Objective To examine the expression of CGRP in congenital pseudarthrosis of tibia(CPT) in order to find the pathogenesis of CPT.Methods Periosteum and bones from CPT patients were collected as experimental group.Immunohistochemistry stain was applied to determine the differences of the expression of CGRP in two groups.Results CGRP was located at vessel wall of periosteum and intracytoplasm of osteoblasts and osteoclasts in bones,its expression was significantly less in periosteum and bones of CPT than that in control group(P

ObjectiveTo investigate the feasibility of preventing tendon adhesion by using bFGF/ vitamin C composite biodegradable membrane.MethodsSixty Newzerland rabbits were divided into experimental and control groups randomly.After the animal model was established, the tendon autografts were encapsulated with the bFGF/vitamin C composite biodegradable membrane in experimental group, while no tendon autografts encapsulation in control.Three weeks after surgery, regular HE staining and AgNO3 staining were performed to observe the fibroblast nuclei and vitamin C.The quantity of collagen fibrils was measured by Luzex-F Image Analyzer.Eight weeks after surgery, the peritendinous adhesion and the maximum tensile load were analyzed.Results At 3 weeks after surgery, the numbers of vitamin C granules, fibroblast nuclei and collagen fibrils in the experimental group were significantly more than those in the control group(t = 11.78 ,P ＜0.001) .At 8 weeks after surgery, the peritendinous adhesion in the experimental group was significantly slighter than that in the control group(Z =3.922,P ＜0.005) ,and the maximum tensile load in the experimental group was significantly higher than that in the control group (t = 8.39, P ＜ 0.001) .ConclusionbFGF/vitamin C composite biodegradable membrane can stimulate the proliferation of fibroblasts and synthesis of collagen fibrils,improve the biomechanical property of tendon autografts and prevent the tendon adhesion.

Objective To investigate the clinical application of nasal-insertion type ileus-tube in the treatment of adhesive small intestinal obstruction. Methods A total of 221 patients with simple adhesive small intestinal obstruction, who were admitted to authors’ hospital during the period from January 2010 to Aug. 2014, were enrolled in this study. The patients were randomly divided into nasal-insertion type ileus-tube group (n=111) and nasogastric tube group (n=110). After the procedure, the patients were kept under close observation, focusing on the abdominal distention, gastrointestinal decompression amount, the recovery time of anal exhaustion and defecation, the vanishing time of intestinal air-liquid plane on erect abdominal X-ray film, etc. The cure rate, effective rate and transit-operation rate were calculated. The results were compared between the two groups. Results The tube placement operation was successfully performed in all patients. Compared with the nasogastric tube group, in the nasal-insertion type ileus-tube group the recovery time of abdominal distention, anal exhaustion and defecation and the vanishing time of intestinal air-liquid plane on erect abdominal X-ray film were obviously shorter, and the gastrointestinal decompression amount was larger. In the nasal-insertion type ileus-tube group the cure rate and effective rate were significantly increased, while the transit-operation rate was decreased; the differences between the two groups were statistically significant (P<0.05). Conclusion For the treatment of adhesive small intestinal obstruction, the placement of nasal-insertion type ileus-tube is effective and reliable. This technique can strikingly improve the clinical symptoms, therefore, it is worthy of promotion and application in clinical practice.

Abstract Tobacco use is not only harmful to adolescents physical and mental health, but is also closely related to future adults smoking prevalence, and interventions can delay the age at which adolescents take their first puff as much as possible. The article summarizes and analyzes the effectiveness of tobacco control interventions based on schools, communities or families, and a combination of multiple venues. It compares the characteristics of offline, online, and a combination of offline and online tobacco control interventions for adolescents,so as to provide references for the design and implementation of adolescent tobacco control interventions, and the effective, sustainable, and replicable adolescent tobacco control intervention models.

Objective: To explore the impact of household tobacco smoke exposure on adolescents attempted smoking behavior, so as to provide a reference for tobacco control policy formulation and evaluation. Methods: From September to November 2023, a stratified cluster random sampling method was employed to select 7 841 middle and high school students from 10 monitoring sites (districts/counties) in Beijing for a questionnaire survey. Rao-Scott Chi square test was used to assess differences in proportions across subgroups, and complex sampling design based multivariate Logistic regression analysis was conducted to explore the influence of parental smoking and secondhand smoke (SHS) exposure at home on adolescents attempted smoking behavior. Results: About 47.17% of adolescents reported to have at least one parent smoked, with 42.36% reported of having only the father smoked, 0.73% reported of having only the mother smoked, and 4.08% reported of having both parents smoked. About 34.66% of middle and high school students were reported SHS exposure at home in the past 7 days, with 10.98%, 4.79% and 18.89% reported SHS exposure for 1-2, 3-4 and 5-7 days. Compared to adolescents with non smoking parents, those with a smoking father or both smoking parents had higher rates of attempted smoking [ OR (95% CI )=1.45(1.06-1.98), 3.73(2.18-6.37), P < 0.05 ]. Compared to adolescents without SHS exposure at home in the past 7 days, those exposed for 3-4 or 5- 7 days had higher rates of attempted smoking [ OR (95% CI )=2.21(1.27- 3.84 ), 2.46(1.58-3.83), P <0.01]. Conclusions Household tobacco smoke exposure is associated with adolescent attempted smoking behavior. Parents should quit smoking and prohibit smoking at home to create a smoke free environment for adolescents.

Objective:To examine the trend of stroke disease burden and its main risk-attributable factors in China and regions with different Socio-Demographic Index (SDI) from 1990 to 2017.Methods:With 2017 Global Burden of Disease (GBD) data, years lived with disability (YLDs), years of life lost (YLLs) and disability-adjusted of life years (DALYs) were applied to describe the disease burden and major risk factors of stroke in China and different SDI regions from 1990 to 2017, and to analyze the changing trend of the disease burden and major risk factors of stroke.Results:From 1990 to 2017, the YLD crude rate, YLL crude rate and DALY crude rate for stroke in China showed an increasing trend and the rate of change was 126.5%, 14.6%, and 24.4%, respectively. In 2017, the YLD crude rate, YLL crude rate and DALY crude rate for stroke in China were 502.6 per 100 000, 2 633.1 per 100 000 and 3 135.7 per 100 000, respectively. Among them, the YLD crude rate, YLL crude rate, and DALY crude rate of stroke were the highest in the ≥70 age group, which were 2 617.2 per 100 000, 16 789.4 per 100 000 and 19 406.6 per 100 000, respectively. The YLD crude rate in male was 475.5 per 100 000, which was slightly lower than that of female (530.9 per 100 000), while the DALY crude rate and YLL crude rate for stroke were 3 657.1 per 100 000 and 3 181.7 per 100 000, respectively, which were significantly higher than that of female (2 591.8 per 100 000 and 2 060.9 per 100 000). Compared with regions with different SDI, the age standardized YLD rate, the age standardized YLL rate, the age standardized DALY rate in China were all at a high level. Among them, the age-standardized YLD rate increased from 286.2 per 100 000 to 374.5 per 100 000, with a rate of change of 30.9%; the age-standardized YLL rate decreased from 3 215.6 per 100 000 to 1 967.8 per 100 000, with a rate of change of -38.8%; the age-standardized DALY rate increased from 3 501.8 per 100 000 to 2 342.3 per 100 000, with a rate of change of -33.1%. The top five risk factors for stroke in China were hypertension, excessive sodium intake, insufficient fruit intake, insufficient cereal intake, and smoking in 1990 and 2017. High Body-Mass Index and Alcohol Use′s rankings rose from the 9th and 10th in 1990 to the 6th and 7th in 2017, respectively.Conclusion:The burden of stroke disease in China is at a high level, and hypertension is the primary risk factor.

Objective:To examine the trend of stroke disease burden and its main risk-attributable factors in China and regions with different Socio-Demographic Index (SDI) from 1990 to 2017.Methods:With 2017 Global Burden of Disease (GBD) data, years lived with disability (YLDs), years of life lost (YLLs) and disability-adjusted of life years (DALYs) were applied to describe the disease burden and major risk factors of stroke in China and different SDI regions from 1990 to 2017, and to analyze the changing trend of the disease burden and major risk factors of stroke.Results:From 1990 to 2017, the YLD crude rate, YLL crude rate and DALY crude rate for stroke in China showed an increasing trend and the rate of change was 126.5%, 14.6%, and 24.4%, respectively. In 2017, the YLD crude rate, YLL crude rate and DALY crude rate for stroke in China were 502.6 per 100 000, 2 633.1 per 100 000 and 3 135.7 per 100 000, respectively. Among them, the YLD crude rate, YLL crude rate, and DALY crude rate of stroke were the highest in the ≥70 age group, which were 2 617.2 per 100 000, 16 789.4 per 100 000 and 19 406.6 per 100 000, respectively. The YLD crude rate in male was 475.5 per 100 000, which was slightly lower than that of female (530.9 per 100 000), while the DALY crude rate and YLL crude rate for stroke were 3 657.1 per 100 000 and 3 181.7 per 100 000, respectively, which were significantly higher than that of female (2 591.8 per 100 000 and 2 060.9 per 100 000). Compared with regions with different SDI, the age standardized YLD rate, the age standardized YLL rate, the age standardized DALY rate in China were all at a high level. Among them, the age-standardized YLD rate increased from 286.2 per 100 000 to 374.5 per 100 000, with a rate of change of 30.9%; the age-standardized YLL rate decreased from 3 215.6 per 100 000 to 1 967.8 per 100 000, with a rate of change of -38.8%; the age-standardized DALY rate increased from 3 501.8 per 100 000 to 2 342.3 per 100 000, with a rate of change of -33.1%. The top five risk factors for stroke in China were hypertension, excessive sodium intake, insufficient fruit intake, insufficient cereal intake, and smoking in 1990 and 2017. High Body-Mass Index and Alcohol Use′s rankings rose from the 9th and 10th in 1990 to the 6th and 7th in 2017, respectively.Conclusion:The burden of stroke disease in China is at a high level, and hypertension is the primary risk factor.

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 for low back pain in China in 2013 and analyzed the change of it between 1990 and 2013. Methods: Data was from the Global Burden of Disease Study 2013 (GBD 2013). The burden of low back pain (LBP) among age groups, gender groups, provinces (excluding Taiwan China) groups was assessed by years lived with disability (YLD), including YLD, YLD rate, proportion of YLD due to LBP. The change of the YLD for LBP was analyzed between 1990 and 2013 by age-standardized YLD rate using the world standard population of 2000-2025 WHO. Results: In 2013, The YLD for LBP was 16 347 thousand (the leading cause of YLD in China), and the proportion of YLD in age group 30-59 years old was 54.6% (8 929/16 347) . The age-standardized rate in China was 1 072.6/100 000, and the rates in Guangdong (1 742.2/100 000) , Shanghai (1 227.8/100 000) and Beijing (1 136.6/100 000) were higher than in other provinces. The proportion of YLD due to LBP was 11.8%. LBP was the leading cause of YLD in China. Compared with 1990, the growth rates of age-standardized rate, proportion of YLD and YLD, were 5.6%, 25.5% and 72.1%, desperately. Conclusion Low back pain was the leading cause of YLD in China in 2013. Compared with 1990, the disease burden for low back pain increased rapidly.

Objective To analyze the death attributable to smoking and impact of life expectancy in China in 2013.Methods According to the characteristics of different diseases,we calculated the population attributable fractions of different diseases,death and impact of life expectancy which caused by smoking,using direct method (current smoking rate as exposure levels)and indirect method (smoking impact ratio as exposure levels),based on data from both programs of death surveillance and Chinese chronic disease risk factor surveillance of 2013.Results In 2013,smoking caused around 1.59 million deaths which accounted for 17.38％ of all deaths in China.Constituent ratio of death caused by smoking in males (23.66％) was much higher than that in females (8.30％).However,in urban areas (17.24％),it was slightly lower than that in rural areas (17.51％).Constituent ratio of death caused by smoking in the eastern regions appeared the lowest (16.81％),with western regions the highest (17.91％).In 2013,lung cancer,COPD and ischemia heart disease were the top three diseases causing deaths that related to smoking,but the top three population attributable fractions were lung cancer,COPD and nasopharyngeal carcinoma in China.In 2013,smoking caused a reduction of 2.04 years of life expectancy loss in China,with males in the western regions the highest (3.05 years).Conclusion Smoking is still an important public health problem in China.Tobacco-control-targeted programs in the heavily involved areas could reduce the number of deaths from related diseases that caused by smoking.