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Seidel J, Magzamen S, Wang YH, Neujahr V, Schaeffer JW. Lessons from Dairy Farmers for Occupational Allergy and Respiratory Disease. Curr Allergy Asthma Rep 2023:10.1007/s11882-023-01081-2. [PMID: 37191901 PMCID: PMC10186320 DOI: 10.1007/s11882-023-01081-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/18/2023] [Indexed: 05/17/2023]
Abstract
PURPOSE OF REVIEW Exposure to bioaerosols at dairies has long been associated with allergy, respiratory disease, and decreases in lung function. Recent advancements in exposure assessments have aided our understanding on the size distribution and composition of these bioaerosols, but investigations focusing solely on exposures may overlook important intrinsic factors impacting worker's susceptibility to disease. RECENT FINDINGS In our review, we discuss the most recent studies examining the exposures and genetic factors that contribute to occupational disease in dairy work. We also review more recent concerns in livestock work associated with zoonotic pathogens, antimicrobial resistant genes, and the role of the human microbiome. The studies highlighted in this review demonstrate the need for further research to better understand bioaerosol exposure-response relationships in the context of extrinsic and intrinsic factors, antibiotic-resistant genes, viral pathogens, and the human microbiome to help inform effective interventions that improve respiratory health among dairy farmers.
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Affiliation(s)
- J Seidel
- Department of Environmental and Radiological Health Sciences, Colorado State University, 1681 Campus Delivery, Fort Collins, CO, 80523-1681, USA
| | - S Magzamen
- Department of Environmental and Radiological Health Sciences, Colorado State University, 1681 Campus Delivery, Fort Collins, CO, 80523-1681, USA
| | - Y H Wang
- Department of Environmental and Radiological Health Sciences, Colorado State University, 1681 Campus Delivery, Fort Collins, CO, 80523-1681, USA
| | - V Neujahr
- Department of Environmental and Radiological Health Sciences, Colorado State University, 1681 Campus Delivery, Fort Collins, CO, 80523-1681, USA
| | - J W Schaeffer
- Department of Environmental and Radiological Health Sciences, Colorado State University, 1681 Campus Delivery, Fort Collins, CO, 80523-1681, USA.
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2
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O' Brien C, Kingston L, Plant BJ, Coffey A. Lung Health in Farming: A Scoping Review. J Agromedicine 2023; 28:335-345. [PMID: 36773027 DOI: 10.1080/1059924x.2023.2178573] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/12/2023]
Abstract
OBJECTIVE Lung disease is now recognized as an associated occupational hazard among farming and agricultural communities, however limited research surrounds lung health knowledge within our farming population. It is clear from this limited lack of knowledge that farming practices, perceptions and ideas relating to lung health are yet to be uncovered. This scoping review was conducted to identify what is known about lung health within farming and agricultural communities globally and to map the available evidence relating to lung health and lung health decline within this population. The objectives of this review were (1) focus on available lung health research from a global perspective specific to farming and agriculture relating to occupational lung exposures and (2) consolidate current knowledge, clearly identifying gaps within the literature. METHODS This systematic scoping review of the literature is guided by the Joanna Briggs Institute Methodology framework. There were 22 studies eligible for inclusion within the scoping review, providing an up-to-date review of research conducted on lung health and lung disease in farming occupations. RESULTS Results were grouped into three categories emerging from included studies: (1) focused on the prevalence of respiratory symptoms/disease within farming and agricultural occupations, (2) measurements of dust and particulate matter and correlating these with respiratory conditions, (3) common respiratory conditions linked to a decline in lung health among farming and agricultural occupations. Results identified no study focused on or referred to lung health, lung health knowledge or lung health awareness as an outcome, with all studies focusing on respiratory symptoms, development of lung disease and the common occupational hazards this population are exposed to. CONCLUSION This scoping review demonstrates the lack of literature to specifically map available evidence relating to lung health and farming occupations. Many respiratory symptoms and conditions can arise directly and indirectly from agricultural environments, however many of these cases could be prevented by lung health knowledge within the farming population. The results of this scoping review will be used to inform knowledge, awareness, education, health promotion and future research within this population.
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Affiliation(s)
- Ciara O' Brien
- Department of Nursing and Health Care Sciences, Munster Technological University, Kerry, Ireland.,Department of Nursing and Midwifery, Faculty of Education and Health Sciences, University of Limerick, Limerick, Ireland
| | - Liz Kingston
- Department of Nursing and Midwifery, Faculty of Education and Health Sciences, University of Limerick, Limerick, Ireland
| | - Barry J Plant
- Department of Medicine, University College Cork, Cork, Ireland
| | - Alice Coffey
- Department of Nursing and Midwifery, Faculty of Education and Health Sciences, University of Limerick, Limerick, Ireland
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3
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MacKinnon M, Barrick K, Lévesque LE, Liss G, Tarlo SM, Lougheed MD. Linkage of administrative and compensation databases for work-related asthma surveillance in Ontario: A proof of concept study. CANADIAN JOURNAL OF RESPIRATORY, CRITICAL CARE, AND SLEEP MEDICINE 2023. [DOI: 10.1080/24745332.2022.2161025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Madison MacKinnon
- Asthma Research Unit, Kingston Health Sciences Centre, Kingston, Ontario, Canada
- Department of Medicine, Queen’s University, Kingston, Ontario, Canada
| | - Kendra Barrick
- Department of Family Medicine, University of Calgary, Calgary, Alberta
| | - Linda E. Lévesque
- Department of Public Health Sciences, Queen’s University, Kingston, Ontario, Canada
- Institute for Clinical Evaluative Sciences, Toronto, Ontario, Canada
| | - Gary Liss
- Department of Medicine, Dalla Lana School of Public Health, University of Toronto
| | - Susan M. Tarlo
- Department of Medicine, Dalla Lana School of Public Health, University of Toronto
- Respiratory Division, University Health Network, Toronto, Ontario, Canada
| | - M. Diane Lougheed
- Asthma Research Unit, Kingston Health Sciences Centre, Kingston, Ontario, Canada
- Department of Medicine, Queen’s University, Kingston, Ontario, Canada
- Department of Public Health Sciences, Queen’s University, Kingston, Ontario, Canada
- Institute for Clinical Evaluative Sciences, Toronto, Ontario, Canada
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4
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Jouneau S, Chapron A, Ropars C, Marette S, Robert AM, Gouyet T, Belleguic C, Rochefort-Morel C, Guillot S, Mailloux C, Desrues B, Viel JF. Prevalence and risk factors of asthma in dairy farmers: Ancillary analysis of AIRBAg. ENVIRONMENTAL RESEARCH 2022; 214:114145. [PMID: 35998695 DOI: 10.1016/j.envres.2022.114145] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/17/2021] [Revised: 07/07/2022] [Accepted: 08/16/2022] [Indexed: 06/15/2023]
Abstract
BACKGROUND Prolonged occupational agricultural exposure is associated with an increase in asthma diagnosis. This study aimed to identify the prevalence and risk factors for asthma in dairy farmers. METHODS AIRBAg was a cross-sectional study including 1203 representative dairy farmers. They completed a self-administered questionnaire and underwent a health respiratory check-up. Referral to a pulmonologist was made for any participant with wheezing, dyspnoea, chronic bronchitis, a chronic cough or a FEV1/FEV6 ratio<80%. They underwent further examinations such as spirometry with a reversibility test. Controls (non-asthmatic dairy farmers and non-farm employees) were matched to each asthma case for sex and age (±5 years). The odds ratios (OR) between asthma and different risk factors were estimated using conditional multivariate logistic regression models. RESULTS Active asthma was diagnosed in 107 (8.9%) farmers. Compared with control dairy farmers, there was a positive association with family history of allergy (OR = 8.68; 95% CI [4.26-17.69]), personal history of eczema (OR = 3.39; 95% CI [1.61-7.13]), hay manipulation (OR = 5.36, 95% CI [1.59-18.01]), and a negative association with farm area (OR = 0.92; 95% CI [0.85-0.99]) and handling treated seeds (OR = 0.47; 95% CI [0.23-0.95]). Compared with control non-farm employees, there was a positive association between asthma and family history of allergy (OR = 95.82, 95% CI [12.55-731.47]). CONCLUSIONS The prevalence of active asthma in dairy farmers was somewhat higher than the rate observed in the general population but may be controlled by reducing exposure to airborne organic contaminants through occupational adaptions on farms.
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Affiliation(s)
- Stéphane Jouneau
- Univ Rennes, CHU Rennes, Department of Respiratory Medicine, F-35033, Rennes, France; Univ Rennes, CHU Rennes, Inserm, EHESP, Irset (Institut de Recherche en Santé, Environnement et Travail) - UMR_S 1085, F-35000, Rennes, France
| | - Anthony Chapron
- Univ Rennes, CHU Rennes, Inserm, EHESP, Irset (Institut de Recherche en Santé, Environnement et Travail) - UMR_S 1085, F-35000, Rennes, France; Univ Rennes, CHU Rennes, Department of General Practice, F-35000, Rennes, France; INSERM, CIC-1414, Primary Care Research Team, F-35000, Rennes, France.
| | - Cécile Ropars
- Univ Rennes, CHU Rennes, Department of Respiratory Medicine, F-35033, Rennes, France
| | - Solenne Marette
- Univ Rennes, CHU Rennes, Department of Occupational Pathology, University Hospital, F-35033, Rennes, France
| | - Ange-Marie Robert
- Univ Rennes, CHU Rennes, Department of Clinical Research, F-35033, Rennes, France
| | - Thomas Gouyet
- Univ Rennes, CHU Rennes, Department of Occupational Pathology, University Hospital, F-35033, Rennes, France
| | - Chantal Belleguic
- Univ Rennes, CHU Rennes, Department of Respiratory Medicine, F-35033, Rennes, France
| | | | - Stéphanie Guillot
- Univ Rennes, CHU Rennes, Department of Pulmonary Function Tests, F-35033, Rennes, France
| | - Carole Mailloux
- Mutualité Sociale Agricole des Portes de Bretagne, F-35170, Bruz, France
| | - Benoît Desrues
- Univ Rennes, CHU Rennes, Department of Respiratory Medicine, F-35033, Rennes, France; INSERM, U1242-COSS, CLCC Eugène Marquis, Rennes 1 University, F-35000, Rennes, France
| | - Jean-François Viel
- Univ Rennes, CHU Rennes, Inserm, EHESP, Irset (Institut de Recherche en Santé, Environnement et Travail) - UMR_S 1085, F-35000, Rennes, France; Univ Rennes, CHU Rennes, Department of Epidemiology and Public Health, F-35033, Rennes, France
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5
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Puvvula J, Baccaglini L, Johnson A, Du Y, Bell JE, Rautiainen RH. Prevalence and Risk Factors for Pulmonary Conditions among Farmers and Ranchers in the Central United States. J Agromedicine 2022; 27:378-390. [PMID: 35026966 DOI: 10.1080/1059924x.2021.2025180] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
This study was conducted to evaluate the prevalence and risk factors for work-related respiratory conditions (asthma, farmer's lung, sinusitis, rhinitis, and environmental allergies, diagnosed by a physician) among farm and ranch operators in the central US. A survey was conducted by the Central States Center for Agricultural Safety and Health (CS-CASH) in 2018, focusing on work-related injuries, illnesses, exposures, and preventive measures in a seven-state region (Iowa, Kansas, Minnesota, Missouri, Nebraska, North Dakota, and South Dakota). Farms and ranches (n = 16,818) with an email address and annual sales exceeding $5,000 were randomly selected for the survey. Agricultural production and weather data were merged with survey responses. The relationship between exposures and respiratory conditions was analyzed using generalized estimating equations. We received responses from 3,268 agricultural operations (19% response rate) containing information on 4,064 individual operators. The life-time prevalence of (any) respiratory conditions among farm/ranch operators was 18%. Risk factors for respiratory conditions included exposures to grain/hay/feed dust (OR 2.41), animal confinement dust (OR 1.57), field/road dust (OR 2.11), manure/silage gasses (OR 1.66), anhydrous ammonia (OR 1.51), fuels/solvents/paints (OR 1.92), older age group >70 vs. <43 (OR 1.40), female gender (OR 1.82), and being primary vs. third operator (OR 1.61). Farmers and ranchers have a high prevalence of respiratory conditions associated with dust and gas exposures at work. More effective protective measures are needed using the hierarchy of controls, including improved use of respiratory protection.
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Affiliation(s)
- Jagadeesh Puvvula
- Department of Environmental, Agricultural and Occupational Health, College of Public Health, University of Nebraska Medical Center, Omaha, Nebraska, USA
| | - Lorena Baccaglini
- Department of Epidemiology, College of Public Health, University of Nebraska Medical Center, Omaha, Nebraska, USA
| | - Anthony Johnson
- Department of Environmental, Agricultural and Occupational Health, College of Public Health, University of Nebraska Medical Center, Omaha, Nebraska, USA
| | - Yi Du
- Department of Epidemiology, College of Public Health, University of Nebraska Medical Center, Omaha, Nebraska, USA
| | - Jesse E Bell
- Department of Environmental, Agricultural and Occupational Health, College of Public Health, University of Nebraska Medical Center, Omaha, Nebraska, USA
| | - Risto H Rautiainen
- Department of Environmental, Agricultural and Occupational Health, College of Public Health, University of Nebraska Medical Center, Omaha, Nebraska, USA
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Sigsgaard T, Basinas I, Doekes G, de Blay F, Folletti I, Heederik D, Lipinska-Ojrzanowska A, Nowak D, Olivieri M, Quirce S, Raulf M, Sastre J, Schlünssen V, Walusiak-Skorupa J, Siracusa A. Respiratory diseases and allergy in farmers working with livestock: a EAACI position paper. Clin Transl Allergy 2020; 10:29. [PMID: 32642058 PMCID: PMC7336421 DOI: 10.1186/s13601-020-00334-x] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Accepted: 06/11/2020] [Indexed: 12/13/2022] Open
Abstract
Farmers constitute a large professional group worldwide. In developed countries farms tend to become larger, with a concentration of farm operations. Animal farming has been associated with negative respiratory effects such as work-related asthma and rhinitis. However, being born and raised or working on a farm reduces the risk of atopic asthma and rhinitis later in life. A risk of chronic bronchitis and bronchial obstruction/COPD has been reported in confinement buildings and livestock farmers. This position paper reviews the literature linking exposure information to intensive animal farming and the risk of work-related respiratory diseases and focuses on prevention. Animal farming is associated with exposure to organic dust containing allergens and microbial matter including alive microorganisms and viruses, endotoxins and other factors like irritant gases such as ammonia and disinfectants. These exposures have been identified as specific agents/risk factors of asthma, rhinitis, chronic bronchitis, COPD and reduced FEV1. Published studies on dust and endotoxin exposure in livestock farmers do not show a downward trend in exposure over the last 30 years, suggesting that the workforce in these industries is still overexposed and at risk of developing respiratory disease. In cases of occupational asthma and rhinitis, avoidance of further exposure to causal agents is recommended, but it may not be obtainable in agriculture, mainly due to socio-economic considerations. Hence, there is an urgent need for focus on farming exposure in order to protect farmers and others at work in these and related industries from developing respiratory diseases and allergy.
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Affiliation(s)
- T Sigsgaard
- Department of Environment Occupation & Health, Dept of Public Health, Danish Ramazzini Centre, Aarhus University, Bartholins Allé 2, Build. 1260, 8000 Aarhus C, Denmark
| | - I Basinas
- Institute of Occupational Medicine, Edinburgh, UK
| | - G Doekes
- Division of Environmental Epidemiology, Institute for Risk Assessment Sciences, Utrecht University, Utrecht, The Netherlands
| | - F de Blay
- Division of Asthma and Allergy, Department of Chest Diseases, University Hospital, Fédération de Médecine Translationnelle de Strasbourg, Strasbourg University, Strasbourg, France
| | - I Folletti
- Occupational Medicine, Terni Hospital, University of Perugia, Perugia, Italy
| | - D Heederik
- Division of Environmental Epidemiology, Institute for Risk Assessment Sciences, Utrecht University, Utrecht, The Netherlands
| | - A Lipinska-Ojrzanowska
- Department of Occupational Diseases and Environmental Health, Nofer Institute of Occupational Medicine, Lodz, Poland
| | - D Nowak
- Institute and Clinic for Occupational, Social and Environmental Medicine, University Hospital, Ludwig Maximilian University, Munich, Germany.,Comprehensive Pneumology Center Munich, Member DZL, German Centre for Lung Research, Munich, Germany
| | - M Olivieri
- Unit of Occupational Medicine, Department of Diagnostics and Public Health, University of Verona, Verona, Italy
| | - S Quirce
- Department of Allergy, Hospital La Paz Institute for Health Research (IdiPAZ) and CIBER de Enfermedades Respiratorias (CIBERES), Madrid, Spain
| | - M Raulf
- IPA Institute for Prevention and Occupational Medicine of the German Social Accident Insurance, Institute of the Ruhr-Universität Bochum, Bochum, Germany
| | - J Sastre
- Department of Allergy, Fundación Jiménez Díaz, CIBER de Enfermedades Respiratorias (Ciberes), Madrid, Spain
| | - V Schlünssen
- Department of Environment Occupation & Health, Dept of Public Health, Danish Ramazzini Centre, Aarhus University, Bartholins Allé 2, Build. 1260, 8000 Aarhus C, Denmark
| | - J Walusiak-Skorupa
- Department of Occupational Diseases and Environmental Health, Nofer Institute of Occupational Medicine, Lodz, Poland
| | - A Siracusa
- Formerly Department of Clinical and Experimental Medicine, University of Perugia, Perugia, Italy
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7
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Liu D, Wagner JG, Harkema JR, Gerlofs-Nijland ME, Pinelli E, Folkerts G, Vandebriel RJ, Cassee FR. Livestock farm particulate matter enhances airway inflammation in mice with or without allergic airway disease. World Allergy Organ J 2020; 13:100114. [PMID: 32256941 PMCID: PMC7132261 DOI: 10.1016/j.waojou.2020.100114] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Revised: 02/17/2020] [Accepted: 03/02/2020] [Indexed: 01/21/2023] Open
Abstract
Effects of airborne biological particulate matter (BioPM; from livestock farms) on the pulmonary airways are not well studied. The aim of the present study was to investigate whether fine (<2.5 μm) BioPM derived from indoor animal stables (two chicken and two pig farms) could modify airway allergic responses by using a mouse model of allergic airway disease (allergic asthma). After intraperitoneal ovalbumin (OVA) sensitization mice were either intranasally challenged with OVA (allergic mice) or saline (non-allergic controls). Mice were also intranasally treated with farm-derived BioPM. Bronchoalveolar lavage fluid (BALF), blood and lung tissues were collected one day after intranasal exposure. BioPM from all the farms caused an acute neutrophilic inflammatory response in non-allergic mice. In allergic mice, BioPM derived from pig farm 2 induced a larger cellular inflammatory response than other farm-derived BioPM. All farm BioPM elicited Th17 cytokine (Interleukin (IL)-23) production except chicken farm 2, whereas Th2 cytokine (IL-5) increase was only induced by BioPM collected from chicken farm 2. These results indicate the exposure of BioPM from chicken and pig farms may cause the enhancement of airway allergic response in mice following exposure to OVA. More variation in the responses between farms was observed in allergic than non-allergic mice. Understanding the source and doses of BioPM that may affect the airway allergic response could help susceptible individuals to avoid worsening their respiratory diseases.
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Affiliation(s)
- Dingyu Liu
- National Institute for Public Health and the Environment, Bilthoven, 3720 BA, the Netherlands.,Institute for Risk Assessment Sciences, Utrecht University, Utrecht, 3508 TC, the Netherlands
| | - James G Wagner
- Pathobiology and Diagnostic Investigation, College of Veterinary Medicine, Michigan State University, East Lansing, MI 48824, USA
| | - Jack R Harkema
- Pathobiology and Diagnostic Investigation, College of Veterinary Medicine, Michigan State University, East Lansing, MI 48824, USA
| | | | - Elena Pinelli
- National Institute for Public Health and the Environment, Bilthoven, 3720 BA, the Netherlands
| | - Gert Folkerts
- Department of Pharmacology and Pathophysiology, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, Utrecht, 3508 TC, the Netherlands
| | - Rob J Vandebriel
- National Institute for Public Health and the Environment, Bilthoven, 3720 BA, the Netherlands
| | - Flemming R Cassee
- National Institute for Public Health and the Environment, Bilthoven, 3720 BA, the Netherlands.,Institute for Risk Assessment Sciences, Utrecht University, Utrecht, 3508 TC, the Netherlands
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8
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Associations Between Bioaerosol Exposures and Lung Function Changes Among Dairy Workers in Colorado. J Occup Environ Med 2020; 62:424-430. [DOI: 10.1097/jom.0000000000001856] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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9
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Johnson AN, Harkema JR, Nelson AJ, Dickinson JD, Kalil J, Duryee MJ, Thiele GM, Kumar B, Singh AB, Gaurav R, Glover SC, Tang Y, Romberger DJ, Kielian T, Poole JA. MyD88 regulates a prolonged adaptation response to environmental dust exposure-induced lung disease. Respir Res 2020; 21:97. [PMID: 32321514 PMCID: PMC7178993 DOI: 10.1186/s12931-020-01362-8] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2020] [Accepted: 04/14/2020] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Environmental organic dust exposures enriched in Toll-like receptor (TLR) agonists can reduce allergic asthma development but are associated with occupational asthma and chronic bronchitis. The TLR adaptor protein myeloid differentiation factor88 (MyD88) is fundamental in regulating acute inflammatory responses to organic dust extract (ODE), yet its role in repetitive exposures is unknown and could inform future strategies. METHODS Wild-type (WT) and MyD88 knockout (KO) mice were exposed intranasally to ODE or saline daily for 3 weeks (repetitive exposure). Repetitively exposed animals were also subsequently rested with no treatments for 4 weeks followed by single rechallenge with saline/ODE. RESULTS Repetitive ODE exposure induced neutrophil influx and release of pro-inflammatory cytokines and chemokines were profoundly reduced in MyD88 KO mice. In comparison, ODE-induced cellular aggregates, B cells, mast cell infiltrates and serum IgE levels remained elevated in KO mice and mucous cell metaplasia was increased. Expression of ODE-induced tight junction protein(s) was also MyD88-dependent. Following recovery and then rechallenge with ODE, inflammatory mediators, but not neutrophil influx, was reduced in WT mice pretreated with ODE coincident with increased expression of IL-33 and IL-10, suggesting an adaptation response. Repetitively exposed MyD88 KO mice lacked inflammatory responsiveness upon ODE rechallenge. CONCLUSIONS MyD88 is essential in mediating the classic airway inflammatory response to repetitive ODE, but targeting MyD88 does not reduce mucous cell metaplasia, lymphocyte influx, or IgE responsiveness. TLR-enriched dust exposures induce a prolonged adaptation response that is largely MyD88-independent. These findings demonstrate the complex role of MyD88-dependent signaling during acute vs. chronic organic dust exposures.
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Affiliation(s)
- Amber N. Johnson
- grid.266813.80000 0001 0666 4105Department of Internal Medicine, University of Nebraska Medical Center, 985990 Nebraska Medical Center, Omaha, NE 68198-5990 USA
| | - Jack R. Harkema
- grid.17088.360000 0001 2150 1785Pathobiology & Diagnostic Investigation, Institute for Integrative Toxicology, College of Veterinary Medicine, Michigan State University, East Lansing, MI USA
| | - Amy J. Nelson
- grid.266813.80000 0001 0666 4105Department of Internal Medicine, University of Nebraska Medical Center, 985990 Nebraska Medical Center, Omaha, NE 68198-5990 USA
| | - John D. Dickinson
- grid.266813.80000 0001 0666 4105Department of Internal Medicine, University of Nebraska Medical Center, 985990 Nebraska Medical Center, Omaha, NE 68198-5990 USA
| | - Julianna Kalil
- grid.266813.80000 0001 0666 4105Department of Internal Medicine, University of Nebraska Medical Center, 985990 Nebraska Medical Center, Omaha, NE 68198-5990 USA
| | - Michael J. Duryee
- grid.266813.80000 0001 0666 4105Department of Internal Medicine, University of Nebraska Medical Center, 985990 Nebraska Medical Center, Omaha, NE 68198-5990 USA ,Veterans Affairs Nebraska-Western Iowa Health Care System, Research Service, Omaha, NE USA
| | - Geoffrey M. Thiele
- grid.266813.80000 0001 0666 4105Department of Internal Medicine, University of Nebraska Medical Center, 985990 Nebraska Medical Center, Omaha, NE 68198-5990 USA ,Veterans Affairs Nebraska-Western Iowa Health Care System, Research Service, Omaha, NE USA
| | - Balawant Kumar
- grid.266813.80000 0001 0666 4105Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE USA
| | - Amar B. Singh
- Veterans Affairs Nebraska-Western Iowa Health Care System, Research Service, Omaha, NE USA ,grid.266813.80000 0001 0666 4105Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE USA
| | - Rohit Gaurav
- grid.266813.80000 0001 0666 4105Department of Internal Medicine, University of Nebraska Medical Center, 985990 Nebraska Medical Center, Omaha, NE 68198-5990 USA
| | - Sarah C. Glover
- grid.410721.10000 0004 1937 0407Department of Medicine, University of Mississippi Medical Center, Jackson, MS USA
| | - Ying Tang
- grid.15276.370000 0004 1936 8091Department of Medicine, University of Florida, Gainesville, FL USA
| | - Debra J. Romberger
- grid.266813.80000 0001 0666 4105Department of Internal Medicine, University of Nebraska Medical Center, 985990 Nebraska Medical Center, Omaha, NE 68198-5990 USA ,Veterans Affairs Nebraska-Western Iowa Health Care System, Research Service, Omaha, NE USA
| | - Tammy Kielian
- grid.266813.80000 0001 0666 4105Department of Microbiology and Pathology, University of Nebraska Medical Center, Omaha, NE USA
| | - Jill A. Poole
- grid.266813.80000 0001 0666 4105Department of Internal Medicine, University of Nebraska Medical Center, 985990 Nebraska Medical Center, Omaha, NE 68198-5990 USA
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10
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Abstract
PURPOSE OF REVIEW Farmers are routinely exposed to organic dusts and aeroallergens that can have adverse respiratory health effects including asthma. Horses are farm-reared large animals with similar exposures and can develop equine asthma syndrome (EAS). This review aims to compare the etiology, pathophysiology, and immunology of asthma in horses compared to farmers and highlights the horse as a potential translational animal model for organic dust-induced asthma in humans. RECENT FINDINGS Severe EAS shares many clinical and pathological features with various phenotypes of human asthma including allergic, non-allergic, late onset, and severe asthma. EAS disease features include variable airflow obstruction, cough, airway hyperresponsiveness, airway inflammation/remodeling, neutrophilic infiltrates, excess mucus production, and chronic innate immune activation. Severe EAS is a naturally occurring and biologically relevant, translational animal disease model that could contribute to a more thorough understanding of the environmental and immunologic factors contributing to organic dust-induced asthma in humans.
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Affiliation(s)
- M. Katie Sheats
- Comparative Medicine Institute, Department of Clinical Sciences, North Carolina State University College of Veterinary Medicine, Raleigh, NC 27607, USA
| | - Kaori U. Davis
- Comparative Medicine Institute, Department of Clinical Sciences, North Carolina State University College of Veterinary Medicine, Raleigh, NC 27607, USA
| | - Jill A. Poole
- Division of Pulmonary, Critical Care, Sleep and Allergy, Department of Medicine, University of Nebraska Medical Center, 985990 Nebraska Medical Center, Omaha, NE 68198-5990, USA
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11
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Kelly KJ, Poole JA. Pollutants in the workplace: Effect on occupational asthma. J Allergy Clin Immunol 2019; 143:2014-2015. [PMID: 31029774 PMCID: PMC10907957 DOI: 10.1016/j.jaci.2019.04.013] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2019] [Revised: 04/01/2019] [Accepted: 04/23/2019] [Indexed: 12/22/2022]
Affiliation(s)
- Kevin J Kelly
- Department of Pediatrics, Division of Allergy/Immunology/Rheumatology, University of North Carolina, Chapel Hill, NC
| | - Jill A Poole
- Department of Medicine, Section of Allergy, Division of Pulmonary, Critical Care, Sleep and Allergy, University of Nebraska Medical Center, Omaha, Neb.
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Warren KJ, Dickinson JD, Nelson AJ, Wyatt TA, Romberger DJ, Poole JA. Ovalbumin-sensitized mice have altered airway inflammation to agriculture organic dust. Respir Res 2019; 20:51. [PMID: 30845921 PMCID: PMC6407255 DOI: 10.1186/s12931-019-1015-0] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2018] [Accepted: 02/22/2019] [Indexed: 12/13/2022] Open
Abstract
Agriculture exposures are associated with reducing the risk of allergy and asthma in early life; yet, repeated exposures later in life are associated with chronic bronchitis and obstructive pulmonary diseases. The objective of this study was to investigate the airway inflammatory response to organic dust extract (ODE) in mice with established ovalbumin (OVA)-induced experimental asthma. C57BL/6 mice were either OVA sensitized/aerosol-exposed or saline (Sal) sensitized/aerosol-challenged. Both groups were then subsequently challenged once with intranasal saline or swine confinement ODE to obtain 4 treatment groups of Sal-Sal, Sal-ODE, OVA-Sal, and OVA-ODE. Airway hyper-responsiveness (AHR) to methacholine, bronchiolar lavage fluid, lung tissues, and serum were collected. Intranasal inhalation of ODE in OVA-treated (asthmatic) mice (OVA-ODE) increased AHR and total cellular influx marked by elevated neutrophil and eosinophil counts. Flow cytometry analysis further demonstrated that populations of CD11chi dendritic cells (DC), CD3+ T cells, CD19+ B cells, and NKp46+ group 3 innate lymphoid cells (ILC3) were increased in lavage fluid of OVA-ODE mice as compared to ODE or OVA alone. Alveolar macrophages, DC, and T cells were significantly increased with co-exposure to OVA-ODE as compared to OVA alone. Lung ILC2 and ILC3 were only increased in OVA-Sal mice. Cytokine/chemokine levels varied with exposure to OVA-ODE reflecting an additive mixture of the pro- and allergic-inflammatory profiles. Collectively, ODE increased airway inflammatory cells and chemotactic mediator release in allergic (OVA) sensitized mice to suggest that persons with allergy/asthma be identified and warned prior to the occupational exposure of potentially worsening airway disease.
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Affiliation(s)
- Kristi J. Warren
- Pulmonary, Critical Care, Sleep & Allergy Division, Department of Internal Medicine, University of Nebraska Medical Center, 985900 Nebraska Medical Center, Omaha, NE 68198-5910 USA
| | - John D. Dickinson
- Pulmonary, Critical Care, Sleep & Allergy Division, Department of Internal Medicine, University of Nebraska Medical Center, 985900 Nebraska Medical Center, Omaha, NE 68198-5910 USA
| | - Amy J. Nelson
- Pulmonary, Critical Care, Sleep & Allergy Division, Department of Internal Medicine, University of Nebraska Medical Center, 985900 Nebraska Medical Center, Omaha, NE 68198-5910 USA
| | - Todd A. Wyatt
- Pulmonary, Critical Care, Sleep & Allergy Division, Department of Internal Medicine, University of Nebraska Medical Center, 985900 Nebraska Medical Center, Omaha, NE 68198-5910 USA
- Veterans Affairs Nebraska-Western Iowa Health Care System, Omaha, NE 68105 USA
- Department of Environmental, Agricultural, and Occupational Health, University of Nebraska Medical Center, Omaha, NE 68198 USA
| | - Debra J. Romberger
- Pulmonary, Critical Care, Sleep & Allergy Division, Department of Internal Medicine, University of Nebraska Medical Center, 985900 Nebraska Medical Center, Omaha, NE 68198-5910 USA
- Veterans Affairs Nebraska-Western Iowa Health Care System, Omaha, NE 68105 USA
| | - Jill A. Poole
- Pulmonary, Critical Care, Sleep & Allergy Division, Department of Internal Medicine, University of Nebraska Medical Center, 985900 Nebraska Medical Center, Omaha, NE 68198-5910 USA
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Arroyo AJC, Robinson LB, Downing NL, Camargo CA. Occupational exposures and asthma prevalence among US farmworkers: National Agricultural Workers Survey, 2003-2014. THE JOURNAL OF ALLERGY AND CLINICAL IMMUNOLOGY. IN PRACTICE 2018; 6:2135-2138.e2. [PMID: 29626636 PMCID: PMC6170719 DOI: 10.1016/j.jaip.2018.03.006] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/22/2018] [Revised: 02/27/2018] [Accepted: 03/22/2018] [Indexed: 11/27/2022]
Affiliation(s)
- Anna J Chen Arroyo
- Division of Rheumatology, Immunology, and Allergy, Brigham and Women's Hospital, Boston, Mass.
| | - Lacey B Robinson
- Division of Rheumatology, Allergy and Immunology, Massachusetts General Hospital, Boston, Mass
| | - N Lance Downing
- Biomedical Informatics Research, Department of Medicine, Stanford University, Stanford, Calif
| | - Carlos A Camargo
- Department of Emergency Medicine, Massachusetts General Hospital, Harvard Medical School, Boston, Mass
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Moscato G. Occupational Allergic Airway Disease. CURRENT OTORHINOLARYNGOLOGY REPORTS 2017. [DOI: 10.1007/s40136-017-0170-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Lifetime allergic rhinitis prevalence among US primary farm operators: findings from the 2011 Farm and Ranch Safety survey. Int Arch Occup Environ Health 2017; 90:507-515. [PMID: 28341882 DOI: 10.1007/s00420-017-1217-z] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2016] [Accepted: 03/14/2017] [Indexed: 12/31/2022]
Abstract
PURPOSE Allergic rhinitis is associated with decreased quality of life, and reduced workplace performance and productivity. This study investigated the prevalence of lifetime allergic rhinitis and factors associated with allergic rhinitis among US primary farm operators. METHODS The 2011 Farm and Ranch Safety Survey data collected from 11,210 active farm operators were analyzed. Survey respondents were determined to have lifetime allergic rhinitis based on a "yes" response to the question: "Have you ever been told by a doctor, nurse, or other health professional that you had hay fever, seasonal allergies, or allergic rhinitis?" Data were weighted to produce nationally representative estimates. RESULTS An estimated 30.8% of the 2.1 million active farm operators had lifetime allergic rhinitis in 2011. The allergic rhinitis prevalence varied by demographic and farm characteristics. Farm operators with allergic rhinitis were 1.38 (95% CI 1.22-1.56) times more likely to be exposed to pesticides compared with operators with no allergic rhinitis. The association with pesticide exposure for allergic rhinitis and current asthma, and allergic rhinitis alone was statistically significant and greater than that for current asthma alone. CONCLUSION Certain groups of farm operators may be at increased risk of allergic rhinitis. Studies should further investigate the association of allergic rhinitis with specific pesticide exposure.
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Casey ML, Mazurek JM. Respirator Use Among US Farm Operators With Asthma: Results From the 2011 Farm and Ranch Safety Survey. J Agromedicine 2017; 22:78-88. [PMID: 28095135 PMCID: PMC5510023 DOI: 10.1080/1059924x.2017.1282904] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
OBJECTIVE The purpose of this study was to estimate the national prevalence of respirator use among farm operators with farm work-related asthma and factors associated with respirator use. METHODS The authors examined the 2011 Farm and Ranch Safety Survey, a national survey collected from 11,210 actively farming farm operators in the United States. Adjusted prevalence ratios (aPORs) of respirator use were calculated by demographic characteristics, farm characteristics, asthma characteristics, and selected exposures and hazards. RESULTS Among the estimated 2.2 million farm operators in 2011, 35.7% reported using a respirator in the past 12 months. Respirator use was significantly (P < .05) associated with age, marital status, sex, smoking status, farm value of sales, farm type, farm acreage, and geographic region. Operators who work with pesticides were 3.5 times more likely to use respirator than those who did not work with pesticides (P < .0001). Among those with current asthma, 60.8% of operators with farm work-related asthma used respirators compared with 44.4% of operators with non-farm work-related asthma (P = .03). Farm operators with farm work-related asthma who had an asthma attack at work were 11.3 times more likely to report respirator use than those who did not have an asthma attack at work (P = .03). CONCLUSIONS Personal protective equipment, including respirators, is an approach to reducing respiratory exposures in agricultural settings, in particular among those with farm work-related asthma. Education for respirator use and evaluation for respirator tolerance should be considered.
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Affiliation(s)
- Megan L Casey
- a Surveillance Branch, Respiratory Health Division , National Institute for Occupational Safety and Health, Centers for Disease Control and Prevention , Morgantown , West Virginia , USA
| | - Jacek M Mazurek
- a Surveillance Branch, Respiratory Health Division , National Institute for Occupational Safety and Health, Centers for Disease Control and Prevention , Morgantown , West Virginia , USA
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Taj-Aldeen SJ, Chandra P, Denning DW. Burden of fungal infections in Qatar. Mycoses 2016; 58 Suppl 5:51-7. [PMID: 26449507 DOI: 10.1111/myc.12386] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2015] [Revised: 05/15/2015] [Accepted: 05/20/2015] [Indexed: 12/31/2022]
Abstract
Few estimates of fungal disease frequency have been attempted in the Middle East. We have estimated the burden of fungal infections in Qatar. The aim of the study was to compute and determine the burden of serious fungal infections, in an attempt to estimate fungal disease frequency, which has not previously been attempted in this country. Disease statistics were collected from the Microbiology laboratory database and from 2011 WHO statistics. The data are expressed per 100,000 populations. The reported cases of candidaemia rose to 288 with an estimated rate of 15.4/100,000. A real increase in the burden of candidaemia was found over that previously reported (12.9/100,000) for the years 2004-2009. Candida peritonitis was estimated in 8.02 cases/100,000 population. Recurrent (≥4 year(-1) ) vaginal infections affect at least 32,782 women with a rate of 3506/100,000 inhabitants. Severe asthma with fungal sensitisation affected 1486 people, allergic bronchopulmonary aspergillosis 1126 people and chronic pulmonary aspergillosis 176 people. Rhinosinusitis, mucormycosis and Fusarium infection occurred at rates of 2.31, 1.23, 1.86 cases/100,000 respectively. The estimated rate of invasive aspergillosis was very low (0.6/100,000). Low rates of Cryptococcus meningitis and Pneumocystis pneumonia are attributable to low HIV infection rates. In conclusion, fungal infections are increasingly reported, especially candidaemia. Surveillance and guidelines are needed to optimise care and management of common fungal infections. In addition, a fungal registry system needs development for surveillance.
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Affiliation(s)
- Saad J Taj-Aldeen
- Mycology Unit, Microbiology Division, Department of Laboratory Medicine and Pathology, Doha, Qatar
| | - Prem Chandra
- Medical Research Department, Hamad Medical Corporation, Doha, Qatar
| | - David W Denning
- Manchester Academic Health Science Centre, The National Aspergillosis Centre, University Hospital of South Manchester, The University of Manchester, Manchester, UK
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