Objective:To investigate the clinical application and adverse events of vinpocetine injection. Methods:The application of vinpocetine injection in the patients in neurology department during December 2013 and December 2014 in a hospital was statistically analyzed. The adverse reactions of the injection reported in the professional literatures and relevant documents were also retrieved and statistically analyzed. Results:The infusion concentration of vinpocetine injection for 363 patients was more than 0. 06 mg·ml -1 ,and 3 cases of adverse reactions appeared with the main symptoms of rash and drug fever. Among 28 published literatures,19 articles were with the infusion concentration of vinpocetine injection above 0. 06 mg·ml-1 and 8 articles reported adverse reactions in varying degrees. Conclusion:Clinicians should pay attention to the instructions in the clinical course of medication in order to improve the safe and rational use of drugs.

Objective To identify the effect of health risk behaviors on accidental injury of adoles-cents.Then analyze the strength and approach of the health risk behaviors. Methods Cluster sampling on various stages and strata methods was adopted. The adolescents from grade one to three in junior school students and grade one to three in senior high school students completed the questionaire. A total of 4408 students were surveyed and 4309 samples were valid. Path analysis was used to understand how factors could influence injury incidence. Results The incidence of adolescent injury was 15.53%. Statistical differences were found between genders (male 17.77%,female 13.36%,χ2=15.91, P<0.01),education levels (junior high school 17.36%,senior high school 13.99%,χ2=11.45, P<0.01) and cities ( Beijing 12.97%,Zhongs-han 17.95%,χ2=20.33, P<0.01) . Those who got injured were found with more health risk behaviors. Health risk behavior was the direct influencing factor to injury,as well as a possible risk factor to multiple injuries. Conclusion Health risk behaviors can strongly affect adolescent injury,and can be an indicator. Reducing health risk behaviors is important in adolescent injury prevention.

Objective To investigate the effect of propofol on the cerebral injury induced by ketamine in neonatal rats. Methods Eighty 7-day-old SD rats of both sexes, weighing 12-20 g, were randomly divided into 4 groups (n = 20 each): normal saline (NS) group, ketamine-induced cerebral injury group (group K), propofol group (group P) and propofol combined with ketamine group (group PK). Group NS received intraperitoneal NS 1 ml. In groups K, P and PK, ketamine 70 mg/kg, propofol 70 mg/kg and propofol 70 mg/kg + ketamine 70 mg/kg were injected intraperitoneally once every 2 h for 3 times respectively. Ten rats in each group were selected and sacrificed at 24 h after emergence from anesthesia and the hippocampi obtained to determine the neuronal apoptosis (by TUNEL) and Bcl-2 and Bax protein expression(by immunohitochemistry). The apoptosis rate was calculated.The other 10 rats in each group were selected at 21 days after the intraperitoneal injection and the learning and memory functions (escape latency and frequency of crossing the original platform) were evaluated using Morris water maze. Results Compared with group NS, the apoptosis rate was significantly increased in group K, Bcl-2 protein expression was up-regulated in groups P and PK, and Bax protein expression was up-regulated, the escape latency was significantly prolonged and the frequency of crossing the original platform was significantly decreased in the other groups (P ＜ 0.05 .or 0.01 ). Compared with group K, the apoptosis rate was significantly decreased in group PK, Bax protein expression was down-regulated in group P, and Bcl-2 protein expression was up-regulated,the escape latency was significantly shortened and the frequency of crossing the original platform was significantlyincreased in groups P and PK ( P ＜ 0.05). Conclusion Propofol can reduce the cerebral injury induced by ketamine in neonatal rats, and the regulation of the Bcl-2 and Bax protein expression and inhibition of the neuronal apoptosis in hippocampus may be involved in the mechanism.

Objective:To establish a method to determine the content of bacterial endotoxin in iodixanol. Methods:The standard curve of kinetic turbidimetric method was established and the dilution ratio was optimized by interference test. Bacterial endotoxin in the samples was determined. Results:The dilution ratio of 1 ∶12 did not interfere with the test. The recovery rate of bacterial endotox-in was 50%-200%. Conclusion:The kinetic turbidimetric method is suitable for the determination of bacterial endotoxin in iodixanol.

Objective To observe the effects of intensive lower extremity motor control training on the motor function of lower extremity, balance and walking capability of stroke patients. Methods 40 stroke patients were randomized into the intervention group (n=20) and control group (n=20). Both groups received the routine rehabilitation, while the intervention group accepted the lower extremity motor control training in addition for 6 weeks. Before and after 6 weeks of treatments, they were assessed with Fugl-Meyer Assessment of lower extremity (FMA-L), Berg Balance Scale (BBS), Holden Functional Ambulation Category (FAC); their gaits were analysesd with footprint. Results Both groups improved significantly in scores of FMA-L, BBS, FAC and average step length, stride width, walking velocity (P<0.01) after treatment, and improved more in the intervention group than in the control group (P<0.05). Conclusion Intensive motor control training of lower extremity may promote the recovery of motor function of lower extremities, balance and walking ability of stroke patients.

Objective To explore the influencing factors of job burnout among nurses in level 2 and level 3 hospitals in Guangdong province. Methods A total of 2 066 first line nurses from 133 medical, surgical and intensive care units (ICU) of 23 level 2 and level 3 hospitals in Guangdong province were surveyed employing the questionnaire Hospital Nursing Human Resources Research during December 2013 to August 2014. Results In the multivariate logistic regression models, each additional doctor per nurse was associated with 1.34 times increase in the likelihood of high level of emotional exhaustion(EE). Nurses had a 57.4%higher risk of high level of EE when they worked overtime. Every one point increase in ancillary service score, and every one more year working as a nurse was associated with 5.4%, 2.3%increase in the likelihood of high level of EE, respectively. Nurses were 42.1%,40.9%more likely to exhibit high level of depersonalization(DP) when they worked in medical units or hospitals of level 3, compared with nurses of surgical units and hospitals of level 2. Nurses had a 29.5%higher risk of high level of DP when they worked overtime. Nurses holding higher positions had a lower likelihood(37.7%) of high level of reduced personal accomplishment(PA) compared with nurses holding lower positions. Nurses in medical units or ICUs had a 31.2%, 51.6%higher risk of high level of PA than nurses in surgical units, respectively. Conclusions Job burnout of nurses is at a quite high level in level 2 and level 3 hospitals in Guangdong province. The probability of the occurrence of burnout is related to the hospital, unit and nurse characteristics and nursing workloads.

Objective To observe the prevalence of hyperuricemia(HUA)among obese children,and to ex-plore the association between uric acid(UA)levels and cardiometabolic risk factors,acanthosis nigricans and non - al-cohol fatty liver disease(NAFLD). Methods By using representative sampling method,1 753 obese children aged 6 -17 years old from 18 schools in 3 districts of Beijing(Xicheng,Haidian,Miyun)were selected to participate in the clini-cal examinations,including anthropometric measurements(height,weight)and blood pressure. Serum biochemical pa-rameters were assessed,including fasting plasma glucose(FPG),total cholesterol(TC),triglyceride(TG),high - densi-ty lipoprotein cholesterol(HDL - C),low - density lipoprotein cholesterol(LDL - C)and UA. Acanthosis nigricans and B - model ultrasonography of the liver were conducted. Results The prevalence of hypertension,impaired fasting glu-cose,dyslipidemia,acanthosis nigricans,and NAFLD among these 1 753 obese children was 33. 6%(589 cases), 66. 5%(1 156 cases),54. 3%(943 cases),23. 3%(408 cases),and 17. 0%(298 cases),respectively. The preva-lence of HUA was 40. 70%(714 / 1 753 cases),with 50. 17%(581 / 1 158 cases)in boys and 22. 34%(133 / 595 ca-ses)in girls. There was a significant increase in body mass index,systolic blood pressure,diastolic blood pressure, FPG,TG and LDL - C with the increase of UA,but there was a decrease in HLD - C with the increase of UA(all P ﹤0. 05). In boys,the adjusted odds ratios( OR)and 95% CI of the highest quartile of UA for hypertension,impaired fasting glucose,dyslipidemia,acanthosis nigricans,and NAFLD were 1. 16(0. 77 - 1. 74),1. 34(0. 90 - 1. 99),1. 29 (0. 89 - 1. 87),1. 89(1. 17 - 3. 04),and 1. 71(1. 03 - 2. 84),respectively;in girls,the adjusted OR and 95% CI of the highest quartile of UA for hypertension,impaired fas-ting glucose,dyslipidemia,acanthosis nigricans,and NAFLD was 0. 70(0. 40 - 1. 24),0. 60(0. 40 - 1. 00),1. 69(1. 04 - 2. 70),1. 67(0. 80 - 3. 49),and 1. 33(0. 48 - 3. 66),re-spectively. Conclusions The prevalence of HUA is relatively high in obese children and there is a strong association between UA and some car-diovascular metabolic disorders,acanthosis nigricans and NAFLD.

Objective To verify and assess diagnostic value of noninvasive diagnostic model of liver fibrosis in primary biliary cirrhosis (PBC) based on conventional laboratory markers.Methods Seventythree patients with PBC diagnosed by liver biopsy between January 2003 and June 2011 in Beijing Friendship Hospital,Capital Medical University were recruited in this study.Correlation analysis and logistic regression analysis between the conventional laboratory markers and histology stages were assessed.A liver fibrosis diagnostic model was established based upon aforementioned biomarkers and verified by its sensitivity and specificity for predicting the liver fibrosis.Results The predictive model ( H index) consisting of five conventional laboratory markers,i.e.,platelet count,serum cholinesterase,albumin,HDL-C and prothrombin time activity,could predict advanced fibrosis ( stages Ⅲ-Ⅳ ) with an AUCROC of 0.861.The sensitivity of predicting the absence of advanced fibrosis using H index ＜ - 2.20 was 96.6％ and the specificity of predicting the presence of advanced fibrosis using H index ＞ 0.41 was 93.2％.Conclusion The established noninvasive diagnostic model consisting of five laboratory markers could accurately distinguish pathological changes of early stage PBC ( stages Ⅰ - Ⅱ ) from advanced stage PBC ( stages Ⅲ-Ⅳ).

Objective: To explore the prevalence and characteristics of traditional bullying and cyberbullying behavior among primary and middle school students and to provide evidence for the comprehensive intervention. Methods: An anonymous self-administrated questionnaire survey was conducted among 12 417 students (grade 5 to 12) selected with multi-stage cluster random sampling in 16 districts in Beijing between Sept. and Oct. 2017. Descriptive statistics and chi square test were used for statistical analysis. Results: In the past 6 months, 2.6% of students were reported to be involved in traditional bullying,10.6% were reported of being bullied. 1.0% of students were reported to be involved in cyberbullying, and 2.8% reported of being bullied. Boys reported significantly higher rates of traditional bullying and cyberbullying behavior. The reporting rate of traditional bullying and cyberbullying gradually increased with grade. The reporting rate of traditional bullying was highest in junior high school, while cyberbullying was common in both junior and senior high school. Students with low academic performance were more likely to involve in bully as perpetrators in both types(P<0.05). The higher maternal education background was, the higher their children involved in bullying perpetrators(P=0.03). The proportion of students who reported bullied at school was higher than cyberbullying(χ2=15.25, P<0.01). Cyberbullying were more likely to take place outside school compared with traditional bullying(χ2=3.98, 9.76, P<0.05). Compared with traditional bullying, cyberbullying has a higher proportion of various types of bullying or being bullied. Conclusion Bullying is still prevalent among primary and middle school students in Beijing, and cyberbullying is becoming more widespread. Schools, family and the community-based comprehensive prevention strategies should be developed for a safe campus and network environment to prevent traditional and cyberbullying.

Objective: To explore the related factors and working way of adolescent injury,and to provide a basis for the effective prevention and intervention of adolescent injury. Methods: The framework of the questionnaire in this study was developed based on the Social Ecology Model. A cross-sectional survey was conducted on a valid sample of 4 309 students from 8 junior high schools and 8 senior high schools in Beijing and Zhongshan city respectively, using stratified random cluster sampling method. Students from grade 7 to grade 12 were invited to participate and investigated with injury prevalence. Results: The incidence of adolescent injury by person and by person-time was 15.53% and 22.49% respectively, and there were differences by sex, age and regions(χ2=15.92，11.45，20.33，P<0.05). The occurrence of adolescent injury was affected by adolescent psychological behavior and social environment through different underlying pathways. The intrapersonal factors and perception of environmental safety showed direct effects on the adolescents’ injuries (effect size was 0.29 and 0.05 respectively, P<0.05). Conclusion Adolescent injury is associated with diverse factors and pathways in a synergistic and complex manner, suggesting that a three-dimensional and diverse strategy should be taken to intervene the injures.