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Su WC, Juan HL, Lee JI, Huang SP, Chen SC, Geng JH. Secondhand smoke increases the risk of developing chronic obstructive pulmonary disease. Sci Rep 2024; 14:7481. [PMID: 38553570 PMCID: PMC10980762 DOI: 10.1038/s41598-024-58038-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2024] [Accepted: 03/25/2024] [Indexed: 04/02/2024] Open
Abstract
Smoking is the most important risk factor for chronic obstructive pulmonary disease (COPD), however evidence from large-scale studies on whether secondhand smoke (SHS) increases the risk of COPD is still lacking. We conducted this large longitudinal study to investigate the association between SHS and the development of COPD. This is a longitudinal study. Data on 6519 subjects who were never-smokers, had no history of COPD, and had complete lung function records were extracted from the Taiwan Biobank. They were divided into two groups according to SHS exposure: no exposure and exposure groups. Data were collected when participants enrolled in the study and during regular follow-up. Cox proportional hazards regression models were used to estimate the relative risk (RR) and 95% confidence interval (CI) for the association between SHS and the risk of developing COPD. At 48 months of follow-up, 260 (4%) participants in the no exposure group and 34 (7%) participants in the exposure group developed COPD. The RR of incident COPD development was significantly higher in the exposure group than that in the no exposure group after adjusting for confounders (RR = 1.49; 95% CI 1.04 to 2.14; P value = 0.031). There is a dose-response relationship between the duration of exposure to SHS and the risk of incident COPD, which demonstrates that an additional hour of exposure to SHS per week was associated with a 1.03-fold increased likelihood of developing COPD after adjusting for confounders (RR = 1.03; 95% CI 1.00 to 1.05; P value = 0.027). SHS exposure contributes to the development of COPD. This finding can help raise awareness of the harms of SHS and provide a reference for formulating anti-smoking policies.
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Affiliation(s)
- Wen-Chi Su
- Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Huai-Lei Juan
- Department of Internal Medicine, Kaohsiung Municipal Siaogang Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Jia-In Lee
- Department of Psychiatry, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Shu-Pin Huang
- Graduate Institute of Clinical Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
- Department of Urology, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
- Ph.D. Program in Environmental and Occupational Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
- Institute of Medical Science and Technology, College of Medicine, National Sun Yat-Sen University, Kaohsiung, Taiwan
| | - Szu-Chia Chen
- Department of Internal Medicine, Kaohsiung Municipal Siaogang Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
- Division of Nephrology, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
- Faculty of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
- Research Center for Environmental Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Jiun-Hung Geng
- Graduate Institute of Clinical Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan.
- Department of Urology, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan.
- Faculty of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan.
- Research Center for Environmental Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan.
- Department of Urology, Kaohsiung Municipal Siaogang Hospital, No. 482, Shanming Rd, Xiaogang District, Kaohsiung City, 812, Taiwan.
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Wang Q, Goracci C, Sundar IK, Rahman I. Environmental tobacco smoke exposure exaggerates bleomycin-induced collagen overexpression during pulmonary fibrogenesis. J Inflamm (Lond) 2024; 21:9. [PMID: 38509574 PMCID: PMC10956237 DOI: 10.1186/s12950-024-00377-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2023] [Accepted: 02/12/2024] [Indexed: 03/22/2024] Open
Abstract
Environmental tobacco smoke (ETS) is known to cause lung inflammatory and injurious responses. Smoke exposure is associated with the pathobiology related to lung fibrosis, whereas the mechanism that ETS exposure augments pulmonary fibrogenesis is unclear. We hypothesized that ETS exposure could exacerbate fibrotic responses via collagen dynamic dysregulation and complement activation. C57BL/6J and p16-3MR mice were exposed to ETS followed by bleomycin administration. ETS exposure exacerbated bleomycin-induced collagen and lysyl oxidase overexpression in the fibrotic lesion. ETS exposure also led to augmented bleomycin-induced upregulation of C3 and C3AR, which are pro-fibrotic markers. Moreover, overexpressed collagens and C3 levels were highly significant in males than females. The old mice (17 months old) were exposed to ETS and treated with bleomycin to induce fibrogenesis which is considered as an aging-associated disease. Fewer gene and protein dysregulations trends were identified between ETS exposure with the bleomycin group and the bleomycin alone group in old mice. Based on our findings, we suggested that ETS exposure increases the risk of developing severe lung fibrotic responses via collagen overexpression and lysyl oxidase-mediated collagen stabilization in the fibrotic lesion, and potentially affected the complement system activation induced by bleomycin. Further, male mice were more susceptible than females during fibrogenesis exacerbation. Thus ETS and bleomycin induced lung fibrotic changes via collagen-lysyl oxidase in an age-dependent mechanism.
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Affiliation(s)
- Qixin Wang
- Department of Environmental Medicine, University of Rochester Medical Center, 601 Elmwood Avenue, Box 850, Rochester, NY, 14642, USA
| | - Chiara Goracci
- Department of Environmental Medicine, University of Rochester Medical Center, 601 Elmwood Avenue, Box 850, Rochester, NY, 14642, USA
| | - Isaac Kirubakaran Sundar
- Department of Internal Medicine, Division of Pulmonary, Critical Care and Sleep Medicine, University of Kansas Medical Center, Kansas City, KS, USA
| | - Irfan Rahman
- Department of Environmental Medicine, University of Rochester Medical Center, 601 Elmwood Avenue, Box 850, Rochester, NY, 14642, USA.
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Peng L, Luo X, Cao B, Wang X. Unraveling the link: environmental tobacco smoke exposure and its impact on infertility among American women (18-50 years). Front Public Health 2024; 12:1358290. [PMID: 38525328 PMCID: PMC10957781 DOI: 10.3389/fpubh.2024.1358290] [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: 12/19/2023] [Accepted: 02/23/2024] [Indexed: 03/26/2024] Open
Abstract
Purpose The detrimental effects of environmental tobacco smoke (ETS) on women's reproductive health have been widely recognized. However, the detailed association between exposure to environmental tobacco smoke and the incidence of infertility remains under-explored. This investigation focuses on exploring this potential connection. Methods For this analysis, we extracted data from the US National Health and Nutrition Examination Survey (NHANES) database, covering the years 2013 to 2018, focusing on individuals with recorded serum cotinine levels and infertility information. ETS exposure and fertility status were analyzed as independent and dependent variables, respectively. We applied weighted multivariate logistic regression method to evaluate the impact of ETS on infertility, including subgroup analyses for more detailed insights. Results The study encompassed 3,343 participants. Logistic regression analysis revealed a notable positive correlation between ETS exposure and infertility, with an odds ratio (OR) of 1.64 (95% Confidence Interval [CI]: 1.14-2.36). We observed a non-linear relationship between ETS exposure and infertility risk. Notably, infertility risk increased by 64% in serum cotinine levels above 0.136 compared to that in serum cotinine levels below 0.011. Further, subgroup analysis and interaction tests showed consistent results across different segments, underscoring the robustness of the ETS-infertility link. Conclusion Our findings suggest that environmental tobacco smoke exposure may be a contributing factor to infertility. These results reinforce the recommendation for women in their reproductive years to avoid ETS exposure, especially when planning for pregnancy.
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Li H, Wang R, Wei X, Zhang C, Pei W, Zhang X, Yang Z, Li Z, Zhang Y, Shi Y, Wang Y, Wang X. GSTP1 rs4147581 C>G and NLRP3 rs3806265 T>C as Risk Factors for Chronic Obstructive Pulmonary Disease: A Case-Control Study. Int J Chron Obstruct Pulmon Dis 2024; 19:489-500. [PMID: 38410140 PMCID: PMC10896110 DOI: 10.2147/copd.s445680] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2023] [Accepted: 01/31/2024] [Indexed: 02/28/2024] Open
Abstract
Background Chronic obstructive pulmonary disease (COPD) is a chronic respiratory ailment influenced by a blend of genetic and environmental factors. Inflammatory response and an imbalance in oxidative-antioxidant mechanisms constitute the primary pathogenesis of COPD. Glutathione S-transferase P1(GSTP1) plays a pivotal role as an antioxidant enzyme in regulating oxidative-antioxidant responses in the pulmonary system. The activation of the NOD-like receptor thermal protein domain (NLRP3) inflammatory vesicle can trigger an inflammatory response. Several investigations have implicated GSTP1 and NLRP3 in the progression of COPD; nonetheless, there remains debate regarding this mechanism. Methods Employing a case-control study design, 312 individuals diagnosed with COPD and 314 healthy controls were recruited from Gansu Province to evaluate the correlation between GSTP1 (rs4147581C>G and rs1695A>G) and NLRP3 (rs3806265T>C and rs10754558G>C) polymorphisms and the susceptibility to COPD. Results The presence of the GSTP1 rs4147581G allele substantially elevated the susceptibility to COPD (CGvs.CC:OR=3.11,95% CI=1.961-4.935, P<0.001;GGvs.CC:OR=2.065,95% CI=1.273-3.350, P=0.003; CG+GGvs.CC:OR=2.594,95% CI=1.718-3.916, P<0.001). Similarly, the NLRP3rs3806265T allele significantly increased the susceptibility to COPD (TC:TT:OR=0.432,95% CI=0.296-0.630; TC+CCvs.TT:OR=2.132,95% CI=1.479-3.074, P<0.001). However, no statistically significant association was discerned between the rs1695A>G and rs10754558G>C polymorphisms and COPD susceptibility (P>0.05). Conclusion In summary, this study ascertained that the GSTP1 rs4147581C>G polymorphism is associated with increased COPD susceptibility, with the G allele elevating the risk of COPD. Similarly, the NLRP3 rs3806265T>C polymorphism is linked to elevated COPD susceptibility, with the T allele heightening the risk of COPD.
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Affiliation(s)
- Honge Li
- Institute of Public Health, Gansu University of Chinese Medicine, Lanzhou, Gansu, People’s Republic of China
| | - Raorao Wang
- Institute of Public Health, Gansu University of Chinese Medicine, Lanzhou, Gansu, People’s Republic of China
| | - Xueyan Wei
- Institute of Public Health, Gansu University of Chinese Medicine, Lanzhou, Gansu, People’s Republic of China
| | - Chunyan Zhang
- Institute of Public Health, Gansu University of Chinese Medicine, Lanzhou, Gansu, People’s Republic of China
| | - Wenhui Pei
- Institute of Public Health, Gansu University of Chinese Medicine, Lanzhou, Gansu, People’s Republic of China
| | - Xuhui Zhang
- Department of Respiratory Medicine, Affiliated Hospital of Gansu University of Chinese Medicine, Lanzhou, Gansu, People’s Republic of China
| | - Zhen Yang
- Institute of Public Health, Gansu University of Chinese Medicine, Lanzhou, Gansu, People’s Republic of China
| | - Zhi Li
- The State Key Laboratory of Respiratory Disease, The First Affiliated Hospital, Institute of Public Health, Guangzhou Medical University, Guangzhou, Guangdong, People’s Republic of China
| | - Yuhuan Zhang
- Institute of Public Health, Gansu University of Chinese Medicine, Lanzhou, Gansu, People’s Republic of China
| | - Yanli Shi
- Institute of Public Health, Gansu University of Chinese Medicine, Lanzhou, Gansu, People’s Republic of China
| | - Yunchao Wang
- Institute of Basic Medicine, Gansu University of Chinese Medicine, Lanzhou, Gansu, People’s Republic of China
| | - Xinhua Wang
- Institute of Public Health, Gansu University of Chinese Medicine, Lanzhou, Gansu, People’s Republic of China
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Zeng S, Nishihama M, Weldemichael L, Lozier H, Gold WM, Arjomandi M. Effect of twice daily inhaled albuterol on cardiopulmonary exercise outcomes, dynamic hyperinflation, and symptoms in secondhand tobacco-exposed persons with preserved spirometry and air trapping: a randomized controlled trial. BMC Pulm Med 2024; 24:44. [PMID: 38245665 PMCID: PMC10799390 DOI: 10.1186/s12890-023-02808-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2023] [Accepted: 12/07/2023] [Indexed: 01/22/2024] Open
Abstract
BACKGROUND In tobacco-exposed persons with preserved spirometry (active smoking or secondhand smoke [SHS] exposure), air trapping can identify a subset with worse symptoms and exercise capacity. The physiologic nature of air trapping in the absence of spirometric airflow obstruction remains unclear. The aim of this study was to examine the underlying pathophysiology of air trapping in the context of preserved spirometry and to determine the utility of bronchodilators in SHS tobacco-exposed persons with preserved spirometry and air trapping. METHODS We performed a double-blinded placebo-controlled crossover randomized clinical trial in nonsmoking individuals at risk for COPD due to exposure to occupational SHS who had preserved spirometry and air trapping defined as either a residual volume-to-total lung capacity ratio (RV/TLC) > 0.35 or presence of expiratory flow limitation (EFL, overlap of tidal breathing on maximum expiratory flow-volume loop) on spirometry at rest or during cardiopulmonary exercise testing (CPET). Those with asthma or obesity were excluded. Participants underwent CPET at baseline and after 4-week trials of twice daily inhalation of 180 mcg of albuterol or placebo separated by a 2-week washout period. The primary outcome was peak oxygen consumption (VO2) on CPET. Data was analyzed by both intention-to-treat and per-protocol based on adherence to treatment prescribed. RESULTS Overall, 42 participants completed the entire study (66 ± 8 years old, 91% female; forced expiratory volume in 1 s [FEV1] = 103 ± 16% predicted; FEV1 to forced vital capacity [FVC] ratio = 0.75 ± 0.05; RV/TLC = 0.39 ± 0.07; 85.7% with EFL). Adherence was high with 87% and 93% of prescribed doses taken in the treatment and placebo arms of the study, respectively (P = 0.349 for comparison between the two arms). There was no significant improvement in the primary or secondary outcomes by intention-to-treat or per-protocol analysis. In per-protocol subgroup analysis of those with RV/TLC > 0.35 and ≥ 90% adherence (n = 27), albuterol caused an improvement in peak VO2 (parameter estimate [95% confidence interval] = 0.108 [0.014, 0.202]; P = 0.037), tidal volume, minute ventilation, dynamic hyperinflation, and oxygen-pulse (all P < 0.05), but no change in symptoms or physical activity. CONCLUSIONS Albuterol may improve exercise capacity in the subgroup of SHS tobacco-exposed persons with preserved spirometry and substantial air trapping. These findings suggest that air trapping in pre-COPD may be related to small airway disease that is not considered significant by spirometric indices of airflow obstruction.
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Affiliation(s)
- Siyang Zeng
- Department of Biomedical Informatics and Medical Education, University of Washington, Seattle, WA, USA
- Pulmonary and Critical Care Section, San Francisco Veterans Affairs Health Care System, Building 203, Room 3A-128, Mailstop 111-D, 4150 Clement Street, San Francisco, CA, 94121, USA
- Department of Medicine, Division of Pulmonary and Critical Care Medicine, University of California, San Francisco, CA, USA
| | - Melissa Nishihama
- Pulmonary and Critical Care Section, San Francisco Veterans Affairs Health Care System, Building 203, Room 3A-128, Mailstop 111-D, 4150 Clement Street, San Francisco, CA, 94121, USA
- Department of Medicine, Division of Pulmonary and Critical Care Medicine, University of California, San Francisco, CA, USA
| | - Lemlem Weldemichael
- Pulmonary and Critical Care Section, San Francisco Veterans Affairs Health Care System, Building 203, Room 3A-128, Mailstop 111-D, 4150 Clement Street, San Francisco, CA, 94121, USA
- Department of Medicine, Division of Pulmonary and Critical Care Medicine, University of California, San Francisco, CA, USA
| | - Helen Lozier
- Pulmonary and Critical Care Section, San Francisco Veterans Affairs Health Care System, Building 203, Room 3A-128, Mailstop 111-D, 4150 Clement Street, San Francisco, CA, 94121, USA
- Department of Medicine, Division of Pulmonary and Critical Care Medicine, University of California, San Francisco, CA, USA
- Carver College of Medicine, University of Iowa, Iowa City, USA
| | - Warren M Gold
- Department of Medicine, Division of Pulmonary and Critical Care Medicine, University of California, San Francisco, CA, USA
| | - Mehrdad Arjomandi
- Pulmonary and Critical Care Section, San Francisco Veterans Affairs Health Care System, Building 203, Room 3A-128, Mailstop 111-D, 4150 Clement Street, San Francisco, CA, 94121, USA.
- Department of Medicine, Division of Pulmonary and Critical Care Medicine, University of California, San Francisco, CA, USA.
- Department of Medicine, Division of Occupational, Environmental, and Climate Medicine, University of California, San Francisco, CA, USA.
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Shakeel I, Ashraf A, Afzal M, Sohal SS, Islam A, Kazim SN, Hassan MI. The Molecular Blueprint for Chronic Obstructive Pulmonary Disease (COPD): A New Paradigm for Diagnosis and Therapeutics. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2023; 2023:2297559. [PMID: 38155869 PMCID: PMC10754640 DOI: 10.1155/2023/2297559] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Revised: 10/28/2023] [Accepted: 11/30/2023] [Indexed: 12/30/2023]
Abstract
The global prevalence of chronic obstructive pulmonary disease (COPD) has increased over the last decade and has emerged as the third leading cause of death worldwide. It is characterized by emphysema with prolonged airflow limitation. COPD patients are more susceptible to COVID-19 and increase the disease severity about four times. The most used drugs to treat it show numerous side effects, including immune suppression and infection. This review discusses a narrative opinion and critical review of COPD. We present different aspects of the disease, from cellular and inflammatory responses to cigarette smoking in COPD and signaling pathways. In addition, we highlighted various risk factors for developing COPD apart from smoking, like occupational exposure, pollutants, genetic factors, gender, etc. After the recent elucidation of the underlying inflammatory signaling pathways in COPD, new molecular targeted drug candidates for COPD are signal-transmitting substances. We further summarize recent developments in biomarker discovery for COPD and its implications for disease diagnosis. In addition, we discuss novel drug targets for COPD that could be explored for drug development and subsequent clinical management of cardiovascular disease and COVID-19, commonly associated with COPD. Our extensive analysis of COPD cause, etiology, diagnosis, and therapeutic will provide a better understanding of the disease and the development of effective therapeutic options. In-depth knowledge of the underlying mechanism will offer deeper insights into identifying novel molecular targets for developing potent therapeutics and biomarkers of disease diagnosis.
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Affiliation(s)
- Ilma Shakeel
- Department of Zoology, Aligarh Muslim University, Aligarh, Uttar Pradesh 202002, India
- Centre for Interdisciplinary Research in Basic Sciences, Jamia Millia Islamia, Jamia Nagar, New Delhi 110025, India
| | - Anam Ashraf
- Centre for Interdisciplinary Research in Basic Sciences, Jamia Millia Islamia, Jamia Nagar, New Delhi 110025, India
| | - Mohammad Afzal
- Department of Zoology, Aligarh Muslim University, Aligarh, Uttar Pradesh 202002, India
| | - Sukhwinder Singh Sohal
- Respiratory Translational Research Group, Department of Laboratory Medicine, School of Health Sciences, College of Health and Medicine, University of Tasmania, Launceston, Tasmania 7248, Australia
| | - Asimul Islam
- Centre for Interdisciplinary Research in Basic Sciences, Jamia Millia Islamia, Jamia Nagar, New Delhi 110025, India
| | - Syed Naqui Kazim
- Centre for Interdisciplinary Research in Basic Sciences, Jamia Millia Islamia, Jamia Nagar, New Delhi 110025, India
| | - Md. Imtaiyaz Hassan
- Centre for Interdisciplinary Research in Basic Sciences, Jamia Millia Islamia, Jamia Nagar, New Delhi 110025, India
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Wang Q, Goracci C, Sundar IK, Rahman I. Environmental tobacco smoke exposure exaggerates bleomycin- induced collagen overexpression during pulmonary fibrogenesis. RESEARCH SQUARE 2023:rs.3.rs-3406872. [PMID: 37886473 PMCID: PMC10602094 DOI: 10.21203/rs.3.rs-3406872/v1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/28/2023]
Abstract
Environmental tobacco smoke (ETS) is known to cause lung inflammatory and injurious responses. Smoke exposure is associated with the pathobiology related to lung fibrosis, whereas the mechanism by which ETS exposure augments lung fibrogenesis is unclear. We hypothesized that ETS exposure could exacerbate fibrotic responses via collagen dynamic dysregulation and complement activation. C57BL/6J and p16-3MR mice were exposed to ETS followed by bleomycin administration. ETS exposure exacerbated bleomycin-induced collagen and lysyl oxidase overexpression in the fibrotic lesion. ETS exposure also led to augmented bleomycin-induced upregulation of C3 and C3AR, which are pro-fibrotic markers. Moreover, overexpressed collagens and C3 levels were highly significant in males than females. The old mice (17 months old) were exposed to ETS and treated with bleomycin to induce fibrogenesis, since fibrogenesis is an aging-associated disease. Fewer gene and protein dysregulations trends were identified between ETS exposure with the bleomycin group and the bleomycin alone group in old mice. Based on our findings, we suggested that ETS exposure increases the risk of developing severe lung fibrotic responses via collagen overexpression and lysyl oxidase-mediated collagen stabilization in the fibrotic lesion. ETS exposure also potentially affected the complement system activation induced by bleomycin. Further, male mice were more susceptible than females during fibrogenesis exacerbation.
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Chen P, Li Y, Wu D, Liu F, Cao C. Secondhand Smoke Exposure and the Risk of Chronic Obstructive Pulmonary Disease: A Systematic Review and Meta-Analysis. Int J Chron Obstruct Pulmon Dis 2023; 18:1067-1076. [PMID: 37309392 PMCID: PMC10257914 DOI: 10.2147/copd.s403158] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2023] [Accepted: 05/13/2023] [Indexed: 06/14/2023] Open
Abstract
Background Many studies have shown that active smoking leads to an increasing incidence of chronic obstructive pulmonary disease (COPD). However, studies interested in the effects of secondhand smoke exposure (SHS exposure) on COPD were less or underappreciated. Methods A systematic review and meta-analysis was conducted to investigate the association between SHS exposure and the risk of COPD. Three databases (PubMed, Embase and Web of Science) were searched to obtain data. After assessing the study quality, stratified analyses were performed according to the region, gender, and duration of exposure. Cochran's Q and I2 were utilized for heterogeneity assessment. To assess publication bias, we used a funnel plot and Egger's test. Results A total of 15 studies (6 cross-sectional studies, 6 case-control studies, and 3 cohort studies) with 25,592 participants were involved in this meta-analysis. This study showed that SHS exposure was associated with an increased risk of COPD (odds ratio (OR): 2.25, 95% CI: 1.40-3.62, I2 = 98%, p < 0.01 for heterogeneity based on a random-effects analysis model), especially in those with a longer time exposure of more than 5 years was 4.38 (95% CI: 1.28-15.00, I2 = 89%, p < 0.01 for heterogeneity based on a random-effects analysis model). In addition, SHS exposure also increases the risk of COPD in women (odds ratio (OR): 2.02, 95% CI: 1.52-2.67, I2 = 0%, p = 0.89 for heterogeneity based on a random-effects analysis model). Conclusion The findings suggest that SHS exposure is associated with the risk of COPD, especially for individuals with a long time exposed. Trial Registry Prospero CRD42022329421.
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Affiliation(s)
- Peixv Chen
- Department of Respiratory and Critical Care Medicine, Key Laboratory of Respiratory Disease of Ningbo, First Affiliated Hospital of Ningbo University, Ningbo, Zhejiang, 315000, People’s Republic of China
- Medical College of Ningbo University, Ningbo, Zhejiang, 315000, People’s Republic of China
| | - Yiting Li
- Department of Respiratory and Critical Care Medicine, Key Laboratory of Respiratory Disease of Ningbo, First Affiliated Hospital of Ningbo University, Ningbo, Zhejiang, 315000, People’s Republic of China
- Medical College of Ningbo University, Ningbo, Zhejiang, 315000, People’s Republic of China
| | - Di Wu
- Department of Respiratory and Critical Care Medicine, Key Laboratory of Respiratory Disease of Ningbo, First Affiliated Hospital of Ningbo University, Ningbo, Zhejiang, 315000, People’s Republic of China
- Medical College of Ningbo University, Ningbo, Zhejiang, 315000, People’s Republic of China
| | - Fang Liu
- Department of Respiratory and Critical Care Medicine, Key Laboratory of Respiratory Disease of Ningbo, First Affiliated Hospital of Ningbo University, Ningbo, Zhejiang, 315000, People’s Republic of China
| | - Chao Cao
- Department of Respiratory and Critical Care Medicine, Key Laboratory of Respiratory Disease of Ningbo, First Affiliated Hospital of Ningbo University, Ningbo, Zhejiang, 315000, People’s Republic of China
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Reddy KD, Oliver BGG. Sexual dimorphism in chronic respiratory diseases. Cell Biosci 2023; 13:47. [PMID: 36882807 PMCID: PMC9993607 DOI: 10.1186/s13578-023-00998-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2023] [Accepted: 02/23/2023] [Indexed: 03/09/2023] Open
Abstract
Sex differences in susceptibility, severity, and progression are prevalent for various diseases in multiple organ systems. This phenomenon is particularly apparent in respiratory diseases. Asthma demonstrates an age-dependent pattern of sexual dimorphism. However, marked differences between males and females exist in other pervasive conditions such as chronic obstructive pulmonary disease (COPD) and lung cancer. The sex hormones estrogen and testosterone are commonly considered the primary factors causing sexual dimorphism in disease. However, how they contribute to differences in disease onset between males and females remains undefined. The sex chromosomes are an under-investigated fundamental form of sexual dimorphism. Recent studies highlight key X and Y-chromosome-linked genes that regulate vital cell processes and can contribute to disease-relevant mechanisms. This review summarises patterns of sex differences in asthma, COPD and lung cancer, highlighting physiological mechanisms causing the observed dimorphism. We also describe the role of the sex hormones and present candidate genes on the sex chromosomes as potential factors contributing to sexual dimorphism in disease.
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Affiliation(s)
- Karosham Diren Reddy
- Respiratory and Cellular Molecular Biology Group, Woolcock Institute of Medical Research, Glebe, NSW, 2037, Australia.
- School of Life Science, University of Technology Sydney, Ultimo, NSW, 2007, Australia.
| | - Brian Gregory George Oliver
- Respiratory and Cellular Molecular Biology Group, Woolcock Institute of Medical Research, Glebe, NSW, 2037, Australia
- School of Life Science, University of Technology Sydney, Ultimo, NSW, 2007, Australia
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Strassmann A, Çolak Y, Serra-Burriel M, Nordestgaard BG, Turk A, Afzal S, Puhan MA. Nationwide indoor smoking ban and impact on smoking behaviour and lung function: a two-population natural experiment. Thorax 2023; 78:144-150. [PMID: 35277448 PMCID: PMC9872239 DOI: 10.1136/thoraxjnl-2021-218436] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Accepted: 02/10/2022] [Indexed: 01/27/2023]
Abstract
INTRODUCTION Many countries have implemented indoor smoking bans over the past two decades. Although smoking bans have been shown to reduce cardiovascular outcomes, little is known about their impact on respiratory health. This study investigated the impact of a nationwide indoor smoking ban on smoking behaviour and lung function. METHODS We used repeated cross-sectional data from two large cohorts of the general population comprising 31 807 Swiss and 62 093 Danish adults. We compared associations between smoking ban and smoking prevalence and prebronchodilator lung function trends in Denmark (indoor smoking ban introduced in 2007) and Switzerland (indoor smoking ban introduced in 2010) from 2005 to 2010 using a quasi-experimental study design. We performed difference-in-difference analyses with linear regression models adjusted for age, sex, weight and height. RESULTS Denmark had a stronger decrease in active smokers compared with Switzerland. Also, forced expiratory volume in the first second was higher in Danish adults than in Swiss adults: 26 mL (95% CI 2.4 to 49) 1 year, 88 mL (65 to 112) 2 years, and 74 mL (51 to 98) 3 years after smoking ban implementation. Correspondingly, forced vital capacity was higher in Danish adults compared with Swiss adults (80 mL (50 to 109) after 1 year and 126 mL (97 to 155) after two and 3 years). Improvements were observed in both never-smokers and ever-smokers, most pronounced in ever-smokers. CONCLUSIONS Nationwide indoor smoking ban is associated with less smoking and improved lung function in the general population. Implementing an indoor smoking ban can improve lung function by influencing smoking behaviour and reducing secondhand smoke.
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Affiliation(s)
- Alexandra Strassmann
- Epidemiology, Biostatistics and Prevention Institute, University of Zurich, Zurich, Switzerland
| | - Yunus Çolak
- Department of Respiratory Medicine, Copenhagen University Hospital - Herlev and Gentofte, Copenhagen, Denmark.,The Copenhagen General Population Study, Copenhagen University Hospital - Herlev and Gentofte, Copenhagen, Denmark.,Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
| | - Miquel Serra-Burriel
- Epidemiology, Biostatistics and Prevention Institute, University of Zurich, Zurich, Switzerland
| | - Børge G Nordestgaard
- The Copenhagen General Population Study, Copenhagen University Hospital - Herlev and Gentofte, Copenhagen, Denmark.,Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark.,Department of Clinical Biochemistry, Copenhagen University Hospital - Herlev and Gentofte, Copenhagen, Denmark
| | | | - Shoaib Afzal
- The Copenhagen General Population Study, Copenhagen University Hospital - Herlev and Gentofte, Copenhagen, Denmark.,Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark.,Department of Clinical Biochemistry, Copenhagen University Hospital - Herlev and Gentofte, Copenhagen, Denmark
| | - Milo A Puhan
- Epidemiology, Biostatistics and Prevention Institute, University of Zurich, Zurich, Switzerland
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11
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HRCT findings in secondhand smokers with respiratory symptoms. Jpn J Radiol 2023; 41:153-163. [PMID: 36121625 DOI: 10.1007/s11604-022-01336-4] [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: 02/15/2022] [Accepted: 09/04/2022] [Indexed: 02/03/2023]
Abstract
PURPOSE The present study aims to investigate the occurrence and severity of HRCT abnormalities in symptomatic never-smokers, passively exposed to cigarette smoke. MATERIALS AND METHODS A total of 135 never-smokers with respiratory symptoms, without underlying lung disease, underwent paired inspiratory-expiratory HRCT and completed the secondhand smoking (SHS) exposure scale questionnaire. Individuals passively exposed to tobacco consisted the secondhand smoking group (SHS group) (n = 68); the remaining 67 controls were never exposed to SHS. Statistical analysis was performed using the Kolmogorov-Smirnov, x2 and Pearson Point-Biserial correlation tests. P < 0.05 was statistically significant. RESULTS HRCT findings in SHS group included bronchial wall thickening (98.5%), mild cylindrical bronchiectasis (44%), ground-glass opacities (17.6%), and mosaic attenuation pattern (53%). Air trapping occurred in 65% of expiratory scans. Differences in occurrence of findings between SHS group participants and controls were statistically significant (p < 0.0001). There was significant correlation between exposure to tobacco smoke in hours/day and in number of cigarettes/day and the presence of mosaic attenuation pattern, ground-glass opacities, cylindrical bronchiectasis and air trapping, respectively (p < 0.05). Cumulative SHS exposure in years was also strongly correlated with the presence of ground-glass opacities, mosaic attenuation pattern, cylindrical bronchiectasis, and air trapping, as well as with the frequency of respiratory symptoms (p < 0.05). CONCLUSION HRCT findings attributed to SHS are mostly related to airway involvement and are correlated with the duration and grade of exposure to environmental tobacco smoke. SHS followed by lifestyle adjustments should be considered in symptomatic non-smokers with such HRCT findings.
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12
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Diaz Del Valle F, Zakrajsek JK, Min SJ, Koff PB, Bell HW, Kincaid KA, Frank DN, Ramakrishnan V, Ghosh M, Vandivier RW. Impact of Airline Secondhand Tobacco Smoke Exposure on Respiratory Health and Lung Function Decades After Exposure Cessation. Chest 2022; 162:556-568. [PMID: 35271841 PMCID: PMC9470742 DOI: 10.1016/j.chest.2022.02.049] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Revised: 02/21/2022] [Accepted: 02/23/2022] [Indexed: 10/18/2022] Open
Abstract
BACKGROUND Twenty-five percent to 45% of COPD is caused by exposures other than active smoking. Secondhand tobacco smoke (SHS) has been suggested as an independent cause of COPD, based on its association with increased respiratory symptoms and a small decrease in lung function, but its impact on respiratory health and lung function after exposure cessation has not been explored. RESEARCH QUESTION What are the consequences of airline SHS exposure on respiratory health and lung function decades after cessation? STUDY DESIGN AND METHODS We performed a cohort study involving flight attendants because of their exposure to SHS that stopped > 20 years ago. We included subjects ≥ 50 years of age with > 1 year vs ≤ 1 year of airline SHS exposure (ie, exposed vs unexposed). Respiratory quality of life, as determined by the St. George's Respiratory Questionnaire (SGRQ), was the primary outcome for respiratory health. Key secondary outcomes included general quality of life (the Rand Corporation modification of the 36-item Short Form Health Survey Questionnaire; RAND-36), respiratory symptoms (COPD Assessment Test; CAT), and spirometry. RESULTS The study enrolled 183 SHS-exposed and 59 unexposed subjects. Exposed subjects were 66.7 years of age, and 90.7% were female. They were hired at 23.8 years of age, were exposed to airline SHS for 16.1 years, and stopped exposure 27.5 years before enrollment. Prior SHS exposure was associated with worsened SGRQ (6.7 units; 95% CI, 2.7-10.7; P = .001), RAND-36 physical and social function, and CAT vs unexposed subjects. SHS exposure did not affect prebronchodilator spirometry or obstruction, but was associated with lower postbronchodilator FEV1 and FEV1/FVC, total lung capacity, and diffusing capacity of the lungs for carbon monoxide in a subset of subjects. Former smoking and SHS exposure synergistically worsened SGRQ (β = 8.4; 95% CI, 0.4-16.4; P = .04). SHS exposure in people who never smoked replicated primary results and was associated with worsened SGRQ vs unexposed people (4.7 units; 95% CI, 0.7-7.0; P = .006). INTERPRETATION Almost three decades after exposure ended, airline SHS exposure is strongly and dose-dependently associated with worsened respiratory health, but less robustly associated with airflow abnormalities used to diagnose COPD.
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Affiliation(s)
- Fernando Diaz Del Valle
- Division of Pulmonary Sciences and Critical Care Medicine, Colorado Pulmonary Outcomes Research Group (CPOR), Aurora, CO
| | - Jonathan K Zakrajsek
- Division of Pulmonary Sciences and Critical Care Medicine, Colorado Pulmonary Outcomes Research Group (CPOR), Aurora, CO
| | - Sung-Joon Min
- Division of Healthcare Policy and Research, University of Colorado Denver Anschutz Medical Campus, Aurora, CO
| | - Patricia B Koff
- Division of Pulmonary Sciences and Critical Care Medicine, Colorado Pulmonary Outcomes Research Group (CPOR), Aurora, CO
| | - Harold W Bell
- Division of Pulmonary Sciences and Critical Care Medicine, Colorado Pulmonary Outcomes Research Group (CPOR), Aurora, CO
| | - Keegan A Kincaid
- Division of Pulmonary Sciences and Critical Care Medicine, Colorado Pulmonary Outcomes Research Group (CPOR), Aurora, CO
| | - Daniel N Frank
- Division of Infectious Diseases, Department of Medicine, University of Colorado Denver Anschutz Medical Campus, Aurora, CO
| | - Vijay Ramakrishnan
- Department of Otolaryngology-Head and Neck Surgery, University of Colorado Denver Anschutz Medical Campus, Aurora, CO
| | - Moumita Ghosh
- Division of Pulmonary Sciences and Critical Care Medicine, Colorado Pulmonary Outcomes Research Group (CPOR), Aurora, CO
| | - R William Vandivier
- Division of Pulmonary Sciences and Critical Care Medicine, Colorado Pulmonary Outcomes Research Group (CPOR), Aurora, CO.
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13
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Ma L, Huo X, Yang A, Yu S, Ke H, Zhang M, Bai Y. Metal Exposure, Smoking, and the Risk of COPD: A Nested Case-Control Study in a Chinese Occupational Population. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:ijerph191710896. [PMID: 36078612 PMCID: PMC9518333 DOI: 10.3390/ijerph191710896] [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: 07/14/2022] [Revised: 08/21/2022] [Accepted: 08/30/2022] [Indexed: 05/17/2023]
Abstract
Chronic obstructive pulmonary disease (COPD) was the third leading cause of death worldwide in 2019, with a significant disease burden. We conducted a nested case-control study using data from the China Metal-Exposed Workers Cohort Study (Jinchang Cohort) and assessed the associations of exposure to metals and tobacco smoking with the risk of COPD. We used the logistic regression model and the interaction multiplication model to assess the independent and combined effects of heavy metal and smoke exposure on COPD. The cumulative incidence of COPD was 1.04% in 21,560 participants during a median of two years of follow-up. The risk of COPD was significantly elevated with an increase in the amount of tobacco smoked daily (p < 0.05), the number of years of smoking (ptrend < 0.05), and the number of packs of cigarettes smoked per year (ptrend < 0.01). Compared with the low metal exposure group, the adjusted OR was 1.22 (95% CI: 0.85-1.76) in the medium exposure group (mining/production workers) and 1.50 (95% CI: 1.03-2.18) in the high exposure group; smoking and metal exposure had a combined effect on the incidence of COPD (pinteraction < 0.01), with an OR of 4.60 for those with >40 pack-years of smoking who also had the highest metal exposures. Both exposures to metals and smoking were associated with the risk of COPD, and there was an interaction between the two exposures for the risk of COPD.
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Affiliation(s)
- Li Ma
- School of Public Health, Lanzhou University, Lanzhou 730000, China
- Correspondence: (L.M.); (Y.B.); Tel.: +86-931-8915191 (L.M.); +86-931-8915526 (Y.B.)
| | - Xinxin Huo
- School of Public Health, Lanzhou University, Lanzhou 730000, China
| | - Aimin Yang
- Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Prince of Wales Hospital, Hong Kong SAR, China
| | - Shuxia Yu
- School of Public Health, Lanzhou University, Lanzhou 730000, China
| | - Hongxia Ke
- School of Public Health, Lanzhou University, Lanzhou 730000, China
| | - Mingxia Zhang
- School of Public Health, Lanzhou University, Lanzhou 730000, China
| | - Yana Bai
- School of Public Health, Lanzhou University, Lanzhou 730000, China
- Correspondence: (L.M.); (Y.B.); Tel.: +86-931-8915191 (L.M.); +86-931-8915526 (Y.B.)
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14
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Abstract
Asthma COPD Overlap has consistently reported to be associated with an increase burden of disease but the impact on lung function decline and mortality varies by study. The prevalence increases with age but the relationship with gender also varies with the study population. The variability in the prevalence and clinical characteristics of ACO is linked to differences in how chronic obstructive pulmonary disease (COPD) and asthma are defined, including diagnostic criteria (spirometry-based vs. clinical or symptom-based diagnoses vs. claims data), the population studied, the geographic region and environment and a consensus approach to the diagnosis of ACO is needed to allow meaningful and consistent epidemiologic information to be generated about this condition.
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Affiliation(s)
- Anne L Fuhlbrigge
- Pulmonary Sciences and Critical Care Medicine, Department of Medicine, University of Colorado School of Medicine, Fitzsimons Building | 13001 East 17th Place, Aurora, CO 80045, USA.
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15
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Jiang G, Wu J, Weidhaas J, Li X, Chen Y, Mueller J, Li J, Kumar M, Zhou X, Arora S, Haramoto E, Sherchan S, Orive G, Lertxundi U, Honda R, Kitajima M, Jackson G. Artificial neural network-based estimation of COVID-19 case numbers and effective reproduction rate using wastewater-based epidemiology. WATER RESEARCH 2022; 218:118451. [PMID: 35447417 PMCID: PMC9006161 DOI: 10.1016/j.watres.2022.118451] [Citation(s) in RCA: 40] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2022] [Revised: 04/02/2022] [Accepted: 04/10/2022] [Indexed: 05/06/2023]
Abstract
As a cost-effective and objective population-wide surveillance tool, wastewater-based epidemiology (WBE) has been widely implemented worldwide to monitor the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) RNA concentration in wastewater. However, viral concentrations or loads in wastewater often correlate poorly with clinical case numbers. To date, there is no reliable method to back-estimate the coronavirus disease 2019 (COVID-19) case numbers from SARS-CoV-2 concentrations in wastewater. This greatly limits WBE in achieving its full potential in monitoring the unfolding pandemic. The exponentially growing SARS-CoV-2 WBE dataset, on the other hand, offers an opportunity to develop data-driven models for the estimation of COVID-19 case numbers (both incidence and prevalence) and transmission dynamics (effective reproduction rate). This study developed artificial neural network (ANN) models by innovatively expanding a conventional WBE dataset to include catchment, weather, clinical testing coverage and vaccination rate. The ANN models were trained and evaluated with a comprehensive state-wide wastewater monitoring dataset from Utah, USA during May 2020 to December 2021. In diverse sewer catchments, ANN models were found to accurately estimate the COVID-19 prevalence and incidence rates, with excellent precision for prevalence rates. Also, an ANN model was developed to estimate the effective reproduction number from both wastewater data and other pertinent factors affecting viral transmission and pandemic dynamics. The established ANN model was successfully validated for its transferability to other states or countries using the WBE dataset from Wisconsin, USA.
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Affiliation(s)
- Guangming Jiang
- School of Civil, Mining and Environmental Engineering, University of Wollongong, Australia; Illawarra Health and Medical Research Institute (IHMRI), University of Wollongong, Wollongong, Australia.
| | - Jiangping Wu
- School of Civil, Mining and Environmental Engineering, University of Wollongong, Australia
| | - Jennifer Weidhaas
- University of Utah, Civil and Environmental Engineering, 110 Central Campus Drive, Suite 2000, Salt Lake City, UT, USA
| | - Xuan Li
- School of Civil, Mining and Environmental Engineering, University of Wollongong, Australia
| | - Yan Chen
- School of Civil, Mining and Environmental Engineering, University of Wollongong, Australia
| | - Jochen Mueller
- Queensland Alliance for Environmental Health Sciences, The University of Queensland, Australia
| | - Jiaying Li
- Queensland Alliance for Environmental Health Sciences, The University of Queensland, Australia
| | - Manish Kumar
- Sustainability Cluster, School of Engineering, University of Petroleum & Energy Studies, Dehradun, Uttarakhand 248007, India
| | - Xu Zhou
- Shenzhen Engineering Laboratory of Microalgal Bioenergy, Harbin Institute of Technology (Shenzhen), Shenzhen 518055, China; State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, China
| | - Sudipti Arora
- Dr. B. Lal Institute of Biotechnology, Jaipur, India
| | - Eiji Haramoto
- Interdisciplinary Center for River Basin Environment, University of Yamanashi, Kofu, Japan
| | - Samendra Sherchan
- Department of Environmental Health Sciences, Tulane University, New Orleans, LA, USA
| | - Gorka Orive
- NanoBioCel Group, Laboratory of Pharmaceutics, School of Pharmacy, University of the Basque Country UPV/EHU, Paseo de la Universidad 7, Vitoria-Gasteiz 01006, Spain; Biomedical Research Networking Centre in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Vitoria-Gasteiz, Spain
| | - Unax Lertxundi
- NanoBioCel Group, Laboratory of Pharmaceutics, School of Pharmacy, University of the Basque Country UPV/EHU, Paseo de la Universidad 7, Vitoria-Gasteiz 01006, Spain; Biomedical Research Networking Centre in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Vitoria-Gasteiz, Spain
| | - Ryo Honda
- Faculty of Geosciences and Civil Engineering, Kanazawa University, Kanazawa 920-1192, Japan
| | - Masaaki Kitajima
- Division of Environmental Engineering, Hokkaido University, Hokkaido 060-8628, Japan
| | - Greg Jackson
- Queensland Alliance for Environmental Health Sciences (QAEHS), The University of Queensland, 4102, Brisbane, Australia
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Drapkina OM, Kontsevaya AV, Kalinina AM, Avdeev SM, Agaltsov MV, Alexandrova LM, Antsiferova AA, Aronov DM, Akhmedzhanov NM, Balanova YA, Balakhonova TV, Berns SA, Bochkarev MV, Bochkareva EV, Bubnova MV, Budnevsky AV, Gambaryan MG, Gorbunov VM, Gorny BE, Gorshkov AY, Gumanova NG, Dadaeva VA, Drozdova LY, Egorov VA, Eliashevich SO, Ershova AI, Ivanova ES, Imaeva AE, Ipatov PV, Kaprin AD, Karamnova NS, Kobalava ZD, Konradi AO, Kopylova OV, Korostovtseva LS, Kotova MB, Kulikova MS, Lavrenova EA, Lischenko OV, Lopatina MV, Lukina YV, Lukyanov MM, Mayev IV, Mamedov MN, Markelova SV, Martsevich SY, Metelskaya VA, Meshkov AN, Milushkina OY, Mukaneeva DK, Myrzamatova AO, Nebieridze DV, Orlov DO, Poddubskaya EA, Popovich MV, Popovkina OE, Potievskaya VI, Prozorova GG, Rakovskaya YS, Rotar OP, Rybakov IA, Sviryaev YV, Skripnikova IA, Skoblina NA, Smirnova MI, Starinsky VV, Tolpygina SN, Usova EV, Khailova ZV, Shalnova SA, Shepel RN, Shishkova VN, Yavelov IS. 2022 Prevention of chronic non-communicable diseases in Of the Russian Federation. National guidelines. КАРДИОВАСКУЛЯРНАЯ ТЕРАПИЯ И ПРОФИЛАКТИКА 2022. [DOI: 10.15829/1728-8800-2022-3235] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
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17
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Yadav RS, Kant S, Tripathi PM, Pathak AK, Mahdi AA. Transcription factor NF-κB, interleukin-1β, and interleukin-8 expression and its association with tobacco smoking and severity in chronic obstructive pulmonary disease. GENE REPORTS 2022. [DOI: 10.1016/j.genrep.2021.101453] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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18
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Kaygusuz MH, Oral Tapan O, Tapan U, Genc S. Balance impairment and cognitive dysfunction in patients with chronic obstructive pulmonary disease under 65 years. THE CLINICAL RESPIRATORY JOURNAL 2022; 16:200-207. [PMID: 35081270 PMCID: PMC9060058 DOI: 10.1111/crj.13469] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Revised: 12/06/2021] [Accepted: 12/10/2021] [Indexed: 11/27/2022]
Abstract
Objective Balance and cognitive problems may develop in COPD. Studies investigating cognitive functions are mostly in elderly patients, and the number of studies on balance impairment is less than studies about cognitive dysfunction in COPD. We aimed to evaluate both balance and cognitive functions in patients with COPD under 65 years. Methods A total of 60 COPD patients and 60 healthy control group were enrolled. The patients with COPD were divided into two groups due to dyspnea severity. Demographic data and dyspnea scores of all patients were recorded. BECK depression scale, standardized Mini Mental Test (MMT), and BERG balance scale were applied to the individuals. Factors affecting BERG balance scale were evaluated. Results BERG balance scale and MMT values were found to be significantly lower in patients with COPD compared with the control group (p = 0.009). It was observed that the mean values of BERG balance scale and MMT were significantly low in the severe dyspnea group. BERG scale had significant correlations with MMT (rho = 0.331, p = 0.001), BECK (rho = −0.222, p = 0.016), age (rho = −0.318, p = 0.018), MMRC (rho = −0.368, p < 0.001), CAT (rho = −0.338, p = 0.008), FEV1% (rho = 0.307, p = 0.017), SpO2 (rho = 0.448, p < 0.001), and number of hospitalization per year (rho = −0.316, p = 0.014). According to the results of multiple linear regression analysis, the effect of oxygen saturation on BERG was found to be statistically significant (B = 0.512, p = 0.008). Conclusions Balance tests in patients with COPD under the age of 65 are significantly low when compared with healthy controls at the same age. Balance and cognitive functions are significantly associated with each other. It may be beneficial to perform balance and cognitive function tests earlier even at the beginning of the treatment period of COPD, and strategies should be planned to prevent the progression of functional losses.
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Affiliation(s)
| | - Ozge Oral Tapan
- Department of Pulmonology, Mugla Sitki Kocman University, Mugla, Turkey
| | - Utku Tapan
- Department of Pulmonology, Mugla Sitki Kocman University, Mugla, Turkey
| | - Sebahat Genc
- Department of Pulmonology, Mugla Sitki Kocman University, Mugla, Turkey
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19
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Chen H, Liu X, Gao X, Lv Y, Zhou L, Shi J, Wei W, Huang J, Deng L, Wang Z, Jin Y, Yu W. Epidemiological evidence relating risk factors to chronic obstructive pulmonary disease in China: A systematic review and meta-analysis. PLoS One 2021; 16:e0261692. [PMID: 34962941 PMCID: PMC8714110 DOI: 10.1371/journal.pone.0261692] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Accepted: 12/08/2021] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Chronic obstructive pulmonary disease (COPD), the most common chronic respiratory disease worldwide, not only leads to the decline of pulmonary function and quality of life consecutively, but also has become a major economic burden on individuals, families, and society in China. The purpose of this meta-analysis was to explore the risk factors for developing COPD in the Chinese population that resides in China and to provide a theoretical basis for the early prevention of COPD. METHODS A total of 2457 cross-sectional, case-control, and cohort studies published related to risk factors for COPD in China were searched. Based on the inclusion and exclusion criteria, 20 articles were selected. Stata 11.0 was used for meta-analysis. After merging the data, the pooled effect and 95% confidence intervals (CIs) were calculated to assess the association between risk factors and COPD. Heterogeneity between studies was assessed using I2 and Cochran's Q tests. Begg's test was used to assess publication bias. RESULTS Exposure to particulate matter less than 2.5 μm in diameter (PM2.5) (pooled effect = 1.73; 95%CI: 1.16~2.58; P <0.01), smoking history (pooled effect = 2.58; 95%CI: 2.00~3.32; P <0.01), passive smoking history (pooled effect = 1.39; 95%CI: 1.03~1.87; P = 0.03), male sex(pooled effect = 1.70; 95%CI: 1.31~2.22; P <0.01), body mass index (BMI) <18.5 kg/m2 (pooled effect = 1.73; 95%CI: 1.32~2.25; P <0.01), exposure to biomass burning emissions (pooled effect = 1.65; 95%CI: 1.32~2.06; P <0.01), childhood respiratory infections (pooled effect = 3.44; 95%CI: 1.33~8.90; P = 0.01), residence (pooled effect = 1.24; 95%CI: 1.09~1.42; P <0.01), and a family history of respiratory diseases (pooled effect = 2.04; 95%CI: 1.53~2.71; P <0.01) were risk factors for COPD in the Chinese population. CONCLUSION Early prevention of COPD could be accomplished by quitting smoking, reducing exposure to air pollutants and biomass burning emissions, maintaining body mass index between 18.5 kg/m2 and 28 kg/m2, protecting children from respiratory infections, adopting active treatments to children with respiratory diseases, and conducting regular screening for those with family history of respiratory diseases.
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Affiliation(s)
- Hong Chen
- School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xiang Liu
- Department of Respiratory Disease, The 903 Hospital of PLA, Hangzhou, Zhejiang, China
| | - Xiang Gao
- School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yipeng Lv
- School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Liang Zhou
- School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jianwei Shi
- School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Wei Wei
- Department of general practice, Dapuqiao Community Health Service Center of Huangpu District, Shanghai, China
| | - Jiaoling Huang
- School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Lijia Deng
- School of informatics, The University of Leicester, Leicester, United Kingdom
| | - Zhaoxin Wang
- School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Ying Jin
- Department of general practice, Dapuqiao Community Health Service Center of Huangpu District, Shanghai, China
- * E-mail: (WY); (YJ)
| | - Wenya Yu
- School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- * E-mail: (WY); (YJ)
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20
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Almeida-da-Silva CLC, Matshik Dakafay H, Liu K, Ojcius DM. Cigarette Smoke Stimulates SARS-CoV-2 Internalization by Activating AhR and Increasing ACE2 Expression in Human Gingival Epithelial Cells. Int J Mol Sci 2021; 22:ijms22147669. [PMID: 34299289 PMCID: PMC8307094 DOI: 10.3390/ijms22147669] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2021] [Revised: 07/09/2021] [Accepted: 07/14/2021] [Indexed: 02/06/2023] Open
Abstract
A large body of evidence shows the harmful effects of cigarette smoke to oral and systemic health. More recently, a link between smoking and susceptibility to coronavirus disease 2019 (COVID-19) was proposed. COVID-19 is due to infection with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), which uses the receptor ACE2 and the protease TMPRSS2 for entry into host cells, thereby infecting cells of the respiratory tract and the oral cavity. Here, we examined the effects of cigarette smoke on the expression of SARS-CoV-2 receptors and infection in human gingival epithelial cells (GECs). We found that cigarette smoke condensates (CSC) upregulated ACE2 and TMPRSS2 expression in GECs, and that CSC activated aryl hydrocarbon receptor (AhR) signaling in the oral cells. ACE2 was known to mediate SARS-CoV-2 internalization, and we demonstrate that CSC treatment potentiated the internalization of SARS-CoV-2 pseudovirus in GECs in an AhR-dependent manner. AhR depletion using small interference RNA decreased SARS-CoV-2 pseudovirus internalization in CSC-treated GECs compared with control GECs. Our study reveals that cigarette smoke upregulates SARS-CoV-2 receptor expression and infection in oral cells. Understanding the mechanisms involved in SARS-CoV-2 infection in cells of the oral cavity may suggest therapeutic interventions for preventing viral infection and transmission.
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Affiliation(s)
- Cassio Luiz Coutinho Almeida-da-Silva
- Department of Biomedical Sciences, Arthur A. Dugoni School of Dentistry, University of the Pacific, San Francisco, CA 94103, USA;
- Correspondence: (C.L.C.A.-d.-S.); (D.M.O.)
| | - Harmony Matshik Dakafay
- Department of Biomedical Sciences, Arthur A. Dugoni School of Dentistry, University of the Pacific, San Francisco, CA 94103, USA;
| | - Kaitlyn Liu
- Dental Surgery Program, Arthur A. Dugoni School of Dentistry, University of the Pacific, San Francisco, CA 94103, USA;
| | - David M. Ojcius
- Department of Biomedical Sciences, Arthur A. Dugoni School of Dentistry, University of the Pacific, San Francisco, CA 94103, USA;
- Correspondence: (C.L.C.A.-d.-S.); (D.M.O.)
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21
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The relationship between self-effıcacy and life satisfaction in patients with chronic obstructive pulmonary disease. J Public Health (Oxf) 2021. [DOI: 10.1007/s10389-021-01576-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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22
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Reddy KD, Rutting S, Tonga K, Xenaki D, Simpson JL, McDonald VM, Plit M, Malouf M, Zakarya R, Oliver BG. Sexually dimorphic production of interleukin-6 in respiratory disease. Physiol Rep 2021; 8:e14459. [PMID: 32472750 PMCID: PMC7260763 DOI: 10.14814/phy2.14459] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2020] [Revised: 04/30/2020] [Accepted: 05/03/2020] [Indexed: 12/27/2022] Open
Abstract
Diverging susceptibility and severity in respiratory diseases is prevalent between males and females. Sex hormones have inconclusively been attributed as the cause of these differences, however, strong evidence exists promoting genetic factors leading to sexual dimorphism. As such, we investigate differential proinflammatory cytokine (interleukin (IL)‐6 and CXCL8) release from TNF‐α stimulated primary human lung fibroblasts in vitro. We present, for the first time, in vitro evidence supporting clinical findings of differential production of IL‐6 between males and females across various respiratory diseases. IL‐6 was found to be produced approximately two times more from fibroblasts derived from females compared to males. As such we demonstrate sexual dimorphism in cytokine production of IL‐6 outside the context of biological factors in the human body. As such, our data highlight that differences exist between males and females in the absence of sex hormones. We, for the first time, demonstrate inherent in vitro differences exist between males and females in pulmonary fibroblasts.
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Affiliation(s)
- Karosham D Reddy
- School of Life Sciences, University of Technology Sydney, Sydney, NSW, Australia.,Respiratory Cellular and Molecular Biology, Woolcock Institute of Medical Research, University of Sydney, Sydney, NSW, Australia
| | - Sandra Rutting
- Respiratory Cellular and Molecular Biology, Woolcock Institute of Medical Research, University of Sydney, Sydney, NSW, Australia
| | - Katrina Tonga
- Respiratory Cellular and Molecular Biology, Woolcock Institute of Medical Research, University of Sydney, Sydney, NSW, Australia.,St Vincent's Hospital Sydney and St Vincent's Clinical School, University of New South Wales, Darlinghurst, NSW, Australia
| | - Dikaia Xenaki
- Respiratory Cellular and Molecular Biology, Woolcock Institute of Medical Research, University of Sydney, Sydney, NSW, Australia
| | - Jodie L Simpson
- Priority Research Centre for Healthy Lungs, Faculty of Health and Medicine, University of Newcastle, Callaghan, NSW, Australia
| | - Vanessa M McDonald
- Priority Research Centre for Healthy Lungs, Faculty of Health and Medicine, University of Newcastle, Callaghan, NSW, Australia
| | - Marshall Plit
- St Vincent's Hospital Sydney and St Vincent's Clinical School, University of New South Wales, Darlinghurst, NSW, Australia
| | - Monique Malouf
- St Vincent's Hospital Sydney and St Vincent's Clinical School, University of New South Wales, Darlinghurst, NSW, Australia
| | - Razia Zakarya
- School of Life Sciences, University of Technology Sydney, Sydney, NSW, Australia.,Respiratory Cellular and Molecular Biology, Woolcock Institute of Medical Research, University of Sydney, Sydney, NSW, Australia
| | - Brian G Oliver
- School of Life Sciences, University of Technology Sydney, Sydney, NSW, Australia.,Respiratory Cellular and Molecular Biology, Woolcock Institute of Medical Research, University of Sydney, Sydney, NSW, Australia
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23
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Almeida-da-Silva CLC, Matshik Dakafay H, O'Brien K, Montierth D, Xiao N, Ojcius DM. Effects of electronic cigarette aerosol exposure on oral and systemic health. Biomed J 2021; 44:252-259. [PMID: 33039378 PMCID: PMC8358192 DOI: 10.1016/j.bj.2020.07.003] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2020] [Revised: 06/19/2020] [Accepted: 07/21/2020] [Indexed: 12/27/2022] Open
Abstract
Conventional cigarette smoke harms nearly every organ of the body and is the leading cause of death in the United States and in the world. Decades of research have associated conventional cigarette smoke with several diseases and death. Heavily marketed, electronic nicotine delivery systems such as electronic cigarettes (e-cigarettes) are available in a variety of flavors and high nicotine concentrations. In 2019, a severe lung disease outbreak linked to e-cigarette use led to several deaths, which was called electronic-cigarette or vaping product use-associated lung injury (EVALI). Even though the trend of e-cigarette use among teens continues to increase, information on the effects of e-cigarette smoke on oral and overall health are still scarce. This review discusses the possible health effects due to unregulated e-cigarette use, as well as the health effects of second-hand smoke and third-hand smoke on non-smokers.
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Affiliation(s)
| | - Harmony Matshik Dakafay
- Department of Biomedical Sciences, University of the Pacific, Arthur Dugoni School of Dentistry, San Francisco, CA, USA
| | - Kenji O'Brien
- Dental Surgery Program, University of the Pacific, Arthur Dugoni School of Dentistry, San Francisco, CA, USA
| | - Dallin Montierth
- Dental Surgery Program, University of the Pacific, Arthur Dugoni School of Dentistry, San Francisco, CA, USA
| | - Nan Xiao
- Department of Biomedical Sciences, University of the Pacific, Arthur Dugoni School of Dentistry, San Francisco, CA, USA
| | - David M Ojcius
- Department of Biomedical Sciences, University of the Pacific, Arthur Dugoni School of Dentistry, San Francisco, CA, USA.
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24
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Bhat TA, Kalathil SG, Bogner PN, Lehmann PV, Thatcher TH, Sime PJ, Thanavala Y. AT-RvD1 Mitigates Secondhand Smoke-Exacerbated Pulmonary Inflammation and Restores Secondhand Smoke-Suppressed Antibacterial Immunity. THE JOURNAL OF IMMUNOLOGY 2021; 206:1348-1360. [PMID: 33558371 DOI: 10.4049/jimmunol.2001228] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Accepted: 01/09/2021] [Indexed: 02/07/2023]
Abstract
Cigarette smoke is a potent proinflammatory trigger contributing to acute lung injury and the development of chronic lung diseases via mechanisms that include the impairment of inflammation resolution. We have previously demonstrated that secondhand smoke (SHS) exposure exacerbates bacterial infection-induced pulmonary inflammation and suppresses immune responses. It is now recognized that resolution of inflammation is a bioactive process mediated by lipid-derived specialized proresolving mediators that counterregulate proinflammatory signaling and promote resolution pathways. We therefore hypothesized that proresolving mediators could reduce the burden of inflammation due to chronic lung infection following SHS exposure and restore normal immune responses to respiratory pathogens. To address this question, we exposed mice to SHS followed by chronic infection with nontypeable Haemophilus influenzae (NTHI). Some groups of mice were treated with aspirin-triggered resolvin D1 (AT-RvD1) during the latter half of the smoke exposure period or during a period of smoking cessation and before infection. Treatment with AT-RvD1 markedly reduced the recruitment of neutrophils, macrophages, and T cells in lung tissue and bronchoalveolar lavage and levels of proinflammatory cytokines in the bronchoalveolar lavage. Additionally, treatment with AT-RvD1 improved Ab titers against the NTHI outer membrane lipoprotein Ag P6 following infection. Furthermore, treatment with AT-RvD1 prior to classically adjuvanted immunization with P6 increased Ag-specific Ab titers, resulting in rapid clearance of NTHI from the lungs after acute challenge. Collectively, we have demonstrated that AT-RvD1 potently reverses the detrimental effects of SHS on pulmonary inflammation and immunity and thus could be beneficial in reducing lung injury associated with smoke exposure and infection.
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Affiliation(s)
- Tariq A Bhat
- Department of Immunology, Roswell Park Cancer Institute, Buffalo, NY 14263
| | | | - Paul N Bogner
- Department of Pathology, Roswell Park Cancer Institute, Buffalo, NY 14263
| | | | - Thomas H Thatcher
- Department of Medicine, University of Rochester, Rochester, NY 14620; and.,Department of Environmental Medicine, University of Rochester, Rochester, NY 14620
| | - Patricia J Sime
- Department of Medicine, University of Rochester, Rochester, NY 14620; and.,Department of Environmental Medicine, University of Rochester, Rochester, NY 14620
| | - Yasmin Thanavala
- Department of Immunology, Roswell Park Cancer Institute, Buffalo, NY 14263;
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25
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Ahmed A, Sayed AH, Elkholy J, Elshal S, Badwy A, Abdelhamid B, Ollaek M. Intraoperative MgSO 4 infusion protects oxygenation and lung mechanics in COPD patients during general anesthesia. A randomized clinical trial. Acta Anaesthesiol Scand 2020; 64:1460-1468. [PMID: 32770840 DOI: 10.1111/aas.13684] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2020] [Revised: 06/21/2020] [Accepted: 07/20/2020] [Indexed: 01/19/2023]
Abstract
BACKGROUND The purpose of this study was to examine the effects of an intraoperative MgSO4 infusion on arterial oxygenation and lung mechanics in patients with moderate COPD undergoing cancer larynx surgery under general anesthesia (GA). Our primary outcome was arterial oxygenation determined by the PaO2 and PaO2 /FiO2 . The secondary outcomes were lung mechanics (peak airway pressure, airway plateau pressure, dead space, lung compliance, airway resistance) and postoperative complications. METHODS In this randomized controlled double-blinded trial, 40 patients with an ASA classifications II and/or III who were diagnosed with moderate COPD and who were scheduled for cancer larynx surgery under GA were randomly allocated into two equal groups, the target (Mg group) and control group (C group). In the Mg group, 30 mg/kg of 10% MgSO4 solution was administered intravenously for over 20 minutes as the loading dose, followed by the continuous infusion of 10 mg/kg/hr In the C group, the same loading and maintenance infusion rates were administered using 0.9% saline. RESULTS Unlike the C group (baseline "T0" to post-infusion "T1" interval 294 ± 97 vs 238 ± 71 mm Hg, respectively, P = .04 ± SD), the Mg group exhibited preserved intraoperative PaO2 (T0 to T1 interval 271 ± 89 vs 257 ± 53 mm Hg, respectively, P = .54 ± SD) and PaO2 /FiO2 (C group T0 to T1 interval 404 ± 81 vs 349 ± 84, P = .04 and Mg group 394 ± 91 vs 379 ± 95, P = .61, respectively), and these effects were modest. Further, compared to the C group, the Mg group exhibited lower airway resistance, dead space, airway plateau pressure, and peak airway pressure, and higher dynamic compliance. The postoperative PaO2 and PaO2 /FiO2 were higher in the Mg group compared to the C group. CONCLUSIONS Intraoperative infusion of MgSO4 in patients with moderate COPD undergoing laryngectomy surgery under GA produces mild perioperative protective effects on both arterial oxygenation and lung mechanics. TRIAL REGISTRATION ClinicalTrials.gov identifier: NCT03461328; registration date: 8 March 2018.
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Affiliation(s)
- Abeer Ahmed
- Department of Anesthesiology Surgical ICU and Pain Management Kasr Alainy Faculty of Medicine Cairo University Cairo Egypt
| | - Ahmed H. Sayed
- Department of Anesthesiology Surgical ICU and Pain Management Kasr Alainy Faculty of Medicine Cairo University Cairo Egypt
| | - Jehan Elkholy
- Department of Anesthesiology Surgical ICU and Pain Management Kasr Alainy Faculty of Medicine Cairo University Cairo Egypt
| | - Sahar Elshal
- Department of Anesthesiology Surgical ICU and Pain Management Kasr Alainy Faculty of Medicine Cairo University Cairo Egypt
| | - Abdelrahman Badwy
- Department of Otorhinolaryngology Kasr Alainy Faculty of Medicine Cairo University Cairo Egypt
| | - Bassant Abdelhamid
- Department of Anesthesiology Surgical ICU and Pain Management Kasr Alainy Faculty of Medicine Cairo University Cairo Egypt
| | - Mohamed Ollaek
- Department of Anesthesiology Surgical ICU and Pain Management Kasr Alainy Faculty of Medicine Cairo University Cairo Egypt
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26
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Bhat TA, Kalathil SG, Miller A, Thatcher TH, Sime PJ, Thanavala Y. Specialized Proresolving Mediators Overcome Immune Suppression Induced by Exposure to Secondhand Smoke. THE JOURNAL OF IMMUNOLOGY 2020; 205:3205-3217. [PMID: 33115852 DOI: 10.4049/jimmunol.2000711] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Received: 06/12/2020] [Accepted: 10/01/2020] [Indexed: 12/17/2022]
Abstract
Tobacco smoke exposure is associated with multiple diseases including, respiratory diseases like asthma and chronic obstructive pulmonary disease. Tobacco smoke is a potent inflammatory trigger and is immunosuppressive, contributing to increased susceptibility to pulmonary infections in smokers, ex-smokers, and vulnerable populations exposed to secondhand smoke. Tobacco smoke exposure also reduces vaccine efficacy. Therefore, mitigating the immunosuppressive effects of chronic smoke exposure and improving the efficacy of vaccinations in individuals exposed to tobacco smoke, is a critical unmet clinical problem. We hypothesized that specialized proresolving mediators (SPMs), a class of immune regulators promoting resolution of inflammation, without being immunosuppressive, and enhancing B cell Ab responses, could reverse the immunosuppressive effects resulting from tobacco smoke exposure. We exposed mice to secondhand smoke for 8 wk, followed by a period of smoke exposure cessation, and the mice were immunized with the P6 lipoprotein from nontypeable Haemophilus influenzae, using 17-HDHA and aspirin-triggered-resolvin D1 (AT-RvD1) as adjuvants. 17-HDHA and AT-RvD1 used as adjuvants resulted in elevated serum and bronchoalveolar lavage levels of anti-P6-specific IgG and IgA that were protective, with immunized mice exhibiting more rapid bacterial clearance upon challenge, reduced pulmonary immune cell infiltrates, reduced production of proinflammatory cytokines, and less lung-epithelial cell damage. Furthermore, the treatment of mice with AT-RvD1 during a period of smoke-cessation further enhanced the efficacy of SPM-adjuvanted P6 vaccination. Overall, SPMs show promise as novel vaccine adjuvants with the ability to overcome the tobacco smoke-induced immunosuppressive effects.
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Affiliation(s)
- Tariq A Bhat
- Department of Immunology, Roswell Park Comprehensive Cancer Center, Buffalo, NY 14263
| | - Suresh Gopi Kalathil
- Department of Immunology, Roswell Park Comprehensive Cancer Center, Buffalo, NY 14263
| | - Austin Miller
- Department of Biostatistics, Roswell Park Comprehensive Cancer Center, Buffalo, NY 14263
| | - Thomas H Thatcher
- Department of Medicine, University of Rochester, Rochester, NY 14620; and.,Department of Environmental Medicine, University of Rochester, Rochester, NY 14620
| | - Patricia J Sime
- Department of Medicine, University of Rochester, Rochester, NY 14620; and.,Department of Environmental Medicine, University of Rochester, Rochester, NY 14620
| | - Yasmin Thanavala
- Department of Immunology, Roswell Park Comprehensive Cancer Center, Buffalo, NY 14263;
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27
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Reddy KD, Oliver BGG. Sex-specific effects of in utero and adult tobacco smoke exposure. Am J Physiol Lung Cell Mol Physiol 2020; 320:L63-L72. [PMID: 33084360 DOI: 10.1152/ajplung.00273.2020] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Tobacco smoke has harmful effects on a multiorgan level. Exposure to smoke, whether in utero or environmental, significantly increases susceptibility. This susceptibility has been identified to be divergent between males and females. However, there remains a distinct lack of thorough research into the relationship between sex and exposure to tobacco. Females tend to generate a more significant response than males during adulthood exposure. The intrauterine environment is meticulously controlled, and exposure to tobacco presents a significant factor that contributes to poor health outcomes and susceptibility later in life. Analysis of these effects in relation to the sex of the offspring is yet to be holistically reviewed and summarized. In this review, we will delineate the time-dependent relationship between tobacco smoke exposure and sex-specific disease susceptibility. We further outline possible biological mechanisms that may contribute to the identified pattern.
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Affiliation(s)
- Karosham D Reddy
- School of Life Sciences, University of Technology Sydney, Sydney, New South Wales, Australia.,Respiratory Cellular and Molecular Biology, Woolcock Institute of Medical Research, University of Sydney, Sydney, New South Wales, Australia
| | - Brian G G Oliver
- School of Life Sciences, University of Technology Sydney, Sydney, New South Wales, Australia.,Respiratory Cellular and Molecular Biology, Woolcock Institute of Medical Research, University of Sydney, Sydney, New South Wales, Australia
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28
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29
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Isaac A, Nehemiah HK, Isaac A, Kannan A. Computer-Aided Diagnosis system for diagnosis of pulmonary emphysema using bio-inspired algorithms. Comput Biol Med 2020; 124:103940. [PMID: 32858484 DOI: 10.1016/j.compbiomed.2020.103940] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2020] [Revised: 07/26/2020] [Accepted: 07/26/2020] [Indexed: 02/06/2023]
Abstract
Pulmonary emphysema is a condition characterized by the destruction and permanent enlargement of the alveoli of the lungs. The destruction of gas-exchanging alveoli causes shortness of breath followed by a chronic cough and sputum production. A Computer-Aided Diagnosis (CAD) framework for diagnosing pulmonary emphysema from chest Computed Tomography (CT) slices has been designed and implemented in this study. The process of implementing the CAD framework includes segmenting the lung tissues and extracting the regions of interest (ROIs) using the Spatial Intuitionistic Fuzzy C-Means clustering algorithm. The ROIs that were considered in this work were emphysematous lesions - namely, centrilobular, paraseptal, and bullae that were labelled by an expert radiologist. The shape, texture, and run-length features were extracted from each ROI. A wrapper approach that employed four bio-inspired algorithms - namely, Moth-Flame Optimization (MFO), Firefly Optimization (FFO), Artificial Bee Colony Optimization, and Ant Colony Optimization - with the accuracy of the support vector machine classifier as the fitness function was used to select the optimal feature subset. The selected features of each bio-inspired algorithm were trained independently using the Extreme Learning Machine classifier based on the tenfold cross-validation technique. The framework was tested on real-time and public emphysema datasets to perform binary classification of lung CT slices of patients with and without the presence of emphysema. The framework that used MFO and FFO for feature selection produced superior results regarding accuracy, precision, recall, and specificity for the real-time dataset and the public dataset, respectively, when compared to the other bio-inspired algorithms.
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Affiliation(s)
- Anisha Isaac
- Ramanujan Computing Centre, Anna University, Chennai, 600025, TN, India
| | - H Khanna Nehemiah
- Ramanujan Computing Centre, Anna University, Chennai, 600025, TN, India.
| | - Anubha Isaac
- Department of Computer Science and Engineering, Anna University, Chennai, 600025, TN, India
| | - A Kannan
- Department of Information Science and Technology, Anna University, Chennai, 600025, TN, India
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30
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Halappanavar S, van den Brule S, Nymark P, Gaté L, Seidel C, Valentino S, Zhernovkov V, Høgh Danielsen P, De Vizcaya A, Wolff H, Stöger T, Boyadziev A, Poulsen SS, Sørli JB, Vogel U. Adverse outcome pathways as a tool for the design of testing strategies to support the safety assessment of emerging advanced materials at the nanoscale. Part Fibre Toxicol 2020; 17:16. [PMID: 32450889 PMCID: PMC7249325 DOI: 10.1186/s12989-020-00344-4] [Citation(s) in RCA: 118] [Impact Index Per Article: 29.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2020] [Accepted: 04/02/2020] [Indexed: 12/11/2022] Open
Abstract
Toxicity testing and regulation of advanced materials at the nanoscale, i.e. nanosafety, is challenged by the growing number of nanomaterials and their property variants requiring assessment for potential human health impacts. The existing animal-reliant toxicity testing tools are onerous in terms of time and resources and are less and less in line with the international effort to reduce animal experiments. Thus, there is a need for faster, cheaper, sensitive and effective animal alternatives that are supported by mechanistic evidence. More importantly, there is an urgency for developing alternative testing strategies that help justify the strategic prioritization of testing or targeting the most apparent adverse outcomes, selection of specific endpoints and assays and identifying nanomaterials of high concern. The Adverse Outcome Pathway (AOP) framework is a systematic process that uses the available mechanistic information concerning a toxicological response and describes causal or mechanistic linkages between a molecular initiating event, a series of intermediate key events and the adverse outcome. The AOP framework provides pragmatic insights to promote the development of alternative testing strategies. This review will detail a brief overview of the AOP framework and its application to nanotoxicology, tools for developing AOPs and the role of toxicogenomics, and summarize various AOPs of relevance to inhalation toxicity of nanomaterials that are currently under various stages of development. The review also presents a network of AOPs derived from connecting all AOPs, which shows that several adverse outcomes induced by nanomaterials originate from a molecular initiating event that describes the interaction of nanomaterials with lung cells and involve similar intermediate key events. Finally, using the example of an established AOP for lung fibrosis, the review will discuss various in vitro tests available for assessing lung fibrosis and how the information can be used to support a tiered testing strategy for lung fibrosis. The AOPs and AOP network enable deeper understanding of mechanisms involved in inhalation toxicity of nanomaterials and provide a strategy for the development of alternative test methods for hazard and risk assessment of nanomaterials.
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Affiliation(s)
- Sabina Halappanavar
- Environmental Health Science and Research Bureau, Health Canada, Ottawa, Ontario, Canada.
| | - Sybille van den Brule
- Louvain centre for Toxicology and Applied Pharmacology, Institut de Recherche Expérimentale et Clinique, Université catholique de Louvain, Brussels, Belgium
| | - Penny Nymark
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
- Department of Toxicology, Misvik Biology, Turku, Finland
| | - Laurent Gaté
- Institut National de Recherche et de Sécurité, Vandoeuvre-lès-Nancy, France
| | - Carole Seidel
- Institut National de Recherche et de Sécurité, Vandoeuvre-lès-Nancy, France
| | - Sarah Valentino
- Institut National de Recherche et de Sécurité, Vandoeuvre-lès-Nancy, France
| | - Vadim Zhernovkov
- Systems Biology Ireland, University College Dublin, Dublin 4, Ireland
| | | | - Andrea De Vizcaya
- Departamento de Toxicologia, CINVESTAV-IPN, Ciudad de México, Mexico
- Sabbatical leave at Environmental Health Science and Research Bureau, Health Canada, Ottawa, Canada
| | - Henrik Wolff
- Finnish Institute of Occupational Health, Helsinki, Finland
| | - Tobias Stöger
- Research Center for Environmental Health (GmbH), Neuherberg, Germany
- German Center for Lung Research (DZL), Giessen, Germany
- Institute of Lung Biology and Disease, Comprehensive Pneumology Center, Helmholtz Zentrum München - German, Oberschleißheim, Germany
| | - Andrey Boyadziev
- Environmental Health Science and Research Bureau, Health Canada, Ottawa, Ontario, Canada
| | - Sarah Søs Poulsen
- National Research Centre for the Working Environment, Copenhagen Ø, Denmark
| | | | - Ulla Vogel
- National Research Centre for the Working Environment, Copenhagen Ø, Denmark.
- DTU Health Tech, Technical University of Denmark, Kgs. Lyngby, Denmark.
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31
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Dissecting the cellular specificity of smoking effects and reconstructing lineages in the human airway epithelium. Nat Commun 2020; 11:2485. [PMID: 32427931 PMCID: PMC7237663 DOI: 10.1038/s41467-020-16239-z] [Citation(s) in RCA: 135] [Impact Index Per Article: 33.8] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2019] [Accepted: 04/08/2020] [Indexed: 12/19/2022] Open
Abstract
Cigarette smoke first interacts with the lung through the cellularly diverse airway epithelium and goes on to drive development of most chronic lung diseases. Here, through single cell RNA-sequencing analysis of the tracheal epithelium from smokers and non-smokers, we generate a comprehensive atlas of epithelial cell types and states, connect these into lineages, and define cell-specific responses to smoking. Our analysis infers multi-state lineages that develop into surface mucus secretory and ciliated cells and then contrasts these to the unique specification of submucosal gland (SMG) cells. Accompanying knockout studies reveal that tuft-like cells are the likely progenitor of both pulmonary neuroendocrine cells and CFTR-rich ionocytes. Our smoking analysis finds that all cell types, including protected stem and SMG populations, are affected by smoking through both pan-epithelial smoking response networks and hundreds of cell-specific response genes, redefining the penetrance and cellular specificity of smoking effects on the human airway epithelium.
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32
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Hasan F, Khachatryan L, Lomnicki S. Comparative Studies of Environmentally Persistent Free Radicals on Total Particulate Matter Collected from Electronic and Tobacco Cigarettes. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2020; 54:5710-5718. [PMID: 32267684 DOI: 10.1021/acs.est.0c00351] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
In the current study, electron paramagnetic resonance (EPR) spectroscopy was employed to measure environmentally persistent free radicals (EPFRs) in the total particulate matter (TPM) of mainstream and sidestream TPM of conventional cigarettes and the TPM of e-cigarettes. Comparable concentrations of EPFRs were detected in both sidestream (8.05 ± 1.32) × 104 pmol/g and mainstream TPM (7.41 ± 0.85) × 104 pmol/g of conventional cigarettes. TPM exposure to air resulted in long-lived oxygen centered, secondary radicals with EPR g values of 2.0041 for mainstream and 2.0044 for sidestream. Surprisingly, despite no combustion process, the TPM from e-cigarettes (menthol flavor of NJOY and V2 brands) also contain EPFRs with g values of 2.0031-2.0033, characteristic of carbon centered radicals, while the radical signal in the vanilla flavor of V2 brand was remarkably similar to semiquinones in cigarette smoke with a higher g value (2.0063). The radical concentration in e-cigarettes was much lower as compared to tobacco TPM. Although the production of ROS generated by e-cigarettes is comparatively lower than ROS generated by conventional cigarettes, EPFRs in e-cigarettes appear to be more potent than those in tobacco TPM with respect to hydroxyl radical generation yield per unit EPFR. EPFRs in e-cigarette TPM may be a potential source of health impacts.
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Affiliation(s)
- Farhana Hasan
- Department of Environmental Sciences, Louisiana State University, Baton Rouge, Louisiana 70803, United States
| | - Lavrent Khachatryan
- Department of Chemistry, Louisiana State University, Baton Rouge, Louisiana 70803, United States
| | - Slawo Lomnicki
- Department of Environmental Sciences, Louisiana State University, Baton Rouge, Louisiana 70803, United States
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33
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Carreras G, Lugo A, Gallus S, Cortini B, Fernández E, López MJ, Soriano JB, López-Nicolás A, Semple S, Gorini G. Burden of disease attributable to second-hand smoke exposure: A systematic review. Prev Med 2019; 129:105833. [PMID: 31505203 DOI: 10.1016/j.ypmed.2019.105833] [Citation(s) in RCA: 69] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/12/2019] [Revised: 08/30/2019] [Accepted: 09/05/2019] [Indexed: 10/26/2022]
Abstract
Our aim was to provide a systematic review of studies on the burden of disease due to second-hand smoke (SHS) exposure, reviewing methods, exposure assessment, diseases causally linked to SHS, health outcomes, and estimates available to date. A literature review of studies on the burden of disease from SHS exposure, available in PubMed and SCOPUS, published 2007-2018 in English language, was carried out following the PRISMA recommendations. Overall, 588 studies were first identified, and 94 were eligible. Seventy-two studies were included in the systematic review. Most of them were based on the comparative risk assessment approach, assessing SHS exposure using mainly surveys on exposure at home/workplaces. Diseases more frequently studied were: lung cancer, ischemic heart disease, stroke, chronic obstructive pulmonary disease, asthma and breast cancer in adults; lower respiratory tract infection, otitis media, asthma, sudden infant death syndrome and low birth weight in children. The SHS exposure assessment and the reported population attributable fractions (PAF) were largely heterogeneous. As an example, the PAF from lung cancer varied between 0.6% and 20.5%. Moreover, PAF were estimated applying relative risks and SHS exposures with no consistent definitions or with different age classes. The research gap on the SHS exposure burden is shrinking. However, estimates are not yet available for a number of countries, particularly the Middle Eastern and African countries, and not all diseases with the strongest evidence of causation, such as sudden infant death syndrome, have been explored. Moreover, in some cases the applied methodology revealed relatively low quality of data.
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Affiliation(s)
- Giulia Carreras
- Oncologic Network, Prevention and Research Institute (ISPRO), via Cosimo il Vecchio 2, 50139 Florence, Italy.
| | - Alessandra Lugo
- Istituto di Ricerche Farmacologiche Mario Negri IRCCS (IRFMN), Via La Masa 19, 20156 Milan, Italy
| | - Silvano Gallus
- Istituto di Ricerche Farmacologiche Mario Negri IRCCS (IRFMN), Via La Masa 19, 20156 Milan, Italy
| | - Barbara Cortini
- Oncologic Network, Prevention and Research Institute (ISPRO), via Cosimo il Vecchio 2, 50139 Florence, Italy
| | - Esteve Fernández
- Catalan Institute of Oncology (ICO), Granvia de L'Hospitalet, 199-203, PC 08908 L'Hospitalet de Llobregat, Spain; Bellvitge Biomedical Research Institute (IDIBELL), Granvia de L'Hospitalet, 199, PC 08908 L'Hospitalet de Llobregat, Spain; Department of Clinical Sciences, Campus de Bellvitge, School of Medicine and Health Sciences, University of Barcelona, Feixa Llarga, s/n, PC 08907 L'Hospitalet de Llobregat, Spain
| | - Maria José López
- Public Health Agency of Barcelona (ASPB). Pl. Lesseps, 1, PC 08023 Barcelona, Spain; CIBER Epidemiologia y Salud Pública (CIBERESP), Av. Monforte de Lemos, 3-5, Pabellón 11, Planta 0. PC 28029, Madrid, Spain; Institut d'Investigació Biomèdica de Sant Pau (IIB Sant Pau), Sant Antoni Maria Claret, 167, PC 08025 Barcelona, Spain
| | - Joan B Soriano
- Hospital Universitario La Princesa (IISP), Diego de León, 62 1st floor, PC 28006 Madrid, Spain
| | - Angel López-Nicolás
- Polytechnic University of Cartagena (UPCT), Plaza Cronista Isidoro Valverde, s/n, PC 30202 Cartagena, Spain
| | - Sean Semple
- Faculty of Health Sciences and Sport, University of Stirling, Stirling FK9 4LA, Scotland, UK
| | - Giuseppe Gorini
- Oncologic Network, Prevention and Research Institute (ISPRO), via Cosimo il Vecchio 2, 50139 Florence, Italy
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Milne S, Mannino D, Sin DD. Asthma-COPD Overlap and Chronic Airflow Obstruction: Definitions, Management, and Unanswered Questions. THE JOURNAL OF ALLERGY AND CLINICAL IMMUNOLOGY-IN PRACTICE 2019; 8:483-495. [PMID: 31740296 DOI: 10.1016/j.jaip.2019.10.044] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 07/12/2019] [Revised: 10/03/2019] [Accepted: 10/31/2019] [Indexed: 12/17/2022]
Abstract
Asthma-chronic obstructive pulmonary disease (COPD) overlap (ACO) is a common clinical presentation of chronic airways disease in which patients show some features usually associated with asthma, and some usually associated with COPD. There is ongoing debate over whether ACO is a discrete clinical entity, or if it is part of a continuum of airways disease. Furthermore, there is considerable variation among current definitions of ACO, which makes diagnosis potentially challenging for clinicians. Treating ACO may be equally challenging because ACO is an understudied population, and the evidence base for its management comes largely from asthma and COPD studies, the relevance of which deserves careful consideration. In this review, we synthesize the various approaches to ACO diagnosis and evaluate the role of currently available diagnostic tests. We describe the potential benefits of existing asthma and COPD therapies in treating patients with ACO, and the value of a "treatable traits" approach to ACO management. Throughout the review, we highlight some of the pressing, unanswered questions surrounding ACO that are relevant to the clinical community. Ultimately, addressing these questions is necessary if we are to improve clinical outcomes for this complex and heterogeneous patient population.
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Affiliation(s)
- Stephen Milne
- Centre for Heart Lung Innovation, St Paul's Hospital and Division of Respiratory Medicine, University of British Columbia, Vancouver, BC, Canada
| | - David Mannino
- Department of Pulmonary, Critical Care, and Sleep Medicine, University of Kentucky College of Medicine, Lexington, Ky
| | - Don D Sin
- Centre for Heart Lung Innovation, St Paul's Hospital and Division of Respiratory Medicine, University of British Columbia, Vancouver, BC, Canada.
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Balamohan SM, Sawhney R, Lang DM, Cherabuddi K, Varadarajan VV, Bernard SH, Mackinnon LM, Boyce BJ, Antonelli PJ, Efron PA, Dziegielewski PT. Prophylactic antibiotics in head and neck free flap surgery: A novel protocol put to the test. Am J Otolaryngol 2019; 40:102276. [PMID: 31447185 DOI: 10.1016/j.amjoto.2019.102276] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2019] [Accepted: 08/14/2019] [Indexed: 11/30/2022]
Abstract
OBJECTIVE Recent evidence supports the use of ampicillin-sulbactam as a favored choice for antibiotic prophylaxis following head and neck free flap reconstructive surgery. However, there is a paucity of evidence guiding the optimal duration of antibiotic prophylaxis. The aim of this study is to compare the infection rates of short courses of ampicillin-sulbactam versus extended courses of various antibiotics in head and neck free flap reconstructive surgery. METHODS This is a retrospective cohort study conducted from 2012 to 2017 at a tertiary academic center on 266 consecutive patients undergoing head and neck surgery with free flap reconstruction. The primary outcome measure was the rate of any infection within 30 days of surgery. RESULTS There were 149 patients who received antibiotic prophylaxis for an extended duration of at least seven days. 117 patients received a short course of antibiotics defined as 24 h for non-radiated patients and 72 h for radiated patients. Postoperative infections occurred in 45.9% of patients, of which 92.6% occurred at surgical sites. There was no significant difference in terms of postoperative infection rate between patients receiving an extended duration of antibiotics versus a short duration (p = 0.80). This held true for subgroups of surgical site infections (p = 0.38) and distant infections (p = 0.59 for pneumonia and p = 0.76 for UTI). Risk factors for infections were identified as hypothyroidism (p = 0.047) and clean contaminated wound classification (p = 0.0002). CONCLUSION Shorter duration of ampicillin-sulbactam prophylaxis in free flap reconstruction of head and neck defects does not negatively affect postoperative infection rates. LEVEL OF EVIDENCE Level 2b.
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Affiliation(s)
| | - Raja Sawhney
- Department of Otolaryngology, University of Florida, Gainesville, FL, USA
| | - Dustin M Lang
- Department of Otolaryngology, University of Florida, Gainesville, FL, USA
| | - Kartik Cherabuddi
- Division of Infectious Disease, Department of Medicine, University of Florida, Gainesville, FL, USA
| | | | - Stewart H Bernard
- Department of Otolaryngology, University of Florida, Gainesville, FL, USA
| | - Lauren M Mackinnon
- Department of Otolaryngology, University of Florida, Gainesville, FL, USA
| | - Brian J Boyce
- Department of Otolaryngology, University of Florida, Gainesville, FL, USA
| | | | - Philip A Efron
- Department of Surgery, University of Florida, Gainesville, FL, USA
| | - Peter T Dziegielewski
- Department of Otolaryngology, University of Florida, Gainesville, FL, USA; University of Florida Health Cancer Center, Gainesville, FL, USA.
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36
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Abdool-Gaffar MS, Calligaro G, Wong ML, Smith C, Lalloo UG, Koegelenberg CFN, Dheda K, Allwood BW, Goolam-Mahomed A, van Zyl-Smit RN. Management of chronic obstructive pulmonary disease-A position statement of the South African Thoracic Society: 2019 update. J Thorac Dis 2019; 11:4408-4427. [PMID: 31903229 PMCID: PMC6940223 DOI: 10.21037/jtd.2019.10.65] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2019] [Accepted: 10/10/2019] [Indexed: 11/06/2022]
Affiliation(s)
| | - Gregory Calligaro
- Division of Pulmonology and UCT Lung Institute, Department of Medicine, Groote Schuur Hospital and University of Cape Town, Cape Town, South Africa
| | - Michelle Lianne Wong
- Division of Pulmonology, Chris Hani Baragwanath Academic Hospital and Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | - Clifford Smith
- Morningside Mediclinic, Sandton, Johannesburg, South Africa
| | - Umesh Gangaram Lalloo
- Durban University of Technology, Enhancing Care Foundation and Busamed Gateway Private Hospital, Kwa Zulu-Natal, South Africa
| | | | - Keertan Dheda
- Division of Pulmonology and UCT Lung Institute, Department of Medicine, Groote Schuur Hospital and University of Cape Town, Cape Town, South Africa
- Centre for Lung Infection and Immunity, Division of Pulmonology, Department of Medicine and UCT Lung Institute & South African MRC/UCT Centre for the Study of Antimicrobial Resistance, University of Cape Town, Cape Town, South Africa
- Faculty of Infectious and Tropical Diseases, Department of Infection Biology, London School of Hygiene and Tropical Medicine, London, UK
| | - Brian William Allwood
- Division of Pulmonology, Department of Medicine, Stellenbosch University and Tygerberg Hospital, Cape Town, South Africa
| | - Akhter Goolam-Mahomed
- Louis Pasteur Private Hospital and Mediclinic Pretoria Heart Hospital, Pretoria, South Africa
| | - Richard Nellis van Zyl-Smit
- Division of Pulmonology and UCT Lung Institute, Department of Medicine, Groote Schuur Hospital and University of Cape Town, Cape Town, South Africa
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37
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The relation of environmental tobacco smoke (ETS) to chronic bronchitis and mortality over two decades. Respir Med 2019; 154:34-39. [DOI: 10.1016/j.rmed.2019.06.006] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/23/2019] [Revised: 06/07/2019] [Accepted: 06/08/2019] [Indexed: 01/15/2023]
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Rao DM, Phan DT, Choo MJ, Weaver MR, Oberley-Deegan RE, Bowler RP, Gally F. Impact of fatty acid binding protein 5-deficiency on COPD exacerbations and cigarette smoke-induced inflammatory response to bacterial infection. Clin Transl Med 2019; 8:7. [PMID: 30877402 PMCID: PMC6420539 DOI: 10.1186/s40169-019-0227-8] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2018] [Accepted: 03/09/2019] [Indexed: 12/25/2022] Open
Abstract
BACKGROUND Although cigarette smoking (CS) is by far the most important risk factor of chronic obstructive pulmonary disease (COPD), repeated and sustained infections are clearly linked to disease pathogenesis and are responsible for acute inflammatory flares (i.e. COPD exacerbations). We have previously identified Fatty Acid Binding Protein 5 (FABP5) as an important anti-inflammatory protein in primary airway epithelial cells. RESULTS In this study we found decreased FABP5 mRNA and protein levels in peripheral blood mononuclear cells (PBMCs) of COPD patients, especially among those who reported episodes of COPD exacerbations. Using wildtype (WT) and FABP5-/- mice, we examined the effects of FABP5 on CS and infection-induced inflammatory responses. Similarly to what we saw in airway epithelial cells, infection increased FABP5 expression while CS decreased FABP5 expression in mouse lung tissues. CS-exposed and P. aeruginosa-infected FABP5-/- mice had significantly increased inflammation as shown by increased lung histopathological score, cell infiltration and inflammatory cytokine levels. Restoration of FABP5 in alveolar macrophages using a lentiviral approach attenuated the CS- and bacteria-induced pulmonary inflammation. And finally, while P. aeruginosa infection increased PPARγ activity, CS or FABP5 knockdown greatly reduced PPARγ activity. CONCLUSIONS These findings support a model in which CS-induced FABP5 inhibition contributes to increased inflammation in COPD exacerbations. It is interesting to speculate that the increased inflammation is a result of decreased PPARγ activity.
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Affiliation(s)
- Deviyani M. Rao
- Department of Biomedical Research, National Jewish Health, 1400 Jackson St., Room K827, Denver, CO 80206 USA
| | - Della T. Phan
- Department of Biomedical Research, National Jewish Health, 1400 Jackson St., Room K827, Denver, CO 80206 USA
| | - Michelle J. Choo
- Department of Biomedical Research, National Jewish Health, 1400 Jackson St., Room K827, Denver, CO 80206 USA
| | - Michael R. Weaver
- Department of Medicine, National Jewish Health, 1400 Jackson Street, Denver, CO 80206 USA
| | - Rebecca E. Oberley-Deegan
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, BCC 6.12.392, 985870 Nebraska Medical Center, Omaha, NE 68198-5870 USA
| | - Russell P. Bowler
- Department of Medicine, National Jewish Health, 1400 Jackson Street, Denver, CO 80206 USA
| | - Fabienne Gally
- Department of Biomedical Research, National Jewish Health, 1400 Jackson St., Room K827, Denver, CO 80206 USA
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39
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Ho T, Cusack RP, Chaudhary N, Satia I, Kurmi OP. Under- and over-diagnosis of COPD: a global perspective. Breathe (Sheff) 2019; 15:24-35. [PMID: 30838057 PMCID: PMC6395975 DOI: 10.1183/20734735.0346-2018] [Citation(s) in RCA: 94] [Impact Index Per Article: 18.8] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Globally, chronic obstructive pulmonary disease (COPD) is the fourth major cause of mortality and morbidity and projected to rise to third within a decade as our efforts to prevent, identify, diagnose and treat patients at a global population level have been insufficient. The European Respiratory Society and American Thoracic Society, along with the Global Initiative for Chronic Obstructive Lung Disease (GOLD) strategy document, have highlighted key pathological risk factors and suggested clinical treatment strategies in order to reduce the mortality and morbidity associated with COPD. This review focuses solely on issues related to the under- and over-diagnosis of COPD across the main geographical regions of the world and highlights some of the associated risk factors. Prevalence of COPD obtained mainly from epidemiological studies varies greatly depending on the clinical and spirometric criteria used to diagnose COPD, i.e. forced expiratory volume in 1 s to forced vital capacity ratio <0.7 or 5% below the lower limit of normal, and this subsequently affects the rates of under- and over-diagnosis. Although under-utilisation of spirometry is the major reason, additional factors such as exposure to airborne pollutants, educational level, age of patients and language barriers have been widely identified as other potential risk factors. Co-existent diseases, such as asthma, bronchiectasis, heart failure and previously treated tuberculosis, are reported to be the other determinants of under- and over-diagnosis of COPD. COPD is a major cause of morbidity and mortality, but misdiagnosis of COPD is a huge problem worldwide. Its main causes are under-utilisation of spirometry and lack of uniformity in diagnosis criteria, particularly in resource poor settings.http://ow.ly/KfP330nonkh
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Affiliation(s)
- Terence Ho
- Firestone Institute of Respiratory Health, Division of Respirology, Dept of Medicine, McMaster University, Hamilton, ON, Canada.,All authors contributed equally
| | - Ruth P Cusack
- Division of Respirology, Dept of Medicine, McMaster University, Hamilton, ON, Canada.,All authors contributed equally
| | - Nagendra Chaudhary
- Dept of Paediatrics, Universal College of Medical Sciences, Bhairahawa, Nepal.,All authors contributed equally
| | - Imran Satia
- Division of Respirology, Dept of Medicine, McMaster University, Hamilton, ON, Canada.,All authors contributed equally
| | - Om P Kurmi
- Population Health Research Institute, Division of Respirology, Dept of Medicine, McMaster University, Hamilton, ON, Canada.,All authors contributed equally
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40
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Flexeder C, Zock JP, Jarvis D, Verlato G, Olivieri M, Benke G, Abramson MJ, Sigsgaard T, Svanes C, Torén K, Nowak D, Jõgi R, Martinez-Moratalla J, Demoly P, Janson C, Gislason T, Bono R, Holm M, Franklin KA, Garcia-Aymerich J, Siroux V, Leynaert B, Dorado Arenas S, Corsico AG, Pereira-Vega A, Probst-Hensch N, Urrutia Landa I, Schulz H, Heinrich J. Second-hand smoke exposure in adulthood and lower respiratory health during 20 year follow up in the European Community Respiratory Health Survey. Respir Res 2019; 20:33. [PMID: 30764884 PMCID: PMC6376659 DOI: 10.1186/s12931-019-0996-z] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2018] [Accepted: 02/04/2019] [Indexed: 11/11/2022] Open
Abstract
BACKGROUND Early life exposure to tobacco smoke has been extensively studied but the role of second-hand smoke (SHS) for new-onset respiratory symptoms and lung function decline in adulthood has not been widely investigated in longitudinal studies. Our aim is to investigate the associations of exposure to SHS in adults with respiratory symptoms, respiratory conditions and lung function over 20 years. METHODS We used information from 3011 adults from 26 centres in 12 countries who participated in the European Community Respiratory Health Surveys I-III and were never or former smokers at all three surveys. Associations of SHS exposure with respiratory health (asthma symptom score, asthma, chronic bronchitis, COPD) were analysed using generalised linear mixed-effects models adjusted for confounding factors (including sex, age, smoking status, socioeconomic status and allergic sensitisation). Linear mixed-effects models with additional adjustment for height were used to assess the relationships between SHS exposure and lung function levels and decline. RESULTS Reported exposure to SHS decreased in all 26 study centres over time. The prevalence of SHS exposure was 38.7% at baseline (1990-1994) and 7.1% after the 20-year follow-up (2008-2011). On average 2.4% of the study participants were not exposed at the first, but were exposed at the third examination. An increase in SHS exposure over time was associated with doctor-diagnosed asthma (odds ratio (OR): 2.7; 95% confidence interval (95%-CI): 1.2-5.9), chronic bronchitis (OR: 4.8; 95%-CI: 1.6-15.0), asthma symptom score (count ratio (CR): 1.9; 95%-CI: 1.2-2.9) and dyspnoea (OR: 2.7; 95%-CI: 1.1-6.7) compared to never exposed to SHS. Associations between increase in SHS exposure and incidence of COPD (OR: 2.0; 95%-CI: 0.6-6.0) or lung function (β: - 49 ml; 95%-CI: -132, 35 for FEV1 and β: - 62 ml; 95%-CI: -165, 40 for FVC) were not apparent. CONCLUSION Exposure to second-hand smoke may lead to respiratory symptoms, but this is not accompanied by lung function changes.
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Affiliation(s)
- Claudia Flexeder
- Institute of Epidemiology, Helmholtz Zentrum München - German Research Center for Environmental Health, Ingolstädter Landstraße 1, 85764, Neuherberg, Germany.
| | - Jan-Paul Zock
- Barcelona Institute for Global Health (ISGlobal), Barcelona, Spain
- Universitat Pompeu Fabra (UPF), Barcelona, Spain
- CIBER Epidemiología y Salud Pública (CIBERESP), Madrid, Spain
| | - Deborah Jarvis
- MRC-PHE Centre for Environment and Health, Imperial College London, London, UK
- National Heart and Lung Institute, Imperial College London, London, UK
| | - Giuseppe Verlato
- Unit of Epidemiology and Medical Statistics, Department of Diagnostics and Public Health, University of Verona, Verona, Italy
| | | | - Geza Benke
- School of Public Health and Preventive Medicine, Monash University, Melbourne, Australia
| | - Michael J Abramson
- School of Public Health and Preventive Medicine, Monash University, Melbourne, Australia
| | | | - Cecilie Svanes
- Centre for International Health, University of Bergen, Bergen, Norway
- Department of Occupational Medicine, Haukeland University Hospital, Bergen, Norway
| | - Kjell Torén
- Department of Occupational and Environmental Medicine, Sahlgrenska University Hospital, Gothenburg, Sweden
| | - Dennis Nowak
- Institute and Outpatient Clinic for Occupational, Social and Environmental Medicine, University Hospital Munich (LMU), Munich, Germany
- Comprehensive Pneumology Center Munich (CPC-M), Member of the German Center for Lung Research (DZL), Munich, Germany
| | - Rain Jõgi
- Lung Clinic, Tartu University Clinics, Tartu, Estonia
| | - Jesús Martinez-Moratalla
- Servicio de Neumología del Complejo, Servicio de Salud de Castilla - La Mancha (SESCAM), Hospitalario Universitario de Albacete, Albacete, Spain
- Facultad de Medicina de Albacete, Universidad de Castilla - La Mancha, Albacete, Spain
| | - Pascal Demoly
- Department of Pulmonology, Division of Allergy, Hôpital Arnaud de Villeneuve, University Hospital of Montpellier, Montpellier, France
- Inserm, Sorbonne Université, Equipe EPAR - IPLESP, Paris, France
| | - Christer Janson
- Department of Medical Sciences, Respiratory, Allergy and Sleep Research, Uppsala University, Uppsala, Sweden
| | - Thorarinn Gislason
- Department of Sleep, Landspitali National University Hospital of Iceland, Reykjavik, Iceland
- Faculty of Medicine, University of Iceland, Reykjavik, Iceland
| | - Roberto Bono
- Department of Public Health and Pediatrics, University of Turin, Turin, Italy
| | - Mathias Holm
- Department of Occupational and Environmental Medicine, Sahlgrenska University Hospital, Gothenburg, Sweden
| | - Karl A Franklin
- Department of Surgical and Perioperative Sciences, Surgery, Umea University, Umea, Sweden
| | - Judith Garcia-Aymerich
- Barcelona Institute for Global Health (ISGlobal), Barcelona, Spain
- Universitat Pompeu Fabra (UPF), Barcelona, Spain
- CIBER Epidemiología y Salud Pública (CIBERESP), Madrid, Spain
| | - Valérie Siroux
- Institute for Advanced Biosciences, UGA-Inserm U1209-CNRS UMR 5309, Joint Research Center, Team of Environmental Epidemiology Applied to Reproduction and Respiratory Health, Site Santé - Allée des Alpes, 38700 La Tronche, Grenoble, France
| | - Bénédicte Leynaert
- Inserm, UMR 1152, Pathophysiology and Epidemiology of Respiratory Diseases, Paris, France, UMR 1152, University Paris Diderot Paris, Paris, France
| | | | - Angelo Guido Corsico
- Division of Respiratory Diseases, IRCCS Policlinico San Matteo Foundation, Pavia, Italy
- Department of Internal Medicine and Therapeutics, University of Pavia, Pavia, Italy
| | - Antonio Pereira-Vega
- Respiratory and Allergy Clinical Unit, Universitary Hospitalary Complex, Huelva, Spain
| | - Nicole Probst-Hensch
- Swiss Tropical and Public Health Institute, Basel, Switzerland
- Department of Public Health, University of Basel, Basel, Switzerland
| | | | - Holger Schulz
- Institute of Epidemiology, Helmholtz Zentrum München - German Research Center for Environmental Health, Ingolstädter Landstraße 1, 85764, Neuherberg, Germany
- Comprehensive Pneumology Center Munich (CPC-M), Member of the German Center for Lung Research (DZL), Munich, Germany
| | - Joachim Heinrich
- Institute of Epidemiology, Helmholtz Zentrum München - German Research Center for Environmental Health, Ingolstädter Landstraße 1, 85764, Neuherberg, Germany
- Institute and Outpatient Clinic for Occupational, Social and Environmental Medicine, University Hospital Munich (LMU), Munich, Germany
- Allergy and Lung Health Unit, Melbourne School of Population and Global Health, The University of Melbourne, Melbourne, Australia
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Thatcher TH, Woeller CF, McCarthy CE, Sime PJ. Quenching the fires: Pro-resolving mediators, air pollution, and smoking. Pharmacol Ther 2019; 197:212-224. [PMID: 30759375 DOI: 10.1016/j.pharmthera.2019.02.001] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Exposure to air pollution and other environmental inhalation hazards, such as occupational exposures to dusts and fumes, aeroallergens, and tobacco smoke, is a significant cause of chronic lung inflammation leading to respiratory disease. It is now recognized that resolution of inflammation is an active process controlled by a novel family of small lipid mediators termed "specialized pro-resolving mediators" or SPMs, derived mainly from dietary omega-3 polyunsaturated fatty acids. Chronic inflammation results from an imbalance between pro-inflammatory and pro-resolution pathways. Research is ongoing to develop SPMs, and the pro-resolution pathway more generally, as a novel therapeutic approach to diseases characterized by chronic inflammation. Here, we will review evidence that the resolution pathway is dysregulated in chronic lung inflammatory diseases, and that SPMs and related molecules have exciting therapeutic potential to reverse or prevent chronic lung inflammation, with a focus on lung inflammation due to inhalation of environmental hazards including urban particulate matter, organic dusts and tobacco smoke.
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Affiliation(s)
- Thomas H Thatcher
- Division of Pulmonary and Critical Care Medicine, University of Rochester School of Medicine and Dentistry Rochester, NY 14642, United States; Lung Biology and Disease Program, University of Rochester School of Medicine and Dentistry, Rochester, NY 14642, United States
| | - Collynn F Woeller
- Lung Biology and Disease Program, University of Rochester School of Medicine and Dentistry, Rochester, NY 14642, United States; Department of Environmental Medicine, University of Rochester School of Medicine and Dentistry, Rochester, NY 14642, United States
| | - Claire E McCarthy
- National Cancer Institute, Division of Cancer Biology, 9609 Medical Center Drive, Rockville, MD 20850, United States
| | - Patricia J Sime
- Division of Pulmonary and Critical Care Medicine, University of Rochester School of Medicine and Dentistry Rochester, NY 14642, United States; Lung Biology and Disease Program, University of Rochester School of Medicine and Dentistry, Rochester, NY 14642, United States; Department of Environmental Medicine, University of Rochester School of Medicine and Dentistry, Rochester, NY 14642, United States.
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Microbiological features of bronchial asthma and chronic obstructive pulmonary disease during remission. КЛИНИЧЕСКАЯ ПРАКТИКА 2018. [DOI: 10.17816/clinpract9440-46] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
Abstract
Background: Bronchial asthma and chronic obstructive pulmonary disease are currently the fifth leading cause of death in the world. The combination of bronchial asthma and chronic obstructive pulmonary disease seems to be a unique disease resulting from the interaction of genetic, pathological and functional factors.
Aim: Study of clinical and functional parameters, bacterial spectrum in patients with combination of asthma and chronic obstructive pulmonary diseases bronchitis and non-bronchitis types.
Methods: Clinical and functional examination of 69 patients with obstructive respiratory diseases, of which 49 patients with asthma combined with chronic obstructive pulmonary disease of bronchitis and non-bronchitis types. The microbiological spectrum of nasal pharynx induced by sputum was studied.
Results: The following microorganisms were isolated: Staphylococcus (S. aureus, S. epidermidis), Neisseria subflava, Streptococcus (α-haemolyticus, β-haemolyticus), Streptococcus pneumoniae, Pseudomonas aeruginosa, Escherichia coli, Klebsiella pneumoniae, Branhamella catarrhalis, Enterococcus, Haemophilus influenzae, Candida albicans, Aspergillus spp., Actinomyces spp., Cladosporium, Penicillium, and others.
Conclusion: A more pronounced quantitative content and a more diverse microbial landscape leads to a more severe course of the disease asthma combined withchronic obstructive pulmonary disease especially of the bronchitis type.
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Fuller-Thomson E, Howden KEN, Fuller-Thomson LR, Agbeyaka S. A Strong Graded Relationship between Level of Obesity and COPD: Findings from a National Population-Based Study of Lifelong Nonsmokers. J Obes 2018; 2018:6149263. [PMID: 30584475 PMCID: PMC6280223 DOI: 10.1155/2018/6149263] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/21/2018] [Accepted: 09/18/2018] [Indexed: 12/19/2022] Open
Abstract
Factors associated with chronic obstructive pulmonary disease (COPD) among never-smokers have received little research attention. One potential risk factor for COPD is obesity, which is of particular importance in light of the global obesity epidemic. The objective of this study was to investigate the association between COPD and levels of obesity in a nationally representative sample of non-Hispanic white never-smokers. Data were drawn from the 2012 Center for Disease Control's Behavioral Risk Factor Surveillance System (BRFSS). Pearson's chi-square tests and logistic regression analyses were conducted in a large nationally representative sample of non-Hispanic white respondents aged 50 and over (76,004 women; 37,618 men) who reported that they had never smoked. A dose-response relationship was observed for both men and women: the prevalence of COPD increased from 2.5% in men and 3.5% in women who were of a healthy weight (BMI < 25) to 7.6% in men and 13.4% in women who had a BMI of 40 or higher. Even after adjusting for 7 potential confounds (e.g., age, education, and income), the odds of COPD were 3.21 higher for men (95% CI = 2.46, 4.20) and 4.00 higher for women with class III obesity (95% CI = 3.52, 4.55) in comparison with those of healthy weight. Regular screening for COPD is warranted in never-smoking obese patients who are aged 50 and over. Future research is needed to investigate plausible mechanisms for this association, including (1) the role of chronic inflammation associated with obesity and (2) the impact of central obesity on respiratory system mechanics.
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Affiliation(s)
- Esme Fuller-Thomson
- Factor-Inwentash Faculty of Social Work and Department of Family and Community Medicine, Director, Institute of Life Course & Aging, University of Toronto, 246 Bloor Street West, Toronto, Ontario, Canada M5S 1A1
| | - Kaitlyn E. N. Howden
- McMaster University, Michael G. DeGroote School of Medicine, 1280 Main Street West, Michael DeGroote Centre for Learning and Discovery, Hamilton, Canada ON L8S 4K1
| | - Lilia R. Fuller-Thomson
- Institute of Life Course & Aging, University of Toronto, 246 Bloor St. W., Room 238, Toronto, Ontario, Canada M5S 1V4
| | - Senyo Agbeyaka
- Factor-Inwentash Faculty of Social Work and University Health Network, 246 Bloor St. W., Room 238, Toronto, Ontario, Canada M5S 1V4
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Ibrahim BA, Al-Humaish S, Al-Obaide MAI. Tobacco Smoking, Lung Cancer, and Therapy in Iraq: Current Perspective. Front Public Health 2018; 6:311. [PMID: 30416993 PMCID: PMC6212484 DOI: 10.3389/fpubh.2018.00311] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2017] [Accepted: 10/09/2018] [Indexed: 01/16/2023] Open
Abstract
Tobacco smoking is a research topic of high interest to the public health in Iraq. Although Iraq is a country with a high percentage of smokers, we noticed the dearth of adequate studies and programs to deal with this problem. The percentage of smokers exceed 30% of the population and smoking problem becomes a permanent habit in adults and young people. The problems associated with tobacco smoking behavior related to individuals' post-traumatic stress disorder following post-war conflicts, and the social and cultural environment. The health consequences of tobacco smoking can harm almost every organ in the body, and there are reports confirmed the tobacco smoking is a high-risk factor for lung cancer and other diseases. The relative risk of lung cancer increases with increasing duration and intensity of smoking. Also, smoking associated with bladder, prostate, and head and neck cancers, in addition to respiratory diseases. Intervention efforts should focus on reducing the prevalence of cigarette smoking, introduce effective treatments for cancer and quit smoking. In this perspective article, we present our viewpoint and three scenarios to deal with the problem of tobacco smoking in Iraq. We recommend introducing educational, health and legislative policies for quitting smoking and using effective treatments for cancer.
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Diver WR, Jacobs EJ, Gapstur SM. Secondhand Smoke Exposure in Childhood and Adulthood in Relation to Adult Mortality Among Never Smokers. Am J Prev Med 2018; 55:345-352. [PMID: 30122215 DOI: 10.1016/j.amepre.2018.05.005] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/17/2017] [Revised: 03/23/2018] [Accepted: 05/02/2018] [Indexed: 11/19/2022]
Abstract
INTRODUCTION Secondhand smoke is known to have adverse effects on the lung and vascular systems in both children and adults. It is unknown if childhood exposure to secondhand smoke is associated with adult mortality. METHODS The authors examined associations of childhood and adult secondhand smoke exposure with death from all causes, ischemic heart disease, stroke, and chronic obstructive pulmonary disease among 70,900 never smoking men and women, predominantly aged ≥50 years, from the Cancer Prevention Study-II Nutrition Cohort in 1992-1993. There were 25,899 participant deaths during follow-up through 2014. During 2016-2017, Cox proportional hazards regression models were used to calculate multivariable-adjusted hazard ratios and 95% CIs. RESULTS Childhood secondhand smoke exposure was not associated with all-cause mortality. However, childhood secondhand smoke (living with a smoker for 16-18 years during childhood) was associated with higher mortality from chronic obstructive pulmonary disease (hazard ratio=1.31, 95% CI=1.05, 1.65). Adult secondhand smoke exposure of ≥10 hours/week at enrollment was associated with a higher risk of all-cause (hazard ratio=1.09, 95% CI=1.04, 1.14); ischemic heart disease (hazard ratio=1.27, 95% CI=1.14, 1.42); stroke (hazard ratio=1.23, 95% CI=1.04, 1.45); and chronic obstructive pulmonary disease (hazard ratio=1.42, 95% CI=0.97, 2.09) mortality. CONCLUSIONS These results suggest that childhood secondhand smoke exposure, as well as adult secondhand smoke exposure, increase the risk of chronic obstructive pulmonary disease death in adulthood. Consistent with previous studies, the results also show that adult secondhand smoke is meaningfully associated with higher mortality from vascular disease and all causes. Overall, these findings provide further evidence for reducing secondhand smoke exposure throughout life.
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Affiliation(s)
- W Ryan Diver
- Epidemiology Research Program, American Cancer Society, Atlanta, Georgia.
| | - Eric J Jacobs
- Epidemiology Research Program, American Cancer Society, Atlanta, Georgia
| | - Susan M Gapstur
- Epidemiology Research Program, American Cancer Society, Atlanta, Georgia
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The Importance of Using Public Health Impact Criteria to Develop Environmental Health Indicators: The Example of the Indoor Environment in New Zealand. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2018; 15:ijerph15081786. [PMID: 30127284 PMCID: PMC6121674 DOI: 10.3390/ijerph15081786] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/09/2018] [Revised: 08/06/2018] [Accepted: 08/14/2018] [Indexed: 12/15/2022]
Abstract
Developing environmental health indicators is challenging and applying a conceptual framework and indicator selection criteria may not be sufficient to prioritise potential indicators to monitor. This study developed a new approach for prioritising potential environmental health indicators, using the example of the indoor environment for New Zealand. A three-stage process of scoping, selection, and design was implemented. A set of potential indicators (including 4 exposure indicators and 20 health indicators) were initially identified and evaluated against indicator selection criteria. The health indicators were then further prioritised according to their public health impact and assessed by the five following sub-criteria: number of people affected (based on environmental burden of disease statistics); severity of health impact; whether vulnerable populations were affected and/or large inequalities were apparent; whether the indicator related to multiple environmental exposures; and policy relevance. Eight core indicators were ultimately selected, as follows: living in crowded households, second-hand smoke exposure, maternal smoking at two weeks post-natal, asthma prevalence, asthma hospitalisations, lower respiratory tract infection hospitalisations, meningococcal disease notifications, and sudden unexpected death in infancy (SUDI). Additionally, indicators on living in damp and mouldy housing and children's injuries in the home, were identified as potential indicators, along with attributable burden indicators. Using public health impact criteria and an environmental burden of disease approach was valuable in prioritising and selecting the most important health impacts to monitor, using robust evidence and objective criteria.
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Bhat TA, Kalathil SG, Bogner PN, Miller A, Lehmann PV, Thatcher TH, Phipps RP, Sime PJ, Thanavala Y. Secondhand Smoke Induces Inflammation and Impairs Immunity to Respiratory Infections. THE JOURNAL OF IMMUNOLOGY 2018; 200:2927-2940. [PMID: 29555783 DOI: 10.4049/jimmunol.1701417] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2017] [Accepted: 02/16/2018] [Indexed: 12/29/2022]
Abstract
Despite advocacy to reduce smoking-related diseases, >1 billion people worldwide continue to smoke. Smoking is immunosuppressive and an important etiological factor in the development of several human disorders including respiratory diseases like chronic obstructive pulmonary disease. However, there is a critical gap in the knowledge of the role of secondhand smoke (SHS) in inflammation and immunity. We therefore studied the influence of SHS on pulmonary inflammation and immune responses to respiratory infection by nontypeable Haemophilus influenzae (NTHI) recurrently found in chronic obstructive pulmonary disease patients. Chronic SHS-exposed mice were chronically infected with NTHI and pulmonary inflammation was evaluated by histology. Immune cell numbers and cytokines were measured by flow cytometry and ELISA, respectively. Chronic SHS exposure impaired NTHI P6 Ag-specific B and T cell responses following chronic NTHI infection as measured by ELISPOT assays, reduced the production of Abs in serum and bronchoalveolar lavage, and enhanced albumin leak into the bronchoalveolar lavage as determined by ELISA. Histopathological examination of lungs revealed lymphocytic accumulation surrounding airways and bronchovasculature following chronic SHS exposure and chronic infection. Chronic SHS exposure enhanced the levels of inflammatory cytokines IL-17A, IL-6, IL-1β, and TNF-α in the lungs, and impaired the generation of adaptive immunity following either chronic infection or P6 vaccination. Chronic SHS exposure diminished bacterial clearance from the lungs after acute NTHI challenge, whereas P6 vaccination improved clearance equivalent to the level seen in air-exposed, non-vaccinated mice. Our study provides unequivocal evidence that SHS exposure has long-term detrimental effects on the pulmonary inflammatory microenvironment and immunity to infection and vaccination.
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Affiliation(s)
- Tariq A Bhat
- Department of Immunology, Roswell Park Cancer Institute, Buffalo, NY 14263
| | | | - Paul N Bogner
- Department of Pathology, Roswell Park Cancer Institute, Buffalo, NY 14263
| | - Austin Miller
- Department of Biostatistics, Roswell Park Cancer Institute, Buffalo, NY 14263
| | | | - Thomas H Thatcher
- Department of Medicine, University of Rochester, Rochester, NY 14620; and
| | - Richard P Phipps
- Department of Medicine, University of Rochester, Rochester, NY 14620; and.,Department of Environmental Medicine, University of Rochester, Rochester, NY 14620
| | - Patricia J Sime
- Department of Medicine, University of Rochester, Rochester, NY 14620; and.,Department of Environmental Medicine, University of Rochester, Rochester, NY 14620
| | - Yasmin Thanavala
- Department of Immunology, Roswell Park Cancer Institute, Buffalo, NY 14263;
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Lee PN, Forey BA, Coombs KJ, Hamling JS, Thornton AJ. Epidemiological evidence relating environmental smoke to COPD in lifelong non-smokers: a systematic review. F1000Res 2018. [PMID: 32089819 DOI: 10.12688/f1000research.13887.1] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
Background: Some evidence suggests environmental tobacco smoke (ETS) might cause chronic obstructive pulmonary disease (COPD). We reviewed available epidemiological data in never smokers. Methods: We identified epidemiological studies providing estimates of relative risk (RR) with 95% confidence interval (CI) for various ETS exposure indices. Confounder-adjusted RRs for COPD were extracted, or derived using standard methods. Meta-analyses were conducted for each exposure index, with tests for heterogeneity and publication bias. For the main index (spouse ever smoked or nearest equivalent), analyses investigated variation in RR by location, publication period, study type, sex, diagnosis, study size, confounder adjustment, never smoker definition, and exposure index definition. Results: Twenty-eight relevant studies were identified; nine European or Middle Eastern, nine Asian, eight American and two from multiple countries. Five were prospective, seven case-control and 16 cross-sectional. The COPD definition involved death or hospitalisation in seven studies, GOLD stage 1+ criteria in twelve, and other definitions in nine. For the main index, random-effects meta-analysis of 33 heterogeneous (p<0.001) estimates gave a RR of 1.20 (95%CI 1.08-1.34). Higher estimates for females (1.59,1.16-2.19, n=11) than males (1.29,0.94-1.76, n=7) or sexes combined (1.10,0.99-1.22, n=15 where sex-specific not available), and lower estimates for studies of 150+ cases (1.08,0.97-1.20, n=13) partly explained the heterogeneity. Estimates were higher for Asian studies (1.34,1.08-1.67, n=10), case-control studies (1.55,1.04-2.32, n=8), and COPD mortality or hospitalisation (1.40,1.12-1.74, n=11). Some increase was seen for severer COPD (1.29,1.10-1.52, n=7). Dose-response evidence was heterogeneous. Evidence for childhood (0.88,0.72-1.07, n=2) and workplace (1.12,0.77-1.64, n=4) exposure was limited, but an increase was seen for overall adulthood exposure (1.20,1.03-1.39, n=17). We discuss study weaknesses that may bias estimation of the association of COPD with ETS. Conclusions: Although the evidence suggests ETS increases COPD, study weaknesses and absence of well-designed large studies precludes reliable inference of causality. More definitive evidence is required.
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Affiliation(s)
- Peter N Lee
- P.N. Lee Statistics and Computing Ltd, Sutton, Surrey, SM2 5DA, UK
| | - Barbara A Forey
- P.N. Lee Statistics and Computing Ltd, Sutton, Surrey, SM2 5DA, UK
| | | | - Jan S Hamling
- P.N. Lee Statistics and Computing Ltd, Sutton, Surrey, SM2 5DA, UK
| | - Alison J Thornton
- Independent Consultant in Statistics, Okehampton, Devon, EX20 1SG, UK
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Lee PN, Forey BA, Coombs KJ, Hamling JS, Thornton AJ. Epidemiological evidence relating environmental smoke to COPD in lifelong non-smokers: a systematic review. F1000Res 2018; 7:146. [PMID: 32089819 PMCID: PMC6953425 DOI: 10.12688/f1000research.13887.3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 01/31/2018] [Indexed: 01/01/2023] Open
Abstract
Background: Some evidence suggests environmental tobacco smoke (ETS) might cause chronic obstructive pulmonary disease (COPD). We reviewed available epidemiological data in never smokers. Methods: We identified epidemiological studies providing estimates of relative risk (RR) with 95% confidence interval (CI) for various ETS exposure indices. Confounder-adjusted RRs for COPD were extracted, or derived using standard methods. Meta-analyses were conducted for each exposure index, with tests for heterogeneity and publication bias. For the main index (spouse ever smoked or nearest equivalent), analyses investigated variation in RR by location, publication period, study type, sex, diagnosis, study size, confounder adjustment, never smoker definition, and exposure index definition. Results: Twenty-eight relevant studies were identified; nine European or Middle Eastern, nine Asian, eight American and two from multiple countries. Five were prospective, seven case-control and 16 cross-sectional. The COPD definition involved death or hospitalisation in seven studies, GOLD stage 1+ criteria in twelve, and other definitions in nine. For the main index, random-effects meta-analysis of 33 heterogeneous (p<0.001) estimates gave a RR of 1.20 (95%CI 1.08-1.34). Higher estimates for females (1.59,1.16-2.19, n=11) than males (1.29,0.94-1.76, n=7) or sexes combined (1.10,0.99-1.22, n=15 where sex-specific not available), and lower estimates for studies of 150+ cases (1.08,0.97-1.20, n=13) partly explained the heterogeneity. Estimates were higher for Asian studies (1.34,1.08-1.67, n=10), case-control studies (1.55,1.04-2.32, n=8), and COPD mortality or hospitalisation (1.40,1.12-1.74, n=11). Some increase was seen for severer COPD (1.29,1.10-1.52, n=7). Dose-response evidence was heterogeneous. Evidence for childhood (0.88,0.72-1.07, n=2) and workplace (1.12,0.77-1.64, n=4) exposure was limited, but an increase was seen for overall adulthood exposure (1.20,1.03-1.39, n=17). We discuss study weaknesses that may bias estimation of the association of COPD with ETS. Conclusions: Although the evidence suggests ETS increases COPD, study weaknesses and absence of well-designed large studies precludes reliable inference of causality. More definitive evidence is required.
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Affiliation(s)
- Peter N. Lee
- P.N. Lee Statistics and Computing Ltd, Sutton, Surrey, SM2 5DA, UK
| | - Barbara A. Forey
- P.N. Lee Statistics and Computing Ltd, Sutton, Surrey, SM2 5DA, UK
| | | | - Jan S. Hamling
- P.N. Lee Statistics and Computing Ltd, Sutton, Surrey, SM2 5DA, UK
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Mahboub BH, Vats MG, Al Zaabi A, Iqbal MN, Safwat T, Al-Hurish F, Miravitlles M, Singh D, Asad K, Zeineldine S, Al-Hajjaj MS. Joint statement for the diagnosis, management, and prevention of chronic obstructive pulmonary disease for Gulf Cooperation Council countries and Middle East-North Africa region, 2017. Int J Chron Obstruct Pulmon Dis 2017; 12:2869-2890. [PMID: 29070946 PMCID: PMC5640411 DOI: 10.2147/copd.s136245] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
Smoking and subsequent development of COPD is an ever-increasing epidemic in Arabian Gulf and Middle East countries, with no signs of decline. The important fact to be highlighted is that this COPD epidemic of increasing incidence and prevalence is mostly unrecognized by patients, due to the common attribution of symptoms to "smoker's cough", and the underdiagnosis and undertreatment by physicians because the common signs and symptoms masquerade as asthma. Consequently, there are long-term adverse effects of missing the diagnosis. The purpose of this review article is to focus upon the status of COPD in Arabian Gulf and Middle East countries, stressing the increasing burden of smoking and COPD, to emphasize the specific factors leading to rise in prevalence of COPD, to bring to light the underdiagnosis and undermanagement of COPD, and to treat COPD in conformity with standard guidelines with local and regional modifications. This review ends with suggestions and recommendations to the health department to formulate policies and to generate awareness among the general public about the side effects of smoking and consequences of COPD.
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Affiliation(s)
- Bassam H Mahboub
- College of Medicine, University of Sharjah, Sharjah
- Department of Pulmonary Medicine, Rashid Hospital, Dubai Health Authority, Dubai
| | - Mayank Gian Vats
- Department of Pulmonary Medicine, Rashid Hospital, Dubai Health Authority, Dubai
| | - Ashraf Al Zaabi
- Department of Pulmonary Medicine, Zayed Military Hospital, Abu Dhabi, United Arab Emirates
| | - Mohammed Nizam Iqbal
- Department of Pulmonary Medicine, Rashid Hospital, Dubai Health Authority, Dubai
| | - Tarek Safwat
- Chest Department, Ain Shams University, Cairo, Egypt
| | - Fatma Al-Hurish
- Department of Pulmonology and Allergy, Al-Sabah Hospital, Kuwait City, Kuwait
| | - Marc Miravitlles
- Department of Pneumology, Hospital Universitari Vall d’Hebron, Barcelona, Spain
| | - Dave Singh
- Centre for Respiratory Medicine and Allergy, University of Manchester, University Hospital of South Manchester, Manchester, UK
| | - Khaled Asad
- Pulmonary and Critical Care, Istishari Hospital, Amman, Jordan
| | - Salah Zeineldine
- Faculty of Medicine
- Hariri School of Nursing, American University of Beirut, Beirut, Lebanon
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