Objective To explore the effective prognostic factors of patients with multiple traumas. Method During January 2003 to March 2007, totally 324 patients with multiple traumas were treated in the emergency department of Renmin Hospital, Wuhan University. The relationship between prognosis and age, visiting time after injury, injury severity score (ISS) ,main wounded part and shock degree was analyzed. The data were tested using ehi-square test and logistic regression method. Results Seventy-eight patients died and 246 patients survived, the total mortality was 24.1%. Statistical differences existed in mortalities of patients with different visiting time (visiting hospital within 1 h,16.7%; visiting hospital beyond 1h, 37.4%),ISS (16≤ISS≤24, 5.7%; 25≤ISS≤40, 19.2%; IS8>40, 41.3%) and shock degree (non-shock, 11.8%; mild shock, 13.6%; moderate shock,27.7%; severe shock,46.9% ) ( P<0.01). There were no significant difference in mortalities among patients with different age (<18, 23.8% ; 18～38, 21.7% ; 38～58, 24.2% ;>58, 32.5% ) and with various main wounded part (head, 26.0%; neck, 25.3%; chest, 27.3%; abdomen, 24.1%; limbs, spine and pelvis,16.3%), P>0.05. Logistic regression study showed that mortality increased with postponed visiting time after injury, augment of ISS and aggravation of shock degree, with the exception that there was no differenoe in mortality of patients with between non-shock and mild shock. Conclusions Visiting time after injury, ISS and shock degree were valuable progrostic predictors for multiple traumas. It's vital to follow principle of damage controlled surgery and emphasis on the timeliness and integrity of medical rescue and control shock actively to reduce mortality of patients with multiple injuries.

AIM To explore effects of policosanol on depressing cholesterol in hyperlipidemia rats and the correlated biochemistry mechanism. METHODS The rats were randomly divided into normal control, policosanol 4 mg·kg~(-1) prevention, hyperlipidemia model, policosanol 4, 6 and 8 mg·kg~(-1) and lovastatin positive control groups. The later 5 group rats were fed with high-cholesterol diets for 4 weeks in order to make hyperlipidemia model and beginning from the 5th week, in addition to the normal control and model groups, other groups were ig given policosanol or lovastatin once a day for 6 weeks, respectively, and policosanol protection group rats were ig given with policosanol 4 mg·kg~(-1) once a day for 10 weeks, together with high-cholesterol diets everyday. Total cholesterol(TC), triglycerides (TG), low density lipoprotein cholesterol (LDL-C) and high density lipoprotein cholesterol (HDL-C) concentrations in the serum and fecal bile acid (FBA) in the exrement were determined by auto-biochemistry analyzer. The activity of 3-hydroxy-3-methyl-glutaryl coenzyme A (HMG-CoA) reductase in hepatocellular microsomes was detected by ultraviolet spectrophotometric analysis and activity of low density lipoprotein receptor (LDL-R) in peripheral blood lymphocyte was detected by fluorescence labelled integrator method. RESULTS Compared with hyperlipemia model group, the levels of TC decreased (39.1%-46.4%), LDL-C decreased (66.6%-80.7%), and FBA increased (9.7%-19.0%), the activity of HMG-CoA reductase decreased （13.8%-23.6%）, and activity of LDL-R increased (27.5%-129.6%) in policosanol prevention, policosanol 4, 6 and 8 mg·kg~(-1) and lovastatin groups, respectively; HDL-C increased （12.2%-16.7%） in policosanol prevention and policosanol 8 mg·kg~(-1) groups; TG decreased in lovastatin group. CONCLUSION Policosanol has significant effects on decreasing cholesterol. The decreasing cholesterol mechanism should include: ① increasing FBA excretion; ② decreasing the activity of HMG-CoA reductase; ③ increasing activity of LDL-R.

Objective To analyze the technology competition situation in vaccine industry of Jilin Province from the visual angle of patents. Methods The Dawei Patents Database-covered patents data of vaccine industry in Jilin Province were analyzed by patent mapping, patent metrical analysis and social network analysis respectively. Re-sults The vaccine industry in Jilin Province was in a growing stage with a good development situation and a solid strength in its research institutions. Conclusion Stress should be laid on city development-driven production, pro-duction-driven city development, and optimizing industry policies for the development of vaccine industry in Jilin Province. Scientific research institutions should strengthen their collaboration in professionals, technologies, funds and markets in order to make breakthroughs in technologies and realize the economic value of patents.

The paper analyzed the experiences of clinical subjects development at hospitals of Capital Medical University.On this basis,the authors raised such development suggestions as further improvement of the management systems,progressive affiliation mechanism,information platform,and better performance appraisal mechanism,for the purposes of empowering the standard and strength of clinical subjects of the hospitals.

0.05). Conclusion Fluoride contents of local wheat in some areas of Chongqing exceeded standard.

OBJECTIVE:To investigate the regulation effects of policosanol on lowering cholesterol and its enzymatic mechanism.METHODS:The rats were randomly assigned into control group,policosanol prevention group (4.0 mg?kg-1?d-1),policosanol low-dose,medium-dose and high-dose groups (4.0 mg?kg-1?d-1,6.0 mg?kg-1?d-1,8.0 mg?kg-1?d-1),lovastatin group (positive control) and hyperlipoidemia model group.The last five groups were induced hyperlipoidemia model for 4 weeks.Blood samples were collected after 6 weeks administration (i.g.).The levels of TC,TG,LDL-C and HDL-C in the serum were determined.Body weight and liver weight were measured and hepatic index was calculated.The activity of lecithin cholesterol acyl transferase (LCAT) in serum,hepatic lipoprotein lipase (LPL) and hepatic lipase (HL) were detected.RESULTS:Policosanol remarkably decreased the levels of TC (ranged from 39.1% to 43.3%) and LDL-C (ranged from 66.6% to 80.7%) in serum and hepatic index (ranged from 11.1% to 11.8%) (P

OBJECTIVETo investigate the incidence and risk factors for hypertension among taxi drivers working different shifts.

METHODSUsing the cluster sampling method, 415 day-shift and 304 night-shift taxi drivers in Jinan, China were selected and investigated. The influencing factors for hypertension were analyzed.

RESULTSThe incidence of hypertension in all taxi drivers was 33.2%. The incidence of hypertension in night-shift drivers was significantly higher than that in day-shift drivers (37.8% vs 29.9%, P<0.05). According to multivariate analysis, the incidence of hypertension in day-shift drivers was closely related to body mass index (BMI), working years, working hours, sleep duration, rest days, diet quality, water intake, and smoking, while the incidence of hypertension in night-shift drivers was closely related to BMI, working years, working hours, part-time job, sleep duration, rest days, and drinking.

CONCLUSIONBMI, working years, and working hours are the common risk factors for hypertension in day-shift and night-shift drivers. Sleep duration and rest days are the common protective factors. The risk factors for hypertension in taxi drivers vary with different shifts.

Automobile Driving ; Body Mass Index ; China ; epidemiology ; Humans ; Hypertension ; epidemiology ; Incidence ; Occupational Health ; Rest ; Risk Factors ; Time Factors ; Work Schedule Tolerance

Objective To discuss the protective effects and mechanisms of dexamethasone and Shenfu sepa-rate and joint administration of flap after ischemia-reperfusion injury. Methods 40-month-old fairly healthy rats were randomly divided into 4 group as A, B, C, D, and to product the abdominal island flap, then blocking the flow of blood of the pedicle artery respectively before 30 minutes when injecting with normal saline (1 ml/kg), dexametha-sone (1 ml/kg), Senate (10 ml/kg), joint injection with dexamethasone (1 ml/kg) and Shenfu (10 ml/kg). 4 groups of animals' blood samples were collected from the pedicle vein before the time of I hour when blocking vascu-lar pedicle and reperfusion after the time of 1 h, 6 h, 12 h, 24 h, respectively. Then the plasma concentration of TNF-α was measured. Results The concentration of TNF-α in the treatment group was significantly lower than the blank group(P <0.01). And the group D and the group B、C has significant differences either(P <0.01). Conclu-sion Using Dexamethasone, Shenfu injection in early can reduce the concentration of TNFα in repeffusion injury of flap and has a protective effect on the flap, but make better effect in combined.

Objective To study the effects ofShenqi YizhiGranules (SQYZ) on learning and memory and content of Aβ1-42 of cerebral tissue in 5XFAD mice with Alzheimer’s disease; To discuss its mechanism on improving learning and memory ability of 5XFAD mice.Methods Four-month-old C57BL?6 wild type mice were randomly divided into NS control group and SQYZ control group, and the 5XFAD mice were randomly divided into model group, SQYZ group and huperzine-A (HupA) group, 15 mice in each group. Each group were given same volume for gavage for 60 d. After treatment, the learning and memory ability were evaluated by nesting test, passive avoidance and Morris water maze test. The senile plaques and content of Aβ1-42, ionized calcium binding adapter molecule 1 and glial fibrillary acidic protein in cerebral cortex and hippocampus were detected by immunohistochemical staining and immunofluorescence, respectively.Results Compared with NS control group, the score of nesting test in model group significantly decreased; the step-through latency in passive avoidance was shortened and the escape latentcy in Morris water maze test was prolonged; the quantity of senile plaques and content of Aβ1-42 increased in cerebral cortex and hippocampus; the activation of glial cells significantly increased. In the SQYZ group, the above-mentioned indexes reached or approached the level of wild type control mice. The difference between SQYZ group and model group was statistically significant (P<0.05,P<0.01).Conclusion SQYZ improved learning and memory ability in 5XFAD mice, which may be related to reduction of senile plaques, inhibition of over activation in glial cells and reduction of content of Aβ1-42 in cerebral cortex and hippocampus.

Objective To probe into impacts of safflor yellow injection on rats with acute myocardial infarction and discuss its mechanism. Methods Forty Sprague-Dawley rats were divided into sham operation group ( 8 rats ) and operation groups(32 rats).The left anterior descending branch of coronary artery was ligated to establish an animal model with acute myocardial infarction.The rats with successful modeling were randomly divided into model control group, 3-, 7- and 14-days safflor yellow group.In the treatment group, the rats were injected with safflor yellow injection(2.5 mg.kg-1.d-1)for 3, 7 and 14 days, respectively.Rats in sham operation and model control group were injected 0.9% sodium chloride solution.Their weights were measured 24 h after the last drug administration, their hearts were removed, and the serum was obtained through centrifugation.The enzymic method was used to measure the lactate dehydrogenase(LDH)and creatine kinase(CK)contents of serum.Hematoxylin eosiny(HE)staining method was used to observe the change of myocardial cells.The chloride three phenyl-tetrazole( TTC) staining method was used to measure the area of myocardial infarction in the rats. The real-time fluorescent quantitative PCR method was used to measure the expression of VEGF and HIF mRNA at the marginal zone of myocardial infarction. Results The levels of LDH and CK were(106.12±35.52),(452.84±60.38)mmol.L-1 in sham operation group, and(385.66±137.58),(2 111.00±1 250.80)mmol.L-1 in model control group.LDH in 3-, 7-, 14-days treatment groups was (249.66±51.86),(104.33±51.08),(110.33±26.76)mmol.L-1, while CK was(1 713.00±584.74),(1 177.66±980.18), (421.33±54.60)mmol.L-1.LDH and CK levels of the 14-days treatment group were significantly lower than those in the model control group(both P<0.05).The area of myocardial infarction was (0.00±0.00)% in sham operation group,(13.12±6.69)% in the model control group, and(8.11±3.45)%,(7.01±2.98)%,(3.44±1.17)% in the 3-, 7-, 14-days treatment groups.The area of myocardial infarction in the 14-days treatment group was significantly lower than that of the model control group(P<0.05).The expression of VEGF and HIF mRNA was 1.99±0.27, 6.21±1.35 in the sham operation group, 1.03±0.15, 1.78±0.57 in the model control group.The expression of HIF mRNA in the 3-, 7-, 14-days treatment groups was 0.50±0.12, 1.23±0.24, 2.20± 0.32, and the expression of VEGF mRNA in the 3-, 7-, 14-days treatment groups was 0.43±1.27, 2.67±0.83, 5.78±1.23. Conclusion The safflor yellow injection has therapeutical effects on the rats with acute myocardial infarction, and the effects will become significant after 14 day.It can reduce the area of myocardial infarction and LDH and CK content at the drug administration groups, which might be related to the increase of the expression of VEGF and HIF mRNA.