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Berumen-Rodríguez AA, Alcántara-Quintana LE, Pérez-Vázquez FJ, Zamora-Mendoza BN, Díaz de León-Martínez L, Díaz Barriga F, Flores-Ramírez R. Assessment of inflammatory cytokines in exhaled breath condensate and exposure to mixtures of organic pollutants in brick workers. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:13270-13282. [PMID: 36129651 DOI: 10.1007/s11356-022-23071-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Accepted: 09/13/2022] [Indexed: 06/15/2023]
Abstract
Brick production causes a lot of pollution in the form of dust, fumes, and toxic substances. Therefore, brick workers are highly exposed to pollutants and present a high risk of developing respiratory diseases. The objective of this research was to determine the exposure to polycyclic aromatic hydrocarbons (PAHs) and toluene in urine and evaluate the effects on health using markers of oxidative stress in exhaled breath condensate (EBC) as well as the exposure to pollutants in suspended particles of the studied area. Exposure to PAHs and toluene was evaluated using hydroxylated markers (OH) of PAHs and hippuric acid in urine, respectively. Cytokines like TNF-α, INF-y, IL-2, IL-4, IL-6, IL-8, IL-10 y GMCSF in EBC were also evaluated. PM2.5 particles were measured during an 8-h work shift. The results in brick workers presented a total OH-PAHs concentration of 97.3 µg/L and hippuric acid concentration of 0.2 g/L. The environmental concentrations of suspended particles were found within a range of 41.67-3541.6 μg/m3. The median of cytokines oscillated between 11.8 pg/mL to 1041 pg/mL. In conclusion, these results are similar to those of occupations in which there is high exposure to pollutants and populations with lung diseases. For that reason, the brick production sector requires prevention and control strategies against the pollutants emitted.
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Affiliation(s)
- Alejandra Abigail Berumen-Rodríguez
- Centro de Investigación Aplicada en Ambiente Y Salud (CIAAS), Colonia Lomas Segunda Sección, Avenida Sierra Leona No. 550, CP, 78210, San Luis Potosí, SLP, México
| | - Luz Eugenia Alcántara-Quintana
- Unidad de Innovación en Diagnóstico Celular Y Molecular. Coordinación Para La Innovación Y La Aplicación de La Ciencia Y Tecnología, Universidad Autónoma de San Luis Potosí Av, Sierra Leona 550, Lomas 2a sección, 78120, San Luis Potosí, SLP, México
| | - Francisco Javier Pérez-Vázquez
- CONACYT Research Fellow, Coordinación Para La Innovación Y Aplicación de La Ciencia Y La Tecnología (CIACYT), Colonia Lomas Segunda Sección, Avenida Sierra Leona No. 550, CP, 78210, San Luis Potosí, SLP, México
| | - Blanca Nohemí Zamora-Mendoza
- Centro de Investigación Aplicada en Ambiente Y Salud (CIAAS), Colonia Lomas Segunda Sección, Avenida Sierra Leona No. 550, CP, 78210, San Luis Potosí, SLP, México
| | - Lorena Díaz de León-Martínez
- Centro de Investigación Aplicada en Ambiente Y Salud (CIAAS), Colonia Lomas Segunda Sección, Avenida Sierra Leona No. 550, CP, 78210, San Luis Potosí, SLP, México
| | - Fernando Díaz Barriga
- Centro de Investigación Aplicada en Ambiente Y Salud (CIAAS), Colonia Lomas Segunda Sección, Avenida Sierra Leona No. 550, CP, 78210, San Luis Potosí, SLP, México
| | - Rogelio Flores-Ramírez
- CONACYT Research Fellow, Coordinación Para La Innovación Y Aplicación de La Ciencia Y La Tecnología (CIACYT), Colonia Lomas Segunda Sección, Avenida Sierra Leona No. 550, CP, 78210, San Luis Potosí, SLP, México.
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Chow HW, Chen KL. Development of an Air Pollution Risk Perception Questionnaire for Running Race Runners Based on the Health Belief Model. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:11419. [PMID: 36141690 PMCID: PMC9517284 DOI: 10.3390/ijerph191811419] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/11/2022] [Revised: 08/12/2022] [Accepted: 09/07/2022] [Indexed: 06/16/2023]
Abstract
An increasing number of individuals participate in running races worldwide; however, running in the presence of air pollution poses health risks to runners. Therefore, developing a valid and reliable instrument is imperative to assess runners' beliefs and perceptions regarding risks and health behaviors. This study developed a comprehensive questionnaire based on the health behavior model and relevant literature. The questionnaire was tested with 310 responses from individuals with running race experiences in Taiwan. Tests of the measurement model were conducted using reliability and confirmatory factor analysis. The results reveal that the questionnaire consists of eight constructs: perceived susceptibility, perceived severity, perceived benefits, perceived barriers, perceived self-efficacy, cues to action, health behavior intention, and awareness of air quality. The 31 items jointly accounted for 72.71% of the observed variance. All eight factors have good internal consistency, convergent, and discriminant validity with acceptable model fit indexes. Additionally, a valid translated English version of the questionnaire is provided for future research, sports agencies, or governments to explore factors that affect, or interact with, risk while running under air pollution conditions to develop management strategies.
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Ghelli F, Panizzolo M, Garzaro G, Squillacioti G, Bellisario V, Colombi N, Bergamaschi E, Guseva Canu I, Bono R. Inflammatory Biomarkers in Exhaled Breath Condensate: A Systematic Review. Int J Mol Sci 2022; 23:ijms23179820. [PMID: 36077213 PMCID: PMC9456215 DOI: 10.3390/ijms23179820] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Revised: 08/21/2022] [Accepted: 08/24/2022] [Indexed: 01/08/2023] Open
Abstract
Inflammation is a comprehensive set of physiological processes that an organism undertakes in response to a wide variety of foreign stimuli, such as viruses, bacteria, and inorganic particles. A key role is played by cytokines, protein-based chemical mediators produced by a broad range of cells, including the immune cells recruited in the inflammation site. The aim of this systematic review is to compare baseline values of pro/anti-inflammatory biomarkers measured in Exhaled Breath Condensate (EBC) in healthy, non-smoking adults to provide a summary of the concentrations reported in the literature. We focused on: interleukin (IL)-1β, IL-4, IL-6, IL-8, IL-10, tumour necrosis factor-alpha (TNF-α), and C reactive protein (CRP). Eligible articles were identified in PubMed, Embase, and Cochrane CENTRAL. Due to the wide differences in methodologies employed in the included articles concerning EBC sampling, storage, and analyses, research protocols were assessed specifically to test their adherence to the ATS/ERS Task Force guidelines on EBC. The development of reference intervals for these biomarkers can result in their introduction and use in both research and clinical settings, not only for monitoring purposes but also, in the perspective of future longitudinal studies, as predictive parameters for the onset and development of chronic diseases with inflammatory aetiology.
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Affiliation(s)
- Federica Ghelli
- Department of Public Health and Pediatrics, University of Turin, 10126 Turin, Italy
| | - Marco Panizzolo
- Department of Public Health and Pediatrics, University of Turin, 10126 Turin, Italy
| | - Giacomo Garzaro
- Department of Public Health and Pediatrics, University of Turin, 10126 Turin, Italy
| | - Giulia Squillacioti
- Department of Public Health and Pediatrics, University of Turin, 10126 Turin, Italy
| | - Valeria Bellisario
- Department of Public Health and Pediatrics, University of Turin, 10126 Turin, Italy
| | - Nicoletta Colombi
- Federated Library of Medicine “F. Rossi”, University of Turin, 10126 Turin, Italy
| | - Enrico Bergamaschi
- Department of Public Health and Pediatrics, University of Turin, 10126 Turin, Italy
- Correspondence:
| | - Irina Guseva Canu
- Center for Primary Care and Public Health (Unisanté), University of Lausanne, 1066 Lausanne, Switzerland
| | - Roberto Bono
- Department of Public Health and Pediatrics, University of Turin, 10126 Turin, Italy
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Díaz de León-Martínez L, Grimaldo-Galeana JM, Alcántara-Quintana LE, Díaz-Barriga F, Pérez-Vázquez FJ, Flores-Ramírez R. Evaluation of cytokines in exhaled breath condensate in an occupationally exposed population to pneumotoxic pollutants. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:59872-59884. [PMID: 35397024 DOI: 10.1007/s11356-022-20101-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Accepted: 04/01/2022] [Indexed: 06/14/2023]
Abstract
The quarrying is considered a precarious occupation with high toxicity, is an informal economic activity that employs low technology, limited protection, and poses a risk to workers and their families. In quarrying, silica dust is generated and there is also occupational exposure to significant mixtures of pneumotoxic pollutants, including mineral dust (crystalline silica, carbon or cement, polycyclic aromatic hydrocarbons (PAHs), solvents, and others, which are aggravated by the lack of use of protective equipment, causing irreversible damage to the worker's respiratory health. Thus, the objective of this work focused on the evaluation of the respiratory health of artisan stonemasons in San Luis Potosí, Mexico through the study of exhaled breath condensate (EBC) (pH, pro-inflammatory cytokines) as well as the study of the exposure to pollutants present in the work area (PAHs, toluene, and 2.5 µm particulate matter) through biomarkers of exposure (hippuric acid and hydroxylated metabolites of PAHs). The results show the presence of crystalline SiO2 in 100% of the samples analyzed; the PM2.5 concentrations were 5 to 10 times the permitted levels. Regarding exposure to PAHs, all the stonemasons presented urine concentrations of at least 5 of the OH-PAHs evaluated; 9-OH-FLU occurred at higher concentrations of 171.2 (122.7-279.4) µg L-1; hippuric acid, which was present in 100% of the workers evaluated in concentrations of 283.4 (27.72-1119) mg L-1, 100% of which were above the values established for occupational scenarios. The pH values obtained for the EBC samples were presented at an average of 7.07 (6.33-7.66). Pro-inflammatory cytokines were present in 86.1% of the study population. The cytokine that was found in higher concentrations was IL-2, with a mean of 178.01 pg mL-1 and 3124.01 pg mL-1 for the pH < 7 and pH > 7 groups, respectively. Some correlations between the cytokines and the exposure biomarkers were presented. Stonemasons are highly exposed to pneumotoxic pollutants and markers of inflammation at the pulmonary level; in addition, a high risk of developing silicosis. Quarrying should be addressed as a carcinogenic activity, which would imply the design of monitoring and control strategies for these pollutants that our country currently lacks, particularly in precarious occupations. It is necessary to develop strategies to protect the health of precarious workers.
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Affiliation(s)
- Lorena Díaz de León-Martínez
- Centro de Investigación Aplicada en Ambiente Y Salud (CIAAS), Avenida Sierra Leona No. 550, Colonia Lomas Segunda Sección, 78210, San Luis Potosi, CP, Mexico
| | - José Moisés Grimaldo-Galeana
- Centro de Investigación Aplicada en Ambiente Y Salud (CIAAS), Avenida Sierra Leona No. 550, Colonia Lomas Segunda Sección, 78210, San Luis Potosi, CP, Mexico
| | - Luz Eugenia Alcántara-Quintana
- Unidad de Innovación en Diagnóstico Celular Y Molecular, Coordinación Para La Innovación Y La Aplicación de La Ciencia Y Tecnología, Universidad Autónoma de San Luis Potosí, Av. Sierra Leona 550, Lomas 2a Sección, 78120, San Luis Potosi, Mexico
| | - Fernando Díaz-Barriga
- Centro de Investigación Aplicada en Ambiente Y Salud (CIAAS), Avenida Sierra Leona No. 550, Colonia Lomas Segunda Sección, 78210, San Luis Potosi, CP, Mexico
| | - Francisco Javier Pérez-Vázquez
- Coordinación Para La Innovación Y Aplicación de La Ciencia Y La Tecnología (CIACYT), Avenida Sierra Leona No. 550, Colonia Lomas Segunda Sección, 78210, San Luis Potosi, CP, Mexico
| | - Rogelio Flores-Ramírez
- Coordinación Para La Innovación Y Aplicación de La Ciencia Y La Tecnología (CIACYT), Avenida Sierra Leona No. 550, Colonia Lomas Segunda Sección, 78210, San Luis Potosi, CP, Mexico.
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Abstract
Although its first definition dates back to more than a century ago, pH and its measurement are still studied for improving the performance of current sensors in everyday analysis. The gold standard is the glass electrode, but its intrinsic fragility and need of frequent calibration are pushing the research field towards alternative sensitive devices and materials. In this review, we describe the most recent optical, electrochemical, and transistor-based sensors to provide an overview on the status of the scientific efforts towards pH sensing.
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Nrf2 positively regulates autophagy antioxidant response in human bronchial epithelial cells exposed to diesel exhaust particles. Sci Rep 2020; 10:3704. [PMID: 32111854 PMCID: PMC7048799 DOI: 10.1038/s41598-020-59930-3] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2019] [Accepted: 02/04/2020] [Indexed: 01/06/2023] Open
Abstract
Diesel exhaust particles (DEP) are known to generate reactive oxygen species in the respiratory system, triggering cells to activate antioxidant defence mechanisms, such as Keap1-Nrf2 signalling and autophagy. The aim of this study was to investigate the relationship between the Keap1-Nrf2 signalling and autophagy pathways after DEP exposure. BEAS-2B cells were transfected with silencing RNA (siRNA) specific to Nrf2 and exposed to DEP. The relative levels of mRNA for Nrf2, NQO1, HO-1, LC3B, p62 and Atg5 were determined using RT-PCR, while the levels of LCB3, Nrf2, and p62 protein were determined using Western blotting. The autophagy inhibitor bafilomycin caused a significant decrease in the production of Nrf2, HO-1 and NQO1 compared to DEPs treatment, whereas the Nrf2 activator sulforaphane increased the LC3B (p = 0.020) levels. BEAS-2B cells exposed to DEP at a concentration of 50 μg/mL for 2 h showed a significant increase in the expression of LC3B (p = 0.001), p62 (p = 0.008), Nrf2 (p = 0.003), HO-1 (p = 0.001) and NQO1 (p = 0.015) genes compared to control. In siRNA-transfected cells, the LC3B (p < 0.001), p62 (p = 0.001) and Atg5 (p = 0.024) mRNA levels and the p62 and LC3II protein levels were decreased, indicating that Nrf2 modulated the expression of autophagy markers (R < 1). These results imply that, in bronchial cells exposed to DEP, the Nrf2 system positively regulates autophagy to maintain cellular homeostasis.
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Araneda OF, Contreras-Briceño F, Cavada G, Viscor G. Swimming versus running: effects on exhaled breath condensate pro-oxidants and pH. Eur J Appl Physiol 2018; 118:2319-2329. [PMID: 30094648 DOI: 10.1007/s00421-018-3958-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2018] [Accepted: 07/31/2018] [Indexed: 10/28/2022]
Abstract
PURPOSE The respiratory redox-state of swimmers can be affected by chronic exposures to chlorinated pools, and the effects of different exercises on it are unknown. Our aim was to compare two exercises performed at high-intensity and under habitual environmental conditions (swimming indoor vs. running outdoor) on the production of pro-oxidants (hydrogen peroxide and nitrite) and pH in exhaled breath condensate (EBC) and spirometry parameters in competitive swimmers chronically exposed to chlorinated pools. METHODS Seventeen men and women (mean age ± SD = 21 ± 2 years) swam 3.5 km in an indoor pool treated with Cl2, and after 2-weeks, they ran 10 km outdoors. The pHEBC, [H2O2]EBC, [NO2-]EBC, [NO2-]EBC/[NO2-]Plasma and spirometry parameters were analyzed pre-exercise and 20 min and 24 h after exercise ended. RESULTS Two mixed models were applied to compare EBC parameters between swimming and running. Lower levels of [H2O2]EBC and [NO2-]EBC (p = 0.008 and p = 0.018, respectively) were found 24-h post-swimming, and the same trend was observed for [NO2-]EBC/[NO2-]Plasma (p = 0.062). Correlations were found in both exercises between pre-exercise levels of pHEBC, [H2O2]EBC, [NO2-]EBC, and [NO2-]EBC/[NO2-]Plasma and their changes (Δ) after 24-h as well as between [H2O2]EBC and [NO2-]EBC for basal levels and for changes after 24 h. A relationship was also found for running exercise between pulmonary ventilation and changes after 24 h in [H2O2]EBC. Spirometry data were unaffected in both types of exercise. CONCLUSION In competitive swimmers, at 24-h acute post-exercise follow-up, swimming decreased and running increased pro-oxidant biomarkers of pulmonary origin, without changes in lung function.
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Affiliation(s)
- Oscar F Araneda
- Laboratorio de Fisiología Integrativo de Biomecánica y Fisiología Integrativa (LIBFE), Escuela de Kinesiología, Facultad de Medicina, Universidad de Los Andes, Santiago, Chile.
| | - Felipe Contreras-Briceño
- Laboratory of Exercise Physiology, Department of Health of Science, Faculty of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile.,Physiology Section, Department of Cell Biology, Physiology and Immunology, Faculty of Biology, Universitat de Barcelona, Barcelona, Spain
| | - Gabriel Cavada
- School of Public Health, Faculty of Medicine, Universidad de Chile, Santiago, Chile
| | - Ginés Viscor
- Physiology Section, Department of Cell Biology, Physiology and Immunology, Faculty of Biology, Universitat de Barcelona, Barcelona, Spain
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De Grove KC, Provoost S, Brusselle GG, Joos GF, Maes T. Insights in particulate matter-induced allergic airway inflammation: Focus on the epithelium. Clin Exp Allergy 2018; 48:773-786. [PMID: 29772098 DOI: 10.1111/cea.13178] [Citation(s) in RCA: 70] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2017] [Revised: 05/02/2018] [Accepted: 05/02/2018] [Indexed: 01/01/2023]
Abstract
Outdoor air pollution is a major environmental health problem throughout the world. In particular, exposure to particulate matter (PM) has been associated with the development and exacerbation of several respiratory diseases, including asthma. Although the adverse health effects of PM have been demonstrated for many years, the underlying mechanisms have not been fully identified. In this review, we focus on the role of the lung epithelium and specifically highlight multiple cytokines in PM-induced respiratory responses. We describe the available literature on the topic including in vitro studies, findings in humans (ie observations in human cohorts, human controlled exposure and ex vivo studies) and in vivo animal studies. In brief, it has been shown that exposure to PM modulates the airway epithelium and promotes the production of several cytokines, including IL-1, IL-6, IL-8, IL-25, IL-33, TNF-α, TSLP and GM-CSF. Further, we propose that PM-induced type 2-promoting cytokines are important mediators in the acute and aggravating effects of PM on airway inflammation. Targeting these cytokines could therefore be a new approach in the treatment of asthma.
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Affiliation(s)
- K C De Grove
- Department of Respiratory Medicine, Laboratory for Translational Research in Obstructive Pulmonary Diseases, Ghent University Hospital, Ghent, Belgium
| | - S Provoost
- Department of Respiratory Medicine, Laboratory for Translational Research in Obstructive Pulmonary Diseases, Ghent University Hospital, Ghent, Belgium
| | - G G Brusselle
- Department of Respiratory Medicine, Laboratory for Translational Research in Obstructive Pulmonary Diseases, Ghent University Hospital, Ghent, Belgium
| | - G F Joos
- Department of Respiratory Medicine, Laboratory for Translational Research in Obstructive Pulmonary Diseases, Ghent University Hospital, Ghent, Belgium
| | - T Maes
- Department of Respiratory Medicine, Laboratory for Translational Research in Obstructive Pulmonary Diseases, Ghent University Hospital, Ghent, Belgium
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dos Santos DO, de Souza HCD, Baddini-Martinez JA, Ramos EMC, Gastaldi AC. Effects of exercise on secretion transport, inflammation, and quality of life in patients with noncystic fibrosis bronchiectasis: Protocol for a randomized controlled trial. Medicine (Baltimore) 2018; 97:e9768. [PMID: 29443739 PMCID: PMC5839837 DOI: 10.1097/md.0000000000009768] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
BACKGROUND Bronchiectasis is characterized by pathological and irreversible bronchial dilatation caused by the inefficient mucus and microorganism clearance and progression of inflammatory processes. The most frequent characteristic is the increase in bronchial mucus production resulting in slower transport and damage to the mucociliary transport. AIMS To evaluate the effects of exercise on mucus transport, inflammation, and resistance of the respiratory and autonomic nervous systems and subsequent effects on quality of life in patients with bronchiectasis who are enrolled in a pulmonary rehabilitation program. METHODS Sixty subjects of both sexes between 18 and 60 years (30 volunteers with clinically stable bronchiectasis and 30 healthy volunteers) will be included. Participants with chronic obstructive pulmonary disease, decompensated cardiovascular or metabolic diseases, neuromuscular and musculoskeletal diseases, and active smokers will be excluded. Volunteers will be randomly allocated to the pulmonary rehabilitation or control groups. The primary outcomes will be nasal transport time as evaluated by nasal saccharin transport time, analysis of nasal lavage, enzyme immunoassay of exhaled expiration, and analysis of the mucus properties. The secondary outcomes will include pulmonary function tests, impulse oscillometry, heart rate variability analysis, and quality of life questionnaires. DISCUSSION In addition to the benefits for patients already described in the literature, the additional benefit of mucus removal may contribute to optimizing treatments and better control of the disease. CONCLUSION This protocol could provide new information about the unclear mechanisms regarding exercise to aid in the removal of secretions.
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Affiliation(s)
| | | | | | - Ercy Mara Cipulo Ramos
- Department of Physiotherapy, São Paulo State University, Presidente Prudente, São Paulo, Brazil
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Alves AGF, de Azevedo Giacomin MF, Braga ALF, Sallum AME, Pereira LAA, Farhat LC, Strufaldi FL, de Faria Coimbra Lichtenfels AJ, de Santana Carvalho T, Nakagawa NK, Silva CA, Farhat SCL. Influence of air pollution on airway inflammation and disease activity in childhood-systemic lupus erythematosus. Clin Rheumatol 2017; 37:683-690. [PMID: 29098476 DOI: 10.1007/s10067-017-3893-1] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2017] [Revised: 10/14/2017] [Accepted: 10/24/2017] [Indexed: 02/06/2023]
Abstract
Exposure to fine particles may trigger pulmonary inflammation/systemic inflammation. The objective of this study was to investigate the association between daily individual exposure to air pollutants and airway inflammation and disease activity in childhood-onset systemic lupus erythematosus (cSLE) patients. A longitudinal panel study was carried out in 108 consecutive appointments with cSLE patients without respiratory diseases. Over four consecutive weeks, daily individual measures of nitrogen dioxide (NO2), fine particulate matter (PM2.5), ambient temperature, and humidity were obtained. This cycle was repeated every 2.5 months along 1 year, and cytokines of exhaled breath condensate-EBC [interleukins (IL) 6, 8, 17 and tumoral necrose factor-α (TNF-α)], fractional exhaled NO (FeNO), and disease activity parameters were collected weekly. Specific generalized estimation equation models were used to assess the impact of these pollutants on the risk of Systemic Lupus Erythematous Disease Activity Index 2000 (SLEDAI-2K) ≥ 8, EBC cytokines, and FeNO, considering the fixed effects for repetitive measurements. The models were adjusted for inflammatory indicators, body mass index, infections, medication, and weather variables. An IQR increase in PM2.5 4-day moving average (18.12 μg/m3) was associated with an increase of 0.05 pg/ml (95% CI 0.01; 0.09, p = 0.03) and 0.04 pg/ml (95% CI 0.02; 0.06, p = 0.01) in IL-17 and TNF-α EBC levels, respectively. Additionally, a short-term effect on FeNO was observed: the PM2.5 3-day moving average was associated with a 0.75 ppb increase (95% CI 0.38; 1.29, p = 0.03) in FeNO. Also, an increase of 1.47 (95% CI 1.10; 1.84) in the risk of SLEDAI-2K ≥ 8 was associated with PM2.5 7-day moving average. Exposure to inhalable fine particles increases airway inflammation/pulmonary and then systemic inflammation in cSLE patients.
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Affiliation(s)
- Andressa Guariento Ferreira Alves
- Pediatric Rheumatology Unit, Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, SP, Brazil
- Pediatric Department, Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, São Paulo, SP, Brazil
| | - Maria Fernanda de Azevedo Giacomin
- Pediatric Rheumatology Unit, Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, SP, Brazil
- Pediatric Department, Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, São Paulo, SP, Brazil
| | - Alfésio Luis Ferreira Braga
- Environmental Epidemiology Study Group, Laboratory of Experimental Air Pollution, Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
- Laboratory of Experimental Air Pollution, LIM05, Faculdade de Medicina da Universidade de Sao Paulo, São Paulo, Brazil
- Environmental Exposure and Risk Assessment Group, Collective Health Post-graduation Program, Universidade Catolica de Santos, Santos, Brazil
| | - Adriana Maluf Elias Sallum
- Pediatric Rheumatology Unit, Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, SP, Brazil
- Pediatric Department, Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, São Paulo, SP, Brazil
| | - Luiz Alberto Amador Pereira
- Environmental Epidemiology Study Group, Laboratory of Experimental Air Pollution, Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
- Laboratory of Experimental Air Pollution, LIM05, Faculdade de Medicina da Universidade de Sao Paulo, São Paulo, Brazil
- Environmental Exposure and Risk Assessment Group, Collective Health Post-graduation Program, Universidade Catolica de Santos, Santos, Brazil
| | - Luis Carlos Farhat
- Environmental Epidemiology Study Group, Laboratory of Experimental Air Pollution, Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| | - Fernando Louzada Strufaldi
- Environmental Epidemiology Study Group, Laboratory of Experimental Air Pollution, Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| | - Ana Julia de Faria Coimbra Lichtenfels
- Laboratory of Experimental Air Pollution, LIM05, Faculdade de Medicina da Universidade de Sao Paulo, São Paulo, Brazil
- Laboratory of Experimental Therapeutics, Faculdade de Medicina da Universidade de Sao Paulo, São Paulo, Brazil
| | - Tômas de Santana Carvalho
- Department of Physiotherapy, Communication Science and Disorders, Occupational Therapy, LIM 34, Faculdade de Medicina da Universidade de Sao Paulo, São Paulo, Brazil
| | - Naomi Kondo Nakagawa
- Laboratory of Experimental Air Pollution, LIM05, Faculdade de Medicina da Universidade de Sao Paulo, São Paulo, Brazil
- Department of Physiotherapy, Communication Science and Disorders, Occupational Therapy, LIM 34, Faculdade de Medicina da Universidade de Sao Paulo, São Paulo, Brazil
| | - Clovis Artur Silva
- Pediatric Rheumatology Unit, Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, SP, Brazil
- Pediatric Department, Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, São Paulo, SP, Brazil
- Division of Rheumatology, Faculdade de Medicina da Universidade de Sao Paulo, São Paulo, Brazil
| | - Sylvia Costa Lima Farhat
- Pediatric Department, Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, São Paulo, SP, Brazil.
- Environmental Epidemiology Study Group, Laboratory of Experimental Air Pollution, Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil.
- Laboratory of Experimental Air Pollution, LIM05, Faculdade de Medicina da Universidade de Sao Paulo, São Paulo, Brazil.
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Hu ZW, Zhao YN, Cheng Y, Guo CY, Wang X, Li N, Liu JQ, Kang H, Xia GG, Hu P, Zhang PJ, Ma J, Liu Y, Zhang C, Su L, Wang GF. Living near a Major Road in Beijing: Association with Lower Lung Function, Airway Acidification, and Chronic Cough. Chin Med J (Engl) 2017; 129:2184-90. [PMID: 27625090 PMCID: PMC5022339 DOI: 10.4103/0366-6999.189923] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Background: The effects of near-road pollution on lung function in China have not been well studied. We aimed to investigate the effects of long-term exposure to traffic-related air pollution on lung function, airway inflammation, and respiratory symptoms. Methods: We enrolled 1003 residents aged 57.96 ± 8.99 years living in the Shichahai Community in Beijing. Distances between home addresses and the nearest major roads were measured to calculate home-road distance. We used the distance categories 1, 2, and 3, representing <100 m, 100–200 m, and >200 m, respectively, as the dose indicator for traffic-related air pollution exposure. Lung function, exhaled breath condensate (EBC) pH, and interleukin 6 levels were measured. As a follow-up, 398 participants had a second lung function assessment about 3 years later, and lung function decline was also examined as an outcome. We used regression analysis to assess the impacts of home-road distance on lung function and respiratory symptoms. As the EBC biomarker data were not normally distributed, we performed correlation analysis between home-road distance categories and EBC biomarkers. Results: Participants living a shorter distance from major roads had lower percentage of predicted value of forced expiratory volume in 1 s (FEV1% −1.54, 95% confidence interval [CI]: −0.20 to −2.89). The odds ratio for chronic cough was 2.54 (95% CI: 1.57–4.10) for category 1 and 1.97 (95% CI: 1.16–3.37) for category 2, compared with category 3. EBC pH was positively correlated with road distance (rank correlation coefficient of Spearman [rs] = 0.176, P < 0.001). Conclusions: Long-term exposure to traffic-related air pollution in people who live near major roads in Beijing is associated with lower lung function, airway acidification, and a higher prevalence of chronic cough. EBC pH is a potential useful biomarker for evaluating air pollution exposure.
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Affiliation(s)
- Zhan-Wei Hu
- Department of Respiratory and Critical Care Medicine, Peking University First Hospital, Beijing 100034, China
| | - Yan-Ni Zhao
- Department of Respiratory and Critical Care Medicine, Peking University First Hospital, Beijing 100034, China
| | - Yuan Cheng
- Department of Respiratory and Critical Care Medicine, Peking University First Hospital, Beijing 100034, China
| | - Cui-Yan Guo
- Department of Respiratory and Critical Care Medicine, Peking University First Hospital, Beijing 100034, China
| | - Xi Wang
- Department of Respiratory and Critical Care Medicine, Peking University First Hospital, Beijing 100034, China
| | - Nan Li
- Department of Respiratory and Critical Care Medicine, Peking University First Hospital, Beijing 100034, China
| | - Jun-Qing Liu
- Department of Internal Medicine, Shichahai Community Health Care Center, Beijing 100035, China
| | - Hui Kang
- Department of Internal Medicine, Shichahai Community Health Care Center, Beijing 100035, China
| | - Guo-Guang Xia
- Department of Respiratory and Critical Care Medicine, Beijing Jishuitan Hospital, Beijing 100035, China
| | - Ping Hu
- Department of Respiratory and Critical Care Medicine, Beijing Jishuitan Hospital, Beijing 100035, China
| | - Ping-Ji Zhang
- Department of Respiratory and Critical Care Medicine, Beijing Jishuitan Hospital, Beijing 100035, China
| | - Jing Ma
- Department of Respiratory and Critical Care Medicine, Peking University First Hospital, Beijing 100034, China
| | - Ying Liu
- Department of Respiratory and Critical Care Medicine, Peking University First Hospital, Beijing 100034, China
| | - Cheng Zhang
- Department of Respiratory and Critical Care Medicine, Peking University First Hospital, Beijing 100034, China
| | - Li Su
- Department of Respiratory and Critical Care Medicine, Peking University First Hospital, Beijing 100034, China
| | - Guang-Fa Wang
- Department of Respiratory and Critical Care Medicine, Peking University First Hospital, Beijing 100034, China
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Cavalcante de Sá M, Nakagawa NK, Saldiva de André CD, Carvalho-Oliveira R, de Santana Carvalho T, Nicola ML, de André PA, Nascimento Saldiva PH, Vaisberg M. Aerobic exercise in polluted urban environments: effects on airway defense mechanisms in young healthy amateur runners. J Breath Res 2016; 10:046018. [DOI: 10.1088/1752-7163/10/4/046018] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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13
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Brant TCS, Yoshida CT, Carvalho TDS, Nicola ML, Martins JA, Braga LM, Oliveira RCD, Leyton V, André CSD, Saldiva PHN, Rubin BK, Nakagawa NK. Mucociliary clearance, airway inflammation and nasal symptoms in urban motorcyclists. Clinics (Sao Paulo) 2014; 69:867-70. [PMID: 25628001 PMCID: PMC4286667 DOI: 10.6061/clinics/2014(12)13] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/02/2014] [Accepted: 11/11/2014] [Indexed: 12/13/2022] Open
Abstract
OBJECTIVES There is evidence that outdoor workers exposed to high levels of air pollution exhibit airway inflammation and increased airway symptoms. We hypothesized that these workers would experience increased airway symptoms and decreased nasal mucociliary clearance associated with their exposure to air pollution. METHODS In total, 25 non-smoking commercial motorcyclists, aged 18-44 years, were included in this study. These drivers work 8-12 hours per day, 5 days per week, driving on urban streets. Nasal mucociliary clearance was measured by the saccharine transit test; airway acidification was measured by assessing the pH of exhaled breath condensate; and airway symptoms were measured by the Sino-nasal Outcome Test-20 questionnaire. To assess personal air pollution exposure, the subjects used a passive-diffusion nitrogen dioxide (NO2) concentration-monitoring system during the 14 days before each assessment. The associations between NO2 and the airway outcomes were analyzed using the Mann-Whitney test and the Chi-Square test. Clinicaltrials.gov: NCT01976039. RESULTS Compared with clearance in healthy adult males, mucociliary clearance was decreased in 32% of the motorcyclists. Additionally, 64% of the motorcyclists had airway acidification and 92% experienced airway symptoms. The median personal NO2 exposure level was 75 mg/m3 for these subjects and a significant association was observed between NO2 and impaired mucociliary clearance (p=0.036). CONCLUSION Non-smoking commercial motorcyclists exhibit increased airway symptoms and airway acidification as well as decreased nasal mucociliary clearance, all of which are significantly associated with the amount of exposure to air pollution.
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Affiliation(s)
- Tereza C S Brant
- Department of Pathology, Faculdade de Medicina da Universidade de São Paulo, São Paulo, SP, Brazil
| | - Carolina T Yoshida
- Department of Physiotherapy, Faculdade de Medicina da Universidade de São Paulo, São Paulo, SP, Brazil
| | - Tomas de S Carvalho
- Department of Physiotherapy, Faculdade de Medicina da Universidade de São Paulo, São Paulo, SP, Brazil
| | - Marina L Nicola
- Department of Physiotherapy, Faculdade de Medicina da Universidade de São Paulo, São Paulo, SP, Brazil
| | - Jocimar A Martins
- Physical Therapy Department, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
| | - Lays M Braga
- Department of Physiotherapy, Faculdade de Medicina da Universidade de São Paulo, São Paulo, SP, Brazil
| | - Regiani C de Oliveira
- Department of Pathology, Faculdade de Medicina da Universidade de São Paulo, São Paulo, SP, Brazil
| | - Vilma Leyton
- Department of Legal Medicine, Faculdade de Medicina da Universidade de São Paulo, São Paulo, SP, Brazil
| | - Carmen S de André
- Institute of Mathematics and Statistics, University of São Paulo, São Paulo, SP, Brazil
| | - Paulo H N Saldiva
- Department of Pathology, Faculdade de Medicina da Universidade de São Paulo, São Paulo, SP, Brazil
| | - Bruce K Rubin
- Department of Pediatrics, Virginia Commonwealth University School of Medicine, Richmond, Virginia, USA
| | - Naomi K Nakagawa
- Department of Pathology, Faculdade de Medicina da Universidade de São Paulo, São Paulo, SP, Brazil
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