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Amin H, Šantl-Temkiv T, Cramer C, Finster K, Real FG, Gislason T, Holm M, Janson C, Jögi NO, Jogi R, Malinovschi A, Marshall IPG, Modig L, Norbäck D, Shigdel R, Sigsgaard T, Svanes C, Thorarinsdottir H, Wouters IM, Schlünssen V, Bertelsen RJ. Indoor Airborne Microbiome and Endotoxin: Meteorological Events and Occupant Characteristics Are Important Determinants. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2023; 57:11750-11766. [PMID: 37523308 PMCID: PMC10433529 DOI: 10.1021/acs.est.3c01616] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Revised: 07/13/2023] [Accepted: 07/13/2023] [Indexed: 08/02/2023]
Abstract
Airborne bacteria and endotoxin may affect asthma and allergies. However, there is limited understanding of the environmental determinants that influence them. This study investigated the airborne microbiomes in the homes of 1038 participants from five cities in Northern Europe: Aarhus, Bergen, Reykjavik, Tartu, and Uppsala. Airborne dust particles were sampled with electrostatic dust fall collectors (EDCs) from the participants' bedrooms. The dust washed from the EDCs' clothes was used to extract DNA and endotoxin. The DNA extracts were used for quantitative polymerase chain (qPCR) measurement and 16S rRNA gene sequencing, while endotoxin was measured using the kinetic chromogenic limulus amoebocyte lysate (LAL) assay. The results showed that households in Tartu and Aarhus had a higher bacterial load and diversity than those in Bergen and Reykjavik, possibly due to elevated concentrations of outdoor bacterial taxa associated with low precipitation and high wind speeds. Bergen-Tartu had the highest difference (ANOSIM R = 0.203) in β diversity. Multivariate regression models showed that α diversity indices and bacterial and endotoxin loads were positively associated with the occupants' age, number of occupants, cleaning frequency, presence of dogs, and age of the house. Further studies are needed to understand how meteorological factors influence the indoor bacterial community in light of climate change.
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Affiliation(s)
- Hesham Amin
- Department
of Clinical Science, University of Bergen, 5021 Bergen, Norway
| | - Tina Šantl-Temkiv
- Section
for Microbiology, Department of Biology, Aarhus University, 8000 Aarhus, Denmark
| | - Christine Cramer
- Department
of Public Health, Environment, Work and Health, Danish Ramazzini Center, Aarhus University, 8000 Aarhus, Denmark
- Department
of Occupational Medicine, Danish Ramazzini Center, Aarhus University Hospital, 8200 Aarhus, Denmark
| | - Kai Finster
- Section
for Microbiology, Department of Biology, Aarhus University, 8000 Aarhus, Denmark
| | | | | | - Mathias Holm
- Department
of Occupational and Environmental Medicine, University of Gothenburg, 405 30 Gothenburg, Sweden
| | - Christer Janson
- Department
of Medical Sciences: Respiratory, Allergy, Sleep Research, Uppsala University, 751 85 Uppsala, Sweden
- Department
of Medical Sciences: Clinical Physiology, Uppsala University, 751
85 Uppsala, Sweden
| | - Nils Oskar Jögi
- Department
of Clinical Science, University of Bergen, 5021 Bergen, Norway
| | - Rain Jogi
- Tartu
University Hospital, Lung Clinic, 50406 Tartu, Estonia
| | - Andrei Malinovschi
- Department
of Medical Sciences: Clinical Physiology, Uppsala University, 751
85 Uppsala, Sweden
| | - Ian P. G. Marshall
- Section
for Microbiology, Department of Biology, Aarhus University, 8000 Aarhus, Denmark
| | - Lars Modig
- Division
of Occupational and Environmental Medicine, Department of Public Health
and Clinical Medicine, Umeå University, 901 87 Umeå, Sweden
| | - Dan Norbäck
- Department of Medical
Sciences, Occupational and Environmental Medicine, Uppsala University, 751
85 Uppsala, Sweden
| | - Rajesh Shigdel
- Department
of Clinical Science, University of Bergen, 5021 Bergen, Norway
| | - Torben Sigsgaard
- Department
of Public Health, Environment, Work and Health, Danish Ramazzini Center, Aarhus University, 8000 Aarhus, Denmark
| | - Cecilie Svanes
- Department of Occupational Medicine, Haukeland
University Hospital, 5053 Bergen, Norway
- Centre for International Health, University
of Bergen Department of Global Public Health and Primary Care, 5009 Bergen, Norway
| | - Hulda Thorarinsdottir
- Department of Anesthesia
and Intensive Care, Landspitali University
Hospital, 101 Reykjavik, Iceland
| | - Inge M. Wouters
- Institute for Risk Assessment Sciences, Faculty of Veterinary Medicine, Utrecht University, 3584 CS Utrecht, The Netherlands
| | - Vivi Schlünssen
- Department
of Public Health, Environment, Work and Health, Danish Ramazzini Center, Aarhus University, 8000 Aarhus, Denmark
| | - Randi J. Bertelsen
- Department
of Clinical Science, University of Bergen, 5021 Bergen, Norway
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Riederer AM, Krenz JE, Tchong-French MI, Torres E, Perez A, Younglove LR, Jansen KL, Hardie DC, Farquhar SA, Sampson PD, Metwali N, Thorne PS, Karr CJ. Effectiveness of portable HEPA air cleaners on reducing indoor endotoxin, PM 10, and coarse particulate matter in an agricultural cohort of children with asthma: A randomized intervention trial. INDOOR AIR 2021; 31:1926-1939. [PMID: 34288127 PMCID: PMC8577577 DOI: 10.1111/ina.12858] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2020] [Revised: 04/05/2021] [Accepted: 05/02/2021] [Indexed: 06/13/2023]
Abstract
We conducted a randomized trial of portable HEPA air cleaners in the homes of children age 6-12 years with asthma in the Yakima Valley, Washington. All families received asthma education while intervention families also received two HEPA cleaners (child's bedroom, living room). We collected 14-day integrated samples of endotoxin in settled dust and PM10 and PM10-2.5 in the air of the children's bedrooms at baseline and one-year follow-up, and used linear regression to compare follow-up levels, adjusting for baseline. Seventy-one families (36 HEPA, 35 control) completed the study. Baseline geometric mean (GSD) endotoxin loadings were 1565 (6.3) EU/m2 and 2110 (4.9) EU/m2 , respectively, in HEPA vs. control homes while PM10 and PM10-2.5 were 22.5 (1.9) μg/m3 and 9.5 (2.9) μg/m3 , respectively, in HEPA homes, and 19.8 (1.8) μg/m3 and 7.7 (2.0) μg/m3 , respectively, in control homes. At follow-up, HEPA families had 46% lower (95% CI, 31%-57%) PM10 on average than control families, consistent with prior studies. In the best-fit heterogeneous slopes model, HEPA families had 49% (95% CI, 6%-110%) and 89% lower (95% CI, 28%-177%) PM10-2.5 at follow-up, respectively, at 50th and 75th percentile baseline concentrations. Endotoxin loadings did not differ significantly at follow-up (4% lower, HEPA homes; 95% CI, -87% to 50%).
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Affiliation(s)
- Anne M. Riederer
- Department of Environmental and Occupational Health Sciences, University of Washington, Seattle, WA, USA
| | - Jennifer E. Krenz
- Department of Environmental and Occupational Health Sciences, University of Washington, Seattle, WA, USA
| | - Maria I. Tchong-French
- Department of Environmental and Occupational Health Sciences, University of Washington, Seattle, WA, USA
| | - Elizabeth Torres
- Northwest Communities Education Center, Radio KDNA, Granger, WA, USA
| | - Adriana Perez
- Yakima Valley Farm Workers Clinic, Toppenish, WA, USA
| | - Lisa R. Younglove
- Department of Environmental and Occupational Health Sciences, University of Washington, Seattle, WA, USA
| | - Karen L. Jansen
- Department of Environmental and Occupational Health Sciences, University of Washington, Seattle, WA, USA
| | - David C. Hardie
- Department of Environmental and Occupational Health Sciences, University of Washington, Seattle, WA, USA
| | - Stephanie A. Farquhar
- Department of Environmental and Occupational Health Sciences, University of Washington, Seattle, WA, USA
| | - Paul D. Sampson
- Department of Biostatistics, University of Washington, Seattle, WA, USA
| | - Nervana Metwali
- Department of Occupational and Environmental Health, College of Public Health, University of Iowa, Iowa City, IA, USA
| | - Peter S. Thorne
- Department of Occupational and Environmental Health, College of Public Health, University of Iowa, Iowa City, IA, USA
| | - Catherine J. Karr
- Department of Environmental and Occupational Health Sciences, University of Washington, Seattle, WA, USA
- Department of Pediatrics, University of Washington, Seattle, WA, USA
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Kumar P, Kausar MA, Singh AB, Singh R. Biological contaminants in the indoor air environment and their impacts on human health. AIR QUALITY, ATMOSPHERE, & HEALTH 2021; 14:1723-1736. [PMID: 34394766 PMCID: PMC8346343 DOI: 10.1007/s11869-021-00978-z] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Accepted: 01/04/2021] [Indexed: 05/25/2023]
Abstract
Indoor air environment contains a complex mixture of biological contaminants such as bacteria, fungi, viruses, algae, insects, and their by-products such as endotoxins, mycotoxins, volatile organic compounds, etc. Biological contaminants have been categorized according to whether they are allergenic, infectious, capable of inducing toxic or inflammatory responses in human beings. At present, there is a lack of awareness about biological contamination in the indoor environment and their potential sources for the spreading of various infections. Therefore, this review article examines the association of biological contaminants with human health, and it will also provide in-depth knowledge of various biological contaminants present in different places such as residential areas, hospitals, offices, schools, etc. Moreover, qualitative and quantitative data of bio-contaminants in various indoor environments such as schools, hospitals, residential houses, etc. have also been derived from the recent literature survey.
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Affiliation(s)
- Pradeep Kumar
- Department of Environmental Studies, Satyawati College, University of Delhi, Ashok Vihar III, Delhi-52, India
| | - Mohd. Adnan Kausar
- Department of Biochemistry, College of Medicine, University of Hail, Hail, Kingdom of Saudi Arabia
| | - A. B. Singh
- CSIR- Institute of Genomics and Integrative Biology (IGIB), Delhi University Campus, Delhi-07, India
| | - Rajeev Singh
- Department of Environmental Studies, Satyawati College, University of Delhi, Ashok Vihar III, Delhi-52, India
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Associations between dog keeping and indoor dust microbiota. Sci Rep 2021; 11:5341. [PMID: 33674692 PMCID: PMC7935950 DOI: 10.1038/s41598-021-84790-w] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Accepted: 02/09/2021] [Indexed: 12/27/2022] Open
Abstract
Living with dogs appears to protect against allergic diseases and airway infections, an effect possibly linked with immunomodulation by microbial exposures associated with dogs. The aim of this study was to characterize the influence of dog ownership on house dust microbiota composition. The bacterial and fungal microbiota was characterized with Illumina MiSeq sequencing from floor dust samples collected from homes in a Finnish rural-suburban (LUKAS2, N = 182) birth cohort, and the results were replicated in a German urban (LISA, N = 284) birth cohort. Human associated bacteria variable was created by summing up the relative abundances of five bacterial taxa. Bacterial richness, Shannon index and the relative abundances of seven bacterial genera, mostly within the phyla Proteobacteria and Firmicutes, were significantly higher in the dog than in the non-dog homes, whereas the relative abundance of human associated bacteria was lower. The results were largely replicated in LISA. Fungal microbiota richness and abundance of Leucosporidiella genus were higher in dog homes in LUKAS2 and the latter association replicated in LISA. Our study confirms that dog ownership is reproducibly associated with increased bacterial richness and diversity in house dust and identifies specific dog ownership-associated genera. Dogs appeared to have more limited influence on the fungal than bacterial indoor microbiota.
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Ziyab AH, Karmaus W, AlShatti KA, Al-Kandari M, Hussein SH, Ali YM. Psoriasis Among Adolescents in Kuwait and the Role of Siblings, Breastfeeding, and Household Cat and Secondhand Smoke Exposure: A Cross-Sectional Study. Dermatol Ther (Heidelb) 2020; 10:1137-1153. [PMID: 32844373 PMCID: PMC7477028 DOI: 10.1007/s13555-020-00437-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Indexed: 10/29/2022] Open
Abstract
INTRODUCTION Globally, the epidemiology of psoriasis is poorly understood, and most countries lack essential epidemiologic data regarding disease burden and its determinants. This study sought to estimate the prevalence of psoriasis among adolescents in Kuwait and assess its association with different risk factors, including obesity, sibship size, breastfeeding, and exposure to household secondhand smoke (SHS) and pets. METHODS Schoolchildren aged 11-14 years (n = 3864) were enrolled in a cross-sectional study. Lifetime and current (past 12 months) prevalence of psoriasis were ascertained according to ever having a history of doctor-diagnosis plus current active lesion(s) and/or current use of treatment of psoriasis. Associations were assessed using Poisson regression with robust variance estimation, and adjusted prevalence ratios (aPR) and 95% confidence intervals (CI) were estimated. RESULTS The lifetime and current prevalence of psoriasis were estimated to be 3.6% (136/3806) and 1.1% (42/3806), respectively. Commonly reported anatomical sites affected by psoriasis included scalp (47.6%) and the extensor surface of the knees (50%) and elbows (38.1%). Household SHS exposure was associated with increased lifetime psoriasis (aPR = 1.41, 95% CI 1.07-1.98), and showed a trend for association with current psoriasis (1.77, 0.89-3.53). Similarly, cat-keeping during infancy was associated with lifetime psoriasis (1.96, 1.14-3.37), and demonstrated a trend for association with current psoriasis (1.49, 0.52-1.98). In contrast, breastfeeding was associated with a decreased lifetime psoriasis (0.62, 0.44-0.89), but was not associated with current psoriasis. Trend analyses showed that the prevalence of lifetime and current psoriasis increased with increasing numbers of total, older, and younger siblings. CONCLUSIONS Psoriasis affects a considerable proportion of schoolchildren in Kuwait. Interestingly, psoriasis prevalence was related to risk factors also found in allergic diseases, such as exposure to SHS, cat-keeping in infancy, breastfeeding, and sibship size, possibly suggesting a role of immune dysregulation.
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Affiliation(s)
- Ali H Ziyab
- Department of Community Medicine and Behavioral Sciences, Faculty of Medicine, Kuwait University, Kuwait City, Kuwait.
| | - Wilfried Karmaus
- Division of Epidemiology, Biostatistics, and Environmental Health, School of Public Health, University of Memphis, Memphis, TN, USA
| | | | - Manal Al-Kandari
- Department of Community Medicine and Behavioral Sciences, Faculty of Medicine, Kuwait University, Kuwait City, Kuwait
| | - Shaimaa H Hussein
- Department of Community Medicine and Behavioral Sciences, Faculty of Medicine, Kuwait University, Kuwait City, Kuwait
| | - Yaser M Ali
- Department of Internal Medicine, Mubarak Al-Kabeer Hospital, Ministry of Health, Kuwait City, Kuwait
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6
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Buck B, Muniz-Rodriguez K, Jillson S, Huang LT, Adhikari A, Jacob N, Wei Y, Zhang J. Pet ownership and risk of dying from cancer: observation from a nationally representative cohort. INTERNATIONAL JOURNAL OF ENVIRONMENTAL HEALTH RESEARCH 2020; 30:105-116. [PMID: 30758233 DOI: 10.1080/09603123.2019.1577366] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/29/2018] [Accepted: 01/26/2019] [Indexed: 06/09/2023]
Abstract
We longitudinally examined the relationship between pet ownership and risk of dying from cancer in a nationally representative cohort of 13,725 adults in the Third National Health and Nutrition Examination Survey, 1988-1994. The vital status was followed through 31 December 2010. Women who owned pets (any type) presented one-year shorter survival time (15.88 years) than non-pet owner (16.83 years). A larger difference of survival time was particularly seen in bird owners (13.01 years) compared to non-bird owners (16.82 years). After adjusting for potential confounders, hazard ratio (HR) of dying from cancer associated with any type of pets was 1.08 (95% CI = 0.77-1.50) for men and 1.40 (1.01-1.93) for women. The association in women was presumably driven by owning birds [HR 2.41 (1.34-4.31)] or cats [HR 1.48 (0.97-2.24)]. Keeping birds and cats in the household was associated with an increased risk of dying from cancer, especially in women.
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Affiliation(s)
- Brian Buck
- Department of Epidemiology, Jiann-Ping Hsu College of Public Health, Georgia Southern University, Statesboro, GA, USA
| | - Kamalich Muniz-Rodriguez
- Department of Epidemiology, Jiann-Ping Hsu College of Public Health, Georgia Southern University, Statesboro, GA, USA
| | - Sarah Jillson
- Department of Epidemiology, Jiann-Ping Hsu College of Public Health, Georgia Southern University, Statesboro, GA, USA
| | - Li-Ting Huang
- Department of Epidemiology, Jiann-Ping Hsu College of Public Health, Georgia Southern University, Statesboro, GA, USA
| | - Atin Adhikari
- Department of Environmental Health Sciences, Jiann-Ping Hsu College of Public Health, Georgia Southern University, Statesboro, GA, USA
| | - Naduparambil Jacob
- Department of Radiation Oncology, Ohio State University Comprehensive Cancer Center, Columbus, OH, USA
| | - Yudan Wei
- Department of Community Medicine, Mercer University School of Medicine, Macon, GA, USA
| | - Jian Zhang
- Department of Epidemiology, Jiann-Ping Hsu College of Public Health, Georgia Southern University, Statesboro, GA, USA
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Milanzi EB, Koppelman GH, Smit HA, Wijga AH, Vonk JM, Brunekreef B, Gehring U. Timing of secondhand smoke, pet, dampness or mould exposure and lung function in adolescence. Thorax 2019; 75:153-163. [PMID: 31748257 DOI: 10.1136/thoraxjnl-2019-213149] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2019] [Revised: 10/02/2019] [Accepted: 10/03/2019] [Indexed: 11/04/2022]
Abstract
BACKGROUND The relevance of timing of exposure in the associations of secondhand tobacco smoke (SHS), pets, and dampness or mould exposure with lung function is unclear. We investigated the relevance of timing of these exposures for lung function in adolescence. METHODS We used data from participants of the Dutch Prevention and Incidence of Asthma and Mite Allergy (PIAMA) cohort with spirometric measurements at ages 12 and 16 years (n=552). Data on residential exposure to SHS, pets, and dampness or mould were obtained by repeated parental questionnaires. We characterised timing of exposure through longitudinal patterns using latent class growth modelling and assessed associations of these patterns with FEV1 and FVC at ages 12 and 16 and FEV1 and FVC growth between ages 12 and 16 using linear regression models. RESULTS Childhood SHS exposure was associated with reduced FEV1 growth/year (95% CI) (-0.34% (-0.64% to -0.04%)). Late childhood and early life pet exposure was associated with increased FEV1 growth (0.41% (0.14% to 0.67%)) and reduced FVC growth (-0.28% (-0.53% to -0.03%)), respectively, compared with very low exposure. Early life dampness or mould exposure was associated with reduced lung function growth. All time windows of SHS exposure tended to be associated with lower attained lung function and pet exposure tended to be associated with higher FEV1. CONCLUSION SHS exposure during childhood could lead to reduced lung function growth and lower attained lung function in adolescence. While pet exposure in late childhood may not adversely affect lung function, early childhood pet exposure may slow down FVC growth in adolescence.
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Affiliation(s)
- Edith B Milanzi
- Institute for Risk Assessment Sciences (IRAS), Utrecht University, Utrecht, The Netherlands
| | - Gerard H Koppelman
- Groningen Research Institute for Asthma and COPD (GRIAC), University Medical Center Groningen, Groningen, The Netherlands.,Department of Pediatric Pulmonology and Pediatric Allergology, Beatrix Children's Hospital, University Medical Center Groningen, Groningen, The Netherlands
| | - Henriette A Smit
- Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Alet H Wijga
- Centre for Nutrition, Prevention and Health Services, National Institute for Public Health and the Environment (RIVM), Bilthoven, The Netherlands
| | - Judith M Vonk
- Groningen Research Institute for Asthma and COPD (GRIAC), University Medical Center Groningen, Groningen, The Netherlands.,Department of Epidemiology, University Medical Center Groningen, University of Groningen, Groningen, Netherlands
| | - Bert Brunekreef
- Institute for Risk Assessment Sciences (IRAS), Utrecht University, Utrecht, The Netherlands.,Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Ulrike Gehring
- Institute for Risk Assessment Sciences (IRAS), Utrecht University, Utrecht, The Netherlands
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Fuertes E, Standl M, Markevych I, Bischof W, Heinrich J. Is the association between pet ownership and indoor endotoxin levels confounded or modified by outdoor residential greenspace? THE SCIENCE OF THE TOTAL ENVIRONMENT 2018; 625:716-721. [PMID: 29306159 DOI: 10.1016/j.scitotenv.2017.12.333] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/04/2017] [Revised: 12/11/2017] [Accepted: 12/29/2017] [Indexed: 06/07/2023]
Abstract
BACKGROUND Pet ownership is consistently associated with higher indoor endotoxin concentrations, but may also be related to the amount of greenspace around the home. This study examined whether the association between pet ownership and higher indoor endotoxin concentrations is confounded or modified by residential greenspace. METHODS Information on pet ownership was collected at the time of recruitment of the German LISA birth cohort. Endotoxin levels were measured in settled house dust sampled from mothers' mattresses (N=1197) and living room floors (N=390). Greenspace around the home was assessed as the mean Normalized Difference Vegetation Index in 100m, 500m and 1000m buffers around the home, and as the distance to the nearest urban and natural green space. Linear regression models assessed cross-sectional associations between pet ownership and log-transformed endotoxin levels, adjusted for known predictors of endotoxin levels. Confounding by greenspace was assessed by additionally adjusting the models for each greenspace variable. Effect modification was assessed by including interaction terms between pet ownership and each greenspace variable, and by model stratification. RESULTS Dog and cat ownership were associated with higher endotoxin levels in mothers' mattresses, whereas only dog ownership was associated with endotoxin levels in the floor samples. All associations were highly robust to further adjustment for greenspace, and there was little evidence to suggest any effect modification (interaction terms had p-values >0.05). CONCLUSIONS Residential greenspace did not confound or modify the association between pet ownership and indoor endotoxin levels. Studies should continue investigating whether pets influence the indoor environment only by their presence, or also by acting as transmission vectors of the outdoors.
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Affiliation(s)
- Elaine Fuertes
- ISGlobal, Centre for Research in Environmental Epidemiology (CREAL), Spain; Universitat Pompeu Fabra (UPF), Spain; CIBER Epidemiología y Salud Pública (CIBERESP), Barcelona, Spain.
| | - Marie Standl
- Institute of Epidemiology I, Helmholtz Zentrum München - German Research Center for Environmental Health, Neuherberg, Germany
| | - Iana Markevych
- Institute of Epidemiology I, Helmholtz Zentrum München - German Research Center for Environmental Health, Neuherberg, Germany; Institute and Clinic for Occupational, Social and Environmental Medicine, University Hospital, LMU Munich, Munich, Germany
| | - Wolfgang Bischof
- University Hospital Jena, Institute of Occupational, Social and Environmental Medicine, Department of Indoor Climatology, Jena, Germany
| | - Joachim Heinrich
- Institute of Epidemiology I, Helmholtz Zentrum München - German Research Center for Environmental Health, Neuherberg, Germany; Institute and Clinic for Occupational, Social and Environmental Medicine, University Hospital, LMU Munich, Munich, Germany
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9
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Hu LW, Qian Z, Dharmage SC, Liu E, Howard SW, Vaughn MG, Perret J, Lodge CC, Zeng XW, Yang BY, Xu SL, Zhang C, Dong GH. Pre-natal and post-natal exposure to pet ownership and lung function in children: The Seven Northeastern Cities Study. INDOOR AIR 2017; 27:1177-1189. [PMID: 28613428 DOI: 10.1111/ina.12401] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/24/2017] [Accepted: 06/07/2017] [Indexed: 06/07/2023]
Abstract
To evaluate the association between pre-natal and post-natal exposure to pet ownership and lung function in children, a cross-sectional study named Seven Northeastern Cities (SNEC) study was conducted. In this study, children's lung function including the forced expiratory volume in 1 second (FEV1 ), forced vital capacity (FVC), maximal mid-expiratory flow (MMEF), and peak expiratory flow (PEF) were measured by spirometers, and pet ownership situations were collected by questionnaire. Analyzed by multiple logistic regression and generalized linear modeling, we found that for all subjects, pet exposure in the first 2 years of life was significantly associated with lung function impairment of FVC<85% predicted (adjusted odds ratio [aOR]=1.28; 95% confidence interval [CI]: 1.01, 1.63). For current pet exposure, the increased odds of lung function impairment ranged from 35% (aOR=1.35; 95%CI: 1.12, 1.62) for FVC<85% predicted to 57% (aOR=1.57; 95%CI: 1.29, 1.93) for FEV1 <85% predicted. The in utero exposure was not related to lung function impairment. Compared with other pets, higher odds were observed among children with dogs. When stratified by gender, girls with current pet exposure were more likely to have lung function impairment than boys. It implies self-reported exposures to pets were negatively associated with lung function among the children under study.
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Affiliation(s)
- L-W Hu
- Guangzhou Key Laboratory of Environmental Pollution and Health Risk Assessment, Department of Preventive Medicine, School of Public Health, Sun Yat-sen University, Guangzhou, China
| | - Z Qian
- Department of Epidemiology, College for Public Health and Social Justice, Saint Louis University, Saint Louis, MO, USA
| | - S C Dharmage
- Allergy and Lung Health Unit, Centre for Epidemiology and Biostatistics, Melbourne School of Population and Global Health, The University of Melbourne, Carlton, VIC, Australia
| | - E Liu
- Department of Health Management & Policy, College for Public Health and Social Justice, Saint Louis University, Saint Louis, MO, USA
| | - S W Howard
- Department of Health Management & Policy, College for Public Health and Social Justice, Saint Louis University, Saint Louis, MO, USA
| | - M G Vaughn
- School of Social Work, College for Public Health and Social Justice, Saint Louis University, Saint Louis, MO, USA
| | - J Perret
- Allergy and Lung Health Unit, Centre for Epidemiology and Biostatistics, Melbourne School of Population and Global Health, The University of Melbourne, Carlton, VIC, Australia
| | - C C Lodge
- Allergy and Lung Health Unit, Centre for Epidemiology and Biostatistics, Melbourne School of Population and Global Health, The University of Melbourne, Carlton, VIC, Australia
| | - X-W Zeng
- Guangzhou Key Laboratory of Environmental Pollution and Health Risk Assessment, Department of Preventive Medicine, School of Public Health, Sun Yat-sen University, Guangzhou, China
| | - B-Y Yang
- Guangzhou Key Laboratory of Environmental Pollution and Health Risk Assessment, Department of Preventive Medicine, School of Public Health, Sun Yat-sen University, Guangzhou, China
| | - S-L Xu
- Guangzhou Key Laboratory of Environmental Pollution and Health Risk Assessment, Department of Preventive Medicine, School of Public Health, Sun Yat-sen University, Guangzhou, China
| | - C Zhang
- Guangzhou Key Laboratory of Environmental Pollution and Health Risk Assessment, Department of Preventive Medicine, School of Public Health, Sun Yat-sen University, Guangzhou, China
| | - G-H Dong
- Guangzhou Key Laboratory of Environmental Pollution and Health Risk Assessment, Department of Preventive Medicine, School of Public Health, Sun Yat-sen University, Guangzhou, China
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10
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Fessler MB, Carnes MU, Salo PM, Wilkerson J, Cohn RD, King D, Hoppin JA, Sandler DP, Travlos G, London S, Thorne P, Zeldin D. House Dust Endotoxin and Peripheral Leukocyte Counts: Results from Two Large Epidemiologic Studies. ENVIRONMENTAL HEALTH PERSPECTIVES 2017; 125:057010. [PMID: 28599265 PMCID: PMC5730525 DOI: 10.1289/ehp661] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/15/2016] [Revised: 09/13/2016] [Accepted: 09/27/2016] [Indexed: 06/07/2023]
Abstract
BACKGROUND The peripheral leukocyte count is a biomarker of inflammation and is associated with human all-cause mortality. Although causes of acute leukocytosis are well-described, chronic environmental determinants of leukocyte number are less well understood. OBJECTIVES We investigated the relationship between house dust endotoxin concentration and peripheral leukocyte counts in human subjects. METHODS The endotoxin–leukocyte relationship was evaluated by linear regression in the National Health and Nutrition Examination Survey (NHANES) 2005–2006 (n=6,254) and the Agricultural Lung Health Study (ALHS; n=1,708). In the ALHS, we tested for a gene [Toll-like Receptor 4 (TLR4), encoding the endotoxin receptor]-by-environment interaction in the endotoxin–leukocyte relationship using regression models with an interaction term. RESULTS There is a statistically significant, positive association between endotoxin concentration and total leukocyte number [estimated change, 0.186×103/μL (95% CI: 0.070, 0.301×103/μL) per 10-fold change in endotoxin; p=0.004) in the NHANES. Similar positive associations were found for monocytes, lymphocytes, and neutrophils. Stratified analyses revealed possible effect modification by asthma and chronic obstructive pulmonary disease. We observed similar associations in the ALHS. For total leukocytes, there was suggestive evidence in the ALHS of a gene-by-environment interaction for minor allele carrier status at the TLR4 haplotype defined by rs4986790 and rs4986791 (interaction p=0.15). CONCLUSIONS This is, to our knowledge, the first report of an association between house dust endotoxin and leukocyte count in a national survey. The finding was replicated in a farming population. Peripheral leukocyte count may be influenced by residential endotoxin exposure in diverse settings. https://doi.org/10.1289/EHP661.
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Affiliation(s)
- Michael B Fessler
- Immunity, Inflammation and Disease Laboratory, National Institute of Environmental Health Sciences (NIEHS), National Institutes of Health (NIH), Department of Health and Human Services (DHHS), Research Triangle Park, North Carolina, USA
| | - Megan U Carnes
- Epidemiology Branch, NIEHS, NIH, DHHS, Research Triangle Park, North Carolina, USA
| | - Päivi M Salo
- Immunity, Inflammation and Disease Laboratory, National Institute of Environmental Health Sciences (NIEHS), National Institutes of Health (NIH), Department of Health and Human Services (DHHS), Research Triangle Park, North Carolina, USA
| | - Jesse Wilkerson
- Social & Scientific Systems, Inc., Durham, North Carolina, USA
| | - Richard D Cohn
- Social & Scientific Systems, Inc., Durham, North Carolina, USA
| | - Debra King
- Clinical Pathology Group, NIEHS, NIH, DHHS, Research Triangle Park, North Carolina, USA
| | - Jane A Hoppin
- Department of Biological Sciences and Center for Human Health and the Environment, North Carolina State University, Raleigh, North Carolina, USA
| | - Dale P Sandler
- Epidemiology Branch, NIEHS, NIH, DHHS, Research Triangle Park, North Carolina, USA
| | - Greg Travlos
- Clinical Pathology Group, NIEHS, NIH, DHHS, Research Triangle Park, North Carolina, USA
| | - Stephanie London
- Immunity, Inflammation and Disease Laboratory, National Institute of Environmental Health Sciences (NIEHS), National Institutes of Health (NIH), Department of Health and Human Services (DHHS), Research Triangle Park, North Carolina, USA
- Epidemiology Branch, NIEHS, NIH, DHHS, Research Triangle Park, North Carolina, USA
| | - Peter Thorne
- Department of Occupational and Environmental Health, College of Public Health, University of Iowa, Iowa City, Iowa 52242, USA
| | - Darryl Zeldin
- Immunity, Inflammation and Disease Laboratory, National Institute of Environmental Health Sciences (NIEHS), National Institutes of Health (NIH), Department of Health and Human Services (DHHS), Research Triangle Park, North Carolina, USA
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Garcia DO, Lander EM, Wertheim BC, Manson JE, Volpe SL, Chlebowski RT, Stefanick ML, Lessin LS, Kuller LH, Thomson CA. Pet Ownership and Cancer Risk in the Women's Health Initiative. Cancer Epidemiol Biomarkers Prev 2016; 25:1311-6. [PMID: 27365150 PMCID: PMC5010503 DOI: 10.1158/1055-9965.epi-16-0218] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2016] [Accepted: 06/16/2016] [Indexed: 12/18/2022] Open
Abstract
BACKGROUND Pet ownership and cancer are both highly prevalent in the United States. Evidence suggests that associations may exist between this potentially modifiable factor and cancer prevention, though studies are sparse. The present report examined whether pet ownership (dog, cat, or bird) is associated with lower risk for total cancer and site-specific obesity-related cancers. METHODS This was a prospective analysis of 123,560 participants (20,981 dog owners; 19,288 cat owners; 1,338 bird owners; and 81,953 non-pet owners) enrolled in the Women's Health Initiative observational study and clinical trials. Cox proportional hazards models were used to estimate HR and 95% confidence intervals for the association between pet ownership and cancer, adjusted for potential confounders. RESULTS There were no significant relationships between ownership of a dog, cat, or bird and incidence of cancer overall. When site-specific cancers were examined, no associations were observed after adjustment for multiple comparisons. CONCLUSION Pet ownership had no association with overall cancer incidence. IMPACT This is the first large epidemiologic study to date to explore relationships between pet ownership and cancer risk, as well as associated risks for individual cancer types. This study requires replication in other sizable, diverse cohorts. Cancer Epidemiol Biomarkers Prev; 25(9); 1311-6. ©2016 AACR.
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Affiliation(s)
- David O Garcia
- Mel & Enid Zuckerman College of Public Health, Department of Health Promotion Sciences, University of Arizona, Tucson, Arizona.
| | - Eric M Lander
- University of Arizona College of Medicine-Tucson, Tucson, Arizona
| | | | - JoAnn E Manson
- Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts
| | - Stella L Volpe
- Department of Nutrition Sciences, Drexel University, Philadelphia, Pennsylvania
| | - Rowan T Chlebowski
- Los Angeles Biomedical Research Institute at Harbor, UCLA Medical Center, Torrance, California
| | - Marcia L Stefanick
- Department of Medicine, Stanford Prevention Research Center, Stanford University School of Medicine, Stanford, California
| | - Lawrence S Lessin
- Washington Cancer Institute, Washington Hospital Center, Washington, DC
| | - Lewis H Kuller
- Department of Epidemiology, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Cynthia A Thomson
- Mel & Enid Zuckerman College of Public Health, Department of Health Promotion Sciences, University of Arizona, Tucson, Arizona
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13
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Konradsen JR, Fujisawa T, van Hage M, Hedlin G, Hilger C, Kleine-Tebbe J, Matsui EC, Roberts G, Rönmark E, Platts-Mills TAE. Allergy to furry animals: New insights, diagnostic approaches, and challenges. J Allergy Clin Immunol 2014; 135:616-25. [PMID: 25282018 DOI: 10.1016/j.jaci.2014.08.026] [Citation(s) in RCA: 122] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2014] [Revised: 07/08/2014] [Accepted: 08/05/2014] [Indexed: 12/16/2022]
Abstract
The prevalence of allergy to furry animals has been increasing, and allergy to cats, dogs, or both is considered a major risk factor for the development of asthma and rhinitis. An important step forward in the diagnosis of allergy to furry animals has been made with the introduction of molecular-based allergy diagnostics. A workshop on furry animals was convened to provide an up-to-date assessment of our understanding of (1) the exposure and immune response to the major mammalian allergens, (2) the relationship of these responses (particularly those to specific proteins or components) to symptoms, and (3) the relevance of these specific antibody responses to current or future investigation of patients presenting with allergic diseases. In this review research results discussed at the workshop are presented, including the effect of concomitant exposures from other allergens or microorganisms, the significance of the community prevalence of furry animals, molecular-based allergy diagnostics, and a detailed discussion of cat and dog components.
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Affiliation(s)
- Jon R Konradsen
- Department of Women's and Children's Health, Karolinska Institutet, Stockholm, Sweden; Centre for Allergy Research, Karolinska Institutet, Stockholm, Sweden; Astrid Lindgren Children's Hospital, Karolinska University Hospital, Stockholm, Sweden.
| | - Takao Fujisawa
- Institute for Clinical Research, Mie National Hospital, Mie, Japan
| | - Marianne van Hage
- Clinical Immunology and Allergy Unit, Department of Medicine, Karolinska Institutet and University Hospital, Stockholm, Sweden
| | - Gunilla Hedlin
- Department of Women's and Children's Health, Karolinska Institutet, Stockholm, Sweden; Centre for Allergy Research, Karolinska Institutet, Stockholm, Sweden; Astrid Lindgren Children's Hospital, Karolinska University Hospital, Stockholm, Sweden
| | - Christiane Hilger
- Laboratory of Immunogenetics and Allergology, CRP-Santé, Luxembourg, Luxembourg
| | - Jörg Kleine-Tebbe
- Allergy & Asthma Center Westend, Outpatient Clinic and Research Unit, Berlin, Germany
| | - Elizabeth C Matsui
- Division of Pediatric Allergy/Immunology, Johns Hopkins School of Medicine, Baltimore, Md
| | - Graham Roberts
- David Hide Asthma and Allergy Research Centre, St Mary's Hospital, Isle of Wight, United Kingdom; Human Development and Health and Clinical and Experimental Sciences Academic Units, University of Southampton Faculty of Medicine, Southampton, United Kingdom; NIHR Respiratory Biomedical Research Unit, University Hospital Southampton NHS Foundation Trust, Southampton, United Kingdom
| | - Eva Rönmark
- Department of Public Health and Clinical Medicine, Occupational and Environmental Medicine, Umeå University, Umeå, Sweden
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Moghtaderi M, Farjadian S, Abbaszadeh Hasiri M. Animal allergen sensitization in veterinarians and laboratory animal workers. Occup Med (Lond) 2014; 64:516-20. [PMID: 25104279 DOI: 10.1093/occmed/kqu097] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND Animals secrete allergens into the environment and exposure to these in the workplace may cause sensitization. AIMS To identify the frequency of animal allergen sensitization and symptoms in animal workers. METHODS Using skin prick tests (SPT), we assessed sensitization to 15 mammal and bird allergens in animal workers and controls. We also recorded symptoms and pulmonary function tests. RESULTS There were 100 animal workers and 50 controls included in the study. Thirty-six per cent of animal workers and 10% of controls had positive SPT (P < 0.001, odds ratio [OR] = 5.1, 95% CI 1.7-16.0). The most common sensitizations were to horse (16% in animal workers versus 0% in controls, P < 0.01), canary (16% in animal workers versus 2% in controls, P < 0.05, OR = 9.3, 95% CI 1.2-194), cattle (13% in animal workers versus 0% in controls, P < 0.05), cat (12% in animal workers versus 6% in controls, not significant), rabbit and hamster (10% each in animal workers versus 0% in controls, P < 0.05). Allergy symptoms were reported by 52 animal workers, but only 36 of them had positive SPT. Twelve animal workers had abnormal pulmonary function tests and six had positive SPT. CONCLUSIONS Animal workers are at high risk of occupational sensitization to animal allergens. Exposure should be minimized through control measures and worker education about the risks of exposure and sensitization.
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Affiliation(s)
- M Moghtaderi
- Allergy Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - S Farjadian
- Allergy Research Center, Shiraz University of Medical Sciences, Shiraz, Iran, Department of Immunology, Shiraz University of Medical Sciences, Shiraz, Iran,
| | - M Abbaszadeh Hasiri
- Department of Clinical Sciences, Veterinary School, Shiraz University, Shiraz, Iran
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Salonen H, Duchaine C, Létourneau V, Mazaheri M, Clifford S, Morawska L. Endotoxins in indoor air and settled dust in primary schools in a subtropical climate. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2013; 47:9882-9890. [PMID: 23927534 DOI: 10.1021/es4023706] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Endotoxins can significantly affect the air quality in school environments. However, there is currently no reliable method for the measurement of endotoxins, and there is a lack of reference values for endotoxin concentrations to aid in the interpretation of measurement results in school settings. We benchmarked the "baseline" range of endotoxin concentration in indoor air, together with endotoxin load in floor dust, and evaluated the correlation between endotoxin levels in indoor air and settled dust, as well as the effects of temperature and humidity on these levels in subtropical school settings. Bayesian hierarchical modeling indicated that the concentration in indoor air and the load in floor dust were generally (<95th percentile) <13 EU/m(3) and <24,570 EU/m(2), respectively. Exceeding these levels would indicate abnormal sources of endotoxins in the school environment and the need for further investigation. Metaregression indicated no relationship between endotoxin concentration and load, which points to the necessity for measuring endotoxin levels in both the air and settled dust. Temperature increases were associated with lower concentrations in indoor air and higher loads in floor dust. Higher levels of humidity may be associated with lower airborne endotoxin concentrations.
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Affiliation(s)
- Heidi Salonen
- International Laboratory for Air Quality and Health, Queensland University of Technology , 2 George Street, Brisbane Q 4001, Australia
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