Objective To compare the effects of Chinese herbal fumigation and ultraviolet light exposure on air disinfection in neurosurgical intensive care unit.Methods The floors and the tables in the rooms of ICU were all disinfected using 0.02%84 disinfectant.The air disinfection was performed in the rooms using Chinese herbal(elsholtziae,ramulus cinnamomi,forsythia suspense,flos caryophylli)fumigation as the experiment group and those using ultraviolet light exposure as the control group,both for 30 times.The two disinfection methods were compared before air disinfection,at hours 0,1,2,4,8 and 12 in terms of bacteria tests.Results The air quality on natural bacteria in both groups met the standard of Class Ⅱ Environmental Health Criteria at hour 0,l after air disinfection,without significant difference between the two groups at each time point(P>0.05).In the control group,the bacteria began to grow in number one hour after ultraviolet light exposure and overgrew two hours after air disinfection.In the experiment group,the bacteria grew less,never exceeding the standard level at all time points.The disinfection effect of the experimental group was all significantly better than that of the control group at the time points of 2 h,4 h,8 h,12 h(P<0.05 or P<0.01). Conclusions Chinese herbal fumigation is superior to the UV light irradiation disinfection.It is safe and harmless even in case of medical staff working in the unit.

Standardization, objectification, and normalization of TCM syndromes are emphasis, difficulty, and hot issue of inheritance and development of TCM.With the technological development of computer and extensive application of multi-disciplinary integration, research methods for the identification of TCM syndrome classification emerge in endlessly. This article analyzed the application status of multivariate statistical analysis in the identification of TCM symdrome classification, summarized application status and existing problems of cluster analysis, PCA and factor analysis, discriminant analysis and Logistic regression analysis, and structure equation model in the identification of TCM symdrome classification, which provided references for further studies on identification methods of TCM symdrome classification.

Objective To investigate the association between the peroxisome proliferator-activated receptor-or (PPARα) polymorphism rs1800206 (c.484C ＞ G,L162V) and the risk of metabolic syndrome (MES)Methods There were 1184 subjects aged 40-60 years recruited from our hospital between March 2010 and March 2011.The PPARα polymorphism 484C ＞ G was genotyped using TAQMAN assay by real-time PCR. The relationship between PPARα polymorphism and MES risk were investigated.Results The genotype frequencies were 91.4％,8.4％ and 0.2％ for the PPARα CC,CG and GG,respectively.This SNP was in Hardy-Weinberg equilibrium(P =0.845).Compared with the most common CC genotype,the variant genotypes(CG + GG) had higher fasting glucose((5.82 ± 1.59) mmol/L vs (5.49 ± 1.17) mmol/L,t =2.630,P =0.009) and LDL-C levels((3.53 ± 1.03) mmol/L vs (3.36 ± 0.65) mmol/L,t =2.376,P =0.018) and lower HDL-C levels ((1.56 ± 0.35) mmol/L vs (1.65 ± 0.43) mmol/L,t =2.430,P =0.015).Furthermore,the 484G variant genotypes(CG + GG)was associated with the risk of MES after adjusting for age,gender,education,BMI and lifestyle (smoking and alcohol status) (adjusted OR =1.89 ;95％ CI =1.09-3.23,P =0.012).Condusion PPARα polymorphism rs1800206 is a significant independent predictor of the MES in Southern Chinese.

Objective To investigate the association between the EPHX2 polymorphism G860A and the risk of hypertension in mild ages. Methods In a hospital based case-control study, one common polymorphism C860A in EPHX2 gene in a case-control study of 100 hypertension and 300 age- and sex frequency - matched disease-free controls were genotyped in a Southern Chinese population. SAS 9. 13 was used toanalysis the polymorphism and hypertension risk. Results Genotype frequencies of EPHX2 G860Alocus between the cases and the controls were significantly different (P =0. 01). Compared with the most common 860GG genotype, the 860GA heterozygote had an increased risk of hypertension (adjusted OR =1.98; 95%CI = 1.19 -3.51), the AA homozygote had a further increased risk of hypertension (adjusted OR =2. 84; 95%CI = 1.01 -6. 11). There was a significant trend for an allele dose effect on risk of hypertension (P trend = 0. 03). Conclusions EPHX2 polymorphism G860A is associated with an increased risk of hypertension, and the 860A variant may be a marker for susceptibility to hypertension.

Aim To investigate the feasibility of using arnnion allograftcombined with nerve growth factor to bridge peripheral nerve deficit.Methods 48 SD rats as models of sciatic nerve deficit were randomlyassigned into one of the following groups: autograft (Group A), allograftwith Cyclosporine A (CSA) 5 mg/(kg @ d) for 5 weeks (Group B), deficitbridged by amnion allograft combined with nerve growth factor (Group C) ,and allograft with no immune treatment (Group D) . 6 Wistar rats weresacrificed as the donors of the sciatic nerve allograft. Observation wascarried under light microscope and electron microscope examination at 12weeks post-operatively for morphological studying; The latency, ampli-tude, conduct velocity and negative area under the curve were recordedas electrophysiologic index; Maximum contractility of gastrocnemiusmuscle and thickness of myelin of the regenenative nerve were measured;Axons counting were also performed to evaluate the quality of regenera-tion. Results At 12 weeks, group A, B and C recovered better (Indexessuch as latency, amplitude, conduct velocity , negative area under thecurve, maximum contractility of gastrocnemius muscle, thickness of myelinand axons counting were compared by ANOVA test, F= 12.87, P ＜0.05; F=19.54, P ＜0.05; F=35.21, P ＜0.01; F=56.33, P ＜0.01. F=75.26, P ＜0.05; F=14.83, P ＜0.05; F=96.11, P ＜0.01), and no significant difference was found among these groups ( P ＞0.05). Conclusion For long distance peripheral nerve deficit, usingamnion allograft combined with nerve growth factor to bridge the deficit canfacilitate the regeneration of nerve and the recovery of function.

Objective To evaluate the clinical characteristics,treatment,outcome and complications of child and adolescent nasopharyngeal carcinoma (NPC). Methods From January 1970 to April 1997, the records of 145 NPC patients younger than 21 years of age were reviewed. The clinical stages according to 92'Chinese NPC Staging System were :stageⅠin 1, Ⅱin 8, Ⅲ in 79 and Ⅳ in 57. All patients were treated with external beam radiotherapy. Before 1988, parallel opposed lateral pre-auricular portals were chiefly used in 75 patients and after 1988, parallel opposed lateral facio-cervical portals were adopted in 70. The radiation dose to the primary tumor ranged 45-80?Gy: 70?Gy in 50 cases and 32 of them also received chemotherapy. Results Distant metastasis developed in 26 cases, while local and/or regional recurrence in 14. The actuarial overall survival rates of 1-, 3-, 5, and 10-years were 96.3%, 79.9%, 76.5% and 69.4%, respectively. Among 45 dead cases, 16 did so of metastasis, 11 of local and/or regional recurrence and 18 of other reasons. Univariate analysis suggested that clinical stage, size and site of involved lymph nodes, skull base involvement were significant prognostic factors of survival, whereas sex、age、dose、therapeutic method and chemotherapy were not. Conclusions 1. Even though the majority of pediatric and adolescent NPC were advanced, it signifies a relatively good survival. 2. As the normal tissue of pediatric and adolescent patients tolerates radiation poorly, prudence should be meticulously practiced in deciding the radiation dose and radiotherapeutic fields.

OBJECTIVE:To analyze the clinical efficacy of edaravone combined with Xingnaojing in the treatment of acute severe head injury.METHODS:72 patients with acute severe brain injury were collected from Nov.2008 to Nov.2009 and randomly divided into 2 groups.Treatment group were treated with edaravone and Xingnaojing and control group received edaravone alone.14 days after treatment,APACHE-Ⅱ and GCS score were collected.The overall efficacies of 2 groups were evaluated three months after suffering from injury.RESULTS:The GCS score of treatment group was increased while APACHE-Ⅱ score was decreased,there was statistical significance in difference between 2 groups(P

To investigate the protein and mRNA expression of pancreas/duodenal homeobox-1 (PDX-1), a transcription factor as a marker for pancreatic stem cells, in pancreatic ductal cells of rats after partial (90%) pancreatectomy and evaluated the significance of the PDX-1 expression. Western blot and Reverse transcriptase-polymerase chain reaction (RT-PCR) were used to detect the expression of PDX-1 protein and mRNA respectively. PDX-1 protein was only faintly detected in pancreatic ductal cells on the day 1 after partial pancreatectomy. On the day 2 and 3 after operation in operation group, a 2-3 fold increased PDX-1 protein was observed, corresponding to the characteristic 42-kD protein in Western blot. There was significant difference between operation group and sham-operation group (P<0.05). PDX-1 protein expression on the day 5 and 7 after operation had already been no difference from control group (P>0.05). RT-PCR revealed the PDX-1 mRNA expression showed no significant difference between operation group at various time points and sham-operation group (P> 0.05). These results indicate that there was overexpression of PDX-1 in the cells of pancreatic epithelium during the regeneration of remnant pancreas after partial pancreatectomy in adult rats, suggesting the pancreatic stem cells in pancreatic ductal epithelial cells are involved in the regeneration of remnant pancreas and the expression of PDX-1 in ductal cells was regulated posttranscription.
Epithelial Cells/metabolism ; Homeodomain Proteins/*biosynthesis ; Homeodomain Proteins/genetics ; Pancreatectomy/methods ; Pancreatic Ducts/cytology ; Pancreatic Ducts/*metabolism ; RNA, Messenger/biosynthesis ; RNA, Messenger/genetics ; Rats, Sprague-Dawley ; Trans-Activators/*biosynthesis ; Trans-Activators/genetics

Objective To analyze psychological stress level and features of recruits in training camp.Methods Psychological stress self-evaluation test (PSET) was applied to 1 600 recruits in training camp.Results ①There were 64 recruits(64/1600,4％) who had high level of psychological stress(T score ≥70).②The psychological stress symptoms of recruits in training camp mainly manifested as increased alertness (87.7％),sleep deprivation (57.6％),mental and physical fatigue (48.7％) and nervous irritability (45.2％).③Psychological stress levels of recruits with different ages and different levels of self-feeling in camp had significant differences(P＜0.05).Conclusion Recruits in training camp have partly excessive psychological stress responses,targeted emergency decompression trainings should be carried out in recruits.

Objective To investigate the role of renin angiotensin system (RAS) in pathogenesis of nonalcoholic fatty liver disease (NAFLD).Methods Twenty-four Wistar rats were evenly divided into control group and model group.The rats of control group were fed with normal diet,and model group were with high-fat diet.Rats were killed at the eighth week and serum liver function,blood lipid,glucose and insulin were tested.The liver tissues were stained with HE and Picro acid-Sirius red for pathological observation.The liver tissue concentration of angiotensin Ⅱ was determined by ELISA method and the expression of TGF-β1 in liver tissue was examined by immunohistochemistry.Results After eight weeks high fat feeding,weight,liver index,liver function,blood lipids and serum insulin of model group were significantly higher than those of control group (weight:(463.50±22.72) g vs.(404.29±10.32) g; liver index:(3.75±0.21) g vs.(2.66±0.15) g; ALT:(79.8±8.6) U/L vs.(58.8±11.6) U/L; AST:(200.01±51.72) U/L vs.(150.30±37.27) U/L; total cholesterol:(3.67±0.48) mmol/L vs.(1.50±0.23) mmol/L; triglycerides:(2.06±0.40) mmol/L vs.(0.71±0.34) mmol/L; insulin:(17.37±2.89) pmol/L vs.(11.08±2.12) pmol/L),and all the differences were statistically significant (P＜0.01).The histopathological results of model group indicated liver steatosis,inflammatory reaction in part of lobule and portal area and significant fibrosis in part of liver tissue.The liver tissue angiotonin Ⅱ concentration of model group [(32.80 ± 2.81)pg/ml] was higher than that of control group [(22.83 ± 1.75) pg/ml,t =9.559,P＜0.01].The immunohistochemistry results showed that the expression of TGF-β1 of model group was obviously higher than that of control group (Z=-2.540,P =0.011 ).Spearman correlation analysis revealed that the increasing degree of angiotensin Ⅱ concentration was positively correlated with liver steatosis scores (r=0.644,P=0.002) and the expression of TGF-β1 (r=0.470,P=0.037).Conclusion The concentration of angiotensin Ⅱ and TGF-β1 increased in the livers of model rats,which indicated that RAS may participate in the pathogenesis and progress of NAFLD.