1
|
Alewel DI, Kodavanti UP. Neuroendocrine contribution to sex-related variations in adverse air pollution health effects. JOURNAL OF TOXICOLOGY AND ENVIRONMENTAL HEALTH. PART B, CRITICAL REVIEWS 2024:1-28. [PMID: 39075643 DOI: 10.1080/10937404.2024.2383637] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/31/2024]
Abstract
Air pollution exposure is ranked as a leading environmental risk factor for not only cardiopulmonary diseases but also for systemic health ailments including diabetes, reproductive abnormalities, and neuropsychiatric disorders, likely mediated by central neural stress mechanisms. Current experimental evidence links many air pollution health outcomes with activation of neuroendocrine sympathetic-adrenal-medullary and hypothalamic-pituitary-adrenal (HPA) stress axes associated with resultant increases in adrenal-derived hormone levels acting as circulating mediators of multi-organ stress reactions. Epidemiological and experimental investigations also demonstrated sex-specific responses to air pollutant inhalation, which may be attributed to hormonal interactions within the stress and reproductive axes. Sex hormones (androgens and estrogens) interact with neuroendocrine functions to influence hypothalamic responses, subsequently augmenting stress-mediated metabolic and immune changes. These neurohormonal interactions may contribute to innate sex-specific responses to inhaled irritants, inducing differing individual susceptibility. The aim of this review was to: (1) examine neuroendocrine co-regulation of the HPA axis by gonadal hormones, (2) provide experimental evidence demonstrating sex-specific respiratory and systemic effects attributed to air pollutant inhalation exposure, and (3) postulate proposed mechanisms of stress and sex hormone interactions during air pollution-related stress.
Collapse
Affiliation(s)
- Devin I Alewel
- Oak Ridge Institute for Science and Education Research Participation Program, U.S. Environmental Protection Agency, Research Triangle Park, NC, USA
| | - Urmila P Kodavanti
- Public Health and Integrated Toxicology Division, Center for Public Health and Environmental Assessment, U.S. Environmental Protection Agency, Research Triangle Park, NC, USA
| |
Collapse
|
2
|
Barbosa ECD, Farina GS, Basso CS, Camafort M, Coca A, Nadruz W. Seasonal variation in blood pressure: what is still missing? Front Cardiovasc Med 2023; 10:1233325. [PMID: 37663410 PMCID: PMC10469506 DOI: 10.3389/fcvm.2023.1233325] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Accepted: 08/01/2023] [Indexed: 09/05/2023] Open
Abstract
Seasonal variation of blood pressure (BP) is a topic in cardiology that has gained more attention throughout the years. Although it is extensively documented that BP increases in seasons coupled with lower temperatures, there are still many gaps in this knowledge field that need to be explored. Notably, seasonal variation of BP phenotypes, such as masked and white coat hypertension, and the impact of air pollution, latitude, and altitude on seasonal variation of BP are still poorly described in the literature, and the levels of the existing evidence are low. Therefore, further investigations on these topics are needed to provide robust evidence that can be used in clinical practice.
Collapse
Affiliation(s)
- Eduardo Costa Duarte Barbosa
- Hypertension Leagueof Porto Alegre, Porto Alegre, Brazil
- Department of Internal Medicine, School of Medical Sciences, State University of Campinas, Campinas, Brazil
- Department of Hypertension and Cardiometabolism, São Francisco Hospital, Santa Casa de Misericórdia de Porto Alegre, Feevale University, Porto Alegre, Brazil
| | - Giovani Schulte Farina
- Hypertension Leagueof Porto Alegre, Porto Alegre, Brazil
- Center for Clinical Research and Management Education, Division of Health Care Sciences, Dresden International University, Dresden, Germany
| | - Carolina Souza Basso
- Hypertension Leagueof Porto Alegre, Porto Alegre, Brazil
- School of Medicine, Lutheran University of Brazil, Canoas, Brazil
| | - Miguel Camafort
- Hypertension and Vascular Risk Unit, Hospital Clínic (IDIBAPS), Department of Internal Medicine, University of Barcelona, Barcelona, Spain
- Centro de Investigación Biomédica en Red-Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III, Madrid, Spain
| | - Antonio Coca
- Hypertension and Vascular Risk Unit, Hospital Clínic (IDIBAPS), Department of Internal Medicine, University of Barcelona, Barcelona, Spain
| | - Wilson Nadruz
- Department of Internal Medicine, School of Medical Sciences, State University of Campinas, Campinas, Brazil
| |
Collapse
|
3
|
Nouri F, Taheri M, Ziaddini M, Najafian J, Rabiei K, Pourmoghadas A, Shariful Islam SM, Sarrafzadegan N. Effects of sulfur dioxide and particulate matter pollution on hospital admissions for hypertensive cardiovascular disease: A time series analysis. Front Physiol 2023; 14:1124967. [PMID: 36891138 PMCID: PMC9986430 DOI: 10.3389/fphys.2023.1124967] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Accepted: 02/09/2023] [Indexed: 02/22/2023] Open
Abstract
Background and aims: Air pollution is a major environmental risk factor and the leading cause of disease burden with detrimental effects on cardiovascular systems. Cardiovascular diseases are predisposed by various risk factors, including hypertension, as the most important modifiable risk factor. However, there is a lack of sufficient data concerning the impact of air pollution on hypertension. We sought to study the associations of short-term exposure to Sulfur dioxide (SO2) and particulate matter (PM10) with the number of daily hospital admissions of hypertensive cardiovascular diseases (HCD). Methods: All hospitalized patients between March 2010 to March 2012 were recruited with the final diagnosis of HCD based on the International Classification of Diseases 10 (codes: I10-I15) from 15 hospitals in Isfahan, one of the most polluted cities in Iran. The 24-hour average concentrations of pollutants were obtained from 4 monitoring stations. In addition to single- and two-pollutant models, we used Negative Binomial and Poisson models with covariates of holidays, dew point, temperature, wind speed, and extracted latent factors of other pollutants controlling for multi-collinearity to examine the risk for hospital admissions for HCD affected by SO2 and PM10 exposures in the multi-pollutant model. Results: A total of 3132 hospitalized patients (63% female) with a mean (standard deviation) age of 64.96 (13.81) were incorporated in the study. The mean concentrations of SO2 and PM10 were 37.64 μg/m3 and 139.08 μg/m3, respectively. Our findings showed that a significantly increased risk of HCD-induced hospital admission was detected for a 10 μg/m3 increase in the 6-day and 3-day moving average of SO2 and PM10 concentrations in the multi-pollutant model with a percent change of 2.11% (95% confidence interval: 0.61 to 3.63%) and 1.19% (0.33 to 2.05%), respectively. This finding was robust in all models and did not vary by gender (for SO2 and PM10) and season (for SO2). However, people aged 35-64 and 18-34 years were vulnerable to SO2 and PM10 exposure-triggered HCD risk, respectively. Conclusions: This study supports the hypothesis of the association between short-term exposure to ambient SO2 and PM10 and the number of hospital admissions due to HCD.
Collapse
Affiliation(s)
- Fatemeh Nouri
- Heart Failure Research Center, Cardiovascular Research Institute, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Marzieh Taheri
- Isfahan Cardiovascular Research Center, Cardiovascular Research Institute, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Mahdi Ziaddini
- Student Research Committee, Department of Occupational Health, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Jamshid Najafian
- Hypertension Research Center, Cardiovascular Research Institute, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Katayoun Rabiei
- Pediatric Cardiovascular Research Center, Cardiovascular Research Institute, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Ali Pourmoghadas
- Interventional Cardiology Research Center, Cardiovascular Research Institute, Isfahan University of Medical Sciences, Isfahan, Iran
| | | | - Nizal Sarrafzadegan
- Isfahan Cardiovascular Research Center, Cardiovascular Research Institute, Isfahan University of Medical Sciences, Isfahan, Iran
| |
Collapse
|
4
|
Martin BL, Thompson LC, Kim YH, King C, Snow S, Schladweiler M, Haykal-Coates N, George I, Gilmour MI, Kodavanti UP, Hazari MS, Farraj AK. Peat smoke inhalation alters blood pressure, baroreflex sensitivity, and cardiac arrhythmia risk in rats. JOURNAL OF TOXICOLOGY AND ENVIRONMENTAL HEALTH. PART A 2020; 83:748-763. [PMID: 33016233 PMCID: PMC7682804 DOI: 10.1080/15287394.2020.1826375] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
Wildland fires (WF) are linked to adverse health impacts related to poor air quality. The cardiovascular impacts of emissions from specific biomass sources are however unknown. The purpose of this study was to assess the cardiovascular impacts of a single exposure to peat smoke, a key regional WF air pollution source, and relate these to baroreceptor sensitivity and inflammation. Three-month-old male Wistar-Kyoto rats, implanted with radiotelemeters for continuous monitoring of heart rate (HR), blood pressure (BP), and spontaneous baroreflex sensitivity (BRS), were exposed once, for 1-hr, to filtered air or low (0.38 mg/m3 PM) or high (4.04 mg/m3) concentrations of peat smoke. Systemic markers of inflammation and sensitivity to aconitine-induced cardiac arrhythmias, a measure of latent myocardial vulnerability, were assessed in separate cohorts of rats 24 hr after exposure. PM size (low peat = 0.4-0.5 microns vs. high peat = 0.8-1.2 microns) and proportion of organic carbon (low peat = 77% vs. high peat = 65%) varied with exposure level. Exposure to high peat and to a lesser extent low peat increased systolic and diastolic BP relative to filtered air. In contrast, only exposure to low peat elevated BRS and aconitine-induced arrhythmogenesis relative to filtered air and increased circulating levels of low-density lipoprotein cholesterol, complement components C3 and C4, angiotensin-converting enzyme (ACE), and white blood cells. Taken together, exposure to peat smoke produced overt and latent cardiovascular consequences that were likely influenced by physicochemical characteristics of the smoke and associated adaptive homeostatic mechanisms.
Collapse
Affiliation(s)
| | | | - Yong Ho Kim
- Center for Environmental Medicine, Asthma and Lung Biology, School of Medicine, University of North Carolina, Chapel Hill, NC
| | - Charly King
- Public Health and Integrated Toxicology Division, US EPA, RTP, NC
| | - Samantha Snow
- Public Health and Integrated Toxicology Division, US EPA, RTP, NC
- ICF International, Durham, NC
| | | | | | - Ingrid George
- Air Methods & Characterization Division, US EPA, RTP, NC
| | - M. Ian Gilmour
- Public Health and Integrated Toxicology Division, US EPA, RTP, NC
| | | | - Mehdi S. Hazari
- Public Health and Integrated Toxicology Division, US EPA, RTP, NC
| | - Aimen K. Farraj
- Public Health and Integrated Toxicology Division, US EPA, RTP, NC
| |
Collapse
|
5
|
Chen H, Xu Y, Rappold A, Diaz-Sanchez D, Tong H. Effects of ambient ozone exposure on circulating extracellular vehicle microRNA levels in coronary artery disease patients. JOURNAL OF TOXICOLOGY AND ENVIRONMENTAL HEALTH. PART A 2020; 83:351-362. [PMID: 32414303 PMCID: PMC7306136 DOI: 10.1080/15287394.2020.1762814] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
Exposure to ambient air pollutants such as ozone (O3) and particulate matter (PM) is associated with increased cardiovascular morbidity and rate of mortality, but the underlying biological mechanisms have yet to be described. Emerging evidence shows that extracellular vehicle (EV) microRNAs (miRNAs) may facilitate cell-to-cell and organ-to-organ communications and play a role in the air pollution-induced cardiovascular effects. This study aims to explore the association between air pollutant exposure and miRNA changes related to cardiovascular diseases. Using a panel study design, 14 participants with coronary artery diseases were enrolled in this study. Each participant had up to 10 clinical visits and their plasma samples were collected and measured for expression of miRNA-21 (miR-21), miR-126, miR-146, miR-150, and miR-155. Mixed effects models adjusted for temperature, humidity, and season were used to examine the association between miRNA levels and exposure to 8-hr O3 or 24-hr PM2.5 up to 4 days prior. Results demonstrated that miR-150 expression was positively associated with O3 exposure at 1-4 days lag and 5day moving average while miR-155 expression tracked with O3 exposure at lag 0. No significant association was found between miRNA expression and ambient PM2.5 at any time point. β-blocker and diabetic medication usage significantly modified the correlation between O3 exposure and miR-150 expression where the link was more prominent among non-users. In conclusion, evidence indicated an association between exposure to ambient O3 and circulating levels of EV miR-150 and miR-155 was observed. These findings pointed to a future research direction involving miRNA-mediated mechanisms of O3-induced cardiovascular effects.
Collapse
Affiliation(s)
- Hao Chen
- Oak Ridge Institute of Science and Education, 100 ORAU Way, Oak Ridge, TN 37830, USA
| | - Yunan Xu
- Department of Psychiatry and Behavioral Sciences, Duke University, 905 W. Main Street, Durham, NC 27701, USA
| | - Ana Rappold
- Public Health and Integrated Toxicology Division, Center for Public Health and Environmental Assessment, U.S. Environmental Protection Agency, 104 Mason Farm Road, Chapel Hill, NC 27514, USA
| | - David Diaz-Sanchez
- Public Health and Integrated Toxicology Division, Center for Public Health and Environmental Assessment, U.S. Environmental Protection Agency, 104 Mason Farm Road, Chapel Hill, NC 27514, USA
| | - Haiyan Tong
- Public Health and Integrated Toxicology Division, Center for Public Health and Environmental Assessment, U.S. Environmental Protection Agency, 104 Mason Farm Road, Chapel Hill, NC 27514, USA
| |
Collapse
|
6
|
Morgan J, Bell R, Jones AL. Endogenous doesn't always mean innocuous: a scoping review of iron toxicity by inhalation. JOURNAL OF TOXICOLOGY AND ENVIRONMENTAL HEALTH. PART B, CRITICAL REVIEWS 2020; 23:107-136. [PMID: 32106786 DOI: 10.1080/10937404.2020.1731896] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Ambient air pollution is a leading risk factor for the global burden of disease. One possible pathway of particulate matter (PM)-induced toxicity is through iron (Fe), the most abundant metal in the atmosphere. The aim of the review was to consider the complexity of Fe-mediated toxicity following inhalation exposure focusing on the chemical and surface reactivity of Fe as a transition metal and possible pathways of toxicity via reactive oxygen species (ROS) generation as well as considerations of size, morphology, and source of PM. A broad term search of 4 databases identified 2189 journal articles and reports examining exposure to Fe via inhalation in the past 10 years. These were sequentially analyzed by title, abstract and full-text to identify 87 articles publishing results on the toxicity of Fe-containing PM by inhalation or instillation to the respiratory system. The remaining 87 papers were examined to summarize research dealing with in vitro, in vivo and epidemiological studies involving PM containing Fe or iron oxide following inhalation or instillation. The major findings from these investigations are summarized and tabulated. Epidemiological studies showed that exposure to Fe oxide is correlated with an increased incidence of cancer, cardiovascular diseases, and several respiratory diseases. Iron PM was found to induce inflammatory effects in vitro and in vivo and to translocate to remote locations including the brain following inhalation. A potential pathway for the PM-containing Fe-mediated toxicity by inhalation is via the generation of ROS which leads to lipid peroxidation and DNA and protein oxidation. Our recommendations include an expansion of epidemiological, in vivo and in vitro studies, integrating research improvements outlined in this review, such as the method of particle preparation, cell line type, and animal model, to enhance our understanding of the complex biological interactions of these particles.
Collapse
Affiliation(s)
- Jody Morgan
- Faculty of Science, Medicine and Health, University of Wollongong, Wollongong, Australia
- Illawarra Health and Medical Research Institute, University of Wollongong, Wollongong, Australia
| | - Robin Bell
- School of Medicine and Public Health, University of Newcastle, Newcastle, Australia
| | - Alison L Jones
- Faculty of Science, Medicine and Health, University of Wollongong, Wollongong, Australia
- Illawarra Health and Medical Research Institute, University of Wollongong, Wollongong, Australia
| |
Collapse
|
7
|
Tong H, Zavala J, McIntosh-Kastrinsky R, Sexton KG. Cardiovascular effects of diesel exhaust inhalation: photochemically altered versus freshly emitted in mice. JOURNAL OF TOXICOLOGY AND ENVIRONMENTAL HEALTH. PART A 2019; 82:944-955. [PMID: 31566091 PMCID: PMC7308149 DOI: 10.1080/15287394.2019.1671278] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
This study was designed to compare the cardiovascular effects of inhaled photochemically altered diesel exhaust (aged DE) to freshly emitted DE (fresh DE) in female C57Bl/6 mice. Mice were exposed to either fresh DE, aged DE, or filtered air (FA) for 4 hr using an environmental irradiation chamber. Cardiac responses were assessed 8 hr after exposure utilizing Langendorff preparation with a protocol consisting of 20 min of perfusion and 20 min of ischemia followed by 2 hr of reperfusion. Cardiac function was measured by indices of left-ventricular-developed pressure (LVDP) and contractility (dP/dt) prior to ischemia. Recovery of post-ischemic LVDP was examined on reperfusion following ischemia. Fresh DE contained 460 µg/m3 of particulate matter (PM), 0.29 ppm of nitrogen dioxide (NO2) and no ozone (O3), while aged DE consisted of 330 µg/m3 of PM, 0.23 ppm O3 and no NO2. Fresh DE significantly decreased LVDP, dP/dtmax, and dP/dtmin compared to FA. Aged DE also significantly reduced LVDP and dP/dtmax. Data demonstrated that acute inhalation to either fresh or aged DE lowered LVDP and dP/dt, with a greater fall noted with fresh DE, suggesting that the composition of DE may play a key role in DE-induced adverse cardiovascular effects in female C57Bl/6 mice.
Collapse
Affiliation(s)
- Haiyan Tong
- Environmental Public Health Division, NHEERL, US Environmental Protection Agency, Research Triangle Park, North Carolina
| | - Jose Zavala
- Department of Environmental Sciences and Engineering, Gilling’s School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
| | - Rachel McIntosh-Kastrinsky
- Department of Environmental Sciences and Engineering, Gilling’s School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
| | - Kenneth G. Sexton
- Department of Environmental Sciences and Engineering, Gilling’s School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
| |
Collapse
|
8
|
Zhang D, Li Y, Chen Q, Jiang Y, Chu C, Ding Y, Yu Y, Fan Y, Shi J, Luo Y, Zhou W. The relationship between air quality and respiratory pathogens among children in Suzhou City. Ital J Pediatr 2019; 45:123. [PMID: 31547841 PMCID: PMC6757402 DOI: 10.1186/s13052-019-0702-2] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/07/2019] [Accepted: 08/06/2019] [Indexed: 01/10/2023] Open
Abstract
OBJECTIVE We studied the short-term effects of air pollutant concentrations in Suzhou City on respiratory infections in children of different age groups. METHODS We employed clinical data from children hospitalized with respiratory infections at the Children's Hospital of Soochow University during 2014-2016, and air quality for Suzhou City covering the same period.We investigated the relationships between the air pollutant concentrations and respiratory tract infections in children by causative pathogen using time series models with lagged effects. RESULTS The results of single-pollutant models showed that PM2.5, PM10, NO2, SO2 and CO had statistically significant associations with respiratory tract infections in children under 3 years, with the largest effect sizes at a lag of 3 weeks. Notably, the multi-pollutant model found PM2.5 was significantly associated with viral respiratory in children under 7 months, and bacterial respiratory infections in other age groups, while PM10 concentrations were associated with viral infections in preschool children. CONCLUSION PM2.5, PM10 and NO2 are the main atmospheric pollutants in Suzhou. The associations between pollutant concentrations and viral and bacterial respiratory infections were stronger among children under 3 years than for older age group.s PM2.5 had the strongest influence on viral and Mycoplasma pneumoniae respiratory infections when multiple pollutants were tested together.
Collapse
Affiliation(s)
- Dandan Zhang
- Department of Infectious Disease, Children’s Hospital of Soochow University, Suzhou, 215003 China
| | - Yuqin Li
- Department of Infectious Disease, Children’s Hospital of Soochow University, Suzhou, 215003 China
| | - Qiu Chen
- School of Radiation Medicine and Protection, Soochow University, Suzhou, 215123 China
| | - Yanqun Jiang
- Department of Infectious Disease, Children’s Hospital of Soochow University, Suzhou, 215003 China
| | - Chu Chu
- Department of Infectious Disease, Children’s Hospital of Soochow University, Suzhou, 215003 China
| | - Ying Ding
- Department of Infectious Disease, Children’s Hospital of Soochow University, Suzhou, 215003 China
| | - Yixue Yu
- Department of Infectious Disease, Children’s Hospital of Soochow University, Suzhou, 215003 China
| | - Yujie Fan
- Department of Infectious Disease, Children’s Hospital of Soochow University, Suzhou, 215003 China
| | - Jinjin Shi
- Department of Infectious Disease, Children’s Hospital of Soochow University, Suzhou, 215003 China
| | - Yali Luo
- Department of Infectious Disease, Children’s Hospital of Soochow University, Suzhou, 215003 China
| | - Weifang Zhou
- Department of Infectious Disease, Children’s Hospital of Soochow University, Suzhou, 215003 China
| |
Collapse
|
9
|
Chen CC, Chen PS, Yang CY. Relationship between fine particulate air pollution exposure and human adult life expectancy in Taiwan. JOURNAL OF TOXICOLOGY AND ENVIRONMENTAL HEALTH. PART A 2019; 82:826-832. [PMID: 31438783 DOI: 10.1080/15287394.2019.1658386] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Among the air pollutants, particulate matter with an aerodynamic diameter less than 2.5 um (PM2.5) is of particular interest to environmental medicine as epidemiologic studies consistently reported that long-term exposure to PM2.5 is associated with increased risk of premature death in adults. Life expectancy is a well-documented and important measure of overall public health policy. However, few investigators examined the relationship between PM2.5 levels and adult life expectancy. In this Taiwan-wide study, county-level annual mean PM2.5 concentrations data were collected concomitantly with potential confounding variables including demographic and socioeconomic status, as well as smoking prevalence. Subsequently, these PM2.5 data were analyzed with respect to county-level adult life expectancy data for the period 2010 to 2017. Linear regression was used to determine the relationship between PM2.5 and life expectancy in adults. Residents residing in the counties characterized as containing higher levels of PM2.5 exhibited significantly reduced life expectancy after controlling for potential confounders. For each 10 ug/m3 increase in PM2.5 there was an estimated mean decrease in life expectancy in adults of 0.3 years. The results of this study shed light on the relationship between fine particulate air pollution exposure and risk to human health in Taiwan.
Collapse
Affiliation(s)
- Chih-Cheng Chen
- Department of Pediatrics, College of Medicine , Kaohsiung , Taiwan
- Chang-Gung Memorial Hospital and Chang-Gung University , Kaohsiung , Taiwan
| | - Pei-Shih Chen
- Department of Public Health, College of Health Sciences, Kaohsiung Medical University , Kaohsiung , Taiwan
- Research Center for Environmental Medicine, Kaohsiung Medical University , Kaohsiung City , Taiwan
| | - Chun-Yuh Yang
- Department of Public Health, College of Health Sciences, Kaohsiung Medical University , Kaohsiung , Taiwan
- National Institute of Environmental Health Sciences, National Health Research Institute , Miaoli , Taiwan
| |
Collapse
|
10
|
City-Specific Air Quality Warnings for Improved Asthma Self-Management. Am J Prev Med 2019; 57:165-171. [PMID: 31239087 DOI: 10.1016/j.amepre.2019.03.022] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/26/2018] [Revised: 03/24/2019] [Accepted: 03/25/2019] [Indexed: 11/20/2022]
Abstract
INTRODUCTION This study presents a framework for identifying "high-risk" days for asthma attacks associated with elevated concentrations of criteria pollutants using local information to warn citizens on days when the concentrations differ from Environmental Protection Agency Air Quality Index (AQI) warnings. Studies that consider the unique mixture of pollutants and the health data specific to a city provide additional information for asthma self-management. This framework is applied to air pollution and asthma data to identify supplemental warning days in Houston, Texas. METHODS A four-step framework was established to identify days with pollutant levels that pose meaningful increased risk for asthma attacks compared with baseline. Historical associations between 18,542 ambulance-treated asthma attacks and air pollutant concentrations in Houston, Texas (2004-2016; analyzed in 2018), were analyzed using a case-crossover study design with conditional logistic regression. Days with historically high associations between pollution and asthma attacks were identified as supplemental warning days. RESULTS Days with 8-hour maximum ozone >66.6 parts per billion for the 3 previous days and same-day 24-hour nitrogen dioxide >19.3 parts per billion pose an RR of 15% above baseline; concentrations above these levels pose an increased risk of 15% (RR=1.15, 95% CI=1.14, 1.16) and 30% (RR=1.30, 95% CI=1.29, 1.32), respectively. These warnings add an additional 12% days per year over the AQI warnings. CONCLUSIONS Houston uses this framework to identify supplemental air quality warnings to improve asthma self-management. Supplemental days reflect risk lower than the National Ambient Air Quality Standards and consecutive poor air quality days, differing from the AQI.
Collapse
|
11
|
Lee W, Jeong SY, Gu MJ, Lim JS, Park EK, Baek MC, Kim JS, Hahn D, Bae JS. Inhibitory effects of compounds isolated from Dioscorea batatas Decne peel on particulate matter-induced pulmonary injury in mice. JOURNAL OF TOXICOLOGY AND ENVIRONMENTAL HEALTH. PART A 2019; 82:727-740. [PMID: 31342870 DOI: 10.1080/15287394.2019.1646174] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Particulate matter 2.5 (PM2.5), with an aerodynamic diameter of ≤2.5 μm, is the primary air pollutant that plays a key role associated with lung injury produced by loss of vascular barrier integrity. Dioscorea batatas Decne (Chinese yam), a perennial plant belonging to Dioscoreaceae family, is widely cultivated in tropical and subtropical regions across Asia. Both aerial parts and root of D. batatas are consumed for nutritional and medicinal purposes. The aim of this study was to (1) identify the bioactive compounds present in D. batatas peel which may be responsible for inhibition of PM2.5-induced pulmonary inflammation in mice and (2) examine in vitro mechanisms underlying the observed effects of these compounds on mouse lung microvascular endothelial cells. The measured parameters include permeability, leukocyte migration, proinflammatory protein activation, reactive oxygen species (ROS) generation, and histology. Two phenanthrene compounds, 2,7-dihydroxy-4,6-dimethoxyphenanthrene (1) and 6,7-dihydroxy-2,4-dimethoxyphenanthrene (2) were isolated from D. batatas peels. Both these phenanthrene compounds exhibited significant scavenging activity against PM2.5-induced ROS and inhibited ROS-induced activation of p38 mitogen-activated protein kinase. In addition, enhancement of Akt pathway, involved in the maintenance of endothelial integrity, was noted. These phenanthrene compounds also reduced vascular protein leakage, leukocyte infiltration, and proinflammatory cytokine release in the bronchoalveolar lavage fluid obtained from PM2.5-induced lung tissues. Evidence thus indicates that phenanthrene compounds derived from D. batatas may exhibit protective effects against PM2.5-induced inflammatory lung injury and vascular hyperpermeability in mice.
Collapse
Affiliation(s)
- Wonhwa Lee
- a College of Pharmacy, CMRI, Research Institute of Pharmaceutical Sciences, BK21 Plus KNU Multi-Omics based Creative Drug Research Team, Kyungpook National University , Daegu , Republic of Korea
- b Aging Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB) , Daejeon , Republic of Korea
| | - So Yeon Jeong
- a College of Pharmacy, CMRI, Research Institute of Pharmaceutical Sciences, BK21 Plus KNU Multi-Omics based Creative Drug Research Team, Kyungpook National University , Daegu , Republic of Korea
| | - Myeong Ju Gu
- c School of Food Science and Biotechnology, College of Agriculture and Life Sciences, Kyungpook National University , Daegu , Republic of Korea
| | - Ji Sun Lim
- c School of Food Science and Biotechnology, College of Agriculture and Life Sciences, Kyungpook National University , Daegu , Republic of Korea
| | - Eui Kyun Park
- d Department of Pathology and Regenerative Medicine, School of Dentistry, Kyungpook National University , Daegu , Republic of Korea
| | - Moon-Chang Baek
- e Department of Molecular Medicine, CMRI, School of Medicine, Kyungpook National University , Daegu , Republic of Korea
| | - Jong-Sang Kim
- c School of Food Science and Biotechnology, College of Agriculture and Life Sciences, Kyungpook National University , Daegu , Republic of Korea
- f Institute of Agricultural Science and Technology, College of Agriculture and Life Sciences, Kyungpook National University , Daegu , Republic of Korea
| | - Dongyup Hahn
- c School of Food Science and Biotechnology, College of Agriculture and Life Sciences, Kyungpook National University , Daegu , Republic of Korea
- f Institute of Agricultural Science and Technology, College of Agriculture and Life Sciences, Kyungpook National University , Daegu , Republic of Korea
| | - Jong-Sup Bae
- a College of Pharmacy, CMRI, Research Institute of Pharmaceutical Sciences, BK21 Plus KNU Multi-Omics based Creative Drug Research Team, Kyungpook National University , Daegu , Republic of Korea
| |
Collapse
|
12
|
Hassan L, Pecht T, Goldstein N, Haim Y, Kloog I, Yarza S, Sarov B, Novack V. The effects of ambient particulate matter on human adipose tissue. JOURNAL OF TOXICOLOGY AND ENVIRONMENTAL HEALTH. PART A 2019; 82:564-576. [PMID: 31242808 DOI: 10.1080/15287394.2019.1634381] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
The effects of particulate matter (PM) air pollution on adipose tissue have mainly been studied in animal models. The aim of this study was to examine the potential associations between PM exposure and 25 cellular markers in human omental (OM) and subcutaneous (SC) adipose tissue. The PM exposure assessments for both PM2.5 (PM <2.5 μm in diameter) and PM10 (<10 μm) were based upon a novel hybrid satellite-based spatio-temporally resolved model. We calculated the PM exposure above the background threshold for 1 week (acute phase), 3 and 6 months (intermediate phase), and 1 year (chronic phase) prior to tissue harvesting and tested the associations with adipose cell metabolic effects using multiple linear regressions and heat maps strategy. Chemokine levels were found to increase after acute and intermediate exposure duration to PM10. The levels of stress signaling biomarkers in the SC and OM tissues rose after acute exposure to PM10 and PM2.5. Macrophage and leucocyte counts were associated with severity of PM exposure in all three duration groups. Adipocyte diameter decreased in all exposure periods. Our results provide evidence for significant contribution of air pollutants exposure to adipose tissue inflammation as well as for pathophysiological mechanisms of metabolic dysregulation that may be involved in the observed responses.
Collapse
Affiliation(s)
- Lior Hassan
- a Environmental Health Research Institute, Soroka University Medical Center and Faculty of Health Sciences, Ben-Gurion University of the Negev , Beer-Sheva , Israel
| | - Tal Pecht
- b Department of Clinical Biochemistry and Pharmacology, Ben-Gurion University of the Negev , Beer-Sheva , Israel
| | - Nir Goldstein
- b Department of Clinical Biochemistry and Pharmacology, Ben-Gurion University of the Negev , Beer-Sheva , Israel
| | - Yulia Haim
- b Department of Clinical Biochemistry and Pharmacology, Ben-Gurion University of the Negev , Beer-Sheva , Israel
| | - Itai Kloog
- c Department of Geography and Environmental Development, Ben-Gurion University of the Negev , Beer-Sheva , Israel
| | - Shaked Yarza
- a Environmental Health Research Institute, Soroka University Medical Center and Faculty of Health Sciences, Ben-Gurion University of the Negev , Beer-Sheva , Israel
| | - Batia Sarov
- d Department of Public Health, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Victor Novack
- a Environmental Health Research Institute, Soroka University Medical Center and Faculty of Health Sciences, Ben-Gurion University of the Negev , Beer-Sheva , Israel
| |
Collapse
|
13
|
Tsai SS, Chiu HF, Yang CY. Ambient Air Pollution and Hospital Admissions for Peptic Ulcers in Taipei: A Time-Stratified Case-Crossover Study. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2019; 16:ijerph16111916. [PMID: 31151209 PMCID: PMC6603676 DOI: 10.3390/ijerph16111916] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 04/10/2019] [Revised: 05/23/2019] [Accepted: 05/26/2019] [Indexed: 01/19/2023]
Abstract
Very few studies have been performed to determine whether there is a relationship between air pollution and increases in hospitalizations for peptic ulcer, and for those that have occurred, their results may not be completely relevant to Taiwan, where the mixture of ambient air pollutants differ. We performed a time-stratified case-crossover study to investigate the possible association between air pollutant levels and hospital admissions for peptic ulcer in Taipei, Taiwan. To do this, we collected air pollution data from Taiwan's Environmental Protection Agency and hospital admissions for peptic ulcer data for the years 2009-2013 from Taiwan's National Health Insurance's research database. We used conditional logistic regression to analyze the possible association between the two, taking temperature and relative humidity into account. Risk was expressed as odds ratios and significance was expressed with 95% confidence intervals. In our single pollutant model, peptic ulcer admissions were significantly associated with all pollutants (PM10, PM2.5, SO2, NO2, CO, and O3) on warm days (>23 °C). On cool days (<23 °C), peptic ulcer admissions were significantly associated with PM10, NO2, and O3. In our two-pollutant models, peptic ulcer admissions were significantly associated NO2 and O3 when combined with each of the other pollutants on warm days, and with PM10, NO2, and O3 on cool days. It was concluded that the likelihood of peptic ulcer hospitalizations in Taipei rose significantly with increases in air pollutants during the study period.
Collapse
Affiliation(s)
- Shang-Shyue Tsai
- Department of Healthcare Administration, I-Shou University, Kaohsiung 82445, Taiwan.
| | - Hui-Fen Chiu
- Department of Pharmacology, College of Medicine, Kaohsiung Medical University, Kaohsiung 80708, Taiwan.
| | - Chun-Yuh Yang
- Department of Public Health, College of Health Sciences, Kaohsiung Medical University, Kaohsiung 80708, Taiwan.
- National Institute of Environmental Health Sciences, National Health Research Institute, Miaoli 35053, Taiwan.
| |
Collapse
|
14
|
Bass VL, Snow SJ, Soukup JM, Schladweiler MC, Ghio AJ, Kodavanti UP, Madden MC. 12-hydroxy oleic acid impairs endothelium-dependent vasorelaxation. JOURNAL OF TOXICOLOGY AND ENVIRONMENTAL HEALTH. PART A 2019; 82:383-386. [PMID: 30983526 PMCID: PMC7402385 DOI: 10.1080/15287394.2019.1603282] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Diesel and biodiesel emissions exposures reduce vascular responsiveness in vivo, but the components of PM responsible for this effect are poorly understood. Fatty acids (FAs) represent a significant fraction of the compounds that make up organic combustion by-products, and may be involved in vascular responses following inhalation. It was hypothesized that vascular tissue exposed to a model FA might impair responses to vasoactive agonists ex vivo. Rat aortic rings were exposed to oleic acid or 12-hydroxy oleic acid and responses determined by myography. 12-Hydroxy oleic acid was found to significantly reduce endothelium-dependent vasodilation at sub-cytotoxic concentrations. This approach demonstrates the potential for FAs, especially oxidized forms, to play a role in the vascular responses observed following air pollution exposure.
Collapse
Affiliation(s)
- Virginia L. Bass
- Department of Environmental Sciences and Engineering, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Samantha J. Snow
- Environmental Public Health Division, NHEERL, US Environmental Protection Agency, Research Triangle Park, NC, USA
| | - Joleen M. Soukup
- Environmental Public Health Division, NHEERL, US Environmental Protection Agency, Research Triangle Park, NC, USA
| | - Mette C. Schladweiler
- Environmental Public Health Division, NHEERL, US Environmental Protection Agency, Research Triangle Park, NC, USA
| | - Andrew J. Ghio
- Environmental Public Health Division, NHEERL, US Environmental Protection Agency, Research Triangle Park, NC, USA
| | - Urmila P. Kodavanti
- Environmental Public Health Division, NHEERL, US Environmental Protection Agency, Research Triangle Park, NC, USA
| | - Michael C. Madden
- Environmental Public Health Division, NHEERL, US Environmental Protection Agency, Research Triangle Park, NC, USA
| |
Collapse
|
15
|
Lee W, Ku SK, Kim JE, Cho SH, Song GY, Bae JS. Inhibitory effects of protopanaxatriol type ginsenoside fraction (Rgx365) on particulate matter-induced pulmonary injury. JOURNAL OF TOXICOLOGY AND ENVIRONMENTAL HEALTH. PART A 2019; 82:338-350. [PMID: 30917762 DOI: 10.1080/15287394.2019.1596183] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Inhalation of fine particulate matter (PM2.5) is associated with elevated pulmonary injury attributed to the loss of vascular barrier integrity. Black ginseng (BG), steamed 9 times and dried ginseng, and its major protopanaxatriol type ginsenosides (ginsenoside Rg4, Rg6, Rh4, Rh1, and Rg2) exhibited various biological activities including anti-septic, anti-diabetic, wound healing, immune-stimulatory, and anti-antioxidant activity. The aim of this study was to investigate the beneficial effects of Rgx365 (a protopanaxatriol type rare ginsenosides fraction) on PM-induced lung endothelial cell (EC) barrier disruption and pulmonary inflammation. Permeability, leukocyte migration, activation of proinflammatory proteins, generation of reactive oxygen species (ROS), and histology were examined in PM2.5-treated EC and mice. Rgx365 significantly scavenged PM2.5-induced ROS, inhibited ROS-induced activation of p38 mitogen-activated protein kinase (MAPK), activated Akt in purified pulmonary EC, which helped maintain endothelial integrity. Further, Rgx365 reduced vascular protein leakage, leukocyte infiltration, and proinflammatory cytokine release in bronchoalveolar lavage fluids in PM-induced mouse lung tissues. Data suggested that Rgx365 might exhibit protective effects in PM-induced inflammatory lung injury and vascular hyperpermeability.
Collapse
Affiliation(s)
- Wonhwa Lee
- a Aging Research Center , Korea Research Institute of Bioscience and Biotechnology (KRIBB) , Deajeon , Republic of Korea
- b College of Pharmacy, CMRI, Research Institute of Pharmaceutical Sciences, BK21 Plus KNU Multi-Omics based Creative Drug Research Team , Kyungpook National University , Daegu , Republic of Korea
| | - Sae-Kwang Ku
- c Department of Histology and Anatomy , College of Korean Medicine, Daegu Haany University , Gyeongsan-si , Republic of Korea
| | - Ji-Eun Kim
- d College of Pharmacy , Chungnam National University , Daejon , Republic of Korea
| | - Soo-Hyun Cho
- d College of Pharmacy , Chungnam National University , Daejon , Republic of Korea
| | - Gyu-Yong Song
- d College of Pharmacy , Chungnam National University , Daejon , Republic of Korea
| | - Jong-Sup Bae
- b College of Pharmacy, CMRI, Research Institute of Pharmaceutical Sciences, BK21 Plus KNU Multi-Omics based Creative Drug Research Team , Kyungpook National University , Daegu , Republic of Korea
| |
Collapse
|
16
|
Yang CY, Weng YH, Chiu YW. Relationship between ozone air pollution and daily suicide mortality: a time-stratified case-crossover study in Taipei. JOURNAL OF TOXICOLOGY AND ENVIRONMENTAL HEALTH. PART A 2019; 82:261-267. [PMID: 30870114 DOI: 10.1080/15287394.2019.1589109] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Several studies suggested short-term exposure to air pollution might be associated with suicide mortality, although results have been inconsistent and vary depending upon the type of air contaminants. While seasonal variation associated with suicide was reported to occur and that in the spring and early summer there are peaks in ozone (O3) distribution, the relationship between these two parameters is not known. The aim of this study was to examine the potential association between O3 levels and daily mortality rate related to suicide in Taipei for the period 2004-2008 using a time-stratified case-crossover analysis. In our single pollutant model without adjustment for other pollutants, the risk of suicide increased by 11% on warm days and 15% on cool days for each interquartile range (IQR) rise in O3 concentration, respectively. The relationship was positive but did not reach significance. In our two-pollutant models, O3 remained non-significant on warm days after inclusion of one of any other ambient air contaminants into the model. However, on cool days, a significant association was found between O3 levels and enhanced risk of mortality due to suicide after nitrogen dioxide (NO2) or carbon monoxide (CO) were included. The overall positive but not significant findings of elevated risk of mortality frequently attributed to suicide on days with higher O3 levels suggest that outdoor exposures to this gaseous contaminant may contribute to increases in daily mortality rate related to suicide.
Collapse
Affiliation(s)
- Chun-Yuh Yang
- a Department of Public Health, College of Health Sciences , Kaohsiung Medical University , Kaohsiung , Taiwan
- b National Institute of Environmental Health Sciences, National Health Research Institute , Miaoli , Taiwan
| | - Yi-Hao Weng
- c Division of Neonatology, Department of Pediatrics, Chang Gung Memorial Hospital , Chang Gung University College of Medicine , Taipei , Taiwan
| | - Ya-Wen Chiu
- d Master Program in Global Health and Development, College of Public Health and Nutrition , Taipei Medical University , Taipei , Taiwan
| |
Collapse
|
17
|
Snow SJ, Phillips PM, Ledbetter A, Johnstone AF, Schladweiler MC, Gordon CJ, Kodavanti UP. The influence of maternal and perinatal high-fat diet on ozone-induced pulmonary responses in offspring. JOURNAL OF TOXICOLOGY AND ENVIRONMENTAL HEALTH. PART A 2019; 82:86-98. [PMID: 30755101 PMCID: PMC10926063 DOI: 10.1080/15287394.2018.1564101] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
There is growing interest in understanding how maternal diet might affect the sensitivity of offspring to environmental exposures. Previous studies demonstrated that adult rat offspring (approximately 6-months-old) from dams given a high-fat diet (HFD) prior to, during, and after pregnancy displayed elevated pulmonary responses to an acute ozone (O3) exposure. The aim of this study was to examine the influence of maternal and perinatal HFD on pulmonary and metabolic responses to O3 in male and female young-adult offspring (approximately 3-month old). One-month-old F0 female Long-Evans rats commenced HFD (60% kcal from fat) or control diet (CD; 10.5% kcal from fat) and were bred on PND 72. Offspring were maintained on respective HFD or CD until PND 29 when all groups were switched to CD. The 3-months-old female and male offspring (n = 10/group) were exposed to air or 0.8 ppm O3 for 5hr/day for 2 consecutive days. Maternal and perinatal HFD significantly increased body weight and body fat % in offspring regardless of gender. Ozone exposure, but not maternal and perinatal diet, induced hyperglycemia and glucose intolerance in the offspring. Ozone-induced alterations in pulmonary function were exacerbated by maternal and perinatal HFD in both offspring genders. Pulmonary injury/inflammation markers in response to O3 exposure such as bronchoalveolar lavage fluid total protein, lactate dehydrogenase, total cells, and neutrophils were further augmented in offspring (males>females) from dams fed the HFD. Data suggest that maternal and perinatal HFD may enhance the susceptibility of offspring to O3-induced pulmonary injury and that these effects may be sex-specific.
Collapse
Affiliation(s)
- Samantha J. Snow
- Environmental Public Health Division, US Environmental Protection Agency, Durham, North Carolina, USA
| | - Pamela M. Phillips
- Toxicity Assessment Division, US Environmental Protection Agency, Durham, North Carolina, USA
| | - Allen Ledbetter
- Environmental Public Health Division, US Environmental Protection Agency, Durham, North Carolina, USA
| | - Andrew F.M. Johnstone
- Toxicity Assessment Division, US Environmental Protection Agency, Durham, North Carolina, USA
| | - Mette C. Schladweiler
- Environmental Public Health Division, US Environmental Protection Agency, Durham, North Carolina, USA
| | - Christopher J. Gordon
- Toxicity Assessment Division, US Environmental Protection Agency, Durham, North Carolina, USA
| | - Urmila P. Kodavanti
- Environmental Public Health Division, US Environmental Protection Agency, Durham, North Carolina, USA
| |
Collapse
|
18
|
Slezakova K, Peixoto C, Carmo Pereira MD, Morais S. (Ultra) Fine particle concentrations and exposure in different indoor and outdoor microenvironments during physical exercising. JOURNAL OF TOXICOLOGY AND ENVIRONMENTAL HEALTH. PART A 2019; 82:591-602. [PMID: 31288676 DOI: 10.1080/15287394.2019.1636494] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
Although regular exercise improves overall well-being, increased physical activity results in enhanced breathing which consequently leads to elevated exposure to a variety of air pollutants producing adverse effects. It is well-known that one of these ambient air contaminants is ultrafine particles (UFP). Thus, this study aimed to (1) examine exposure to particle number concentrations (PNC) in size ranging from N20-1000 nm in different sport environments and (2) estimate the respective inhalation doses across varying activity scenarios based upon the World Health Organization recommendations for physical activity. PNC were continuously monitored (TSI P-Trak™ condensation particle counter) outdoors (Out1-Out2) and indoors (Ind1-Ind2; fitness clubs) over 4 weeks. Outdoor PNC (total median 12 563 # cm-3; means of 20 367 # cm-3 at Out1 and 7 122 # cm-3 at Out2) were approximately 1.6-fold higher than indoors (total median 7 653 # cm-3; means of 11 861 # cm-3 at Ind1 and 14 200 # cm-3 at Ind2). The lowest doses were inhaled during holistic group classes (7.91 × 107-1.87 × 108 # per kg body weight) whereas exercising with mixed cardio and strength training led to approximately 1.8-fold higher levels. In order to optimize the health benefit of exercises, environmental characteristics of the locations at which physical activities are conducted need to be considered.
Collapse
Affiliation(s)
- Klara Slezakova
- a LEPABE, Faculdade de Engenharia, Universidade do Porto , Porto , Portugal
- b REQUIMTE-LAQV, Instituto Superior de Engenharia do Porto, Instituto Politécnico do Porto , Porto , Portugal
| | - Cátia Peixoto
- b REQUIMTE-LAQV, Instituto Superior de Engenharia do Porto, Instituto Politécnico do Porto , Porto , Portugal
| | | | - Simone Morais
- b REQUIMTE-LAQV, Instituto Superior de Engenharia do Porto, Instituto Politécnico do Porto , Porto , Portugal
| |
Collapse
|
19
|
Kurtz ML, Astort F, Lezon C, Ferraro SA, Maglione GA, Orona NS, Friedman SM, Boyer PM, Tasat DR. Oxidative stress response to air particle pollution in a rat nutritional growth retardation model. JOURNAL OF TOXICOLOGY AND ENVIRONMENTAL HEALTH. PART A 2018; 81:1028-1040. [PMID: 30239279 DOI: 10.1080/15287394.2018.1519747] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2018] [Revised: 08/31/2018] [Accepted: 09/01/2018] [Indexed: 06/08/2023]
Abstract
Air pollution consisting of gases and particulate matter-(PM) represents a health problem in cities worldwide. However, air pollution does not impact equally all individuals, as children appear to be more vulnerable subpopulations. Air pollution and malnutrition are two distinct factors that have been associated with oxidative damage. Therefore, the interaction between environmental exposure and nutritional status in populations at risk needs to be explored. The aim of this study was to examine oxidative metabolism in lung, heart and liver in malnourished young rats exposed to residual oil fly ash (ROFA). A Nutritional Growth Retardation (NGR) model was developed in weanling male rats placed on a 20% restricted balanced diet for 4 weeks. Then, NGR and control rats were intranasally instilled with either ROFA (1mg/kg BW) or phosphate buffered saline (PBS). Twenty-four hr post-exposure lung, heart and liver were excised, and serum collected. ROFA induced lung and liver inflammation in control and NGR animals as evidenced by lung polymorphonuclear neutrophil (PMN) recruitment and alveolar space reduction accompanied by liver lymphocyte and binucleated hepatocyte level increase. In lung and liver, antioxidant defense mechanisms reduced lipoperoxidation. In contrast, only in NGR animals did ROFA exposure alter heart oxidative metabolism leading to lipid peroxidation. Although histological and biochemical tissue alterations were detected, no marked changes in serum liver and heart systemic biomarkers were observed. In conclusion, NGR animals responded differently to PM exposure than controls suggesting that nutritional status plays a key role in responsiveness to ambient air contaminants.
Collapse
Affiliation(s)
- Melisa L Kurtz
- a Center for The Studies in Health and Environment, School of Science and Technology , National University of San Martín , San Martín , Buenos Aires , Argentina
- b Committee for Scientific Research , Buenos Aires , Argentina
| | - Francisco Astort
- a Center for The Studies in Health and Environment, School of Science and Technology , National University of San Martín , San Martín , Buenos Aires , Argentina
- b Committee for Scientific Research , Buenos Aires , Argentina
| | - Christian Lezon
- c Department of Physiology , School of Dentistry, University of Buenos Aires , Buenos Aires , Argentina
| | - Sebastián A Ferraro
- a Center for The Studies in Health and Environment, School of Science and Technology , National University of San Martín , San Martín , Buenos Aires , Argentina
- b Committee for Scientific Research , Buenos Aires , Argentina
| | - Guillermo A Maglione
- a Center for The Studies in Health and Environment, School of Science and Technology , National University of San Martín , San Martín , Buenos Aires , Argentina
- d Department of Histology and Embryology , School of Dentistry, University of Buenos Aires , Buenos Aires , Argentina
| | - Nadia S Orona
- a Center for The Studies in Health and Environment, School of Science and Technology , National University of San Martín , San Martín , Buenos Aires , Argentina
- b Committee for Scientific Research , Buenos Aires , Argentina
| | - Silvia M Friedman
- e Department of General and Oral Biochemistry , School of Dentistry, University of Buenos Aires , Buenos Aires , Argentina
| | - Patricia M Boyer
- c Department of Physiology , School of Dentistry, University of Buenos Aires , Buenos Aires , Argentina
| | - Deborah R Tasat
- a Center for The Studies in Health and Environment, School of Science and Technology , National University of San Martín , San Martín , Buenos Aires , Argentina
- d Department of Histology and Embryology , School of Dentistry, University of Buenos Aires , Buenos Aires , Argentina
| |
Collapse
|
20
|
Chen CC, Yang CY. Effects of ambient air pollution exposure on frequency of hospital admissions for appendicitis in Taipei, Taiwan. JOURNAL OF TOXICOLOGY AND ENVIRONMENTAL HEALTH. PART A 2018; 81:854-860. [PMID: 30047832 DOI: 10.1080/15287394.2018.1498276] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/05/2018] [Accepted: 07/04/2018] [Indexed: 06/08/2023]
Abstract
The relationship between exposure to ambient air pollutants and hospital admissions for appendicitis is not known. This study examined whether an association existed between air contaminant levels and frequency of hospital admissions for appendicitis in Taipei, Taiwan. Ambient air pollution and hospital admission data for Taipei were obtained for 2009-2013. Relative risk (RR) of hospital admissions was estimated using a case-crossover approach, controlling for weather variables, day of the week, seasonality, and long-term time trends. In the single pollutant model, on warm days (> 23°C), number of appendicitis admissions was significantly associated with particulate matter (PM2.5), nitrogen dioxide (NO2), carbon monoxide (CO), and ozone (O3). On cool days (< 23°C), a significant rise in number of admissions for appendicitis was related to PM10, NO2, and O3 concentrations. In the two-pollutant models, on warm days, NO2 and O3 were significantly associated with increased number of admissions for appendicitis when combined with each of the other pollutants. On cool days, NO2, O3, and PM10 remained significant for higher appendicitis admission cases in all two-pollutant models. In conclusion, higher levels of ambient air pollutants may be associated with increase in the risk of hospital admissions for appendicitis in Taipei.
Collapse
Affiliation(s)
- Chih-Cheng Chen
- a Department of Pediatrics, College of Medicine, Kaohsiung Chang-Gung , Memorial Hospital and Chang-Gung University , Kaohsiung Taiwan
| | - Chun-Yuh Yang
- b Department of Public Health, College of Health Sciences , Kaohsiung Medical University , Kaohsiung , Taiwan
- c National Institute of Environmental Health Sciences , National Health Research Institute , Miaoli , Taiwan
| |
Collapse
|
21
|
Pleil JD, Wallace MAG, Stiegel MA, Funk WE. Human biomarker interpretation: the importance of intra-class correlation coefficients (ICC) and their calculations based on mixed models, ANOVA, and variance estimates. JOURNAL OF TOXICOLOGY AND ENVIRONMENTAL HEALTH. PART B, CRITICAL REVIEWS 2018; 21:161-180. [PMID: 30067478 PMCID: PMC6704467 DOI: 10.1080/10937404.2018.1490128] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Human biomonitoring is the foundation of environmental toxicology, community public health evaluation, preclinical health effects assessments, pharmacological drug development and testing, and medical diagnostics. Within this framework, the intra-class correlation coefficient (ICC) serves as an important tool for gaining insight into human variability and responses and for developing risk-based assessments in the face of sparse or highly complex measurement data. The analytical procedures that provide data for clinical and public health efforts are continually evolving to expand our knowledge base of the many thousands of environmental and biomarker chemicals that define human systems biology. These chemicals range from the smallest molecules from energy metabolism (i.e., the metabolome), through larger molecules including enzymes, proteins, RNA, DNA, and adducts. In additiona, the human body contains exogenous environmental chemicals and contributions from the microbiome from gastrointestinal, pulmonary, urogenital, naso-pharyngeal, and skin sources. This complex mixture of biomarker chemicals from environmental, human, and microbiotic sources comprise the human exposome and generally accessed through sampling of blood, breath, and urine. One of the most difficult problems in biomarker assessment is assigning probative value to any given set of measurements as there are generally insufficient data to distinguish among sources of chemicals such as environmental, microbiotic, or human metabolism and also deciding which measurements are remarkable from those that are within normal human variability. The implementation of longitudinal (repeat) measurement strategies has provided new statistical approaches for interpreting such complexities, and use of descriptive statistics based upon intra-class correlation coefficients (ICC) has become a powerful tool in these efforts. This review has two parts; the first focuses on the history of repeat measures of human biomarkers starting with occupational toxicology of the early 1950s through modern applications in interpretation of the human exposome and metabolic adverse outcome pathways (AOPs). The second part reviews different methods for calculating the ICC and explores the strategies and applications in light of different data structures.
Collapse
Affiliation(s)
- Joachim D. Pleil
- Office of Research and Development, US Environmental Protection Agency (EPA), Research Triangle Park, NC, USA
| | - M. Ariel Geer Wallace
- Office of Research and Development, US Environmental Protection Agency (EPA), Research Triangle Park, NC, USA
| | - Matthew A. Stiegel
- Department of Occupational and Environmental Safety, Duke University Medical Center, Durham, NC, USA
| | - William E. Funk
- Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
| |
Collapse
|