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Wang Z, Xu M, Wang Y, Wang T, Wu N, Zheng W, Duan H. Air particulate matter pollution and circulating surfactant protein: A systemic review and meta-analysis. CHEMOSPHERE 2021; 272:129564. [PMID: 33476792 DOI: 10.1016/j.chemosphere.2021.129564] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2020] [Revised: 12/28/2020] [Accepted: 01/03/2021] [Indexed: 06/12/2023]
Abstract
OBJECTIVE Air particulate matter (PM) pollution is associated with the alterations in circulating pulmonary damage proteins. But there are not consistent results among the epidemiological studies. The aim of this study is to investigate the alteration of surfactant protein (SP) from PM exposure. METHODS We conducted a comprehensive meta-analysis by searching the databases of PubMed, Medline, EMBASE, Web of Science and CNKI before October 2020 which reported PM pollutants and surfactant protein in the population. The sources of heterogeneity were assessed by subgroup (smoking, particulate matter with different aerodynamic diameter, exposure duration) analysis. We also used the publication bias tests for the comprehensive assessment. RESULTS This meta-analysis consisted of 10 studies with 1985 subjects. The results showed that the combined standardized mean difference (SMD) value was 0.05, 95% confidence interval (CI) was -0.07 to 0.17 for serum SP-A and -0.81 (95% CI: -1.41 to -0.21) for circulating SP-D. Among smokers, the combined SMD value of SP-A were 0.29 (95% CI: 0.05 to 0.52). We did not find the correlation between publication year of SP-A and SP-D and study heterogeneity. CONCLUSIONS Circulating SP-D was significantly decreased by air particulate matter. Serum SP-A was significantly increased by PM exposure among smokers. Circulating surfactant protein may be considered as a biomarker for respiratory injury caused by air particulate matter.
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Affiliation(s)
- Zhenjie Wang
- Key Laboratory of Chemical Safety and Health, National Institute for Occupational Health and Poison Control, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Mengmeng Xu
- Key Laboratory of Chemical Safety and Health, National Institute for Occupational Health and Poison Control, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Yanhua Wang
- Key Laboratory of Chemical Safety and Health, National Institute for Occupational Health and Poison Control, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Ting Wang
- Key Laboratory of Chemical Safety and Health, National Institute for Occupational Health and Poison Control, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Nan Wu
- Key Laboratory of Chemical Safety and Health, National Institute for Occupational Health and Poison Control, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Wenjing Zheng
- Office of Epidemiology, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Huawei Duan
- Key Laboratory of Chemical Safety and Health, National Institute for Occupational Health and Poison Control, Chinese Center for Disease Control and Prevention, Beijing, China.
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Lu C, Peng W, Kuang J, Wu M, Wu H, Murithi RG, Johnson MB, Zheng X. Preconceptional and prenatal exposure to air pollution increases incidence of childhood pneumonia: A hypothesis of the (pre-)fetal origin of childhood pneumonia. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2021; 210:111860. [PMID: 33421724 DOI: 10.1016/j.ecoenv.2020.111860] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Revised: 12/19/2020] [Accepted: 12/22/2020] [Indexed: 06/12/2023]
Abstract
BACKGROUND Increasing evidence has linked childhood pneumonia with early exposure to ambient air pollution. However, the impact of exposure to air pollutants before birth is unclear. OBJECTIVE To further clarify whether exposure to a particular pollutant during preconceptional and prenatal periods, may pose a higher risk of developing childhood pneumonia. METHODS This case-control cohort study consisted of 1510 children aged 0-14 years in Changsha, China between 2017 and 2019. Data of children's history of pneumonia and blood biomarkers were obtained from the XiangYa Hospital records. Each child's exposure to air pollutants, including nitrogen dioxide (NO2), sulfur dioxide (SO2), and particulate matter with an aerodynamic diameter ≤ 10 µm (PM10), was calculated using data from ten air pollution monitoring stations. A multivariate logistic regression model was used to quantify the relationship between childhood pneumonia and exposure to ambient air pollution during the preconceptional and prenatal periods. RESULTS Childhood pneumonia was significantly associated with preconceptional and prenatal exposure to the industrial-related air pollutant, SO2, for 1 year before conception, for 3 months before conception and for the entire pregnancy, with ORs(95% CI)= 4.01(3.17-5.07), 4.06(3.29-5.00) and 6.51(4.82-8.79). Also, children who were sick with pneumonia had higher white blood cell and neutrophil counts, and children with low eosinophil count or hemoglobin are likely to get pneumonia. Sensitivity analysis showed that boys, and children in high temperature area were susceptible to the effect of both preconceptional and prenatal exposure to industrial SO2. CONCLUSION Preconceptional and prenatal exposure to industrial-related air pollution plays a significant role in the incidence and progression of childhood pneumonia, supporting the hypothesis of "(pre-)fetal origin of childhood pneumonia".
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Affiliation(s)
- Chan Lu
- XiangYa School of Public Health, Central South University, Changsha, China
| | - Wang Peng
- Department of Pediatrics, XiangYa Hospital, Central South University, Changsha, China
| | - Jian Kuang
- Department of Pediatrics, XiangYa Hospital, Central South University, Changsha, China
| | - Maolan Wu
- Department of Pediatrics, XiangYa Hospital, Central South University, Changsha, China
| | - Haiyu Wu
- XiangYa School of Medicine, Central South University, Changsha, China
| | | | - Mcsherry B Johnson
- XiangYa School of Public Health, Central South University, Changsha, China
| | - Xiangrong Zheng
- Department of Pediatrics, XiangYa Hospital, Central South University, Changsha, China.
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Clara cell protein 16 release from the nasal mucosa in allergic rhinitis, chronic rhinosinusitis, and exposure to air pollutants. Arh Hig Rada Toksikol 2019; 69:215-219. [PMID: 30285942 DOI: 10.2478/aiht-2018-69-3081] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2017] [Accepted: 09/01/2018] [Indexed: 12/21/2022] Open
Abstract
Clara cell protein 16 (CC16) is a small protein mainly produced by non-ciliated Clara cells in the respiratory epithelium. It has an anti-inflammatory role in chronic upper and lower airway eosinophilic inflammations. Decreased levels of CC16 are found in the nasal secretions and plasma of patients with chronic eosinophilic inflammatory disorders, such as asthma, allergic rhinitis, and chronic rhinosinusitis with or without nasal polyps, as well as in people exposed to high levels of air pollutants. Intranasal corticosteroid administration suppresses chronic inflammation of the nasal mucosa driven by eosinophils and stimulates local CC16 production. CC16 can be a reliable biomarker of the beneficial effects of perennial allergic rhinitis and chronic rhinosinusitis therapy and of the functional recovery of the nasal mucosa after treatment with topical glucocorticoids.
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Pneumoproteins in Offshore Drill Floor Workers. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2019; 16:ijerph16030300. [PMID: 30678045 PMCID: PMC6388385 DOI: 10.3390/ijerph16030300] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/26/2018] [Revised: 01/14/2019] [Accepted: 01/21/2019] [Indexed: 11/25/2022]
Abstract
The aim was to assess pneumoproteins and a certain biomarker of systemic inflammation in drill floor workers exposed to airborne contaminants generated during drilling offshore, taking into consideration serum biomarkers of smoking, such as nicotine (S-Nico) and cotinine. Blood samples of club cell protein 16 (CC-16), surfactant protein D (SP-D) and C-reactive protein (CRP) were collected before and after a 14-day work period from 65 drill floor workers and 65 referents. Air samples of oil mist, drilling mud components and elemental carbon were collected in person. The drill floor workers were exposed to a median air concentration of 0.18 mg/m3 of oil mist and 0.14 mg/m3 of airborne mud particles. There were no differences in the concentrations of CC-16 and SP-D across the 14-day work period and no difference between drill floor workers and referents at baseline after adjusting for differences in sampling time and smoking. CRP decreased across the work period. There was a strong association between the CC-16 concentrations and the time of sampling. Current smokers with S-Nico > detection limit (DL) had a statistically significantly lower CC-16 concentration, while smokers with S-Nico < DL had CC-16 concentrations similar to that of the non-smokers. Fourteen days of work offshore had no effect on serum pneumoprotein and CRP concentrations. However, the time of blood sampling was observed to have a strong effect on the measured concentrations of CC-16. The effect of current smoking on the CC-16 concentrations appears to be dependent on the S-Nico concentrations.
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Leite MR, Zanetta DMT, Antonangelo L, Marçal LJ, Ramos D, Almeida Burdmann E, Paula Santos U. Burnt sugarcane harvesting work: effects on pulmonary and systemic inflammatory markers. Inhal Toxicol 2018; 30:205-212. [PMID: 30328727 DOI: 10.1080/08958378.2018.1494765] [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] [Indexed: 01/18/2023]
Abstract
Objective: To evaluate the effects of burnt sugarcane harvesting on the plasmatic and urinary concentrations of the club cell secretory protein (CC16) and inflammatory systemic biomarkers in a group of sugarcane cutters. Methods: Seventy-eight sugar cane workers were evaluated. The plasmatic and urinary concentrations of CC16, a pulmonary damage marker and inflammatory systemic biomarkers were collected at three time points: before, three months after and six months after the onset of the burnt sugarcane harvesting period. All evaluations were performed at ∼7 am, before the daily work shift. In the three-month evaluation, a post-work shift assessment (acute effect) was also performed. Results: The age of the workers was 37.9 ± 11.0 years. The PM2.5 concentrations were 27.0 (23.0-33.0) and 101.0 (31.0-139.5) µg/m3 in the pre harvest and harvest periods, respectively (p < .001). Burnt sugarcane harvesting was associated with a reduction, throughout the work during burnt sugarcane harvesting (subchronic effect), in plasmatic and urinary CC16 concentrations. Acutely, there was a decrease in plasmatic concentrations. There were acute and subchronic increases in inflammatory markers (neutrophils, monocytes) and muscle damage markers (CK and LDH) and a decrease in red blood cells. Conclusions: Harvesting of burnt sugarcane was associated with acute and subchronic reductions in the plasmatic and urinary concentrations of CC16 protein and changes in systemic inflammatory markers.
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Affiliation(s)
- Marceli Rocha Leite
- a Divisao de Pneumologia , Instituto do Coracao, Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de São Paulo , São Paulo , Brazil
| | | | - Leila Antonangelo
- c Laboratório de Investigação Médica 03 (LIM-03) - Departamento de Patologia, da Faculdade de Medicina FMUSP , Universidade de São Paulo , São Paulo , Brazil
| | - Lia Junqueira Marçal
- c Laboratório de Investigação Médica 03 (LIM-03) - Departamento de Patologia, da Faculdade de Medicina FMUSP , Universidade de São Paulo , São Paulo , Brazil
| | - Dionei Ramos
- d Department of Physiotherapy , Universidade Estadual Paulista "Júlio de Mesquita Filho" Campus de Presidente Prudente , São Paulo , Brazil
| | - Emmanuel Almeida Burdmann
- e Laboratório de Investigação Médica 12 (LIM-12), Divisão de Nefrologia, Hospital das Clinicas HCFMUSP, Faculdade de Medicina , Universidade de São Paulo , São Paulo , Brazil
| | - Ubiratan Paula Santos
- f Divisão de Pneumologia , Instituto do Coracao, Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de São Paulo , São Paulo , Brazil
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Wang Y, Duan H, Meng T, Shen M, Ji Q, Xing J, Wang Q, Wang T, Niu Y, Yu T, Liu Z, Jia H, Zhan Y, Chen W, Zhang Z, Su W, Dai Y, Zhang X, Zheng Y. Reduced serum club cell protein as a pulmonary damage marker for chronic fine particulate matter exposure in Chinese population. ENVIRONMENT INTERNATIONAL 2018; 112:207-217. [PMID: 29277064 DOI: 10.1016/j.envint.2017.12.024] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/07/2017] [Revised: 12/15/2017] [Accepted: 12/15/2017] [Indexed: 06/07/2023]
Abstract
BACKGROUND Exposure to fine particulate matter (PM2.5) pollution is associated with increased morbidity and mortality from respiratory diseases. However, few population-based studies have been conducted to assess the alterations in circulating pulmonary proteins due to long-term PM2.5 exposure. METHODS We designed a two-stage study. In the first stage (training set), we assessed the associations between PM2.5 exposure and levels of pulmonary damage markers (CC16, SP-A and SP-D) and lung function in a coke oven emission (COE) cohort with 558 coke plant workers and 210 controls. In the second stage (validation set), significant initial findings were validated by an independent diesel engine exhaust (DEE) cohort with 50 DEE exposed workers and 50 controls. RESULTS Serum CC16 levels decreased in a dose response manner in association with both external and internal PM2.5 exposures in the two cohorts. In the training set, serum CC16 levels decreased with increasing duration of occupational PM2.5 exposure history. An interquartile range (IQR) (122.0μg/m3) increase in PM2.5 was associated with a 5.76% decrease in serum CC16 levels, whereas an IQR (1.06μmol/mol creatinine) increase in urinary 1-hydroxypyrene (1-OHP) concentration was associated with a 5.36% decrease in serum CC16 levels in the COE cohort. In the validation set, the concentration of serum CC16 in the PM2.5 exposed group was 22.42% lower than that of the controls and an IQR (1.24μmol/mol creatinine) increase in urinary 1-OHP concentration was associated with a 12.24% decrease in serum CC16 levels in the DEE cohort. CONCLUSIONS Serum CC16 levels may be a sensitive marker for pulmonary damage in populations with high PM2.5 exposure.
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Affiliation(s)
- Yanhua Wang
- Key Laboratory of Chemical Safety and Health, National Institute for Occupational Health and Poison Control, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Huawei Duan
- Key Laboratory of Chemical Safety and Health, National Institute for Occupational Health and Poison Control, Chinese Center for Disease Control and Prevention, Beijing, China.
| | - Tao Meng
- Key Laboratory of Chemical Safety and Health, National Institute for Occupational Health and Poison Control, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Meili Shen
- Key Laboratory of Chemical Safety and Health, National Institute for Occupational Health and Poison Control, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Qianpeng Ji
- Key Laboratory of Chemical Safety and Health, National Institute for Occupational Health and Poison Control, Chinese Center for Disease Control and Prevention, Beijing, China; Faculty of Public Health, Weifang Medical University, Weifang, China
| | - Jie Xing
- Faculty of Public Health, Weifang Medical University, Weifang, China
| | - Qingrong Wang
- Key Laboratory of Chemical Safety and Health, National Institute for Occupational Health and Poison Control, Chinese Center for Disease Control and Prevention, Beijing, China; Faculty of Public Health, Weifang Medical University, Weifang, China
| | - Ting Wang
- Key Laboratory of Chemical Safety and Health, National Institute for Occupational Health and Poison Control, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Yong Niu
- Key Laboratory of Chemical Safety and Health, National Institute for Occupational Health and Poison Control, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Tao Yu
- Key Laboratory of Chemical Safety and Health, National Institute for Occupational Health and Poison Control, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Zhong Liu
- Jinan Municipal Center for Disease Control and Prevention, Jinan, China
| | | | | | - Wen Chen
- Faculty of Preventive Medicine, School of Public Health, Sun Yat-sen University, Guangzhou, China
| | - Zhihu Zhang
- Shandong Academy of Occupational Health and Occupational Medicine, Jinan, China
| | - Wenge Su
- Laigang Hospital attached to Taishan Medical University, Laiwu, China
| | - Yufei Dai
- Key Laboratory of Chemical Safety and Health, National Institute for Occupational Health and Poison Control, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Xuchun Zhang
- Laigang Hospital attached to Taishan Medical University, Laiwu, China
| | - Yuxin Zheng
- School of Public Health, Qingdao University, Qingdao, China.
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7
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Freberg BI, Olsen R, Thorud S, Daae HL, Hersson M, Molander P, Barregard L, Ellingsen DG. Pulmonary function and serum pneumoproteins in professional ski waxers. Inhal Toxicol 2016; 28:7-13. [DOI: 10.3109/08958378.2015.1123333] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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8
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Ifegwu OC, Anyakora C, Chigome S, Torto N. Electrospun nanofiber sorbents for the pre-concentration of urinary 1-hydroxypyrene. J Anal Sci Technol 2015. [DOI: 10.1186/s40543-015-0055-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Abstract
Background
Synthetic polymers have some qualities that make them good candidates for pre concentration of trace analytes biological fluids because of their great potentials to be functionalized and electrospun into nanofibres.
Methods
In this study, Electrospun nanofiber sorbents fabricated from 11 polymers {poly(styrene-co-methacrylic acid), poly(styrene-co-divinylbenzene) (SDVB), poly(styrene-co-acrylamide), poly(styrene-co-p-sodium styrene sulfonate), polystyrene, poly(vinyl benzyl chloride), cellulose acetate, polyethylene terephthalate (PET), polysulfone, nylon 6} were evaluated for the extraction and pre-concentration of 1-hydroxypyrene from a water sample.
Results
Scanning electron microscopy (SEM) studies revealed the formation of continuous fine bead-free and randomly arrayed fibers with their average diameters ranging from 110 to 650 nm. The percentage recoveries were highest for nylon 6 with 72%, SDVB with 70%, whereas PET achieved the lowest recovery at 34%. Under optimized conditions, the analyte followed a linear relationship for all sorbents in the concentration range of 1 to 1,000 μg/L. The coefficient of determination (r
2) was between 0.9990 to 0.9999, with precision (%relative standard deviation (RSD)) ≤ 9.51% (n = 6) for all the analysis. The %RSD for intra- and inter-day precision at three different concentrations, 10, 25, and 50 μg/L, was ≤7.88% for intraday and ≤8.04% inter-day (3 days), respectively, for all evaluated sorbents. The LOD and LOQ were found to be between 0.054 and 0.16 μg/L and 0.18 and 0.53 μg/L, respectively, using a fluorescent detector.
Conclusions
The study suggested that if packed into cartridges, nylon 6 and SDVB nanofiber sorbents could serve as alternatives to the conventional C-18 sorbents in the pre-concentration and clean-up of the tumorigenic biomarker, 1-hydroxypyrene in human urine. The fabrication of selective nanofibers could also extend and simplify sample preparation for organic and biological analytes.
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Biomarkers for Lung Epithelium Injury in Occupational Hexavalent Chromium-Exposed Workers. J Occup Environ Med 2015; 57:e45-50. [DOI: 10.1097/jom.0000000000000436] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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10
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Kovalkova NA, Ragino YI, Logvinenko NI, Merekina ES, Voevoda MI. [Significance of surfactant proteins in the diagnosis of therapeutic diseases]. TERAPEVT ARKH 2015; 87:115-119. [PMID: 25823280 DOI: 10.17116/terarkh2015871115-119] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The lung provides not only respiration, but also the functioning of innate immunity mechanisms. The hydrophilic proteins SP-A and SP-D are responsible for the regulation of the latter. In the literature, there is evidence for elevated serum SP-A and SP-D levels in respiratory diseases accompanied by enhanced mucosal inflammation of the lung or its parenchymal injury and their association with age and cardiovascular diseases has been recently found. Studies of the efficiency of using SP-A and SP-D as specific markers for inflammatory lung diseases are presently worthwhile.
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Affiliation(s)
- N A Kovalkova
- Research Institute of Therapy and Preventive Medicine, Siberian Branch, Russian Academy of Medical Sciences, Novosibirsk, Russia
| | - Yu I Ragino
- Research Institute of Therapy and Preventive Medicine, Siberian Branch, Russian Academy of Medical Sciences, Novosibirsk, Russia
| | - N I Logvinenko
- Research Institute of Therapy and Preventive Medicine, Siberian Branch, Russian Academy of Medical Sciences, Novosibirsk, Russia
| | - E S Merekina
- Research Institute of Therapy and Preventive Medicine, Siberian Branch, Russian Academy of Medical Sciences, Novosibirsk, Russia
| | - M I Voevoda
- Research Institute of Therapy and Preventive Medicine, Siberian Branch, Russian Academy of Medical Sciences, Novosibirsk, Russia
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Ma YN, Qian Z, Wang J, Rodemich E, Lee YL, Lv XF, Liu YQ, Zhao Y, Huang MM, Liu Y, Sun J, He QC, Dong GH. Environmental tobacco smoke exposure, urine CC-16 levels, and asthma outcomes among Chinese children. Allergy 2015; 70:295-301. [PMID: 25495571 DOI: 10.1111/all.12559] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/09/2014] [Indexed: 11/28/2022]
Abstract
BACKGROUND Previous studies have shown the relationship between club cell secretory protein (Clara) (CC-16) and respiratory diseases. However, few studies have explored the associations between urine CC-16 levels and environmental tobacco smoke (ETS) exposure in children. The objective of this study was to evaluate whether ETS exposure is associated with CC-16 when stratified by asthma status. METHODS In our study, CC-16 was measured on 537 children aged 9-15 from northeast China in 2011-2012 using the Human Clara Cell Protein ELISA kits. Doctor-diagnosed asthma was defined as having ever been diagnosed with asthma by a physician. The relationship between ETS exposure and urine CC-16 level was assessed using linear regression. RESULTS When stratified by asthma status, a negative association between ETS exposure and urine CC-16 was observed after adjusting for the effects of the related covariates, with an adjusted β coefficient [P value] = -0.31 [0.006] in the first 2 years of life and with an adjusted β coefficient [P value] = -0.68 [0.004] in the first 2 years of life and current. CONCLUSIONS Our study shows long-term exposure to ETS was associated with urinary CC-16 among children without asthma.
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Affiliation(s)
- Y.-N. Ma
- Department of Biostatistics and Epidemiology; School of Public Health; China Medical University; Shenyang Liaoning China
| | - Z. Qian
- Department of Epidemiology; College for Public Health and Social Justice; Saint Louis University; Saint Louis MO USA
| | - J. Wang
- Department of Biostatistics; College for Public Health and Social Justice; Saint Louis University; Saint Louis MO USA
| | - E. Rodemich
- Department of Epidemiology; College for Public Health and Social Justice; Saint Louis University; Saint Louis MO USA
| | - Y. L. Lee
- Institute of Epidemiology and Preventive Medicine; College of Public Health; National Taiwan University; Taipei Taiwan
| | - X.-F. Lv
- Atmosphere pollution control center of Liaoning province; Shenyang Liaoning China
| | - Y.-Q. Liu
- Department of Biostatistics and Epidemiology; School of Public Health; China Medical University; Shenyang Liaoning China
| | - Y. Zhao
- Department of Biostatistics and Epidemiology; School of Public Health; China Medical University; Shenyang Liaoning China
| | - M.-M. Huang
- Department of Biostatistics and Epidemiology; School of Public Health; China Medical University; Shenyang Liaoning China
| | - Y. Liu
- Department of Biostatistics and Epidemiology; School of Public Health; China Medical University; Shenyang Liaoning China
| | - J. Sun
- Department of Biostatistics and Epidemiology; School of Public Health; China Medical University; Shenyang Liaoning China
| | - Q.-C. He
- Department of Biostatistics and Epidemiology; School of Public Health; China Medical University; Shenyang Liaoning China
| | - G.-H. Dong
- Department of Preventive Medicine; School of Public Health; Sun Yat-sen University; Guangzhou Guangdong China
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12
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Ellingsen DG, Ulvestad B, Bakke B, Seljeflot I, Barregard L, Thomassen Y. Serum pneumoproteins in tunnel construction workers. Int Arch Occup Environ Health 2015; 88:943-51. [PMID: 25632885 DOI: 10.1007/s00420-015-1023-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2014] [Accepted: 01/16/2015] [Indexed: 12/20/2022]
Abstract
PURPOSE The aim was to study inflammatory biomarkers in tunnel construction workers (TCW). METHODS Surfactant protein D (SP-D), Clara cell protein 16 (CC-16) and C-reactive protein (CRP) were studied in serum of 90 TCW and 50 referents before and at the end of an 11-day work period. Personal air sampling was carried out on the two consecutive days before follow-up. RESULTS The TCW's geometric mean exposure to particulate matter and α-quartz were 604 and 74 µg/m(3), respectively. The arithmetic mean concentration of elemental carbon was 51 µg/m(3). The arithmetic mean concentration of SP-D was reduced by 7.6 µg/L in the TCWs and 0.6 µg/L in the referents (p = 0.04) at the end as compared to before the work period. Subjects who had ever been TCW had lower arithmetic mean CC-16 concentrations at baseline (5.4 µg/L) than subjects who had never worked as TCW (6.4 µg/L). Years worked as TCW was significantly associated with an annual mean decline of the CC-16 concentration of 0.04 µg/L. The concentrations of the biomarker of systemic inflammation, CRP, were not affected by exposure in the TCWs. Current smoking and body mass index have a large impact on the measured biomarker concentrations. CONCLUSIONS The results suggest that former and current TCWs have lower serum CC-16 concentrations than referents, while the concentrations of SP-D decreased during exposure. The serum biomarker of systemic inflammation, CRP, was not altered during exposure. Current smoking and BMI were related to the concentrations of all measured biomarkers.
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Affiliation(s)
- Dag G Ellingsen
- National Institute of Occupational Health, P.O. Box 8149 Dep, 0033, Oslo, Norway.
| | - Bente Ulvestad
- National Institute of Occupational Health, P.O. Box 8149 Dep, 0033, Oslo, Norway.,Department of Occupational Medicine, Mesta AS, Moss, Norway
| | - Berit Bakke
- National Institute of Occupational Health, P.O. Box 8149 Dep, 0033, Oslo, Norway
| | - Ingebjørg Seljeflot
- Department of Cardiology, Center for Clinical Heart Research, Oslo University Hospital Ullevål, Oslo, Norway.,Faculty of Medicine, University of Oslo, Oslo, Norway
| | - Lars Barregard
- Department of Occupational and Environmental Medicine, University of Gothenburg, Göteborg, Sweden
| | - Yngvar Thomassen
- National Institute of Occupational Health, P.O. Box 8149 Dep, 0033, Oslo, Norway
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13
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Global review of studies on traffic police with special focus on environmental health effects. Int J Occup Med Environ Health 2014; 27:523-35. [PMID: 25034905 DOI: 10.2478/s13382-014-0285-5] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2013] [Accepted: 04/14/2014] [Indexed: 11/20/2022] Open
Abstract
Since occupation is a major determinant of health, traffic police personnel face multiple occupational hazards. They are continuously exposed to vehicular emissions and work in a noisy and polluted environment. The objective of the present review is to explore the impact of occupational health hazards on the health of traffic police personnel. Published research papers on traffic police reporting occupational health issues were accessed and reviewed. Attempts were made to access papers that reported negative associations in order to present a balanced review. The majority of the studies have reported a decrease in the lung function and increased respiratory morbidity. The research on the cytogenetic abnormalities or genotoxic effect of vehicular emissions arising due to long-term exposure to benzene and other polyaromatic hydrocarbons has provided conflicting results, since more or less equal numbers of studies have given evidence for and against the causal association. There is a vast accumulation of epidemiological evidence on the casual association between vehicular pollution and its carcinogenic effect. Multiple studies have concluded that traffic police are highly stressed. A number of occupational factors have been attributed to stress among traffic police. Occupational health studies help us to understand the effects of vehicular pollution and its adverse influence on workers. They also provide opportunity for defined exposures measurements and precise risk assessment. The findings from these studies are easily generalizable and can help us understand the impact of air pollution on the general population.
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Provost EB, Chaumont A, Kicinski M, Cox B, Fierens F, Bernard A, Nawrot TS. Serum levels of club cell secretory protein (Clara) and short- and long-term exposure to particulate air pollution in adolescents. ENVIRONMENT INTERNATIONAL 2014; 68:66-70. [PMID: 24709782 DOI: 10.1016/j.envint.2014.03.011] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2013] [Revised: 02/15/2014] [Accepted: 03/12/2014] [Indexed: 06/03/2023]
Abstract
BACKGROUND Studies in populations have shown that particulate air pollution is associated with changes in lung function in adolescents. OBJECTIVE We investigated the effect of short- and long-term exposure to particulate matter (PM10) on the pulmonary health of adolescents, using serum lung club cell secretory protein (Clara) (CC16) as a biomarker for respiratory epithelium integrity. METHODS We measured serum CC16 in 825 adolescents (57% girls, mean age: 15 years). Short-term and long-term exposure to ambient PM10 was estimated for each participant's home address using a kriging interpolation method. To explore the association between PM10 and serum CC16 we applied restricted cubic splines with 5 knots located at the 5th, 25th, 50th, 75th and 95th percentiles of the PM10 distribution. The explorative analyses showed a change in the slope of this association, after which a change-point analysis was performed. RESULTS After adjustment for potential covariates, the analysis showed strong associations between PM10 concentrations, averaged over the week preceding the clinical examination, and serum CC16 levels. Each 5 μg/m(3) increase in mean PM10 concentration in the week before the clinical examination was associated with a substantial increase of 0.52 μg/l (95% confidence interval: 0.31 to 0.73; p<0.0001) in serum CC16 levels. The association appears nonlinear with a flattening out of the slope at mean week PM10 levels above 37 μg/m(3). There was no evidence of an association between long-term exposure to PM10 and serum CC16 concentrations. CONCLUSIONS Our findings suggest that short-term exposure to particulate air pollution may compromise the integrity of the lung epithelium and lead to increased epithelial barrier permeability in the lungs of adolescents, even at low concentrations.
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Affiliation(s)
- Eline B Provost
- Centre for Environmental Sciences, Hasselt University, Diepenbeek, Belgium; Environmental Risk and Health, Flemish Institute for Technological Research (VITO), Mol, Belgium
| | - Agnès Chaumont
- Louvain Centre for Toxicology and Applied Pharmacology, Université catholique de Louvain, Brussels, Belgium
| | - Michal Kicinski
- Centre for Environmental Sciences, Hasselt University, Diepenbeek, Belgium
| | - Bianca Cox
- Centre for Environmental Sciences, Hasselt University, Diepenbeek, Belgium
| | - Frans Fierens
- Belgian Interregional Environment Agency, Brussels, Belgium
| | - Alfred Bernard
- Louvain Centre for Toxicology and Applied Pharmacology, Université catholique de Louvain, Brussels, Belgium
| | - Tim S Nawrot
- Centre for Environmental Sciences, Hasselt University, Diepenbeek, Belgium; Department of Public Health, Occupational and Environmental Medicine, Leuven University (KU Leuven), Leuven, Belgium.
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Ifegwu OC, Anyakora C, Chigome S, Torto N. Application of Nanofiber-packed SPE for Determination of Urinary 1-Hydroxypyrene Level Using HPLC. ANALYTICAL CHEMISTRY INSIGHTS 2014; 9:17-25. [PMID: 24812483 PMCID: PMC3999818 DOI: 10.4137/aci.s13560] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/03/2013] [Revised: 01/15/2014] [Accepted: 01/18/2014] [Indexed: 11/05/2022]
Abstract
It is always desirable to achieve maximum sample clean-up, extraction, and pre-concentration with the minimum possible organic solvent. The miniaturization of sample preparation devices was successfully demonstrated by packing 10 mg of 11 electrospun polymer nanofibers into pipette tip micro column and mini disc cartridges for efficient pre-concentration of 1-hydroxypyrene in urine samples. 1-hydroxypyrene is an extensively studied biomarker of the largest class of chemical carcinogens. Excretory 1-hydroxypyrene was monitored with HPLC/fluorescence detector. Important parameters influencing the percentage recovery such as fiber diameter, fiber packing amount, eluent, fiber packing format, eluent volume, surface area, porosity, and breakthrough parameters were thoroughly studied and optimized. Under optimized condition, there was a near perfect linearity of response in the range of 1-1000 μg/L with a coefficient of determination (r (2)) between 0.9992 and 0.9999 and precision (% RSD) ≤7.64% (n = 6) for all the analysis (10, 25, and 50 μg/L). The Limit of detection (LOD) was between 0.022 and 0.15 μg/L. When compared to the batch studies, both disc packed nanofiber sorbents and pipette tip packed sorbents exhibited evident dominance based on their efficiencies. The experimental results showed comparable absolute recoveries for the mini disc packed fibers (84% for Nylon 6) and micro columns (80% for Nylon 6), although the disc displayed slightly higher recoveries possibly due to the exposure of the analyte to a larger reacting surface. The results also showed highly comparative extraction efficiencies between the nanofibers and conventional C-18 SPE sorbent. Nevertheless, miniaturized SPE devices simplified sample preparation, reducing back pressure, time of the analysis with acceptable reliability, selectivity, detection levels, and environmental friendliness, hence promoting green chemistry.
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Affiliation(s)
- Okechukwu Clinton Ifegwu
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, University of Lagos, Lagos, Nigeria. ; Department of Chemistry, Rhodes University, Grahamstown, South Africa
| | - Chimezie Anyakora
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, University of Lagos, Lagos, Nigeria
| | - Samuel Chigome
- Department of Chemistry, Rhodes University, Grahamstown, South Africa
| | - Nelson Torto
- Department of Chemistry, Rhodes University, Grahamstown, South Africa
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Ifegwu C, Igwo-Ezikpe MN, Anyakora C, Osuntoki A, Oseni KA, Alao EO. 1-hydroxypyrene levels in blood samples of rats after exposure to generator fumes. BIOMARKERS IN CANCER 2013; 5:1-6. [PMID: 24179393 PMCID: PMC3791950 DOI: 10.4137/bic.s10759] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Polynuclear Aromatic Hydrocarbons (PAHs) are a major component of fuel generator fumes. Carcinogenicity of these compounds has long been established. In this study, 37 Swiss albino rats were exposed to generator fumes at varied distances for 8 hours per day for a period of 42 days and the level of 1-hydroxypyrene in their blood was evaluated. This study also tried to correlate the level of blood 1-hyroxypyrene with the distance from the source of pollution. Plasma was collected by centrifuging the whole blood sample followed by complete hydrolysis of the conjugated 1-hydroxypyrene glucuronide to yield the analyte of interest, 1-hydroxypyrene, which was achieved using beta glucuronidase. High performance liquid chromatography (HPLC) with UV detector was used to determine the 1-hydroxypyrene concentrations in the blood samples. The mobile phase was water:methanol (12:88 v/v) isocratic run at the flow rate of 1.2 mL/min with CI8 stationary phase at 250 nm. After 42 days of exposure, blood concentration level of 1-hydroxypyrene ranged from 34 μg/mL to 26.29 μg/mL depending on the distance from source of exposure. The control group had no 1-hydroxypyrene in their blood. After the period of exposure, percentage of death correlated with the distance from the source of exposure. Percentage of death ranged from 56% to zero depending on the proximity to source of pollution.
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Affiliation(s)
- Clinton Ifegwu
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, University of Lagos
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17
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Greven FE, Krop EJ, Spithoven JJ, Burger N, Rooyackers JM, Kerstjens HA, van der Heide S, Heederik DJ. Acute respiratory effects in firefighters. Am J Ind Med 2012; 55:54-62. [PMID: 21959832 DOI: 10.1002/ajim.21012] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/29/2011] [Indexed: 01/14/2023]
Abstract
BACKGROUND Associations between acute respiratory inflammatory responses, changes in bronchial hyperresponsiveness, serum pneumoprotein levels, and exposure to fire smoke were studied. METHODS The study comprised 51 firefighters. Blood samples were taken within 24 hr following exposure to fire smoke, and after a week and 3 months. Sputum was induced within 5 days post-exposure and subjects underwent spirometry and methacholine provocation one week post-exposure. Exposure was registered by a questionnaire. RESULTS No changes were observed following smoke exposure in bronchial hyperresponsiveness and serum pneumoprotein levels. Nevertheless, in a sizable proportion of the firefighters (44%) elevated sputum neutrophil levels (≥60%) were found. Serum IL-8 concentrations were higher 24 hr post-exposure compared to pre-exposure. Elevated neutrophil levels in sputum were associated with elevated serum IL-8 (β = 0.010, P = 0.004) and TNFα (β = 0.005, P = 0.034) levels within 24 hr post-exposure and IL-8 elevation lasted up to 3 months. CONCLUSIONS Acute exposure to fire smoke induces acute neutrophilic airway and long-lasting systemic inflammation in healthy firefighters in the absence of bronchial hyperresponsiveness.
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Affiliation(s)
- Frans E Greven
- Division of Environmental Epidemiology, Institute for Risk Assessment Sciences, Utrecht University, the Netherlands.
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Greven F, Krop E, Burger N, Kerstjens H, Heederik D. Serum pneumoproteins in firefighters. Biomarkers 2011; 16:364-71. [DOI: 10.3109/1354750x.2011.578218] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Affiliation(s)
- Frans Greven
- Department of Environmental Health, Municipal Health Services Groningen, Groningen, The Netherlands
- Division of Environmental Epidemiology, Institute for Risk Assessment Sciences, Utrecht University, Utrecht, The Netherlands
| | - Esmeralda Krop
- Division of Environmental Epidemiology, Institute for Risk Assessment Sciences, Utrecht University, Utrecht, The Netherlands
| | - Nena Burger
- Division of Environmental Epidemiology, Institute for Risk Assessment Sciences, Utrecht University, Utrecht, The Netherlands
| | - Huib Kerstjens
- Department of Pulmonary Diseases, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Dick Heederik
- Division of Environmental Epidemiology, Institute for Risk Assessment Sciences, Utrecht University, Utrecht, The Netherlands
- Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, Utrecht, The Netherlands
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Ellingsen DG, Ulvestad B, Andersson L, Barregard L. Pneumoproteins and inflammatory biomarkers in asphalt pavers. Biomarkers 2010; 15:498-507. [PMID: 20528258 DOI: 10.3109/1354750x.2010.490305] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Pneumoproteins, biomarkers of systemic inflammation and endothelial activation were studied across a season in 72 asphalt pavers, 32 asphalt plant operators and 19 asphalt engineers. Smokers had lower concentrations of Clara cell protein (CC-16) and surfactant protein A, but higher concentrations of surfactant protein D, interleukin 6, C-reactive protein, fibrinogen and intercellular adhesion molecule (ICAM)-1 than non-smokers. Smokers reporting wheezing had lower mean CC-16 concentration than smokers not reporting wheezing (5.7 vs 8.6 microg l(-1); p = 0.05). Cholesterol, P-selectin and ICAM-1 were lower in pavers and operators at the end compared with the start of the season. This may be related to increased physical activity during the season.
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20
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Sancini A, Fioravanti M, Ciarrocca M, Palermo P, Fiaschetti M, Schifano MP, Tomei G, Tomei F. Pulmonary nodules in workers exposed to urban stressor. ENVIRONMENTAL RESEARCH 2010; 110:519-525. [PMID: 20430373 DOI: 10.1016/j.envres.2010.04.001] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2009] [Revised: 04/07/2010] [Accepted: 04/14/2010] [Indexed: 05/29/2023]
Abstract
By multilayer spiral low-dose computed tomography (LD-CT) of the chest this study assesses the early detection of lung lesions on a sample of 100 traffic policemen of a big Italian city professionally exposed to urban pollutants and 100 controls non-occupationally exposed to urban pollutants matched by sex, age, length of service and cigarette smoking habit. Exposure to urban pollutants in traffic policemen was characterized using the annual average concentrations of PM(10), NO2 and benzene in the period 1998-2008 measured by fixed monitoring stations located in different areas of the city. A significant and increasing number of suspicious lung nodules with diameters between 5 and 10 mm was observed: in traffic policemen (including smokers and non-smokers) vs. controls (including smokers and non-smokers); in total smokers (including traffic policemen and controls) vs. total non-smokers (traffic policemen and controls); in smoker traffic policemen vs. smoker controls and vs. non-smoker traffic policemen; in non-smoker traffic policemen vs. non-smoker controls. The RR of finding cases with at least one lung nodule with diameters between 5 and 10mm in traffic policemen (including smokers and non-smokers) compared to controls (including smokers and non-smokers) is 1.94 (CI 1.13-3.31); in total smokers vs. non-smokers the RR is 1.96 (CI 1.20-3.19). The comparison between the interaction exposure and smoking shows an increase in smoker traffic policemen than in smoker controls (RR=2.14; CI 1.02-4.52). The RR for smoker traffic policemen was higher than in non-smoker traffic policemen (RR=2.09; CI 1.19-3.66). The results of our study show that: (1) while smoker workers have a higher risk for developing solid suspicious lung nodules, the simple routinely exposure to urban pollutants is unable to produce the same kind of increased risk; (2) the interaction of smoking and exposure to urban pollutants greatly increases the risk for the development of solid suspicious lung nodules. In conclusion, the use of chest LD-CT in workers at risk helps identify suspicious solid lung nodules at early stage.
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Affiliation(s)
- A Sancini
- University of Rome "Sapienza", Department of Occupational Medicine, Viale Regina Elena 336, 00161 Rome, Italy
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21
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Pignatti P, Balestrino A, Herr C, Bals R, Moretto D, Corradi M, Alinovi R, Delmastro M, Vogelmeier C, Nava S, Moscato G, Balbi B. Tracheostomy and related host-pathogen interaction are associated with airway inflammation as characterized by tracheal aspirate analysis. Respir Med 2008; 103:201-8. [PMID: 18980836 DOI: 10.1016/j.rmed.2008.09.008] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/14/2008] [Revised: 09/02/2008] [Accepted: 09/09/2008] [Indexed: 11/19/2022]
Abstract
In the last years an increasing number of subjects experienced respiratory failure and underwent tracheostomy. The aim of the present study was to analyze tracheal aspirates from the inflammatory point of view. Samples were collected from 38 consecutive tracheostomized patients: 13 COPD, 6 with neurologic disorders and 19 with other different causes of respiratory failure. We analyzed cells and soluble mediators related to inflammation and/or infection. We also compared results obtained in the tracheal aspirate of COPD patients with the same determination in the sputum of another group of non-tracheostomized COPD patients (n=41). Regardless of the underlying diagnosis, most of the samples were Pseudomonas aeruginosa positive and cells and soluble mediator did not differ. Treatment with steroids was associated with lower amount of total cells, neutrophils and lymphocytes, whereas treatment with antibiotics was not. Tracheal aspirate neutrophils correlated with PaCO(2) values; neutrophils and eosinophils correlated with their percentages in blood. As compared with sputa obtained from another group of culture-positive non-tracheostomized COPDs, tracheal aspirates showed similar cell count, proportions of inflammatory cells, and infection/inflammatory mediators. In conclusion tracheal aspirates presented high amounts of viable cells and soluble mediators independently to the cause of respiratory failure leading to tracheotomy and they represent suitable specimens to study infection/inflammation interactions.
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Affiliation(s)
- Patrizia Pignatti
- Allergy and Immunology Unit, IRCCS Fondazione Salvatore Maugeri, 27100 Pavia, Italy.
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22
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Madsen C, Durand KL, Nafstad P, Schwarze PE, Rønningen KS, Håheim LL. Associations between environmental exposures and serum concentrations of Clara cell protein among elderly men in Oslo, Norway. ENVIRONMENTAL RESEARCH 2008; 108:354-60. [PMID: 18762291 DOI: 10.1016/j.envres.2008.07.017] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/30/2007] [Revised: 06/15/2008] [Accepted: 07/23/2008] [Indexed: 05/19/2023]
Abstract
Cardiopulmonary morbidity and mortality is associated with several environmental exposures. Mechanistically, pathophysiological changes in the cardiopulmonary system may lead to the induction of inflammatory responses. In the present study we explored associations between environmental exposures and serum concentrations of lung Clara cell protein 16kDa, a biomarker that has recently been used to assess the integrity of the lung epithelium. Serum Clara cell protein concentrations were associated with both number of cigarettes smoked per day and number of pack-years of smoking. There was no evidence of an association between long-term exposure to ambient air pollution, as assessed at each participant's home address, and serum concentrations of CC16. However, short-term variations in both ambient air pollution and temperature were associated with increases in serum Clara cell concentrations. All findings were robust when other factors were adjusted for. These findings suggest that acute environmental exposures may compromise the integrity of the lung epithelium and lead to increased epithelial barrier permeability in the lungs of elderly men.
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Affiliation(s)
- Christian Madsen
- Division of Epidemiology, Norwegian Institute of Public Health, PO Box 4404, Nydalen, Oslo, Norway.
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23
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Kobayashi H, Kanoh S, Motoyoshi K. Serum surfactant protein-A, but not surfactant protein-D or KL-6, can predict preclinical lung damage induced by smoking. Biomarkers 2008; 13:385-92. [DOI: 10.1080/13547500801903651] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Hansen ÅM, Mathiesen L, Pedersen M, Knudsen LE. Urinary 1-hydroxypyrene (1-HP) in environmental and occupational studies—A review. Int J Hyg Environ Health 2008; 211:471-503. [DOI: 10.1016/j.ijheh.2007.09.012] [Citation(s) in RCA: 180] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2007] [Revised: 09/17/2007] [Accepted: 09/25/2007] [Indexed: 12/25/2022]
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Étude de la protéine de la cellule de Clara (CC16) comme marqueur de pneumotoxicité chez les travailleurs de fonderie. ARCH MAL PROF ENVIRO 2008. [DOI: 10.1016/j.admp.2008.06.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Parvez F, Chen Y, Brandt-Rauf PW, Bernard A, Dumont X, Slavkovich V, Argos M, D’Armiento J, Foronjy R, Hasan MR, Eunus HEMM, Graziano JH, Ahsan H. Nonmalignant respiratory effects of chronic arsenic exposure from drinking water among never-smokers in Bangladesh. ENVIRONMENTAL HEALTH PERSPECTIVES 2008; 116:190-5. [PMID: 18288317 PMCID: PMC2235213 DOI: 10.1289/ehp.9507] [Citation(s) in RCA: 86] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2006] [Accepted: 11/02/2007] [Indexed: 05/07/2023]
Abstract
BACKGROUND Arsenic from drinking water has been associated with malignant and nonmalignant respiratory illnesses. The association with nonmalignant respiratory illnesses has not been well established because the assessments of respiratory symptoms may be influenced by recall bias or interviewer bias because participants had visible skin lesions. OBJECTIVES We examined the relationship of the serum level of Clara cell protein CC16--a novel biomarker for respiratory illnesses--with well As, total urinary As, and urinary As methylation indices. METHODS We conducted a cross-sectional study in nonsmoking individuals (n = 241) selected from a large cohort with a wide range of As exposure (0.1-761 microg/L) from drinking water in Bangladesh. Total urinary As, urinary As metabolites, and serum CC16 were measured in urine and serum samples collected at baseline of the parent cohort study. RESULTS We observed an inverse association between urinary As and serum CC16 among persons with skin lesions (beta = -0.13, p = 0.01). We also observed a positive association between secondary methylation index in urinary As and CC16 levels (beta = 0.12, p = 0.05) in the overall study population; the association was stronger among people without skin lesions (beta = 0.18, p = 0.04), indicating that increased methylation capability may be protective against As-induced respiratory damage. In a subsample of study participants undergoing spirometric measures (n = 31), we observed inverse associations between urinary As and predictive FEV(1) (forced expiratory volume measured in 1 sec) (r = -0.37; FEV(1)/forced vital capacity ratio and primary methylation index (r = -0.42, p = 0.01). CONCLUSIONS The findings suggest that serum CC16 may be a useful biomarker of epithelial lung damage in individuals with arsenical skin lesions. Also, we observed the deleterious respiratory effects of As exposure at concentrations lower than reported in earlier studies.
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Affiliation(s)
- Faruque Parvez
- Department of Environmental Health Sciences, Mailman School of Public Health, Columbia University, New York, USA
| | - Yu Chen
- Department of Environmental Medicine, New York University School of Medicine, New York, USA
| | - Paul W. Brandt-Rauf
- Department of Environmental Health Sciences, Mailman School of Public Health, Columbia University, New York, USA
| | - Alfred Bernard
- Department of Public Health, Catholic University of Louvain, Brussels, Belgium
| | - Xavier Dumont
- Department of Public Health, Catholic University of Louvain, Brussels, Belgium
| | - Vesna Slavkovich
- Department of Environmental Health Sciences, Mailman School of Public Health, Columbia University, New York, USA
| | - Maria Argos
- Department of Epidemiology, Mailman School of Public Health, Columbia University, New York, USA
| | - Jeanine D’Armiento
- Department of Medicine, College of Physicians and Surgeons, Columbia University, New York, USA
| | - Robert Foronjy
- Department of Medicine, College of Physicians and Surgeons, Columbia University, New York, USA
| | | | - HEM Mahbubul Eunus
- Columbia University Arsenic Research Project in Bangladesh, Dhaka, Bangladesh
| | - Joseph H. Graziano
- Department of Environmental Health Sciences, Mailman School of Public Health, Columbia University, New York, USA
| | - Habibul Ahsan
- Department of Health Studies and Cancer Research Center, University of Chicago, Chicago, USA
- Address correspondence to H. Ahsan, Department of Health Studies, The University of Chicago, 5841 South Maryland Ave., Suite N102, Chicago, IL 60637 USA. Telephone: (773) 834-9956. Fax: (773) 834-0139. E-mail:
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Clara Cell Protein as a Biomarker for Lung Epithelial Injury in Asphalt Workers. J Occup Environ Med 2007; 49:1073-8. [DOI: 10.1097/jom.0b013e3181570726] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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29
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Widmeier S, Bernard A, Tschopp A, Jeggli S, Dumont X, Hilfiker S, Oppliger A, Hotz P. Surfactant protein A, exposure to endotoxin, and asthma in garbage collectors and in wastewater workers. Inhal Toxicol 2007; 19:351-60. [PMID: 17365040 DOI: 10.1080/08958370601144456] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
Endotoxin causes an inflammation at the bronchial and alveolar level. The inflammation-induced increase in permeability of the bronchoalveolar epithelial barrier is supposed to cause a leakage of pneumoproteins. Therefore, their concentrations are expected to increase in the bloodstream. This study aimed at examining the association between occupational exposure to endotoxin and a serum pneumoprotein, surfactant protein A, to look for nonoccupational factors capable of confounding this association, and examine the relation between surfactant protein A and spirometry. There were 369 control subjects, 325 wastewater workers, and 84 garbage collectors in the study. Exposure to endotoxin was assessed through personal sampling and the Limulus amebocytes lysate assay. Surfactant protein A was determined by an in house sandwich enzyme-linked immunosorbent assay (ELISA) in 697 subjects. Clinical and smoking history were ascertained and spirometry carried out according to American Thoracic Society criteria. Multiple linear regression was used for statistical analysis. Exposure was fairly high during some tasks in wastewater workers but did not influence surfactant protein A. Surfactant protein A was lower in asthmatics. Interindividual variability was large. No correlation with spirometry was found. Endotoxin has no effect on surfactant protein A at these endotoxin levels and serum surfactant protein A does not correlate with spirometry. The decreased surfactant protein A secretion in asthmatics requires further study.
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Affiliation(s)
- Susanne Widmeier
- Occupational and Environmental Medicine Unit, University of Zurich, Zurich, Switzerland
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Chen J, Lam S, Pilon A, McWilliams A, Melby J, Szabo E. The association between the anti-inflammatory protein CC10 and smoking status among participants in a chemoprevention trial. Cancer Epidemiol Biomarkers Prev 2007; 16:577-83. [PMID: 17372255 DOI: 10.1158/1055-9965.epi-06-0923] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
CC10, the secretory product of bronchiolar Clara cells, is infrequently expressed in non-small cell lung cancer (NSCLC), and its overexpression in NSCLC cell lines results in a less malignant phenotype. CC10 levels in bronchoalveolar lavage fluid (BAL) and serum are significantly lower in current smokers than healthy nonsmokers, but the effect of long-term smoking cessation on CC10 is unknown. We measured CC10 in baseline BAL and plasma collected from current (n = 81) and former (n = 23) smokers participating in a chemoprevention trial. Former smokers had significantly higher plasma CC10 levels compared with current smokers [mean, 62.1 ng/mL (95% CI, 43.0-81.2); range, 23.0-175.0 ng/mL for former smokers; and mean, 37.1 ng/mL (95% CI, 29.8-44.4); range, 5.0-171.0 ng/mL for current smokers; P < 0.001]. BAL CC10 levels also trended in the same direction. A significant positive correlation was found between CC10 plasma and BAL levels. After adjustment for age, sex, and pack-years of cigarette consumption, former smokers had 1.70 (95% CI, 1.23-2.36) times higher plasma CC10 levels than current smokers (P < 0.01), whereas former smokers also had nonsignificantly higher baseline BAL CC10 levels compared with current smokers [adjusted mean ratio (95% CI), 1.60 (0.92-2.80), P = 0.094 and 1.35 (0.86-2.10), P = 0.193 for the absolute and normalized BAL CC10, respectively]. These results show that sustained smoking cessation is associated with higher plasma CC10 levels, suggesting that at least some of the damage associated with tobacco smoke may be repaired by long-term smoking cessation.
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Affiliation(s)
- Jiping Chen
- Cancer Prevention Fellowship Program, National Cancer Institute, 6130 Executive Boulevard, Room 2132, Bethesda, MD 20892, USA
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31
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Sorensen GL, Husby S, Holmskov U. Surfactant protein A and surfactant protein D variation in pulmonary disease. Immunobiology 2007; 212:381-416. [PMID: 17544823 DOI: 10.1016/j.imbio.2007.01.003] [Citation(s) in RCA: 118] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2006] [Accepted: 01/02/2007] [Indexed: 12/17/2022]
Abstract
Surfactant proteins A (SP-A) and D (SP-D) have been implicated in pulmonary innate immunity. The proteins are host defense lectins, belonging to the collectin family which also includes mannan-binding lectin (MBL). SP-A and SP-D are pattern-recognition molecules with the lectin domains binding preferentially to sugars on a broad spectrum of pathogen surfaces and thereby facilitating immune functions including viral neutralization, clearance of bacteria, fungi and apoptotic and necrotic cells, modulation of allergic reactions, and resolution of inflammation. SP-A and SP-D can interact with receptor molecules present on immune cells leading to enhanced microbial clearance and modulation of inflammation. SP-A and SP-D also modulate the functions of cells of the adaptive immune system including dendritic cells and T cells. Studies on SP-A and SP-D polymorphisms and protein levels in bronchoalveolar lavage and blood have indicated associations with a multitude of pulmonary inflammatory diseases. In addition, accumulating evidence in mouse models of infection and inflammation indicates that recombinant forms of the surfactant proteins are biologically active in vivo and may have therapeutic potential in controlling pulmonary inflammatory disease. The presence of the surfactant collectins, especially SP-D, in non-pulmonary tissues, such as the gastrointestinal tract and genital organs, suggest additional actions located to other mucosal surfaces. The aim of this review is to summarize studies on genetic polymorphisms, structural variants, and serum levels of human SP-A and SP-D and their associations with human pulmonary disease.
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