2-Amino-3-hydroxylpyridinE-H2O2-horseradish peroxidase (HRP) voltammetric enzymE-linked immunoassay based on N-heterocyclic substrate has been successfully applied for the detection of carcionembryonic antigen(CEA) in human serum. 2-Amino-3-hydroxylpyridine is oxidized with H2O2 catalyzed by HRP, and the resulting electroactive product produces a sensitive voltammetric peak at the potential of 0.36 V(vs. SCE) in Britton-Robinson (B-R) buffer solution. By this voltammetric peak, free HRP can be measured and immunoassay of HRP label can be developed. The enzymE-catalyzed reaction conditions and voltammetric detection conditions have been optimized, and the electrode procedure of the enzymatic product was investigated. The selected optimum reaction conditions were that the reaction medium was pH 6.0 B-R buffer solution for 10 mL reaction solution containing 1.0 mL of 0.2 mol/L B-R buffer solution, 3.0 mL of 8.0 mmol/L 2-amino-3-hydroxylpyridine solution and 1.5 mL of 0.5 mmol/L H2O2 solution, and the reaction time was 30 min at 37 ℃. The optimum detection conditions were that the supporting electrolyte was pH 7.0 B-R buffer solution for 10 mL of the overall detection solution containing 5 mL of reaction solution and 1.0 mL of 0.2 mol/L B-R buffer solution. The optimum instrumental conditions for the detection were chosen as follows: the initial potential, 0.00 V; the final potential, -0.80 V; the potential scanning rate, 400 mV/s; the mercury drop standing time, 7 s. Under the optimum conditions, the linear range for detection of free HRP was 4.0×10-4-1.0 μg/L with a detection limit of 0.12 μg/L. Based on the new immunoassay system, the linear range of the detection to CEA was 0.50-80 μg/L and the detection limit was 0.50 μg/L, which is 10 times lower than that of traditional spectrophotometric enzymE-linked immunosorbent assay method. The 2-Amino-3-hydroxylpyridinE-H2O2-HRP voltammetric enzymE-linked immunoassay new system exhibits excellent performance having wider linear range and lower detection limit. The new method is inexpensive and simple. It has a great potential in clinical diagnosis.

OBJECTIVE:To discuss the risk factors for lung infection of CRAb in ICU,and to provide reference for clinical di-agnosis and treatment. METHODS:The univariate analysis and multivariate Logistic regression analysis were conducted with the method of case-control study,in which the clinical data of 105 cases of lung infection of CRAb in ICU were collected from our hospital during Jun. 2012 to Jun. 2014,with the 81 cases of CRAb and 24 cases of CSAb. RESULTS:The univariate analysis showed that those factors were significantly correlated with lung infection of CRAb in ICU,such as ICU hospitalization days be-fore isolation of Ab,total stay in ICU,respiratory failure,hypoproteinemia,mechanical ventilation,mechanical ventilation days, the application of carbapenem antimicrobial agents and combined use of antimicrobial agents within 15 days before isolation of Ab, abnormal C-reactive protein detection,abnormal procalcitonin detection. The multivariate analysis showed that ICU hospitalization days before isolation of Ab,the application of carbapenem antimicrobial agents within 15 days before isolation of Ab,mechanical ventilation,hypoproteinemia were the independent risk factors of CRAb. CONCLUSIONS:Based on risk factors,the measures should be taken for high-risk patients as soon as possible in ICU to prevent and treat lung infection of CRAb.

OBJECTIVE:To systematically evaluate therapeutic efficacies of perioperative application of single-dose and multipie-dose of antibiotics for preventing surgical site infection after closed fractures patients receive incision and internal fixation,and to provide evidence-based reference.METHODS:Retrieved from PubMed,EMBase,CBM,Cochrane Library,CBM,CJFD,VIP and Wanfang database,RCTs about perioperative application of single-dose (trial group) and multiple-dose (control group) of antibiotics for preventing surgical site infection after closed fractures patients receive incision and internal fixation were collected.Meta-analysis was performed using Rev Man 5.3 statistical software after literature screening,data extraction and quality evaluation by improved Jadad.RESULTS:Finally 8 clinical studies were included,involving 3 457 patients.The results of Meta-analysis showed that there was no statistical significance in the rate of surgical site infection [OR=1.02,95％ CI(0.63,1.66),P=0.94)].Cefazolin stadies were included in subgroup analysis according to drug use,and results of Meta-analysis showed that there was no statistical significance in the rate of surgical site infection[OR=1.33,95％CI(0.55,3.20),P=0.52].CONCLUSIONS:Prophylactic application of single-dose of antibiotics is recommended for preventing surgical site infection after closed fractures patients receive incision and internal fixation.

Objective To investigate the expression of Golgi phosphoprotein 3 (GOLPH3) at protein and mRNA levels in serous epitheial ovarian carcinoma and its significance.Methods The expression of GOLPH3 at protein and mRNA levels were evaluaed by Western blot and Real time RT-PCR,respectively,in 42 cases of serous epithelium ovarian carcinoma,14 cases of benign serous ovarian tumors and 7 cases of normal ovarian epithelium tissues.Results GOLPH3 mRNA was significantly higher from 2.97 to 7.04 fold in ovarian serous cystadenocarcinoma tissues compared with ovarian serous carcinoma tissues (P ＜ 0.05).There was no positive expression of GOLPH3 protein in normal ovarian epithelium tissues.GOLPH3 protein positive expression rate was higher in ovarian serous cystadenocarcinoma (73.81 ％) than that in ovarian serous carcinoma (35.71％) (P ＜ 0.01).GOLPH3 protein was correlated with the pathologic differentiation (P =0.019),the FIGO stage (P =0.042),and lymphatic metastasis (P =0.000),but was not associated with age (P =0,881).The positive rate and overexpression of GOLPH3 in poor differentiated grade group were higher than that in well and middle differentiated grade group (P ＜ 0.05).Conclusions GOLPH3 may play an important role on the development of ovarian serous cystadenocarcinoma,and may be a potential target of gene therapy.

Objective To systematically evaluate the efficacy and adverse effects of duloxetine in the treatment of domestic depression patients,and compare with those who were treated with SSRIs drugs in the same period to explore the difference between them to guide the clinical medication.Methods A search was conducted in CBMdisc,Wanfang database,CNKI,VIP,Pubmed.The double-blind randomized controlled trials on duloxetine for depression in China were collected.The quality of the included trials was assessed according to the Cochrane Handbook 5.0,and the systematic analysis was conducted by using RevMan 5.3 soft ware.Results Seven double-blind randomized controlled trials (two of duloxetine versus fluoxetine,five of duloxetine versus paroxetine) involving 1 193 patients were included.The results of rmeta-analysis showed that:①After 6-8 weeks of treatment,there were no significant differences in the effective rate (RR =1.02,95％CI=0.78-1.32,Z=0.12,P=0.90),and the final cure rate (RR=0.95,95％CI=0.75-1.19,Z=0.47,P=0.64) between the duloxetine and fluoxetine/paroxetine groups.②Adverse reactions:the incidence rate was not significantly different between duloxetine and fluoxetine/paroxetine groups (RR =1.03,95％ CI =0.86-1.23,Z=0.32,P=0.75).Conclusion After 6-8 weeks of treatment,there are no significant differences in the effective rate and the final cure rate between duloxetine and fluoxetine/paroxetine.There is no significantly difference in common adverse reactions.

Objective To explore the influence of elderly waist-hip ratio ( WHpR) on adiposity and vascular elasticity. Methods A total of 120 healthy middle aged and elderly people aged 40-60 years old were selected between February, 2015 and December, 2015. A number of 60 patients with normal ratio of WHpR were treated as a control group, while another 60 patients with higher ratio of WHpR as study group. Adiposity, arterial blood vessel elasticity, blood pressure, blood fat and blood glucose of two groups were compared. Results Normal rate of body fat and arterial blood vessel of the study group were lower than those of the control group. Adiposity, pulse wave velocity(PWV), body mass index of the study group were significantly higher than those of the control group. Systolic blood pressure, diastolic blood pressure, pulse pressure, blood glucose, uric acid, three acyl glycerin, total cholesterol, low-density lipoprotein cholesterol of the study group were higher than those of the control group, high density lipoprotein cholesterol was lower than that of the control group( P<0.05) . WHpR was positively associated with Adiposity, degree of elastic stiffness of blood vessels and body mass index (r=0.135, P=0.011;r=0.189, P=0.013;r=0.146, P=0.014). Degree of elastic stiffness of blood vessels was positively related with WHpR, adiposity, body mass index ( r=0. 189, P=0. 013;r=0. 123, P=0. 009;r=0.097,P=0.021) . Conclusions WHpR can be used as an early evaluation index of Adiposity and blood vessel elasticity for middle aged and elderly people.

Objective:To discuss the clinical and electrophysiological characteristics of propriospinal myoclonus (PSM).Methods:The clinical and electrophysiological characteristics of four patients diagnosed as PSM in the Electroencephalography Monitoring Center, Department of Neurology, Xijing Hospital, the Air Force Military Medical University from April 2018 to July 2019 were studied. All patients were accorded with diagnostic criteria of PSM that international classification of sleep disorders-3 edition recommended and were followed up.Results:There were three males and one female in the four patients. The age of onset was ranged from 43 to 55 years. The course was from eight months to three years, and the follow-up time was from three months to one year. The clinical features of the four patients were characteristically paroxysmal tic or shaking of the neck, trunk or limbs, with short duration and great frequency. All patients accepted 24-hour video electroencephalography monitoring. No epileptic discharge was recorded during the monitoring. The burst activity of deltoid, quadriceps or rectus abdominis muscle was monitored by surface electromyography at the onset of myoclonus. All patients were treated with clonazepam. Three patients had an obvious curative effect and one patient had no effect.Conclusions:The clinical manifestation of PSM is similar to seizures. There is no epileptic discharge, and only the burst activity of muscles is monitored at the onset. Most patients have significant effect on clonazepam.

This study was aimed to evaluate the clinical effect and safety of Qing-Fei Tong-Luo (QFTL) ointment for treating children with pneumonia.Randomized controlled trial (RCT) was conducted among 460 cases of children with pneumonia.The observation group was given QFTL ointment combined with basic treatment.And the control group was only treated by basic treatment.Evaluation was given on the total clinical efficacy,disappeared time of fever,cough,expectoration,shortness of breath,and medication safety.The incidence of respiratory diseases was followed up on the 30th days after drug withdrawal.The results showed that in the aspect of clinical efficacy between two groups,the cure rate of the observation group was 98.26％,and that of the control group was 93.89％,with statistic significance (P ＜ 0.05).The cure rate of the observation group was better than that of the control group.There was statistical difference on expectoration disappeared time (P ＜ 0.05).There was no statistical difference on disappeared time of fever,cough and shortness of breath (P ＞ 0.05).There was statistical difference on the incidence of respiratory diseases on the 30th days followed-up after drug withdrawal (P ＜ 0.05).There was no statistical difference on the incidence of upper respiratory tract infection,pneumonia and asthma (P ＞ 0.05).No adverse reactions occurred in the observation group.It was concluded that QFTL ointment combined with basic therapy on the treatment of pneumonia in children was significantly better than the control group in the aspect of clinical efficacy,expectoration disappeared time and the incidence of bronchitis.It is safe and effective.The prognosis is good and worthy of promotion in the clinical practice.