)and tumor grades;meanwhile,the pathological grades of tumor was correlated to prealbumin(PALB), GGT and tumor size(all P

Adult ; Benzene ; Biomarkers, Tumor ; blood ; Female ; Humans ; Male ; Middle Aged ; Occupational Exposure ; Serum ; chemistry

Objective To compare four pretreatment methods of human plasma coagulation factor Ⅷ( FⅧ) before column purification.Methods Cryoprecipitate was dissolved in Tris , before the supernatant was treated with glycine precipitation, PEG precipitation, acid precipitation and aluminum hydroxide gel adsorption , respectively.Activated partial thromboplastin (APTT) was used to measure the activity of the supernatant clotting FⅧ after treatment.The total activity recovery and specific activity of the final samples were used to weigh the efficacy of those methods .The purity of the intend-ed protein was estimated by non-reducing SDS-PAGE electrophoresis .Results Total activity recovery of glycine precipitati-on was the highest (94.00%±7.60%), followed by that of acidic precipitation (89.47%±2.60%) and PEG precipita-tion (80.92%±9.67%) methods.The lowest was aluminum hydroxide gel adsorption (78.65%±7.52%).Glycine precipitation and PEG precipitation could more effectively remove contaminating protein than acid precipitation and aluminum hydroxide gel adsorption .Treated by four different methods , the specific activity of FⅧ of glycine precipitation sample was the highest (0.6856 ±0.1258 IU/mg), followed by PEG precipitation (0.5773 ±0.0787 IU/mg) and acidic precipitation (0.3885 ±0.0301 IU/mg).The specific activity of aluminum hydroxide gel adsorption was the lowest (0.2879 ±0.0472 IU/mg).Conclusion PEG precipitation is more effective for the actual production process than the other three methods .

Objective:The study is to compare the prevalence and related factors of suicidal ideation in ado-lescents between China and Philippine.Methods:Our research data was downloaded from the website of world health organization (WHO).It was the data of China and Philippine from the Global school-based student health survey(GSHS)which was launched by the WHO,and 9173 students in China and 7338 students in Philippine aged 11 -16 years were involved.The situations of being serious injury,being bullied,sense of loneliness,insomnia, sense of hopelessness,friends,smoking,alcohol consumption,drug abuse and exercise were assessed by the ques-tionnaire.The definition of suicidal ideation was that ever thinking of suicide seriously in the last 12 months.Results:The rate of having suicidal ideation in China and Philippine were 17.4% (1544 /8881 )and 19.3% (1371 /7089),respectively.Multivariate analysis showed that female (OR =1.45),grade two and three of middle school (OR =1.29,1.43),being serious injury (OR =1.35),being bullied (OR =1.87),sense of loneliness (OR =1.47),insomnia (OR =1.55),sense of hopelessness (OR =3.36),alcohol consumption (OR =1.45)and drug abuse (OR =1.55)were the risk factors to suicidal ideation in China adolescents,and having good friends (OR=0.66)and exercise regularly (OR =0.78)were the protective factors.However,the female,grade,sense of lone-liness,insomnia and drug abuse were not the risk factors to suicidal ideation in Philippine adolescents,and other fac-tors were similar to China sample.Conclusion:There may be differences in the prevalence rate of suicidal ideation between adolescents in China and Philippine,with lower rate in China.Meanwhile,there are similarities in the relat-ed factors on the adolescent suicidal ideation of the two countries,with more risk factors in China sample.Therefore,the individualized targeted measures should be taken to prevent suicide in China and Philippine respectively.

Objective To observe the clinical efficacy of micro plasma in the treatment of acne atrophic scar on face.Methods 82 cases with facial acne atrophic scar were randomly divided into the observation group and the control group.Each group had 41 cases.The observation group received micro plasma treatment while the control group were treated with ultrapulsed fractional CO2.The treatment was carried out 6 weeks interval, in total 3 times.After each treatment, the curative effect and the side effects were compared between the two groups.Results The total effective rates had no statistical difference between two groups, and the more treatment times, the better effect.The observation group had less adverse effects, which the duration of main side effects was shorter in the observation group than in the control group, with statistically significant difference.Conclusion The micro plasma technology on treating facial acne atrophic scar was an effective skill with less adverse reactions and worth of wide use.