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Jiang Y, Liu P, Li H, Fan D, Huang Y, Zhou M, Yang T. A novel theranostic strategy for myocardial infarction through neutralization of endogenous SO 2 using an endoplasmic reticulum-targeted fluorescent probe. Eur J Med Chem 2024; 277:116778. [PMID: 39151274 DOI: 10.1016/j.ejmech.2024.116778] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2024] [Revised: 08/12/2024] [Accepted: 08/12/2024] [Indexed: 08/19/2024]
Abstract
Myocardial infarction (MI), one of the leading causes of death worldwide, urgently needs further understanding of the pathological process and effective therapies. SO2 in endoplasmic reticulum in several cardiovascular diseases has been reported to be particularly important. However, the role of endogenous SO2 in endoplasmic reticulum in treating myocardial infarction is still ambiguous and needs to be elucidated. Herein, we developed TPA-HI-SO2 as the first endoplasmic reticulum-targeting fluorescent agent for specific imaging and detection of sulfur dioxide derivatives both in vitro and in vivo. TPA-HI-SO2 shows a highly sensitive and selective response to SO2 derivatives over other anions in aqueous solution with a satisfactory response time and detection limit. Furthermore, TPA-HI-SO2 decreased the SO2 concentration in H9C2 cells treated with H2O2 and in an MI mouse model. Most importantly, TPA-HI-SO2 protects H9C2 cells from H2O2-induced apoptosis and obviously protects against myocardial infarction in vivo through neutralization of endogenous SO2. Taken together, we developed the first ER-targeting ratiometric fluorescent probe for endogenous SO2 with excellent biocompatibility, high selectivity and sensitivity in this paper. More importantly, we demonstrated an obvious increase of the endogenous SO2 concentration in a myocardial infarction mouse model for the first time, which suggests that neutralization of endogenous SO2 in endoplasmic reticulum could be a promising therapeutic strategy for myocardial infarction.
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Affiliation(s)
- Yunhan Jiang
- Department of Cardiovascular Surgery, and Laboratory of Human Diseases and Immunotherapies, West China Hospital, Sichuan University, Chengdu, 610041, China; Institute of Immunology and Inflammation, Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Pingxian Liu
- Department of Cardiovascular Surgery, and Laboratory of Human Diseases and Immunotherapies, West China Hospital, Sichuan University, Chengdu, 610041, China; Institute of Immunology and Inflammation, Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Huidong Li
- Research Center for Advanced Computation, School of Science, Xihua University, Chengdu, 610041, China
| | - Dongmei Fan
- Department of Cardiovascular Surgery, and Laboratory of Human Diseases and Immunotherapies, West China Hospital, Sichuan University, Chengdu, 610041, China; Institute of Immunology and Inflammation, Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Yukun Huang
- School of Food and Bioengineering, Food Microbiology Key Laboratory of Sichuan Province, Xihua University, Chengdu, 610039, China
| | - Meng Zhou
- Engineering Research Center for the Development and Application of Ethnic Medicine and TCM (Ministry of Education), Guizhou Medical University, Guiyang, 550004, China
| | - Tao Yang
- Department of Cardiovascular Surgery, and Laboratory of Human Diseases and Immunotherapies, West China Hospital, Sichuan University, Chengdu, 610041, China; Institute of Immunology and Inflammation, Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu, 610041, China.
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Jiang Y, Wang J, Zheng X, Du J. Plasma Endogenous Sulfur Dioxide: A Novel Biomarker to Predict Acute Kidney Injury in Critically Ill Patients. Int J Gen Med 2021; 14:2127-2136. [PMID: 34093033 PMCID: PMC8169086 DOI: 10.2147/ijgm.s312058] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2021] [Accepted: 05/17/2021] [Indexed: 12/31/2022] Open
Abstract
Purpose Sulfur dioxide (SO2) is a novel gaseous signaling molecule that plays an important role in inflammation, which contributes the pathogenesis of acute kidney injury (AKI). The aim of this study was to explore the predictive value of plasma SO2 for AKI in high-risk patients. Patients and Methods A prospective cohort of 167 patients who underwent major noncardiac surgery was enrolled in the study. Plasma SO2, urine neutrophil gelatinase-associated lipocalin (NGAL), tissue inhibitor of metalloproteinase-2 (TIMP-2), and insulin-like growth factor-binding protein 7 (IGFBP7) levels were detected immediately after the operation. The primary endpoint was new-onset AKI within 72 h after admission. The ability of biomarkers including SO2 and a clinical risk model to predict AKI was compared by receiver operator characteristic (ROC) curve analysis and decision curve analysis (DCA), additional contributions were evaluated by integrated discrimination improvement (IDI) and net reclassification improvement (NRI) analyses. Results A total of 61 (36.5%) patients developed AKI within 72 h of surgery. Compared to NGAL and [TIMP-2]·[IGFBP7], SO2 showed better predictive ability for new-onset AKI with an area under the ROC curve of 0.771 (95% confidence interval: 0.700–0.832, p<0.001). The improvement in predictive value by including SO2 in the clinical risk model was supported by NRI (0.28; P=0.04) and IDI (0.15; P<0.001) analyses. The net benefit of the combination of SO2 and clinical variables was the max in DCA. Conclusion Plasma SO2 shows a useful value for predicting new-onset AKI, and improved AKI prediction based on clinical variables, which can guide the implementation of preventive measures for high-risk patients.
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Affiliation(s)
- Yijia Jiang
- Department of Surgical Intensive Critical Unit, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, People's Republic of China
| | - Jingyi Wang
- Department of Surgical Intensive Critical Unit, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, People's Republic of China
| | - Xi Zheng
- Department of Surgical Intensive Critical Unit, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, People's Republic of China
| | - Jiantong Du
- Department of Ophthalmology, Peking University First Hospital, Beijing, People's Republic of China
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Lee DH, Kim SH, Kang SH, Kwon OK, Park JJ, Yoon CH, Cho YS, Heo J, Yi SM, Youn TJ, Chae IH. Personal exposure to fine particulate air pollutants impacts blood pressure and heart rate variability. Sci Rep 2020; 10:16538. [PMID: 33024194 PMCID: PMC7538889 DOI: 10.1038/s41598-020-73205-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2020] [Accepted: 09/02/2020] [Indexed: 11/09/2022] Open
Abstract
Air pollution has increasingly been recognized as a major healthcare concern. Air pollution, particularly fine particulate matter (≤ 2.5 μm in aerodynamic diameter [PM2.5]) has demonstrated an increase in adverse cardiovascular events. This study aimed to assess the cardiovascular response to personal exposure to different levels of PM2.5. This prospective cohort study enrolled healthy volunteers aged ≥ 18 years with no cardiovascular disease. Study subjects carried personal exposure monitor of PM2.5, digital thermo-hygrometer for temperature and humidity, 24-h blood pressure monitor, and continuous electrocardiogram monitor. Measurements were repeated twice with an interval of 6-12 months. Statistical models consisted of generalized estimation equations to various repeated measures of each subject. A total of 22 subjects were enrolled in this study between July 2018 and January 2019. Measurement was performed twice in all participants, and a total of 36 data were collected except for insufficient data collection. The mean age of the study population was 41.6 years, and 95% of the subjects were females. No study subjects had hypertension or other cardiovascular diseases. The average systolic blood pressure increased with higher PM2.5 levels with marginal significance (0.22 mmHg [95% confidential intervals - 0.04 to 0.48 mmHg] per 10 μg/m3 of PM2.5). All parameters for heart rate variability significantly decreased with a higher level of PM2.5. In this study, we measured individual personal exposure to PM2.5 by using a portable device. We found that 24-h exposure to high levels of PM2.5 was associated with a significant decrease in heart rate variability, suggesting impaired autonomous nervous function.
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Affiliation(s)
- Dong-Hoon Lee
- Department of Internal Medicine, Cardiovascular Center, Seoul National University Bundang Hospital, 82, Gumi-Ro 173 Beon-Gil, Bundang-Gu, Seongnam-Si, Gyeonggi-Do, South Korea.,Department of Internal Medicine, Seoul National University, Seoul, South Korea
| | - Sun-Hwa Kim
- Department of Internal Medicine, Cardiovascular Center, Seoul National University Bundang Hospital, 82, Gumi-Ro 173 Beon-Gil, Bundang-Gu, Seongnam-Si, Gyeonggi-Do, South Korea
| | - Si-Hyuck Kang
- Department of Internal Medicine, Cardiovascular Center, Seoul National University Bundang Hospital, 82, Gumi-Ro 173 Beon-Gil, Bundang-Gu, Seongnam-Si, Gyeonggi-Do, South Korea. .,Department of Internal Medicine, Seoul National University, Seoul, South Korea.
| | - Oh Kyung Kwon
- Department of Internal Medicine, Cardiovascular Center, Seoul National University Bundang Hospital, 82, Gumi-Ro 173 Beon-Gil, Bundang-Gu, Seongnam-Si, Gyeonggi-Do, South Korea.,Department of Internal Medicine, Seoul National University, Seoul, South Korea
| | - Jin-Joo Park
- Department of Internal Medicine, Cardiovascular Center, Seoul National University Bundang Hospital, 82, Gumi-Ro 173 Beon-Gil, Bundang-Gu, Seongnam-Si, Gyeonggi-Do, South Korea.,Department of Internal Medicine, Seoul National University, Seoul, South Korea
| | - Chang-Hwan Yoon
- Department of Internal Medicine, Cardiovascular Center, Seoul National University Bundang Hospital, 82, Gumi-Ro 173 Beon-Gil, Bundang-Gu, Seongnam-Si, Gyeonggi-Do, South Korea.,Department of Internal Medicine, Seoul National University, Seoul, South Korea
| | - Young-Seok Cho
- Department of Internal Medicine, Cardiovascular Center, Seoul National University Bundang Hospital, 82, Gumi-Ro 173 Beon-Gil, Bundang-Gu, Seongnam-Si, Gyeonggi-Do, South Korea.,Department of Internal Medicine, Seoul National University, Seoul, South Korea
| | - Jongbae Heo
- Busan Development Institute, Busan, South Korea
| | - Seung-Muk Yi
- Department of Environmental Health and Institute of Health and Environment, Graduate School of Public Health, Seoul National University, Seoul, South Korea
| | - Tae-Jin Youn
- Department of Internal Medicine, Cardiovascular Center, Seoul National University Bundang Hospital, 82, Gumi-Ro 173 Beon-Gil, Bundang-Gu, Seongnam-Si, Gyeonggi-Do, South Korea.,Department of Internal Medicine, Seoul National University, Seoul, South Korea
| | - In-Ho Chae
- Department of Internal Medicine, Cardiovascular Center, Seoul National University Bundang Hospital, 82, Gumi-Ro 173 Beon-Gil, Bundang-Gu, Seongnam-Si, Gyeonggi-Do, South Korea.,Department of Internal Medicine, Seoul National University, Seoul, South Korea
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Leng J, Peruluswami P, Bari S, Gaur S, Radparvar F, Parvez F, Chen Y, Flores C, Gany F. South Asian Health: Inflammation, Infection, Exposure, and the Human Microbiome. J Immigr Minor Health 2019; 21:26-36. [PMID: 28952002 PMCID: PMC5871532 DOI: 10.1007/s10903-017-0652-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
This paper presents the results of the literature review conducted for the working group topic on inflammation, infection, exposure, and the human microbiome. Infection and chronic inflammation can elevate risk for cardiovascular disease and cancer. Environmental exposures common among South Asian (SA) subgroups, such as arsenic exposure among Bangladeshis and particulate matter air pollution among taxi drivers, also pose risks. This review explores the effects of exposure to arsenic and particulate matter, as well as other infections common among SAs, including human papillomavirus (HPV) and hepatitis B/C infection. Emerging research on the human microbiome, and the effect of microbiome changes on obesity and diabetes risk among SAs are also explored.
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Affiliation(s)
- Jennifer Leng
- Department of Psychiatry and Behavioral Sciences, Immigrant Health and Cancer Disparities Service, Memorial Sloan Kettering Cancer Center, 485 Lexington Avenue, 2nd Floor, New York, NY, 10017, USA
- Department of Medicine, Memorial Sloan Kettering Cancer Center, 1275 York Avenue, New York, NY, USA
- Department of Healthcare Policy and Research, Weill Cornell Medical College, 1300 York Avenue, New York, NY, USA
| | - Ponni Peruluswami
- Department of Medicine, Icahn School of Medicine at the Mount Sinai Medical Center, 1468 Madison Avenue, New York, NY, USA
| | - Sehrish Bari
- The Earth Institute, Columbia University, 2910 Broadway, New York, NY, USA
| | - Sunanda Gaur
- Robert Wood Johnson Medical School, South Asian Total Health Initiative, Rutgers School of Public Health, Rutgers, The State University of New Jersey, 1 Robert Wood Johnson Place, New Brunswick, NJ, USA
| | - Farshid Radparvar
- Cardiology Department, Queens Hospital Center, 82-68 164th Street, Jamaica, New York, NY, USA
| | - Faruque Parvez
- Department of Environmental Health Sciences, Columbia University, 722 W 168th Street, New York, NY, USA
| | - Yu Chen
- Department of Population Health, Department of Environmental Medicine, New York University School of Medicine, 550 1st Avenue, New York, NY, USA
| | - Cristina Flores
- The Warren Alpert Medical School, The Brown Human Rights Asylum Clinic (BHRAC), Brown University, 222 Richmond Street, Providence, RI, USA
| | - Francesca Gany
- Department of Psychiatry and Behavioral Sciences, Immigrant Health and Cancer Disparities Service, Memorial Sloan Kettering Cancer Center, 485 Lexington Avenue, 2nd Floor, New York, NY, 10017, USA.
- Department of Medicine, Memorial Sloan Kettering Cancer Center, 1275 York Avenue, New York, NY, USA.
- Department of Healthcare Policy and Research, Weill Cornell Medical College, 1300 York Avenue, New York, NY, USA.
- Department of Medicine, Weill Cornell Medical College, 1300 York Avenue, New York, NY, USA.
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Step On It! Workplace Cardiovascular Risk Assessment of New York City Yellow Taxi Drivers. J Immigr Minor Health 2017; 18:118-34. [PMID: 25680879 DOI: 10.1007/s10903-015-0170-8] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
Multiple factors associated with taxi driving can increase the risk of cardiovascular disease (CVD) in taxi drivers. This paper describes the results of Step On It!, which assessed CVD risk factors among New York City taxi drivers at John F. Kennedy International Airport. Drivers completed an intake questionnaire and free screenings for blood pressure, glucose and body mass index (BMI). 466 drivers participated. 9 % had random plasma glucose values >200 mg/dl. 77 % had elevated BMIs. Immigrants who lived in the US for >10 years had 2.5 times the odds (CI 1.1-5.9) of having high blood pressure compared to newer immigrants. Abnormalities documented in this study were significant, especially for immigrants with greater duration of residence in the US, and underscore the potential for elevated CVD risk in this vulnerable population, and the need to address this risk through frameworks that utilize multiple levels of intervention.
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Effects of Fine Particulate Matter (PM2.5) on Systemic Oxidative Stress and Cardiac Function in ApoE(-/-) Mice. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2016; 13:ijerph13050484. [PMID: 27187431 PMCID: PMC4881109 DOI: 10.3390/ijerph13050484] [Citation(s) in RCA: 53] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/14/2016] [Revised: 04/18/2016] [Accepted: 05/06/2016] [Indexed: 11/17/2022]
Abstract
Aim: In this study, we aimed to explore the toxic mechanisms of cardiovascular injuries induced by ambient fine particulate matter (PM2.5) in atherosclerotic-susceptible ApoE−/− mice. An acute toxicological animal experiment was designed with PM2.5 exposure once a day, every other day, for three days. Methods: ApoE−/− and C57BL/6 mice were randomly categorized into four groups, respectively (n = 6): one control group, three groups exposed to PM2.5 alone at low-, mid-, and high-dose (3, 10, or 30 mg/kg b.w.). Heart rate (HR) and electrocardiogram (ECG) were monitored before instillation of PM2.5 and 24 h after the last instillation, respectively. Cardiac function was monitored by echocardiography (Echo) after the last instillation. Biomarkers of systemic oxidative injuries (MDA, SOD), heart oxidative stress (MDA, SOD), and NAD(P)H oxidase subunits (p22phox, p47phox) mRNA and protein expression were analyzed in mice. The results showed that PM2.5 exposure could trigger the significant increase of MDA, and induce the decrease of heart rate variability (HRV), a marker of cardiac autonomic nervous system (ANS) function with a dose–response manner. Meanwhile, abnormal ECG types were monitored in mice after exposure to PM2.5. The expression of cytokines related with oxidative injuries, and mRNA and protein expression of NADPH, increased significantly in ApoE−/− mice in the high-dose group when compared with the dose-matched C57BL6 mice, but no significant difference was observed at Echo. In conclusion, PM2.5 exposure could cause oxidative and ANS injuries, and ApoE−/− mice displayed more severe oxidative effects induced by PM2.5.
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Xie Y, Bo L, Jiang S, Tian Z, Kan H, Li Y, Song W, Zhao J. Individual PM2.5 exposure is associated with the impairment of cardiac autonomic modulation in general residents. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2016; 23:10255-10261. [PMID: 26910828 DOI: 10.1007/s11356-015-5933-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2015] [Accepted: 12/07/2015] [Indexed: 06/05/2023]
Abstract
Fine particulate matter (PM2.5) is one of the major pollutants in metropolitan areas. The current study was conducted to observe the effects of PM2.5 on cardiac autonomic modulation. The participants included 619 men and women aged from 35-75 in a residential area in Shanghai, China. All the participants were divided into four categories according to the distance between their apartments and major road. In addition, individual PM2.5 was measured using SIDEPAKTM AM510 (TSI, USA) from 8:00 am to 6:00 pm. At the end of the individual PM2.5 measurement, the systolic pressure, diastolic pressure, heart rate (HR), low-frequency (LF), high-frequency (HF), and LF/HF were determined. The association between individual PM2.5 level and the above health effects was analyzed using generalized linear regression. The results showed that the average concentration of individual PM2.5 was 95.5 and 87.0 μg/m(3) for men and women. Residential distance to major road was negatively correlated with the individual PM2.5. The results indicated that per 1.0 μg/m(3) increase of individual PM2.5 was associated with a 2.3 % increase for systolic pressure, 0.3 % increase for diastolic pressure, 0.4 % decrease for LF, and 0.4 % decrease for HF. Nevertheless, there was no statistical association between individual PM2.5 and heart rate and LF/HF in the total model. In addition, the similar results were found in men and women excluding a significant association between PM2.5 and the heart rate in men. The alterations of cardiac autonomic modulation hinted that PM2.5 exposure might be associated with the potential occurrence of cardiovascular disease, such as arrhythmia and ischemic heart diseases.
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Affiliation(s)
- Yuquan Xie
- Department of Cardiology, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Liang Bo
- Department of Environmental Health, School of Public Health and Key Laboratory of Public Health Safety, Fudan University, 331 Building 8, 130 Dong'an Road, Shanghai, 200032, China
| | - Shuo Jiang
- Department of Environmental Health, School of Public Health and Key Laboratory of Public Health Safety, Fudan University, 331 Building 8, 130 Dong'an Road, Shanghai, 200032, China
| | - Zhenyong Tian
- Department of Environmental Health, School of Public Health and Key Laboratory of Public Health Safety, Fudan University, 331 Building 8, 130 Dong'an Road, Shanghai, 200032, China
| | - Haidong Kan
- Department of Environmental Health, School of Public Health and Key Laboratory of Public Health Safety, Fudan University, 331 Building 8, 130 Dong'an Road, Shanghai, 200032, China
| | - Yigang Li
- Department of Cardiology, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Weimin Song
- Department of Environmental Health, School of Public Health and Key Laboratory of Public Health Safety, Fudan University, 331 Building 8, 130 Dong'an Road, Shanghai, 200032, China
| | - Jinzhuo Zhao
- Department of Environmental Health, School of Public Health and Key Laboratory of Public Health Safety, Fudan University, 331 Building 8, 130 Dong'an Road, Shanghai, 200032, China.
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Jiang S, Bo L, Gong C, Du X, Kan H, Xie Y, Song W, Zhao J. Traffic-related air pollution is associated with cardio-metabolic biomarkers in general residents. Int Arch Occup Environ Health 2016; 89:911-21. [PMID: 27084335 DOI: 10.1007/s00420-016-1129-3] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2016] [Accepted: 04/07/2016] [Indexed: 10/21/2022]
Abstract
PURPOSE The study was conducted to explore the mechanisms linking traffic-related air pollution and cardio-metabolic risk. METHODS The participants included 371 men and women aged from 45 to 75 in an urban residential area in Shanghai, China. The participants were divided into four categories (≤50, 51-100, 101-200 and >200 m) according to the residential distance to major road. Additionally, the personal fine particulate matter (PM2.5) was measured from 8:00 am to 6:00 pm to assess the PM2.5 exposure in general residents. Then, the continuous subclinical measurements and biological effects related to cardio-metabolic disorders were detected. The generalized linear regression analysis was applied for estimating the adjusted hazards ratio for cardio-metabolic disorders relative to traffic-related air pollution. RESULTS The average personal PM2.5 is 111.1 μg/m(3) in the participants living within 50 m to major road, which is significantly higher than the personal PM2.5 (68.2 μg/m(3)) in the participants living more than 200 m away from the major road. The participants living within 50 m to major road compared with those living more than 200 m away have 1.15 times higher of heart rate (HR), 1.95 times higher of fasting insulin, 1.30 times higher of homeostasis model assessment of insulin resistance (HOMA-IR), 1.56 times higher of low-density lipoprotein cholesterol (LDL-C), 8.39 times higher of interleukin 6 (IL-6), 4.30 times higher of augmentation index (AI), 1.60 times higher of systolic blood pressure (SBP) and 1.91 times higher of diastolic blood pressure (DBP). Contrary to the increase in above biological effects, there were 1.06 times lower of low frequency (LF), 1.05 times lower of high frequency (HF), 2.54 times lower of IL-10, 4.61 times lower of nitric oxide (NO), 1.19 times lower of superoxide dismutase (SOD) and 1.85 times lower of total antioxidant capacity (T-AOC). There was no clear exposure-response relationship can be observed in the fasting glucose, LF/HF, cholesterol and high-density lipoprotein (HDL). CONCLUSION Long-term exposure to traffic-related air pollution may contribute to the development or exacerbation of cardio-metabolic disorders. The mechanisms linking air pollution and cardio-metabolic disorders may be associated with the increased systemic inflammation and oxidative stress, reduced insulin sensitivity and elevated arterial stiffness and blood pressure.
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Affiliation(s)
- Shuo Jiang
- Department of Environmental Health, School of Public Health and Key Laboratory of Public Health Safety, Fudan University, 331 Building 8, 130 Dong'an Road, Shanghai, 200032, China
| | - Liang Bo
- Department of Environmental Health, School of Public Health and Key Laboratory of Public Health Safety, Fudan University, 331 Building 8, 130 Dong'an Road, Shanghai, 200032, China
| | - Changyi Gong
- Department of Environmental Health, School of Public Health and Key Laboratory of Public Health Safety, Fudan University, 331 Building 8, 130 Dong'an Road, Shanghai, 200032, China
| | - Xihao Du
- Department of Environmental Health, School of Public Health and Key Laboratory of Public Health Safety, Fudan University, 331 Building 8, 130 Dong'an Road, Shanghai, 200032, China
| | - Haidong Kan
- Department of Environmental Health, School of Public Health and Key Laboratory of Public Health Safety, Fudan University, 331 Building 8, 130 Dong'an Road, Shanghai, 200032, China
| | - Yuquan Xie
- Department of Cardiology, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Weimin Song
- Department of Environmental Health, School of Public Health and Key Laboratory of Public Health Safety, Fudan University, 331 Building 8, 130 Dong'an Road, Shanghai, 200032, China
| | - Jinzhuo Zhao
- Department of Environmental Health, School of Public Health and Key Laboratory of Public Health Safety, Fudan University, 331 Building 8, 130 Dong'an Road, Shanghai, 200032, China.
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Huang Y, Tang C, Du J, Jin H. Endogenous Sulfur Dioxide: A New Member of Gasotransmitter Family in the Cardiovascular System. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2015; 2016:8961951. [PMID: 26839635 PMCID: PMC4709694 DOI: 10.1155/2016/8961951] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/15/2015] [Accepted: 10/28/2015] [Indexed: 01/20/2023]
Abstract
Sulfur dioxide (SO2) was previously regarded as a toxic gas in atmospheric pollutants. But it has been found to be endogenously generated from metabolism of sulfur-containing amino acids in mammals through transamination by aspartate aminotransferase (AAT). SO2 could be produced in cardiovascular tissues catalyzed by its synthase AAT. In recent years, studies revealed that SO2 had physiological effects on the cardiovascular system, including vasorelaxation and cardiac function regulation. In addition, the pathophysiological effects of SO2 were also determined. For example, SO2 ameliorated systemic hypertension and pulmonary hypertension, prevented the development of atherosclerosis, and protected against myocardial ischemia-reperfusion (I/R) injury and isoproterenol-induced myocardial injury. These findings suggested that endogenous SO2 was a novel gasotransmitter in the cardiovascular system and provided a new therapy target for cardiovascular diseases.
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Affiliation(s)
- Yaqian Huang
- Department of Pediatrics, Peking University First Hospital, Beijing 100034, China
| | - Chaoshu Tang
- Department of Physiology and Pathophysiology, Peking University Health Science Centre, Beijing 100191, China
- Key Laboratory of Molecular Cardiology, Ministry of Education, Beijing 100191, China
| | - Junbao Du
- Department of Pediatrics, Peking University First Hospital, Beijing 100034, China
- Key Laboratory of Molecular Cardiology, Ministry of Education, Beijing 100191, China
| | - Hongfang Jin
- Department of Pediatrics, Peking University First Hospital, Beijing 100034, China
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Zhong J, Colicino E, Lin X, Mehta A, Kloog I, Zanobetti A, Byun HM, Bind MA, Cantone L, Prada D, Tarantini L, Trevisi L, Sparrow D, Vokonas P, Schwartz J, Baccarelli AA. Cardiac autonomic dysfunction: particulate air pollution effects are modulated by epigenetic immunoregulation of Toll-like receptor 2 and dietary flavonoid intake. J Am Heart Assoc 2015; 4:e001423. [PMID: 25628407 PMCID: PMC4330067 DOI: 10.1161/jaha.114.001423] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Background Short‐term fine particles (PM2.5) exposure is associated with reduced heart rate variability, a strong predictor of cardiac mortality among older people. Identifying modifiable factors that confer susceptibility is essential for intervention. We evaluated whether Toll‐like receptor 2 (TLR2) methylation, a reversible immune‐epigenetic process, and its dietary modulation by flavonoids and methyl nutrients, modify susceptibility to heart rate variability effects following PM2.5 exposure. Methods and Results We measured heart rate variability and PM2.5 repeatedly over 11 years (1275 total observations) among 573 elderly men from the Normative Aging Study. Blood TLR2 methylation was analyzed using pyrosequencing. Daily flavonoid and methyl nutrients intakes were assessed through the Food Frequency Questionnaire (FFQ). Every 10 μg/m3 increase in 48‐hour PM2.5 moving average was associated with 7.74% (95% CI: −1.21% to 15.90%; P=0.09), 7.46% (95% CI: 0.99% to 13.50%; P=0.02), 14.18% (95% CI: 1.14% to 25.49%; P=0.03), and 12.94% (95% CI: −2.36% to 25.96%; P=0.09) reductions in root mean square of successive differences, standard deviation of normal‐to‐normal intervals, low‐frequency power, and high‐frequency power, respectively. Higher TLR2 methylation exacerbated the root mean square of successive differences, standard deviation of normal‐to‐normal intervals, low‐frequency, and high‐frequency reductions associated with heightened PM2.5 (Pinteraction=0.006, 0.03, 0.05, 0.04, respectively). Every interquartile‐range increase in flavonoid intake was associated with 5.09% reduction in mean TLR2 methylation (95% CI: 0.12% to 10.06%; P=0.05) and counteracted the effects of PM2.5 on low frequency (Pinteraction=0.05). No significant effect of methyl nutrients on TLR2 methylation was observed. Conclusions Higher TLR2 methylation may confer susceptibility to adverse cardiac autonomic effects of PM2.5 exposure in older individuals. Higher flavonoid intake may attenuate these effects, possibly by decreasing TLR2 methylation.
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Affiliation(s)
- Jia Zhong
- Department of Environmental Health, Harvard School of Public Health, Boston, MA (J.Z., E.C., A.M., A.Z., H.M.B., M.A.B., D.P., L.T., J.S., A.A.B.)
| | - Elena Colicino
- Department of Environmental Health, Harvard School of Public Health, Boston, MA (J.Z., E.C., A.M., A.Z., H.M.B., M.A.B., D.P., L.T., J.S., A.A.B.)
| | - Xinyi Lin
- Department of Biostatistics, Harvard School of Public Health, Boston, MA (X.L., M.A.B.) Singapore Institute for Clinical Sciences, Singapore (X.L.)
| | - Amar Mehta
- Department of Environmental Health, Harvard School of Public Health, Boston, MA (J.Z., E.C., A.M., A.Z., H.M.B., M.A.B., D.P., L.T., J.S., A.A.B.)
| | - Itai Kloog
- Department of Geography and Environmental Development, Ben-Gurion University of the Negev, Beer Sheva, Israel (I.K.)
| | - Antonella Zanobetti
- Department of Environmental Health, Harvard School of Public Health, Boston, MA (J.Z., E.C., A.M., A.Z., H.M.B., M.A.B., D.P., L.T., J.S., A.A.B.)
| | - Hyang-Min Byun
- Department of Environmental Health, Harvard School of Public Health, Boston, MA (J.Z., E.C., A.M., A.Z., H.M.B., M.A.B., D.P., L.T., J.S., A.A.B.)
| | - Marie-Abèle Bind
- Department of Environmental Health, Harvard School of Public Health, Boston, MA (J.Z., E.C., A.M., A.Z., H.M.B., M.A.B., D.P., L.T., J.S., A.A.B.) Department of Biostatistics, Harvard School of Public Health, Boston, MA (X.L., M.A.B.)
| | - Laura Cantone
- Center of Molecular and Genetic Epidemiology, Department of Clinical Sciences and Community Health, Università degli Studi di Milano, Milan, Italy (L.C., L.T.)
| | - Diddier Prada
- Department of Environmental Health, Harvard School of Public Health, Boston, MA (J.Z., E.C., A.M., A.Z., H.M.B., M.A.B., D.P., L.T., J.S., A.A.B.)
| | - Letizia Tarantini
- Center of Molecular and Genetic Epidemiology, Department of Clinical Sciences and Community Health, Università degli Studi di Milano, Milan, Italy (L.C., L.T.)
| | - Letizia Trevisi
- Department of Environmental Health, Harvard School of Public Health, Boston, MA (J.Z., E.C., A.M., A.Z., H.M.B., M.A.B., D.P., L.T., J.S., A.A.B.)
| | - David Sparrow
- VA Normative Aging Study, Veterans Affairs Boston Healthcare System and the Department of Medicine, Boston University School of Medicine, Boston, MA (D.S., P.V.)
| | - Pantel Vokonas
- VA Normative Aging Study, Veterans Affairs Boston Healthcare System and the Department of Medicine, Boston University School of Medicine, Boston, MA (D.S., P.V.)
| | - Joel Schwartz
- Department of Environmental Health, Harvard School of Public Health, Boston, MA (J.Z., E.C., A.M., A.Z., H.M.B., M.A.B., D.P., L.T., J.S., A.A.B.)
| | - Andrea A Baccarelli
- Department of Environmental Health, Harvard School of Public Health, Boston, MA (J.Z., E.C., A.M., A.Z., H.M.B., M.A.B., D.P., L.T., J.S., A.A.B.)
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11
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Malwal SR, Chakrapani H. Benzosulfones as photochemically activated sulfur dioxide (SO2) donors. Org Biomol Chem 2015; 13:2399-406. [DOI: 10.1039/c4ob02466d] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A series of benzosulfones were synthesized and found to undergo photolysis to generate sulfur dioxide in aqueous buffer.
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Affiliation(s)
- Satish R. Malwal
- Department of Chemistry
- Indian Institute of Science Education and Research
- Pune
- 411 008 India
| | - Harinath Chakrapani
- Department of Chemistry
- Indian Institute of Science Education and Research
- Pune
- 411 008 India
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12
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Weichenthal S, Hatzopoulou M, Goldberg MS. Exposure to traffic-related air pollution during physical activity and acute changes in blood pressure, autonomic and micro-vascular function in women: a cross-over study. Part Fibre Toxicol 2014; 11:70. [PMID: 25487431 PMCID: PMC4276095 DOI: 10.1186/s12989-014-0070-4] [Citation(s) in RCA: 110] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2014] [Accepted: 11/24/2014] [Indexed: 12/31/2022] Open
Abstract
Background Traffic-related air pollution may contribute to cardiovascular morbidity. In urban areas, exposures during physical activity are of interest owing to increased breathing rates and close proximity to vehicle emissions. Methods We conducted a cross-over study among 53 healthy non-smoking women in Montreal, Canada during the summer of 2013. Women were exposed to traffic pollutants for 2-hours on three separate occasions during cycling on high and low-traffic routes as well as indoors. Personal air pollution exposures (PM2.5, ultrafine particles (UFP), black carbon, NO2, and O3) were evaluated along each route and linear mixed-effects models with random subject intercepts were used to estimate the impact of air pollutants on acute changes in blood pressure, heart rate variability, and micro-vascular function in the hours immediately following exposure. Single and multi-pollutant models were examined and potential effect modification by mean regional air pollution concentrations (PM2.5, NO2, and O3) was explored for the 24-hour and 5-day periods preceding exposure. Results In total, 143 exposure routes were completed. Each interquartile increase (10,850/cm3) in UFP exposure was associated with a 4.91% (95% CI: -9.31, -0.512) decrease in reactive hyperemia index (a measure of micro-vascular function) and each 24 ppb increase in O3 exposure corresponded to a 2.49% (95% CI: 0.141, 4.84) increase in systolic blood pressure and a 3.26% (95% CI: 0.0117, 6.51) increase in diastolic blood pressure 3-hours after exposure. Personal exposure to PM2.5 was associated with decreases in HRV measures reflecting parasympathetic modulation of the heart and regional PM2.5 concentrations modified these relationships (p < 0.05). In particular, stronger inverse associations were observed when regional PM2.5 was higher on the days prior to the study period. Regional PM2.5 also modified the impact of personal O3 on the standard deviation of normal to normal intervals (SDNN) (p < 0.05): a significant inverse relationship was observed when regional PM2.5 was low prior to study periods and a significant positive relationship was observed when regional PM2.5 was high. Conclusion Exposure to traffic pollution may contribute to acute changes in blood pressure, autonomic and micro-vascular function in women. Regional air pollution concentrations may modify the impact of these exposures on autonomic function. Electronic supplementary material The online version of this article (doi:10.1186/s12989-014-0070-4) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Scott Weichenthal
- Air Health Science Division, Health Canada, 269 Laurier Avenue West, K1A 0K9, Ottawa, ON, Canada.
| | - Marianne Hatzopoulou
- Department of Civil Engineering, McGill University, Macdonald Engineering Building, 817 Sherbrooke Street West, H3A 0C3, Montreal, Quebec, Canada.
| | - Mark S Goldberg
- Division of Clinical Epidemiology, McGill University Health Center, 687 Pine Avenue West, H3A 1A1, Montreal, Quebec, Canada.
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13
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Nyhan M, McNabola A, Misstear B. Comparison of particulate matter dose and acute heart rate variability response in cyclists, pedestrians, bus and train passengers. THE SCIENCE OF THE TOTAL ENVIRONMENT 2014; 468-469:821-31. [PMID: 24076503 DOI: 10.1016/j.scitotenv.2013.08.096] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2013] [Revised: 08/22/2013] [Accepted: 08/28/2013] [Indexed: 05/04/2023]
Abstract
Exposure to airborne particulate matter (PM) has been linked to cardiovascular morbidity and mortality. Heart rate variability (HRV) is a measure of the change in cardiac autonomic function, and consistent links between PM exposure and decreased HRV have been documented in studies. This study quantitatively assesses the acute relative variation of HRV with predicted PM dose in the lungs of commuters. Personal PM exposure, HR and HRV were monitored in 32 young healthy cyclists, pedestrians, bus and train passengers. Inhaled and lung deposited PM doses were determined using a numerical model of the human respiratory tract which accounted for varying ventilation rates between subjects and during commutes. Linear mixed models were used to examine air pollution dose and HRV response relationships in 122 commutes sampled. Elevated PM2.5 and PM10 inhaled and lung deposited doses were significantly (p<0.05) associated with decreased HRV indices. Percent declines in SDNN (standard deviation of normal RR intervals) relative to resting, due to an inter-quartile range increase in PM10 lung deposited dose were stronger in cyclists (-6.4%, 95% CI: -11.7, -1.3) and pedestrians (-5.8%, 95% CI: -11.3, -0.5), in comparison to bus (-3.2%, 95% CI: -6.4, -0.1) and train (-1.8%, -7.5, 3.8) passengers. A similar trend was observed in the case of PM2.5 lung deposited dose and results for rMSSD (the square root of the squared differences of successive normal RR intervals) followed similar trends to SDNN. Inhaled and lung deposited doses accounting for varying ventilation rates between modes, individuals and during commutes have been neglected in other studies relating PM to HRV. The findings here indicate that exercise whilst commuting has an influence on inhaled PM and PM lung deposited dose, and these were significantly associated with acute declines in HRV, especially in pedestrians and cyclists.
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Affiliation(s)
- Marguerite Nyhan
- Civil, Structural and Environmental Engineering Department, Trinity College Dublin, Ireland.
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14
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Woerman AL, Mendelowitz D. Perinatal sulfur dioxide exposure alters brainstem parasympathetic control of heart rate. Cardiovasc Res 2013; 99:16-23. [PMID: 23504550 PMCID: PMC3687747 DOI: 10.1093/cvr/cvt057] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/15/2012] [Revised: 02/25/2013] [Accepted: 03/11/2013] [Indexed: 11/14/2022] Open
Abstract
AIMS Sulfur dioxide (SO₂) is an air pollutant that impedes neonatal development and induces adverse cardiorespiratory health effects, including tachycardia. Here, an animal model was developed that enabled characterization of (i) in vivo alterations in heart rate and (ii) altered activity in brainstem neurons that control heart rate after perinatal SO₂ exposure. METHODS AND RESULTS Pregnant Sprague-Dawley dams and their pups were exposed to 5 parts per million SO₂ for 1 h daily throughout gestation and 6 days postnatal. Electrocardiograms were recorded from pups at 5 days postnatal to examine changes in basal and diving reflex-evoked changes in heart rate following perinatal SO₂ exposure. In vitro studies employed whole-cell patch-clamp electrophysiology to examine changes in neurotransmission to cardiac vagal neurons within the nucleus ambiguus upon SO₂ exposure using a preparation that maintains fictive inspiratory activity recorded from the hypoglossal rootlet. Perinatal SO₂ exposure increased heart rate and blunted the parasympathetic-mediated diving reflex-evoked changes in heart rate. Neither spontaneous nor inspiratory-related inhibitory GABAergic or glycinergic neurotransmission to cardiac vagal neurons was altered by SO₂ exposure. However, excitatory glutamatergic neurotransmission was decreased by 51.2% upon SO₂ exposure. This diminished excitatory neurotransmission was tetrodotoxin-sensitive, indicating SO₂ exposure impaired the activity of preceding glutamatergic neurons that synapse upon cardiac vagal neurons. CONCLUSIONS Diminished glutamatergic, but unaltered inhibitory neurotransmission to cardiac vagal neurons provides a mechanism for the observed SO₂-induced elevated heart rate via an impairment of brainstem cardioinhibitory parasympathetic activity to the heart.
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Affiliation(s)
| | - David Mendelowitz
- Department of Pharmacology and Physiology, The George Washington University, 2300 Eye Street Northwest, Ross Hall 640, Washington, DC 20037, USA
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15
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Woerman AL, Mendelowitz D. Postnatal sulfur dioxide exposure reversibly alters parasympathetic regulation of heart rate. Hypertension 2013; 62:274-80. [PMID: 23774227 DOI: 10.1161/hypertensionaha.113.01552] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Perinatal sulfur dioxide exposure disrupts parasympathetic regulation of cardiovascular activity. Here, we examine the relative risks of prenatal versus postnatal exposure to the air pollutant and the reversibility of the cardiovascular effects. Two groups of animals were used for this study. For prenatal exposure, pregnant Sprague-Dawley dams were exposed to 5 parts per million sulfur dioxide for 1 hour daily throughout gestation and with their pups after birth to medical-grade air through 6 days postnatal. For postnatal exposure, dams were exposed to air, and after delivery along with their pups to 5 parts per million sulfur dioxide through postnatal day 6. ECGs were recorded from pups on postnatal day 5 to examine changes in heart rate. Whole-cell patch-clamp electrophysiology was used to examine changes in neurotransmission to cardiac vagal neurons in the nucleus ambiguus on sulfur dioxide exposure. Postnatal sulfur dioxide exposure diminished glutamatergic neurotransmission to cardiac vagal neurons by 40.9% and increased heart rate, whereas prenatal exposure altered neither of these properties. When postnatal exposure concluded on postnatal day 5, excitatory neurotransmission remained decreased through day 6 and returned to basal levels by day 7. ECGs showed that heart rate remained elevated through day 6 and recovered by day 7. On activation of the parasympathetic diving reflex, the response was significantly blunted by postnatal sulfur dioxide exposure through day 7 but recovered by day 8. Postnatal, but not prenatal, exposure to sulfur dioxide can disrupt parasympathetic regulation of cardiovascular activity. Neonates can recover from these effects within 2 to 3 days of discontinued exposure.
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Affiliation(s)
- Amanda L Woerman
- Department of Pharmacology and Physiology, The George Washington University, 2300 Eye St NW, Ross Hall 640, Washington, DC, USA
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16
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Pieters N, Plusquin M, Cox B, Kicinski M, Vangronsveld J, Nawrot TS. An epidemiological appraisal of the association between heart rate variability and particulate air pollution: a meta-analysis. Heart 2012; 98:1127-35. [PMID: 22628541 PMCID: PMC3392690 DOI: 10.1136/heartjnl-2011-301505] [Citation(s) in RCA: 123] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Objective Studies on the association between short-term exposure to ambient air pollution and heart rate variability (HRV) suggest that particulate matter (PM) exposure is associated with reductions in measures of HRV, but there is heterogeneity in the nature and magnitude of this association between studies. The authors performed a meta-analysis to determine how consistent this association is. Data source The authors searched the Pubmed citation database and Web of Knowledge to identify studies on HRV and PM. Study selection Of the epidemiologic studies reviewed, 29 provided sufficient details to be considered. The meta-analysis included 18667 subjects recruited from the population in surveys, studies from patient groups, and from occupationally exposed groups. Data extraction Two investigators read all papers and computerised all relevant information. Results The authors computed pooled estimates from a random-effects model. In the combined studies, an increase of 10 μg/m3 in PM2.5 was associated with significant reductions in the time-domain measurements, including low frequency (−1.66%, 95% CI −2.58% to −0.74%) and high frequency (−2.44%, 95% CI −3.76% to −1.12%) and in frequency-domain measurements, for SDNN (−0.12%, 95% CI −0.22% to −0.03%) and for rMSSD (−2.18%, 95% CI −3.33% to −1.03%). Funnel plots suggested that no publication bias was present and a sensitivity analysis confirmed the robustness of our combined estimates. Conclusion The meta-analysis supports an inverse relationship between HRV, a marker for a worse cardiovascular prognosis, and particulate air pollution.
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Affiliation(s)
- Nicky Pieters
- Hasselt University, Agoralaan Gebouw D, Diepenbeek, Belgium
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Wu S, Deng F, Niu J, Huang Q, Liu Y, Guo X. The relationship between traffic-related air pollutants and cardiac autonomic function in a panel of healthy adults: a further analysis with existing data. Inhal Toxicol 2011; 23:289-303. [DOI: 10.3109/08958378.2011.568976] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Guo Y, Tong S, Li S, Barnett AG, Yu W, Zhang Y, Pan X. Gaseous air pollution and emergency hospital visits for hypertension in Beijing, China: a time-stratified case-crossover study. Environ Health 2010; 9:57. [PMID: 20920362 PMCID: PMC2972268 DOI: 10.1186/1476-069x-9-57] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2010] [Accepted: 10/05/2010] [Indexed: 05/18/2023]
Abstract
BACKGROUND A number of epidemiological studies have been conducted to research the adverse effects of air pollution on mortality and morbidity. Hypertension is the most important risk factor for cardiovascular mortality. However, few previous studies have examined the relationship between gaseous air pollution and morbidity for hypertension. METHODS Daily data on emergency hospital visits (EHVs) for hypertension were collected from the Peking University Third Hospital. Daily data on gaseous air pollutants (sulfur dioxide (SO2) and nitrogen dioxide (NO2)) and particulate matter less than 10 μm in aerodynamic diameter (PM10) were collected from the Beijing Municipal Environmental Monitoring Center. A time-stratified case-crossover design was conducted to evaluate the relationship between urban gaseous air pollution and EHVs for hypertension. Temperature and relative humidity were controlled for. RESULTS In the single air pollutant models, a 10 μg/m3 increase in SO2 and NO2 were significantly associated with EHVs for hypertension. The odds ratios (ORs) were 1.037 (95% confidence interval (CI): 1.004-1.071) for SO2 at lag 0 day, and 1.101 (95% CI: 1.038-1.168) for NO2 at lag 3 day. After controlling for PM10, the ORs associated with SO2 and NO2 were 1.025 (95% CI: 0.987-1.065) and 1.114 (95% CI: 1.037-1.195), respectively. CONCLUSION Elevated urban gaseous air pollution was associated with increased EHVs for hypertension in Beijing, China.
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Affiliation(s)
- Yuming Guo
- School of Public Health and Institute of Health and Biomedical Innovation, Queensland University of Technology, Kelvin Grove, Brisbane, Queensland 4059, Australia
| | - Shilu Tong
- School of Public Health and Institute of Health and Biomedical Innovation, Queensland University of Technology, Kelvin Grove, Brisbane, Queensland 4059, Australia
| | - Shanshan Li
- Department of Child and Maternal Health and Institute of Child and Adolescent Health, Peking University School of Public Health, Beijing 100191, PR China
| | - Adrian G Barnett
- School of Public Health and Institute of Health and Biomedical Innovation, Queensland University of Technology, Kelvin Grove, Brisbane, Queensland 4059, Australia
| | - Weiwei Yu
- School of Public Health and Institute of Health and Biomedical Innovation, Queensland University of Technology, Kelvin Grove, Brisbane, Queensland 4059, Australia
| | - Yanshen Zhang
- Department of Environmental Pollution and Health, Chinese Research Academy of Environmental Sciences, Beijing 100012, PR China
| | - Xiaochuan Pan
- Department of Occupational and Environmental Health, Peking University School of Public Health, Beijing 100191, PR China
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19
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Affiliation(s)
- Qinghua Sun
- Division of Environmental Health Sciences, College of Public Health, Division of Cardiovascular Medicine, Ohio State University, Columbus, USA.
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20
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Brook RD, Rajagopalan S, Pope CA, Brook JR, Bhatnagar A, Diez-Roux AV, Holguin F, Hong Y, Luepker RV, Mittleman MA, Peters A, Siscovick D, Smith SC, Whitsel L, Kaufman JD. Particulate matter air pollution and cardiovascular disease: An update to the scientific statement from the American Heart Association. Circulation 2010; 121:2331-78. [PMID: 20458016 DOI: 10.1161/cir.0b013e3181dbece1] [Citation(s) in RCA: 3826] [Impact Index Per Article: 273.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
In 2004, the first American Heart Association scientific statement on "Air Pollution and Cardiovascular Disease" concluded that exposure to particulate matter (PM) air pollution contributes to cardiovascular morbidity and mortality. In the interim, numerous studies have expanded our understanding of this association and further elucidated the physiological and molecular mechanisms involved. The main objective of this updated American Heart Association scientific statement is to provide a comprehensive review of the new evidence linking PM exposure with cardiovascular disease, with a specific focus on highlighting the clinical implications for researchers and healthcare providers. The writing group also sought to provide expert consensus opinions on many aspects of the current state of science and updated suggestions for areas of future research. On the basis of the findings of this review, several new conclusions were reached, including the following: Exposure to PM <2.5 microm in diameter (PM(2.5)) over a few hours to weeks can trigger cardiovascular disease-related mortality and nonfatal events; longer-term exposure (eg, a few years) increases the risk for cardiovascular mortality to an even greater extent than exposures over a few days and reduces life expectancy within more highly exposed segments of the population by several months to a few years; reductions in PM levels are associated with decreases in cardiovascular mortality within a time frame as short as a few years; and many credible pathological mechanisms have been elucidated that lend biological plausibility to these findings. It is the opinion of the writing group that the overall evidence is consistent with a causal relationship between PM(2.5) exposure and cardiovascular morbidity and mortality. This body of evidence has grown and been strengthened substantially since the first American Heart Association scientific statement was published. Finally, PM(2.5) exposure is deemed a modifiable factor that contributes to cardiovascular morbidity and mortality.
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Min JY, Paek D, Cho SI, Min KB. Exposure to environmental carbon monoxide may have a greater negative effect on cardiac autonomic function in people with metabolic syndrome. THE SCIENCE OF THE TOTAL ENVIRONMENT 2009; 407:4807-4811. [PMID: 19535130 DOI: 10.1016/j.scitotenv.2009.05.028] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2009] [Revised: 05/10/2009] [Accepted: 05/14/2009] [Indexed: 05/27/2023]
Abstract
Carbon monoxide (CO) has been recognized as a risk factor for adverse cardiovascular outcomes. We investigated the effects of CO on cardiac autonomic function by measuring the heart rate variability (HRV) in patients with and without metabolic syndrome (MetS). We also explored the relationship between CO exposure and specific components of MetS. Data were obtained from air pollution measurements and from health examinations on a total of 986 subjects, from a Korean community. Measurements of the 5-min HRV and examinations for MetS were conducted, and a linear regression model with a time lag was evaluated for any association. The group with MetS showed a significant reduction in the standard deviation of the normal-to-normal intervals (SDNN) and in the high frequency domain of HRV. After adjusting for age, sex, smoking status, day of the week effect, month effect, temperature, and relative humidity, these declines were significantly associated with exposure to CO for 25 to 48 h prior to the HRV measurement. Evidence for effect-modification by two specific MetS components, fasting blood glucose and triglycerides, was also observed in relation to CO exposure. These results suggest that CO exposure may trigger changes in cardiac autonomic function, and that subjects at high risk for heart disease may be more susceptible to CO effects.
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Affiliation(s)
- Jin-Young Min
- Institute of Health and Environment, Seoul National University, 28 Yeongun-dong, Jongno-gu, Seoul, 110-460, Republic of Korea
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