1
|
Rydell A, Janson C, Lisspers K, Lin YT, Ärnlöv J. FEV 1 and FVC as robust risk factors for cardiovascular disease and mortality: Insights from a large population study. Respir Med 2024; 227:107614. [PMID: 38670319 DOI: 10.1016/j.rmed.2024.107614] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Revised: 03/26/2024] [Accepted: 03/28/2024] [Indexed: 04/28/2024]
Abstract
INTRODUCTION Data is limited on influence of forced expiratory volume in 1 s (FEV1) and forced vital capacity (FVC) in a large adult population, including individuals with normal spirometry at baseline. METHODS Using the UK Biobank cohort, a multivariable Cox regression analysis was conducted on 406,424 individuals to examine the association between FEV1 and FVC, categorized into three groups based on their percentage of predicted values (%pred) (≥80, 60-80 and < 60), and overall mortality, cardiovascular mortality, myocardial infarction, stroke, and heart failure over approximately 12.5 years. Moreover, a subgroup analysis was conducted on 295,459 individuals who had normal spirometry. RESULTS Reduced FEV1 and FVC %pred values were associated with an elevated risk across all studied outcomes. Individuals with the lowest FEV1 and FVC %pred values (<60 %) exhibited HR of 1.83 (95 % CI 1.74-1.93) and 1.98 (95 % CI 1.76-2.22) for overall mortality, and 1.96 (95 % CI 1.83-2.1) and 2.26 (95 % CI 1.94-2.63) for cardiovascular mortality. Moreover, a graded association was observed between lower FEV1 and FVC %pred, even among never smokers and individuals with normal spirometry at baseline. DISCUSSION Reduced FEV1 and FVC represent robust risk factors for cardiovascular disease and mortality. The fact that the increased risk was evident also at FEV1 and FVC levels exceeding 80 %pred challenges the contemporary classification of lung function categories and the notion that the entire FEV1- and FVC-range above 80 % of predicted represents a normal lung function.
Collapse
Affiliation(s)
- Andreas Rydell
- Division of Family Medicine and Primary Care, Department of Neurobiology, Care Sciences and Society (NVS), Karolinska Institute, Huddinge, Sweden; Centrum För Klinisk Forskning, Region Dalarna, Falun, Sweden.
| | - Christer Janson
- Department of Medical Sciences, Respiratory, Allergy and Sleep Research Uppsala University, Uppsala, Sweden
| | - Karin Lisspers
- Department of Public Health and Caring Sciences, Family Medicine and Preventive Medicine, Uppsala University, Uppsala, Sweden
| | - Yi-Ting Lin
- Division of Family Medicine and Primary Care, Department of Neurobiology, Care Sciences and Society (NVS), Karolinska Institute, Huddinge, Sweden
| | - Johan Ärnlöv
- Division of Family Medicine and Primary Care, Department of Neurobiology, Care Sciences and Society (NVS), Karolinska Institute, Huddinge, Sweden; Centrum För Klinisk Forskning, Region Dalarna, Falun, Sweden; School of Health and Welfare, Dalarna University, Falun, Sweden
| |
Collapse
|
2
|
Bhat AA, Afzal M, Goyal A, Gupta G, Thapa R, Almalki WH, Kazmi I, Alzarea SI, Shahwan M, Paudel KR, Ali H, Sahu D, Prasher P, Singh SK, Dua K. The impact of formaldehyde exposure on lung inflammatory disorders: Insights into asthma, bronchitis, and pulmonary fibrosis. Chem Biol Interact 2024; 394:111002. [PMID: 38604395 DOI: 10.1016/j.cbi.2024.111002] [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: 02/16/2024] [Revised: 03/27/2024] [Accepted: 04/07/2024] [Indexed: 04/13/2024]
Abstract
Lung inflammatory disorders are a major global health burden, impacting millions of people and raising rates of morbidity and death across many demographic groups. An industrial chemical and common environmental contaminant, formaldehyde (FA) presents serious health concerns to the respiratory system, including the onset and aggravation of lung inflammatory disorders. Epidemiological studies have shown significant associations between FA exposure levels and the incidence and severity of several respiratory diseases. FA causes inflammation in the respiratory tract via immunological activation, oxidative stress, and airway remodelling, aggravating pre-existing pulmonary inflammation and compromising lung function. Additionally, FA functions as a respiratory sensitizer, causing allergic responses and hypersensitivity pneumonitis in sensitive people. Understanding the complicated processes behind formaldehyde-induced lung inflammation is critical for directing targeted strategies aimed at minimizing environmental exposures and alleviating the burden of formaldehyde-related lung illnesses on global respiratory health. This abstract explores the intricate relationship between FA exposure and lung inflammatory diseases, including asthma, bronchitis, allergic inflammation, lung injury and pulmonary fibrosis.
Collapse
Affiliation(s)
- Asif Ahmad Bhat
- School of Pharmacy, Suresh Gyan Vihar University, Jagatpura, 302017, Mahal Road, Jaipur, India
| | - Muhammad Afzal
- Department of Pharmaceutical Sciences, Pharmacy Program, Batterjee Medical College, P.O. Box 6231, Jeddah, 21442, Saudi Arabia
| | - Ahsas Goyal
- Institute of Pharmaceutical Research, GLA University, Mathura, U.P., India
| | - Gaurav Gupta
- School of Pharmacy, Graphic Era Hill University, Dehradun, 248007, India; Centre of Medical and Bio-allied Health Sciences Research, Ajman University, Ajman, United Arab Emirates.
| | - Riya Thapa
- School of Pharmacy, Suresh Gyan Vihar University, Jagatpura, 302017, Mahal Road, Jaipur, India
| | - Waleed Hassan Almalki
- Department of Pharmacology, College of Pharmacy, Umm Al-Qura University, Makkah, Saudi Arabia
| | - Imran Kazmi
- Department of Biochemistry, Faculty of Science, King Abdulaziz University, 21589, Jeddah, Saudi Arabia
| | - Sami I Alzarea
- Department of Pharmacology, College of Pharmacy, Jouf University, 72341, Sakaka, Aljouf, Saudi Arabia
| | - Moyad Shahwan
- Centre of Medical and Bio-allied Health Sciences Research, Ajman University, Ajman, United Arab Emirates; Department of Clinical Sciences, College of Pharmacy and Health Sciences, Ajman University, Ajman, 346, United Arab Emirates
| | - Keshav Raj Paudel
- Centre for Inflammation, Centenary Institute and University of Technology Sydney, Faculty of Science, School of Life Sciences, Sydney, NSW, 2050, Australia
| | - Haider Ali
- Centre for Global Health Research, Saveetha Medical College, Saveetha Institute of Medical and Technical Sciences, Saveetha University, India; Department of Pharmacology, Kyrgyz State Medical College, Bishkek, Kyrgyzstan
| | - Dipak Sahu
- Department of Pharmacology, Amity University, Raipur, Chhattisgarh, India
| | - Parteek Prasher
- Department of Chemistry, University of Petroleum & Energy Studies, Energy Acres, Dehradun, 248007, India
| | - Sachin Kumar Singh
- School of Pharmaceutical Sciences, Lovely Professional University, Phagwara, Punjab, 144411, India; Faculty of Health, Australian Research Centre in Complementary and Integrative Medicine, University of Technology Sydney, Ultimo, NSW, 2007, Australia; School of Medical and Life Sciences, Sunway University, 47500 Sunway City, Malaysia
| | - Kamal Dua
- Faculty of Health, Australian Research Centre in Complementary and Integrative Medicine, University of Technology Sydney, Ultimo, NSW, 2007, Australia; Discipline of Pharmacy, Graduate School of Health, University of Technology Sydney, NSW, 2007, Australia; Uttaranchal Institute of Pharmaceutical Sciences, Uttaranchal University, Dehradun, India.
| |
Collapse
|
3
|
Chivé C, Martίn-Faivre L, Eon-Bertho A, Alwardini C, Degrouard J, Albinet A, Noyalet G, Chevaillier S, Maisonneuve F, Sallenave JM, Devineau S, Michoud V, Garcia-Verdugo I, Baeza-Squiban A. Exposure to PM 2.5 modulate the pro-inflammatory and interferon responses against influenza virus infection in a human 3D bronchial epithelium model. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 348:123781. [PMID: 38492752 DOI: 10.1016/j.envpol.2024.123781] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2024] [Revised: 02/29/2024] [Accepted: 03/11/2024] [Indexed: 03/18/2024]
Abstract
Epidemiological studies showed a positive association between exposure to PM2.5 and the severity of influenza virus infection. However, the mechanisms by which PM2.5 can disrupt antiviral defence are still unclear. From this perspective, the objective of this study was to evaluate the effects of PM2.5 on antiviral signalling in the respiratory epithelium using the bronchial Calu-3 cell line grown at the air-liquid interface. Pre-exposure to PM2.5 before infection with the influenza virus was investigated, as well as a co-exposure. Although a physical interaction between the virus and the particles seems possible, no effect of PM2.5 on viral replication was observed during co-exposure, although a downregulation of IFN-β release was associated to PM2.5 exposure. However, pre-exposure slightly increased the viral nucleoprotein production and the pro-inflammatory response. Conversely, the level of the myxovirus resistance protein A (MxA), an interferon-stimulated gene (ISG) induced by IFN-β, was reduced. Therefore, these results suggest that pre-exposure to PM2.5 could alter the antiviral response of bronchial epithelial cells, increasing their susceptibility to viral infection.
Collapse
Affiliation(s)
- Chloé Chivé
- Université Paris Cité, Functional and Adaptive Biology Unit, UMR8251-CNRS, Paris, France; French Environment and Energy Management Agency 20, Avenue Du Grésillé - BP, 90406 49004, Angers, France
| | - Lydie Martίn-Faivre
- Université Paris Cité, Inflamex Excellence Laboratory, INSERM UMR-1152-PHERE, F-75018, Paris, France
| | - Alice Eon-Bertho
- Université Paris Cité, Functional and Adaptive Biology Unit, UMR8251-CNRS, Paris, France
| | - Christelle Alwardini
- Université Paris Cité, Functional and Adaptive Biology Unit, UMR8251-CNRS, Paris, France
| | - Jéril Degrouard
- Université Paris-Saclay, CNRS, Laboratoire de Physique des Solides, 91405, Orsay, France
| | - Alexandre Albinet
- Institut National de L'Environnement Industriel et des Risques (INERIS), Parc Technologique Alata BP2, 60550, Verneuil en Halatte, France
| | - Gael Noyalet
- Université Paris Cité and Université Paris Est Créteil, CNRS, LISA, F-75013, Paris, France
| | - Servanne Chevaillier
- Université Paris Cité and Université Paris Est Créteil, CNRS, LISA, F-75013, Paris, France
| | - Franck Maisonneuve
- Université Paris Est Créteil and Université Paris Cité, CNRS, LISA, F-94010, Créteil, France
| | - Jean-Michel Sallenave
- Université Paris Cité, Inflamex Excellence Laboratory, INSERM UMR-1152-PHERE, F-75018, Paris, France
| | - Stéphanie Devineau
- Université Paris Cité, Functional and Adaptive Biology Unit, UMR8251-CNRS, Paris, France
| | - Vincent Michoud
- Université Paris Cité and Université Paris Est Créteil, CNRS, LISA, F-75013, Paris, France
| | - Ignacio Garcia-Verdugo
- Université Paris Cité, Inflamex Excellence Laboratory, INSERM UMR-1152-PHERE, F-75018, Paris, France.
| | - Armelle Baeza-Squiban
- Université Paris Cité, Functional and Adaptive Biology Unit, UMR8251-CNRS, Paris, France
| |
Collapse
|
4
|
Chen H, Ding X, Zhang W, Dong X. Coal mining environment causes adverse effects on workers. Front Public Health 2024; 12:1368557. [PMID: 38741904 PMCID: PMC11090038 DOI: 10.3389/fpubh.2024.1368557] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2024] [Accepted: 04/11/2024] [Indexed: 05/16/2024] Open
Abstract
Background The objective of this study is to study the adverse effects of coal mining environment on workers to discover early effective biomarkers. Methods The molecular epidemiological study was conducted with 502 in-service workers, who were divided into miner and auxiliary. We measured the individual levels of dust exposure for participants. Clinical examinations were conducted by qualified doctors. Peripheral blood was collected to measure biochemistry, hemogram, and karyocyte apoptosis. Results All workers were healthy who have not found with any diseases that can be diagnosed medically in the physical examination and showed no difference in dust exposure level, age, height, weight, and body mass index between groups. The working years of miners were lower than that of auxiliaries (p < 0.001). Compared with auxiliaries, the concentration and percentage of lymphocytes (p = 0.040, p = 0.012), basophils (p = 0.027, p = 0.034), and red blood cells (p < 0.001) and the concentration of hemoglobin of miners were lower (p < 0.001). The percentage of neutrophils (p = 0.003), the concentration of mean corpuscular hemoglobin concentration (p = 0.002), and the proportion of karyocyte apoptosis in miners were higher (p < 0.001). Miners presented higher blood urea nitrogen (p < 0.001), ratio of blood urea nitrogen to creatinine (p < 0.001), the high density lipoprotein cholesterol (p < 0.001), lower creatinine (p < 0.05), and cholesterol (p < 0.001). Conclusion The coal mining environment impacted mining workers' immune function, renal function, and the hematopoietic system, including BUN/CRE, HGB, RBC, and LYMPH, which could be used as early biomarkers to screen the health of coal miners.
Collapse
Affiliation(s)
- Huihui Chen
- Wannan Medical College, Wuhu, Anhui, China
- Guang’anmen Hospital China Academy of Chinese Medical Sciences, Beijing, China
| | - Xinping Ding
- Huaibei Occupational Disease Prevention and Control Institute, Huaibei, Anhui, China
| | | | - Xichen Dong
- Guang’anmen Hospital China Academy of Chinese Medical Sciences, Beijing, China
| |
Collapse
|
5
|
Moonwiriyakit A, Dinsuwannakol S, Sontikun J, Timpratueang K, Muanprasat C, Khemawoot P. Fine particulate matter PM2.5 and its constituent, hexavalent chromium induce acute cytotoxicity in human airway epithelial cells via inflammasome-mediated pyroptosis. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2024; 107:104416. [PMID: 38492761 DOI: 10.1016/j.etap.2024.104416] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/19/2023] [Accepted: 03/14/2024] [Indexed: 03/18/2024]
Abstract
PM2.5-induced airway injury contributes to an increased rate of respiratory morbidity. However, the relationship between PM2.5 toxicants and acute cytotoxic effects remains poorly understood. This study aimed to investigate the mechanisms of PM2.5- and its constituent-induced cytotoxicity in human airway epithelial cells. Exposure to PM2.5 resulted in dose-dependent cytotoxicity within 24 h. Among the PM2.5 constituents examined, Cr(VI) at the dose found in PM2.5 exhibited cytotoxic effects. Both PM2.5 and Cr(VI) cause necrosis while also upregulating the expression of proinflammatory cytokine transcripts. Interestingly, exposure to the conditioned PM, obtained from adsorption in the Cr(VI)-reducing agents, FeSO4 and EDTA, showed a decrease in cytotoxicity. Furthermore, PM2.5 mechanistically enhances programmed pyroptosis through the activation of NLRP3/caspase-1/Gasdermin D pathway and increase of IL-1β. These pyroptosis markers were reduced when exposure to conditioned PM. These findings provide a deeper understanding of mechanisms underlying PM2.5 and Cr(VI) in acute airway toxicity.
Collapse
Affiliation(s)
- Aekkacha Moonwiriyakit
- Chakri Naruebodindra Medical Institute, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Samut Prakan 10540, Thailand.
| | - Sasiwimol Dinsuwannakol
- Chakri Naruebodindra Medical Institute, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Samut Prakan 10540, Thailand
| | - Jenjira Sontikun
- Chakri Naruebodindra Medical Institute, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Samut Prakan 10540, Thailand
| | - Kanokphorn Timpratueang
- Chakri Naruebodindra Medical Institute, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Samut Prakan 10540, Thailand
| | - Chatchai Muanprasat
- Chakri Naruebodindra Medical Institute, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Samut Prakan 10540, Thailand
| | - Phisit Khemawoot
- Chakri Naruebodindra Medical Institute, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Samut Prakan 10540, Thailand
| |
Collapse
|
6
|
Guyatt AL, Cai YS, Doiron D, Tobin MD, Hansell AL. Air pollution, lung function and mortality: survival and mediation analyses in UK Biobank. ERJ Open Res 2024; 10:00093-2024. [PMID: 38686181 PMCID: PMC11057504 DOI: 10.1183/23120541.00093-2024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2024] [Accepted: 02/02/2024] [Indexed: 05/02/2024] Open
Abstract
Background Air pollution is associated with lower lung function, and both are associated with premature mortality and cardiovascular disease (CVD). Evidence remains scarce on the potential mediating effect of impaired lung function on the association between air pollution and mortality or CVD. Methods We used data from UK Biobank (n∼200 000 individuals) with 8-year follow-up to mortality and incident CVD. Exposures to particulate matter <10 µm (PM10), particulate matter <2.5 µm (PM2.5) and nitrogen dioxide (NO2) were assessed by land-use regression modelling. Lung function (forced expiratory volume in 1 s (FEV1), forced vital capacity (FVC) and the FEV1/FVC ratio) was measured between 2006 and 2010 and transformed to Global Lung Function Initiative (GLI) z-scores. Adjusted Cox proportional hazards and causal proportional hazards mediation analysis models were fitted, stratified by smoking status. Results Lower FEV1 and FVC were associated with all-cause and CVD mortality, and incident CVD, with larger estimates in ever- than never-smokers (all-cause mortality hazard ratio per FEV1 GLI z-score decrease 1.29 (95% CI 1.24-1.34) for ever-smokers and 1.16 (95% CI 1.12-1.21) for never-smokers). Long-term exposure to PM2.5 or NO2 was associated with incident CVD, with similar effect sizes for ever- and never-smokers. Mediated proportions of the air pollution-all-cause mortality estimates driven by FEV1 were 18% (95% CI 2-33%) for PM2.5 and 27% (95% CI 3-51%) for NO2. Corresponding mediated proportions for incident CVD were 9% (95% CI 4-13%) for PM2.5 and 16% (95% CI 6-25%) for NO2. Conclusions Lung function may mediate a modest proportion of associations between air pollution and mortality and CVD outcomes. Results likely reflect the extent of either shared mechanisms or direct effects relating to lower lung function caused by air pollution.
Collapse
Affiliation(s)
- Anna L. Guyatt
- Department of Population Health Sciences, University of Leicester, Leicester, UK
- These authors are joint first authors
| | - Yutong Samuel Cai
- Department of Population Health Sciences, University of Leicester, Leicester, UK
- Centre for Environmental Health and Sustainability, University of Leicester, Leicester, UK
- National Institute for Health and Care Research Health Protection Research Unit in Environmental Exposures and Health, University of Leicester, Leicester, UK
- National Institute for Health and Care Research Leicester Biomedical Research Centre, University Hospitals of Leicester NHS Trust, Research & Innovation, Leicester General Hospital, Leicester, UK
- These authors are joint first authors
| | - Dany Doiron
- Respiratory Epidemiology and Clinical Research Unit, Research Institute of the McGill University, Montréal, QC, Canada
| | - Martin D. Tobin
- Department of Population Health Sciences, University of Leicester, Leicester, UK
- National Institute for Health and Care Research Leicester Biomedical Research Centre, University Hospitals of Leicester NHS Trust, Research & Innovation, Leicester General Hospital, Leicester, UK
| | - Anna L. Hansell
- Department of Population Health Sciences, University of Leicester, Leicester, UK
- Centre for Environmental Health and Sustainability, University of Leicester, Leicester, UK
- National Institute for Health and Care Research Health Protection Research Unit in Environmental Exposures and Health, University of Leicester, Leicester, UK
- National Institute for Health and Care Research Leicester Biomedical Research Centre, University Hospitals of Leicester NHS Trust, Research & Innovation, Leicester General Hospital, Leicester, UK
| |
Collapse
|
7
|
Wang T, Duan W, Jia X, Huang X, Liu Y, Meng F, Ni C. Associations of combined phenotypic ageing and genetic risk with incidence of chronic respiratory diseases in the UK Biobank: a prospective cohort study. Eur Respir J 2024; 63:2301720. [PMID: 38061785 PMCID: PMC10882326 DOI: 10.1183/13993003.01720-2023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Accepted: 11/29/2023] [Indexed: 02/24/2024]
Abstract
BACKGROUND Accelerated biological ageing has been associated with an increased risk of several chronic respiratory diseases. However, the associations between phenotypic age, a new biological age indicator based on clinical chemistry biomarkers, and common chronic respiratory diseases have not been evaluated. METHODS We analysed data from 308 592 participants at baseline in the UK Biobank. The phenotypic age was calculated from chronological age and nine clinical chemistry biomarkers, including albumin, alkaline phosphatase, creatinine, glucose, C-reactive protein, lymphocyte percent, mean cell volume, red cell distribution width and white blood cell count. Furthermore, phenotypic age acceleration (PhenoAgeAccel) was calculated by regressing phenotypic age on chronological age. The associations of PhenoAgeAccel with incident common chronic respiratory diseases and cross-sectional lung function were investigated. Moreover, we constructed polygenic risk scores and evaluated whether PhenoAgeAccel modified the effect of genetic susceptibility on chronic respiratory diseases and lung function. RESULTS The results showed significant associations of PhenoAgeAccel with increased risk of idiopathic pulmonary fibrosis (IPF) (hazard ratio (HR) 1.52, 95% CI 1.45-1.59), COPD (HR 1.54, 95% CI 1.51-1.57) and asthma (HR 1.18, 95% CI 1.15-1.20) per 5-year increase and decreased lung function. There was an additive interaction between PhenoAgeAccel and the genetic risk for IPF and COPD. Participants with high genetic risk and who were biologically older had the highest risk of incident IPF (HR 5.24, 95% CI 3.91-7.02), COPD (HR 2.99, 95% CI 2.66-3.36) and asthma (HR 2.07, 95% CI 1.86-2.31). Mediation analysis indicated that PhenoAgeAccel could mediate 10∼20% of the associations between smoking and chronic respiratory diseases, while ∼10% of the associations between particulate matter with aerodynamic diameter <2.5 µm and the disorders were mediated by PhenoAgeAccel. CONCLUSION PhenoAgeAccel was significantly associated with incident risk of common chronic respiratory diseases and decreased lung function and could serve as a novel clinical biomarker.
Collapse
Affiliation(s)
- Ting Wang
- Department of Pathology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, China
- Department of Occupational Medical and Environmental Health, Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing, China
- Department of Public Health, Kangda College of Nanjing Medical University, Lianyungang, China
| | - Weiwei Duan
- Department of Bioinformatics, School of Biomedical Engineering and Informatics, Nanjing Medical University, Nanjing, China
- Joint first authors
- Joint first authors
| | - Xinying Jia
- Department of Occupational Medical and Environmental Health, Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Xinmei Huang
- Department of Respiratory Medicine, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, China
| | - Yi Liu
- Department of Occupational Medical and Environmental Health, Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing, China
- Contributed equally to this article as lead authors and supervised the work
| | - Fanqing Meng
- Department of Pathology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, China
- Contributed equally to this article as lead authors and supervised the work
| | - Chunhui Ni
- Department of Occupational Medical and Environmental Health, Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing, China
- Department of Public Health, Kangda College of Nanjing Medical University, Lianyungang, China
- Contributed equally to this article as lead authors and supervised the work
| |
Collapse
|
8
|
Lovins HB, Bathon BE, Shaikh SR, Gowdy KM. Inhaled toxicants and pulmonary lipid metabolism: biological consequences and therapeutic interventions. Toxicol Sci 2023; 196:141-151. [PMID: 37740395 DOI: 10.1093/toxsci/kfad100] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/24/2023] Open
Abstract
Inhaled toxicants drive the onset of and exacerbate preexisting chronic pulmonary diseases, however, the biological mechanisms by which this occurs are largely unknown. Exposure to inhaled toxicants, both environmental and occupational, drives pulmonary inflammation and injury. Upon activation of the inflammatory response, polyunsaturated fatty acids (PUFAs) are metabolized into predominately proinflammatory lipid mediators termed eicosanoids which recruit immune cells to the site of injury, perpetuating inflammation to clear the exposed toxicants. Following inflammation, lipid mediator class-switching occurs, a process that leads to increased metabolism of hydroxylated derivates of PUFAs. These mediators, which include mono-hydroxylated PUFA derivatives and specialized proresolving lipid mediators, initiate an active process of inflammation resolution by inhibiting the inflammatory response and activating resolution pathways to return the tissue to homeostasis. Exposure to inhaled toxicants leads to alterations in the synthesis of these proinflammatory and proresolving lipid mediator pathways, resulting in greater pulmonary inflammation and injury, and increasing the risk for the onset of chronic lung diseases. Recent studies have begun utilizing supplementation of PUFAs and their metabolites as potential therapeutics for toxicant-induced pulmonary inflammation and injury. Here we will review the current understanding of the lipid mediators in pulmonary inflammation and resolution as well as the impact of dietary fatty acid supplementation on lipid mediator-driven inflammation following air pollution exposure.
Collapse
Affiliation(s)
- Hannah B Lovins
- Division of Pulmonary, Critical Care and Sleep Medicine, The Ohio State University, Columbus, Ohio, USA
| | - Brooke E Bathon
- Department of Nutrition, Gillings School of Global Public Health and School of Medicine, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | - Saame Raza Shaikh
- Department of Nutrition, Gillings School of Global Public Health and School of Medicine, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | - Kymberly M Gowdy
- Division of Pulmonary, Critical Care and Sleep Medicine, The Ohio State University, Columbus, Ohio, USA
| |
Collapse
|
9
|
Lichter KE, Charbonneau K, Sabbagh A, Witztum A, Chuter R, Anand C, Thiel CL, Mohamad O. Evaluating the Environmental Impact of Radiation Therapy Using Life Cycle Assessments: A Critical Review. Int J Radiat Oncol Biol Phys 2023; 117:554-567. [PMID: 37172916 DOI: 10.1016/j.ijrobp.2023.04.036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Revised: 03/17/2023] [Accepted: 04/26/2023] [Indexed: 05/15/2023]
Abstract
Concurrent increases in global cancer burden and the climate crisis pose an unprecedented threat to public health and human well-being. Today, the health care sector greatly contributes to greenhouse gas emissions, with the future demand for health care services expected to rise. Life cycle assessment (LCA) is an internationally standardized tool that analyzes the inputs and outputs of products, processes, and systems to quantify associated environmental impacts. This critical review explains the use of LCA methodology and outlines its application to external beam radiation therapy (EBRT) with the aim of providing a robust methodology to quantify the environmental impact of radiation therapy care practices today. The steps of an LCA are outlined and explained as defined by the International Organization for Standardization (ISO 14040 and 14044) guidelines: (1) definition of the goal and scope of the LCA, (2) inventory analysis, (3) impact assessment, and (4) interpretation. The existing LCA framework and its methodology is described and applied to the field of radiation oncology. The goal and scope of its application to EBRT is the evaluation of the environmental impact of a single EBRT treatment course within a radiation oncology department. The methodology for data collection via mapping of the resources used (inputs) and the end-of-life processes (outputs) associated with EBRT is explained, with subsequent explanation of the LCA analysis steps. Finally, the importance of appropriate sensitivity analysis and the interpretations that can be drawn from LCA results are reviewed. This critical review of LCA protocol provides and evaluates a methodological framework to scientifically establish baseline environmental performance measurements within a health care setting and assists in identifying targets for emissions mitigation. Future LCAs in the field of radiation oncology and across medical specialties will be crucial in informing best practices for equitable and sustainable care in a changing climate.
Collapse
Affiliation(s)
- Katie E Lichter
- Department of Radiation Oncology, University of California, San Francisco, California.
| | - Kiley Charbonneau
- Loyola University Chicago-Stritch School of Medicine, Chicago, Illinois
| | - Ali Sabbagh
- Department of Radiation Oncology, University of California, San Francisco, California
| | - Alon Witztum
- Department of Radiation Oncology, University of California, San Francisco, California
| | - Rob Chuter
- Christie Medical Physics and Engineering, Christie NHS Foundation Trust, Manchester, United Kingdom
| | | | - Cassandra L Thiel
- Department of Population Health, NYU Grossman School of Medicine, NYU Langone Health, New York, New York
| | - Osama Mohamad
- Department of Radiation Oncology, University of California, San Francisco, California
| |
Collapse
|
10
|
Scieszka D, Bolt AM, McCormick MA, Brigman JL, Campen MJ. Aging, longevity, and the role of environmental stressors: a focus on wildfire smoke and air quality. FRONTIERS IN TOXICOLOGY 2023; 5:1267667. [PMID: 37900096 PMCID: PMC10600394 DOI: 10.3389/ftox.2023.1267667] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Accepted: 09/25/2023] [Indexed: 10/31/2023] Open
Abstract
Aging is a complex biological process involving multiple interacting mechanisms and is being increasingly linked to environmental exposures such as wildfire smoke. In this review, we detail the hallmarks of aging, emphasizing the role of telomere attrition, cellular senescence, epigenetic alterations, proteostasis, genomic instability, and mitochondrial dysfunction, while also exploring integrative hallmarks - altered intercellular communication and stem cell exhaustion. Within each hallmark of aging, our review explores how environmental disasters like wildfires, and their resultant inhaled toxicants, interact with these aging mechanisms. The intersection between aging and environmental exposures, especially high-concentration insults from wildfires, remains under-studied. Preliminary evidence, from our group and others, suggests that inhaled wildfire smoke can accelerate markers of neurological aging and reduce learning capabilities. This is likely mediated by the augmentation of circulatory factors that compromise vascular and blood-brain barrier integrity, induce chronic neuroinflammation, and promote age-associated proteinopathy-related outcomes. Moreover, wildfire smoke may induce a reduced metabolic, senescent cellular phenotype. Future interventions could potentially leverage combined anti-inflammatory and NAD + boosting compounds to counter these effects. This review underscores the critical need to study the intricate interplay between environmental factors and the biological mechanisms of aging to pave the way for effective interventions.
Collapse
Affiliation(s)
- David Scieszka
- Department of Pharmaceutical Sciences, College of Pharmacy, University of New Mexico Health Sciences Center, Albuquerque, NM, United States
| | - Alicia M. Bolt
- Department of Pharmaceutical Sciences, College of Pharmacy, University of New Mexico Health Sciences Center, Albuquerque, NM, United States
| | - Mark A. McCormick
- Department of Biochemistry and Molecular Biology, School of Medicine, University of New Mexico Health Sciences Center, Albuquerque, NM, United States
| | - Jonathan L. Brigman
- Department of Neurosciences, School of Medicine, University of New Mexico Health Sciences Center, Albuquerque, NM, United States
| | - Matthew J. Campen
- Department of Pharmaceutical Sciences, College of Pharmacy, University of New Mexico Health Sciences Center, Albuquerque, NM, United States
| |
Collapse
|
11
|
Sun C, Bai S, Liang Y, Liu D, Liao J, Chen Y, Zhao X, Wu B, Huang D, Chen M, Wu D. The role of Sirtuin 1 and its activators in age-related lung disease. Biomed Pharmacother 2023; 162:114573. [PMID: 37018986 DOI: 10.1016/j.biopha.2023.114573] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Revised: 03/10/2023] [Accepted: 03/21/2023] [Indexed: 04/05/2023] Open
Abstract
Aging is a major driving factor in lung diseases. Age-related lung disease is associated with downregulated expression of SIRT1, an NAD+-dependent deacetylase that regulates inflammation and stress resistance. SIRT1 acts by inducing the deacetylation of various substrates and regulates several mechanisms that relate to lung aging, such as genomic instability, lung stem cell exhaustion, mitochondrial dysfunction, telomere shortening, and immune senescence. Chinese herbal medicines have many biological activities, exerting anti-inflammatory, anti-oxidation, anti-tumor, and immune regulatory effects. Recent studies have confirmed that many Chinese herbs have the effect of activating SIRT1. Therefore, we reviewed the mechanism of SIRT1 in age-related lung disease and explored the potential roles of Chinese herbs as SIRT1 activators in the treatment of age-related lung disease.
Collapse
|
12
|
Ligresti G, Raslan AA, Hong J, Caporarello N, Confalonieri M, Huang SK. Mesenchymal cells in the Lung: Evolving concepts and their role in fibrosis. Gene 2023; 859:147142. [PMID: 36603696 PMCID: PMC10068350 DOI: 10.1016/j.gene.2022.147142] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2022] [Revised: 12/18/2022] [Accepted: 12/21/2022] [Indexed: 01/03/2023]
Abstract
Mesenchymal cells in the lung are crucial during development, but also contribute to the pathogenesis of fibrotic disorders, including idiopathic pulmonary fibrosis (IPF), the most common and deadly form of fibrotic interstitial lung diseases. Originally thought to behave as supporting cells for the lung epithelium and endothelium with a singular function of producing basement membrane, mesenchymal cells encompass a variety of cell types, including resident fibroblasts, lipofibroblasts, myofibroblasts, smooth muscle cells, and pericytes, which all occupy different anatomic locations and exhibit diverse homeostatic functions in the lung. During injury, each of these subtypes demonstrate remarkable plasticity and undergo varying capacity to proliferate and differentiate into activated myofibroblasts. Therefore, these cells secrete high levels of extracellular matrix (ECM) proteins and inflammatory cytokines, which contribute to tissue repair, or in pathologic situations, scarring and fibrosis. Whereas epithelial damage is considered the initial trigger that leads to lung injury, lung mesenchymal cells are recognized as the ultimate effector of fibrosis and attempts to better understand the different functions and actions of each mesenchymal cell subtype will lead to a better understanding of why fibrosis develops and how to better target it for future therapy. This review summarizes current findings related to various lung mesenchymal cells as well as signaling pathways, and their contribution to the pathogenesis of pulmonary fibrosis.
Collapse
Affiliation(s)
- Giovanni Ligresti
- Department of Medicine, Boston University Chobanian & Avedisian School of Medicine, Boston MA, US.
| | - Ahmed A Raslan
- Department of Medicine, Boston University Chobanian & Avedisian School of Medicine, Boston MA, US
| | - Jeongmin Hong
- Department of Medicine, Boston University Chobanian & Avedisian School of Medicine, Boston MA, US
| | - Nunzia Caporarello
- Department of Physiology & Biomedical Engineering, Mayo Clinic, Rochester, MN, US
| | - Marco Confalonieri
- Department of Medicine, Surgery and Health Sciences, University of Trieste, Trieste, Italy
| | - Steven K Huang
- Department of Internal Medicine, University of Michigan Medical School, Ann Arbor, MI, US
| |
Collapse
|
13
|
Zhang Y, Wang L, Liu Y, Yan F. Mettl3-mediated transcriptome-wide m6A methylation induced by cigarette smoking in human bronchial epithelial cells. Toxicol In Vitro 2023; 89:105584. [PMID: 36924977 DOI: 10.1016/j.tiv.2023.105584] [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: 11/23/2022] [Revised: 02/17/2023] [Accepted: 03/13/2023] [Indexed: 03/16/2023]
Abstract
Cigarette smoke exposure is a well-recognized causative factor for Chronic obstructive pulmonary disease (COPD), but the molecular mechanisms responsible for this effect need to be further investigated. An expanding number of studies suggest that m6A modification is involved in the progression of various diseases. Nevertheless, evidence on the regulatory function of m6A modification in human bronchial epithelial cells exposed to cigarette smoke is scarce. In this study, we investigated for the first time the effect of cigarette smoke exposure on contributing to high Mettl3 expression in HBE cells in vitro, an essential m6A writer. To investigate the pattern of m6A modification in HBE cells following cigarette smoke exposure, Mettl3 was down-regulated in HBE cells and a MeRIP-seq analysis revealed differences in m6A methylation between wild-type (WT) and Mettl3 knockdown HBE cells exposed to CSE. There were 1584 significantly hypomethylated genes engaged in multicellular organismal developments. We identified 200 differentially expressed genes with hypomethylated m6A peaks in conjunction with Mettl3 knockdown, among four candidate genes (NR1H4, TSPEAR, ACSBG1, and SLC5A5) that could be further explored in COPD. According to the research, cigarette smoke may control the behavior of human bronchial epithelial cells through m6A modification in COPD, providing a unique molecular mechanism.
Collapse
Affiliation(s)
- Yaping Zhang
- Clinical Center for Molecular Diagnosis and Therapy, The Second Affiliated Hospital of Fujian Medical University, 34 North Zhongshan Road, Licheng District, Quanzhou, China.
| | - Lixing Wang
- Clinical Center for Molecular Diagnosis and Therapy, The Second Affiliated Hospital of Fujian Medical University, 34 North Zhongshan Road, Licheng District, Quanzhou, China
| | - Yifei Liu
- Clinical Center for Molecular Diagnosis and Therapy, The Second Affiliated Hospital of Fujian Medical University, 34 North Zhongshan Road, Licheng District, Quanzhou, China
| | - Furong Yan
- Clinical Center for Molecular Diagnosis and Therapy, The Second Affiliated Hospital of Fujian Medical University, 34 North Zhongshan Road, Licheng District, Quanzhou, China
| |
Collapse
|
14
|
Zhang S, Lu X, Fang X, Wang Z, Cheng S, Song J. Cigarette smoke extract combined with LPS reduces ABCA3 expression in chronic pulmonary inflammation may be related to PPARγ/ P38 MAPK signaling pathway. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2022; 244:114086. [PMID: 36115154 DOI: 10.1016/j.ecoenv.2022.114086] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Revised: 09/08/2022] [Accepted: 09/13/2022] [Indexed: 06/15/2023]
Abstract
ABCA3 (ATP-binding cassette class A3) is a transmembrane transporter that plays a positive role in chronic pulmonary inflammation by regulating lipid metabolism. However, it is not completely clear whether ABCA3 and its signaling factors are involved in chronic pulmonary inflammation induced by the combination of CSE (cigarette smoke extract) and LPS (lipopolysaccharide). In this study, we used the method of combining CSE and LPS which was widely used to study lung inflammation-related diseases and has been proven effective in our group's studies to create in vivo and in vitro pulmonary inflammation models. The result showed that, after CSE in combination with LPS treatment, ABCA3 expression was downregulated in rat lung in vivo and in a human alveolar cell line in vitro. ABCA3 expression was upregulated, and related inflammatory factors were downregulated in the state of overexpression of PPARγ or inhibition of the p38 MAPK pathway, while PPARγ deletion or MAPK14 overexpression showed the opposite results. The level of PPARγ remained unchanged, and the expression of ABCA3 was upregulated in the state of the p38 MAPK pathway was inhibited under overexpression of PPARγ. These results indicate that CSE combined with LPS can result in downregulation of ABCA3 under conditions of inflammation, and that the p38 MAPK signaling pathway mediated by PPARγ can regulate the expression changes of ABCA3, thus providing new targets for treating chronic pulmonary inflammation.
Collapse
Affiliation(s)
- Shuyi Zhang
- Institute for Anhui Province Key Laboratory of Major Autoimmune Diseases, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, 81 Meishan Road, Hefei 230032, China; Institute for the Key Laboratory of Anti-inflammatory and Immune Medicines, Ministry of Education, 230032, Hefei, China
| | - Xianwang Lu
- Institute for Anhui Province Key Laboratory of Major Autoimmune Diseases, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, 81 Meishan Road, Hefei 230032, China; Institute for the Key Laboratory of Anti-inflammatory and Immune Medicines, Ministry of Education, 230032, Hefei, China
| | - Xin Fang
- Institute for Anhui Province Key Laboratory of Major Autoimmune Diseases, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, 81 Meishan Road, Hefei 230032, China; Institute for the Key Laboratory of Anti-inflammatory and Immune Medicines, Ministry of Education, 230032, Hefei, China
| | - Zihao Wang
- Institute for Anhui Province Key Laboratory of Major Autoimmune Diseases, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, 81 Meishan Road, Hefei 230032, China; Institute for the Key Laboratory of Anti-inflammatory and Immune Medicines, Ministry of Education, 230032, Hefei, China
| | - Shihao Cheng
- Institute for Anhui Province Key Laboratory of Major Autoimmune Diseases, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, 81 Meishan Road, Hefei 230032, China; Institute for the Key Laboratory of Anti-inflammatory and Immune Medicines, Ministry of Education, 230032, Hefei, China
| | - Jue Song
- Institute for Anhui Province Key Laboratory of Major Autoimmune Diseases, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, 81 Meishan Road, Hefei 230032, China; Institute for the Key Laboratory of Anti-inflammatory and Immune Medicines, Ministry of Education, 230032, Hefei, China.
| |
Collapse
|
15
|
Abstract
The mammalian respiratory system or lung is a tree-like branching structure, and the main site of gas exchange with the external environment. Structurally, the lung is broadly classified into the proximal (or conducting) airways and the distal alveolar region, where the gas exchange occurs. In parallel with the respiratory tree, the pulmonary vasculature starts with large pulmonary arteries that subdivide rapidly ending in capillaries adjacent to alveolar structures to enable gas exchange. The NOTCH signalling pathway plays an important role in lung development, differentiation and regeneration post-injury. Signalling via the NOTCH pathway is mediated through activation of four NOTCH receptors (NOTCH1-4), with each receptor capable of regulating unique biological processes. Dysregulation of the NOTCH pathway has been associated with development and pathophysiology of multiple adult acute and chronic lung diseases. This includes accumulating evidence that alteration of NOTCH3 signalling plays an important role in the development and pathogenesis of chronic obstructive pulmonary disease, lung cancer, asthma, idiopathic pulmonary fibrosis and pulmonary arterial hypertension. Herein, we provide a comprehensive summary of the role of NOTCH3 signalling in regulating repair/regeneration of the adult lung, its association with development of lung disease and potential therapeutic strategies to target its signalling activity.
Collapse
|
16
|
Eckhardt CM, Wu H, Prada D, Vokonas PS, Sparrow D, Hou L, Schwartz J, Baccarelli AA. Predicting risk of lung function impairment and all-cause mortality using a DNA methylation-based classifier of tobacco smoke exposure. Respir Med 2022; 200:106896. [PMID: 35716602 PMCID: PMC10560590 DOI: 10.1016/j.rmed.2022.106896] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Revised: 05/09/2022] [Accepted: 05/30/2022] [Indexed: 11/28/2022]
Abstract
BACKGROUND The Epigenetic Smoking Status Estimator (EpiSmokEr) predicts smoking phenotypes based on DNA methylation at 121 CpG sites. OBJECTIVE Evaluate associations of EpiSmokEr-predicted versus self-reported smoking phenotypes with lung function and all-cause mortality in a cohort of older adults. METHODS The prospective Normative Aging Study collected DNA methylation measurements from 1999 to 2012 with follow-up through 2016. The R package EpiSmokEr derived predicted smoking phenotypes based on DNA methylation levels assayed by the Illumina HumanMethylation450 Beadchip. Spirometry was collected every 3-5 years. Airflow limitation was defined as forced expiratory volume in 1 s/forced vital capacity <0.7. Vital status was monitored through periodic mailings. RESULTS Among 784 participants contributing 5414 person-years of follow-up, the EpiSmokEr-predicted smoking phenotypes matched the self-reported phenotypes for 228 (97%) never smokers and 22 (71%) current smokers. In contrast, EpiSmokEr classified 407 (79%) self-reported former smokers as never smokers. Nonetheless, the EpiSmokEr-predicted former smoking phenotype was more strongly associated with incident airflow limitation (hazard ratio [HR] = 3.15, 95% confidence interval [CI] = 1.50-6.59) and mortality (HR = 2.11, 95% CI = 1.56-2.85) compared to the self-reported former smoking phenotype (airflow limitation: HR = 2.21, 95% CI = 1.13-4.33; mortality: HR = 1.08, 95% CI = 0.86-1.36). Risk of airflow limitation and death did not differ among self-reported never smokers and former smokers who were classified as never smokers. The discriminative accuracy of EpiSmokEr-predicted phenotypes for incident airflow limitation and mortality was improved compared to self-reported phenotypes. CONCLUSIONS The DNA methylation-based EpiSmokEr classifier may be a useful surrogate of smoking-induced lung damage and may identify former smokers most at risk of adverse smoking-related health effects.
Collapse
Affiliation(s)
- Christina M Eckhardt
- Columbia University Irving Medical Center, Division of Pulmonary, Allergy and Critical, Care Medicine, Department of Medicine, New York, NY, USA.
| | - Haotian Wu
- Columbia University Mailman School of Public Health, Environmental Health Sciences, Department, New York, NY, USA
| | - Diddier Prada
- Columbia University Mailman School of Public Health, Environmental Health Sciences, Department, New York, NY, USA; Instituto Nacional de Cancerología, México City, Mexico
| | - Pantel S Vokonas
- Boston University School of Medicine, VA Normative Aging Study, VA, Boston, USA; Healthcare System and Department of Medicine, Boston, MA, USA
| | - David Sparrow
- Boston University School of Medicine, VA Normative Aging Study, VA, Boston, USA; Healthcare System and Department of Medicine, Boston, MA, USA
| | - Lifang Hou
- Northwestern Feinberg School of Medicine, Department of Preventive Medicine, Chicago, IL, USA
| | - Joel Schwartz
- Harvard T.H. Chan School of Public Health, Department of Epidemiology, Cambridge, MA, USA
| | - Andrea A Baccarelli
- Columbia University Mailman School of Public Health, Environmental Health Sciences, Department, New York, NY, USA
| |
Collapse
|
17
|
Klepaker G, Henneberger PK, Torén K, Brunborg C, Kongerud J, Fell AKM. Association of respiratory symptoms with body mass index and occupational exposure comparing sexes and subjects with and without asthma: follow-up of a Norwegian population study (the Telemark study). BMJ Open Respir Res 2022; 9:9/1/e001186. [PMID: 35365552 PMCID: PMC8977753 DOI: 10.1136/bmjresp-2021-001186] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Accepted: 03/22/2022] [Indexed: 11/03/2022] Open
Abstract
BACKGROUND Occupational exposure and increased body mass index (BMI) are associated with respiratory symptoms. This study investigated whether the association of a respiratory burden score with changes in BMI as well as changes in occupational exposure to vapours, gas, dust and fumes (VGDF) varied in subjects with and without asthma and in both sexes over a 5-year period. METHODS In a 5-year follow-up of a population-based study, 6350 subjects completed a postal questionnaire in 2013 and 2018. A respiratory burden score based on self-reported respiratory symptoms, BMI and frequency of occupational exposure to VGDF were calculated at both times. The association between change in respiratory burden score and change in BMI or VGDF exposure was assessed using stratified regression models. RESULTS Changes in respiratory burden score and BMI were associated with a β-coefficient of 0.05 (95% CI 0.04 to 0.07). This association did not vary significantly by sex, with 0.05 (0.03 to 0.07) for women and 0.06 (0.04 to 0.09) for men. The association was stronger among those with asthma (0.12; 0.06 to 0.18) compared with those without asthma (0.05; 0.03 to 0.06) (p=0.011). The association of change in respiratory burden score with change in VGDF exposure gave a β-coefficient of 0.15 (0.05 to 0.19). This association was somewhat greater for men versus women, with coefficients of 0.18 (0.12 to 0.24) and 0.13 (0.07 to 0.19), respectively (p=0.064). The estimate was similar among subjects with asthma (0.18; -0.02 to 0.38) and those without asthma (0.15; 0.11 to 0.19). CONCLUSIONS Increased BMI and exposure to VGDF were associated with increased respiratory burden scores. The change due to increased BMI was not affected by sex, but subjects with asthma had a significantly larger change than those without. Increased frequency of VGDF exposure was associated with increased respiratory burden score but without statistically significant differences with respect to sex or asthma status.
Collapse
Affiliation(s)
- Geir Klepaker
- Department of Occupational and Environmental Medicine, Telemark Hospital, Skien, Norway .,Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, Oslo, Norway
| | - Paul Keefer Henneberger
- Respiratory Health Division, National Institute for Occupational Safety and Health, Centers for Disease Control and Prevention, Morgantown, West Virginia, USA
| | - Kjell Torén
- Department of Occupational and Environmental Medicine, University of Gothenburg, Gothenburg, Sweden
| | - Cathrine Brunborg
- Oslo Centre for Biostatistics, Epidemiology and Health Economics, Oslo University Hospital, Oslo, Norway
| | - Johny Kongerud
- Department of Respiratory Medicine, University of Oslo, Oslo, Norway.,Department of Respiratory Medicine, Oslo University Hospital, Oslo, Norway
| | - Anne Kristin Møller Fell
- Department of Occupational and Environmental Medicine, Telemark Hospital, Skien, Norway.,Institute of Health and Society, Department of Community Medicine and Global Health, University of Oslo Faculty of Medicine, Oslo, Norway
| |
Collapse
|