Aim To observe the adhesive process of the human gastric cancer cell line MKN1,and study the expression of integrin ?1;to investigate the mechanism of the inhibition of the adhesion process of MKN1 cells by destran sulfate(DS).Methods The MKN1 cells were cultured with DS or PBS,then stained with immunofluorescent cytochemistry and observed in fixed or living conditions with confocal laser scanning microscope.RT-PCR was used to analyze the cDNA expression of MKN1 cells.Results MKN1 cells adhered to culture dishes by the process of forming filopodia,changed into a flat shape,and then adhered to other cells to form a cell-monolayer.Integrin ?1 was intensively expressed in the cell membrane,where integrin ?1 formed clusters.DS inhibted the expression of integrin ?1 in cell membrane,and decreased the area of integrin ?1 clusters.DS-treated cells also tended to maintain a round shape by contracting the filopodia.In DS-containing culture dishes,some cells kept floating 4 hours after seeding.DS decreased the level of the cDNA expression of the adhered cells to 74% and of the floating cells to 38% of that of the cells in un-treated group,respectively.Conclusion The inhibition of the adhesion of MKN1 cells by DS was related to the suppression of the expression of integrin ?1.

OBJECTIVETo analyze and compare burden of disease caused by malignant tumor in China, 1990 and 2010.

METHODSThe indicators including prevalence, death, years of life lost (YLL), years lived with disability (YLD), and disability adjusted of life years (DALY) of malignant tumor from the results of Global Burden of Disease (GBD) 2010 were used to calculate the standardized prevalence rate, mortality rate, YLL rate, YLD rate and DALY rate with the 2010 national census data. The research described the prevalence, death, and burden of disease caused by malignant tumor and analyze the trend of these indicators in 1990 and 2010 in China.

RESULTSIn China from 1990 to 2010, the standardized prevalence rate of malignant tumor increased from 529.76/100 000 to 749.57/100 000 (increased by 41.49%); the standardized mortality rate decreased from 196.57/100 000 to 169.88/100 000 (decreased by 13.58%); the standardized DALY rate decreased from 5 206.56/100 000 to 4 150.86/100 000. In 2010, the top five standardized DALY rate of malignant tumor were lung cancer, liver cancer, gastric cancer, esophageal cancer, and colorectal cancer. Their standardized DALY rate were 892.21/100 000, 787.40/100 000, 521.36/100 000, 303.95/100 000, and 269.94/100 000, respectively. In all kind of malignant tumors, the burden of disease of lung cancer had the fastest-growing rate. The standardized mortality rate of lung cancer increased from 34.78/100 000 in 1990 to 41.09/100 000 in 2010; the standardized DALY rate increased from 830.77/100 000 in 1990 to 892.21/100 000 in 2010. The burden of disease of gastric cancer had the fastest-falling rate. The standardized mortality rate of gastric cancer decreased from 39.65/100 000 in 1990 to 23.79/100 000 in 2010; the standardized DALY rate decreased from 968.96/100 000 in 1990 to 521.36/100 000 in 2010.

CONCLUSIONThe burden of disease caused by malignant tumor in China remained at high levels in 2010. The top five burden of disease of malignant tumor were lung cancer, liver cancer, gastric cancer, esophageal cancer, and colorectal cancer. The burden of disease of lung cancer had the fastest-growing rate and gastric cancer had the fastest-falling rate from 1990 to 2010 in China. Prevention and control of malignant tumor was still difficult.

China ; Colorectal Neoplasms ; Cost of Illness ; Esophageal Neoplasms ; Humans ; Liver Neoplasms ; Lung Neoplasms ; Mortality ; Neoplasms ; Prevalence ; Quality-Adjusted Life Years ; Stomach Neoplasms

Objective: To investigate the current status, temporal trend and achieving Health China 2030 reduction target of probability of premature mortality caused by four main non-communicable diseases (NCDs) including cardiovascular and cerebrovascular diseases, tumour, diabetes, and chronic respiratory disease in China both at national and provincial level during 1990 to 2015. Methods: Using the results of Global Burden of Disease study 2015 (GBD 2015), according to the method of calculating premature mortality probability recommended by WHO, the current status and temporal trend by different gender from 1990 to 2015 were calculated, analyzed, and compared. Referring to " Health China 2030" target of reduction 30% of probability of premature mortality caused by major NCDs, we evaluated the difficulty of achieving the reduction target among provinces (not including Taiwan). Results: From 1990 to 2015, the probabilities of premature mortality in cardiovascular and cerebrovascular diseases, tumour, and chronic respiratory disease were all declined consistently for both men and women in China, the total of four main NCDs decreased from 30.69% to 18.54% with higher decreasing in women (from 25.97% to 12.40%) than that in men (from 34.94% to 24.19%). In 2015, the top five provinces in terms of probability of premature mortality caused by four main NCDs were Qinghai (28.81%), Tibet (25.88%), Guizhou (24.67%), Guangxi (23.56%), and Xinjiang (23.21%) in turn, while the top five provinces with the lowest probability were Shanghai (8.40%), Beijing (9.39%), Hong Kong (10.10%), Macao (10.31%), and Zhejiang (11.70%). If achieving the " Health China 2030" target, the probabilities of premature mortality in Qinghai and Tibet with the highest probability should decline to about 20.17%, and 18.12%, respectively in 2030, while 5.88%, and 6.57% in Shanghai and Beijing, respectively. From 1990 to 2015, the probability of premature mortality of four main NCDs declined by 2.00% a year on average, the top five provinces with the fastest decline were Beijing (3.48%), Shanghai (3.24%), Zhejiang (2.81%), Fujian (2.75%), and Guangdong (2.67%), and 11 provinces including these five provinces could achieve the " Health China 2030" target by the usual rate of decline, while other 22 provinces could not achieve the target, they need greater rate of decline in order to achieve the target. Conclusion From 1990 to 2015, the probabilities of premature mortality of four main NCDs were declined consistently in China both at national and provincial level, compared with women, the men had higher probabilities and declined slower, there were significant different in probabilities of premature mortality and their change speed among provinces. Based on the results from 1990 to 2015, there were about two thirds of the provinces, which the task of achieving the Health China 2030 target will be daunting.

Objective: To estimate the impact of risk factors control on non-communicable diseases (NCDs) mortality, life expectancy and the numbers of labor force lost in China in 2030. Methods: We used the results of China from Global Burden of Disease Study 2013, according to the correlation between death of NCDs and exposure of risk factors and the comparative risk assessment theory, to calculate population attributable fraction (PAF) and disaggregate deaths of NCDs into parts attributable and un-attributable. We used proportional change model to project risk factors exposure and un-attributable deaths of NCDs in 2030, then to get deaths of NCDs in 2030. Simulated scenarios according to the goals of global main NCDs risk factors control proposed by WHO were constructed to calculate the impact of risk factors control on NCDs death, life expectancy and the numbers of labor force lost. Results: If the risk factors exposure changed according to the trend of 1990 to 2013, compared to the numbers (8.499 million) and mortality rate (613.5/100 000) of NCDs in 2013, the death number (12.161 million) and mortality rate (859.2/100 000) would increase by 43.1% and 40.0% respectively in 2030, among which, ischemic stroke (increasing by 103.3% for death number and 98.8% for mortality rate) and ischemic heart disease (increasing by 85.0% for death number and 81.0% for mortality rate) would increase most quickly. If the risk factors get the goals in 2030, the NCDs deaths would reduce 2 631 thousands. If only one risk factor gets the goal, blood pressure (1 484 thousands NCDs deaths reduction), smoking (717 thousands reduction) and BMI (274 thousands reduction) would be the most important factors affecting NCDs death. Blood pressure control would have greater impact on ischemic heart disease (662 thousands reduction) and hemorrhagic stroke (449 thousands reduction). Smoking control would have the greatest effect on lung cancer (251 thousands reduction) and chronic obstructive pulmonary disease (201 thousands reduction). BMI control would have the greatest impact on ischemic heart disease (86 thousands reduction) and hypertensive heart disease (45 thousands reduction). If the risk factors exposure changed according to the trend of 1990 to 2013, in 2030, the life expectancy of Chinese population would reach to 79.0 years old, compared to 2013, increasing by 3.3 years old, the labor force at the age of 15-64 years old would loss 1.932 million. If the risk factors get the goals in 2030, life expectancy would increase to 81.7 years old and the number of labor force lost would decrease to 1.467 million. Blood pressure, smoking and BMI control would have much greater impact on life expectancy (4.9, 4.0 and 3.8 years old respectively) and labor force lost (630 thousands, 496 thousands and 440 thousands respectively). Conclusion Risk factors control would play an important role in reducing NCD death, improving life expectancy of residents and reducing loss of labor force. Among them, the control of blood pressure raising, smoking and BMI raising would have a greater contribution to the improvement of population health status.

Objective: To assess the disease burden attributable to household air pollution in 1990 and 2013 in China. Methods: Based on data from the Global Burden of Disease Study 2013 in China (GBD 2013), we used population attributable fractions (PAF) to analyze the burden of different diseases attributable to solid-fuel household pollution in 2013 in China(not inclnding HongKang, Macao, Taiwan). We compared PAF, mortality, and disability-adjusted life years (DALY) for diseases attributable to solid-fuel household pollution in 31 provinces in mainland China in 1990 and 2013, and stratified the burden by age group. The estimated world average population during 2000- 2025 was used to calculate age-standardized mortality and DALY rates. Results: In 2013, 14.9% of lower respiratory infections in children <5, 32.5% of chronic obstructive pulmonary disease (COPD), 12.0% of ischemic stroke, 14.2% of hemorrhagic stroke, 10.9% of ischemic heart disease, and 13.7% of lung cancer were attributable to solid-fuel household pollution. In addition, 807 000 deaths were attributable to solid-fuel household pollution, including 296 000 from COPD, 169 000 from hemorrhagic stroke, 152 000 from ischemic heart disease, 88 000 from ischemic stroke, 75 000 from lung cancer, and 28 000 from lower respiratory infections in children <5. The age-standardized mortality rate from solid-fuel household pollution decreased by 59.3% from 158.8/100 000 in 1990 to 64.6/100 000 in 2013. The age-standardized mortality rate from solid-fuel household pollution decreased in all 31 provinces, with the highest decline observed in Shanghai (96.3%), and lowest in Xinjiang (39.9%). In 2013, the age-standardized DALY rate from solid-fuel household pollution was highest in Guizhou (2 233.0/100 000) and lowest in Shanghai (27.0/100 000). The DALY rate was the highest for the >70 age group (7 006.0/100 000). Compared with 1990, the 2013 mortality rate and DALY rate from solid-fuel household pollution decreased in all age groups, with the highest decline observed in the <5 age group (91.9% and 91.8% , respectively). Conclusion Although the disease burden attributable to household air pollution decreased notably between 1990 and 2013, household pollution caused a high number of deaths and DALY loss in certain western provinces.

Aging is the process spontaneously occurred in living organisms. Cardiac fibrosis is a pathophysiological process of cardiac aging. Mangiferin is a wellknown C-glucoside xanthone in mango leaves with lots of beneficial properties. In this study, rat model of cardiac fibrosis was induced by injected with 150 mg/kg/d Dgalactose for 8 weeks. The age-related cardiac decline was estimated by detecting the relative weight of heart, the serum levels of cardiac injury indicators and the expression of hypertrophic biomakers. Cardiac oxidative stress and local inflammation were measured by detecting the levels of malondialdehyde, enzymatic antioxidant status and proinflammatory cytokines. Cardiac fibrosis was evaluated by observing collagen deposition via masson and sirius red staining, as well as by examining the expression of extracellular matrix proteins via Western blot analysis. The cardiac activity of profibrotic TGF-β1/p38/MK2 signaling pathway was assessed by measuring the expression of TGF-β1 and the phosphorylation levels of p38 and MK2. It was observed that mangiferin ameliorated D-galactose-induced cardiac aging, attenuated cardiac oxidative stress, inflammation and fibrosis, as well as inhibited the activation of TGF-β1/p38/MK2 signaling pathway. These results showed that mangiferin could ameliorate cardiac fibrosis in D-galactose-induced aging rats possibly via inhibiting TGF-β/p38/MK2 signaling pathway.

Aging is the process spontaneously occurred in living organisms. Cardiac fibrosis is a pathophysiological process of cardiac aging. Mangiferin is a wellknown C-glucoside xanthone in mango leaves with lots of beneficial properties. In this study, rat model of cardiac fibrosis was induced by injected with 150 mg/kg/d Dgalactose for 8 weeks. The age-related cardiac decline was estimated by detecting the relative weight of heart, the serum levels of cardiac injury indicators and the expression of hypertrophic biomakers. Cardiac oxidative stress and local inflammation were measured by detecting the levels of malondialdehyde, enzymatic antioxidant status and proinflammatory cytokines. Cardiac fibrosis was evaluated by observing collagen deposition via masson and sirius red staining, as well as by examining the expression of extracellular matrix proteins via Western blot analysis. The cardiac activity of profibrotic TGF-β1/p38/MK2 signaling pathway was assessed by measuring the expression of TGF-β1 and the phosphorylation levels of p38 and MK2. It was observed that mangiferin ameliorated D-galactose-induced cardiac aging, attenuated cardiac oxidative stress, inflammation and fibrosis, as well as inhibited the activation of TGF-β1/p38/MK2 signaling pathway. These results showed that mangiferin could ameliorate cardiac fibrosis in D-galactose-induced aging rats possibly via inhibiting TGF-β/p38/MK2 signaling pathway.

Objective To analyze the characteristics of life expectancy and influencing factors in Chinese population in different areas and provide scientific evidence for policy-making on disease managements,medical care and risk factor intervention.Methods Based on the national census data from National Bureau of Statistics and the death registration data from the National Health and Family Planning Commission,we used exponential model,under-report adjustment model and abbreviated life tables to estimate the life expectancy and influence on disease in Chinese population in 2013.Results The Chinese life expectancy was 75.8 years in 2013,1 year higher than that in 2010.The life expectancy in urban area was 77.4 years,while it was 75.1 years that in rural area with the gap between the rural area and urban area was 2.3 years.The life expectancy was 77.2 years in the eastern area,75.8 years in middle area and 73.5 years in western area,the gap between the east and west was 3.6 years.In 2013,the first 10 leading diseases causing the life expectancy lost were cerebrovascular disease,ischemic heart disease,chronic obstructive pulmonary disease,lung cancer,road injury,liver cancer,stomach cancer,hypertensive heart disease,lower respiratory infection,esophagus cancer,resulting in 7.97 years of life expectancy lost.Conclusion The life expectancy in Chinese has already reached a relative high level,while the gap between different areas still exists.Different policies on disease management,medical care and risk factor interventions targeting different areas are needed to increase the life expectancy and improve the quality of life.