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Dui W, Smith MP, Bartock SH. Development, validation, and clinical assessment of a liquid chromatography-tandem mass spectrometry serum assay for per- and polyfluoroalkyl substances (PFAS) recommended by the National Academies of Science, Engineering, and Medicine (NASEM). Anal Bioanal Chem 2024:10.1007/s00216-024-05519-y. [PMID: 39269501 DOI: 10.1007/s00216-024-05519-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2024] [Revised: 08/09/2024] [Accepted: 08/16/2024] [Indexed: 09/15/2024]
Abstract
Per- and polyfluoroalkyl substances (PFAS) are widely used in industry, residential, and consumer products. Studies have shown associations between high PFAS exposure and adverse health effects. In 2022, the National Academies of Science, Engineering, and Medicine (NASEM) published Guidance on PFAS Exposure, Testing, and Clinical Follow-up providing laboratory and clinical direction. The Guidance suggests nine PFAS should be measured in serum or plasma specimens and summed to provide a total PFAS concentration using a NASEM-recommended method. Follow-up clinical recommendations are based on the calculated PFAS NASEM summation. We developed and validated a liquid chromatography-tandem mass spectrometry (LC-MS/MS) method in accordance with NASEM recommendations but distinguished by the ability to separate closely related structural isomers. As part of our validation, PFAS prevalence was evaluated in a population survey comprised of clinical donor and remnant specimens (n = 1023 in total). In this study, 82.2% of the specimens had PFAS NASEM summations of 2 to < 20 ng/mL and 2.5% had a summation ≥ 20 ng/mL. The median PFAS NASEM summation was 4.65 ng/mL in this study, lower than the 7.74 ng/mL median observed in the 2017-2020 Centers for Disease Control and Prevention, National Health and Nutrition Examination Survey (n = 3072). This lower median PFAS NASEM summation may reflect a decline in PFAS population levels over time or sample population exposure differences.
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Affiliation(s)
- Wen Dui
- Quest Diagnostics, 14225 Newbrook Drive, Chantilly, VA, 20151, USA
| | - Michael P Smith
- Quest Diagnostics, 14225 Newbrook Drive, Chantilly, VA, 20151, USA
| | - Sarah H Bartock
- Quest Diagnostics, 14225 Newbrook Drive, Chantilly, VA, 20151, USA.
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Li L, Li K, Zhou X, Knowles RL. Maximising the potential of Chinese birth cohort studies: a systematic review of mother-baby cohorts in mainland China. Public Health 2024; 227:119-130. [PMID: 38168592 DOI: 10.1016/j.puhe.2023.11.035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Revised: 11/21/2023] [Accepted: 11/23/2023] [Indexed: 01/05/2024]
Abstract
OBJECTIVES There is now a growing interest in early-life influences on adult diseases in China. A number of birth cohorts have been established. This systematic review provided a better understanding of the development of mother-baby cohorts in China. STUDY DESIGN Systematic review. METHODS We conducted a systematic review for research or profile papers in English/Chinese that reported data from mother-baby cohorts in mainland China, with ≥1y follow-up after birth. We identified 315 papers, corresponding to 31 cohorts from 19 provinces/megacities. RESULTS All cohorts started in 1999-2017 (21 after 2010) and were set up with broad objectives or specific scientific focus. The baseline sample size varied, from <500 to >300,000 mothers. A majority of cohorts were initiated during pregnancy and followed children to <10y, only six to adolescence and none into adulthood. These cohorts mostly collected samples from mothers and babies, in addition to using interviews/questionnaires to collect information about pregnancy, birth and child health. Most cohorts were recruited from a single province/city. The large western region was understudied. CONCLUSIONS Mother-baby cohorts have developed rapidly in China, but usually with a short follow-up duration. Extending the follow-up of children and developing cross-cohort collaboration will increase the diversity, size and coverage of the sample, allow studying early influences on life-course health and identify targets for early intervention in the Chinese population.
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Affiliation(s)
- L Li
- Population, Policy and Practice Research and Teaching Department, University College London Great Ormond Street Institute of Child Health, UK.
| | - K Li
- UCL Institute of Epidemiology and Health Care, UK.
| | - X Zhou
- Institute of Social Medicine, Zhejiang University School of Medicine, China; Second Affiliated Hospital, Zhejiang University School of Medicine, China.
| | - R L Knowles
- Population, Policy and Practice Research and Teaching Department, University College London Great Ormond Street Institute of Child Health, UK.
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Ziou M, Gao CX, Wheeler AJ, Zosky GR, Stephens N, Knibbs LD, Williamson GJ, Dalton MF, Dharmage SC, Johnston FH. Exposure to air pollution concentrations of various intensities in early life and allergic sensitisation later in childhood. BMC Pulm Med 2023; 23:516. [PMID: 38129862 PMCID: PMC10740230 DOI: 10.1186/s12890-023-02815-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2023] [Accepted: 12/13/2023] [Indexed: 12/23/2023] Open
Abstract
BACKGROUND Evidence on the relationship between air pollution and allergic sensitisation in childhood is inconsistent, and this relationship has not been investigated in the context of smoke events that are predicted to increase with climate change. Thus, we aimed to evaluate associations between exposure in two early life periods to severe levels of particulate matter with an aerodynamic diameter < 2.5 μm (PM2.5) from a mine fire, background PM2.5, and allergic sensitisation later in childhood. METHODS We measured specific immunoglobulin E (IgE) levels for seven common aeroallergens as well as total IgE levels in a cohort of children who had been exposed to the Hazelwood coal mine fire, either in utero or during their first two years of life, in a regional area of Australia where ambient levels of PM2.5 are generally low. We estimated personal exposure to fire-specific emissions of PM2.5 based on a high-resolution meteorological and pollutant dispersion model and detailed reported movements of pregnant mothers and young children during the fire. We also estimated the usual background exposure to PM2.5 at the residential address at birth using a national satellite-based land-use regression model. Associations between both sources of PM2.5 and sensitisation to dust, cat, fungi, and grass seven years after the fire were estimated with logistic regression, while associations with total IgE levels were estimated with linear regression. RESULTS No association was found between the levels of exposure at either developmental stage to fire-related PM2.5 and allergic sensitisation seven years after the event. However, levels of background exposure were positively associated with sensitisation to dust (OR = 1.90, 95%CI = 1.12,3.21 per 1 μg/m3). CONCLUSIONS Chronic but low exposure to PM2.5 in early life could be more strongly associated with allergic sensitisation in childhood than time-limited high exposure levels, such as the ones experienced during landscape fires.
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Affiliation(s)
- Myriam Ziou
- Menzies Institute for Medical Research, University of Tasmania, 17 Liverpool Street, Hobart, Tasmania, 7000, Australia.
| | - Caroline X Gao
- School of Public Health and Preventive Medicine, Monash University, Melbourne, Victoria, 3004, Australia
- Centre for Youth Mental Health, The University of Melbourne, Parkville, Victoria, 3052, Australia
| | - Amanda J Wheeler
- Menzies Institute for Medical Research, University of Tasmania, 17 Liverpool Street, Hobart, Tasmania, 7000, Australia
- Commonwealth Scientific and Industrial Research Organisation (CSIRO) Environment, Aspendale, Victoria, 3195, Australia
| | - Graeme R Zosky
- Menzies Institute for Medical Research, University of Tasmania, 17 Liverpool Street, Hobart, Tasmania, 7000, Australia
- Tasmanian School of Medicine, University of Tasmania, Hobart, Tasmania, 7000, Australia
| | - Nicola Stephens
- Tasmanian School of Medicine, University of Tasmania, Hobart, Tasmania, 7000, Australia
| | - Luke D Knibbs
- School of Public Health, The University of Sydney, Camperdown, NSW, 2006, Australia
- Public Health Research Analytics and Methods for Evidence, Public Health Unit, Sydney Local Health District, Camperdown, NSW, 2050, Australia
| | - Grant J Williamson
- School of Natural Sciences, University of Tasmania, Sandy Bay, Tasmania, 7005, Australia
| | - Marita F Dalton
- Menzies Institute for Medical Research, University of Tasmania, 17 Liverpool Street, Hobart, Tasmania, 7000, Australia
| | - Shyamali C Dharmage
- Allergy and Lung Health Unit, School of Population and Global Health, The University of Melbourne, Carlton, Victoria, 3052, Australia
| | - Fay H Johnston
- Menzies Institute for Medical Research, University of Tasmania, 17 Liverpool Street, Hobart, Tasmania, 7000, Australia
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Wang YF, Xie B, Zou YX. Association between PFAS congeners exposure and asthma among US children in a nationally representative sample. ENVIRONMENTAL GEOCHEMISTRY AND HEALTH 2023; 45:5981-5990. [PMID: 37195568 DOI: 10.1007/s10653-023-01614-8] [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: 03/27/2023] [Accepted: 05/09/2023] [Indexed: 05/18/2023]
Abstract
Over the past few decades, contamination with perfluorinated and polyfluoroalkyl substances (PFAS) has gradually become a worldwide problem. Now that common PFAS such as perfluorooctanoic acid (PFOA) and perfluorooctane sulfonic acid (PFOS) are being phased out and replaced, people may be exposed to other PFAS congeners, and their potential hazards should be fully studied. We assessed the association of serum PFAS levels (as biomarkers of exposure) with asthma, including 2-(N-methyl-perfluorooctane sulfonamido) acetic acid (Me-PFOSA-AcOH), pefluorodecanoic acid (PFDA), and perfluoroundecanoic acid (PFUnDA), using data from participants aged 3-11 from the 2013-2014 National Health and Nutrition Examination Surveys (n = 525), where PFAS was modeled as a binary variable.Me-PFOSA-AcOH (1.36; 95% CI 0.77, 2.38), PFDA (1.33; 95% CI 0.76, 2.33), and PFUnDA (1.89; 95% CI 0.83, 4.35) were nonsignificantly associated with increased odds of asthma. Age, sex, and race/ethnicity modified associations between serum PFUnDA, not other serum PFAS congeners exposure, and odds of asthma. Specifically, for male participants, the OR = 3.06 and 95% CI 1.23-7.62 for serum PFUnDA exposure; for participants aged 3-7 years old, the OR = 3.55 and 95% CI 1.04-12.10 for serum PFUnDA exposure; for non-Hispanic White participants, the OR = 3.44 and 95% CI 1.14-10.36 for serum PFUnDA exposure, all of which exhibited a significantly positive relationship. This cross-sectional study provides some evidence for associations between exposure to PFAS congeners and asthma in children. We believe this relationship deserves further exploration. More large-scale epidemiologic studies are needed to evaluate the association of serum PFAS congeners, especially for PFUnDA exposure, with asthma among children.
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Affiliation(s)
- Yi-Fan Wang
- Clinical School of Paediatrics, Tianjin Medical University, Tianjin, China
- Department of Pulmonology, Tianjin Children's Hospital (Children's Hospital of Tianjin University), Machang compus, 225 Machang Road, Hexi District, Tianjin, 300074, China
| | - Bin Xie
- Department of Biomedical Engineering, Tianjin Medical University, Tianjin, China
| | - Ying-Xue Zou
- Department of Pulmonology, Tianjin Children's Hospital (Children's Hospital of Tianjin University), Machang compus, 225 Machang Road, Hexi District, Tianjin, 300074, China.
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Pan Z, Guo Y, Zhou Q, Wang Q, Pan S, Xu S, Li L. Perfluoroalkyl substance exposure is associated with asthma and innate immune cell count in US adolescents stratified by sex. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:52535-52548. [PMID: 36840869 DOI: 10.1007/s11356-023-26065-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Accepted: 02/17/2023] [Indexed: 06/18/2023]
Abstract
Exposure to perfluoroalkyl substances (PFAS) may be harmful to humans; however, previous studies have been inconsistent regarding the potential for PFAS-induced immunosuppresion. This study explored the relationship between PFAS exposure and risks of asthma, wheezing, and immunosuppression in 12-19 year-olds using the National Health and Nutrition Examination Survey (NHANES) data. Logistic regression models were used to reveal associations between serum PFAS levels and risks of asthma, wheezing, asthma attack, and emergency department visits. Pearson's correlation was used to determine the relationship between serum PFAS levels and leukocyte count. Data were also stratified by sex. We found that medium-low levels of serum perfluorooctane sulfonate (PFOS) (6.90-12.40 ng/mL) and serum perfluorooctanoic acid (PFOA) (2.43-3.60 ng/mL) were negatively related, respectively, to current asthma and wheezing in boys, and to wheezing in girls. Meanwhile, boys with medium-high levels (1.50-3.00 ng/mL) of serum perfluorohexanesulfonate (PFHxS) had a high risk of wheezing. Among asthmatic participants, both medium-high levels (3.75-5.07 ng/mL) of serum PFOA and high levels (> 3.92 ng/mL) of PFHxS correlated with asthma attacks in boys; likewise, medium-low levels (0.70-0.99 ng/mL) of serum PFNA correlated with asthma attacks in girls. Also, PFOA and PFNA levels were weakly positively correlated with basophil count, whereas PFOS levels were weakly negatively correlated with eosinophils in asthmatic boys, indicating that basophils may be important in the immune response to PFAS exposure among asthmatics.
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Affiliation(s)
- Zhenzhen Pan
- Department of Pediatric Respiratory, Wuxi Children's Hospital affiliated to Jiangnan University, No. 299-1 at Qingyang Road, Liangxi District, Wuxi, 214023, Jiangsu Province, China
| | - Yun Guo
- Department of Pediatric Respiratory, Wuxi Children's Hospital affiliated to Jiangnan University, No. 299-1 at Qingyang Road, Liangxi District, Wuxi, 214023, Jiangsu Province, China
| | - Qin Zhou
- Department of Pediatric Respiratory, Wuxi Children's Hospital affiliated to Jiangnan University, No. 299-1 at Qingyang Road, Liangxi District, Wuxi, 214023, Jiangsu Province, China
| | - Qian Wang
- Department of Pediatric Respiratory, Wuxi Children's Hospital affiliated to Jiangnan University, No. 299-1 at Qingyang Road, Liangxi District, Wuxi, 214023, Jiangsu Province, China
| | - Shanshan Pan
- Department of Pediatric Respiratory, Wuxi Children's Hospital affiliated to Jiangnan University, No. 299-1 at Qingyang Road, Liangxi District, Wuxi, 214023, Jiangsu Province, China
| | - Shiyao Xu
- Department of Pediatric Respiratory, Wuxi Children's Hospital affiliated to Jiangnan University, No. 299-1 at Qingyang Road, Liangxi District, Wuxi, 214023, Jiangsu Province, China
| | - Ling Li
- Department of Pediatric Respiratory, Wuxi Children's Hospital affiliated to Jiangnan University, No. 299-1 at Qingyang Road, Liangxi District, Wuxi, 214023, Jiangsu Province, China.
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Herbstman JB, Romano ME, Li X, Jacobson LP, Margolis AE, Hamra GB, Bennett DH, Braun JM, Buckley JP, Colburn T, Deoni S, Hoepner LA, Morello-Frosch R, Riley KW, Sathyanarayana S, Schantz SL, Trasande L, Woodruff TJ, Perera FP, Karagas MR. Characterizing changes in behaviors associated with chemical exposures during the COVID-19 pandemic. PLoS One 2023; 18:e0277679. [PMID: 36638141 PMCID: PMC9838870 DOI: 10.1371/journal.pone.0277679] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Accepted: 11/01/2022] [Indexed: 01/14/2023] Open
Abstract
The COVID-19 pandemic-and its associated restrictions-have changed many behaviors that can influence environmental exposures including chemicals found in commercial products, packaging and those resulting from pollution. The pandemic also constitutes a stressful life event, leading to symptoms of acute traumatic stress. Data indicate that the combination of environmental exposure and psychological stress jointly contribute to adverse child health outcomes. Within the Environmental influences on Child Health Outcomes (ECHO)-wide Cohort, a national consortium initiated to understand the effects of environmental exposures on child health and development, our objective was to assess whether there were pandemic-related changes in behavior that may be associated with environmental exposures. A total of 1535 participants from nine cohorts completed a survey via RedCap from December 2020 through May 2021. The questionnaire identified behavioral changes associated with the COVID-19 pandemic in expected directions, providing evidence of construct validity. Behavior changes reported by at least a quarter of the respondents include eating less fast food and using fewer ultra-processed foods, hair products, and cosmetics. At least a quarter of respondents reported eating more home cooked meals and using more antibacterial soaps, liquid soaps, hand sanitizers, antibacterial and bleach cleaners. Most frequent predictors of behavior change included Hispanic ethnicity and older age (35 years and older). Respondents experiencing greater COVID-related stress altered their behaviors more than those not reporting stress. These findings highlight that behavior change associated with the pandemic, and pandemic-related psychological stress often co-occur. Thus, prevention strategies and campaigns that limit environmental exposures, support stress reduction, and facilitate behavioral change may lead to the largest health benefits in the context of a pandemic. Analyzing biomarker data in these participants will be helpful to determine if behavior changes reported associate with measured changes in exposure.
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Affiliation(s)
- Julie B. Herbstman
- Department of Environmental Health Sciences, Columbia University Mailman School of Public Health, New York, NY, United States of America
| | - Megan E. Romano
- Department of Epidemiology, Dartmouth College Geisel School of Medicine, Hanover, NH, United States of America
| | - Xiuhong Li
- Department of Epidemiology, Johns Hopkins University Bloomberg School of Public Health, Baltimore, MD, United States of America
| | - Lisa P. Jacobson
- Department of Epidemiology, Johns Hopkins University Bloomberg School of Public Health, Baltimore, MD, United States of America
| | - Amy E. Margolis
- Department of Psychiatry, Columbia University Irving Medical Center, New York, NY, United States of America
| | - Ghassan B. Hamra
- Department of Epidemiology, Johns Hopkins University Bloomberg School of Public Health, Baltimore, MD, United States of America
| | - Deborah H. Bennett
- Department of Public Health Sciences, University of California—Davis, Davis, CA, United States of America
| | - Joseph M. Braun
- Department of Epidemiology, Brown University School of Public Health, Providence, RI, United States of America
| | - Jessie P. Buckley
- Department of Environmental Health Sciences, Johns Hopkins University Bloomberg School of Public Health, Baltimore, MD, United States of America
| | - Trina Colburn
- Department of Child Health, Behavior, and Development, Seattle Children’s Hospital, Seattle, WA, United States of America
| | - Sean Deoni
- Department of Pediatrics, Rhode Island Hospital, Providence, RI, United States of America
| | - Lori A. Hoepner
- Department of Environmental Health Sciences, Columbia University Mailman School of Public Health and Department of Environmental and Occupational Health Sciences, SUNY Downstate Health Sciences University School of Public Health, New York, NY, United States of America
| | - Rachel Morello-Frosch
- Department of Environmental Health Sciences, University of California—Berkeley, Berkeley, CA, United States of America
| | - Kylie Wheelock Riley
- Department of Environmental Health Sciences, Columbia University Mailman School of Public Health, Health, New York, NY, United States of America
| | - Sheela Sathyanarayana
- Department of Pediatrics, University of Washington and Seattle Children’s Research Institute, Seattle, WA, United States of America
| | - Susan L. Schantz
- Department of Comparative Biosciences, University of Illinois—Urbana-Champaign, Champaign, IL, United States of America
| | - Leonardo Trasande
- Departments of Pediatrics and Population Health, New York University Grossman School of Medicine, New York, NY, United States of America
| | - Tracey J. Woodruff
- Department of Obstetrics and Gynecology, University of California San Francisco School of Medicine, San Francisco, CA, United States of America
| | - Frederica P. Perera
- Department of Environmental Health Sciences, Columbia University Mailman School of Public Health, New York, NY, United States of America
| | - Margaret R. Karagas
- Department of Epidemiology, Dartmouth College Geisel School of Medicine, Hanover, NH, United States of America
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Liang L, Pan Y, Bin L, Liu Y, Huang W, Li R, Lai KP. Immunotoxicity mechanisms of perfluorinated compounds PFOA and PFOS. CHEMOSPHERE 2022; 291:132892. [PMID: 34780734 DOI: 10.1016/j.chemosphere.2021.132892] [Citation(s) in RCA: 57] [Impact Index Per Article: 28.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2021] [Revised: 11/09/2021] [Accepted: 11/11/2021] [Indexed: 05/14/2023]
Abstract
Perfluorinated and polyfluorinated compounds (PFASs) are a class of synthetic chemical substances that are widely used in human production and life, such as fire-fighting foams, textiles and clothing, surfactants, and surface protective agents. Perfluorooctane sulfonic acid (PFOS) and perfluorooctanoic acid (PFOA) are the most abundant and common perfluorinated compounds in biota and humans. Currently, PFOA and PFOS have been listed in the Stockholm Convention on Persistent Organic Pollutants, and their production has been halted in many countries. However, because the high-energy carbon-fluorine bond can make it resistant to hydrolysis, photolysis, microbial degradation, and vertebrate metabolism, PFOA and PFOS show environmental persistence and bioaccumulation and hence, are of great concern to humans and wildlife. PFOA and PFOS have toxic effects on the immune system of the body. This article reviewed the effects of PFOA and PFOS on immune organs such as the spleen, bone marrow, and thymus of mice and zebrafish, and the effects on non-specific immune functions such as the skin barrier, intestinal mucosal barrier, and humoral immunity. We also reviewed the influence of specific immune functions based on cellular immunity, and further summarized the possible immune toxicity mechanisms such as AIM2 inflammasome activation, gene dysregulation, and signal pathway disorders caused by PFOA and PFOS. The aim of this review was to provide a reference for further understanding of the immunotoxicity and the responsible mechanism of PFOA and PFOS.
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Affiliation(s)
- Luyun Liang
- School of Lingui Clinical Medicine, Guilin Medical University, Guilin, PR China; Laboratory of Environmental Pollution and Integrative Omics, Guilin Medical University, Guilin, PR China
| | - Yongling Pan
- School of Lingui Clinical Medicine, Guilin Medical University, Guilin, PR China; Laboratory of Environmental Pollution and Integrative Omics, Guilin Medical University, Guilin, PR China
| | - Lihua Bin
- School of Lingui Clinical Medicine, Guilin Medical University, Guilin, PR China; Laboratory of Environmental Pollution and Integrative Omics, Guilin Medical University, Guilin, PR China
| | - Yu Liu
- School of Lingui Clinical Medicine, Guilin Medical University, Guilin, PR China; Laboratory of Environmental Pollution and Integrative Omics, Guilin Medical University, Guilin, PR China
| | - Wenjun Huang
- Laboratory of Environmental Pollution and Integrative Omics, Guilin Medical University, Guilin, PR China
| | - Rong Li
- Laboratory of Environmental Pollution and Integrative Omics, Guilin Medical University, Guilin, PR China.
| | - Keng Po Lai
- Laboratory of Environmental Pollution and Integrative Omics, Guilin Medical University, Guilin, PR China.
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Luo Y, Deji Z, Huang Z. Exposure to perfluoroalkyl substances and allergic outcomes in children: A systematic review and meta-analysis. ENVIRONMENTAL RESEARCH 2020; 191:110145. [PMID: 32877702 DOI: 10.1016/j.envres.2020.110145] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/22/2020] [Revised: 08/21/2020] [Accepted: 08/24/2020] [Indexed: 05/27/2023]
Abstract
BACKGROUND Perfluoroalkyl substances (PFASs) are persistent organic pollutants and widespread throughout the environment. Although exposure to PFASs may contribute to the development of allergic diseases in children, evidence about this association remains inconclusive. OBJECTIVE To conduct a systematic review and meta-analysis to assess the association between PFASs exposure and allergic diseases in children based on current evidence. METHODS The databases including PubMed, EMBASE, and Web of Science were searched to identify all observational studies that examined the association between PFASs exposure and the risk of childhood allergic diseases. The Newcastle-Ottawa Scale was used to evaluate the quality of case-crossover studies, and a previously validated quality assessment framework was used for observational studies lacking control groups. Random-effects meta-analysis models were applied to pool odds ratio (OR) with 95% confidence intervals (CIs). RESULTS From an initial 94 articles (after duplicate removal), 13 studies through full-text assessment were included for quantitative assessment and descriptive synthesis. They are ten cohort studies, two cross-sectional studies, and one case-control study. The pooled estimates showed that perfluorononanoic acid (PFNA) was associated with eczema (OR = 0.89, 95% CI = 0.80-0.99), perfluorooctanesulfonic acid (PFOS) with atopic dermatitis (OR = 1.26, 95% CI = 1.01-1.58), and perfluorooctanoic acid (PFOA) with allergic rhinitis (OR = 1.33, 95% CI = 1.13-1.56). However, no such significant associations were found for wheeze and asthma. CONCLUSIONS The meta-analysis results suggest that PFASs exposure could potentially be associated with eczema, atopic dermatitis, and allergic rhinitis during childhood, but not with childhood asthma or wheeze. Future studies are needed to verify these findings.
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Affiliation(s)
- Yuehua Luo
- Department of Preventive Medicine, School of Health Sciences, Wuhan University, Wuhan, 430071, PR China
| | - Zhuoma Deji
- Department of Preventive Medicine, School of Health Sciences, Wuhan University, Wuhan, 430071, PR China
| | - Zhenzhen Huang
- Department of Preventive Medicine, School of Health Sciences, Wuhan University, Wuhan, 430071, PR China.
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Jackson-Browne MS, Eliot M, Patti M, Spanier AJ, Braun JM. PFAS (per- and polyfluoroalkyl substances) and asthma in young children: NHANES 2013-2014. Int J Hyg Environ Health 2020; 229:113565. [PMID: 32485600 DOI: 10.1016/j.ijheh.2020.113565] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2019] [Revised: 03/11/2020] [Accepted: 05/15/2020] [Indexed: 02/06/2023]
Abstract
Per- and polyfluoroalkyl substances (PFAS) are a class of persistent chemicals used as industrial surfactants, fire-fighting foams, and textile treatments. Early childhood exposure to perfluorooctanoic acid (PFOA), perfluorooctane sulfonic acid (PFOS), perfluorononanoic acid (PFNA), and perfluorohexane sulfonic acid (PFHxS) may affect the immune system to increase the risk of allergic and respiratory diseases. However, there are substantial gaps in our knowledge about the relationship between PFAS and immune-mediated outcomes such as asthma in children. Thus, we examined the cross-sectional associations of serum PFOA, PFOS, PFNA, and PFHxS concentrations with childhood asthma. We used data from children aged 3-11 years who participated in the National Health and Nutrition Examination Survey (2013-2014). Serum PFAS concentrations were measured in serum using analytical chemistry methods. Asthma was assessed by parent-reported, doctor-diagnosed, asthma using a standardized questionnaire. Controlling for covariates, we estimated odds ratios for asthma per standard deviation increase in ln-transformed serum PFAS concentrations (n = 607). We also examined effect measure modification by child age, sex, and race/ethnicity. PFOA (1.1; 95% CI: 0.8, 1.4), PFOS (1.2; 95% CI: 0.8, 1.7), PFNA (1.1; 95% CI: 0.8, 1.6), and PFHxS (1.1; 95% CI: 0.9, 1.6) were weakly associated with an increased odds of asthma. Age modified associations between serum PFOS, but not other serum PFAS concentrations, and odds of asthma (age x PFOS interaction term p-value = 0.03). Sex and race/ethnicity did not modify these associations. We observed some evidence that serum PFAS concentrations are weakly associated with increased asthma prevalence in US children.
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Affiliation(s)
| | - Melissa Eliot
- Department of Epidemiology, Brown University, Providence, RI, United States
| | - Marisa Patti
- Department of Epidemiology, Brown University, Providence, RI, United States
| | - Adam J Spanier
- Department of Pediatrics, Division of General Pediatrics, University of Maryland School of Medicine, Baltimore, MD, United States
| | - Joseph M Braun
- Department of Epidemiology, Brown University, Providence, RI, United States
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