Objective To study factors that may increase the expression of human ? synuclein gene in prokaryotic cells. Methods proEXNACP vector was transferred into competence cells. Factors such as IPTG levels, initial concentration of cells, type and pH of media, time and temperature of induction were studied in relation to the production of ? synuclein. Results IPTG concentration and pH change does not have a significance impact on ? synuclein production. But the time and temperature of induction, media and initial concentration of cells significantly affected the expression.Conclusion The best condition for the production of ? synuclein includes factors such as LB media with an initial concentration of cells of 0 5\|0 8 A at 37℃ culture with oxygen of 180?rpm/min for 1 2?hours.

Objective:In order to provide policy-makers with basis and reference for improving the operational efficiency of county general public hospitals, this paper studies the changes in overall efficiency, technical efficiency and scale efficiency of 40 county general public hospitals in Fujian province from 2009 to 2014 , as well as how the to-tal factor productivity changes over the time. Methods: After collecting the relevant data of hospital operations from 2009 to 2014, this paper uses CCR, BBC, Malmquist model and other data envelopment analysis (DEA) methods to analyze the data. Results:The vast majority of those 40 county general public hospitals are in decreasing state. The total factor productivity of 40 hospitals from 2009 to 2014 is 1. 019. There are 21 hospitals (52. 5%) that slightly im-proved their productivity, of which 3 hospitals increased their productivity mainly due to technological progress, 3 hospitals due to efficiency increase, and the rest 15 hospitals due to the effect of both technological progress and effi-ciency increase. Conclusions:The operational efficiency of county general public hospitals in Fujian province is gen-erally insufficient, and there are significant differences between operating efficiency of different regions. The efficien-cy of hospitals in mountainous areas had increased, but the efficiency of hospitals in coastal areas had decreased. Therefore, in order to increase investment in county general public hospitals, the government should take differential policy and pay attention to the reasonable control of hospital size, as well as to strengthen the connotation building and attach importance to improving medical service technologies.

Objective To observe the visual acuity change in patients with different patterns of optical coherence tomography (OCT) of diabetic macular edema (DME) after intravitreal ranibizumab injection and/or laser photocoagulation.Methods A retrospective observational case series.Seventy patients (99 eyes) with DME were enrolled.Best-corrected visual acuity (BCVA) was evaluated using the international vision test chart,and then convert the result to the logarithm of the minimum angle of resolution (logMAR).According to the morphological characteristics of OCT,the DME was divided into 3 patterns,including diffuse macular edema (DRT),cystoid macular edema (CME) and serous neuroepithelial layer detachment.The average follow-up was (80.43 ± 74.89) days.The patients were divided into 3 groups according to the different treatments,including intravitreal ranibizumab injection group (group A,21 patients,25 eyes),intravitreal ranibizumab injection and laser photocoagulation group (group B,23 patients,26 eyes),laser photocoagulation group (group C,26 patients,48 eyes).The changes of absolute BCVA (ABCVA) and improved visual acuity were compared between different treatment groups and different OCT patterns.ABCVA =logMAR BCVA before treatment-logMAR BCVA after treatment.Improvement more than 0.3 of logMAR value was considered as improved visual acuity.Results There was no significant difference in ABCVA between different treatment groups (F=0.050,P＞0.05).The improved visual acuity in group A and B were great than group C (x2=5.645,6.301;P＜0.05).In group A,B and C,there was no significant difference in ABCVA and improved visual acuity between different OCT patterns (P＞0.05).Improved visual acuity of DRT and CME eyes were higher in group A&B (70.59％ and 50.00％) than in group C (26.47％ and 14.29％),the difference was statistically significant (x2=5.075,4.453;P＜0.05).Conclusions There is no obvious change of visual acuity in patients with different OCT patterns of DME after the same treatment by intravitreal ranibizumab injection and/or laser photocoagulation.The improved visual acuity is not consistent in same OCT patterns after different treatment.

Multivariate time series problems widely exist in production and life in the society. Anomaly detection has provided people with a lot of valuable information in financial, hydrological, meteorological fields, and the research areas of earthquake, video surveillance, medicine and others. In order to quickly and efficiently find exceptions in time sequence so that it can be presented in front of people in an intuitive way, we in this study combined the Riemannian manifold with statistical process control charts, based on sliding window, with a description of the covariance matrix as the time sequence, to achieve the multivariate time series of anomaly detection and its visualization. We made MA analog data flow and abnormal electrocardiogram data from MIT-BIH as experimental objects, and verified the anomaly detection method. The results showed that the method was reasonable and effective.
Data Interpretation, Statistical ; Electrocardiography ; Humans ; Image Interpretation, Computer-Assisted ; Pattern Recognition, Automated

Objective To investigate the effect of ReCell technique on diabetic foot and explore main nursing measures. Methods Forty patients with diabetic foot were divided into control group(n=20)and experiment group(n=20)according to admission time. With wound bed prepared, the control group received only free skin flap grafting and the observation group was managed with ReCell technique plus free skin flap grafting.The skin flap survival and treatment time in two groups were observed and compared. Result The skin flap survival in the experiment group was better than the control group and the treatment time was shorter. Conclusion ReCell technique is effective in raising the survival rate of skin flap in diabetic foot and shortening treatment time.The improvement of nursing measures is critical for the success of ReCell technique.

Objective To evaluate the level of IL-17 in rheumatoid arthritis(RA)and explore its clinic value.Methods Serum were collected from 84 RA patients.IL-17 was detected by ELISA.C reactive protein(CRP),glucose-6-phosphate isomerase(GPI),rheumatoid factor(RF),anti-cyclic citrullinated peptide(Anti-CCP)antibody,IL-1? and tumor necrosis factor-?(TNF-?)were assayed,too.The correlations between IL-17 and clinical manifestations as well as laboratory findings were analyzed.Results The serum level of IL-17 in active RA patients was(113.8?21.7)ng/L,significantly higher than that of non-active RA[(76.3?11.9)ng/L,P0.05).There were positive correlations between IL-17 and clinic index,for example swelling joints,tenderness joints and X-ray phase of joints.Conclusion High expression of IL-17 was shown in RA,and related with disease activity.

Objective\ To prepare a digoxingen labelled cRNA probe for human tyrosine hydroxylase(hTH 2).Methods\ Using molecular cloning techniques the recombinant plasmid pGEMTH 2 was constructed.According to analysis of restriction endonucleases,the pGEMTH 2 contained the DNA fragment of hTH 2 gene and inserting sit preparation was correct for cRNA probe.From recombinant plasmid pGEMTH 2 prepared cRNA probe was identified by dot blot hybridization.Results\ The dot blot hybridization showed that the positive reaction sites were purple blue.Conclusion\ This probe prepared in present study was sensitive and reliable.This probe might provide a tool for identifying the effect of gene therapy in animal model of Parkinson disease.

Objective To investigate the relationship between glomerular filtration rate (GFR) and diabetic retinopathy (DR) and macular thickness in patients with type 2 diabetes mellitus (T2DM).Methods A total of 161 T2DM inpatients were enrolled in this study.There were 95 males (95 eyes) and 66 females (66 eyes),with an average age of (62.2±11.0) years.The average duration of diabetes was (14.8±7.9) years.The patients were grouped according to the degree of DR.Among them,91 patients were no DR,24 patients were mild non-proliferative DR (NPDR),24 patients were moderate NPDR,13 patients were severe NPDR and 9 eyes were proliferative DR (PDR).Severe NPDR and PDR were combine into severe DR group for statistical analysis.All patients underwent direct ophthalmoscope,fundus colorized photography,spectral domain optical coherence tomography (SD-OCT),fasting blood-glucose,glycated hemoglobin and renal function examinations.GFR was evaluated by 99 mTcDTPA.DR degree was evaluated by direct ophthalmoscope and fundus colorized photography.Central subfield (CSF),central macular volume and mean retinal thickness (MRT) were measure by SD-OCT.The correlation between GFR and DR staging and macular retinal thickness were analyzed by Spearman correlation analysis and Pearson correlation analysis.Logistic regression analysis was used to analyze the correlation between GFR and presence of DR.Results GFR was gradually decreased in patients with no DR,mild NPDR,moderate NPDR and severe DR (F=12.32,P＜0.001).Pearson correlation analysis demonstrated that GFR was negatively correlated to CSF (r=-0.202,P=0.010);but no correlation with MRT (r=-0.087,P=0.272).Spearman correlation analysis demonstrated that GFR was negatively correlated to DR staging (r=-0.325,P ＜ 0.001).The difference of DR prevalence rate in normal,slight abnormal renal function and renal insufficiency patients was significant (x2=12.32,P=0.002).Logistic regression analysis demonstrated that lower levels of GFR was significantly associated with presence of DR (95％ confidence interval=1.71-4.32,odds ratio=2.72,P＜0.001).Conclusion In T2DM patients,GFR is negatively correlated to DR staging and CSF.Lower GFR is independent risk factors for DR.

Objective:The aim of this paper is to analyze and evaluate the equity and utilization efficiency of public health resource allocation in 31 provinces and cities in China, and provides reference and basis for public health resource allocation planning. Methods:The allocation of public health resources was evaluated by cluster anal-ysis and used data envelopment analysis was to explore the efficiency of public health resource allocation. Results:The degree of aggregation of public health resources in densely populated and economically developed provinces and cities were greater than or close to 1 , and the difference with the population concentration was mostly less than 0 . The degrees of aggregation in less economically backward provinces were less than 1 , and the difference with the popula-tion concentration was mostly more than 0 . The average technical efficiency of public health resource allocation was 0. 44, and the mean of pure technical efficiency and scale efficiency were 0. 74 and 0. 64 respectively. Conclusion:The degrees of aggregation of public health resources in economically developed provinces and cities are higher, but the corresponding population is poorly distributed based on population distribution. For economically backward prov-inces and cities, the geographical availability of public health resources is poor. In addition, due to unreasonable re-source allocation structure and proportion, public health resources configuration efficiency is relatively low.

Objective: To investigate the factors affecting drug-induced liver injury among patients with pulmonary tuberculosis in Ningbo City from 2015 to 2019, so as to provide insights into the prevention of drug-induced liver injury. Methods: Demographic features, presence of drug-induced liver injury, and disease history prior to anti-tuberculosis therapy were captured from patients with pulmonary tuberculosis in Ningbo City from 2015 to 2019 through the Tuberculosis Management Information System of the Chinese Disease Control and Prevention Information System and Ningbo Regional Diagnosis and Treatment Information Platform. Factors affecting drug-induced liver injury was identified using the multivariable logistic regression analysis. Results: A total of 9 397 patients with pulmonary tuberculosis were enrolled, among whom 66.43% ( 6 242 case ) were male, 65.89% ( 6 192 cases ) were at ages of <60 years, and 92.35% ( 8 678 cases ) were treatment-naïve. There were 1 425 patients with drug-induced liver injury (15.16% incidence), including 729 cases with grade 1 (51.16%), 24 cases with grade 2 (1.68%), 7 cases with grade 3 (0.49%), 7 cases with grade 4 ( 0.49% ), and 658 cases with ungraded drug-induced liver injury ( 46.18% ). The median duration between drug administration and development of drug-induced liver injury was 24 ( interquartile range, 44 ) days. Multivariable logistic regression analysis identified treatment-naïve ( OR=1.464, 95%CI: 1.153-1.859 ) and history of liver disease ( OR=2.001, 95%CI: 1.709-2.342) as risk factors for drug-induced liver injury in patients with pulmonary tuberculosis. Conclusion The incidence of drug-induced liver injury was 15.16% among pulmonary tuberculosis patients in Ningbo City from 2015 to 2019. Treatment-naïve and a history of liver disease are associated with drug-induced liver injury among patients with pulmonary tuberculosis.