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De Roos AJ, Senter JP, Schinasi LH, Huang W, Moore K, Maltenfort M, Forrest C, Henrickson SE, Kenyon CC. Outdoor aeroallergen impacts on asthma exacerbation among sensitized and nonsensitized Philadelphia children. THE JOURNAL OF ALLERGY AND CLINICAL IMMUNOLOGY. GLOBAL 2024; 3:100248. [PMID: 38645670 PMCID: PMC11024998 DOI: 10.1016/j.jacig.2024.100248] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Revised: 12/30/2023] [Accepted: 01/27/2024] [Indexed: 04/23/2024]
Abstract
Background Outdoor aeroallergens, such as pollens and molds, are known triggers of asthma exacerbation; however, few studies have examined children's aeroallergen response based on sensitization. Objective Our aim was to compare the relative impact of aeroallergen levels on asthma exacerbation between pediatric patients with asthma who tested positive or negative for sensitization to particular allergens. Methods A case-crossover design study was conducted to examine associations between outdoor aeroallergen levels and asthma exacerbation events among children living in Philadelphia, Pennsylvania, who were treated within a large pediatric care network. Sensitization to common allergens was characterized in a subset of patients with asthma exacerbation who had undergone skin prick testing (5.5%). Odds ratios (ORs) and 95% CIs were estimated in all patients with asthma exacerbation and in those sensitized or not sensitized to aeroallergens. Results Children who were sensitized to a particular allergen had higher odds of asthma exacerbation with exposure to the allergen (ie, early-season tree pollen, oak tree pollen, early-season weed pollen, and late-season molds) than did all patients with asthma or nonsensitized patients. For example, the association between early-season tree pollen and asthma exacerbation among sensitized children (>90th percentile vs ≤25th, OR = 2.28 [95% CI = 1.23-4.22]) was considerably stronger than that estimated among all patients (OR = 1.34 [95% CI = 1.19-1.50]), and it was also substantially different from the lack of association seen among nonsensitized children (OR = 0.89 [95% CI = 0.51-1.55] [P value for heterogeneity = .03]). Conclusion More prevalent allergy testing may be useful for prevention of asthma exacerbation by informing interventions targeted to sensitized children and tailored for particular aeroallergens.
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Affiliation(s)
- Anneclaire J. De Roos
- Department of Environmental and Occupational Health, Dornsife School of Public Health, Drexel University, Philadelphia, Pa
- Urban Health Collaborative, Dornsife School of Public Health, Drexel University, Philadelphia, Pa
| | - James P. Senter
- Department of Pediatrics, Children's Hospital of Philadelphia, Philadelphia, Pa
| | - Leah H. Schinasi
- Department of Environmental and Occupational Health, Dornsife School of Public Health, Drexel University, Philadelphia, Pa
- Urban Health Collaborative, Dornsife School of Public Health, Drexel University, Philadelphia, Pa
| | - Wanyu Huang
- Department of Epidemiology and Biostatistics, Dornsife School of Public Health, Drexel University, Philadelphia, Pa
| | - Kari Moore
- Urban Health Collaborative, Dornsife School of Public Health, Drexel University, Philadelphia, Pa
| | - Mitchell Maltenfort
- Department of Biomedical and Health Informatics, Children's Hospital of Philadelphia, Philadelphia, Pa
| | - Christopher Forrest
- Department of Pediatrics, Children's Hospital of Philadelphia, Philadelphia, Pa
| | - Sarah E. Henrickson
- Department of Biomedical and Health Informatics, Children's Hospital of Philadelphia, Philadelphia, Pa
- Division of Allergy and Immunology, Children's Hospital of Philadelphia, Philadelphia, Pa
| | - Chén C. Kenyon
- Department of Pediatrics, Children's Hospital of Philadelphia, Philadelphia, Pa
- Department of Pediatrics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pa
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Zárate RA, Bhavnani D, Chambliss S, Hall EM, Zigler C, Cubbin C, Wilkinson M, Matsui EC. Neighborhood-level variability in asthma-related emergency department visits in Central Texas. J Allergy Clin Immunol 2024:S0091-6749(24)00568-2. [PMID: 38851399 DOI: 10.1016/j.jaci.2024.05.024] [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: 11/16/2023] [Revised: 04/15/2024] [Accepted: 05/17/2024] [Indexed: 06/10/2024]
Abstract
BACKGROUND The extent to which incidence rates of asthma-related emergency department (ED) visits vary from neighborhood to neighborhood and predictors of neighborhood-level asthma ED visit burden are not well understood. OBJECTIVE We aimed to describe the census tract-level spatial distribution of asthma-related ED visits in Central Texas and identify neighborhood-level characteristics that explain variability in neighborhood-level asthma ED visit rates. METHODS Conditional autoregressive models were used to examine the spatial distribution of asthma-related ED visit incidence rates across census tracts in Travis County, Texas, and assess the contribution of census tract characteristics to their distribution. RESULTS There were distinct patterns in ED visit incidence rates at the census tract scale. These patterns were largely unexplained by socioeconomic or selected built environment neighborhood characteristics. However, racial and ethnic composition explained 33% of the variability of ED visit incidence rates across census tracts. The census tract predictors of ED visit incidence rates differed by racial and ethnic group. CONCLUSIONS Variability in asthma ED visit incidence rates are apparent at smaller spatial scales. Most of the variability in census tract-level asthma ED visit rates in Central Texas is not explained by racial and ethnic composition or other neighborhood characteristics.
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Affiliation(s)
- Rebecca A Zárate
- Department of Population Health, Dell Medical School, University of Texas at Austin, Austin, Tex; Center for Health and Environment: Education and Research, Dell Medical School, University of Texas at Austin, Austin, Tex
| | - Darlene Bhavnani
- Department of Population Health, Dell Medical School, University of Texas at Austin, Austin, Tex; Center for Health and Environment: Education and Research, Dell Medical School, University of Texas at Austin, Austin, Tex
| | - Sarah Chambliss
- Department of Population Health, Dell Medical School, University of Texas at Austin, Austin, Tex; Center for Health and Environment: Education and Research, Dell Medical School, University of Texas at Austin, Austin, Tex
| | - Emily M Hall
- Center for Health and Environment: Education and Research, Dell Medical School, University of Texas at Austin, Austin, Tex; Department of Women's Health, Dell Medical School, University of Texas at Austin, Austin, Tex
| | - Corwin Zigler
- Center for Health and Environment: Education and Research, Dell Medical School, University of Texas at Austin, Austin, Tex; Department of Statistics and Data Sciences, University of Texas at Austin, Austin, Tex
| | - Catherine Cubbin
- Center for Health and Environment: Education and Research, Dell Medical School, University of Texas at Austin, Austin, Tex; Steve Hicks School of Social Work, University of Texas at Austin, Austin, Tex
| | - Matthew Wilkinson
- Department of Pediatrics, Dell Medical School, University of Texas at Austin, Austin, Tex
| | - Elizabeth C Matsui
- Department of Population Health, Dell Medical School, University of Texas at Austin, Austin, Tex; Center for Health and Environment: Education and Research, Dell Medical School, University of Texas at Austin, Austin, Tex; Department of Pediatrics, Dell Medical School, University of Texas at Austin, Austin, Tex.
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3
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Katz DSW, Zigler CM, Bhavnani D, Balcer-Whaley S, Matsui EC. Pollen and viruses contribute to spatio-temporal variation in asthma-related emergency department visits. ENVIRONMENTAL RESEARCH 2024; 257:119346. [PMID: 38838752 DOI: 10.1016/j.envres.2024.119346] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2024] [Revised: 05/25/2024] [Accepted: 06/03/2024] [Indexed: 06/07/2024]
Abstract
BACKGROUND Asthma exacerbations are an important cause of emergency department visits but much remains unknown about the role of environmental triggers including viruses and allergenic pollen. A better understanding of spatio-temporal variation in exposure and risk posed by viruses and pollen types could help prioritize public health interventions. OBJECTIVE Here we quantify the effects of regionally important Cupressaceae pollen, tree pollen, other pollen types, rhinovirus, seasonal coronavirus, respiratory syncytial virus, and influenza on asthma-related emergency department visits for people living near eight pollen monitoring stations in Texas. METHODS We used age stratified Poisson regression analyses to quantify the effects of allergenic pollen and viruses on asthma-related emergency department visits. RESULTS Young children (<5 years of age) had high asthma-related emergency department rates (24.1 visits/1,000,000 person-days), which were mainly attributed to viruses (51.2%). School-aged children also had high rates (20.7 visits/1,000,000 person-days), which were attributed to viruses (57.0%), Cupressaceae pollen (0.7%), and tree pollen (2.8%). Adults had lower rates (8.1 visits/1,000,000 person-days) which were attributed to viruses (25.4%), Cupressaceae pollen (0.8%), and tree pollen (2.3%). This risk was spread unevenly across space and time; for example, during peak Cuppressaceae season, this pollen accounted for 8.2% of adult emergency department visits near Austin where these plants are abundant, but 0.4% in cities like Houston where they are not; results for other age groups were similar. CONCLUSIONS Although viruses are a major contributor to asthma-related emergency department visits, airborne pollen can explain a meaningful portion of visits during peak pollen season and this risk varies over both time and space because of differences in plant composition.
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Affiliation(s)
- Daniel S W Katz
- The Department of Population Health and Data Sciences, Dell Medical School, University of Texas at Austin, United States; The School of Integrative Plant Science, Cornell University, United States.
| | - Corwin M Zigler
- The Department of Statistics and Data Sciences, Dell Medical School, University of Texas at Austin, United States
| | - Darlene Bhavnani
- The Department of Population Health and Data Sciences, Dell Medical School, University of Texas at Austin, United States
| | - Susan Balcer-Whaley
- The Department of Population Health and Data Sciences, Dell Medical School, University of Texas at Austin, United States
| | - Elizabeth C Matsui
- The Department of Population Health and Data Sciences, Dell Medical School, University of Texas at Austin, United States
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Nieuwenhuijsen M, de Nazelle A, Garcia-Aymerich J, Khreis H, Hoffmann B. Shaping urban environments to improve respiratory health: recommendations for research, planning, and policy. THE LANCET. RESPIRATORY MEDICINE 2024; 12:247-254. [PMID: 37866374 DOI: 10.1016/s2213-2600(23)00329-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Revised: 08/17/2023] [Accepted: 08/24/2023] [Indexed: 10/24/2023]
Abstract
Urban areas carry a large burden of acute (infectious) and chronic respiratory diseases due to environmental conditions such as high levels of air pollution and high population densities. Car-dominated cities often lack walkable areas, which reduces opportunities for physical activity that are fundamentally important for healthy lungs. The already restricted amount of green space available-with often poorly selected plants-could produce pollen and subsequently provoke or worsen allergic diseases. Less affluent neighbourhoods often carry a larger respiratory disease burden. A multisectoral approach with more diverse policy measures and urban innovations is needed to reduce air pollution (eg, low emission zones), to increase public space for walking and cycling (eg, low traffic neighbourhoods, superblocks, 15-minute cities, and car-free cities), and to develop green cities (eg, planting of low-allergy trees). Stricter EU air quality guidelines can push these transformations to improve the respiratory health of citizens. Advocacy by medical respiratory societies can also make an important contribution to such changes.
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Affiliation(s)
- Mark Nieuwenhuijsen
- ISGlobal, Barcelona, Spain; Universitat Pompeu Fabra (UPF), Barcelona, Spain; CIBER Epidemiología y Salud Pública (CIBERESP), Madrid, Spain.
| | - Audrey de Nazelle
- Centre for Environmental Policy, Imperial College London, London, UK
| | - Judith Garcia-Aymerich
- ISGlobal, Barcelona, Spain; Universitat Pompeu Fabra (UPF), Barcelona, Spain; CIBER Epidemiología y Salud Pública (CIBERESP), Madrid, Spain
| | - Haneen Khreis
- MRC Epidemiology Unit, Public Health Modelling Group, University of Cambridge, Cambridge, UK; School of Clinical Medicine, University of Cambridge, Cambridge, UK
| | - Barbara Hoffmann
- Centre for Health and Society, Institute for Occupational, Social and Environmental Medicine, Heinrich-Heine-University of Duesseldorf, Duesseldorf, Germany
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Fuertes E, Jarvis D, Lam H, Davies B, Fecht D, Candeias J, Schmidt-Weber CB, Douiri A, Slovick A, Scala E, Smith TEL, Shamji M, Buters JTM, Cecchi L, Till SJ. Phl p 5 levels more strongly associated than grass pollen counts with allergic respiratory health. J Allergy Clin Immunol 2024; 153:844-851. [PMID: 37995860 DOI: 10.1016/j.jaci.2023.11.011] [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: 12/07/2022] [Revised: 11/01/2023] [Accepted: 11/09/2023] [Indexed: 11/25/2023]
Abstract
BACKGROUND Studies have linked daily pollen counts to respiratory allergic health outcomes, but few have considered allergen levels. OBJECTIVE We sought to assess associations of grass pollen counts and grass allergen levels (Phl p 5) with respiratory allergic health symptoms in a panel of 93 adults with moderate-severe allergic rhinitis and daily asthma hospital admissions in London, United Kingdom. METHODS Daily symptom and medication scores were collected from adult participants in an allergy clinical trial. Daily counts of asthma hospital admissions in the London general population were obtained from Hospital Episode Statistics data. Daily grass pollen counts were measured using a volumetric air sampler, and novel Phl p 5 levels were measured using a ChemVol High Volume Cascade Impactor and ELISA analyses (May through August). Associations between the 2 pollen variables and daily health scores (dichotomized based on within-person 75th percentiles) were assessed using generalized estimating equation logistic models and with asthma hospital admissions using Poisson regression models. RESULTS Daily pollen counts and Phl p 5 levels were each positively associated with reporting a high combined symptom and medication health score in separate models. However, in mutually adjusted models including terms for both pollen counts and Phl p 5 levels, associations remained for Phl p 5 levels (odds ratio [95% CI]: 1.18 [1.12, 1.24]), but were heavily attenuated for pollen counts (odds ratio [95% CI]: 1.00 [0.93, 1.07]). Similar trends were not observed for asthma hospital admissions in London. CONCLUSIONS Grass allergen (Phl p 5) levels are more consistently associated with allergic respiratory symptoms than grass pollen counts.
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Affiliation(s)
- Elaine Fuertes
- National Heart and Lung Institute, Imperial College London, London, United Kingdom; MRC Centre for Environment and Health, Imperial College London, London, United Kingdom.
| | - Debbie Jarvis
- National Heart and Lung Institute, Imperial College London, London, United Kingdom; MRC Centre for Environment and Health, Imperial College London, London, United Kingdom
| | - Holly Lam
- National Heart and Lung Institute, Imperial College London, London, United Kingdom; MRC Centre for Environment and Health, Imperial College London, London, United Kingdom
| | - Bethan Davies
- MRC Centre for Environment and Health, Imperial College London, London, United Kingdom; Small Area Health Statistics Unit, School of Public Health, Imperial College London, London, United Kingdom
| | - Daniela Fecht
- MRC Centre for Environment and Health, Imperial College London, London, United Kingdom; Small Area Health Statistics Unit, School of Public Health, Imperial College London, London, United Kingdom; NIHR Health Protection Research Unit in Chemical Radiation Threats and Hazards, School of Public Health, Imperial College London, London, United Kingdom
| | - Joana Candeias
- Center of Allergy and Environment, Technische Universität München and Helmholtz Center Munich, Member of the German Center for Lung Research (DZL), Munich, Germany
| | - Carsten B Schmidt-Weber
- Center of Allergy and Environment, Technische Universität München and Helmholtz Center Munich, Member of the German Center for Lung Research (DZL), Munich, Germany
| | - Abdel Douiri
- School of Life Course and Population Sciences, King's College London, London, United Kingdom
| | - Anna Slovick
- King's Centre for Lung Health, School of Immunology and Microbial Sciences, King's College London, London, United Kingdom
| | - Enrico Scala
- Clinical and Laboratory Molecular Allergy Unit, IDI IRCCS, Rome, Italy
| | - Thomas E L Smith
- Department of Geography and Environment, London School of Economics and Political Science, London, United Kingdom
| | - Mohamed Shamji
- National Heart and Lung Institute, Imperial College London, London, United Kingdom; NIHR Imperial Biomedical Research Centre, London, United Kingdom
| | - Jeroen T M Buters
- Center of Allergy and Environment, Technische Universität München and Helmholtz Center Munich, Member of the German Center for Lung Research (DZL), Munich, Germany
| | - Lorenzo Cecchi
- Centre of Bioclimatology, University of Florence, Florence, Italy; SOS Allergy and Clinical Immunology, USL Toscana Centro, Prato, Italy
| | - Stephen J Till
- King's Centre for Lung Health, School of Immunology and Microbial Sciences, King's College London, London, United Kingdom; Department of Allergy, Guy's and St Thomas' NHS Foundation Trust, London, United Kingdom
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6
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Tegart LJ, Schiro G, Dickinson JL, Green BJ, Barberán A, Marthick JR, Bissett A, Johnston FH, Jones PJ. Decrypting seasonal patterns of key pollen taxa in cool temperate Australia: A multi-barcode metabarcoding analysis. ENVIRONMENTAL RESEARCH 2024; 243:117808. [PMID: 38043901 DOI: 10.1016/j.envres.2023.117808] [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: 10/25/2023] [Revised: 11/23/2023] [Accepted: 11/27/2023] [Indexed: 12/05/2023]
Abstract
Pollen allergies pose a considerable global public health concern. Allergy risk can vary significantly within plant families, yet some key pollen allergens can only be identified to family level by current optical methods. Pollen information with greater taxonomic resolution is therefore required to best support allergy prevention and self-management. We used environmental DNA (eDNA) metabarcoding to deepen taxonomic insights into the seasonal composition of airborne pollen in cool temperate Australia, a region with high rates of allergic respiratory disease. In Hobart, Tasmania, we collected routine weekly air samples from December 2018 until October 2020 and sequenced the internal transcribed spacer 2 (ITS2) and chloroplastic tRNA-Leucine tRNA-Phenylalanine intergenic spacer (trnL-trnF) regions in order to address the following questions: a) What is the genus-level diversity of known and potential aeroallergens in Hobart, in particular, in the families Poaceae, Cupressaceae and Myrtaceae? b) How do the atmospheric concentrations of these taxa change over time, and c) Does trnL-trnF enhance resolution of biodiversity when used in addition to ITS2? Our results suggest that individuals in the region are exposed to temperate grasses including Poa and Bromus in the peak grass pollen season, however low levels of exposure to the subtropical grass Cynodon may occur in autumn and winter. Within Cupressaceae, both metabarcodes showed that exposure is predominantly to pollen from the introduced genera Cupressus and Juniperus. Only ITS2 detected the native genus, Callitris. Both metabarcodes detected Eucalyptus as the major Myrtaceae genus, with trnL-trnF exhibiting primer bias for this family. These findings help refine our understanding of allergy triggers in Tasmania and highlight the utility of multiple metabarcodes in aerobiome studies.
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Affiliation(s)
- Lachlan J Tegart
- Menzies Institute for Medical Research, University of Tasmania, Hobart, TAS, 7000, Australia.
| | - Gabriele Schiro
- Department of Environmental Science, University of Arizona, Tucson, AZ, 85721, United States.
| | - Joanne L Dickinson
- Menzies Institute for Medical Research, University of Tasmania, Hobart, TAS, 7000, Australia.
| | - Brett J Green
- Office of the Director, Health Effects Laboratory Division, Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health, Morgantown, WV, 26505, United States.
| | - Albert Barberán
- Department of Environmental Science, University of Arizona, Tucson, AZ, 85721, United States.
| | - James R Marthick
- Menzies Institute for Medical Research, University of Tasmania, Hobart, TAS, 7000, Australia.
| | - Andrew Bissett
- Commonwealth Scientific and Industrial Research Organisation, Hobart, TAS, Australia.
| | - Fay H Johnston
- Menzies Institute for Medical Research, University of Tasmania, Hobart, TAS, 7000, Australia; Public Health Services, Department of Health, Hobart, TAS, 7000, Australia.
| | - Penelope J Jones
- Menzies Institute for Medical Research, University of Tasmania, Hobart, TAS, 7000, Australia.
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Gherasim A, Lee AG, Bernstein JA. Impact of Climate Change on Indoor Air Quality. Immunol Allergy Clin North Am 2024; 44:55-73. [PMID: 37973260 DOI: 10.1016/j.iac.2023.09.001] [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] [Indexed: 11/19/2023]
Abstract
Climate change may affect the quality of the indoor environment through heat and mass transfer between indoors and outdoors: first by a direct response to global warming itself and related extreme weather phenomena and second by indirect actions taken to reduce greenhouse gas emissions that can lead to increased concentrations of indoor air contaminants. Therefore, both indoor and outdoor air pollution contribute to poor indoor air quality in this context. Exposures to high concentrations of these pollutants contribute to inflammatory respiratory diseases. Climate change adaptation and mitigation measures could minimize these risks and bring associated health benefits.
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Affiliation(s)
- Alina Gherasim
- ALYATEC Environmental Exposure Chamber, 1 Place de l'Hôpital, Strasbourg, France
| | - Alison G Lee
- Division of Pulmonary, Critical Care and Sleep Medicine, Icahn School of Medicine at Mount Sinai, 1 Gustave L Levy Place, New York, NY 10029, USA
| | - Jonathan A Bernstein
- Division of Rheumatology, Allergy and Immunology, University of Cincinnati College of Medicine, 231 Albert Sabin Way, Cincinnati, OH 45267, USA.
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Huang W, Schinasi LH, Kenyon CC, Auchincloss AH, Moore K, Melly S, Robinson LF, Forrest CB, De Roos AJ. Do respiratory virus infections modify associations of asthma exacerbation with aeroallergens or fine particulate matter? A time series study in Philadelphia PA. INTERNATIONAL JOURNAL OF ENVIRONMENTAL HEALTH RESEARCH 2024:1-12. [PMID: 38164931 DOI: 10.1080/09603123.2023.2299249] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/27/2023] [Accepted: 12/21/2023] [Indexed: 01/03/2024]
Abstract
Respiratory virus infections are related to over 80% of childhood asthma exacerbations. They enhance pro-inflammatory mediator release, especially for sensitized individuals exposed to pollens/molds. Using a time-series study design, we investigated possible effect modification by respiratory virus infections of the associations between aeroallergens/PM2.5 and asthma exacerbation rates. Outpatient, emergency department (ED), and inpatient visits for asthma exacerbation among children with asthma (28,540/24,444 [warm/cold season]), as well as viral infection counts were obtained from electronic health records of the Children's Hospital of Philadelphia from 2011 to 2016. Rate ratios (RRs, 90th percentile vs. 0) for late-season grass pollen were 1.00 (0.85-1.17), 1.04 (0.95-1.15), and 1.12 (0.96-1.32), respectively, for respiratory syncytial virus (RSV) counts within each tertile. However, similar trends were not observed for weed pollens/molds or PM2.5. Overall, our study provides little evidence supporting effect modification by respiratory viral infections.
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Affiliation(s)
- Wanyu Huang
- Department of Epidemiology and Biostatistics, Dornsife School of Public Health, Drexel University, Philadelphia, PA, USA
| | - Leah H Schinasi
- Department of Environmental and Occupational Health, Dornsife School of Public Health, Drexel University, Philadelphia, PA, USA
- Urban Health Collaborative, Dornsife School of Public Health, Drexel University, Philadelphia, PA, USA
| | - Chén C Kenyon
- PolicyLab, Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Amy H Auchincloss
- Department of Epidemiology and Biostatistics, Dornsife School of Public Health, Drexel University, Philadelphia, PA, USA
- Urban Health Collaborative, Dornsife School of Public Health, Drexel University, Philadelphia, PA, USA
| | - Kari Moore
- Urban Health Collaborative, Dornsife School of Public Health, Drexel University, Philadelphia, PA, USA
| | - Steven Melly
- Urban Health Collaborative, Dornsife School of Public Health, Drexel University, Philadelphia, PA, USA
| | - Lucy F Robinson
- Department of Epidemiology and Biostatistics, Dornsife School of Public Health, Drexel University, Philadelphia, PA, USA
| | - Christopher B Forrest
- The Applied Clinical Research Center, Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Anneclaire J De Roos
- Department of Environmental and Occupational Health, Dornsife School of Public Health, Drexel University, Philadelphia, PA, USA
- Urban Health Collaborative, Dornsife School of Public Health, Drexel University, Philadelphia, PA, USA
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9
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Seastedt H, Nadeau K. Factors by which global warming worsens allergic disease. Ann Allergy Asthma Immunol 2023; 131:694-702. [PMID: 37689112 PMCID: PMC10873081 DOI: 10.1016/j.anai.2023.08.610] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Revised: 08/16/2023] [Accepted: 08/20/2023] [Indexed: 09/11/2023]
Abstract
Increased use of fossil fuels has led to global warming with concomitant increases in the severity and frequency of extreme weather events such as wildfires and sand and dust storms. These changes have led to increases in air pollutants such as particulate matter and greenhouse gases. Global warming is also associated with increases in pollen season length and pollen concentration. Particulate matter, greenhouse gases, and pollen synergistically increase the incidence and severity of allergic diseases. Other indirect factors such as droughts, flooding, thunderstorms, heat waves, water pollution, human migration, deforestation, loss of green space, and decreasing biodiversity (including microbial diversity) also affect the incidence and severity of allergic disease. Global warming and extreme weather events are expected to increase in the coming decades, and further increases in allergic diseases are expected, exacerbating the already high health care burden associated with these diseases. There is an urgent need to mitigate and adapt to the effects of climate change to improve human health. Human health and planetary health are connected and the concept of One Health, which is an integrated, unifying approach to balance and optimize the health of people, animals, and the environment needs to be emphasized. Clinicians are trusted members of the community, and they need to take a strong leadership role in educating patients on climate change and its adverse effects on human health. They also need to advocate for policy changes that decrease the use of fossil fuels and increase biodiversity and green space to enable a healthier and more sustainable future.
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Affiliation(s)
- Hana Seastedt
- Sean N. Parker Center for Allergy and Asthma Research, Stanford University, Palo Alto, California
| | - Kari Nadeau
- Department of Environmental Health, Harvard T. H. Chan School of Public Health, Boston, Massachusetts.
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10
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Simunovic M, Boyle J, Erbas B, Baker P, Davies JM. Airborne grass pollen and thunderstorms influence emergency department asthma presentations in a subtropical climate. ENVIRONMENTAL RESEARCH 2023; 236:116754. [PMID: 37500047 DOI: 10.1016/j.envres.2023.116754] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Revised: 07/13/2023] [Accepted: 07/25/2023] [Indexed: 07/29/2023]
Abstract
BACKGROUND Grass pollen is considered a major outdoor aeroallergen source worldwide. It is proposed as a mechanism for thunderstorm asthma that lightning during thunderstorms promotes electrical rupture of pollen grains that leads to allergic airway inflammation. However, most evidence of associations between grass pollen and asthma comes from temperate regions. The objective of this study was to investigate short-term associations between airborne grass pollen exposure and asthma emergency department presentations in a subtropical population. METHODS Episode level public hospital presentations for asthma (2016-2020) were extracted for greater Brisbane, Australia, from Queensland Health's Emergency Data Collection. Concentrations of airborne pollen were determined prospectively using a continuous flow volumetric impaction sampler. Daily time series analysis using a generalised additive mixed model were applied to determine associations between airborne grass pollen concentrations, and lightning count data, with asthma presentations. RESULTS Airborne grass pollen showed an association with asthma presentations in Brisbane; a significant association was detected from same day exposure to three days lag. Grass pollen exposure increased daily asthma presentations up to 48.5% (95% CI: 12%, 85.9%) in female children. Lightning did not modify the effect of grass pollen on asthma presentations, however a positive association was detected between cloud-to-cloud lightning strikes and asthma presentations (P = 0.048). CONCLUSION Airborne grass pollen exposure may exacerbate symptoms of asthma requiring urgent medical care of children and adults in a subtropical climate. This knowledge indicates an opportunity for targeted management of respiratory allergic disease to reduce patient and health system burden. For the first time, an influence of lightning on asthma was detected in this context. The outcomes support a need for continued pollen monitoring and surveillance of thunderstorm asthma risk in subtropical regions.
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Affiliation(s)
- Marko Simunovic
- School of Biomedical Sciences, Centre for Immunity and Infection Control, Centre for Environment, Queensland University of Technology, Brisbane, Queensland, Australia
| | - Justin Boyle
- Australian E-Health Research Centre, The Commonwealth Scientific and Industrial Research Organisation, Brisbane, Queensland, Australia
| | - Bircan Erbas
- School of Psychology and Public Health, LaTrobe University, Bundoora, Victoria, Australia
| | - Philip Baker
- School of Public Health and Social Work, Australian Centre for Health Law Research, Queensland University of Technology, Brisbane, Queensland, Australia
| | - Janet M Davies
- School of Biomedical Sciences, Centre for Immunity and Infection Control, Centre for Environment, Queensland University of Technology, Brisbane, Queensland, Australia; Office of Research, Metro North Hospital and Health Services, Herston, Queensland, Australia.
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Yusuf OM, Rextin AT, Ahmed B, Aman R, Anjum T, Mustafa S, Nasim M, Yusuf SO, Lin C, Zahra S, Pinnock H, Schwarze J. Association of asthma exacerbations with paper mulberry (Broussenetia papyrifera) pollen in Islamabad: An observational study. J Glob Health 2023; 13:04091. [PMID: 37651635 PMCID: PMC10471151 DOI: 10.7189/jogh.13.04091] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/02/2023] Open
Abstract
Background Although the role of airborne plant pollen in causing allergic rhinitis has been established, the association of concentrations of paper mulberry (Broussenetia papyrifera) pollens in the air and incidence of asthma exacerbations has not, despite an observed increase in the number of asthma patients attending physician clinics and hospital Accident and Emergency (A&E) Departments during the paper mulberry pollen season. We aimed to assess the association between paper mulberry pollen concentrations (typically peaking in March each year) and asthma exacerbations in the city of Islamabad. Methods We used three approaches to investigate the correlation of paper mulberry pollen concentration with asthma exacerbations: A retrospective analysis of historical records (2000-2019) of asthma exacerbations of patients from the Allergy and Asthma Institute, Pakistan (n = 284), an analysis of daily nebulisations in patients attending the A&E Department of the Pakistan Institute of Medical Sciences (March 2020 to July 2021), a prospective peak expiratory flow rate (PEFR) diary from participants (n = 40) with or without asthma and with or without paper mulberry sensitisation. We examined associations between pollen data and asthma exacerbations using Pearson correlation. Results We found a strong positive correlation between mean paper mulberry pollen counts and clinical records of asthma exacerbations in patients sensitised to paper mulberry (Pearson correlation coefficient (r) = 0.86; P < 0.001), but not in non-sensitised patients (r = 0.32; P = 0.3). There was a moderate positive correlation between monthly nebulisation counts and pollen counts (r = 0.56; P = 0.03), and a strong negative correlation between percent predicted PEFR and pollen counts in sensitised asthma patients (r = -0.72, P < 0.001). However, these correlations were of low magnitude in the non-sensitised asthma (r = -0.16; P < 0.001) and sensitised non-asthma (r = -0.28; P < 0.001) groups. Conclusions Our three approaches to analysis all showed an association between high paper mulberry pollen concentration in Islamabad and asthma exacerbations. Predicting pollen peaks could enable alerts and mobilise strategies to proactively manage these peaks of asthma exacerbations.
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Affiliation(s)
| | - Aimal T Rextin
- The Allergy & Asthma Institute, Islamabad, Pakistan
- National University of Science and Technology, Islamabad, Pakistan
| | | | - Rubina Aman
- The Allergy & Asthma Institute, Islamabad, Pakistan
- Pakistan Institute of Medical Sciences, Islamabad, Pakistan
| | | | | | - Mehwish Nasim
- The Allergy & Asthma Institute, Islamabad, Pakistan
- The University of Western Australia, Crawley, Western Australia, Australia
| | | | - Chun Lin
- NIHR Global Health Research Unit on Respiratory Health (RESPIRE), Usher Institute, The University of Edinburgh, Edinburgh, United Kingdom
| | - Summan Zahra
- The Allergy & Asthma Institute, Islamabad, Pakistan
| | - Hillary Pinnock
- NIHR Global Health Research Unit on Respiratory Health (RESPIRE), Usher Institute, The University of Edinburgh, Edinburgh, United Kingdom
| | - Jürgen Schwarze
- NIHR Global Health Research Unit on Respiratory Health (RESPIRE), Usher Institute, The University of Edinburgh, Edinburgh, United Kingdom
- Child Life and Health, Centre for Inflammation Research, The University of Edinburgh, Edinburgh, United Kingdom
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12
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Sharma R, Humphrey JL, Frueh L, Kinnee EJ, Sheffield PE, Clougherty JE. Neighborhood violence and socioeconomic deprivation influence associations between acute air pollution and temperature on childhood asthma in New York city. ENVIRONMENTAL RESEARCH 2023; 231:116235. [PMID: 37244495 PMCID: PMC10364588 DOI: 10.1016/j.envres.2023.116235] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Revised: 05/22/2023] [Accepted: 05/24/2023] [Indexed: 05/29/2023]
Abstract
Ambient air pollution, temperature, and social stressor exposures are linked with asthma risk, with potential synergistic effects. We examined associations for acute pollution and temperature exposures, with modification by neighborhood violent crime and socioeconomic deprivation, on asthma morbidity among children aged 5-17 years year-round in New York City. Using conditional logistic regression in a time-stratified, case-crossover design, we quantified percent excess risk of asthma event per 10-unit increase in daily, residence-specific exposures to PM2.5, NO2, SO2, O3, and minimum daily temperature (Tmin). Data on 145,834 asthma cases presenting to NYC emergency departments from 2005 to 2011 were obtained from the New York Statewide Planning and Research Cooperative System (SPARCS). Residence- and day-specific spatiotemporal exposures were assigned using the NYC Community Air Survey (NYCCAS) spatial data and daily EPA pollution and NOAA weather data. Point-level NYPD violent crime data for 2009 (study midpoint) was aggregated, and Socioeconomic Deprivation Index (SDI) scores assigned, by census tract. Separate models were fit for each pollutant or temperature exposure for lag days 0-6, controlling for co-exposures and humidity, and mutually-adjusted interactions (modification) by quintile of violent crime and SDI were assessed. We observed stronger main effects for PM2.5 and SO2 in the cold season on lag day 1 [4.90% (95% CI: 3.77-6.04) and 8.57% (5.99-11.21), respectively]; Tmin in the cold season on lag day 0 [2.26% (1.25-3.28)]; and NO2 and O3 in the warm season on lag days 1 [7.86% (6.66-9.07)] and 2 [4.75% (3.53-5.97)], respectively. Violence and SDI modified the main effects in a non-linear manner; contrary to hypotheses, we found stronger associations in lower-violence and -deprivation quintiles. At very high stressor exposures, although asthma exacerbations were highly prevalent, pollution effects were less apparent-suggesting potential saturation effects in socio-environmental synergism.
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Affiliation(s)
- Rachit Sharma
- Department of Environmental and Occupational Health, Dornsife School of Public Health, Drexel University, Philadelphia, PA, USA.
| | - Jamie L Humphrey
- Center for Health Analytics, Media & Policy, RTI International, Research Triangle Park, NC, USA
| | - Lisa Frueh
- Department of Environmental and Occupational Health, Dornsife School of Public Health, Drexel University, Philadelphia, PA, USA
| | - Ellen J Kinnee
- University Center for Social and Urban Research, University of Pittsburgh, Pittsburgh, PA, USA
| | - Perry E Sheffield
- Department of Environmental Medicine and Public Health, and Pediatrics, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Jane E Clougherty
- Department of Environmental and Occupational Health, Dornsife School of Public Health, Drexel University, Philadelphia, PA, USA
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Kelly G, Idubor OI, Binney S, Schramm PJ, Mirabelli MC, Hsu J. The Impact of Climate Change on Asthma and Allergic-Immunologic Disease. Curr Allergy Asthma Rep 2023; 23:453-461. [PMID: 37284923 PMCID: PMC10613957 DOI: 10.1007/s11882-023-01093-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/12/2023] [Indexed: 06/08/2023]
Abstract
PURPOSE OF REVIEW This review discusses climate change-related impacts on asthma and allergic-immunologic disease, relevant US public health efforts, and healthcare professional resources. RECENT FINDINGS Climate change can impact people with asthma and allergic-immunologic disease through various pathways, including increased exposure to asthma triggers (e.g., aeroallergens, ground-level ozone). Climate change-related disasters (e.g., wildfires, floods) disrupting healthcare access can complicate management of any allergic-immunologic disease. Climate change disproportionately affects some communities, which can exacerbate disparities in climate-sensitive diseases like asthma. Public health efforts include implementing a national strategic framework to help communities track, prevent, and respond to climate change-related health threats. Healthcare professionals can use resources or tools to help patients with asthma and allergic-immunologic disease prevent climate change-related health impacts. Climate change can affect people with asthma and allergic-immunologic disease and exacerbate health disparities. Resources and tools are available to help prevent climate change-related health impacts at the community and individual level.
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Affiliation(s)
- Grace Kelly
- Epidemiology Elective Program, National Center for STLT Public Health Infrastructure and Workforce, and Asthma and Community Health Branch, Division of Environmental Health Science and Practice, National Center for Environmental Health, Centers for Disease Control and Prevention (CDC), Atlanta, GA, USA
| | - Osatohamwen I Idubor
- Asthma and Community Health Branch, Division of Environmental Health Science and Practice, National Center for Environmental Health, CDC, 4770 Buford Highway Mailstop S106-6, Atlanta, GA, 30341, USA
| | - Sophie Binney
- Asthma and Community Health Branch, Division of Environmental Health Science and Practice, National Center for Environmental Health, CDC, 4770 Buford Highway Mailstop S106-6, Atlanta, GA, 30341, USA
- Oak Ridge Institute for Science and Education, Oak Ridge, TN, USA
| | - Paul J Schramm
- Climate and Health Program, Division of Environmental Health Science and Practice, National Center for Environmental Health, CDC, Atlanta, GA, USA
| | - Maria C Mirabelli
- Asthma and Community Health Branch, Division of Environmental Health Science and Practice, National Center for Environmental Health, CDC, 4770 Buford Highway Mailstop S106-6, Atlanta, GA, 30341, USA
| | - Joy Hsu
- Asthma and Community Health Branch, Division of Environmental Health Science and Practice, National Center for Environmental Health, CDC, 4770 Buford Highway Mailstop S106-6, Atlanta, GA, 30341, USA.
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Sampath V, Shalakhti O, Veidis E, Efobi JAI, Shamji MH, Agache I, Skevaki C, Renz H, Nadeau KC. Acute and chronic impacts of heat stress on planetary health. Allergy 2023; 78:2109-2120. [PMID: 36883412 DOI: 10.1111/all.15702] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Revised: 02/28/2023] [Accepted: 03/02/2023] [Indexed: 03/09/2023]
Abstract
Heat waves are increasing in intensity, frequency, and duration causing significant heat stress in all living organisms. Heat stress has multiple negative effects on plants affecting photosynthesis, respiration, growth, development, and reproduction. It also impacts animals leading to physiological and behavioral alterations, such as reduced caloric intake, increased water intake, and decreased reproduction and growth. In humans, epidemiological studies have shown that heat waves are associated with increased morbidity and mortality. There are many biological effects of heat stress (structural changes, enzyme function disruption, damage through reactive oxygen or nitrogen species). While plants and animals can mitigate some of these effects through adaptive mechanisms such as the generation of heat shock proteins, antioxidants, stress granules, and others, these mechanisms may likely be inadequate with further global warming. This review summarizes the effects of heat stress on plants and animals and the adaptative mechanisms that have evolved to counteract this stress.
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Affiliation(s)
- Vanitha Sampath
- Sean N. Parker Center for Allergy and Asthma Research at Stanford University, California, Stanford, USA
| | - Omar Shalakhti
- Sean N. Parker Center for Allergy and Asthma Research at Stanford University, California, Stanford, USA
| | - Erika Veidis
- Center for Innovation in Global Health, Stanford University, California, Stanford, USA
| | - Jo Ann Ifeoma Efobi
- Sean N. Parker Center for Allergy and Asthma Research at Stanford University, California, Stanford, USA
| | - Mohamed H Shamji
- National Heart and Lung Institute, Imperial College London, London, UK
- NIHR Imperial Biomedical Research Centre, London, UK
| | - Ioana Agache
- Faculty of Medicine, Transylvania University, Brasov, Romania
| | - Chrysanthi Skevaki
- Institute of Laboratory Medicine, Member of the German Center for Lung Research (DZL), Philipps-University Marburg, Marburg, Germany
- German Center for Lung Research (DZL), Universities of Giessen and Marburg Lung Center (UGMLC), Philipps University Marburg, Marburg, Germany
| | - Harald Renz
- Institute of Laboratory Medicine, Member of the German Center for Lung Research (DZL), Philipps-University Marburg, Marburg, Germany
- German Center for Lung Research (DZL), Universities of Giessen and Marburg Lung Center (UGMLC), Philipps University Marburg, Marburg, Germany
- Department of Clinical Immunology and Allergology, Sechenov University, Moscow, Russia
- Kilimanjaro Christian Medical University College (KCMUCo), Moshi, Tanzania
| | - Kari C Nadeau
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, USA
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15
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Lappe BL, Ebelt S, D'Souza RR, Manangan A, Brown C, Saha S, Harris D, Chang HH, Sole A, Scovronick N. Pollen and asthma morbidity in Atlanta: A 26-year time-series study. ENVIRONMENT INTERNATIONAL 2023; 177:107998. [PMID: 37290290 PMCID: PMC10600739 DOI: 10.1016/j.envint.2023.107998] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/20/2023] [Revised: 04/28/2023] [Accepted: 05/26/2023] [Indexed: 06/10/2023]
Abstract
BACKGROUND Compared to many environmental risk factors, the relationship between pollen and asthma is understudied, including how associations may differ by pollen type and between subgroups, and how associations may be changing over time. OBJECTIVES We evaluated the association between ambient pollen concentrations and emergency department (ED) visits for asthma and wheeze in Atlanta, Georgia during 1993-2018. We estimated overall associations for 13 individual pollen taxa, as well as associations by decade, race, age (5-17, 18-64, 65+), and insurance status (Medicaid vs non-Medicaid). METHODS Speciated pollen data were acquired from Atlanta Allergy & Asthma, a nationally certified pollen counting station. ED visit data were obtained from individual hospitals and from the Georgia Hospital Association. We performed time-series analyses using quasi-Poisson distributed lag models, with primary analyses assessing 3-day (lag 0-2 days) pollen levels. Models controlled for day of week, holidays, air temperature, month, year, and month-by-year interactions. RESULTS From 1993 to 2018, there were 686,259 ED visits for asthma and wheeze in the dataset, and the number of ED visits increased over time. We observed positive associations of asthma and wheeze ED visits with nine of the 13 pollen taxa: trees (maple, birch, pine, oak, willow, sycamore, and mulberry), two weeds (nettle and pigweed), and grasses. Rate ratios indicated 1-8% increases in asthma and wheeze ED visits per standard deviation increases in pollen. In general, we observed stronger associations in the earliest period (1993-2000), in younger people, and in Black patients; however, results varied by pollen taxa. CONCLUSIONS Some, but not all, types of pollen are associated with increased ED visits for asthma/wheeze. Associations are generally higher in Black and younger patients and appear to have decreased over time.
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Affiliation(s)
- Brooke L Lappe
- Gangarosa Department of Environmental Health, Rollins School of Public Health, Emory University, Atlanta, GA, USA
| | - Stefanie Ebelt
- Gangarosa Department of Environmental Health, Rollins School of Public Health, Emory University, Atlanta, GA, USA.
| | - Rohan R D'Souza
- Department of Biostatistics and Bioinformatics, Rollins School of Public Health, Emory University, Atlanta, GA, USA
| | - Arie Manangan
- Climate and Health Program, Division of Environmental Health Science and Practice, National Center for Environmental Health, Centers for Disease Control and Prevention, Atlanta, GA, USA
| | - Claudia Brown
- Climate and Health Program, Division of Environmental Health Science and Practice, National Center for Environmental Health, Centers for Disease Control and Prevention, Atlanta, GA, USA
| | - Shubhayu Saha
- Climate and Health Program, Division of Environmental Health Science and Practice, National Center for Environmental Health, Centers for Disease Control and Prevention, Atlanta, GA, USA; Office of Climate Change and Health Equity, Department of Health and Human Services, Washington DC, USA
| | - Drew Harris
- Division of Pulmonary and Critical Care Medicine, University of Virginia, Charlottesville, VA, USA
| | - Howard H Chang
- Gangarosa Department of Environmental Health, Rollins School of Public Health, Emory University, Atlanta, GA, USA; Department of Biostatistics and Bioinformatics, Rollins School of Public Health, Emory University, Atlanta, GA, USA
| | - Adam Sole
- Gangarosa Department of Environmental Health, Rollins School of Public Health, Emory University, Atlanta, GA, USA
| | - Noah Scovronick
- Gangarosa Department of Environmental Health, Rollins School of Public Health, Emory University, Atlanta, GA, USA.
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Boboltz A, Kumar S, Duncan GA. Inhaled drug delivery for the targeted treatment of asthma. Adv Drug Deliv Rev 2023; 198:114858. [PMID: 37178928 PMCID: PMC10330872 DOI: 10.1016/j.addr.2023.114858] [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: 02/03/2023] [Revised: 04/14/2023] [Accepted: 04/29/2023] [Indexed: 05/15/2023]
Abstract
Asthma is a chronic lung disease affecting millions worldwide. While classically acknowledged to result from allergen-driven type 2 inflammatory responses leading to IgE and cytokine production and the influx of immune cells such as mast cells and eosinophils, the wide range in asthmatic pathobiological subtypes lead to highly variable responses to anti-inflammatory therapies. Thus, there is a need to develop patient-specific therapies capable of addressing the full spectrum of asthmatic lung disease. Moreover, delivery of targeted treatments for asthma directly to the lung may help to maximize therapeutic benefit, but challenges remain in design of effective formulations for the inhaled route. In this review, we discuss the current understanding of asthmatic disease progression as well as genetic and epigenetic disease modifiers associated with asthma severity and exacerbation of disease. We also overview the limitations of clinically available treatments for asthma and discuss pre-clinical models of asthma used to evaluate new therapies. Based on the shortcomings of existing treatments, we highlight recent advances and new approaches to treat asthma via inhalation for monoclonal antibody delivery, mucolytic therapy to target airway mucus hypersecretion and gene therapies to address underlying drivers of disease. Finally, we conclude with discussion on the prospects for an inhaled vaccine to prevent asthma.
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Affiliation(s)
- Allison Boboltz
- Fischell Department of Bioengineering, University of Maryland, College Park, MD 20742, United States
| | - Sahana Kumar
- Biological Sciences Graduate Program, University of Maryland, College Park, MD 20742, United States
| | - Gregg A Duncan
- Fischell Department of Bioengineering, University of Maryland, College Park, MD 20742, United States; Biological Sciences Graduate Program, University of Maryland, College Park, MD 20742, United States.
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17
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Sampath V, Aguilera J, Prunicki M, Nadeau KC. Mechanisms of climate change and related air pollution on the immune system leading to allergic disease and asthma. Semin Immunol 2023; 67:101765. [PMID: 37105834 PMCID: PMC10275624 DOI: 10.1016/j.smim.2023.101765] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Accepted: 04/19/2023] [Indexed: 04/29/2023]
Abstract
Climate change is considered the greatest threat to global health. Greenhouse gases as well as global surface temperatures have increased causing more frequent and intense heat and cold waves, wildfires, floods, drought, altered rainfall patterns, hurricanes, thunderstorms, air pollution, and windstorms. These extreme weather events have direct and indirect effects on the immune system, leading to allergic disease due to exposure to pollen, molds, and other environmental pollutants. In this review, we will focus on immune mechanisms associated with allergy and asthma-related health risks induced by climate change events. We will review current understanding of the molecular and cellular mechanisms by which the changing environment mediates these effects.
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Affiliation(s)
- Vanitha Sampath
- Sean N. Parker Center for Allergy and Asthma Research, Department of Medicine, Stanford University School of Medicine, Stanford, CA, USA.
| | - Juan Aguilera
- Center for Community Health Impact, The University of Texas Health Science Center at Houston School of Public Health, El Paso, Texas, USA
| | - Mary Prunicki
- Sean N. Parker Center for Allergy and Asthma Research, Department of Medicine, Stanford University School of Medicine, Stanford, CA, USA
| | - Kari C Nadeau
- Department of Environmental Health, Harvard T. H. Chan School of Public Health, Boston, MA, USA
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18
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González-Iglesias V, Martínez-Pérez I, Rodríguez Suárez V, Fernández-Somoano A. Spatial distribution of hospital admissions for asthma in the central area of Asturias, Northern Spain. BMC Public Health 2023; 23:787. [PMID: 37118792 PMCID: PMC10141842 DOI: 10.1186/s12889-023-15731-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2021] [Accepted: 04/22/2023] [Indexed: 04/30/2023] Open
Abstract
BACKGROUND Asturias is one of the communities with the highest rates of hospital admission for asthma in Spain. The environmental pollution or people lifestyle are some of the factors that contribute to the appearance or aggravation of this illness. The aim of this study was to show the spatial distribution of asthma admissions risks in the central municipalities of Asturias and to analyze the observed spatial patterns. METHODS Urgent hospital admissions for asthma and status asthmaticus occurred between 2016 to 2018 on the public hospitals of the central area of Asturias were used. Population data were assigned in 5 age groups. Standardised admission ratio (SAR), smoothed relative risk (SRR) and posterior risk probability (PP) were calculated for each census tract (CT). A spatial trend analysis was run, a spatial autocorrelation index (Morans I) was calculated and a cluster and outlier analysis (Anselin Local Morans I) was finally performed in order to analyze spatial clusters. RESULTS The total number of hospital urgent asthma admissions during the study period was 2324, 1475 (63.46%) men and 849 (36.56%) women. The municipalities with the highest values of SRR and PP were located on the northwest area: Avilés, Gozón, Carreño, Corvera de Asturias, Castrillón and Illas. A high risk cluster was found for the municipalities of Avilés, Gozón y Corvera de Asturias. CONCLUSIONS The spatial analysis showed high risk of hospitalization for asthma on the municipalities of the northwest area of the study, which highlight the existence of spatial inequalities on the distribution of urgent hospital admissions.
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Affiliation(s)
- Verónica González-Iglesias
- Departamento de Medicina, IUOPA-Área de Medicina Preventiva Y Salud Pública, Universidad de Oviedo. C/Julián Clavería S/N, 33006, Oviedo (Asturias), Spain
| | - Isabel Martínez-Pérez
- Departamento de Medicina, IUOPA-Área de Medicina Preventiva Y Salud Pública, Universidad de Oviedo. C/Julián Clavería S/N, 33006, Oviedo (Asturias), Spain.
| | - Valentín Rodríguez Suárez
- Dirección General de Salud Pública, Consejería de Salud, Principado de Asturias, C/ Ciriaco Miguel Vigil, 9, 33006, Oviedo, Spain
| | - Ana Fernández-Somoano
- Departamento de Medicina, IUOPA-Área de Medicina Preventiva Y Salud Pública, Universidad de Oviedo. C/Julián Clavería S/N, 33006, Oviedo (Asturias), Spain
- CIBER Epidemiología Y Salud Pública (CIBERESP), Instituto de Salud Carlos III, Avenida Monforte de Lemos, 3-5, 28029, Madrid, Spain
- Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), Avenida Roma, S/N, 33001, Oviedo, Spain
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Zhou X, Guo M, Li Z, Yu X, Huang G, Li Z, Zhang X, Liu L. Associations between air pollutant and pneumonia and asthma requiring hospitalization among children aged under 5 years in Ningbo, 2015-2017. Front Public Health 2023; 10:1017105. [PMID: 36777770 PMCID: PMC9908005 DOI: 10.3389/fpubh.2022.1017105] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Accepted: 12/27/2022] [Indexed: 01/26/2023] Open
Abstract
Introduction Exposure to ambient air pollutants is associated with an increased incidence of respiratory diseases such as pneumonia and asthma, especially in younger children. We investigated the relationship between rates of hospitalization of children aged under 5 years for pneumonia and asthma and the concentration of air pollutants in Ningbo between January 1, 2015 and August 29, 2017. Methods Data were obtained from the Ningbo Air Quality Data Real-time Publishing System and the big data platform of the Ningbo Health Information Center. A generalized additive model was established via logarithmic link function and utilized to evaluate the effect of pollutant concentration on lag dimension and perform sensitivity analysis. Results A total of 10,301 cases of pneumonia and 115 cases of asthma were identified over the course of this study. Results revealed that PM2.5, PM10, SO2 and NO2 were significantly associated with hospitalization for pneumonia and asthma in children under 5 years of age. For every 10-unit increase in lag03 air pollutant concentration, hospitalization for pneumonia and asthma due to PM2.5, PM10, SO2 and NO2 increased by 2.22% (95%CI: 0.64%, 3.82%), 1.94% (95%CI: 0.85%, 3.04%), 11.21% (95%CI: 4.70%, 18.10%) and 5.42% (95%CI: 3.07%, 7.82%), respectively. Discussion Adverse effects of air pollutants were found to be more severe in children aged 1 to 5 years and adverse effects due to PM2.5, PM10 and SO2 were found to be more severe in girls. Our findings underscore the need for implementation of effective public health measures to urgently improve air quality and reduce pediatric hospitalizations due to respiratory illness.
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Affiliation(s)
- Xingyuan Zhou
- Department of Pediatrics, The Affiliated Hospital of Medical School of Ningbo University, Ningbo, Zhejiang, China
| | - Min Guo
- Department of Obstetrics, Tangshan Maternal and Child Health Care Hospital of Hebei Province, Tangshan, Hebei, China
| | - Zhifei Li
- Department of Pediatrics, The Affiliated Hospital of Medical School of Ningbo University, Ningbo, Zhejiang, China
| | - Xiping Yu
- Department of Pediatrics, The Affiliated Hospital of Medical School of Ningbo University, Ningbo, Zhejiang, China
| | - Gang Huang
- Department of Preventative Medicine, Medicine School of Ningbo University, Ningbo, Zhejiang, China
| | - Zhen Li
- Department of Preventative Medicine, Medicine School of Ningbo University, Ningbo, Zhejiang, China
| | - Xiaohong Zhang
- Department of Pediatrics, The Affiliated Hospital of Medical School of Ningbo University, Ningbo, Zhejiang, China,*Correspondence: Xiaohong Zhang ✉
| | - Liya Liu
- Department of Pediatrics, The Affiliated Hospital of Medical School of Ningbo University, Ningbo, Zhejiang, China,Liya Liu ✉
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Queiroz Almeida D, Paciência I, Moreira C, Cavaleiro Rufo J, Moreira A, Santos AC, Barros H, Ribeiro AI. Green and blue spaces and lung function in the Generation XXI cohort: a life-course approach. Eur Respir J 2022; 60:2103024. [PMID: 35896209 DOI: 10.1183/13993003.03024-2021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2021] [Accepted: 06/28/2022] [Indexed: 12/27/2022]
Abstract
BACKGROUND Exposure to natural environments may affect respiratory health. This study examined the association of exposure to green and blue spaces with lung function in children, and assessed the mediation effect of air pollution and physical activity. METHODS The study used data from the Generation XXI, a population-based birth cohort from the Porto Metropolitan Area (Portugal). Residential Normalised Difference Vegetation Index (NDVI) at different buffers (100, 250 and 500 m), the accessibility to urban green spaces (UGS) within 400 and 800 m and the minimum distance to the nearest UGS and to the nearest blue spaces were assessed at birth, 4, 7 and 10 years of age. Three life-course measures were calculated: averaged exposure, early-life exposure (birth) and exposure trend over time (change in exposure). Forced vital capacity (FVC), forced expiratory volume in 1 s (FEV1) and forced expiratory flow between 25% and 75% of FVC (FEF25-75%) at 10 years were used as outcomes. To assess associations, linear regression models and path analysis were used. RESULTS This study included 3278 children. The adjusted models showed that increasing the NDVI exposure over time within 100 m of the child's residence was associated with higher values of FEV1 (L) and FEF25-75% (L·s-1) (β 0.01, 95% CI 0.0002-0.03 and β 0.02, 95% CI 0.001-0.05, respectively). No significant associations were observed for the remaining measures of exposure, and no mediation effect was found for pollution or physical activity. CONCLUSION Increasing exposure to greenness at close proximity from residences was associated with improved lung function. While the mechanism remains unknown, this study brings evidence that city greening may improve children's respiratory health.
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Affiliation(s)
- Diogo Queiroz Almeida
- EPIUnit - Instituto de Saúde Pública, Universidade do Porto, Porto, Portugal
- Laboratório para a Investigação Integrativa e Translacional em Saúde Populacional (ITR), Porto, Portugal
- Departamento de Ciências da Saúde Pública e Forenses e Educação Médica, Faculdade de Medicina, Universidade do Porto, Porto, Portugal
- Unidade de Saúde Pública, Unidade Local de Saúde de Matosinhos, Matosinhos, Portugal
- Equal contributors
| | - Inês Paciência
- EPIUnit - Instituto de Saúde Pública, Universidade do Porto, Porto, Portugal
- Laboratório para a Investigação Integrativa e Translacional em Saúde Populacional (ITR), Porto, Portugal
- Equal contributors
| | - Carla Moreira
- Cmat - Centre of Mathematics School of Sciences, University of Minho, Braga, Portugal
| | - João Cavaleiro Rufo
- EPIUnit - Instituto de Saúde Pública, Universidade do Porto, Porto, Portugal
- Laboratório para a Investigação Integrativa e Translacional em Saúde Populacional (ITR), Porto, Portugal
| | - André Moreira
- EPIUnit - Instituto de Saúde Pública, Universidade do Porto, Porto, Portugal
- Laboratório para a Investigação Integrativa e Translacional em Saúde Populacional (ITR), Porto, Portugal
- Faculdade de Medicina da Universidade do Porto, Porto, Portugal
- Serviço de Imunoalergologia, Centro Hospitalar Universitário de São João, Porto, Portugal
- Faculdade de Ciências da Nutrição e Alimentação da Universidade do Porto, Porto, Portugal
| | - Ana Cristina Santos
- EPIUnit - Instituto de Saúde Pública, Universidade do Porto, Porto, Portugal
- Laboratório para a Investigação Integrativa e Translacional em Saúde Populacional (ITR), Porto, Portugal
- Faculdade de Medicina da Universidade do Porto, Porto, Portugal
| | - Henrique Barros
- EPIUnit - Instituto de Saúde Pública, Universidade do Porto, Porto, Portugal
- Laboratório para a Investigação Integrativa e Translacional em Saúde Populacional (ITR), Porto, Portugal
- Faculdade de Medicina da Universidade do Porto, Porto, Portugal
| | - Ana Isabel Ribeiro
- EPIUnit - Instituto de Saúde Pública, Universidade do Porto, Porto, Portugal
- Laboratório para a Investigação Integrativa e Translacional em Saúde Populacional (ITR), Porto, Portugal
- Faculdade de Medicina da Universidade do Porto, Porto, Portugal
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21
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Nitschke M, Dear KBG, Venugopal K, Lyne KMR, Jersmann HPA, Simon DL, Spurrier N. Association between grass, tree and weed pollen and asthma health outcomes in Adelaide, South Australia: a time series regression analysis. BMJ Open 2022; 12:e066851. [PMID: 36414301 PMCID: PMC9723903 DOI: 10.1136/bmjopen-2022-066851] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
OBJECTIVES We aim to establish daily risk estimates of the relationships between grass, tree and weed pollen and asthma health outcomes. DESIGN Time series regression analysis of exposure and health outcomes using interaction by month to determine risk estimates all year round. SETTING Metropolitan Adelaide, South Australia. PARTICIPANTS Health outcomes for asthma are based on 15 years of hospital admissions, 13 years emergency presentations and ambulance callouts. In adults (≥18 years), there were 10 381 hospitalisations, 26 098 emergency department (ED) presentations and 11 799 ambulance callouts and in children (0-17 years), 22 114, 39 813 and 3774, respectively. OUTCOME MEASURES The cumulative effect of 7 day lags was calculated as the sum of the coefficients and reported as incidence rate ratio (IRR) related to an increase in 10 grains of pollen/m3. RESULTS In relation to grass pollen, children and adults were disparate in their timing of health effects. Asthma outcomes in children were positively related to grass pollen in May, and for adults in October. Positive associations with weed pollen in children was seen from February to May across all health outcomes. For adults, weed pollen-related health outcomes were restricted to February. Adults were not affected by tree pollen, while children's asthma morbidity was associated with tree pollen in August and September. In children, IRRs ranged from 1.14 (95% CI 1.06 to 1.21) for ED presentations for tree pollen in August to 1.98 (95% CI 1.06 to 3.72) for weed pollen in February. In adults, IRRs ranged from 1.28 (95% CI 1.01 to 1.62) for weed pollen in February to 1.31 (95% CI 1.08 to 1.57) for grass pollen in October. CONCLUSION Monthly risk assessment indicated that most pollen-related asthma health outcomes in children occur in the colder part of the year, while adults are affected in the warm season. The findings indicate a need for year-round pollen monitoring and related health campaigns to provide effective public health prevention.
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Affiliation(s)
- Monika Nitschke
- School of Public Health, The University of Adelaide, Adelaide, South Australia, Australia
- SA Health Department for Health and Wellbeing, Adelaide, South Australia, Australia
| | | | - Kamalesh Venugopal
- Prevention and Population Health, Wellbeing SA, Adelaide, South Australia, Australia
| | - Katrina Margaret Rose Lyne
- Health Protection and Licensing Services, SA Health Department for Health and Wellbeing, Adelaide, South Australia, Australia
| | - Hubertus Paul Anton Jersmann
- Thoracic Medicine, Royal Adelaide Hospital, Adelaide, South Australia, Australia
- School of Medicine, The University of Adelaide, Adelaide, South Australia, Australia
| | - David Leslie Simon
- Health Protection and Licensing Services, SA Health Department for Health and Wellbeing, Adelaide, South Australia, Australia
| | - Nicola Spurrier
- SA Health Department for Health and Wellbeing, Adelaide, South Australia, Australia
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22
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Batra M, Dharmage SC, Newbigin E, Tang M, Abramson MJ, Erbas B, Vicendese D. Grass pollen exposure is associated with higher readmission rates for pediatric asthma. Pediatr Allergy Immunol 2022; 33:e13880. [PMID: 36433858 DOI: 10.1111/pai.13880] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/26/2022] [Revised: 10/18/2022] [Accepted: 10/20/2022] [Indexed: 11/17/2022]
Abstract
BACKGROUND Pediatric asthma hospital readmission is a burden on the individual and costly for Australian hospitals. Grass pollen's role, a known trigger for asthma admissions, is unexamined in readmissions. We examined the association between grass pollen and pediatric asthma readmission. METHODS The Victorian Admitted Episodes Dataset was used to identify all primary admissions with a principal diagnosis of asthma in children aged 2-18 years between 1997 and 2009. Readmissions were defined as subsequent admissions within 28 days of index admission discharge. Generalized additive models were used to assess associations between readmission, grass pollen season, and daily grass pollen counts, lagged and cumulative. Models were further stratified by sex and age group. RESULTS Mean daily readmission was higher during grass pollen season than other times of the year, incidence rate ratio (IRR) 1.44 (95% CI, 1.03, 2.02) and for children aged 2-5 years, IRR 1.99 (1.26, 3.14). Same day grass pollen was nonlinearly associated with daily readmission for the 13-18 age group between 110 and 256 grains/m3 , p < .01. Lag 2 grass pollen was nonlinearly associated with daily readmissions overall (p = .03), boys (p = .01), and younger age groups 2-5 (p = .02) and 6-12 (p < .001). CONCLUSIONS Grass pollen exposure was associated with higher readmission rates for pediatric asthma. Treatment plans prior to discharge could be implemented to reduce the likelihood of readmission by younger children during the pollen season.
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Affiliation(s)
- Mehak Batra
- Department of Public Health, School of Psychology and Public Health, La Trobe University, Melbourne, Victoria, Australia
| | - Shyamali C Dharmage
- Allergy and Lung Health Unit, Centre for Epidemiology and Biostatistics, Melbourne School of Population and Global Health, The University of Melbourne, Melbourne, Victoria, Australia
| | - Edward Newbigin
- School of BioSciences, The University of Melbourne, Melbourne, Victoria, Australia
| | - Mimi Tang
- Department of Paediatrics, The University of Melbourne, Melbourne, Victoria, Australia.,Murdoch Children's Research Institute, The Royal Children's Hospital Victoria, Melbourne, Victoria, Australia
| | - Michael J Abramson
- School of Public Health & Preventive Medicine, Monash University, Melbourne, Victoria, Australia
| | - Bircan Erbas
- Department of Public Health, School of Psychology and Public Health, La Trobe University, Melbourne, Victoria, Australia.,Violet Vines Marshman Centre for Rural Health Research, La Trobe University, Bendigo, Victoria, Australia
| | - Don Vicendese
- Allergy and Lung Health Unit, Centre for Epidemiology and Biostatistics, Melbourne School of Population and Global Health, The University of Melbourne, Melbourne, Victoria, Australia.,School of Engineering & Mathematical Science, La Trobe University, Bundoora, Victoria, Australia
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23
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Davies JM, Smith BA, Milic A, Campbell B, Van Haeften S, Burton P, Keaney B, Lampugnani ER, Vicendese D, Medek D, Huete A, Erbas B, Newbigin E, Katelaris CH, Haberle SG, Beggs PJ. The AusPollen partnership project: Allergenic airborne grass pollen seasonality and magnitude across temperate and subtropical eastern Australia, 2016-2020. ENVIRONMENTAL RESEARCH 2022; 214:113762. [PMID: 35779617 DOI: 10.1016/j.envres.2022.113762] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2021] [Revised: 05/25/2022] [Accepted: 06/22/2022] [Indexed: 06/15/2023]
Abstract
BACKGROUND Allergic rhinitis affects half a billion people globally, including a fifth of the Australian population. As the foremost outdoor allergen source, ambient grass pollen exposure is likely to be altered by climate change. The AusPollen Partnership aimed to standardize pollen monitoring and examine broad-scale biogeographical and meteorological factors influencing interannual variation in seasonality of grass pollen aerobiology in Australia. METHODS Daily airborne grass and other pollen concentrations in four eastern Australian cities separated by over 1700 km, were simultaneously monitored using Hirst-style samplers following the Australian Interim Pollen and Spore Monitoring Standard and Protocols over four seasons from 2016 to 2020. The grass seasonal pollen integral was determined. Gridded rainfall, temperature, and satellite-derived grassland sources up to 100 km from the monitoring site were analysed. RESULTS The complexity of grass pollen seasons was related to latitude with multiple major summer-autumn peaks in Brisbane, major spring and minor summer peaks in Sydney and Canberra, and single major spring peaks occurring in Melbourne. The subtropical site of Brisbane showed a higher proportion of grass out of total pollen than more temperate sites. The magnitude of the grass seasonal pollen integral was correlated with pasture greenness, rainfall and number of days over 30 °C, preceding and within the season, up to 100 km radii from monitoring sites. CONCLUSIONS Interannual fluctuations in Australian grass pollen season magnitude are strongly influenced by regional biogeography and both pre- and in-season weather. This first continental scale, Southern Hemisphere standardized aerobiology dataset forms the basis to track shifts in pollen seasonality, biodiversity and impacts on allergic respiratory diseases.
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Affiliation(s)
- Janet M Davies
- School of Biomedical Sciences, Centre Immunity and Infection Control, Centre for Environment, Queensland University of Technology, Herston, 4006, Queensland, Australia; Metro North Hospital and Health Service, Office of Research, Herston, 4006, Queensland, Australia.
| | - Beth Addison Smith
- School of Biomedical Sciences, Centre Immunity and Infection Control, Centre for Environment, Queensland University of Technology, Herston, 4006, Queensland, Australia
| | - Andelija Milic
- School of Biomedical Sciences, Centre Immunity and Infection Control, Centre for Environment, Queensland University of Technology, Herston, 4006, Queensland, Australia
| | - Bradley Campbell
- School of Biomedical Sciences, Centre Immunity and Infection Control, Centre for Environment, Queensland University of Technology, Herston, 4006, Queensland, Australia
| | - Shanice Van Haeften
- School of Biomedical Sciences, Centre Immunity and Infection Control, Centre for Environment, Queensland University of Technology, Herston, 4006, Queensland, Australia
| | - Pamela Burton
- Department of Immunology, Campbelltown Hospital, Campbelltown, Sydney, New South Wales, 2751, Australia
| | - Benedict Keaney
- The Australian National University, Canberra, Australian Capital Territory, 2601, Australia
| | - Edwin R Lampugnani
- School of Biosciences, The University of Melbourne, Parkville, Victoria, 3010, Australia
| | - Don Vicendese
- The Melbourne School of Population and Global Health, University of Melbourne, Parkville, Victoria, 3010, Australia; The Department of Mathematics and Statistics, La Trobe University, Bundoora, Victoria, 3086, Australia
| | - Danielle Medek
- Gold Coast University Hospital, Southport, Queensland, 4215, Australia
| | - Alfredo Huete
- School of Life Sciences, University of Technology Sydney, Ultimo, New South Wales, 2007, Australia
| | - Bircan Erbas
- School of Public Health, LaTrobe University, Bundoora, Victoria, 3086, Australia
| | - Edward Newbigin
- School of Biosciences, The University of Melbourne, Parkville, Victoria, 3010, Australia
| | - Constance H Katelaris
- Department of Immunology, Campbelltown Hospital, Campbelltown, Sydney, New South Wales, 2751, Australia; School of Medicine, Western Sydney University, Sydney, New South Wales, 2751, Australia
| | - Simon G Haberle
- The Australian National University, Canberra, Australian Capital Territory, 2601, Australia
| | - Paul J Beggs
- Department of Earth and Environmental Sciences, Faculty of Science and Engineering, Macquarie University, Sydney, New South Wales, 2109, Australia
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24
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Woehlk C, Von Bülow A, Ghanizada M, Søndergaard MB, Hansen S, Porsbjerg C. Allergen immunotherapy effectively reduces the risk of exacerbations and lower respiratory tract infections in both seasonal and perennial allergic asthma: a nationwide epidemiological study. Eur Respir J 2022; 60:13993003.00446-2022. [PMID: 35618279 DOI: 10.1183/13993003.00446-2022] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Accepted: 05/10/2022] [Indexed: 01/11/2023]
Abstract
BACKGROUND Allergic asthma is associated with increased risk of respiratory tract infections and exacerbations. It remains unclear whether this susceptibility is conditioned by seasonal or by perennial allergy. AIM To investigate perennial allergy compared with seasonal allergy as a risk factor for lower respiratory tract infections and exacerbations in asthma and whether this risk can be reduced by allergen immunotherapy (AIT). METHODOLOGY This is a prospective register-based nationwide study of 18-44-year-olds treated with AIT during 1995-2014. Based on the type of AIT and use of anti-asthmatic drugs, patients were subdivided into two groups: perennial allergic asthma (PAA) versus seasonal allergic asthma (SAA). Data on antibiotics against lower respiratory tract infections (LRTI) and oral corticosteroids for exacerbations were analysed before starting AIT (baseline) and 3 years after completing AIT (follow-up). RESULTS We identified 2688 patients with asthma treated with AIT, of whom 1249 had PAA and 1439 had SAA. At baseline, patients with SAA had more exacerbations (23.8% versus 16.5%, p≤0.001), but there were no differences in LRTI. During the 3-year follow-up, we observed a highly significant reduction of exacerbations with an average decrease of 57% in PAA and 74% in SAA. In addition, we observed a significant reduction of LRTI in both PAA and SAA: 17% and 20% decrease, respectively. CONCLUSION AIT effectively reduced the risk of exacerbations and lower respiratory tract infections in both seasonal and perennial allergic asthma. Perennial allergy is seemingly not a stronger risk factor for respiratory infections and exacerbations than seasonal allergy.
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Affiliation(s)
- Christian Woehlk
- Respiratory Research Unit, Dept Respiratory Medicine, Copenhagen, Denmark
| | - Anna Von Bülow
- Respiratory Research Unit, Dept Respiratory Medicine, Copenhagen, Denmark
| | - Muzhda Ghanizada
- Respiratory Research Unit, Dept Respiratory Medicine, Copenhagen, Denmark
| | | | - Susanne Hansen
- Respiratory Research Unit, Dept Respiratory Medicine, Copenhagen, Denmark
| | - Celeste Porsbjerg
- Respiratory Research Unit, Dept Respiratory Medicine, Copenhagen, Denmark
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25
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Idrose NS, Lodge CJ, Peters RL, Douglass JA, Koplin JJ, Lowe AJ, Perrett KP, Tang MLK, Newbigin EJ, Abramson MJ, Erbas B, Vicendese D, Dharmage SC. The role of short-term grass pollen exposure in food skin-prick test reactivity, food allergy, and eczema flares in children. Pediatr Allergy Immunol 2022; 33:e13862. [PMID: 36282135 PMCID: PMC9828461 DOI: 10.1111/pai.13862] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/17/2022] [Revised: 07/13/2022] [Accepted: 09/20/2022] [Indexed: 11/23/2022]
Abstract
BACKGROUND While the relationship between pollen and respiratory allergies is well-documented, the role of short-term pollen exposure in food allergy and eczema flares has not previously been explored. We aimed to investigate these associations in a population-based sample of children. METHODS We investigated 1- (n = 1108) and 6-year-old (n = 675) children in the grass pollen season from the HealthNuts cohort. Grass pollen concentrations were considered on the day of testing (lag 0), up to three days before (lag 1-lag 3) and cumulatively (lag 0-3). Associations between grass pollen and food skin-prick test reactivity (SPT ≥ 2 mm at age 1 year and ≥ 3 mm at age 6 years), eczema flares, challenge-confirmed food allergy, reaction threshold to oral food challenges (OFC), and serum food-specific IgE levels were analyzed using either logistic or quantile regression models. Atopy and family history of allergic disease were considered as potent effect modifiers. RESULTS Grass pollen at lag 0-3 (every 20 grains/m3 increase) was associated with an up to 1.2-fold increased odds of food SPT reactivity and eczema flares in 6-year-olds. In 1-year-olds, the associations were only observed for peanut in those with a family history of food allergy. Increasing grass pollen concentrations were associated with a lower reaction threshold to OFC and higher serum IgE levels in peanut-allergic 1-year-olds only. CONCLUSION Increasing grass pollen concentration was associated with increased risk of food SPT reactivity and eczema flares in children. The associations in peanut-allergic infants may be related to immune activation and/or peanut and grass pollen cross-reactivity leading to a lower reaction threshold.
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Affiliation(s)
- Nur Sabrina Idrose
- Allergy and Lung Health Unit, Melbourne School of Population and Global Health, Carlton, Victoria, Australia.,Centre for Food and Allergy Research (CFAR), Murdoch Children's Research Institute, Parkville, Victoria, Australia
| | - Caroline J Lodge
- Allergy and Lung Health Unit, Melbourne School of Population and Global Health, Carlton, Victoria, Australia
| | - Rachel L Peters
- Centre for Food and Allergy Research (CFAR), Murdoch Children's Research Institute, Parkville, Victoria, Australia.,Department of Pediatrics, The University of Melbourne, Victoria, Australia
| | - Jo A Douglass
- Department of Clinical Immunology and Allergy, Royal Melbourne Hospital, Parkville, Victoria, Australia.,Department of Medicine, University of Melbourne, Victoria, Australia
| | - Jennifer J Koplin
- Centre for Food and Allergy Research (CFAR), Murdoch Children's Research Institute, Parkville, Victoria, Australia.,Department of Pediatrics, The University of Melbourne, Victoria, Australia
| | - Adrian J Lowe
- Allergy and Lung Health Unit, Melbourne School of Population and Global Health, Carlton, Victoria, Australia.,Centre for Food and Allergy Research (CFAR), Murdoch Children's Research Institute, Parkville, Victoria, Australia
| | - Kirsten P Perrett
- Centre for Food and Allergy Research (CFAR), Murdoch Children's Research Institute, Parkville, Victoria, Australia.,Department of Pediatrics, The University of Melbourne, Victoria, Australia.,Department of Allergy and Immunology, Royal Children's Hospital, Melbourne, Victoria, Australia
| | - Mimi L K Tang
- Centre for Food and Allergy Research (CFAR), Murdoch Children's Research Institute, Parkville, Victoria, Australia.,Department of Pediatrics, The University of Melbourne, Victoria, Australia.,Department of Allergy and Immunology, Royal Children's Hospital, Melbourne, Victoria, Australia
| | - Ed J Newbigin
- School of Biosciences, The University of Melbourne, Victoria, Australia
| | - Michael J Abramson
- School of Public Health & Preventive Medicine, Monash University, Melbourne, Victoria, Australia
| | - Bircan Erbas
- School of Psychology and Public Health, La Trobe University, Bundoora, Australia
| | - Don Vicendese
- Allergy and Lung Health Unit, Melbourne School of Population and Global Health, Carlton, Victoria, Australia.,Department of Mathematics and Statistics, La Trobe University, Bundoora, Victoria, Australia
| | - Shyamali C Dharmage
- Allergy and Lung Health Unit, Melbourne School of Population and Global Health, Carlton, Victoria, Australia.,Centre for Food and Allergy Research (CFAR), Murdoch Children's Research Institute, Parkville, Victoria, Australia
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26
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Yazar B, Meydanlioglu A. The prevalence and associated factors of asthma, allergic rhinitis, and eczema in Turkish children and adolescents. Pediatr Pulmonol 2022; 57:2491-2501. [PMID: 35809022 DOI: 10.1002/ppul.26065] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/30/2022] [Revised: 05/14/2022] [Accepted: 06/25/2022] [Indexed: 11/11/2022]
Abstract
AIM We aim to determine the prevalence and related risk factors of asthma and allergic diseases in school children and adolescent in Konya, Turkey, and to compare this prevalence with that of 11 years ago. METHODS This descriptive correlational study also includes the third phase of the International Study of Asthma and Allergies in Childhood protocol. A total of 2220 students aged between 6 and 18 took part in this study. RESULTS In our study, prevalence of wheezing of 21.8%, eczema of 4.3%, and allergic rhinitis of 43.2% were found in students until this age. In the study, student smoking, school location, history of asthma in the family, mold or moisture at home, and mother's smoking now were related factors for wheezing, while eating habits, breastfeeding, and student's gender were determined as related factors for allergic rhinitis symptoms in the past 12 months. In addition, having a pet, eating habits, and school level were determined as related factors for eczema symptoms in the past 12 months (p < 0.05). As a result of comparison of the findings of this study with the results of the study conducted by Güner et al., it was determined that the rates of wheezing and allergic rhinitis had increased, whereas the rate of eczema had decreased (p < 0.05). CONCLUSION It was determined that under the effect of urbanization in Konya, the prevalence of asthma and allergic rhinitis in students had increased, while the prevalence of eczema had decreased.
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Affiliation(s)
- Birgul Yazar
- Ali Kemal Belviranlı Obstetrics and Pediatrics Hospital, Konya, Turkey
| | - Ayse Meydanlioglu
- Department of Community Health Nursing, Akdeniz University Faculty of Nursing, Antalya, Turkey
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27
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Prenzel F, Treudler R, Lipek T, vom Hove M, Kage P, Kuhs S, Kaiser T, Bastl M, Bumberger J, Genuneit J, Hornick T, Klotz S, Zarnowski J, Boege M, Zebralla V, Simon JC, Dunker S. Invasive Growth of Ailanthus altissima Trees is Associated with a High Rate of Sensitization in Atopic Patients. J Asthma Allergy 2022; 15:1217-1226. [PMID: 36071746 PMCID: PMC9443999 DOI: 10.2147/jaa.s373177] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Accepted: 08/15/2022] [Indexed: 11/23/2022] Open
Affiliation(s)
- Freerk Prenzel
- Leipziger Interdisciplinary Center for Allergy (LICA), Comprehensive Allergy Center, Leipzig, Germany
- University of Leipzig, Medical Center, Department of Pediatrics, Leipzig, Germany
| | - Regina Treudler
- Leipziger Interdisciplinary Center for Allergy (LICA), Comprehensive Allergy Center, Leipzig, Germany
- University of Leipzig, Medical Center, Department of Dermatology, Venerology and Allergy, Leipzig, Germany
| | - Tobias Lipek
- Leipziger Interdisciplinary Center for Allergy (LICA), Comprehensive Allergy Center, Leipzig, Germany
- University of Leipzig, Medical Center, Department of Pediatrics, Leipzig, Germany
| | - Maike vom Hove
- Leipziger Interdisciplinary Center for Allergy (LICA), Comprehensive Allergy Center, Leipzig, Germany
- University of Leipzig, Medical Center, Department of Pediatrics, Leipzig, Germany
| | - Paula Kage
- Leipziger Interdisciplinary Center for Allergy (LICA), Comprehensive Allergy Center, Leipzig, Germany
- University of Leipzig, Medical Center, Department of Dermatology, Venerology and Allergy, Leipzig, Germany
| | - Simone Kuhs
- Leipziger Interdisciplinary Center for Allergy (LICA), Comprehensive Allergy Center, Leipzig, Germany
- University of Leipzig, Medical Center, Institute of Laboratory Medicine, Clinical Chemistry and Molecular Diagnostics, Leipzig, Germany
| | - Thorsten Kaiser
- Leipziger Interdisciplinary Center for Allergy (LICA), Comprehensive Allergy Center, Leipzig, Germany
- University of Leipzig, Medical Center, Institute of Laboratory Medicine, Clinical Chemistry and Molecular Diagnostics, Leipzig, Germany
| | - Maximilian Bastl
- Medical University of Vienna, Department of Otorhinolaryngology, Vienna, Austria
| | - Jan Bumberger
- Helmholtz-Centre for Environmental Research (UFZ), Department Monitoring and Exploration Technologies, Leipzig, Germany
- Helmholtz-Centre for Environmental Research (UFZ), Research Data Management, Leipzig, Germany
- German Centre for Integrative Biodiversity Research (iDiv) Halle, Jena, Leipzig, Germany
| | - Jon Genuneit
- Pediatric Epidemiology, Department of Pediatrics, Medical Faculty, Leipzig University, Leipzig, Germany
- German Center for Child and Youth Health, Leipzig/ Dresden, Dresden, Germany
| | - Thomas Hornick
- German Centre for Integrative Biodiversity Research (iDiv) Halle, Jena, Leipzig, Germany
- Helmholtz-Centre for Environmental Research (UFZ), Department Physiological Diversity, Leipzig, Germany
| | - Stefan Klotz
- German Centre for Integrative Biodiversity Research (iDiv) Halle, Jena, Leipzig, Germany
- Helmholtz-Centre for Environmental Research (UFZ), Department Community Ecology, Halle, Germany
| | - Julia Zarnowski
- Leipziger Interdisciplinary Center for Allergy (LICA), Comprehensive Allergy Center, Leipzig, Germany
- University of Leipzig, Medical Center, Department of Dermatology, Venerology and Allergy, Leipzig, Germany
| | - Maren Boege
- Leipziger Interdisciplinary Center for Allergy (LICA), Comprehensive Allergy Center, Leipzig, Germany
- University of Leipzig, Medical Center, Department of Otorhinolaryngology, Head and Neck Surgery, Leipzig, Germany
| | - Veit Zebralla
- Leipziger Interdisciplinary Center for Allergy (LICA), Comprehensive Allergy Center, Leipzig, Germany
- University of Leipzig, Medical Center, Department of Otorhinolaryngology, Head and Neck Surgery, Leipzig, Germany
| | - Jan-Christoph Simon
- Leipziger Interdisciplinary Center for Allergy (LICA), Comprehensive Allergy Center, Leipzig, Germany
- University of Leipzig, Medical Center, Department of Dermatology, Venerology and Allergy, Leipzig, Germany
| | - Susanne Dunker
- German Centre for Integrative Biodiversity Research (iDiv) Halle, Jena, Leipzig, Germany
- Helmholtz-Centre for Environmental Research (UFZ), Department Physiological Diversity, Leipzig, Germany
- Correspondence: Susanne Dunker, Helmholtz Centre for Environmental Research – UFZ, Leipzig, Germany, Tel +49 341 9733170, Email
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Pollen Exposure and Cardiopulmonary Health Impacts in Adelaide, South Australia. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:ijerph19159093. [PMID: 35897462 PMCID: PMC9331296 DOI: 10.3390/ijerph19159093] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/20/2022] [Revised: 07/22/2022] [Accepted: 07/23/2022] [Indexed: 11/22/2022]
Abstract
(1) Background: Limited research has suggested that cardiopulmonary health outcomes should be considered in relation to pollen exposure. This study sets out to test the relationship between pollen types (grasses, trees, weeds) and cardiovascular, lower respiratory and COPD health outcomes using 15 years (2003–2017) of data gathered in Adelaide, South Australia; (2) Methods: A time-series analysis by months was conducted using cardiopulmonary data from hospital admissions, emergency presentations and ambulance callouts in relation to daily pollen concentrations in children (0–17) for lower respiratory outcomes and for adults (18+). Incidence rate ratios (IRR) were calculated over lags from 0 to 7 days; (3) Results: IRR increases in cardiovascular outcomes in March, May, and October were related to grass pollen, while increases in July, November, and December were related to tree pollen. IRRs ranged from IRR 1.05 (95% confidence interval (CI) 1.00–1.10) to 1.25 (95% CI 1.12–1.40). COPD increases related to grass pollen occurred only in May. Pollen-related increases were observed for lower respiratory outcomes in adults and in children; (4) Conclusion: Notable increases in pollen-related associations with cardiopulmonary outcomes were not restricted to any one season. Prevention measures for pollen-related health effects should be widened to consider cardiopulmonary outcomes.
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Wang W, Lin J, Zhou X, Wang C, Huang M, Cai S, Chen P, Lin Q, Zhou J, Gu Y, Yuan Y, Sun D, Yang X, Yang L, Huo J, Chen Z, Jiang P, Zhang J, Ye X, Liu H, Tang H, Liu R, Liu C, Zhang W, Hu C, Chen Y, Liu X, Dai L, Zhou W, Huang Y, Xu J. Associations between comorbidities and annual incidence plus frequency of asthma exacerbation hospitalisation during the past year: data from CARN study. BMC Pulm Med 2022; 22:261. [PMID: 35778740 PMCID: PMC9250194 DOI: 10.1186/s12890-022-02038-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2022] [Accepted: 06/09/2022] [Indexed: 02/08/2023] Open
Abstract
Purpose While asthma comorbidities are associated with higher health care utilisation, lower quality of life and poorer asthma control, the impact of asthma comorbidities on hospitalisation for asthma exacerbation (H-AX) remains less recognised. We aim to analyse the impact of asthma comorbidities on H-AX. Methods Based on a national survey on asthma control and disease perception (CARN 2015 study), we analysed the impact of comorbidities on annual incidence and frequency of H-AX in China. Information on demographic characteristics, asthma comorbidities and annual incidence and frequency of H-AX were presented in this study. Results Among 3875 ambulatory asthma patients, 75.9% (2941/3875) had comorbidities, and 26.4% (1017/3858) experienced H-AX during past year. After adjusting for confounding factors such as demographic data, smoking status and asthma control, COPD [OR = 2.189, 95% CI (1.673, 2.863)] and coronary heart disease [OR = 1.387, 95% CI (1.032, 1.864)] were associated with higher annual incidence, while allergic rhinitis [OR = 0.692, 95% CI (0.588, 0.815)] was associated with lower annual incidence, of H-AX. In terms of frequency, allergic rhinitis [OR = 1.630, 95% CI (1.214, 2.187)], COPD [OR = 1.472, 95% CI (1.021, 2.122)] and anxiety [OR = 2.609, 95% CI (1.051, 6.477)] showed statistically significant correlation with frequent H-AX. Conclusions COPD and coronary heart disease were associated with higher annual incidence, while allergic rhinitis was associated with lower annual incidence of H-AX. Allergic rhinitis, COPD and anxiety were associated with frequent H-AX. Comorbidities may have an important role in the risk and frequency of annual hospitalisations due to asthma exacerbation. The goal of asthma control should rely on a multi-disciplinary treatment protocol.
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Affiliation(s)
- Wenqiao Wang
- Department of Pulmonary and Critical Care Medicine, China-Japan Friendship Hospital, Beijing, 100029, China
| | - Jiangtao Lin
- Department of Pulmonary and Critical Care Medicine, China-Japan Friendship Hospital, Beijing, 100029, China.
| | - Xin Zhou
- Department of Respiration, Shanghai Central Hospital, Shanghai, China
| | - Changzheng Wang
- Department of Respiration, Xinqiao Hospital, Third Military Medical University, Chongqing, China
| | - Mao Huang
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Shaoxi Cai
- Department of Respiration, Nanfang Hospital, Guangzhou, China
| | - Ping Chen
- Department of Respiratory Diseases, General Hospital of Shenyang Military Command, Shenyang, China
| | - Qichang Lin
- Department of Respiration, The First Affiliated Hospital of Fujian Medical University, Fuzhou, China
| | - Jianying Zhou
- Department of Respiration, The First Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China
| | - Yuhai Gu
- Department of Respiration, Qinghai People's Hospital, Xining, China
| | - Yadong Yuan
- Department of Respiration, The Second Hospital of Hebei Medical University, Shijiazhuang, China
| | - Dejun Sun
- Department of Pulmonary and Critical Care Medicine, Inner Mongolia People's Hospital, Hohhot, China
| | - Xiaohong Yang
- Department of Pulmonary and Critical Care Medicine, People's Hospital of Xinjiang Uygur Autonomous Region, Urumqi, China
| | - Lan Yang
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Jianmin Huo
- Department of Respiration, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Zhuochang Chen
- Department of Respiration, Henan Provincial People's Hospital, Zhengzhou, China
| | - Ping Jiang
- Department of Respiration, Tianjin First Central Hospital, Tianjin, China
| | - Jie Zhang
- Department of Pulmonary and Critical Care Medicine, The Second Hospital of Jilin University, Changchun, China
| | - Xianwei Ye
- Department of Respiration, Guizhou Provincial People's Hospital, Guiyang, China
| | - Huiguo Liu
- Department of Respiration, Tongji Hospital, Wuhan, China
| | - Huaping Tang
- Department of Respiration, Qingdao Municipal Hospital, Qingdao, Shandong, China
| | - Rongyu Liu
- Department of Respiration, The First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Chuntao Liu
- Department of Respiratory and Critical Care Medicine, West China School of Medicine and West China Hospital, Sichuan University, Chengdu, China
| | - Wei Zhang
- Department of Respiration, The First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Chengping Hu
- Department of Respiration, Xiangya Hospital, Changsha, China
| | - Yiqiang Chen
- Department of Respiration, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Xiaoju Liu
- Department of Respiration, The First Affiliated Hospital of Lanzhou University, Lanzhou, China
| | - Luming Dai
- Department of Respiration, Kunming General Hospital of the People's Liberation Army, Kunming, China
| | - Wei Zhou
- Department of Respiration, General Hospital of Ningxia Medical University, Yinchuan, China
| | - Yijiang Huang
- Department of Respiration, Hainan General Hospital, Haikou, China
| | - Jianying Xu
- Department of Respiration, Shanxi Bethune Hospital, Taiyuan, China
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30
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Idrose NS, Lodge CJ, Erbas B, Douglass JA, Bui DS, Dharmage SC. A Review of the Respiratory Health Burden Attributable to Short-Term Exposure to Pollen. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:ijerph19127541. [PMID: 35742795 PMCID: PMC9224249 DOI: 10.3390/ijerph19127541] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Revised: 06/15/2022] [Accepted: 06/19/2022] [Indexed: 02/04/2023]
Abstract
Respiratory diseases such as asthma, allergic rhinitis (AR) and chronic obstructive pulmonary disease (COPD) affect millions worldwide and pose a significant global public health burden. Over the years, changes in land use and climate have increased pollen quantity, allergenicity and duration of the pollen season, thus increasing its impact on respiratory disease. Many studies have investigated the associations between short-term ambient pollen (i.e., within days or weeks of exposure) and respiratory outcomes. Here, we reviewed the current evidence on the association between short-term outdoor pollen exposure and thunderstorm asthma (TA), asthma and COPD hospital presentations, general practice (GP) consultations, self-reported respiratory symptoms, lung function changes and their potential effect modifiers. The literature suggests strong evidence of an association between ambient pollen concentrations and almost all respiratory outcomes mentioned above, especially in people with pre-existing respiratory diseases. However, the evidence on sub-clinical lung function changes, COPD, and effect modifiers other than asthma, hay fever and pollen sensitisation are still scarce and requires further exploration. Better understanding of the implications of pollen on respiratory health can aid healthcare professionals to implement appropriate management strategies.
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Affiliation(s)
- Nur Sabrina Idrose
- Allergy and Lung Health Unit, Melbourne School of Population and Global Health, The University of Melbourne, Melbourne, VIC 3053, Australia; (N.S.I.); (C.J.L.); (D.S.B.)
- Centre for Food and Allergy Research, Murdoch Children’s Research Institute, Melbourne, VIC 3052, Australia
| | - Caroline J. Lodge
- Allergy and Lung Health Unit, Melbourne School of Population and Global Health, The University of Melbourne, Melbourne, VIC 3053, Australia; (N.S.I.); (C.J.L.); (D.S.B.)
| | - Bircan Erbas
- School of Psychology and Public Health, La Trobe University, Bundoora, VIC 3086, Australia;
| | - Jo A. Douglass
- Department of Clinical Immunology and Allergy, Royal Melbourne Hospital, Parkville, VIC 3050, Australia;
- Department of Medicine, University of Melbourne, Melbourne, VIC 3052, Australia
| | - Dinh S. Bui
- Allergy and Lung Health Unit, Melbourne School of Population and Global Health, The University of Melbourne, Melbourne, VIC 3053, Australia; (N.S.I.); (C.J.L.); (D.S.B.)
| | - Shyamali C. Dharmage
- Allergy and Lung Health Unit, Melbourne School of Population and Global Health, The University of Melbourne, Melbourne, VIC 3053, Australia; (N.S.I.); (C.J.L.); (D.S.B.)
- Centre for Food and Allergy Research, Murdoch Children’s Research Institute, Melbourne, VIC 3052, Australia
- Correspondence: ; Tel.: +61-383-440-737
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31
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The Effect of Outdoor Environmental Exposure on Readmission Rates for Children and Adolescents with Asthma-A Systematic Review. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:ijerph19127457. [PMID: 35742711 PMCID: PMC9223649 DOI: 10.3390/ijerph19127457] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/27/2022] [Revised: 06/14/2022] [Accepted: 06/14/2022] [Indexed: 12/10/2022]
Abstract
The burden of asthma readmission for children and adolescents is approximately 10% worldwide. Research has been synthesised for behavioural and indoor impacts; however, no such synthesis has been conducted for outdoor environmental exposures. This systematic review aims to evaluate and synthesise the impact the outdoor environment has on readmission rates for children or adolescents with asthma. We conducted a systematic search of seven databases and hand searched reference lists of articles published up until 18 January 2021. There were 12 out of 392 studies eligible for inclusion. Overall, most studies showed that outdoor environments impact on readmission; however, the strength of association is seen to be stronger in a particular subpopulation of each study depending on the exposure investigated. The evidence for the association between outdoor environmental exposure and readmission rates for children or adolescents with asthma is increasing; however, it is complicated by potential confounders such as socioeconomic factors, ethnicity, indoor air pollutants, and other behavioural factors. Further research is required to differentiate between them. Additionally, further studies need to be undertaken in further countries other than the United States of America to understand the full relationship.
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32
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Klimek L, Brehler R, Mösges R, Demoly P, Mullol J, Wang DY, O'Hehir RE, Didier A, Kopp M, Bos C, Karagiannis E. Update about Oralair® as a treatment for grass pollen allergic rhinitis. Hum Vaccin Immunother 2022; 18:2066424. [PMID: 35704772 PMCID: PMC9302518 DOI: 10.1080/21645515.2022.2066424] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
Sublingual immunotherapy (SLIT) is a well-tolerated, safe, and effective approach to treating allergic rhinitis (AR). Oralair® is a five-grass pollen SLIT tablet containing natural pollen allergens from five of the major grass species responsible for seasonal AR due to grass pollen allergy. Recommended use is in a pre-coseasonal regimen, starting daily treatment approximately 4 months before the start of the pollen season, with treatment then continued daily throughout the season; treatment should continue for 3–5 y. Clinical efficacy and safety of Oralair® in patients with grass pollen-induced AR has been demonstrated in a comprehensive clinical development program of randomized controlled trials. Effectiveness has been substantiated in subsequent observational studies with sustained efficacy following treatment cessation and a favorable level of adherence, quality of life, benefit, and satisfaction for the patients. Supportive evidence for a benefit in reducing the risk or delaying the development of allergic asthma is emerging.
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Affiliation(s)
- L Klimek
- Center for Rhinology and Allergology, Wiesbaden, Germany
| | - R Brehler
- Department of Skin Diseases, Outpatient Clinic for Allergology, Occupational Dermatology and Environmental Medicine, Münster University Hospital, Münster, Germany
| | - R Mösges
- Institute of Medical Statistics and Computational Biology (IMSB), Medical Faculty of the University of Cologne, Cologne, Germany.,CRI - Clinical Research International Ltd, Hamburg, Germany.,ClinCompetence Cologne GmbH, Cologne, Germany
| | - P Demoly
- Division of Allergy, Department of Pulmonology, Hôpital Arnaud de Villeneuve, University Hospital of Montpellier, Montpellier, France.,Université, Equipe EPAR - IPLESPUMR-S 1136 INSERM-Sorbonne, Paris, France
| | - J Mullol
- Rhinology Unit & Smell Clinic, ENT Department, Hospital Clínic; Clinical & Experimental Respiratory Immunoallergy, IDIBAPS, CIBERES, University of Barcelona, Barcelona, Spain
| | - D Y Wang
- Department of Otolaryngology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - R E O'Hehir
- Department of Allergy, Immunology and Respiratory Medicine, Central Clinical School, Monash University, Melbourne, Australia
| | - A Didier
- Pôle des Voies Respiratoires, Hôpital Larrey, CHU de Toulouse and Centre de Physiopathologie Toulouse Purpan, INSERM U1043, CNRS UMR 5282, Université Toulouse III, Toulouse, France
| | - M Kopp
- Clinic of Pediatric and Adolescent Medicine, Airway Research Center North (ARCN), Member of the German Lung Center (DZL), Lübeck University, Lübeck, Germany
| | - C Bos
- Global Medical Affairs Department, Stallergenes Greer, Antony, France
| | - E Karagiannis
- Global Medical Affairs Department, Stallergenes Greer, Antony, France
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33
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Batra M, Vicendese D, Newbigin E, Lambert KA, Tang M, Abramson MJ, Dharmage SC, Erbas B. The association between outdoor allergens - pollen, fungal spore season and high asthma admission days in children and adolescents. INTERNATIONAL JOURNAL OF ENVIRONMENTAL HEALTH RESEARCH 2022; 32:1393-1402. [PMID: 33615917 DOI: 10.1080/09603123.2021.1885633] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2020] [Accepted: 02/01/2021] [Indexed: 06/12/2023]
Abstract
Periods when asthma admissions peaks have serious implications for asthma sufferers and hospitals. We assessed the association between aeroallergen exposure and childhood asthma peak periods during two grass pollen seasons using the Melbourne Air Pollen Children and Adolescent Health (MAPCAH) study conducted in Melbourne, Australia. Two peak periods were identified. Effect modifications by atopy and sex were considered. All pollen 2 days prior was associated with increased odds of these peak periods. Same day fungal spores, but not pollen, were important. Grass at lag 2 was associated with increased odds 1.03 (95%CI 1.01, 1.05) as was the same day Alternaria 1.02 (1.00, 1.04) per spore/m3 for boys. In addition to pollen, fungal spores particularly Alternaria may result in days of high exacerbations during pollen seasons. Further guidance is needed to better prepare families/carers with information about the increased risk of asthma attacks in children prior to pollen seasons.
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Affiliation(s)
- Mehak Batra
- Department of Public Health, School of Psychology and Public Health, La Trobe University, Melbourne, Australia
| | - Don Vicendese
- Department of Public Health, School of Psychology and Public Health, La Trobe University, Melbourne, Australia
| | - Edward Newbigin
- School of BioSciences, The University of Melbourne, Melbourne, Australia
| | - Katrina A Lambert
- Department of Public Health, School of Psychology and Public Health, La Trobe University, Melbourne, Australia
| | - Mimi Tang
- Department of Paediatrics, The University of Melbourne, Melbourne, Australia
- Murdoch Children's Research Institute, The Royal Children's HospitalVictoria, Melbourne, Australia
| | - Michael J Abramson
- Allergy and Lung Health Unit, Centre for Epidemiology and Biostatistics, Melbourne School of Population and Global Health, The University of Melbourne, Melbourne, Australia
| | - Shyamali C Dharmage
- Allergy and Lung Health Unit, Centre for Epidemiology and Biostatistics, Melbourne School of Population and Global Health, The University of Melbourne, Melbourne, Australia
| | - Bircan Erbas
- Department of Public Health, School of Psychology and Public Health, La Trobe University, Melbourne, Australia
- Faculty of Public Health, Universitas AirLangga, Surabaya, Indonesia
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34
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Colbert CY, French JC, Brateanu A, Pacheco SE, Khatri SB, Sapatnekar S, Vacharathit V, Pien LC, Prelosky-Leeson A, LaRocque R, Mark B, Salas RN. An Examination of the Intersection of Climate Change, the Physician Specialty Workforce, and Graduate Medical Education in the U.S. TEACHING AND LEARNING IN MEDICINE 2022; 34:329-340. [PMID: 34011226 DOI: 10.1080/10401334.2021.1913417] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Revised: 04/07/2021] [Accepted: 04/25/2021] [Indexed: 06/12/2023]
Abstract
Issue: As U.S. healthcare systems plan for future physician workforce needs, the systemic impacts of climate change, a worldwide environmental and health crisis, have not been factored in. The current focus on increasing the number of trained physicians and optimizing efficiencies in healthcare delivery may be insufficient. Graduate medical education (GME) priorities and training should be considered in order to prepare a climate-educated physician workforce. Evidence: We used a holistic lens to explore the available literature regarding the intersection of future physician workforce needs, GME program priorities, and resident education within the larger context of climate change. Our interinstitutional, transdisciplinary team brought perspectives from their own fields, including climate science, climate and health research, and medical education to provide recommendations for building a climate-educated physician workforce. Implications: Acknowledging and preparing for the effects of climate change on the physician workforce will require identification of workforce gaps, changes to GME program priorities, and education of trainees on the health and societal impacts of climate change. Alignment of GME training with workforce considerations and climate action and adaptation initiatives will be critical in ensuring the U.S. has a climate-educated physician workforce capable of addressing health and healthcare system challenges. This article offers a number of recommendations for physician workforce priorities, resident education, and system-level changes to better prepare for the health and health system impacts of climate change.
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Affiliation(s)
- Colleen Y Colbert
- Cleveland Clinic Lerner College of Medicine of Case, Western Reserve University, Cleveland, Ohio, USA
- Office of Educator and Scholar Development, Education Institute, Cleveland Clinic, Cleveland, Ohio, USA
| | - Judith C French
- Cleveland Clinic Lerner College of Medicine of Case, Western Reserve University, Cleveland, Ohio, USA
- General Surgery Residency Program, Digestive Disease and Surgery Institute, Cleveland Clinic, Cleveland, Ohio, USA
| | - Andrei Brateanu
- Cleveland Clinic Lerner College of Medicine of Case, Western Reserve University, Cleveland, Ohio, USA
- Internal Medicine Residency Program, Cleveland Clinic, Cleveland, Ohio, USA
| | - Susan E Pacheco
- Department of Pediatrics, University of Texas McGovern Medical School, Houston, Texas, USA
| | - Sumita B Khatri
- Cleveland Clinic Lerner College of Medicine of Case, Western Reserve University, Cleveland, Ohio, USA
- Respiratory Institute at Cleveland Clinic, Cleveland, Ohio, USA
| | - Suneeti Sapatnekar
- Cleveland Clinic Lerner College of Medicine of Case, Western Reserve University, Cleveland, Ohio, USA
- Robert T. Tomsich Pathology and Laboratory Medicine Institute, Cleveland Clinic, Cleveland, Ohio, USA
| | - Voranaddha Vacharathit
- General Surgery Residency Program, Digestive Disease and Surgery Institute, Cleveland Clinic, Cleveland, Ohio, USA
| | - Lily C Pien
- Cleveland Clinic Lerner College of Medicine of Case, Western Reserve University, Cleveland, Ohio, USA
- Office of Educator and Scholar Development, Education Institute, Cleveland Clinic, Cleveland, Ohio, USA
- Department of Allergy and Clinical Immunology, Respiratory Institute, Cleveland Clinic, Cleveland, Ohio, USA
| | - Allison Prelosky-Leeson
- Office of Educator and Scholar Development, Education Institute, Cleveland Clinic, Cleveland, Ohio, USA
| | - Regina LaRocque
- Harvard Medical School, Boston, Massachusetts, USA
- Division of Infectious Disease, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Bryan Mark
- Department of Geography and Byrd Polar and Climate Research Center, Ohio State University, Columbus, Ohio, USA
| | - Renee N Salas
- Harvard Medical School, Boston, Massachusetts, USA
- Department of Emergency Medicine, Massachusetts General Hospital, Boston, Massachusetts, USA
- Harvard Global Health Institute, Cambridge, Massachusetts, USA
- Center for Climate, Health, and the Global Environment at the Harvard T.H. Chan School of Public Health, Boston, Massachusetts, USA
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35
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Agache I, Sampath V, Aguilera J, Akdis CA, Akdis M, Barry M, Bouagnon A, Chinthrajah S, Collins W, Dulitzki C, Erny B, Gomez J, Goshua A, Jutel M, Kizer KW, Kline O, LaBeaud AD, Pali-Schöll I, Perrett KP, Peters RL, Plaza MP, Prunicki M, Sack T, Salas RN, Sindher SB, Sokolow SH, Thiel C, Veidis E, Wray BD, Traidl-Hoffmann C, Witt C, Nadeau KC. Climate change and global health: A call to more research and more action. Allergy 2022; 77:1389-1407. [PMID: 35073410 DOI: 10.1111/all.15229] [Citation(s) in RCA: 44] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2021] [Revised: 01/06/2022] [Accepted: 01/11/2022] [Indexed: 12/15/2022]
Abstract
There is increasing understanding, globally, that climate change and increased pollution will have a profound and mostly harmful effect on human health. This review brings together international experts to describe both the direct (such as heat waves) and indirect (such as vector-borne disease incidence) health impacts of climate change. These impacts vary depending on vulnerability (i.e., existing diseases) and the international, economic, political, and environmental context. This unique review also expands on these issues to address a third category of potential longer-term impacts on global health: famine, population dislocation, and environmental justice and education. This scholarly resource explores these issues fully, linking them to global health in urban and rural settings in developed and developing countries. The review finishes with a practical discussion of action that health professionals around the world in our field can yet take.
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Affiliation(s)
- Ioana Agache
- Faculty of Medicine, Transylvania University, Brasov, Romania
| | - Vanitha Sampath
- Sean N. Parker Center for Allergy and Asthma Research, Stanford University, Stanford, California, USA
| | - Juan Aguilera
- Sean N. Parker Center for Allergy and Asthma Research, Stanford University, Stanford, California, USA
| | - Cezmi A Akdis
- Swiss Institute of Allergy and Asthma Research (SIAF), University Zurich, Davos, Switzerland
| | - Mubeccel Akdis
- Swiss Institute of Allergy and Asthma Research (SIAF), University Zurich, Davos, Switzerland
| | - Michele Barry
- Center for Innovation in Global Health, Stanford University, Stanford, California, USA
| | - Aude Bouagnon
- Department of Physiology, University of California San Francisco, San Francisco, California, USA
| | - Sharon Chinthrajah
- Sean N. Parker Center for Allergy and Asthma Research, Stanford University, Stanford, California, USA
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, Stanford University, Stanford, California, USA
| | - William Collins
- Sean N. Parker Center for Allergy and Asthma Research, Stanford University, Stanford, California, USA
- Division of Hospital Medicine, Stanford University, Stanford, California, USA
| | - Coby Dulitzki
- Sean N. Parker Center for Allergy and Asthma Research, Stanford University, Stanford, California, USA
| | - Barbara Erny
- Department of Internal Medicine, Division of Med/Pulmonary and Critical Care Medicine, Stanford University, Stanford, California, USA
| | - Jason Gomez
- Stanford School of Medicine, Stanford, California, USA
- Stanford Graduate School of Business, Stanford, California, USA
| | - Anna Goshua
- Stanford School of Medicine, Stanford, California, USA
| | - Marek Jutel
- Department of Clinical Immunology, Wroclaw Medical University, Wroclaw, Poland
- "ALL-MED" Medical Research Institute, Wroclaw, Poland
| | | | - Olivia Kline
- Sean N. Parker Center for Allergy and Asthma Research, Stanford University, Stanford, California, USA
| | - A Desiree LaBeaud
- Department of Pediatrics, Division of Infectious Disease, Stanford University, Stanford, California, USA
| | - Isabella Pali-Schöll
- Comparative Medicine, Interuniversity Messerli Research Institute, University of Veterinary Medicine/Medical University/University Vienna, Vienna, Austria
- Institute of Pathophysiology and Allergy Research, Center of Pathophysiology, Immunology and Infectiology, Medical University of Vienna, Vienna, Austria
| | - Kirsten P Perrett
- Murdoch Children's Research Institute, Parkville, Victoria, Australia
- Department of Pediatrics, University of Melbourne, Parkville, Victoria, Australia
- Royal Children's Hospital, Parkville, Victoria, Australia
| | - Rachel L Peters
- Murdoch Children's Research Institute, Parkville, Victoria, Australia
- Department of Pediatrics, University of Melbourne, Parkville, Victoria, Australia
| | - Maria Pilar Plaza
- Department of Environmental Medicine, Faculty of Medicine, University of Augsburg, Augsburg, Germany
- Institute of Environmental Medicine, Helmholtz Center Munich, German Research Center for Environmental Health, Augsburg, Germany
| | - Mary Prunicki
- Sean N. Parker Center for Allergy and Asthma Research, Stanford University, Stanford, California, USA
| | - Todd Sack
- My Green Doctor Foundation, Jacksonville, Florida, USA
| | - Renee N Salas
- Harvard Global Health Institute, Cambridge, Massachusetts, USA
- Center for Climate, Health, and the Global Environment, Harvard T H Chan School of Public Health, Boston, Massachusetts, USA
| | - Sayantani B Sindher
- Sean N. Parker Center for Allergy and Asthma Research, Stanford University, Stanford, California, USA
| | - Susanne H Sokolow
- Woods Institute for the Environment, Stanford University, Stanford, California, USA
- Marine Science Institute, University of California Santa Barbara, Santa Barbara, California, USA
| | - Cassandra Thiel
- Department of Population Health, NYU Grossman School of Medicine, NY, USA
| | - Erika Veidis
- Center for Innovation in Global Health, Stanford University, Stanford, California, USA
| | - Brittany Delmoro Wray
- Center for Innovation in Global Health, Stanford University, Stanford, California, USA
- Woods Institute for the Environment, Stanford University, Stanford, California, USA
- London School of Hygiene and Tropical Medicine Centre on Climate Change and Planetary Health, London, UK
| | - Claudia Traidl-Hoffmann
- Department of Environmental Medicine, Faculty of Medicine, University of Augsburg, Augsburg, Germany
- Institute of Environmental Medicine, Helmholtz Center Munich, German Research Center for Environmental Health, Augsburg, Germany
- Christine Kühne Center for Allergy Research and Education (CK-CARE), Davos, Switzerland
| | - Christian Witt
- Institute of Physiology, Division of Pneumology, Charité-Universitätsmedizin, Berlin, Germany
| | - Kari C Nadeau
- Sean N. Parker Center for Allergy and Asthma Research, Stanford University, Stanford, California, USA
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, Stanford University, Stanford, California, USA
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36
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Environmental Factors Affecting Diversity, Structure, and Temporal Variation of Airborne Fungal Communities in a Research and Teaching Building of Tianjin University, China. J Fungi (Basel) 2022; 8:jof8050431. [PMID: 35628687 PMCID: PMC9144611 DOI: 10.3390/jof8050431] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Revised: 04/20/2022] [Accepted: 04/20/2022] [Indexed: 01/27/2023] Open
Abstract
Airborne fungi are widely distributed in the environment and may have adverse effects on human health. A 12-month survey on the diversity and concentration of culturable airborne fungi was carried out in a research and teaching building of Tianjin University. Indoor and outdoor environments were analyzed using an HAS-100B air sampler. A total of 667 fungal strains, belonging to 160 species and 73 genera were isolated and identified based on morphological and molecular analysis. The most abundant fungal genera were Alternaria (38.57%), Cladosporium (21.49%), and Aspergillus (5.34%), while the most frequently appearing species was A. alternata (21%), followed by A. tenuissima (12.4%), and C. cladosporioides (9.3%). The concentration of fungi in different environments ranged from 0 to 150 CFU/m3 and was significantly higher outdoor than indoor. Temperature and sampling month were significant factors influencing the whole building fungal community, while relative humidity and wind speed were highly correlated with fungal composition outdoor. Variations in the relative abundance of major airborne fungal taxa at different heights above-ground could lead to different community structures at different floors. Our results may provide valuable information for air quality monitoring and microbial pollution control in university building environments.
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Zapata-Marin S, Schmidt AM, Weichenthal S, Katz DSW, Takaro T, Brook J, Lavigne E. Within city spatiotemporal variation of pollen concentration in the city of Toronto, Canada. ENVIRONMENTAL RESEARCH 2022; 206:112566. [PMID: 34922985 DOI: 10.1016/j.envres.2021.112566] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2021] [Revised: 12/08/2021] [Accepted: 12/11/2021] [Indexed: 06/14/2023]
Abstract
BACKGROUND The exacerbation of asthma and respiratory allergies has been associated with exposure to aeroallergens such as pollen. Within an urban area, tree cover, level of urbanization, atmospheric conditions, and the number of source plants can influence spatiotemporal variations in outdoor pollen concentrations. OBJECTIVE We analyze weekly pollen measurements made between March and October 2018 over 17 sites in Toronto, Canada. The main goals are: to estimate the concentration of different types of pollen across the season; estimate the association, if any, between pollen concentration and environmental variables, and provide a spatiotemporal surface of concentration of different types of pollen across the weeks in the studied period. METHODS We propose an extension of the land-use regression model to account for the temporal variation of pollen levels and the high number of measurements equal to zero. Inference is performed under the Bayesian framework, and uncertainty of predicted values is naturally obtained through the posterior predictive distribution. RESULTS Tree pollen was positively associated with commercial areas and tree cover, and negatively associated with grass cover. Both grass and weed pollen were positively associated with industrial areas and TC brightness and negatively associated with the northing coordinate. The total pollen was associated with a combination of these environmental factors. Predicted surfaces of pollen concentration are shown at some sampled weeks for all pollen types. SIGNIFICANCE The predicted surfaces obtained here can help future epidemiological studies to find possible associations between pollen levels and some health outcome like respiratory allergies at different locations within the study area.
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Affiliation(s)
- Sara Zapata-Marin
- Quantitative Life Sciences Program, McGill University, Montreal, QC, Canada.
| | - Alexandra M Schmidt
- Quantitative Life Sciences Program, McGill University, Montreal, QC, Canada; Department of Epidemiology, Biostatistics, and Occupational Health, McGill University, Montreal, QC, Canada
| | - Scott Weichenthal
- Department of Epidemiology, Biostatistics, and Occupational Health, McGill University, Montreal, QC, Canada
| | - Daniel S W Katz
- Dell Medical School, University of Texas at Austin, Austin, TX, USA
| | - Tim Takaro
- Faculty of Health Sciences, Simon Fraser University, Burnaby, British Columbia, Canada
| | - Jeffrey Brook
- Department of Public Health Sciences, University of Toronto, Toronto, ON, Canada
| | - Eric Lavigne
- Air Health Science Division and Population Studies Division, Health Canada, Ottawa, ON, Canada
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38
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Idrose NS, Vicendese D, Peters RL, Koplin JJ, Douglass JA, Walters EH, Perret JL, Lowe AJ, Tang MLK, Newbigin EJ, Erbas B, Lodge CJ, Dharmage SC. Children With Food Allergy Are at Risk of Lower Lung Function on High-Pollen Days. THE JOURNAL OF ALLERGY AND CLINICAL IMMUNOLOGY. IN PRACTICE 2022; 10:2144-2153.e10. [PMID: 35398553 DOI: 10.1016/j.jaip.2022.03.022] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/17/2021] [Revised: 03/02/2022] [Accepted: 03/18/2022] [Indexed: 12/28/2022]
Abstract
BACKGROUND Grass pollen exposure is a risk factor for childhood asthma hospital attendances. However, its short-term influence on lung function, especially among those with other allergic conditions, has been less well-studied. OBJECTIVE To investigate this association in a population-based sample of children. METHODS Within the HealthNuts cohort, 641 children performed spirometry during the grass pollen season. Grass pollen concentration was considered on the day of testing (lag 0), up to 3 days before (lag 1-lag 3), and cumulatively (lag 0-3). We used linear regression to assess the relevant associations and examined potential interactions with current asthma, hay fever or eczema, and food allergy. RESULTS Associations were observed only in children with allergic disease (P value for interaction ≤ 0.1). In children with food allergy, grass pollen concentration was associated with a lower ratio of forced expiratory volume in 1 second to forced vital capacity (FEV1/FVC) and lower mid-forced expiratory flows (FEF25%-75%) at all lags (eg, at lag 2, FEV1/FVC z-score = -0.50 [95% CI -0.80 to -0.20] and FEF25%--75% z-score = -0.40 [-0.60 to -0.04] per 20 grains/m3 pollen increase), and increased bronchodilator responsiveness (BDR) at lag 2 and lag 3 (eg, at lag 2, BDR = (31 [95% CI -0.005 to 62] mL). In children with current asthma, increasing grass pollen concentration was associated with lower FEF25%-75% and increased BDR, whereas children with current hay fever or eczema had increased BDR only. CONCLUSIONS A proactive approach needs to be enforced to manage susceptible children, especially those with food allergy, before high-grass pollen days.
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Affiliation(s)
- N Sabrina Idrose
- Allergy and Lung Health Unit, Melbourne School of Population and Global Health, The University of Melbourne, Carlton, Melbourne, Victoria, Australia; Centre for Food and Allergy Research, Murdoch Children's Research Institute, Parkville, Melbourne, Victoria, Australia
| | - Don Vicendese
- Allergy and Lung Health Unit, Melbourne School of Population and Global Health, The University of Melbourne, Carlton, Melbourne, Victoria, Australia; Department of Mathematics and Statistics, La Trobe University, Bundoora, Victoria, Australia
| | - Rachel L Peters
- Centre for Food and Allergy Research, Murdoch Children's Research Institute, Parkville, Melbourne, Victoria, Australia; Department of Pediatrics, The University of Melbourne, Parkville, Melbourne, Victoria, Australia
| | - Jennifer J Koplin
- Centre for Food and Allergy Research, Murdoch Children's Research Institute, Parkville, Melbourne, Victoria, Australia; Department of Pediatrics, The University of Melbourne, Parkville, Melbourne, Victoria, Australia
| | - Jo A Douglass
- Department of Clinical Immunology and Allergy, Royal Melbourne Hospital, Parkville, Melbourne, Victoria, Australia; Department of Medicine, University of Melbourne, Parkville, Melbourne, Victoria, Australia
| | - E Haydn Walters
- Allergy and Lung Health Unit, Melbourne School of Population and Global Health, The University of Melbourne, Carlton, Melbourne, Victoria, Australia; Department of Medicine, University of Tasmania, Hobart, Tasmania, Australia
| | - Jennifer L Perret
- Allergy and Lung Health Unit, Melbourne School of Population and Global Health, The University of Melbourne, Carlton, Melbourne, Victoria, Australia
| | - Adrian J Lowe
- Allergy and Lung Health Unit, Melbourne School of Population and Global Health, The University of Melbourne, Carlton, Melbourne, Victoria, Australia; Centre for Food and Allergy Research, Murdoch Children's Research Institute, Parkville, Melbourne, Victoria, Australia
| | - Mimi L K Tang
- Centre for Food and Allergy Research, Murdoch Children's Research Institute, Parkville, Melbourne, Victoria, Australia; Department of Pediatrics, The University of Melbourne, Parkville, Melbourne, Victoria, Australia; Department of Allergy and Immunology, Royal Children's Hospital, Melbourne, Victoria, Australia
| | - Ed J Newbigin
- School of BioSciences, The University of Melbourne, Parkville, Melbourne, Victoria, Australia
| | - Bircan Erbas
- School of Psychology and Public Health, La Trobe University, Bundoora, Victoria, Australia
| | - Caroline J Lodge
- Allergy and Lung Health Unit, Melbourne School of Population and Global Health, The University of Melbourne, Carlton, Melbourne, Victoria, Australia
| | - Shyamali C Dharmage
- Allergy and Lung Health Unit, Melbourne School of Population and Global Health, The University of Melbourne, Carlton, Melbourne, Victoria, Australia; Centre for Food and Allergy Research, Murdoch Children's Research Institute, Parkville, Melbourne, Victoria, Australia.
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39
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Zhang H, Liu S, Li Y, Li J, Ni C, Yang M, Dong J, Wang Z, Qin Z. Dysfunction of S100A4 + effector memory CD8 + T cells aggravates asthma. Eur J Immunol 2022; 52:978-993. [PMID: 35340022 DOI: 10.1002/eji.202149572] [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: 08/11/2021] [Revised: 03/24/2022] [Accepted: 03/25/2022] [Indexed: 11/09/2022]
Abstract
Progressive loss of effector functions, especially IFN-γ secreting capability, in effector memory CD8+ T (CD8+ TEM ) cells plays a crucial role in asthma worsening. However, the mechanisms of CD8+ TEM cell dysfunction remain elusive. Here, we report that S100A4 drives CD8+ TEM cell dysfunction, impairing their protective memory response and promoting asthma worsening in an ovalbumin (OVA)-induced asthmatic murine model. We find that CD8+ TEM cells contain two subsets based on S100A4 expression. S100A4+ subsets exhibit dysfunctional effector phenotypes with increased proliferative capability, whereas S100A4- subsets retain effector function but are more inclined to apoptosis, giving rise a dysfunctional CD8+ TEM cell pool. Mechanistically, S100A4 upregulation of mitochondrial metabolism results in a decrease of acetyl-CoA levels, which impair the transcription of effector genes, especially ifn-γ, facilitating cell survival, tolerance and memory potential. Our findings thus reveal general insights into how S100A4 CD8+ TEM cells reprogram into dysfunctional and less protective phenotypes to aggravate asthma. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Huilei Zhang
- Key Laboratory of Protein and Peptide Pharmaceuticals, Institute of Biophysics, Chinese Academy of Sciences, Beijing, 100101, China.,Medical Research Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou, Henan, 450052, China.,University of Chinese Academy of Sciences, Beijing, 100101, China
| | - Shuangqing Liu
- Key Laboratory of Protein and Peptide Pharmaceuticals, Institute of Biophysics, Chinese Academy of Sciences, Beijing, 100101, China.,Medical Research Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou, Henan, 450052, China.,University of Chinese Academy of Sciences, Beijing, 100101, China
| | - Yanan Li
- Key Laboratory of Protein and Peptide Pharmaceuticals, Institute of Biophysics, Chinese Academy of Sciences, Beijing, 100101, China
| | - Jianru Li
- Key Laboratory of Protein and Peptide Pharmaceuticals, Institute of Biophysics, Chinese Academy of Sciences, Beijing, 100101, China.,University of Chinese Academy of Sciences, Beijing, 100101, China
| | - Chen Ni
- Medical Research Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou, Henan, 450052, China
| | - Ming Yang
- Priority Research Centre for Healthy Lungs, School of Biomedical Sciences & Pharmacy, Faculty of Health and Hunter Medical Research Institute, University of Newcastle, Callaghan, NSW 2300, Australia
| | - Jun Dong
- German Rheumatism Research Center (DRFZ), a Leibniz Institute, Berlin, 10117, Germany
| | - Zhaoqing Wang
- Key Laboratory of Protein and Peptide Pharmaceuticals, Institute of Biophysics, Chinese Academy of Sciences, Beijing, 100101, China
| | - Zhihai Qin
- Key Laboratory of Protein and Peptide Pharmaceuticals, Institute of Biophysics, Chinese Academy of Sciences, Beijing, 100101, China.,Medical Research Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou, Henan, 450052, China.,University of Chinese Academy of Sciences, Beijing, 100101, China
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40
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Di Cicco M, Del Tufo E, Fasola S, Gracci S, Marchi MG, Fibbi L, Cilluffo G, Ferrante G, Peroni DG, La Grutta S. The Effect of Outdoor Aeroallergens on Asthma Hospitalizations in Children in North-Western Tuscany, Italy. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:ijerph19063586. [PMID: 35329272 PMCID: PMC8949088 DOI: 10.3390/ijerph19063586] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/15/2022] [Revised: 03/04/2022] [Accepted: 03/15/2022] [Indexed: 02/01/2023]
Abstract
Few data are currently available on the effects of aeroallergens in triggering respiratory symptoms in children. To evaluate the potential effects of daily outdoor aeroallergens loads on childhood admissions, in this case-crossover study, we analyzed data from 85 children hospitalized at the University Hospital of Pisa, Italy, for asthma or asthma-like symptoms without respiratory infection, between 2010 and 2019. Data were linked to outdoor allergens, temperature, nitrogen dioxide, and relative humidity observed during the same period. A 10-grains/m3 increase in the total aeroallergen concentration was associated with an increased risk of admission at lag 0 (OR = 1.054, 95% CI: 1.011–1.098), with a smaller effect at lag 1 (OR = 1.037, 95% CI: 1.008–1.067) and lag 2 (OR = 1.021, 95% CI: 1.003–1.039). Trends to larger effects were observed in children with sensitization to one or more aeroallergens (OR = 1.085, 95% CI: 1.004–1.173 at lag 0), in males (OR = 1.069, 95% CI: 1.009–1.132 at lag 0) and in older children (OR = 1.065, 95% CI: 1.007–1.127 at lag 0). Our study shows an association between increased outdoor allergens loads and asthma or asthma-like symptoms in children up to at least two days prior to hospitalization, suggesting that tracking aeroallergen counts may be useful to improve the management of respiratory allergic diseases.
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Affiliation(s)
- Maria Di Cicco
- Department of Clinical and Experimental Medicine, University of Pisa, Via Roma n. 55, 56126 Pisa, Italy; (E.D.T.); (S.G.); (D.G.P.)
- Allergology Section, Pediatrics Unit, Pisa University Hospital, Via Roma n. 67, 56126 Pisa, Italy
- Correspondence: ; Tel.: +39-050-992-797
| | - Ester Del Tufo
- Department of Clinical and Experimental Medicine, University of Pisa, Via Roma n. 55, 56126 Pisa, Italy; (E.D.T.); (S.G.); (D.G.P.)
- Allergology Section, Pediatrics Unit, Pisa University Hospital, Via Roma n. 67, 56126 Pisa, Italy
| | - Salvatore Fasola
- Institute of Translational Pharmacology, IFT, National Research Council, 90146 Palermo, Italy; (S.F.); (S.L.G.)
| | - Serena Gracci
- Department of Clinical and Experimental Medicine, University of Pisa, Via Roma n. 55, 56126 Pisa, Italy; (E.D.T.); (S.G.); (D.G.P.)
- Allergology Section, Pediatrics Unit, Pisa University Hospital, Via Roma n. 67, 56126 Pisa, Italy
| | - Maria Giovanna Marchi
- Regional Agency for Environmental Protection of Tuscany (ARPAT), 50144 Florence, Italy;
| | - Luca Fibbi
- Laboratory for Meteorology and Environmental Modelling (LaMMA Consortium), 50019 Sesto Fiorentino, Italy;
- Institute of Bioeconomy, IBE, National Research Council, 50019 Sesto Fiorentino, Italy
| | - Giovanna Cilluffo
- Department of Earth and Marine Sciences, University of Palermo, 90123 Palermo, Italy;
| | - Giuliana Ferrante
- Department of Surgical Sciences, Dentistry, Gynecology and Pediatrics, Pediatric Division, University of Verona, 37126 Verona, Italy;
| | - Diego G. Peroni
- Department of Clinical and Experimental Medicine, University of Pisa, Via Roma n. 55, 56126 Pisa, Italy; (E.D.T.); (S.G.); (D.G.P.)
- Allergology Section, Pediatrics Unit, Pisa University Hospital, Via Roma n. 67, 56126 Pisa, Italy
| | - Stefania La Grutta
- Institute of Translational Pharmacology, IFT, National Research Council, 90146 Palermo, Italy; (S.F.); (S.L.G.)
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Fernández-Alvarado JF, Coloma-Miró JF, Cortés-Pérez JP, García-García M, Fernández-Rodríguez S. Proposing a sustainable urban 3D model to minimize the potential risk associated with green infrastructure by applying engineering tools. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 812:152312. [PMID: 34953833 DOI: 10.1016/j.scitotenv.2021.152312] [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: 09/07/2021] [Revised: 11/29/2021] [Accepted: 12/07/2021] [Indexed: 06/14/2023]
Abstract
The goal of this study is to estimate the potential risk of exposure to urban green infrastructure by calculating and improving of AIROT index, adding meteorological factors as wind direction and updating the index to be more accurate for smaller urban green areas. To achieve this objective, BIM methodology has been applied by creating a 3D BIM model from the reality capture of a street with LiDAR. The BIM model contains the parametric data needed to apply AIROT index and it allows to map results in a graphic environmental sustainability study. The importance of location of green infrastructure is one of main conclusions obtained in order to minimize aerobiological risks in future new buildings or even in maintenance tasks of urban green infrastructure. A valuable result obtained from the developed methodology are walk simulations in the 3D model with the aim to identify high risk of potential exposure of urban green infrastructure with allergenic interest for allergic patients in order to supply health itineraries of pedestrians in a proposal of Smart City.
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Affiliation(s)
- J F Fernández-Alvarado
- Department of Construction, School of Technology, University of Extremadura, Avda. de la Universidad s/n, Cáceres, Spain
| | - J F Coloma-Miró
- Department of Construction, School of Technology, University of Extremadura, Avda. de la Universidad s/n, Cáceres, Spain
| | - J P Cortés-Pérez
- Department of Construction, School of Technology, University of Extremadura, Avda. de la Universidad s/n, Cáceres, Spain
| | - M García-García
- Department of Construction, School of Technology, University of Extremadura, Avda. de la Universidad s/n, Cáceres, Spain
| | - S Fernández-Rodríguez
- Department of Construction, School of Technology, University of Extremadura, Avda. de la Universidad s/n, Cáceres, Spain.
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42
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Kalayci O, Miligkos M, Pozo Beltrán CF, El-Sayed ZA, Gómez RM, Hossny E, Le Souef P, Nieto A, Phipatanakul W, Pitrez PM, Xepapadaki P, Jiu-Yao W, Papadopoulos NG. The role of environmental allergen control in the management of asthma. World Allergy Organ J 2022; 15:100634. [PMID: 35341023 PMCID: PMC8917313 DOI: 10.1016/j.waojou.2022.100634] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2021] [Revised: 01/08/2022] [Accepted: 02/01/2022] [Indexed: 11/26/2022] Open
Abstract
Allergen exposure may exacerbate asthma symptoms in sensitized patients. Allergen reduction or avoidance measures have been widely utilized; however, there is ongoing controversy on the effectiveness of specific allergen control measures in the management of children with asthma. Often, allergen avoidance strategies are not recommended by guidelines because they can be complex or burdensome, although individual patients may benefit. Here we explore the potential for intervention against exposure to the major allergens implicated in asthma (ie, house dust mites, indoor molds, rodents, cockroaches, furry pets, and outdoor molds and pollens), and subsequent effects on asthma symptoms. We critically assess the available evidence regarding the clinical benefits of specific environmental control measures for each allergen. Finally, we underscore the need for standardized and multifaceted approaches in research and real-life settings, which would result in the identification of more personalized and beneficial prevention strategies.
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43
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Tikkakoski AP, Karjalainen J, Sipilä K, Kivistö JE, Kähönen M, Lehtimäki L, Tikkakoski A. Outdoor pollen concentration is not associated with exercise-induced bronchoconstriction in children. Pediatr Pulmonol 2022; 57:695-701. [PMID: 34894109 DOI: 10.1002/ppul.25782] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/23/2021] [Revised: 11/07/2021] [Accepted: 12/01/2021] [Indexed: 11/06/2022]
Abstract
BACKGROUND Free running exercise test outdoors is an important method to diagnose asthma in children. However, the extent of how much exposure to pollens of outdoor air affects the results of the test is not known. METHODS We analyzed all reliable exercise challenge tests with impulse oscillometry in children (n = 799) between January 2012 and December 2014 in Tampere University Hospital. Pollen concentrations at the time of the test were collected from the register of Biodiversity Unit of the University of Turku. We compared the frequency of exercise-induced bronchoconstriction and pollen concentrations. RESULTS The analyses were restricted to birch and alder pollen as high counts of grass and mugwort pollen were so infrequent. The relative change in resistance at 5 Hz after exercise or the frequency of exercise-induced bronchoconstriction were not related to alder or birch pollen concentrations over 10 grains/m3 (p = 0.125-0.398). In logistic regression analysis comparing the effects of alder or birch pollen concentrations, immunoglobulin E (IgE)-mediated alder or birch allergy and absolute humidity over 10 g/m3 only absolute humidity was independently associated with change in airway resistance (odds ratio [OR]: 0.32, confidence interval [CI]: 0.13-0.67, p: 0.006). CONCLUSIONS In our large clinical sample, outdoor air pollen concentration was not associated with the probability of exercise-induced bronchoconstriction in free running test in children while low absolute humidity was the best predictor of airway obstruction.
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Affiliation(s)
- Anna P Tikkakoski
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
| | - Jussi Karjalainen
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland.,Allergy Centre, Tampere University Hospital, Tampere, Finland
| | - Kalle Sipilä
- Department of Clinical Physiology, Tampere University Hospital, Tampere, Finland
| | - Juho E Kivistö
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland.,Allergy Centre, Tampere University Hospital, Tampere, Finland
| | - Mika Kähönen
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland.,Department of Clinical Physiology, Tampere University Hospital, Tampere, Finland
| | - Lauri Lehtimäki
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland.,Allergy Centre, Tampere University Hospital, Tampere, Finland
| | - Antti Tikkakoski
- Department of Clinical Physiology, Tampere University Hospital, Tampere, Finland
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Gray-Ffrench M, Fernandes RM, Sinha IP, Abrams EM. Allergen Management in Children with Type 2-High Asthma. J Asthma Allergy 2022; 15:381-394. [PMID: 35378923 PMCID: PMC8976481 DOI: 10.2147/jaa.s276994] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Accepted: 03/17/2022] [Indexed: 11/30/2022] Open
Abstract
Children exposed to various indoor and outdoor allergens are placed at an increased risk of developing asthma in later life, with sensitization in these individuals being a strong predictor of disease morbidity. In addition, aeroallergen exposure influences asthma outcomes through an interplay with adverse determinants of health. The goal of this review is to provide an introductory overview of factors related to aeroallergen exposure in type 2-high childhood asthma. These include the relevance of exposure in asthma exacerbations and severity, and the evidence-base for avoidance and treatment for sensitization to these allergens. This review will focus on both indoor aeroallergens (house dust mite, pet, cockroach, mold, and rodent) and outdoor aeroallergens (pollens and molds). Treatment of aeroallergen sensitization in children with asthma includes avoidance and removal measures, although there is limited evidence of clinical benefit especially with single-strategy approaches. We will also address the interplay of aeroallergens and climate change, adverse social determinants, and the current COVID-19 pandemic, when we have seen a dramatic reduction in asthma exacerbations and emergency department visits among children. While there are many factors that are hypothesized to contribute to this reduction, among them is a reduced exposure to outdoor seasonal aeroallergens.
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Affiliation(s)
| | - Ricardo M Fernandes
- Clinical Pharmacology Unit, Faculty of Medicine and Instituto de Medicina Molecular, Universidade de Lisboa, Lisbon, Portugal
- Department of Pediatrics, Hospital de Santa Maria, Centro Hospitalar Universitário de Lisboa Norte, Lisbon, Portugal
| | - Ian P Sinha
- Alder Hey Children’s Hospital, Liverpool, UK
- Department of Women’s and Children’s Health, Faculty of Health and Life Sciences, University of Liverpool, Liverpool, UK
| | - Elissa M Abrams
- Department of Pediatrics, Section of Allergy and Clinical Immunology, University of Manitoba, Winnipeg, Canada
- Department of Pediatrics, Division of Allergy and Immunology, University of British Columbia, Vancouver, British Columbia, Canada
- Correspondence: Elissa M Abrams, Department of Pediatrics, Section of Allergy and Clinical Immunology, University of Manitoba, FE125-685 William Avenue, Winnipeg, MB, R2A 5L9, Canada, Tel +1 204-255-7650, Fax +1 204-254-0730, Email
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45
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Yang JJ, Klinkenberg C, Pan JZ, Wyss HM, den Toonder JMJ, Fang Q. An integrated system for automated measurement of airborne pollen based on electrostatic enrichment and image analysis with machine vision. Talanta 2022; 237:122908. [PMID: 34736645 DOI: 10.1016/j.talanta.2021.122908] [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: 07/25/2021] [Revised: 09/26/2021] [Accepted: 09/27/2021] [Indexed: 11/25/2022]
Abstract
Here we describe an automated and compact pollen detection system that integrates enrichment, in-situ detection and self-cleaning modules. The system can achieve continuous capture and enrichment of pollen grains in air samples by electrostatic adsorption. The captured pollen grains are imaged with a digital camera, and an automated image analysis based on machine vision is performed, which enables a quantification of the number of pollen particles as well as a preliminary classification into two types of pollen grains. In order to optimize and evaluate the system performance, we developed a testing approach that utilizes an airflow containing a precisely metered amount of pollen particles surrounded by a sheath flow to achieve the generation and lossless transmission of standard gas samples. We studied various factors affecting the pollen capture efficiency, including the applied voltage, air flow rate and humidity. Under optimized conditions, the system was successfully used in the measurement of airborne pollen particles within a wide range of concentrations, spanning 3 orders of magnitude.
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Affiliation(s)
- Jia-Jing Yang
- Institute of Microanalytical Systems, Department of Chemistry, Zhejiang University, Hangzhou, 310058, China; Microsystems Section, Department of Mechanical Engineering, Eindhoven University of Technology, Eindhoven, 5600MB, the Netherlands
| | - Christian Klinkenberg
- Microsystems Section, Department of Mechanical Engineering, Eindhoven University of Technology, Eindhoven, 5600MB, the Netherlands
| | - Jian-Zhang Pan
- Institute of Microanalytical Systems, Department of Chemistry, Zhejiang University, Hangzhou, 310058, China
| | - Hans M Wyss
- Microsystems Section, Department of Mechanical Engineering, Eindhoven University of Technology, Eindhoven, 5600MB, the Netherlands.
| | - Jaap M J den Toonder
- Microsystems Section, Department of Mechanical Engineering, Eindhoven University of Technology, Eindhoven, 5600MB, the Netherlands
| | - Qun Fang
- Institute of Microanalytical Systems, Department of Chemistry, Zhejiang University, Hangzhou, 310058, China.
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Zárate RA, Zigler C, Cubbin C, Matsui EC. RETRACTED: Neighborhood-level variability in asthma-related emergency department visits in Central Texas. J Allergy Clin Immunol 2021; 148:1262-1269.e6. [PMID: 34506851 PMCID: PMC8578425 DOI: 10.1016/j.jaci.2021.07.044] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Revised: 07/21/2021] [Accepted: 07/28/2021] [Indexed: 11/17/2022]
Abstract
Background: The extent to which asthma-related ED visit incidence rates vary from neighborhood to neighborhood and predictors of neighorbood-level asthma ED visit burden are not well understood. Objective: To describe the census tract-level spatial distribution of asthma-related emergency department visits in Central Texas and identify neighborhood-level characteristics that explain variability in neighborhood-level asthma ED visit rates. Methods: Conditional autoregressive models were used to examine the spatial distribution of asthma-related ED visit incidence rates across Travis County, TX census tracts and to assess the contribution of census tract characteristics to their distribution. Results: There were distinct patterns in ED visit incidence rates at the census tract scale, which were largely unexplained by socioeconomic or selected built environment neighborhood characteristics. Racial and ethnic composition explained 33% of the variability of ED visit incidence rates across census tracts. Spatial patterns and the census tract predictors of ED visit incidence rates differed by racial and ethnic groups. Conclusions: Variability in asthma ED visit incidence rates are apparent at a smaller spatial scales than previously examined. The majority of the variability in census tract-level asthma ED visit rates in Central Texas is not explained by racial and ethnic composition or other neighborhood features. Race/ethnicity-specific estimates of neighborhood ED visit rates may be useful for identifying high burden neighborhoods for specific ethnic/racial groups, which otherwise would go unrecognized. Asthma ED visit rates may vary among neighborhoods; neighborhood-level interventions or moving to a low incidence neighborhood may be effective in reducing asthma disparities and deserve further study.
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Affiliation(s)
- R. A. Zárate
- Department of Population Health, Dell Medical School at the University of Texas at Austin
| | - Corwin Zigler
- Department of Women’s Health, Dell Medical School at the University of Texas at Austin
- Department of Statistics and Data Sciences at the University of Texas at Austin
| | - Catherine Cubbin
- Department of Population Health, Dell Medical School at the University of Texas at Austin
- Steve Hicks School of Social Work, University of Texas at Austin
| | - Elizabeth C. Matsui
- Department of Population Health, Dell Medical School at the University of Texas at Austin
- Steve Hicks School of Social Work, University of Texas at Austin
- Department of Pediatrics, Dell Medical School at the University of Texas at Austin
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Jones PJ, Koolhof IS, Wheeler AJ, Williamson GJ, Lucani C, Campbell SL, Bowman DJMS, Cooling N, Gasparrini A, Johnston FH. Characterising non-linear associations between airborne pollen counts and respiratory symptoms from the AirRater smartphone app in Tasmania, Australia: A case time series approach. ENVIRONMENTAL RESEARCH 2021; 200:111484. [PMID: 34116012 DOI: 10.1016/j.envres.2021.111484] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/28/2021] [Revised: 05/25/2021] [Accepted: 06/02/2021] [Indexed: 06/12/2023]
Abstract
Pollen is a well-established trigger of asthma and allergic rhinitis, yet concentration-response relationships, lagged effects, and interactions with other environmental factors remain poorly understood. Smartphone technology offers an opportunity to address these challenges using large, multi-year datasets that capture individual symptoms and exposures in real time. We aimed to characterise associations between six pollen types and respiratory symptoms logged by users of the AirRater smartphone app in Tasmania, Australia. We analyzed 44,820 symptom reports logged by 2272 AirRater app users in Tasmania over four years (2015-2019). With these data we evaluated associations between daily respiratory symptoms and atmospheric pollen concentrations. We implemented Poisson regression models, using the case time series approach designed for app-sourced data. We assessed potentially non-linear and lagged associations with (a) total pollen and (b) six individual pollen taxa. We adjusted for seasonality and meteorology and tested for interactions with particulate air pollution (PM2.5). We found evidence of non-linear associations between total pollen and respiratory symptoms for up to three days following exposure. For total pollen, the same-day relative risk (RR) increased to 1.31 (95% CI: 1.26-1.37) at a concentration of 50 grains/m3 before plateauing. Associations with individual pollen taxa were also non-linear with some diversity in shapes. For all pollen taxa the same-day RR was highest. The interaction between total pollen and PM2.5 was positive, with risks associated with pollen significantly higher in the presence of high concentrations of PM2.5. Our results support a non-linear response between airborne pollen and respiratory symptoms. The association was strongest on the day of exposure and synergistic with particulate air pollution. The associations found with Dodonaea and Myrtaceae highlight the need to further investigate the role of Australian native pollen types in allergic respiratory disease.
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Affiliation(s)
- Penelope J Jones
- Menzies Institute for Medical Research, University of Tasmania, Hobart, TAS, 7000, Australia.
| | - Iain S Koolhof
- Menzies Institute for Medical Research, University of Tasmania, Hobart, TAS, 7000, Australia; School of Medicine, University of Tasmania, Hobart, TAS, 7000, Australia.
| | - Amanda J Wheeler
- Menzies Institute for Medical Research, University of Tasmania, Hobart, TAS, 7000, Australia; Mary McKillop Institute for Health Research, Australian Catholic University, Melbourne, VIC, 3000, Australia.
| | - Grant J Williamson
- School of Natural Sciences, University of Tasmania, Hobart, TAS, 7001, Australia.
| | - Christopher Lucani
- School of Natural Sciences, University of Tasmania, Hobart, TAS, 7001, Australia.
| | - Sharon L Campbell
- Menzies Institute for Medical Research, University of Tasmania, Hobart, TAS, 7000, Australia; Public Health Services, Department of Health, Hobart, TAS, 7000, Australia.
| | - David J M S Bowman
- School of Natural Sciences, University of Tasmania, Hobart, TAS, 7001, Australia.
| | - Nick Cooling
- School of Medicine, University of Tasmania, Hobart, TAS, 7000, Australia.
| | - Antonio Gasparrini
- Department of Public Health Environments and Society, London School of Hygiene & Tropical Medicine, WC1H 9SH, London, UK; Centre for Statistical Methodology, London School of Hygiene & Tropical Medicine, WC1H 9SH, London, UK; Centre on Climate Change and Planetary Health, London School of Hygiene & Tropical Medicine, WC1H 9SH, London, UK.
| | - Fay H Johnston
- Menzies Institute for Medical Research, University of Tasmania, Hobart, TAS, 7000, Australia; Public Health Services, Department of Health, Hobart, TAS, 7000, Australia.
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48
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Suanno C, Aloisi I, Fernández-González D, Del Duca S. Pollen forecasting and its relevance in pollen allergen avoidance. ENVIRONMENTAL RESEARCH 2021; 200:111150. [PMID: 33894233 DOI: 10.1016/j.envres.2021.111150] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/28/2020] [Revised: 03/26/2021] [Accepted: 04/06/2021] [Indexed: 06/12/2023]
Abstract
Pollinosis and allergic asthma are respiratory diseases of global relevance, heavily affecting the quality of life of allergic subjects. Since there is not a decisive cure yet, pollen allergic subjects need to avoid exposure to high pollen allergens concentrations. For this purpose, pollen forecasting is an essential tool that needs to be reliable and easily accessible. While forecasting methods are rapidly evolving towards more complex statistical and physical models, the use of simple and traditional methods is still preferred in routine predictions. In this review, we summarise and explain the main parameters considered when forecasting pollen, and classify the different forecasting methods in two groups: observation-based and process-based. Finally, we compare these approaches based on their usefulness to allergic patients, and discuss possible future developments of the field.
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Affiliation(s)
- Chiara Suanno
- Department of Biological, Geological and Environmental Sciences, University of Bologna, Via Irnerio 42, 40126, Bologna, Italy
| | - Iris Aloisi
- Department of Biological, Geological and Environmental Sciences, University of Bologna, Via Irnerio 42, 40126, Bologna, Italy.
| | - Delia Fernández-González
- Institute of Atmospheric Sciences and Climate, ISAC-CNR, Via Piero Gobetti 101, 40129, Bologna, Italy; Department Biodiversity and Environmental Management, University of León, 24071, Campus Vegazana, S/n, 24007, León, Spain
| | - Stefano Del Duca
- Department of Biological, Geological and Environmental Sciences, University of Bologna, Via Irnerio 42, 40126, Bologna, Italy
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49
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Holloway T, Miller D, Anenberg S, Diao M, Duncan B, Fiore AM, Henze DK, Hess J, Kinney PL, Liu Y, Neu JL, O'Neill SM, Odman MT, Pierce RB, Russell AG, Tong D, West JJ, Zondlo MA. Satellite Monitoring for Air Quality and Health. Annu Rev Biomed Data Sci 2021; 4:417-447. [PMID: 34465183 DOI: 10.1146/annurev-biodatasci-110920-093120] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Data from satellite instruments provide estimates of gas and particle levels relevant to human health, even pollutants invisible to the human eye. However, the successful interpretation of satellite data requires an understanding of how satellites relate to other data sources, as well as factors affecting their application to health challenges. Drawing from the expertise and experience of the 2016-2020 NASA HAQAST (Health and Air Quality Applied Sciences Team), we present a review of satellite data for air quality and health applications. We include a discussion of satellite data for epidemiological studies and health impact assessments, as well as the use of satellite data to evaluate air quality trends, support air quality regulation, characterize smoke from wildfires, and quantify emission sources. The primary advantage of satellite data compared to in situ measurements, e.g., from air quality monitoring stations, is their spatial coverage. Satellite data can reveal where pollution levels are highest around the world, how levels have changed over daily to decadal periods, and where pollutants are transported from urban to global scales. To date, air quality and health applications have primarily utilized satellite observations and satellite-derived products relevant to near-surface particulate matter <2.5 μm in diameter (PM2.5) and nitrogen dioxide (NO2). Health and air quality communities have grown increasingly engaged in the use of satellite data, and this trend is expected to continue. From health researchers to air quality managers, and from global applications to community impacts, satellite data are transforming the way air pollution exposure is evaluated.
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Affiliation(s)
- Tracey Holloway
- Nelson Institute Center for Sustainability and the Global Environment, University of Wisconsin-Madison, Madison, Wisconsin 53726, USA; .,Department of Atmospheric and Oceanic Sciences, University of Wisconsin-Madison, Madison, Wisconsin 53726, USA
| | - Daegan Miller
- Nelson Institute Center for Sustainability and the Global Environment, University of Wisconsin-Madison, Madison, Wisconsin 53726, USA;
| | - Susan Anenberg
- Department of Environmental and Occupational Health, George Washington University, Washington, DC 20052, USA
| | - Minghui Diao
- Department of Meteorology and Climate Science, San José State University, San Jose, California 95192, USA
| | - Bryan Duncan
- Atmospheric Chemistry and Dynamics Laboratory, NASA Goddard Space Flight Center, Greenbelt, Maryland 20771, USA
| | - Arlene M Fiore
- Lamont-Doherty Earth Observatory and Department of Earth and Environmental Sciences, Columbia University, Palisades, New York 10964, USA
| | - Daven K Henze
- Department of Mechanical Engineering, University of Colorado, Boulder, Colorado 80309, USA
| | - Jeremy Hess
- Department of Environmental and Occupational Health Sciences, Department of Global Health, and Department of Emergency Medicine, University of Washington, Seattle, Washington 98105, USA
| | - Patrick L Kinney
- School of Public Health, Boston University, Boston, Massachusetts 02215, USA
| | - Yang Liu
- Gangarosa Department of Environment Health, Rollins School of Public Health, Emory University, Atlanta, Georgia 30322, USA
| | - Jessica L Neu
- Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California 91109, USA
| | - Susan M O'Neill
- Pacific Northwest Research Station, USDA Forest Service, Seattle, Washington 98103, USA
| | - M Talat Odman
- School of Civil and Environmental Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, USA
| | - R Bradley Pierce
- Department of Atmospheric and Oceanic Sciences, University of Wisconsin-Madison, Madison, Wisconsin 53726, USA.,Space Science and Engineering Center, University of Wisconsin-Madison, Madison, Wisconsin 53726, USA
| | - Armistead G Russell
- School of Civil and Environmental Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, USA
| | - Daniel Tong
- Atmospheric, Oceanic and Earth Sciences Department, George Mason University, Fairfax, Virginia 22030, USA
| | - J Jason West
- Gillings School of Global Public Health, University of North Carolina, Chapel Hill, North Carolina 27599, USA
| | - Mark A Zondlo
- Department of Civil and Environmental Engineering, Princeton University, Princeton, New Jersey 08544, USA
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50
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Cai Y. Ambient pollen and air quality on children’s lung function: is there a synergy? Thorax 2021; 76:858-859. [DOI: 10.1136/thoraxjnl-2021-217063] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/07/2021] [Indexed: 02/03/2023]
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