Sequences analysis revealed Grass carp reovirus (GCRV) s10 was 909 nucleotides coding a 34 kDa protein denoted as VP7, which was determined to be a viral outer capsid protein (OCP). To obtain expressed OCP in vitro, a full length VP7 gene was produced by RT-PCR amplification, and the amplified fragment was cloned into T7 promoted prokaryotic expression vector pRSET. The recombinant plasmid,which was named as pR/GCRV-VP7,was then transformed into E.coli BL21 host cells. The data indicated that the expressed recombinant was in frame with the N-terminal fusion peptide. The over-expressed fusion protein was produced by inducing with IPTG, and its molecular weight was about 37kDa, which was consistent with its predicted size. In addition, the fusion protein was produced in the form of the inclusion body with their yield remaining steady at more than 60% of total bacterial protein. Moreover,the expressed protein was able to bind immunologically to anti-his-tag monoclonal antibody (mouse) and anti-GCRV serum (rabbit). This work provides a research basis for further structure and function studies of GCRV during entry into cells.

Objective: To explore the acute effect of air pollution on mortality for patients with cardio cerebral vascular disease and to provide the basis for disease prevention and control.
Methods: The Mortality for patients with cardio cerebral vascular disease from 2001-01 to 2009-12 was from Tianjin Centers for Disease Control and Prevention, the meteorological and air pollution data were from Tianjin meteorological bureau and Tianjin environmental monitoring station respectively. The Single and multiple generalized additive model (GAM) extended poisson regression analysis was performed to calculate the relationship between air pollution and cardio-cerebral vascular disease mortality by controlling the time trends, weather, the day of week and air population.
Results: Results: Single GAM analysis indicated that when the effect of SO2, NO2 and PM10 in the air reached the maximum in the day, the RR values for the mortality in patients with cardio-cerebral vascular disease increased 1.13%[95%CI (0.76-1.51)%], 0.78% [95%CI ( 0.41-1.15)%] and 0.61% [95%CI ( 0.51-0.71)%] respectively; when the average concentration of SO2, NO2 and PM10 increasing 10μg/m3 per day, after 0-5 days, the RR values for the mortality elevated 0.70% [95%CI (0.47-0.94)%], 0.51% [95%CI (0.27-0.74)%] and 0.16% [95%CI (0.06-0.27)%] respectively. Multiple GAM analysis presented that when SO2, NO2 and PM10 increasing 10 μg/m3 per day, the RR values for the mortality elevated 0.77% [95%CI (0.58-0.97)%], 0.41% [95%CI (0.05-0.78) %] and 0.38% [95%CI (0.12-0.64%)%] respectively.
Conclusion: The air pollution could increase the mortality risk in patients with cardio-cerebral vascular disease, it is necessary to establish the prevention system in order to decrease the mortality risk in those patients.

Objective To explore the clinical significance of CT-angiography (CTA) in predicting hematoma enlargement in patients with acute hypertensive cerebral hemorrhage (HICH). Methods A prospective cohort study was performed on 50 patients with HICH. HICH and spot sign were diagnosed definitely by computerized tomography (CT) and CTA within 3 ~ 6 hours of symptom onset. Patients were dichotomized according to the presence or absence of the spot sign. CT scan was repeated immediately when patients′symptoms worsened or at 24 hours after onset of symptoms in order to find out the enlargement of hematomas. The relationship between hematoma expansion and spot sign of CTA was investigated. Results (1) Thirteen (26.0%) patients demonstrated the presence of spot sign of CTA, and 37 (74.0%) patients were without spot sign. Baseline clinical variables were similar in both groups. (2) Hematoma expansion occurred in 14 (28.0%) patients on follow-up. Eleven (84.6%) patients with and 3 (8.1%) patients without the spot sign of CTA were demonstrated hematoma expansion. The significance difference was found between the two groups (X2=24.27,P<0.05). Conclusions In acute HICH patients, CTA provided more radiological information and the CTA spot sign was associated with the presence of hematoma expansion. The spot sign will be recommended as an entry criterion for future trials of haemostatic therapy in patients with acute HICH.

Objective To explore the causes of death and life expectancy after elimination of main causes of disease in residents of Tianjin. Methods The death registry data of Tianjin residents in 2014 were collected and coded in“international classification of disease, 10th edition”. The crude death rate and life expectancy after elimination of main causes of disease were calculated, respectively. Results In 2014, the crude death rate in Tianjin residents was 70.708 per million, while in male and female were 78.728 and 62.637 per million respectively. The main cause of death in Tianjin residents was non-communicable disease. The top four death causes were heart disease, cancer, cerebrovascular disease and respiratory disease, accounting for 31.5%, 23.6%, 22.2% and 8.3% of the total death. The top four life expectancy lost diseases were heart disease, cerebrovascular disease, cancer and respiratory disease, with a 6.46 year, 3.28 year, 3.11 year and 1.25 year life increase respectively. Conclusion Non-communicable diseases are the major reason of death and life expectancy lost disease in Tianjin residents, which needs urgent effective intervention to control.

Objective: To observe the incidence of acute myocardial infarction (AMI) between 1999 and 2013 in Tianjin residents and analyze the incidence differences on residents with various age, gender and living in urban or rural areas. The data might help for targeted prevention strategies among Tianjin residents. Methods: AMI incidence data between 1999 and 2013 were obtained based on Tianjin cardiovascular disease incidence surveillance registry established by the Tianjin Centers for Disease Control and Prevention (CDC). Related information such as permanent residents′ population data were obtained from Tianjin Municipal Public Security Bureau. The Chinese population data in 2000 were used for age-sex-standardized rates estimation. Difference between two (or more) independent groups was compared by the Chi Square statistics. The Chi-square test for trend was used for computing the incidence trend in years and ages. Results: AMI incidence rate in Tianjin declined from the year 1999 to 2013 with the rude incidence rate of 80.46/100 000 to 81.29/100 000, and with the standardized incidence rate of 64.85/100 000 to 44.57/100 000 (Z=-35.767, P<0.001). AMI incidence decreased gradually in residents aged over 45 years old (P<0.01), but increased in residents younger than 45 years old (P<0.001) from 1999 to 2013. The AMI incidence rate is consistently higher in male residents (rude incidence 99.89/100 000-102.98/100 000, standardized incidence rate 78.53/100 000-56.61/100 000) than in female residents (rude incidence 61.18/100 000-59.44/100 000, standardized incidence rate 50.31/100 000-31.76/100 000, both P<0.001) and higher in urban residents (rude incidence rate 133.98/100 000-98.02/100 000, standardized incidence rate 99.89/100 000-50.12/100 000) than in rural residents (rude incidence rate 35.57/100 000-66.19/100 000, standardized incidence rate 32.68/100 000-43.51/100 000, Z=6.217, P<0.001). AMI incidence decreased significantly in the urban residents (rude incidence rate 133.98/100 000-98.02/100 000, standardized incidence rate 99.89/100 000-50.12/100 000, Z=-46.968, P<0.001), while significantly increased in rural residents (rude incidence rate 35.57/100 000-66.19/100 000, standardized incidence rate 32.68/100 000-43.51/100 000, Z=6.217, P<0.001) during the study period. Conclusions The general incidence of AMI decreased during the study period in Tianjin residents. However, AMI incidence significantly increased in young male residents and rural residents. It is necessary to develop corresponding strategies for AMI control for Tianjin residents with different age/gender and living in different areas.

BACKGROUND: Severe cutaneous adverse reactions (SCAR) to drugs are a crucial public health issue and the use of systemic corticosteroids in SCAR has been controversial. OBJECTIVE: To analyze clinical features, causative drugs, treatment, outcomes, and prognostic factors of SCAR in the case-series of 173 patients, and add more information to the debate of using systemic corticosteroids in SCAR management. METHODS: A retrospective study of 173 SCAR patients diagnosed with drug reaction with eosinophilia and systemic symptoms (DRESS), Stevens-Johnson syndrome (SJS)/toxic epidermal necrolysis (TEN) or acute generalized exanthematous pustulosis (AGEP) at a tertiary care institution in China between January 2014 and December 2017 was conducted. RESULTS: Of 173 patients, allopurinol, carbamazepine, and antibiotics are the most frequently implicated drugs for DRESS (40.4%), SJS/TEN (26.0%), and AGEP (40.0%) respectively. Moreover, there is a strongly negative correlation between early corticosteroids use and the progression (p=0.000) and severity (p=0.01) of skin lesions. However, there is no association between early corticosteroids use and the mortality of SCAR (odds ratio: 1.01, 95% confidence interval: 0.95~1.08). In addition, lymphadenopathy, eosinophilia, and interval from onset to corticosteroids treatment were correlated with SCAR prognosis. CONCLUSION: Prompt short-course systemic corticosteroids use is associated with early-stage skin lesions remission without influencing the disease mortality. Lymphadenopathy and eosinophilia were the independent poor prognostic factors of SCAR.
Acute Generalized Exanthematous Pustulosis ; Adrenal Cortex Hormones ; Allopurinol ; Anti-Bacterial Agents ; Carbamazepine ; China ; Cicatrix ; Drug Hypersensitivity Syndrome ; Eosinophilia ; Humans ; Lymphatic Diseases ; Mortality ; Prognosis ; Public Health ; Retrospective Studies ; Skin ; Stevens-Johnson Syndrome ; Tertiary Healthcare

Objective To understand the distribution of reported road traffic injuries case in Tianjin from January to December 2013.Methods The injury data was collected from the disease surveillance system which covered all the areas in Tianjin.All the reported injury cases were at their first medical care seeking in sentinel hospitals from 1 January 2013 to 31 December 2013.Results A total of 26 405 injury cases were reported,including 103 deaths (0.4％),during this period with the incidence of 263.01/100 000.The male to female ratio of the cases was 1.68 ∶ 1 and average age of the cases was (40.24 ± 17.58) years.The injuries caused by motor vehicle traffic accident accounted for 74.0％ (19 547 cases) and the non-motor vehicle traffic accident caused cases accounted for 26.0％ (6 858).The first four areas with higher incidence were Binhai (684.86/100 000),Dongli (634.03/100 000),Xiqing (519.83/100 000) and Jinnan (504.12/100 000) districts.The three districts with lower incidence were Heping (44.69/100 000),Nankai (52.36/100 000) and Hedong (64.34/100 000) districts.The mild,moderate and serious cases accounted for 59.7％ (15 771 cases),33.1％ (8 747 cases) and 6.8％ (1 783 cases) respectively.The differences in incidence among different districts and age groups were statistical significant (P＜0.005).The death number in Tanggu district was highest,accounting for (26.21％) of the total,and age specific death number was highest in age group 45-64 years,accounting for 46.60％ of the total.Conclusion The case number and severity of road traffic accident caused injury varied with area and age group in Tianjin.It is necessary to develop targeted prevention and control measures to reduce the incidence of road traffic accident related injuries.

OBJECTIVETo understand the smoking-attributed mortality by inclusion of smoking information into all causes of death surveillance.

METHODSSince 2010, the information about smoking status, smoking history and the number of cigarettes smoked daily had been added in death surveillance system. The measures of training, supervision, check, sampling survey and telephone verifying were taken to increase death reporting rate and reduce data missing rate and underreporting rate. Multivariate logistic regression analysis was conducted to identify risk factors for smoking-attributed mortality.

RESULTSDuring the study period (2010-2014), the annual death reporting rates ranged from 6.5‰ to 7.0‰. The reporting rates of smoking status, smoking history and the number of cigarettes smoked daily were 95.53%, 98.63% and 98.58%, respectively. Compared with the nonsmokers, the RR of males was 1.38 (1.33-1.43) for all causes of death and 3.07 (2.91-3.24) for lung cancer due to smoking, the RR of females was 1.46 (1.39-1.54) for all causes of death and 4.07 (3.81-4.35) for lung cancer due to smoking, respectively.

CONCLUSIONThe study of smoking attributed mortality can be developed with less investment by using the stable and effective all causes of death surveillance system in Tianjin.

Cause of Death ; China ; epidemiology ; Female ; Humans ; Logistic Models ; Lung Neoplasms ; etiology ; mortality ; Male ; Multivariate Analysis ; Population Surveillance ; methods ; Risk Factors ; Smoking ; adverse effects ; mortality

Objective To investigate the change of incidence and age distribution of cervical cancer in Tianjin from 2007 to 2013.Methods The incidence data of cervical cancer and population data were collected from the cancer registry system of Tianjin Center for Disease Control and Prevention and Tianjin Municipal Public Security Bureau,respectively.The crude incidence,and age-standardized incidence of cervical cancer were calculated by using SPSS software.The Join Point Regression Program software was used to detect the trend of cervical cancer incidence.Results A total of 3 362 cervical cancer patients were diagnosed during 2007 to 2013.The average age of the patients was 48.11 years.The crude incidence was 9.85/100 000.The annual world standard age specific incidence was 6.65/100 000.The incidence in urban area was higher than that in rural area,but the proportion of the cases in urban area showed a downward trend (trendx2=21.92,P=0.001) and the proportion of the cases in rural area showed a upward trend (trend x2=12.70,P=0.048).The difference was significant.The incidence was generally stable in urban area,the APC value was 2.7％ (95％CI:-9.1％-16.2％),the difference was not significant (Z=0.564,P=0.597);The incidence rate in rural area showed an upward trend,APC value was 13.4％ (95％CI:3.5％-24.2％),the difference was significant (Z=3.549,P=0.016).The two incidence peaks were in age groups 40-44 years and 75-79 years.Conclusion The overall incidence of cervical cancer in Tianjin was still stable during 2007-2013,and the disease mainly occurred in middle-aged and elderly population.More attention should be paid to the increased incidence of cervical cancer in rural area.

Objective To explore the trends and distribution of premature mortality caused by four main non-communicable diseases (NCDs) including cardiovascular and cerebrovascular diseases,cancer,chronic respiratory disease and diabetes in different sex and residential areas in Tianjin so as to provide basis for setting up prevention and control programs on premature mortality.Methods Population data on premature mortality in 1999-2015 were from the'Tianjin population based mortality surveillance system'maintained by Tianjin Centers for Disease Control and Prevention (CDC).Data related to permanent residents was from the Tianjin Municipal Public Security Bureau.Standardized premature mortality rates were calculated and adjusted for age and gender according to the ‘2000 world standard population'.Premature mortality probabilities were analyzed according to the methods recommended by WHO.Joinpoint regression and Cochran-Armitage trend methods were used to determine the significance of differences on the trends of mortality.Results From 1999 to 2015,the prematmre mortality appeared consistent (P＜0.001) declining in the above-said four diseases with the APC of probabilities as-2.92％,-1.13％,-9.51％ and-3.39％,respectively.The probabilities of premature mortality were all declining consistently in both men and women and in both urban and rural areas in Tianjin.From 1999 to 2015,the probabilities of the four main NCDs were between 19.67％ and 12.85％ (APC=-2.49％,P＜0.001),higher in women (from 17.02％ to 9.17％,APC=-3.84％,P＜0.001) than that in men (from 22.27％ to 16.47％,APC=-1.59％,P＜0.001),in urban (from 21.04％ to 12.34％,APC=-3.26％,P＜0.001) than that in rural areas (from 17.80％ to 13.54％,APC=-1.54％,P＜0.001).Conclusion Our findings suggested that premature mortality in Tianjin was decreasing during 1999-2015 but attention should still be called for on males and people living in the rural areas to further reducing the premature mortality.