Objective To estimate healthy life expectancy of residents aged 30 and above in Jianyang, Sichuan province, and comprehensively evaluate the health status of the population, so as to provide reference and basis for the formulation of health-related public policies. Methods The population data, death data and health status data of Jianyang city in 2018 were collected, and the self-rated health life expectancy and life expectancy without chronic diseases of residents aged 30 and above were calculated by Sullivan method, and their proportion in life expectancy was calculated. Results A total of 4 482 residents aged 30 years and above were included in Jinyang city, of whom 3 989 were self-rated healthy, accounting for 89.00% of self-rated health, and 1 988 were suffering from chronic diseases, with a chronic disease prevalence rate of 44.36%. In the age group of 30-64, the self-rated health life expectancy of women was significantly higher than that of men (P<0.05), and in the age group of 40-44, the life expectancy without chronic diseases of women was significantly lower than that of men (P<0.05), and the differences were not statistically significant when comparing different genders in other age groups (P>0.05). With the increase of age, the proportion of residents’ self-rated health and the proportion of life expectancy without chronic diseases in healthy life expectancy gradually declined. Conclusions The chronic disease has become the main factor affecting the health of middle-aged and elderly population, especially female population. It is suggested that active measures should be taken to deal with chronic diseases and the elderly health support system should be strengthened to improve healthy life expectancy of residents in Jianyang city.
Objective To observate the influencing factors on circuit life during continuous renal replacement therapy (CRRT) with regional citrate anticoagulation (RCA), so as to provide data support for further optimization of RCA anticoagulation strategy. MethodsPatients who underwent CRRT with RCA in West China Hospital of Sichuan University between March 2021 and April 2022 were retrospectively selected. Analyze the basic information of patients and the impact of relevant indicators before or within 12 hours of treatment on the circuit life. Results A total of 116 patients were included. Among the included patients, a total of 225 cases were treated with CRRT for 11 051.7 hours, the median circuit life was 57.0 (25.4, 72.0) h. 142 cases (63.1%) were terminated due to coagulation, the median circuit life was 30.3 (20.5, 52.8) h. The results of multivariate Cox regression analysis showed that pH value [hazard ratio (HR)=0.002, 95% confidence interval (CI) (0.0001, 0.127), P=0.003], the maximam postfilter ionized calcium [HR=0.039, 95%CI (0.004, 0.437), P=0.008], blood flow [HR=1.051, 95%CI (1.027, 1.075), P<0.001] and catheter dysfunction [HR=5.701, 95%CI (3.777, 8.605), P<0.001] were the four influential factors affected circuit life. Kaplan Meier survival curve showed that RCA had the best effect when the postfilter ionized calcium was in the range of 0.25 ~ 0.35 mmol/L. Conclusions During CRRT treatment of RCA, pH value, postfilter ionized calcium, blood flow and catheter function are the independent influencing factors of circuit life. The above parameters should be carefully monitored and optimized in the treatment process to minimize the risk of coagulation, prolong the circuit life and maintain the continuty of CRRT treatment. The postfilter ionized calcium was recommended to be maitained at 0.25-0.35mmol/L, pH value maintained above 7.38, blood flow no more than 145 mL/min and catheter maitained patency to ensure the adequate anticoagulation.
Objective To analyze the death cause of residents in Zigong from 1985 to 2009, so as to provide the government with scientific information of health strategies, and disease prevention and control. Methods The death surveillance data in Zigong residents from 1985 to 2009 were collected, and the indexes such as all death mortality rate, infant mortality rate, maternal mortality rate, disease-specific mortality rate, age-specific mortality rate, and life expectancy were analyzed. Results The all death mortality rate had fluctuation of plus or minus 6‰, and the male mortality rate was higher than the female (χ2=8 059.769, P=0.000). The six main influencing factors of the death of Zigong residents were as follows: respiratory system diseases, circulatory system diseases, tumour, injury and poisoning regarded as external cause diseases, digestive system diseases, and infectious diseases and parasitic diseases. The mortality rates of different districts were statistically different (χ2=1 643.926, P=0.000), and Fushun County was the highest among them after standardization. The curve of mortality rate in different sex and age groups was changed alike letter “U”. The mortality rate was ascending with the age in the group of over 15 years old, the ascending trend was more evident especially after 50 years old. The infant mortality declined steadily and was well controlled. The maternal mortality declined obviously. The average life expectancy for the whole city was 74.72, which showed an ascending trend. Conclusion The chronic diseases are the main death cause of residents in Zigong. The prevention and controlling of acute infectious diseases and parasitic diseases should be persistently performed for declining both incidence rate and mortality rate. The Zigong city is gradually stepping into aging society, which requires the great development of senior work.
ObjectiveTo analyze the disease burden and development trend of non-Hodgkin lymphoma (NHL) in China from 1990 to 2019. MethodsThe changes of incidence, mortality, disability-adjusted life years (DALY) and their corresponding age-normalization rates for NHL were analyzed by using the 2019 Global Burden of Disease Database. Regression analysis was performed by Joinpoint software to calculate annual percentage change (APC) and average annual percentage change (AAPC) of standardized morbidity, standardized mortality, standardized DALY rate to reflect the change trend of disease burden. And the results were compared with global data. ResultsFrom 1990 to 2019, the disease burden of NHL in China showed an overall increasing trend. Compared with 2019, the standard incidence rate, standard mortality rate and standard DALY rate of NHL in China increased by 144.72%, 27.17% and 15.61%, respectively. The annual rates of change were 3.12%, 0.80% and 0.51%, respectively. There were gender and age differences in disease burden. The burden of disease increased with age, and the burden of disease was higher in males than in females. ConclusionThe disease burden of NHL in China shows an increasing trend from 1990 to 2019. With the development of diagnosis and treatment options, the disease burden has decreased in recent years, but it is still higher than the global level. There is still a need to strengthen research on its pathogenesis and treatment options, and to actively intervene in high-risk groups to reduce the disease burden of NHL.
目的 评估中医药临床研究是否与我国主要疾病负担相关。 方法 首先从1999年－2004年出版的13种中医、中西医结合杂志中手工检索出随机对照试验（RCT），并提取出杂志名称、出版年限、治疗的疾病类别及样本含量等数据。然后采用死亡率和伤残调整寿命年（DALY）作为衡量标准，统计2002年我国疾病负担前30位病因的RCT数量，采用秩相关分析这些疾病负担与发表的中医药RCT及其受试者数量的关系。 结果 最终确认7 422个RCT，约38%的RCT来自于3种国家级杂志。这些RCT覆盖了我国疾病负担中的主要病种，其中4 280个RCT（57.7%）研究前30位病因合并产生的42个病种，只有3个病种（7%）没有任何RCT研究。采用DALY得到的相关系数分别是0.108（P=0.569）、0.092（P=0.628），通过死亡率产生的相关系数分别是0.453（P=0.012）、0.536（P=0.002）。 结论 中医药RCT与采用死亡率衡量的疾病负担明显相关，但采用DALY分析却未发现二者存在相关性。中医药临床研究可能更注重死亡率高的病种，一定程度上忽略了DALY衡量的疾病负担。
ObjectiveTo analyze the trend of disease burden of colorectal cancer (CRC) in China from 1990 to 2019.MethodsData was obtained from Global Burden of Disease Study 2019 (GBD 2019). Incidence, mortality, disability-adjusted life year (DALY), years of life lost (YLL), years lived with disability (YLD), and their corresponding standardized rate and annual average percentage change (AAPC) were used to describe the changes of disease burden of colorectal cancer in Chinese population between 1990 and 2019.ResultsCompared with 1990, the number of new cases, standardized incidence, the number of deaths and standardized mortality of CRC in China in 2019 increased by 474.03%, 144.01%, 230.14%, and 36.15%, respectively. The standardized mortality and standardized incidence of CRC in China had reached and gradually exceeded the global level since 2010. From 1990 to 2019, the overall standard incidence (AAPC=3.6%, P<0.05), standard mortality rate (AAPC=1.4%, P<0.05), and the standard DALY rate (AAPC=1.2%, P<0.05) of CRC in China showed an increasing trend. The incidence, mortality and DALY rates of males were higher than those of females, and gradually increased with age. Compared with 1990, the DALY, YLL, and YLD of CRC in 2019 increased by 134.3%, 127.69%, and 445.00%, and their corresponding standardized rates increased by 30.53%, 27.03%, and 187.29%, respectively, showing an overall upward trend.ConclusionsFrom 1990 to 2019, the standardized incidence rate and standardized mortality rate of colorectal cancer in China have had a continuously increasing trend, and males and the elderly are high-risk groups. To reduce the burden of colorectal cancer in China, effective measures should be taken for prevention and management.
Objective To insure early detection and hence efficient prevention of allograft rejection in transplanted heart, investigate possible applications of NAD(P)H fluorescence components analysis at the level of living cardiac cells to propose new approaches for diagnosis of rejection. Methods NAD(P)H was studied for noninvasive fluorescent probing of the mitochondrial function. Human cardiomyocyte were isolated from one additional endomyocardial biopsy (EMB) of 14 pediatric patients with heart ransplantation. Rat cardiomyocyte (n=5, 13-14 week old) were also isolated by the same approach for human myocytes. Autofluorescence(AF) was recorded in living cardiomyocytes following excitation with 375 nm UVlight and detection by spectrallyresolved time correlated single photon counting (TCSPC), based on the simultaneous measurement of the fluorescence spectra and lifetimes. Rat cardiac cells were divided into four groups: normoxic condition, normoxia with Rotenone, ischemic condition and ischemia with Rotenone. Comparison of cardiomyocyte AF between human and rat; compared kinetics of rat cardiomyocytes AF in normoxic conditions to ischemiamimicking ones, induced at physiological temperatures by reducing cell pH and oxygen content; comparison of cardiomyocyte AF dynamic changes in transplanted pediatric patients presenting either no rejection (R0) or mild rejection (R1). Results We have achieved appropriate isolation of living cardiomyocytes from human biopsies, as well as from rat cardiac tissues and determined their AF. At least a 3-exponential decay with 0.5-0.7ns, 1.9-2.4 ns and 9.0-15.0 ns lifetime pools is necessary to describe human cardiomyocyte AF within 420560 nm spectral range. Rat cardiomyocyte steadystate AF in ischemiamimicking condition was significantly increased when compared normoxic ones (Plt;0.05); application of Rotenone induced a significant increase in AF intensity in ischemic and normoxic condition, however no significant difference between the two groups (Plt;0.05).Human cardiomyocyte AF was found significantly lower in comparison to experimental rat model in the same condition(Plt;0.05). A correlation between changes in steadystate NAD(P)H fluorescence and rejection grades was found when comparison of R1 to R0. R1 showed significantly increased fluorescence intensity (Plt;0.05), without change in the spectra shape, results can be comparable to the effect of ischemiamimic conditions. Conclusion Our studies clearly demonstrated that spectrallyresolved fluorescence spectral analysis coupled to fluorescence lifetime are high sensitive approaches to examine mitochondrial metabolic oxidative state directly in living human cardiomyocytes with good reproducibility. Human cardiomyocytes are more metabolically active than the rat ones, while this activity (and thus ATP production) seems lowered during rejection process. In perspective, the advantage of this method is the possibility of its combination to multiphoton confocal microscopy, which can result in the adaptation of this approach directly to tissue biopsy, as well as in vivo directly via cardiac catheterization without the necessity of cell isolation. This approach provides promising new tool for clinical diagnosis and treatment of allograft rejection, and will enhance our knowledge about cardiomyocyte oxidative metabolism and/or its dysfunction at a cellular level.
In order to evaluate the safety performance of self-expandable NiTi alloy stents systematically, the dynamic safety factor drawn up by International Organization for Standardization, was used to quantitatively reflect the safety performance of stents. Based on the constitutive model of super-elastic memory alloy material in Abaqus and uniaxial tensile test data of NiTi alloy tube, finite element method and experiments on accelerated fatigue life were carried out to simulate the self-expansion process and the shape change process under the action of high and low blood pressure for three L-type stents of Φ8×30 mm, Φ10×30 mm, Φ12×30 mm. By analyzing the changes of stress and strain of self-expanding NiTi alloy stent, the maximum stress and strain, stress concentration position, fatigue strength and possible failure modes were studied, thus the dynamic safety factor of stent was calculated. The results showed that the maximum stress and plastic strain of the stent increased with the increase of grip pressure, but the maximum stress and strain distribution area of the stent had no significant change, which were all concentrated in the inner arc between the support and the connector. The dynamic safety factors of the three stents were 1.31, 1.23 and 1.14, respectively, which indicates that the three stents have better safety and reliability, and can meet the fatigue life requirements of more than 10 years, and safety performance of the three stents decreases with the increase of stent’s original diameter.
Objective To analyze the causes of injury-related deaths of permanent residents in Zigong city, so as to provide scientific references for the prevention and control of injury deaths and for putting forward to relevant health policies as well. Methods Based on the death surveillance data of Zigong from 2001 to 2009, following indicators were analyzed, such as cause specific mortality, age specific mortality and potential years of life lost (PYLL). Results An accumulative total of 10 957 people died of injury from 2001 to 2009, and the crude mortality was 38.13/100 thousands, while the standardized mortality was 36.07/100 thousands. The highest mortality was at the age of more than 65 years of age. The first six injury death causes were as follows: drowning, transport accidents except motor vehicle, suicide, motor vehicle accidents, accidental falling and accidental poisoning. The PYLL of injury death was 334 325.50 person year, APYLL was 34.67 year, and the PYLL rate was 11.63‰ which was higher in male than that of female. Conclusion The epidemiological analysis of injury-related deaths shows an ascending trend, which is the main reason resulting in the loss of residents’ life. Injury has become one of the most serious problems of public health, and it should be prevented and controlled by formulating effective measures and strategies aiming at the injury death spectrum and the target population of Zigong city.
目的:应用心肌自发荧光(AF)研究心肌线粒体氧化代谢状态,监测线粒体功能改变的早期信号。方法:烟酰胺腺嘌呤(磷酸)二核苷酸［NAD(P)H］作为荧光探针,用光谱分辨的时间相关单光子计数(TCSPC)记录375nm紫外激光激发的心肌AF光谱和荧光寿命,测试影响线粒体呼吸时AF动态衰减。结果:在420~560nm光谱区域,至少需用3个荧光寿命池0.4~0.7ns,1.2~1.9ns和8.0~13.0ns描述细胞AF。线粒体呼吸阻断剂鱼藤酮可显著增加AF强度,缩短平均荧光寿命。氧化磷酸化解偶联剂二硝基酚可显著降低AF强度,在520nm处增宽荧光光谱,延长平均荧光寿命。这些结果和NADH荧光动力学离体实验(in vitro)有可比性。结论:光谱分辨的荧光寿命技术测定心肌NAD(P)H荧光有很好的重复性,在细胞水平上增加了心肌氧化代谢或线粒体功能障碍的知识,为临床诊断和治疗线粒体功能障碍开拓了新视野。