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Sun BZ, Gaffin JM. Recent Insights into the Environmental Determinants of Childhood Asthma. Curr Allergy Asthma Rep 2024; 24:253-260. [PMID: 38498229 DOI: 10.1007/s11882-024-01140-2] [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] [Accepted: 03/07/2024] [Indexed: 03/20/2024]
Abstract
PURPOSE OF REVIEW Ubiquitous environmental exposures, including ambient air pollutants, are linked to the development and severity of childhood asthma. Advances in our understanding of these links have increasingly led to clinical interventions to reduce asthma morbidity. RECENT FINDINGS We review recent work untangling the complex relationship between air pollutants, including particulate matter, nitrogen dioxide, and ozone and asthma, such as vulnerable windows of pediatric exposure and their interaction with other factors influencing asthma development and severity. These have led to interventions to reduce air pollutant levels in children's homes and schools. We also highlight emerging environmental exposures increasingly associated with childhood asthma. Growing evidence supports the present threat of climate change to children with asthma. Environmental factors play a large role in the pathogenesis and persistence of pediatric asthma; in turn, this poses an opportunity to intervene to change the course of disease early in life.
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Affiliation(s)
- Bob Z Sun
- Division of Pulmonary Medicine, Department of Pediatrics, Boston Children's Hospital, 300 Longwood Ave, BCH 3121, Boston, MA, 02114, USA
- Harvard Medical School, Boston, MA, USA
| | - Jonathan M Gaffin
- Division of Pulmonary Medicine, Department of Pediatrics, Boston Children's Hospital, 300 Longwood Ave, BCH 3121, Boston, MA, 02114, USA.
- Harvard Medical School, Boston, MA, USA.
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2
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Riley KW, Guo J, Wang S, Factor-Litvak P, Miller RL, Andrews H, Hoepner LA, Margolis AE, Rauh V, Rundle A, Perera F, Herbstman JB. Cohort Profile: The Mothers and Newborns (MN) Cohort of the Columbia Center for Children's Environmental Health. Int J Epidemiol 2024; 53:dyae011. [PMID: 38327188 PMCID: PMC10850846 DOI: 10.1093/ije/dyae011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Accepted: 01/26/2024] [Indexed: 02/09/2024] Open
Affiliation(s)
- Kylie W Riley
- Department of Environmental Health Sciences, Mailman School of Public Health, Columbia University, New York, NY, USA
| | - Jia Guo
- Department of Biostatistics, Mailman School of Public Health, Columbia University, New York, NY, USA
| | - Shuang Wang
- Department of Biostatistics, Mailman School of Public Health, Columbia University, New York, NY, USA
| | - Pam Factor-Litvak
- Department of Epidemiology, Mailman School of Public Health, Columbia University, New York, NY, USA
| | - Rachel L Miller
- Division of Clinical Immunology, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Howard Andrews
- Department of Biostatistics, Mailman School of Public Health, Columbia University, New York, NY, USA
| | - Lori A Hoepner
- Department of Environmental and Occupational Health Sciences, School of Public Health, State University of New York Downstate Health Sciences University, Brooklyn, NY, USA
| | - Amy E Margolis
- Department of Psychiatry, Vagelos College of Physicians and Surgeons, Columbia University, New York, NY, USA
| | - Virginia Rauh
- Department of Population and Family Health, Mailman School of Public Health, Columbia University, New York, NY, USA
| | - Andrew Rundle
- Department of Epidemiology, Mailman School of Public Health, Columbia University, New York, NY, USA
| | - Frederica Perera
- Department of Environmental Health Sciences, Mailman School of Public Health, Columbia University, New York, NY, USA
| | - Julie B Herbstman
- Department of Environmental Health Sciences, Mailman School of Public Health, Columbia University, New York, NY, USA
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3
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Jackson-Browne MS, Patti MA, Henderson NB, Hauptman M, Phipatanakul W. Asthma and Environmental Exposures to Phenols, Polycyclic Aromatic Hydrocarbons, and Phthalates in Children. Curr Environ Health Rep 2023; 10:469-477. [PMID: 37973722 PMCID: PMC10877704 DOI: 10.1007/s40572-023-00417-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/24/2023] [Indexed: 11/19/2023]
Affiliation(s)
- Medina S Jackson-Browne
- Division of General Pediatrics, Boston Children's Hospital, Member of the Faculty, Harvard Medical School, 300 Longwood Avenue, LM 7605.1, Boston, MA, 02115, USA.
- Harvard Medical School, Harvard University, Boston, MA, USA.
| | - Marisa A Patti
- AJ Drexel Autism Institute, Drexel University, Philadelphia, PA, USA
| | - Noelle B Henderson
- Department of Environmental Health, Boston University School of Public Health, Boston University, Boston, MA, USA
| | - Marissa Hauptman
- Division of General Pediatrics, Boston Children's Hospital, Member of the Faculty, Harvard Medical School, 300 Longwood Avenue, LM 7605.1, Boston, MA, 02115, USA
- Harvard Medical School, Harvard University, Boston, MA, USA
- New England Pediatric Environmental Health Specialty Unit, Boston, MA, USA
| | - Wanda Phipatanakul
- Harvard Medical School, Harvard University, Boston, MA, USA
- Division of Allergy and Immunology, Boston Children's Hospital, Boston, MA, USA
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Aslam R, Sharif F, Baqar M, Nizami AS. Association of human cohorts exposed to blood and urinary biomarkers of PAHs with adult asthma in a South Asian metropolitan city. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:35945-35957. [PMID: 36538227 DOI: 10.1007/s11356-022-24445-z] [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: 04/04/2022] [Accepted: 11/24/2022] [Indexed: 06/17/2023]
Abstract
Semi-volatile organic compounds (SVOCs) are a major global problem that causes the greatest impact on urban settings and have been linked to bronchial asthma in both children and adults in Pakistan. The association between exposure of polycyclic aromatic hydrocarbons (PAHs) and asthma in the adult population is less clear. The current study aimed to assess the clinico-chemical parameters and blood levels of naphthalene phenanthrene, pyrene, and 1,2-benzanthracene and urinary levels of 1-OH pyrene and 1-OH phenanthrene as well as asthma-related biomarkers immunoglobulin E (IgE), resistin, and superoxide dismutase (SOD) of oxidative stress and other hematologic parameters in adults and their relationship with bronchial asthma. The GC/MS analysis showed higher mean concentrations of blood PAHs in asthma respondents (4.48 ± 1.34, 3.46 ± 1.04, 0.10 ± 0.03, and 0.29 ± 0.09) (ng/mL) as compared to controls (3.07 ± 0.92, 1.71 ± 0.51, 0.06 ± 0.02, and 0.11 ± 0.03) (ng/mL), with p = .006, p = .001, p = .050, and p = .001. Similarly, urinary levels of 1-OHpyr and 1-OHphe were significantly increased in adults with bronchial asthma (0.54 ± 0.16; 0.13 ± 0.04) (μmol/mol-Cr) than in controls (0.30 ± 0.09; 0.05 ± 0.02) (μmol/mol-Cr), with p = .002 and p = .0001, respectively, with a significant positive correlation to asthma severity. The asthma-related biomarkers IgE, resistin, and SOD were significantly higher (p 0.0001, 0.0001, and 0.0001) in people with asthma than in control persons. The findings showed that higher blood and urine PAHs levels were linked to higher asthma risk in adults and significant interaction with participants who smoked, had allergies, had a family history of asthma, and were exposed to dust. The current study's findings will be useful to local regulatory agencies in Lahore in terms of managing exposure and advocating efforts to minimize PAH pollution and manage health.
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Affiliation(s)
- Rabia Aslam
- Sustainable Development Study Centre (SDSC), Government College University, Lahore, 54000, Pakistan.
| | - Faiza Sharif
- Sustainable Development Study Centre (SDSC), Government College University, Lahore, 54000, Pakistan
| | - Mujtaba Baqar
- Sustainable Development Study Centre (SDSC), Government College University, Lahore, 54000, Pakistan.
| | - Abdul-Sattar Nizami
- Sustainable Development Study Centre (SDSC), Government College University, Lahore, 54000, Pakistan
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Fang B, Bravo MA, Wang H, Sheng L, Wu W, Zhou Y, Xi X, Østbye T, Liu Q. Polycyclic aromatic hydrocarbons are associated with later puberty in girls: A longitudinal study. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 846:157497. [PMID: 35868395 DOI: 10.1016/j.scitotenv.2022.157497] [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: 03/08/2022] [Revised: 07/15/2022] [Accepted: 07/15/2022] [Indexed: 06/15/2023]
Abstract
The objective of this study is to explore associations between PAH exposures and puberty timing in girls. Beginning in May 2014, 734 girls age 7.2-11.8 years in Chongqing, China, were enrolled in a prospective cohort study. They were followed up every 6 months from enrollment through June 2021, at which point participants were ages 13.6-18.3 years. Metabolite concentrations of four PAHs (1-hydroxypyrene [1-OHPyr], 2-hydroxynaphthalene [2-OHNap], 2-hydroxyfluorine [2-OHFlu], and 9-hydroxyphenanthrene [9-OHPhe]) were measured in urine samples at baseline. At each follow up visit, the Tanner's Sexual Maturity Rating scale was administered. Cox proportional hazards models were used to estimate associations between four urinary PAH metabolite concentrations and four markers of puberty: menarche, breast development, pubic hair development, and axillary hair development. Geometric mean concentrations of 1-OHPyr, 2-OHNap, 2-OHFlu and 9-OHPhe in urine were 0.47 μg/L, 3.31 μg/L, 1.49 μg/L, 3.75 μg/L, respectively. There were statistically significant associations between several urinary PAH metabolite concentrations and puberty outcomes. PAH metabolite concentrations were grouped as Low (<25th percentile, referent group), Moderate (25th-75th percentile) or High (>75th). Girls with moderate levels of 1-OHPyr were at higher risk of delayed pubic hair development (hazard ratio [HR]: 0.82, 95 % confidence interval [CI]: 0.68-0.99). Delayed breast development (HR: 0.77, 95 % CI: 0.60-0.99) and pubic hair development (HR: 0.76, 95 % CI: 0.60-0.95) were associated with high 2-OHNap. High c 2-OHFlu was associated with delayed pubic hair development (HR: 0.77, 95 % CI: 0.61-0.96). Delayed breast (HR: 0.79, 95 % CI: 0.64-0.97), pubic hair (HR: 0.79, 95 % CI: 0.65-0.96) and axillary hair development (HR: 0.80, 95 % CI: 0.65-0.99) was associated with moderate 9-OHPhe. In conclusion, PAH exposure may delay puberty onset in girls.
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Affiliation(s)
- Bo Fang
- School of Public Health, Research Center for Medicine and Social Development, Chongqing Medical University, Chongqing, China
| | - Mercedes A Bravo
- Duke Global Health Institute, Duke University, Durham, NC, United States
| | - Hong Wang
- School of Public Health, Research Center for Medicine and Social Development, Chongqing Medical University, Chongqing, China
| | - Lulu Sheng
- School of Public Health, Research Center for Medicine and Social Development, Chongqing Medical University, Chongqing, China
| | - Wenyi Wu
- School of Public Health, Research Center for Medicine and Social Development, Chongqing Medical University, Chongqing, China
| | - Yuanke Zhou
- School of Public Health, Research Center for Medicine and Social Development, Chongqing Medical University, Chongqing, China
| | - Xuan Xi
- School of Public Health, Research Center for Medicine and Social Development, Chongqing Medical University, Chongqing, China
| | - Truls Østbye
- Department of Family Medicine & Community Health and Duke Global Health Institute, Duke University, Durham, NC, United States
| | - Qin Liu
- School of Public Health, Research Center for Medicine and Social Development, Chongqing Medical University, Chongqing, China.
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Tabatabaei Z, Shamsedini N, Mohammadpour A, Baghapour MA, Hoseini M. Exposure assessment of children living in homes with hookah smoking parents to polycyclic aromatic hydrocarbons: urinary level, exposure predictors, and risk assessment. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:68667-68679. [PMID: 35543784 PMCID: PMC9091547 DOI: 10.1007/s11356-022-20589-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/22/2022] [Accepted: 04/29/2022] [Indexed: 06/15/2023]
Abstract
Children are extremely liable to indoor air pollutants as their physiology and a few metabolic pathways are different from those of adults. The present cross-sectional study aimed to assess exposure of children living with parents who use hookah tobacco smoke to polycyclic aromatic hydrocarbons (PAHs) using a biomonitoring approach. The study was conducted on 25 children (7-13 years of age) exposed to hookah smoke at home and 25 unexposed age-matched children. Urinary levels of five metabolites of PAHs were quantified via headspace gas chromatography-mass spectrometry (GC-MS). Urinary malondialdehyde (MDA) was measured, as well. Information regarding the sociodemographic and lifestyle conditions was collected through interviews using managed questionnaires. The urinary 1-OH-NaP and 9-OH-Phe concentrations were respectively 1.7- and 4.6-folds higher in the case samples compared to the control group (p < 0.05). In addition, urinary MDA levels were 1.4 times higher in the exposed children than in the unexposed group, but the difference was not statistically significant (p > 0.05). Increasing the consumption of grilled and meat food in the diet increased the participants' urinary 2-OH-Flu and 1-OH-Pyr levels, respectively. Moreover, sleeping in the living room instead of the bedroom at night was a significant predictor of high 1-OH-NaP and 2-OH-NaP concentrations in the children's urine. Overall, the findings confirmed that children living in their homes with hookah-smoking parents were significantly exposed to naphthalene and phenanthrene. Hence, implementing protective measures is critical to reduce the exposure of this group of children.
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Affiliation(s)
- Zeynab Tabatabaei
- Student Research Committee, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Narges Shamsedini
- Student Research Committee, Shiraz University of Medical Sciences, Shiraz, Iran
- Fars Water and Wastewater Company, Shiraz, Iran
| | - Amin Mohammadpour
- Student Research Committee, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Mohammad Ali Baghapour
- Research Center for Health Sciences, Department of Environmental Health Engineering, School of Health, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Mohammad Hoseini
- Research Center for Health Sciences, Department of Environmental Health Engineering, School of Health, Shiraz University of Medical Sciences, Shiraz, Iran.
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Jung KH, Goodwin KE, Perzanowski MS, Chillrud SN, Perera FP, Miller RL, Lovinsky-Desir S. Personal Exposure to Black Carbon at School and Levels of Fractional Exhaled Nitric Oxide in New York City. ENVIRONMENTAL HEALTH PERSPECTIVES 2021; 129:97005. [PMID: 34495741 PMCID: PMC8425518 DOI: 10.1289/ehp8985] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Revised: 08/12/2021] [Accepted: 08/13/2021] [Indexed: 06/13/2023]
Abstract
BACKGROUND Schools are often located near traffic sources, leading to high levels of exposure to traffic-related air pollutants, including black carbon (BC). Thus, the school environment could play in a significant role in the adverse respiratory health of children. OBJECTIVES Our objective was to determine associations between personal BC levels at school and airway inflammation [i.e., fractional exhaled nitric oxide (FeNO)] in school-age children. We hypothesized that higher school BC (SBC) would be associated with higher FeNO. METHODS Children 9-14 years of age in New York City (NYC) (n=114) wore BC monitors for two 24-h periods over a 6-d sampling period, repeated 6 months later. SBC was defined as the average personal BC concentrations measured during NYC school hours (i.e., 0830-1430 hours). FeNO was measured following each 24-h BC monitoring period. Multivariable linear regression in generalized estimating equation models were used to examine associations between SBC and FeNO. Results are presented as percentage difference (PD) in FeNO. RESULTS Personal BC at school was associated with higher FeNO (PD=7.47% higher FeNO per 1-μg/m3 BC (95% CI: 1.31, 13.9), p=0.02]. Compared with BC exposure during school, a smaller PD in FeNO was observed in association with BC exposure while commuting to and from school [PD=6.82% (95% CI: 0.70, 13.3), p=0.03]. Personal BC in non-school environments and residential BC were not associated with FeNO (p>0.05). A significant association between personal BC at school and FeNO was observed among children with seroatopy who did not have asthma [PD=21.5% (95% CI: 4.81, 40.9), p=0.01]. DISCUSSION Schools may be important sources of BC exposure that contribute to airway inflammation in school-age children. Our results provide rationale for interventions that target improved air quality in urban schools and classrooms. https://doi.org/10.1289/EHP8985.
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Affiliation(s)
- Kyung Hwa Jung
- Division of Pediatric Pulmonary, Department of Pediatrics, College of Physicians and Surgeons, Columbia University, New York, New York, USA
| | - Kathleen E. Goodwin
- Division of Pediatric Pulmonary, Department of Pediatrics, College of Physicians and Surgeons, Columbia University, New York, New York, USA
| | - Matthew S. Perzanowski
- Mailman School of Public Health, Department of Environmental Health Sciences, Columbia University, New York, New York, USA
| | - Steven N. Chillrud
- Lamont-Doherty Earth Observatory, Columbia University, New York, New York, USA
| | - Frederica P. Perera
- Mailman School of Public Health, Department of Environmental Health Sciences, Columbia University, New York, New York, USA
| | - Rachel L. Miller
- Division of Clinical Immunology, Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Stephanie Lovinsky-Desir
- Division of Pediatric Pulmonary, Department of Pediatrics, College of Physicians and Surgeons, Columbia University, New York, New York, USA
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Yoshida T, Mimura M, Sakon N. Estimating household exposure to moth repellents p-dichlorobenzene and naphthalene and the relative contribution of inhalation pathway in a sample of Japanese children. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 783:146988. [PMID: 34088142 DOI: 10.1016/j.scitotenv.2021.146988] [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: 01/15/2021] [Revised: 04/01/2021] [Accepted: 04/02/2021] [Indexed: 06/12/2023]
Abstract
p-Dichlorobenzene (DCB) and naphthalene (NP) used as moth repellents in indoor environments are suspected to be carcinogenic. To evaluate their adverse effects on health with chronic exposure in the general population, especially children, we need to know their amounts absorbed by the body and the relationships between their amounts and air quality in residences. At present, little is known worldwide about them. This study examined the daily intakes of DCB and NP by Japanese children via all exposure pathways and the contribution of indoor air quality to the intakes. First-morning void urine samples from the subjects aged 6 to 15 years and air samples in their bedrooms were collected. Airborne NP and DCB and their urinary metabolites were measured. Significant correlations were detected between their airborne concentrations and the urinary excretion amounts of their corresponding metabolites. The absorption amounts of DCB and NP by inhalation of the children while at home were calculated to be 26 and 2.0 ng/kg b.w./h, respectively, as median values. The daily intake was estimated to be 2.4 and 0.90 μg/kg b.w./d (median), respectively. The fractions (median) of inhalation absorption amounts to overall absorption amounts for DCB and NP were 30% and 5%, respectively. In children living in residences where the indoor air concentrations of these compounds were more than half the level of each guideline value for indoor air quality, the main exposure route for their absorption was considered to be inhalation while at home. The indoor concentrations of DCB exceeded the lifetime excess cancer risk level of 10-4 in 22% of the residences and 10-3 in 9% of them. Our findings indicate the need to further reduce airborne concentrations of DCB in Japanese residences to prevent its adverse effects on the health of Japanese children.
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Affiliation(s)
- Toshiaki Yoshida
- Osaka Institute of Public Health, 1-3-69, Nakamichi, Higashinari-ku, Osaka 537-0025, Japan.
| | - Mayumi Mimura
- Osaka Institute of Public Health, 1-3-69, Nakamichi, Higashinari-ku, Osaka 537-0025, Japan
| | - Naomi Sakon
- Osaka Institute of Public Health, 1-3-69, Nakamichi, Higashinari-ku, Osaka 537-0025, Japan
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Lee NG, Kim HK, Choi GS. Comparison of inhalant allergen sensitization between children, adolescents, and adults with asthma and allergic rhinitis. ALLERGY ASTHMA & RESPIRATORY DISEASE 2021. [DOI: 10.4168/aard.2021.9.3.148] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Affiliation(s)
- Na Gyeom Lee
- Department of Internal Medicine, Kosin University College of Medicine, Busan, Korea
| | - Hee-Kyoo Kim
- Department of Internal Medicine, Kosin University College of Medicine, Busan, Korea
| | - Gil Soon Choi
- Department of Internal Medicine, Kosin University College of Medicine, Busan, Korea
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Huang X, Deng X, Li W, Liu S, Chen Y, Yang B, Liu Q. Internal exposure levels of polycyclic aromatic hydrocarbons in children and adolescents: a systematic review and meta-analysis. Environ Health Prev Med 2019; 24:50. [PMID: 31351468 PMCID: PMC6661086 DOI: 10.1186/s12199-019-0805-9] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2019] [Accepted: 07/12/2019] [Indexed: 11/29/2022] Open
Abstract
Polycyclic aromatic hydrocarbons (PAHs) are widely found in the environment, and comparing to adults, children are more vulnerable to PAHs exposure. Urinary metabolites of PAHs are used as preferred biomarkers to estimate the PAHs exposure. Systematic review on the internal exposure level of children and adolescents is rare. We aimed to calculate the internal exposure levels of PAHs in children and adolescents and compare the levels of PAHs internal exposure in various children groups. We searched PubMed, OVID, Web of Science, EBSCO, ACS, and four Chinese databases, and all studies examining the urinary concentrations of PAHs in children and adolescent were identified. The total exposure level of 11 PAHs metabolites were pooled. Standard mean difference (SMD) and 95% confidence intervals (CIs) of PAHs urinary concentration were calculated and pooled by RevMan5.3 to compare the exposure levels of different children groups. We found that 1-OHPyr, 2-OHNap, 2-OHFlu, 3-OHPhe, and 4-OHPhe were five PAHs metabolites most commonly studied in existing studies in children, and their total exposure levels were 0.38 ± 0.98, 2.32 ± 4.83, 0.81 ± 1.54, 0.09 ± 0.14, 0.03 ± 0.10 μmol/mol creatinine, respectively. The meta-analysis showed that the levels of 1-OHPyr were higher in higher environmental exposure group (SMD = 0.21, 95% CI = 0.03~0.40), ETS exposure group (SMD = 0.31, 95% CI = 0.08~0.54), and 6~11 years group (SMD = 0.16, 95% CI = 0.09~0.24); the level of 2-OHNap (SMD = 0.27, 95% CI = 0.01~0.53) was higher in higher environmental exposure group; however, the levels of 3-OHPhe (SMD = − 0.34, 95% CI = − 0.57~− 0.12) and 4-OHPhe (SMD = − 0.48, 95% CI = − 0.69~− 0.28) were higher in lower environmental exposure group. The levels of 1-OHPyr (SMD = − 0.01, 95% CI = − 0.11~0.10) and 2-OHNap (SMD = 0.01, 95% CI = − 0.20~0.22) were not statistically different between boys and girls. In conclusions, we found that the internal diversity of PAHs existed in children and adolescents, and the level of 1-OHPyr in children and adolescents was in higher status compared with non-occupational people who do not smoke.
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Affiliation(s)
- Xin Huang
- School of Public Health and Management, Research Center for Medicine and Social Development, Collaborative Innovation Center of Social Risks Governance in Health, Chongqing Medical University, No. 1 Yixueyuan Road Yuzhong District, Chongqing, 400016, China
| | - Xu Deng
- School of Public Health and Management, Research Center for Medicine and Social Development, Collaborative Innovation Center of Social Risks Governance in Health, Chongqing Medical University, No. 1 Yixueyuan Road Yuzhong District, Chongqing, 400016, China
| | - Wenyan Li
- School of Public Health and Management, Research Center for Medicine and Social Development, Collaborative Innovation Center of Social Risks Governance in Health, Chongqing Medical University, No. 1 Yixueyuan Road Yuzhong District, Chongqing, 400016, China
| | - Shudan Liu
- School of Public Health and Management, Research Center for Medicine and Social Development, Collaborative Innovation Center of Social Risks Governance in Health, Chongqing Medical University, No. 1 Yixueyuan Road Yuzhong District, Chongqing, 400016, China
| | - Yiwen Chen
- School of Public Health and Management, Research Center for Medicine and Social Development, Collaborative Innovation Center of Social Risks Governance in Health, Chongqing Medical University, No. 1 Yixueyuan Road Yuzhong District, Chongqing, 400016, China
| | - Bo Yang
- School of Public Health and Management, Research Center for Medicine and Social Development, Collaborative Innovation Center of Social Risks Governance in Health, Chongqing Medical University, No. 1 Yixueyuan Road Yuzhong District, Chongqing, 400016, China
| | - Qin Liu
- School of Public Health and Management, Research Center for Medicine and Social Development, Collaborative Innovation Center of Social Risks Governance in Health, Chongqing Medical University, No. 1 Yixueyuan Road Yuzhong District, Chongqing, 400016, China.
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11
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Rosser F, Han YY, Forno E, Celedón JC. Urinary polycyclic aromatic hydrocarbons and allergic sensitization in a nationwide study of children and adults in the United States. J Allergy Clin Immunol 2018; 142:1641-1643.e6. [PMID: 30036599 PMCID: PMC6226314 DOI: 10.1016/j.jaci.2018.07.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2018] [Revised: 06/15/2018] [Accepted: 07/10/2018] [Indexed: 10/28/2022]
Affiliation(s)
- Franziska Rosser
- Division of Pediatric Pulmonary Medicine, Children's Hospital of Pittsburgh of UPMC, University of Pittsburgh, Pittsburgh, Pa
| | - Yueh-Ying Han
- Division of Pediatric Pulmonary Medicine, Children's Hospital of Pittsburgh of UPMC, University of Pittsburgh, Pittsburgh, Pa
| | - Erick Forno
- Division of Pediatric Pulmonary Medicine, Children's Hospital of Pittsburgh of UPMC, University of Pittsburgh, Pittsburgh, Pa
| | - Juan C Celedón
- Division of Pediatric Pulmonary Medicine, Children's Hospital of Pittsburgh of UPMC, University of Pittsburgh, Pittsburgh, Pa.
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Urinary polycyclic aromatic hydrocarbon metabolites and adult asthma: a case-control study. Sci Rep 2018; 8:7658. [PMID: 29769601 PMCID: PMC5956083 DOI: 10.1038/s41598-018-26021-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2017] [Accepted: 05/01/2018] [Indexed: 12/27/2022] Open
Abstract
Polycyclic aromatic hydrocarbons (PAHs) exposure was reported to be associated with childhood asthma. However, the quantitative relationship between PAHs exposure and adult asthma and possible inflammatory pathways are less clear. We aimed to investigate potential associations between urinary PAHs metabolites and adult asthma. We enrolled 507 adult asthma cases and 536 matched controls. The concentrations of 12 urinary PAHs metabolites and plasma cytokines of interleukin (IL)-9 and eotaxin were measured. Potential associations between urinary PAHs metabolites and adult asthma were analyzed by logistic regression. The relationships between urinary PAHs metabolites and plasma cytokines were determined by generalized linear regression. After adjusted for covariates, each 1-unit-increase in natural log-transformed concentrations of 2-hydroxyfluorene (2-OHFLU), 4- hydroxyphenanthrene (4-OHPHE), 1-OHPHE, 2-OHPHE, 1-Hydroxypyrene (1-OHPYR) and ∑OH-PAHs were significantly associated with elevated risk of adult asthma with odds ratios of 2.04, 2.38, 2.04, 1.26, 2.35 and 1.34, respectively. And the associations were more pronounced in the subjects who were female, younger than 45 years, smoker and had history of occupational dust exposure. No associations were observed between urinary PAHs metabolites levels and expressions of IL-9 and eotaxin. Our results demonstrated that elevated urinary PAHs metabolites levels were associated with increased risk of asthma in adults.
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Liu S, Liu Q, Ostbye T, Story M, Deng X, Chen Y, Li W, Wang H, Qiu J, Zhang J. Levels and risk factors for urinary metabolites of polycyclic aromatic hydrocarbons in children living in Chongqing, China. THE SCIENCE OF THE TOTAL ENVIRONMENT 2017; 598:553-561. [PMID: 28454027 DOI: 10.1016/j.scitotenv.2017.04.103] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/13/2017] [Revised: 04/13/2017] [Accepted: 04/13/2017] [Indexed: 05/25/2023]
Abstract
AIMS Since childhood exposure to polycyclic aromatic hydrocarbons (PAHs) have been associated with a variety of adverse health outcomes, the aims of this study were to1) document PAH exposure levels among children in Chongqing, China by measuring urinary concentrations of four PAH metabolites, 1-hydroxypyrene (1-OHPyr), 2-hydroxynaphthalene (2-OHNap), 2-hydroxyfluorine (2-OHFlu) and 9-hydroxyphenanthrene (9-OHPhe), and 2) assess the associations of urinary concentrations of these PAH metabolites with risk factors related to sources of PAHs inhalation and ingestion exposures and with personal attributes such as sex, age, and BMI. METHODS The present study is a cross-sectional analysis using data drawn from the third follow up of a longitudinal study. Purposive sampling was used with all students in grades one to four in four schools being eligible to participate. The baseline survey included a total of 1237 students 5.8 to 12.2years of age. At the third follow up survey, 1.5years after the baseline survey, 1230 of the children had a physical exam and provided urine samples. Their parents completed a questionnaire including social-demographic information and possible sources of children's exposure to PAHs. Urine samples were measured for the four OH-PAHs using an HPLC-MS/MS technique. Concentrations were corrected by specific gravity. Linear regression analysis was used to investigate factors related to sources of PAHs exposure. RESULTS The urinary concentrations were highest for 9-OHPhe (median at the range of 3661ng/L), followed by 2-OHNap (3189ng/L), 2-OHFlu (1116ng/L), and 1-OHPyr (250ng/L). In multiple linear regressions, being female (P=0.04), school location near a thermal power plant (P=0.02) and higher maternal age at birth (P<0.01) were associated with increased concentrations of urinary 1-OHPyr; no significant associations were found for 2-OHNap; school location near a thermal power plant (P<0.01) and lower family income (P<0.01) were associated with increased concentrations of urinary 2-OHFlu; higher age (P<0.01), school location near a thermal power plant (P=0.01), frequent consumption of smoked foods (P=0.04) and lower family income (P=0.07) were all found to be associated with increased concentrations of 9-OHPhe. CONCLUSIONS Urinary concentrations of OH-PAHs, especially 9-OHPhe, were elevated in Chongqing Children compared to children in other countries. Being female, older age, school location near an industrial site, frequent consumption of smoked foods and lower family income were all associated with higher OH-PAHs concentrations. Further cohort studies are needed to confirm the associations between potential exposure sources and children's exposure to PAHs, in order to provide recommendations to reduce exposure.
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Affiliation(s)
- Shudan Liu
- School of Public Health and Management, Research Center for Medicine and Social Development, Innovation Center for Social Risk Governance in Health, Chongqing Medical University, Chongqing 400016, China
| | - Qin Liu
- School of Public Health and Management, Research Center for Medicine and Social Development, Innovation Center for Social Risk Governance in Health, Chongqing Medical University, Chongqing 400016, China.
| | - Truls Ostbye
- Department of Community and Family Medicine and Duke Global Health Institute, Duke University, Durham, NC 27708, USA
| | - Mary Story
- Department of Community and Family Medicine and Duke Global Health Institute, Duke University, Durham, NC 27708, USA
| | - Xu Deng
- School of Public Health and Management, Research Center for Medicine and Social Development, Innovation Center for Social Risk Governance in Health, Chongqing Medical University, Chongqing 400016, China
| | - Yiwen Chen
- School of Public Health and Management, Research Center for Medicine and Social Development, Innovation Center for Social Risk Governance in Health, Chongqing Medical University, Chongqing 400016, China
| | - Wenyan Li
- School of Public Health and Management, Research Center for Medicine and Social Development, Innovation Center for Social Risk Governance in Health, Chongqing Medical University, Chongqing 400016, China
| | - Hong Wang
- School of Public Health and Management, Research Center for Medicine and Social Development, Innovation Center for Social Risk Governance in Health, Chongqing Medical University, Chongqing 400016, China
| | - Jingfu Qiu
- School of Public Health and Management, Research Center for Medicine and Social Development, Innovation Center for Social Risk Governance in Health, Chongqing Medical University, Chongqing 400016, China
| | - Junfeng Zhang
- Nicholas School of the Environment, and Duke Global Health Institute, Duke University, Durham, NC 27708, USA; School of Environmental Sciences and Engineering, Peking University, Beijing, China.; Duke Kunshan University, Kunshan, Jiangsu Province, China
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Pomés A, Mueller GA, Randall TA, Chapman MD, Arruda LK. New Insights into Cockroach Allergens. Curr Allergy Asthma Rep 2017; 17:25. [PMID: 28421512 DOI: 10.1007/s11882-017-0694-1] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
PURPOSE OF REVIEW This review addresses the most recent developments on cockroach allergen research in relation to allergic diseases, especially asthma. RECENT FINDINGS The number of allergens relevant to cockroach allergy has recently expanded considerably up to 12 groups. New X-ray crystal structures of allergens from groups 1, 2, and 5 revealed interesting features with implications for allergen standardization, sensitization, diagnosis, and therapy. Cockroach allergy is strongly associated with asthma particularly among children and young adults living in inner-city environments, posing challenges for disease control. Environmental interventions targeted at reducing cockroach allergen exposure have provided conflicting results. Immunotherapy may be a way to modify the natural history of cockroach allergy and decrease symptoms and asthma severity among sensitized and exposed individuals. The new information on cockroach allergens is important for the assessment of allergen markers of exposure and disease, and for the design of immunotherapy trials.
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Affiliation(s)
- Anna Pomés
- Indoor Biotechnologies, Inc., 700 Harris Street, Charlottesville, VA, 22903, USA.
| | - Geoffrey A Mueller
- Genome Integrity and Structural Biology Laboratory, Intramural Program, National Institute of Environmental Health Sciences, National Institutes of Health, 111 T.W. Alexander Drive, MD-MR01, Research Triangle Park, NC, 27709, USA
| | - Thomas A Randall
- Integrative Bioinformatics, National Institute of Environmental Health Sciences, National Institutes of Health, 111 T.W. Alexander Drive, MD-MR01, Research Triangle Park, NC, 27709, USA
| | - Martin D Chapman
- Indoor Biotechnologies, Inc., 700 Harris Street, Charlottesville, VA, 22903, USA
| | - L Karla Arruda
- Department of Medicine, Ribeirao Preto Medical School, University of Sao Paulo, Av. Bandeirantes 3900, Ribeirao Preto, SP, 14049-900, Brazil
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Jung KH, Lovinsky-Desir S, Yan B, Torrone D, Lawrence J, Jezioro JR, Perzanowski M, Perera FP, Chillrud SN, Miller RL. Effect of personal exposure to black carbon on changes in allergic asthma gene methylation measured 5 days later in urban children: importance of allergic sensitization. Clin Epigenetics 2017; 9:61. [PMID: 28588744 PMCID: PMC5457544 DOI: 10.1186/s13148-017-0361-3] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2017] [Accepted: 05/25/2017] [Indexed: 01/02/2023] Open
Abstract
Background Asthma gene DNA methylation may underlie the effects of air pollution on airway inflammation. However, the temporality and individual susceptibility to environmental epigenetic regulation of asthma has not been fully elucidated. Our objective was to determine the timeline of black carbon (BC) exposure, measured by personal sampling, on DNA methylation of allergic asthma genes 5 days later to capture usual weather variations and differences related to changes in behavior and activities. We also sought to determine how methylation may vary by seroatopy and cockroach sensitization and by elevated fractional exhaled nitric oxide (FeNO). Methods Personal BC levels were measured during two 24-h periods over a 6-day sampling period in 163 New York City children (age 9–14 years), repeated 6 months later. During home visits, buccal cells were collected as noninvasive surrogates for lower airway epithelial cells and FeNO measured as an indicator of airway inflammation. CpG promoter loci of allergic asthma genes (e.g., interleukin 4 (IL4), interferon gamma (IFNγ), inducible nitric oxide synthase (NOS2A)), arginase 2 (ARG2)) were pyrosequenced at the start and end of each sampling period. Results Higher levels of BC were associated with lower methylation of IL4 promoter CpG−48 5 days later. The magnitude of association between BC exposure and demethylation of IL4 CpG−48 and NOS2A CpG+5099 measured 5 days later appeared to be greater among seroatopic children, especially those sensitized to cockroach allergens (RR [95% CI] 0.55 [0.37–0.82] and 0.67 [0.45–0.98] for IL4 CpG−48 and NOS2A CpG+5099, respectively), compared to non-sensitized children (RR [95% CI] 0.87 [0.65–1.17] and 0.95 [0.69–1.33] for IL4 CpG−48 and NOS2A CpG+5099, respectively); however, the difference was not statistically different. In multivariable linear regression models, lower DNA methylation of IL4 CpG−48 and NOS2A CpG+5099 were associated with increased FeNO. Conclusions Our results suggest that exposure to BC may exert asthma proinflammatory gene demethylation 5 days later that in turn may link to airway inflammation. Our results further suggest that seroatopic children, especially those sensitized to cockroach allergens, may be more susceptible to the effect of acute BC exposure on epigenetic changes. Electronic supplementary material The online version of this article (doi:10.1186/s13148-017-0361-3) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Kyung Hwa Jung
- Division of Pulmonary, Allergy, Critical Care Medicine, Department of Medicine, Columbia University College of Physicians and Surgeons, PH8E-101, 630 W. 168 St., New York, NY 10032 USA
| | - Stephanie Lovinsky-Desir
- Division of Pediatric Pulmonary, Department of Pediatrics, College of Physicians and Surgeons, Columbia University, 630 W. 168 St., New York, NY 10032 USA
| | - Beizhan Yan
- Lamont-Doherty Earth Observatory, Columbia University, 61 Rt, 9 W Palisades, New York, 10964 USA
| | - David Torrone
- Division of Pulmonary, Allergy, Critical Care Medicine, Department of Medicine, Columbia University College of Physicians and Surgeons, PH8E-101, 630 W. 168 St., New York, NY 10032 USA
| | - Jennifer Lawrence
- Division of Pulmonary, Allergy, Critical Care Medicine, Department of Medicine, Columbia University College of Physicians and Surgeons, PH8E-101, 630 W. 168 St., New York, NY 10032 USA
| | - Jacqueline R Jezioro
- Division of Pulmonary, Allergy, Critical Care Medicine, Department of Medicine, Columbia University College of Physicians and Surgeons, PH8E-101, 630 W. 168 St., New York, NY 10032 USA
| | - Matthew Perzanowski
- Mailman School of Public Health, Department of Environmental Health Sciences, Columbia University, 722 W. 168 St., New York, NY 10032 USA
| | - Frederica P Perera
- Mailman School of Public Health, Department of Environmental Health Sciences, Columbia University, 722 W. 168 St., New York, NY 10032 USA
| | - Steven N Chillrud
- Lamont-Doherty Earth Observatory, Columbia University, 61 Rt, 9 W Palisades, New York, 10964 USA
| | - Rachel L Miller
- Division of Pulmonary, Allergy, Critical Care Medicine, Department of Medicine, Columbia University College of Physicians and Surgeons, PH8E-101, 630 W. 168 St., New York, NY 10032 USA.,Mailman School of Public Health, Department of Environmental Health Sciences, Columbia University, 722 W. 168 St., New York, NY 10032 USA.,Division of Pediatric Allergy, Immunology and Rheumatology, Department of Pediatrics, College of Physicians and Surgeons, Columbia University, PH8E-101, 630 W. 168 St., New York, NY 10032 USA
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Lovinsky-Desir S, Jung KH, Rundle AG, Hoepner LA, Bautista JB, Perera FP, Chillrud SN, Perzanowski MS, Miller RL. Physical activity, black carbon exposure and airway inflammation in an urban adolescent cohort. ENVIRONMENTAL RESEARCH 2016; 151:756-762. [PMID: 27694044 PMCID: PMC5081133 DOI: 10.1016/j.envres.2016.09.005] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/07/2016] [Revised: 09/07/2016] [Accepted: 09/08/2016] [Indexed: 05/20/2023]
Abstract
OBJECTIVE Regular physical activity can improve cardiopulmonary health; however, increased respiratory rates and tidal volumes during activity may increase the effective internal dose of air pollution exposure. Our objective was to investigate the impact of black carbon (BC) measured by personal sampler on the relationship between physical activity and fractional exhaled nitric oxide (FeNO), a marker of airway inflammation. We hypothesized that higher personal BC would attenuate the protective effect of physical activity on airway inflammation. METHODS We performed a cross-sectional study nested in a birth cohort of African American and Dominican children living in the Bronx and Northern Manhattan, New York City. Children were recruited based on age (target 9-14 year olds) and presence (n=70) or absence (n=59) of current asthma. Children wore wrist mounted accelerometers for 6 days and were classified as 'active' if they had ≥60min of moderate-to-vigorous activity (MVA) each day and 'non-active' if they had <60min of MVA on any given day, based on CDC guidelines. Personal BC measured using a MicroAeth, was assessed during two 24-h periods, at the beginning and end of physical activity assessment. High BC was defined as the upper tertile of BC measured with personal sampler. FeNO measurements were sampled at the beginning and end of the of physical activity assessment. RESULTS In multivariable linear regression models, 'active' children had 25% higher personal BC concentrations (p=0.02) and 20% lower FeNO (p=0.04) compared to 'non-active' children. Among children with high personal BC (n=33), there was no relationship between activity and FeNO (p=1.00). The significant protective relationship between activity and airway inflammation was largely driven by children with lower personal BC (n=96, p=0.04). CONCLUSIONS Children that live in an urban environment and are physically active on a daily basis have higher personal exposure to BC. High BC offsets the protective relationship between physical activity and airway inflammation.
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Affiliation(s)
- Stephanie Lovinsky-Desir
- Division of Pediatric Pulmonology, Department of Pediatrics, College of Physicians and Surgeons, Columbia University, 3959 Broadway CHC-745, New York, NY 10032, United States.
| | - Kyung Hwa Jung
- Division of Pulmonary, Allergy and Critical Care of Medicine, Department of Medicine, College of Physicians and Surgeons, Columbia University, PH8E-101, 630 W. 168S., New York, NY 10032, United States
| | - Andrew G Rundle
- Department of Epidemiology, Mailman School of Public Health, Columbia University, 722 W. 168S., New York, NY 10032, United States
| | - Lori A Hoepner
- Department of Environmental Health Sciences, Mailman School of Public Health, Columbia University, 722 W. 168S., New York, NY 10032, United States; Department of Environmental and Occupational Health Sciences, State University of New York, Downstate School of Public Health, Box 43, 450 Clarkson Avenue, Brooklyn, NY 11203, United States
| | - Joshua B Bautista
- Division of Pulmonary, Allergy and Critical Care of Medicine, Department of Medicine, College of Physicians and Surgeons, Columbia University, PH8E-101, 630 W. 168S., New York, NY 10032, United States
| | - Frederica P Perera
- Department of Environmental Health Sciences, Mailman School of Public Health, Columbia University, 722 W. 168S., New York, NY 10032, United States
| | - Steven N Chillrud
- Lamont-Doherty Earth Observatory, Columbia University, 61 Rt, 9W Palisades, New York 10964, United States
| | - Matthew S Perzanowski
- Department of Environmental Health Sciences, Mailman School of Public Health, Columbia University, 722 W. 168S., New York, NY 10032, United States
| | - Rachel L Miller
- Division of Pulmonary, Allergy and Critical Care of Medicine, Department of Medicine, College of Physicians and Surgeons, Columbia University, PH8E-101, 630 W. 168S., New York, NY 10032, United States; Department of Environmental Health Sciences, Mailman School of Public Health, Columbia University, 722 W. 168S., New York, NY 10032, United States; Division of Pediatric Allergy, Immunology, and Rheumatology, Department of Pediatrics, College of Physicians and Surgeons, Columbia University, PH8E-101, 630 W. 168 St., New York, NY 10032, United States
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Do DC, Zhao Y, Gao P. Cockroach allergen exposure and risk of asthma. Allergy 2016; 71:463-74. [PMID: 26706467 DOI: 10.1111/all.12827] [Citation(s) in RCA: 82] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/16/2015] [Indexed: 12/15/2022]
Abstract
Cockroach sensitization is an important risk factor for the development of asthma. However, its underlying immune mechanisms and the genetic etiology for differences in allergic responses remain unclear. Cockroach allergens identification and their expression as biologically active recombinant proteins have provided a basis for studying the mechanisms regarding cockroach allergen-induced allergic sensitization and asthma. Glycans in allergens may play a crucial role in the immunogenicity of allergic diseases. Protease-activated receptor (PAR)-2, Toll-like receptor (TLR), and C-type lectin receptors have been suggested to be important for the penetration of cockroach allergens through epithelial cells to mediate allergen uptake, dendritic cell maturation, antigen-presenting cell (APC) function in T-cell polarization, and cytokine production. Environmental pollutants, which often coexist with the allergen, could synergistically elicit allergic inflammation, and aryl hydrocarbon receptor (AhR) activation and signaling may serve as a link between these two elements. Genetic factors may also play an important role in conferring the susceptibility to cockroach sensitization. Several genes have been associated with cockroach sensitization and asthma-related phenotypes. In this review, we will discuss the epidemiological evidence for cockroach allergen-induced asthma, cockroach allergens, the mechanisms regarding cockroach allergen-induced innate immune responses, and the genetic basis for cockroach sensitization.
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Affiliation(s)
- D. C. Do
- Division Allergy and Clinical Immunology; Johns Hopkins University School of Medicine; Baltimore MD USA
| | - Y. Zhao
- Division Allergy and Clinical Immunology; Johns Hopkins University School of Medicine; Baltimore MD USA
| | - P. Gao
- Division Allergy and Clinical Immunology; Johns Hopkins University School of Medicine; Baltimore MD USA
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Meldrum K, Gant TW, Macchiarulo S, Leonard MO. Bronchial epithelial innate and adaptive immunity signals are induced by polycyclic aromatic hydrocarbons. Toxicol Res (Camb) 2016; 5:816-827. [PMID: 30090392 DOI: 10.1039/c5tx00389j] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2015] [Accepted: 02/06/2016] [Indexed: 12/13/2022] Open
Abstract
Polycyclic aromatic hydrocarbons including Benzo[a]pyrene have been recognised as important pollutant chemicals with the potential to influence the respiratory system in disease. Airway epithelial cells are an integral component of how immune responses are directed as a consequence of exposure to inhaled material. It was aim of this study to examine how such cells respond to PAH exposure and to characterise the immune response. Human primary bronchial epithelial cells (HPBECs) were exposed to Benzo[a]pyrene, Benzo[e]pyrene, Fluoranthene and Benzo[b]fluoranthene for 24 h and a repeat exposure up to 7 days, and examined for global gene expression using RNA-Seq. In addition to increased expression of CYP1A1 and other AHR dependent changes, we identified significant increases in innate and adaptive immune signals including, IL-1A, IL-19, SERPINB2, STAT6, HLA-DMB and HLA-DRA. We also observed increased expression of HMOX1 and NQO1, genes involved in the response to oxidative stress. Immune system related gene expression was differentially induced by each compound with Benzo[a]pyrene and Benzo[b]fluoranthene demonstrating the most potent responses. Differential induction paralleled the level to which AHR dependent gene expression and oxidative stress markers were induced. We also observed similar levels of gene expression when cells were exposed to organic extracts from diesel exhaust particles. In conclusion, hazard characterisation of responses to PAH exposure in HPBECs highlights specific responses of both innate and adaptive immunity.
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Affiliation(s)
- Kirsty Meldrum
- Centre for Radiation , Chemical and Environmental Hazards , Public Health England , Chilton , Didcot OX11 0RQ , UK . ; Tel: +44 (0)12358 25164
| | - Timothy W Gant
- Centre for Radiation , Chemical and Environmental Hazards , Public Health England , Chilton , Didcot OX11 0RQ , UK . ; Tel: +44 (0)12358 25164
| | - Sameirah Macchiarulo
- Centre for Radiation , Chemical and Environmental Hazards , Public Health England , Chilton , Didcot OX11 0RQ , UK . ; Tel: +44 (0)12358 25164
| | - Martin O Leonard
- Centre for Radiation , Chemical and Environmental Hazards , Public Health England , Chilton , Didcot OX11 0RQ , UK . ; Tel: +44 (0)12358 25164
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Lankova D, Urbancova K, Sram RJ, Hajslova J, Pulkrabova J. A novel strategy for the determination of polycyclic aromatic hydrocarbon monohydroxylated metabolites in urine using ultra-high-performance liquid chromatography with tandem mass spectrometry. Anal Bioanal Chem 2016; 408:2515-25. [DOI: 10.1007/s00216-016-9350-1] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2015] [Revised: 01/04/2016] [Accepted: 01/20/2016] [Indexed: 12/15/2022]
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Association of polycyclic aromatic hydrocarbons and asthma among children 6-19 years: NHANES 2001-2008 and NHANES 2011-2012. Respir Med 2015; 110:20-7. [PMID: 26626452 DOI: 10.1016/j.rmed.2015.11.003] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/26/2015] [Revised: 10/31/2015] [Accepted: 11/04/2015] [Indexed: 02/07/2023]
Abstract
BACKGROUND Polycyclic aromatic hydrocarbons (PAHs) are a group of chemicals that can induce oxidative stress and related cytotoxicity. Whether environmental exposure of PAHs has effects on asthma in the general population is still unclear. This study investigated the association of urinary PAHs with asthma in U.S. children. METHODS 15 447 children who participated in the US National Health and Nutrition Examination Survey 2001-2008 and 2011-2012 were studied. Ten urinary PAHs were analyzed for their association with asthma or asthma related symptoms. Multivariate logistic regression was applied to assess associations between urinary PAHs and asthma adjusted for age, gender, ethnicity, body mass index and the poverty income ratio. RESULTS When stratified by age and sex, we found a remarkable association between urinary 2-phenanthrene and diagnosed asthma in boys (OR: 2.353, 95% CI: 1.156-4.792; P = 0.021) aged 13-19 years old. Positive association was observed between ever wheeze and 4-phenanthrene among girls aged 13-19 years (OR: 4.086, 95% CI: 1.326-12.584, P = 0.043). Moreover, an overall positive association between 1-pyrene and diagnosed asthma was observed. However, no association existed between levels of 1-napthol, 2-napthol, 3-fluorene, 2-fluorene, 3-phenanthrene, 1-phenanthrene or 9-fluorene with asthma or asthma symptom in this population. CONCLUSIONS This data provide epidemiological evidences that urinary PAHs are positively associated with asthma in children aged 6-19 years. However, the underlying mechanisms still need further exploration.
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