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Koussé JND, Ilboudo S, Ouédraogo AR, Ouédraogo JCRP, Hunsmann M, Ouédraogo GG, Ouédraogo M, Semdé R, Ouédraogo S. Pulmonary function assessment among conventional and organic cotton farmers exposed to pesticides in the Central-West region of Burkina Faso. Int Arch Occup Environ Health 2024; 97:681-693. [PMID: 38777924 DOI: 10.1007/s00420-024-02075-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2024] [Accepted: 05/14/2024] [Indexed: 05/25/2024]
Abstract
BACKGROUND Respiratory diseases have been associated with the exposure of populations to some environmental pollutants such as pesticides. To assess effects of pesticides on farmers' respiratory health, this study aimed to evaluate the pulmonary function of cotton farmers exposed to synthetic and natural pesticides in the Central-West region of Burkina Faso. METHODS A cross-sectional study was conducted from June to July 2022 among 281 conventional and 189 organic cotton farmers. After collecting information on pesticide use conditions, pulmonary function tests (PFTs) were performed on each farmer according to the American Thoracic Society/European Respiratory Society guidelines, in order to assess chronic respiratory effects among cotton producers. Binary logistic regression was used to assess factors associated with the occurrence of ventilatory changes. RESULTS Both conventional and organic cotton farmers reported similar chronic respiratory symptoms in different proportions. The main reported were rhinitis (54.45% conventional vs. 34.92% organic), chest pains (41.28% conventional vs. 23.81% organic), cough (33.45% conventional, 24.34% organic), breathlessness (31.67% conventional, 4.23% organic) (p<0.05). 16.18% and 27.50% of conventional male and female cotton farmers, respectively, had a restrictive defect. Among organic cotton farmers, 15.85% and 18.69%, respectively, of males and females had a restrictive defect. Furthermore, a significant increase in the predicted average percentage of FEV1/FVC ratio was observed among organic cotton farmers after salbutamol's use (p = 0.039). The type of cultivated cotton was not associated with ventilatory changes neither in the univariate analysis, nor in the multivariate analysis. Other factors such as farmers' age, BMI and insecticides use frequency per year were also important. Farmers who used insecticides more than 6 times per season had an increased risk of developing an obstructive defect (OR = 1.603; 95%CI: 0.484-5.309) compared to those who used them 6 times or less. CONCLUSION Chronic respiratory signs and ventilatory impairments were found among conventional and, to our knowledge, for the first time among organic cotton producers. However, these health effects were more prevalent among conventional cotton farmers than organic ones.
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Affiliation(s)
- Jean Noël Dado Koussé
- Institut de Recherche en Sciences de la Santé, Centre National de la Recherche Scientifique et Technologique (IRSS/CNRST), Ouagadougou 03, 03 BP 7047, Burkina Faso.
- Laboratoire de Développement du Médicament, Centre d'Excellence Africain de Formation, de Recherche et d'Expertises en Sciences du Médicament, Université Joseph KI-ZERBO (LADME/CEA-CFOREM/UJKZ), Ougadougou 03, BP 7021, Burkina Faso.
| | - Sylvain Ilboudo
- Institut de Recherche en Sciences de la Santé, Centre National de la Recherche Scientifique et Technologique (IRSS/CNRST), Ouagadougou 03, 03 BP 7047, Burkina Faso
- Laboratoire de Développement du Médicament, Centre d'Excellence Africain de Formation, de Recherche et d'Expertises en Sciences du Médicament, Université Joseph KI-ZERBO (LADME/CEA-CFOREM/UJKZ), Ougadougou 03, BP 7021, Burkina Faso
- International Research Laboratory - Environnement, Santé, Sociétés, (IRL 3189, ESS) CNRST/CNRS/UCAD/UGB/USTTB, Ouagadougou, Burkina Faso
| | - Abdoul Risgou Ouédraogo
- Unité de Formation et de Recherche en Sciences de la Santé, Université Joseph KI-ZERBO (UFR-SDS/UJKZ), Ouagadougou 03, BP 7021, Burkina Faso
- Service de Pneumologie, Centre Hospitalier Universitaire de Tengandogo (CHU-Tengandogo), 11 BP 104 CMS, Ouagadougou 01, Burkina Faso
| | - Jean Claude Romaric Pingdwindé Ouédraogo
- Institut de Recherche en Sciences de la Santé, Centre National de la Recherche Scientifique et Technologique (IRSS/CNRST), Ouagadougou 03, 03 BP 7047, Burkina Faso
- Laboratoire de Développement du Médicament, Centre d'Excellence Africain de Formation, de Recherche et d'Expertises en Sciences du Médicament, Université Joseph KI-ZERBO (LADME/CEA-CFOREM/UJKZ), Ougadougou 03, BP 7021, Burkina Faso
- International Research Laboratory - Environnement, Santé, Sociétés, (IRL 3189, ESS) CNRST/CNRS/UCAD/UGB/USTTB, Ouagadougou, Burkina Faso
| | - Moritz Hunsmann
- Centre Norbert Elias (UMR 8562), Centre National de la Recherche Scientifique, Marseille / Avignon, France
| | - Geoffroy Gueswindé Ouédraogo
- Institut de Recherche en Sciences de la Santé, Centre National de la Recherche Scientifique et Technologique (IRSS/CNRST), Ouagadougou 03, 03 BP 7047, Burkina Faso
- Laboratoire de Développement du Médicament, Centre d'Excellence Africain de Formation, de Recherche et d'Expertises en Sciences du Médicament, Université Joseph KI-ZERBO (LADME/CEA-CFOREM/UJKZ), Ougadougou 03, BP 7021, Burkina Faso
- International Research Laboratory - Environnement, Santé, Sociétés, (IRL 3189, ESS) CNRST/CNRS/UCAD/UGB/USTTB, Ouagadougou, Burkina Faso
| | - Moussa Ouédraogo
- Laboratoire de Développement du Médicament, Centre d'Excellence Africain de Formation, de Recherche et d'Expertises en Sciences du Médicament, Université Joseph KI-ZERBO (LADME/CEA-CFOREM/UJKZ), Ougadougou 03, BP 7021, Burkina Faso
- Unité de Formation et de Recherche en Sciences de la Santé, Université Joseph KI-ZERBO (UFR-SDS/UJKZ), Ouagadougou 03, BP 7021, Burkina Faso
| | - Rasmané Semdé
- Laboratoire de Développement du Médicament, Centre d'Excellence Africain de Formation, de Recherche et d'Expertises en Sciences du Médicament, Université Joseph KI-ZERBO (LADME/CEA-CFOREM/UJKZ), Ougadougou 03, BP 7021, Burkina Faso
- Unité de Formation et de Recherche en Sciences de la Santé, Université Joseph KI-ZERBO (UFR-SDS/UJKZ), Ouagadougou 03, BP 7021, Burkina Faso
| | - Sylvin Ouédraogo
- Institut de Recherche en Sciences de la Santé, Centre National de la Recherche Scientifique et Technologique (IRSS/CNRST), Ouagadougou 03, 03 BP 7047, Burkina Faso
- Laboratoire de Développement du Médicament, Centre d'Excellence Africain de Formation, de Recherche et d'Expertises en Sciences du Médicament, Université Joseph KI-ZERBO (LADME/CEA-CFOREM/UJKZ), Ougadougou 03, BP 7021, Burkina Faso
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2
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Shigematsu M, Kawamura T, Deshpande DA, Kirino Y. Immunoactive signatures of circulating tRNA- and rRNA-derived RNAs in chronic obstructive pulmonary disease. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.06.19.599707. [PMID: 38948719 PMCID: PMC11212963 DOI: 10.1101/2024.06.19.599707] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/02/2024]
Abstract
Chronic obstructive pulmonary disease (COPD) is the most prevalent lung disease, and macrophages play a central role in the inflammatory response in COPD. We here report a comprehensive characterization of circulating short non-coding RNAs (sncRNAs) in plasma from patients with COPD. While circulating sncRNAs are increasingly recognized for their regulatory roles and biomarker potential in various diseases, the conventional RNA-seq method cannot fully capture these circulating sncRNAs due to their heterogeneous terminal structures. By pre-treating the plasma RNAs with T4 polynucleotide kinase, which converts all RNAs to those with RNA-seq susceptible ends (5'-phosphate and 3'-hydroxyl), we comprehensively sequenced a wide variety of non-microRNA sncRNAs, such as 5'-tRNA halves containing a 2',3'-cyclic phosphate. We discovered a remarkable accumulation of the 5'-half derived from tRNA ValCAC in plasma from COPD patients, whereas the 5'-tRNA GlyGCC half is predominant in healthy donors. Further, the 5'-tRNA ValCAC half activates human macrophages via Toll-like receptor 7 and induces cytokine production. Additionally, we identified circulating rRNA-derived fragments that were upregulated in COPD patients and demonstrated their ability to induce cytokine production in macrophages. Our findings provide evidence of circulating, immune-active sncRNAs in patients with COPD, suggesting that they serve as inflammatory mediators in the pathogenesis of COPD.
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Kaushal A, Karimi DM, Nazari DR, Opare K, Museru M, Reza Nikoo DM. Environmental Exposure and Respiratory Health: Unraveling the Impact of Toxic Release Inventory Facilities on COPD Prevalence. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024:124286. [PMID: 38823548 DOI: 10.1016/j.envpol.2024.124286] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/26/2024] [Revised: 05/28/2024] [Accepted: 05/29/2024] [Indexed: 06/03/2024]
Abstract
This cross-sectional geospatial analysis explores the prevalence of Chronic Obstructive Pulmonary Disease (COPD) concerning the proximity to toxic release inventory (TRI) facilities in Jefferson County, Alabama. Employing the fuzzy analytical hierarchy process (FAHP), the study evaluates COPD prevalence, comorbidities, healthcare access, and individual health assessments. Given the mounting evidence linking environmental pollutants to COPD exacerbations, the research probes the influence of TRI sites on respiratory health, integrating Geographic Information Systems (GIS) to scrutinize the geospatial vulnerability of communities neighboring TRI sites. Socio-demographic disparities, economic conditions, and air pollution are emphasized in the analysis. The EPA's Toxic Release Inventory serves as the cornerstone for assessing the association between TRI proximity and COPD prevalence. The analysis uncovers a notable inverse correlation between distance from TRI sites and COPD prevalence, signaling potential health risks for populations residing closer to these facilities. Moreover, factors such as minority status, low income, and air pollution are associated with higher COPD prevalence, underscoring the imperative of comprehending the interplay between environmental exposure and respiratory health. This study bridges gaps in the literature by addressing the geographical nexus between COPD prevalence and pollution exposure. By leveraging FAHP, the research furnishes a holistic understanding of the multifaceted factors influencing vulnerability to COPD. The findings underscore the necessity for targeted public health interventions and policy measures to redress environmental disparities and alleviate the repercussions of TRI facilities on respiratory health.
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Affiliation(s)
- Aishwarya Kaushal
- Sustainable Smart Cities Research Center, University of Alabama-Birmingham, Birmingham, AL, USA; Department of Environmental Health Sciences, School of Public Health, the University of Alabama at Birmingham
| | - Dr Maryam Karimi
- Sustainable Smart Cities Research Center, University of Alabama-Birmingham, Birmingham, AL, USA; Department of Environmental Health Sciences, School of Public Health, the University of Alabama at Birmingham; Department of Civil, Construction, and Environmental Engineering, School of Engineering, the University of Alabama at Birmingham
| | - Dr Rouzbeh Nazari
- Sustainable Smart Cities Research Center, University of Alabama-Birmingham, Birmingham, AL, USA; Department of Environmental Health Sciences, School of Public Health, the University of Alabama at Birmingham; Department of Civil, Construction, and Environmental Engineering, School of Engineering, the University of Alabama at Birmingham.
| | - Kofi Opare
- Sustainable Smart Cities Research Center, University of Alabama-Birmingham, Birmingham, AL, USA; Department of Civil, Construction, and Environmental Engineering, School of Engineering, the University of Alabama at Birmingham
| | - Mujungu Museru
- Sustainable Smart Cities Research Center, University of Alabama-Birmingham, Birmingham, AL, USA; Department of Civil, Construction, and Environmental Engineering, School of Engineering, the University of Alabama at Birmingham
| | - Dr Mohammad Reza Nikoo
- Department of Civil and Architectural Engineering, Sultan Qaboos University, Muscat, Oman
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4
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Ruggles A, Benakis C. Exposure to Environmental Toxins: Potential Implications for Stroke Risk via the Gut- and Lung-Brain Axis. Cells 2024; 13:803. [PMID: 38786027 PMCID: PMC11119296 DOI: 10.3390/cells13100803] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2024] [Revised: 04/24/2024] [Accepted: 05/02/2024] [Indexed: 05/25/2024] Open
Abstract
Recent evidence indicates that exposure to environmental toxins, both short-term and long-term, can increase the risk of developing neurological disorders, including neurodegenerative diseases (i.e., Alzheimer's disease and other dementias) and acute brain injury (i.e., stroke). For stroke, the latest systematic analysis revealed that exposure to ambient particulate matter is the second most frequent stroke risk after high blood pressure. However, preclinical and clinical stroke investigations on the deleterious consequences of environmental pollutants are scarce. This review examines recent evidence of how environmental toxins, absorbed along the digestive tract or inhaled through the lungs, affect the host cellular response. We particularly address the consequences of environmental toxins on the immune response and the microbiome at the gut and lung barrier sites. Additionally, this review highlights findings showing the potential contribution of environmental toxins to an increased risk of stroke. A better understanding of the biological mechanisms underlying exposure to environmental toxins has the potential to mitigate stroke risk and other neurological disorders.
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Affiliation(s)
| | - Corinne Benakis
- Institute for Stroke and Dementia Research, University Hospital, LMU Munich, 81337 Munich, Germany;
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5
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Yu S, Wang X, Zhang R, Chen R, Ma L. A review on the potential risks and mechanisms of heavy metal exposure to Chronic Obstructive Pulmonary Disease. Biochem Biophys Res Commun 2023; 684:149124. [PMID: 37897914 DOI: 10.1016/j.bbrc.2023.149124] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Revised: 10/09/2023] [Accepted: 10/16/2023] [Indexed: 10/30/2023]
Abstract
Chronic Obstructive Pulmonary Disease (COPD) is a chronic disease that affects patients as well as the health and economic stability of society as a whole. At the same time, heavy metal pollution is widely recognized as having a possible impact on the environment and human health. Therefore, these diseases have become important global public health issues. In recent years, researchers have shown great interest in the potential association between heavy metal exposure and the development of COPD, and there has been a substantial increase in the number of related studies. However, we still face the challenge of developing a comprehensive and integrated understanding of this complex association. Therefore, this review aimed to evaluate the existing epidemiological studies to clarify the association between heavy metal exposure and COPD. In addition, we will discuss the biological mechanisms between the two to better understand the multiple molecular pathways and possible mechanisms of action involved, and provide additional insights for the subsequent identification of potential strategies to prevent and control the effects of heavy metal exposure on the development of COPD in individuals and populations.
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Affiliation(s)
- Shuxia Yu
- School of Public Health, Lanzhou University, Lanzhou, 730000, China
| | - Xiaoxia Wang
- School of Public Health, Lanzhou University, Lanzhou, 730000, China
| | - Rongxuan Zhang
- Department of Respiratory, The Second People's Hospital of Lanzhou City, 730030, China
| | - Rentong Chen
- School of Public Health, Lanzhou University, Lanzhou, 730000, China
| | - Li Ma
- School of Public Health, Lanzhou University, Lanzhou, 730000, China.
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6
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Lee Y, Song J, Jeong Y, Choi E, Ahn C, Jang W. Meta-analysis of single-cell RNA-sequencing data for depicting the transcriptomic landscape of chronic obstructive pulmonary disease. Comput Biol Med 2023; 167:107685. [PMID: 37976829 DOI: 10.1016/j.compbiomed.2023.107685] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Revised: 10/17/2023] [Accepted: 11/06/2023] [Indexed: 11/19/2023]
Abstract
Chronic obstructive pulmonary disease (COPD) is a respiratory disease characterized by airflow limitation and chronic inflammation of the lungs that is a leading cause of death worldwide. Since the complete pathological mechanisms at the single-cell level are not fully understood yet, an integrative approach to characterizing the single-cell-resolution landscape of COPD is required. To identify the cell types and mechanisms associated with the development of COPD, we conducted a meta-analysis using three single-cell RNA-sequencing datasets of COPD. Among the 154,011 cells from 16 COPD patients and 18 healthy subjects, 17 distinct cell types were observed. Of the 17 cell types, monocytes, mast cells, and alveolar type 2 cells (AT2 cells) were found to be etiologically implicated in COPD based on genetic and transcriptomic features. The most transcriptomically diversified states of the three etiological cell types showed significant enrichment in immune/inflammatory responses (monocytes and mast cells) and/or mitochondrial dysfunction (monocytes and AT2 cells). We then identified three chemical candidates that may potentially induce COPD by modulating gene expression patterns in the three etiological cell types. Overall, our study suggests the single-cell level mechanisms underlying the pathogenesis of COPD and may provide information on toxic compounds that could be potential risk factors for COPD.
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Affiliation(s)
- Yubin Lee
- Department of Life Sciences, Dongguk University, Seoul, 04620, Republic of Korea.
| | - Jaeseung Song
- Department of Life Sciences, Dongguk University, Seoul, 04620, Republic of Korea.
| | - Yeonbin Jeong
- Department of Life Sciences, Dongguk University, Seoul, 04620, Republic of Korea.
| | - Eunyoung Choi
- Department of Life Sciences, Dongguk University, Seoul, 04620, Republic of Korea.
| | - Chulwoo Ahn
- Department of Internal Medicine, Yonsei University College of Medicine, Seoul, 03722, Republic of Korea.
| | - Wonhee Jang
- Department of Life Sciences, Dongguk University, Seoul, 04620, Republic of Korea.
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7
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Buculei I, Dobrin ME, Matei D, Onu I, Cioroiu IB, Caba B, Postelnicu MG, Buhociu DH, Musat CL, Crisan-Dabija R, Cernomaz AT, Trofor AC. HPLC Analysis and Risk Assessment of 15 Priority PAHs in Human Blood Serum of COPD Patient from Urban and Rural Areas, Iasi (Romania). J Pers Med 2023; 13:1290. [PMID: 37763058 PMCID: PMC10532781 DOI: 10.3390/jpm13091290] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Revised: 08/03/2023] [Accepted: 08/14/2023] [Indexed: 09/29/2023] Open
Abstract
One of the leading risk factors for environmental health problems is air pollution. The World Health Organization (WHO) reports that this risk factor is associated with one of every nine deaths worldwide. Epidemiological studies conducted in this field have shown a solid connection between respiratory pathology and polycyclic aromatic hydrocarbon (PAH) exposure. COPD and asthma are respiratory diseases that were shown to have a strong association with exposure to PAHs. The purpose of the present study was to assess the serum levels of 15 PAHs in 102 COPD patients and to evaluate the results according to the residence environment of the investigated subjects. Analyses were carried out using a high-performance liquid chromatograph Nexera X2-Shimadzu Japan, which was equipped with an LC-30AD pump and an SIL-30AC autosampler. Spiked matrices, procedure blanks, spiked controls, and calibration standards in the acetonitrile were used as quality-assurance samples. Benzo(a)pyrene is the main representative of PAHs and was determined in higher concentrations in subjects with COPD versus the control group from the urban area (0.90/0.47 ng/mL) and rural area (0.73/0.44 ng/mL). The values obtained for the Benzo(a)pyrene-equivalent factor indicate a higher carcinogenic potential for patients diagnosed with COPD in urban areas compared to those in rural areas. These results could be due to traffic and vehicle emissions. This research identifies the need for legislative action to decrease semi-volatile organic compounds, especially PAHs, mainly in urban cities, in order to improve environmental management and health conditions.
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Affiliation(s)
- Ioana Buculei
- Doctoral School, Faculty of Medicine, University of Medicine and Pharmacy “Grigore T. Popa”, 700115 Iasi, Romania
| | | | - Daniela Matei
- Department of Biomedical Sciences, Faculty of Medical Bioengineering, University of Medicine and Pharmacy “Grigore T. Popa”, 700115 Iasi, Romania
| | - Ilie Onu
- Department of Biomedical Sciences, Faculty of Medical Bioengineering, University of Medicine and Pharmacy “Grigore T. Popa”, 700115 Iasi, Romania
- Doctoral School of the Faculty of Chemical Engineering and Environmental Protection “Cristofor Simionescu”, Technical University “Gheorghe Asachi”, 700050 Iasi, Romania
| | - Ionel Bogdan Cioroiu
- Romanian Academy, Iasi Branch, Research Center for Oenology, 700505 Iasi, Romania
| | - Bogdan Caba
- Department of Biomedical Sciences, Faculty of Medical Bioengineering, University of Medicine and Pharmacy “Grigore T. Popa”, 700115 Iasi, Romania
| | - Mădălina-Gabriela Postelnicu
- Department of Sports Games and Physical Education, Faculty of Physical Education and Sport, “Dunărea de Jos” University of Galați, 800008 Galati, Romania
| | - Dragos-Horia Buhociu
- Doctoral School of Urban Planning, Ion Mincu’ University of Architecture and Urban Planning, 010014 Bucharest, Romania
| | - Carmina Liana Musat
- Department of Morphological and Functional Sciences, Faculty of Medicine and Pharmacy, “Dunărea de Jos” University of Galati, 800008 Galati, Romania
| | - Radu Crisan-Dabija
- Faculty of Medicine, University of Medicine and Pharmacy “Grigore T. Popa”, 700115 Iasi, Romania
- Pulmonology Department, Clinic of Pulmonary Diseases, 700115 Iasi, Romania
| | - Andrei Tudor Cernomaz
- Faculty of Medicine, University of Medicine and Pharmacy “Grigore T. Popa”, 700115 Iasi, Romania
| | - Antigona Carmen Trofor
- Faculty of Medicine, University of Medicine and Pharmacy “Grigore T. Popa”, 700115 Iasi, Romania
- Pulmonology Department, Clinic of Pulmonary Diseases, 700115 Iasi, Romania
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8
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Wang WJ, Peng K, Lu X, Zhu YY, Li Z, Qian QH, Yao YX, Fu L, Wang Y, Huang YC, Zhao H, Wang H, Xu DX, Tan ZX. Long-term cadmium exposure induces chronic obstructive pulmonary disease-like lung lesions in a mouse model. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 879:163073. [PMID: 36965727 DOI: 10.1016/j.scitotenv.2023.163073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Revised: 03/21/2023] [Accepted: 03/22/2023] [Indexed: 05/17/2023]
Abstract
Accumulating evidences demonstrate that long-term exposure to atmospheric fine particles and air pollutants elevates the risk of chronic obstructive pulmonary disease (COPD). Cadmium (Cd) is one of the important toxic substances in atmospheric fine particles and air pollutants. In this study, we aimed to establish a mouse model to evaluate whether respiratory Cd exposure induces COPD-like lung injury. Adult male C57BL/6 mice were exposed to CdCl2 (10 mg/L, 4 h per day) by inhaling aerosol for either 10 weeks (short-term) or 6 months (long-term). The mean serum Cd concentration was 6.26 μg/L in Cd-exposed mice. Lung weight and coefficient were elevated in long-term Cd-exposed mice. Pathological scores and alveolar destructive indices were increased in long-term Cd-exposed mouse lungs. Mean linear intercept and airway wall thickness were accordingly elevated in Cd-exposed mice. Inflammatory cell infiltration was obvious and inflammatory cytokines, including TNF-α, IL-1β, IL-6, IL-8, IL-10 and TGF-β, were up-regulated in Cd-exposed mouse lungs. α-SMA, N-cadherin and vimentin, epithelial-mesenchymal transition markers, and extracellular matrix collagen deposition around small airway, determined by Masson's trichrome staining, were shown in Cd-exposed mouse lungs. COPD-characteristic lung function decline was observed in long-term Cd-exposed mice. These outcomes show that long-term respiratory exposure to Cd induces COPD-like lung lesions for the first time.
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Affiliation(s)
- Wen-Jing Wang
- The Second Affiliated Hospital, Anhui Medical University, Hefei, China
| | - Kun Peng
- The Second Affiliated Hospital, Anhui Medical University, Hefei, China
| | - Xue Lu
- Department of Toxicology, Key Laboratory of Environmental Toxicology of Anhui Higher Education Institutes, Anhui Medical University, Hefei 230032, China
| | - Yan-Yan Zhu
- Department of Toxicology, Key Laboratory of Environmental Toxicology of Anhui Higher Education Institutes, Anhui Medical University, Hefei 230032, China
| | - Zhao Li
- The Second Affiliated Hospital, Anhui Medical University, Hefei, China
| | - Qing-Hua Qian
- Department of Toxicology, Key Laboratory of Environmental Toxicology of Anhui Higher Education Institutes, Anhui Medical University, Hefei 230032, China
| | - Ya-Xin Yao
- The Second Affiliated Hospital, Anhui Medical University, Hefei, China
| | - Lin Fu
- The Second Affiliated Hospital, Anhui Medical University, Hefei, China
| | - Yan Wang
- Department of Toxicology, Key Laboratory of Environmental Toxicology of Anhui Higher Education Institutes, Anhui Medical University, Hefei 230032, China
| | - Yi-Chao Huang
- Department of Toxicology, Key Laboratory of Environmental Toxicology of Anhui Higher Education Institutes, Anhui Medical University, Hefei 230032, China
| | - Hui Zhao
- The Second Affiliated Hospital, Anhui Medical University, Hefei, China
| | - Hua Wang
- Department of Toxicology, Key Laboratory of Environmental Toxicology of Anhui Higher Education Institutes, Anhui Medical University, Hefei 230032, China
| | - De-Xiang Xu
- Department of Toxicology, Key Laboratory of Environmental Toxicology of Anhui Higher Education Institutes, Anhui Medical University, Hefei 230032, China
| | - Zhu-Xia Tan
- The Second Affiliated Hospital, Anhui Medical University, Hefei, China.
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9
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Ventura-Miranda MI, Fernández-Medina IM, Guillén-Romera E, Ortíz-Amo R, Ruíz-Fernández MD. Effect of Gestational Pesticide Exposure on the Child's Respiratory System: A Narrative Review. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:15418. [PMID: 36430137 PMCID: PMC9690583 DOI: 10.3390/ijerph192215418] [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: 10/18/2022] [Revised: 11/14/2022] [Accepted: 11/19/2022] [Indexed: 06/16/2023]
Abstract
BACKGROUND In recent years, concern has arisen worldwide about the potential adverse effects that could result from early-life exposure to pesticides. Asthma, bronchitis, and persistent cough in children have been linked to gestational exposure to pesticides. The respiratory effects of gestational exposure to pesticides are controversial. The aim of this study was to determine the relationship between pesticide exposure in pregnant women and its effect on the respiratory system of their children. METHODS A narrative review was carried out by means of a search in the main databases. RESULTS Findings of studies confirmed the effects of pesticides on the child's health. These substances cross the placenta and become transmitters of exposure to the individual at the most sensitive stage of her development. CONCLUSIONS Chronic exposure to pesticides in fetuses is associated with chronic respiratory symptoms and disease.
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Affiliation(s)
| | | | | | - Rocío Ortíz-Amo
- Department of Psychology, University of Almería, 04120 Almería, Spain
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10
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Ma L, Huo X, Yang A, Yu S, Ke H, Zhang M, Bai Y. Metal Exposure, Smoking, and the Risk of COPD: A Nested Case-Control Study in a Chinese Occupational Population. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:ijerph191710896. [PMID: 36078612 PMCID: PMC9518333 DOI: 10.3390/ijerph191710896] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Revised: 08/21/2022] [Accepted: 08/30/2022] [Indexed: 05/17/2023]
Abstract
Chronic obstructive pulmonary disease (COPD) was the third leading cause of death worldwide in 2019, with a significant disease burden. We conducted a nested case-control study using data from the China Metal-Exposed Workers Cohort Study (Jinchang Cohort) and assessed the associations of exposure to metals and tobacco smoking with the risk of COPD. We used the logistic regression model and the interaction multiplication model to assess the independent and combined effects of heavy metal and smoke exposure on COPD. The cumulative incidence of COPD was 1.04% in 21,560 participants during a median of two years of follow-up. The risk of COPD was significantly elevated with an increase in the amount of tobacco smoked daily (p < 0.05), the number of years of smoking (ptrend < 0.05), and the number of packs of cigarettes smoked per year (ptrend < 0.01). Compared with the low metal exposure group, the adjusted OR was 1.22 (95% CI: 0.85-1.76) in the medium exposure group (mining/production workers) and 1.50 (95% CI: 1.03-2.18) in the high exposure group; smoking and metal exposure had a combined effect on the incidence of COPD (pinteraction < 0.01), with an OR of 4.60 for those with >40 pack-years of smoking who also had the highest metal exposures. Both exposures to metals and smoking were associated with the risk of COPD, and there was an interaction between the two exposures for the risk of COPD.
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Affiliation(s)
- Li Ma
- School of Public Health, Lanzhou University, Lanzhou 730000, China
- Correspondence: (L.M.); (Y.B.); Tel.: +86-931-8915191 (L.M.); +86-931-8915526 (Y.B.)
| | - Xinxin Huo
- School of Public Health, Lanzhou University, Lanzhou 730000, China
| | - Aimin Yang
- Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Prince of Wales Hospital, Hong Kong SAR, China
| | - Shuxia Yu
- School of Public Health, Lanzhou University, Lanzhou 730000, China
| | - Hongxia Ke
- School of Public Health, Lanzhou University, Lanzhou 730000, China
| | - Mingxia Zhang
- School of Public Health, Lanzhou University, Lanzhou 730000, China
| | - Yana Bai
- School of Public Health, Lanzhou University, Lanzhou 730000, China
- Correspondence: (L.M.); (Y.B.); Tel.: +86-931-8915191 (L.M.); +86-931-8915526 (Y.B.)
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Marzec JM, Nadadur SS. Inflammation resolution in environmental pulmonary health and morbidity. Toxicol Appl Pharmacol 2022; 449:116070. [PMID: 35618031 PMCID: PMC9872158 DOI: 10.1016/j.taap.2022.116070] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Revised: 05/04/2022] [Accepted: 05/14/2022] [Indexed: 02/07/2023]
Abstract
Inflammation and resolution are dynamic processes comprised of inflammatory activation and neutrophil influx, followed by mediator catabolism and efferocytosis. These critical pathways ensure a return to homeostasis and promote repair. Over the past decade research has shown that diverse mediators play a role in the active process of resolution. Specialized pro-resolving mediators (SPMs), biosynthesized from fatty acids, are released during inflammation to facilitate resolution and are deficient in a variety of lung disorders. Failed resolution results in remodeling and cellular deposition through pro-fibrotic myofibroblast expansion that irreversibly narrows the airways and worsens lung function. Recent studies indicate environmental exposures may perturb and deregulate critical resolution pathways. Environmental xenobiotics induce lung inflammation and generate reactive metabolites that promote oxidative stress, injuring the respiratory mucosa and impairing gas-exchange. This warrants recognition of xenobiotic associated molecular patterns (XAMPs) as new signals in the field of inflammation biology, as many environmental chemicals generate free radicals capable of initiating the inflammatory response. Recent studies suggest that unresolved, persistent inflammation impacts both resolution pathways and endogenous regulatory mediators, compromising lung function, which over time can progress to chronic lung disease. Chronic ozone (O3) exposure overwhelms successful resolution, and in susceptible individuals promotes asthma onset. The industrial contaminant cadmium (Cd) bioaccumulates in the lung to impair resolution, and recurrent inflammation can result in chronic obstructive pulmonary disease (COPD). Persistent particulate matter (PM) exposure increases systemic cardiopulmonary inflammation, which reduces lung function and can exacerbate asthma, COPD, and idiopathic pulmonary fibrosis (IPF). While recurrent inflammation underlies environmentally induced pulmonary morbidity and may drive the disease process, our understanding of inflammation resolution in this context is limited. This review aims to explore inflammation resolution biology and its role in chronic environmental lung disease(s).
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Affiliation(s)
- Jacqui M Marzec
- National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, NC 27709, USA
| | - Srikanth S Nadadur
- National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, NC 27709, USA.
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