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Psychosocial Stress Modifies the Acute cardiac health Effects of Traffic-Related Air Pollution

Environment & health 2024年第1期2卷 11-22页

作者： Tongjun Guo Wanzhou Wang Xi Chen Huaqi Guo Kai Wang Yating Ma Hongyan Deng Xianggui Li Anqi Shan Qian Wu Yaoyan Li Hongyu Li Qisijing Liu Juan Chen Yang Lan Jian Lei Furong Deng Zhiwei Sun Xinbiao Guo Shaowei Wu Yan Wang Naijun Tang Department of Occupational and Environmental health Sciences School of Public HealthPeking UniversityBeijing 100191China Department of Occupational and Environmental health Tianjin Key Laboratory of EnvironmentNutrition and Public HealthSchool of Public HealthTianjin Medical UniversityTianjin 300070China Department of Respiratory and Critical Care Medicine The Ninth People’s Hospital of Shanghai Jiao Tong University School of MedicineShanghai 200025China Department of Occupational and Environmental health School of Public HealthXi’an Jiaotong University Health Science CenterXi’anShaanxi 710049China Key Laboratory of Trace Elements and Endemic Diseases in Ministry of health Xi’anShaanxi 710049China Key Laboratory for Disease Prevention and Control and health Promotion of Shaanxi Province Xi’anShaanxi 710049China Institute of Social Psychology School of Humanities and Social SciencesXi’an Jiaotong UniversityXi’anShaanxi 710049China Qinglongqiao Community health Service Centre Beijing 100091China Key Laboratory of Environment and Genes Related to Diseases(Xi’an Jiaotong University) Ministry of EducationXi’an 710061China School of Public health Shanghai Jiao Tong University School of MedicineShanghai 200025China Department of HAI Management Tianjin Huanhu HospitalTianjin 300060China Office for National Clinical Research Center for Geriatric Diseases Beijing HospitalNational Center of GerontologyInstitute of Geriatric MedicineChinese Academy of Medical SciencesBeijing 100005China Research Institute of Public health School of MedicineNankai University300071 TianjinChina Department of Toxicology and Sanitary Chemistry School of Public HealthCapital Medical UniversityBeijing 100069China Beijing Key Laboratory of Environmental Toxicology Capital Medical UniversityBeijing 100069China The Ninth People’s Hospital of Shanghai Jiao Tong University School of Medicine Shanghai 200011China

Previous studies have shown that exposure to black carbon(BC,a tracer of traffic-related air pollution)and psychosocial stress are both associated with adverse cardiac effects,but whether psychosocial stress could modify the cardiac effects of BC is *** investigate the potential modifying effect of psychosocial stress on the associations between acute exposure to BC and typical cardiac health variables,real-time personal 24 h measurements were conducted in a repeated-measure study among adults with elevated blood pressure(high-risk group)and a panel study among normal adults(low-risk group)in *** cardiac health variables included ST-segment depression events,heart rate,and heart rate variability(HRV)*** Stress Scale,State Anxiety Inventory and Self-rating Depression Scale were used to assess the recent psychosocial stress status of the participants,and a composite stress index was established based on these *** linear mixed-effects model was used to analyze the associations between BC exposure and cardiac health variables and potential effect modification by psychosocial stress.A total of 9724 h measurements among 97 participants in the repeated-measure study and 20224 h measurements among 87 participants in the panel study were included in the final *** BC exposure was significantly associated with increased ST-segment depression events and heart rate and decreases in HRV in both *** marginal effects of acute BC exposure on most cardiac health variables generally tended to be amplified under higher vs low levels of psychosocial stress in both studies,with the composite stress index apparently modifying the associations of BC exposure with most ST-segment depression events and HRV *** findings suggest that psychosocial stress may increase the participants’cardiac susceptibility to BC exposure,which could be helpful for the identification of susceptible individuals in the context of traff

关键词： Air pollution Black carbon cardiac health Effect modification Psychosocial stress

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Prediction of left ventricle ejection fraction from HRV in diabetics and cardiac diseased subjects:A mathematical model approach

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Medicine in Novel Technology and Devices 2024年第3期23卷 98-103页

作者： Ulka Shirole Manjusha Joshi A.C.Patil College of Engineering Navi MumbaiIndia Amity University MumbaiIndia

Heart Rate variability(HRV)is the variation between beat-to-beat intervals in a consecutive *** provides enormous information about cardiac *** and echocardiography(2D echo)are the two major techniques used by medical practitioners to diagnose cardiac *** 2D echo provides more accurate results as compared to electrocardiography but costs ten times *** research provides low-cost solution for cardiac health diagnosis to the level of 2D echo derived from the *** and the 2D echo data of the same cohort are collected from 15 diabetics and 15 cardiac-diseased *** this research,we found a correlation between significant HRV parameters and 2D Echo *** correlation is obtained between LF/HF(low-frequency power to high-frequency power ratio),the HRV parameter,and LVEF(left ventricle ejection fraction),the 2D echo *** derived various mathematical models,to predict the LVEF,from LF/HF for both cardiac diseased and diabetics *** combined best-fit model is obtained using nonlinear regression with the goodness of fit,R^(2)=94.54%.

关键词： Left ventricle ejection fraction Heart rate variability Autonomous nervous system cardiac health Diabetes

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