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Gao X, Yan D, Li G, Wei Y, He H, Zhai J. Polychlorinated biphenyls and risk of metabolic syndrome and comparison with the risk of diabetes: A systematic review and meta-analysis. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 900:165773. [PMID: 37506918 DOI: 10.1016/j.scitotenv.2023.165773] [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: 02/05/2023] [Revised: 05/07/2023] [Accepted: 07/23/2023] [Indexed: 07/30/2023]
Abstract
With the increasing incidence of metabolic syndrome (MetS) worldwide and no consistent results on PCBs and MetS. A meta-analysis to explore their relationship was conducted. Given the high correlation and overlap of MetS with diabetes, analysis of diabetes risk, was used as a supplement to compare with MetS. Seven studies included MetS, 15 studies for diabetes, and one study included both outcomes. It was found that PCBs may not be a risk factor for MetS, but their high heterogeneity indicates that they are under-represented. In addition, our results showed that total PCBs might be a protective factor against diabetes. In the whole blood subgroup, which can reflect the accumulation of more than one body load, heterogeneity was reduced, and its OR value suggested that PCBs increased the risk of MetS in the whole blood biomaterial. DL-PCBs were positively associated with MetS and diabetes, while NDL-PCBs were negatively associated with diabetes. In the subgroup analysis of PCBs homologs, DL-PCB-126 and DL-PCB-118 were risk factors for MetS and diabetes, respectively. In addition, PCB-153 and 180 showed a dose-response relationship between them and diabetes mellitus, respectively. The results of total analysis of MetS and diabetes mellitus and subgroup analysis of PCBs were mixed, and this reason might be attributed to the different mechanisms of action and effect sizes of different PCBs, so based on subgroup results and in vivo and in vitro experiments, we considered PCBs to be a risk factor for MetS and diabetes. Due to various reasons, there are still many shortcomings in the evaluation of PCBs impact on human health, and more high-quality research are needed to further explore the role of PCBs of different species and congeners in MetS and diabetes.
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Affiliation(s)
- Xin Gao
- Department of Occupational and Environmental Health, School of Public Health, Anhui Medical University, Meishan Rd 81, Hefei, China
| | - Di Yan
- Department of Public Affairs Administration, School of Health Management, Anhui Medical University, Meishan Rd 81, Heifei, China
| | - Guangying Li
- Department of Public Affairs Administration, School of Health Management, Anhui Medical University, Meishan Rd 81, Heifei, China
| | - Yu Wei
- Department of Occupational and Environmental Health, School of Public Health, Anhui Medical University, Meishan Rd 81, Hefei, China
| | - Huan He
- Department of Occupational and Environmental Health, School of Public Health, Anhui Medical University, Meishan Rd 81, Hefei, China
| | - Jinxia Zhai
- Department of Occupational and Environmental Health, School of Public Health, Anhui Medical University, Meishan Rd 81, Hefei, China.
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2
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Keil-Stietz K, Lein PJ. Gene×environment interactions in autism spectrum disorders. Curr Top Dev Biol 2022; 152:221-284. [PMID: 36707213 PMCID: PMC10496028 DOI: 10.1016/bs.ctdb.2022.11.001] [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] [Indexed: 12/24/2022]
Abstract
There is credible evidence that environmental factors influence individual risk and/or severity of autism spectrum disorders (hereafter referred to as autism). While it is likely that environmental chemicals contribute to the etiology of autism via multiple mechanisms, identifying specific environmental factors that confer risk for autism and understanding how they contribute to the etiology of autism has been challenging, in part because the influence of environmental chemicals likely varies depending on the genetic substrate of the exposed individual. Current research efforts are focused on elucidating the mechanisms by which environmental chemicals interact with autism genetic susceptibilities to adversely impact neurodevelopment. The goal is to not only generate insights regarding the pathophysiology of autism, but also inform the development of screening platforms to identify specific environmental factors and gene×environment (G×E) interactions that modify autism risk. Data from such studies are needed to support development of intervention strategies for mitigating the burden of this neurodevelopmental condition on individuals, their families and society. In this review, we discuss environmental chemicals identified as putative autism risk factors and proposed mechanisms by which G×E interactions influence autism risk and/or severity using polychlorinated biphenyls (PCBs) as an example.
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Affiliation(s)
- Kimberly Keil-Stietz
- Department of Comparative Biosciences, University of Wisconsin-Madison, School of Veterinary Medicine, Madison, WI, United States
| | - Pamela J Lein
- Department of Molecular Biosciences, University of California, Davis, School of Veterinary Medicine, Davis, CA, United States.
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3
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Xu LL, Zhang QY, Chen YK, Chen LJ, Zhang KK, Wang Q, Xie XL. Gestational PCB52 exposure induces hepatotoxicity and intestinal injury by activating inflammation in dam and offspring mice: A maternal and progeny study. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2022; 313:120186. [PMID: 36115491 DOI: 10.1016/j.envpol.2022.120186] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2022] [Revised: 09/01/2022] [Accepted: 09/11/2022] [Indexed: 06/15/2023]
Abstract
Although Polychlorinated biphenyl (PCB) levels are decreased in the environment, the adverse effects of gestational exposure on the mother and offspring cannot be ignored due to the vulnerability of the fetus. In the present study, pregnant Balb/c mice were administered PCB52 (1 mg/kg BW/day) or corn oil vehicle by gavage until parturition. In the dams, PCB52 caused histopathological changes in the liver, higher serum levels of aminotransferase and alanine aminotransferase, and activated apoptosis and autophagy, suggesting hepatotoxicity. Overexpressed indicators of TLR4 pathway were observed in the liver of PCB52-exposed dams, indicated hepatic inflammation. Moreover, PCB52 exposure weakened the intestinal barrier and triggered inflammatory response, which might contribute to the hepatic inflammation by gut-liver axis. In the pups, prenatal PCB52 exposure affected the sex ratio at birth and reduced birth length and weights. Similar to the dams, prenatal PCB52 exposure induced hepatotoxicity in the pups without gender difference. Consistent with the alteration of gut microbiota, intestinal inflammation was confirmed, accompanying the disruption in the intestinal barrier and the activation of apoptosis and autophagy in the PCB52-exposed pups. Intestinal injury might be responsible for hepatotoxicity at least in part. Taken together, these findings suggested that gestational PCB52 exposure induced hepatic and intestinal injury in both maternal and offspring mice by arousing inflammation.
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Affiliation(s)
- Ling-Ling Xu
- Department of Toxicology, School of Public Health, Southern Medical University (Guangdong Provincial Key Laboratory of Tropical Disease Research), No. 1838 North Guangzhou Road, Guangzhou, 510515, China
| | - Qin-Yao Zhang
- Department of Toxicology, School of Public Health, Southern Medical University (Guangdong Provincial Key Laboratory of Tropical Disease Research), No. 1838 North Guangzhou Road, Guangzhou, 510515, China
| | - Yu-Kui Chen
- Department of Toxicology, School of Public Health, Southern Medical University (Guangdong Provincial Key Laboratory of Tropical Disease Research), No. 1838 North Guangzhou Road, Guangzhou, 510515, China
| | - Li-Jian Chen
- Department of Forensic Pathology, School of Forensic Medicine, Southern Medical University, No. 1838 North Guangzhou Road, Guangzhou, 510515, China
| | - Kai-Kai Zhang
- Department of Forensic Pathology, School of Forensic Medicine, Southern Medical University, No. 1838 North Guangzhou Road, Guangzhou, 510515, China
| | - Qi Wang
- Department of Forensic Pathology, School of Forensic Medicine, Southern Medical University, No. 1838 North Guangzhou Road, Guangzhou, 510515, China
| | - Xiao-Li Xie
- Department of Toxicology, School of Public Health, Southern Medical University (Guangdong Provincial Key Laboratory of Tropical Disease Research), No. 1838 North Guangzhou Road, Guangzhou, 510515, China.
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4
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Othman N, Ismail Z, Selamat MI, Sheikh Abdul Kadir SH, Shibraumalisi NA. A Review of Polychlorinated Biphenyls (PCBs) Pollution in the Air: Where and How Much Are We Exposed to? INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:ijerph192113923. [PMID: 36360801 PMCID: PMC9657815 DOI: 10.3390/ijerph192113923] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Revised: 10/13/2022] [Accepted: 10/19/2022] [Indexed: 06/01/2023]
Abstract
Polychlorinated biphenyls (PCBs) were widely used in industrial and commercial applications, until they were banned in the late 1970s as a result of their significant environmental pollution. PCBs in the environment gained scientific interest because of their persistence and the potential threats they pose to humans. Traditionally, human exposure to PCBs was linked to dietary ingestion. Inhalational exposure to these contaminants is often overlooked. This review discusses the occurrence and distribution of PCBs in environmental matrices and their associated health impacts. Severe PCB contamination levels have been reported in e-waste recycling areas. The occurrence of high PCB levels, notably in urban and industrial areas, might result from extensive PCB use and intensive human activity. Furthermore, PCB contamination in the indoor environment is ten-fold higher than outdoors, which may present expose risk for humans through the inhalation of contaminated air or through the ingestion of dust. In such settings, the inhalation route may contribute significantly to PCB exposure. The data on human health effects due to PCB inhalation are scarce. More epidemiological studies should be performed to investigate the inhalation dose and response mechanism and to evaluate the health risks. Further studies should also evaluate the health impact of prolonged low-concentration PCB exposure.
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Affiliation(s)
- Naffisah Othman
- Department of Public Health Medicine, Faculty of Medicine, Universiti Teknologi MARA Sungai Buloh Campus, Jalan Hospital, Sungai Buloh 47000, Malaysia
| | - Zaliha Ismail
- Department of Public Health Medicine, Faculty of Medicine, Universiti Teknologi MARA Sungai Buloh Campus, Jalan Hospital, Sungai Buloh 47000, Malaysia
| | - Mohamad Ikhsan Selamat
- Department of Public Health Medicine, Faculty of Medicine, Universiti Teknologi MARA Sungai Buloh Campus, Jalan Hospital, Sungai Buloh 47000, Malaysia
| | - Siti Hamimah Sheikh Abdul Kadir
- Department of Biochemistry, Faculty of Medicine, Universiti Teknologi MARA Sungai Buloh Campus, Jalan Hospital, Sungai Buloh 47000, Malaysia
| | - Nur Amirah Shibraumalisi
- Department of Primary Care Medicine, Faculty of Medicine, Universiti Teknologi MARA Sungai Buloh Campus, Jalan Hospital, Sungai Buloh 47000, Malaysia
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5
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Liu X, Cao W, Liu X, Zhou Y, Wen S. Associations between Maternal Polychlorinated Dibenzo-p-dioxin and Dibenzofuran Serum Concentrations and Pulse Pressure in Early Pregnancy: A Cross-Sectional Study. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:13785. [PMID: 36360663 PMCID: PMC9654335 DOI: 10.3390/ijerph192113785] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/21/2022] [Revised: 10/19/2022] [Accepted: 10/20/2022] [Indexed: 06/16/2023]
Abstract
Pulse pressure (PP) is the difference between systolic blood pressure (SBP) and diastolic blood pressure (DBP), and an independent predictor of cardiovascular risk. Previous research suggests, with different conclusions, that exposure to polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs) could affect blood pressure (BP). We conducted a cross-sectional study to determine the association of dioxin exposure with PP in early pregnancy. A total of 305 pregnant women in early pregnancy in Yingcheng, China, recruited from May 2018 to February 2021, were included in this study. We measured 17 congeners of PCDD/Fs in maternal serum via high-resolution gas chromatography tandem high-resolution mass spectrometry. A generalized linear regression model was used to analyze the influencing factors of dioxin exposure and their relationships with PP. The levels of total PCDD/Fs (∑PCDD/Fs) ranged from 163.52 pg/g lipid to 1,513,949.52 pg/g lipid, with a mean of 10,474.22 pg/g lipid. The mean toxicity equivalent (TEQ) of total PCDD/Fs (∑TEQ-PCDD/Fs) was 42.03 pg/g lipid. The ratio of tetrachlorinated to octa-chlorinated congeners in maternal serum was enriched with an increasing number of chlorines. Pregnant women with college and above education had higher concentrations of ∑PCDD/Fs than those with education levels of junior high school and below (β = 0.34, 95% CI: 0.01, 0.67). The adjusted model for ∑TEQ-PCDD/Fs was significantly and negatively associated with PP (β = -1.79, 95% CI: -2.91, -0.68). High levels of dioxins were found in this area, and exposure to dioxins may affect the PP of women in early pregnancy, with health risks.
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Affiliation(s)
| | | | | | - Yan Zhou
- Correspondence: (Y.Z.); (S.W.); Tel.: +86-027-8765-5221 (Y.Z.)
| | - Sheng Wen
- Correspondence: (Y.Z.); (S.W.); Tel.: +86-027-8765-5221 (Y.Z.)
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6
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Association of Urinary Iodine Concentration with Depressive Symptoms among Adults: NHANES 2007-2018. Nutrients 2022; 14:nu14194165. [PMID: 36235816 PMCID: PMC9573473 DOI: 10.3390/nu14194165] [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: 09/12/2022] [Revised: 10/01/2022] [Accepted: 10/04/2022] [Indexed: 11/17/2022] Open
Abstract
The association between iodine status and depressive symptoms has not been investigated in the general population. Therefore, we drew 8935 participants from the National Health and Nutrition Examination Survey (NHANES) 2007-2018 to explore their association. In NHANES, Inductively Coupled Plasma Dynamic Reaction Cell Mass Spectroscopy was utilized to measure urinary iodine concentration (UIC), and Patient Health Questionnaire-9 was used to assess depressive symptoms. Meanwhile, we fitted logistic regression and restricted cubic spline models. We found that high UIC was associated with a higher prevalence of depressive symptoms than the normal UIC group (OR: 1.50, 95% CI: 1.04-2.16). This association was particularly pronounced and further strengthened among females (OR: 1.90, 95% CI: 1.19-3.01) and participants aged 40-59 (OR: 1.90, 95% CI: 1.11-3.25). Moreover, we found that low UIC was associated with a high prevalence of depressive symptoms among females (OR: 1.50, 95% CI: 1.02-2.18). Moreover, the dose-response relationship between UIC and depressive symptoms presented a general trend of decreased, steady transiently, and then increased. We found that participants with high UIC had a higher prevalence of depressive symptoms than those with normal UIC. Meanwhile, we also found that females with low UIC had higher odds of reporting depressive symptoms.
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Association of prenatal exposure to dioxin-like compounds, polychlorinated biphenyl, and methylmercury with event-related brain potentials in school-aged children: the Hokkaido study. Neurotoxicology 2022; 91:11-21. [DOI: 10.1016/j.neuro.2022.04.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Revised: 03/18/2022] [Accepted: 04/24/2022] [Indexed: 11/18/2022]
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8
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Sun M, Cao X, Wu Y, Shen L, Wei G. Prenatal exposure to endocrine-disrupting chemicals and thyroid function in neonates: A systematic review and meta-analysis. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2022; 231:113215. [PMID: 35065506 DOI: 10.1016/j.ecoenv.2022.113215] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2021] [Revised: 01/07/2022] [Accepted: 01/16/2022] [Indexed: 06/14/2023]
Abstract
Thyroid hormone homeostasis is essential for normal brain development in fetuses and infants. Exposure to endocrine-disrupting chemicals (EDCs) during pregnancy is associated with compromised maternal thyroid homeostasis, and thus may lead to adverse neurodevelopmental outcomes in newborns. However, evidence regarding the association of prenatal EDC exposure and thyroid hormones in newborns is controversial. Therefore, a meta-analysis to elucidate the relationship between maternal exposure to EDCs and neonatal THs was performed. A systematic search of PubMed, EMBASE, and the Cochrane Library (CENTRAL) for relevant published studies that provided quantitative data on the association between prenatal EDC exposure and neonatal thyroid hormones was conducted in August 2021. To calculate the overall estimates, we pooled the adjusted β regression coefficients with 95% confidence intervals (CIs) from each study by the inverse variance method. The pooling results indicated that prenatal EDC exposure had no significant influence on neonatal TSH, TT3, FT3, TT4 or FT4 level in the global assessment. However, in the specific exposure and outcome assessment, we found that prenatal exposure to organochlorine (β coefficient, -0.022; 95% CI, -0.04 to -0.003) and PFAS (β coefficient, -0.017; 95% CI, -0.033 to 0) was negatively associated with neonatal TT4 level. In conclusion, prenatal exposure to organochlorine and PFAS may be associated with lower neonatal TT4 level.
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Affiliation(s)
- Mang Sun
- Ministry of Education Key Laboratory of Child Development and Disorders; International Science and Technology Cooperation Base of Child Development and Critical Disorders; National Clinical Research Center for Child Health and Disorders; Chongqing Key Laboratory of Pediatrics; Department of Urology, Children's Hospital of Chongqing Medical University; Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering, Chongqing, China; The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Xining Cao
- The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Yuhao Wu
- Ministry of Education Key Laboratory of Child Development and Disorders; International Science and Technology Cooperation Base of Child Development and Critical Disorders; National Clinical Research Center for Child Health and Disorders; Chongqing Key Laboratory of Pediatrics; Department of Urology, Children's Hospital of Chongqing Medical University; Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering, Chongqing, China.
| | - Lianju Shen
- Ministry of Education Key Laboratory of Child Development and Disorders; International Science and Technology Cooperation Base of Child Development and Critical Disorders; National Clinical Research Center for Child Health and Disorders; Chongqing Key Laboratory of Pediatrics; Department of Urology, Children's Hospital of Chongqing Medical University; Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering, Chongqing, China.
| | - Guanghui Wei
- Ministry of Education Key Laboratory of Child Development and Disorders; International Science and Technology Cooperation Base of Child Development and Critical Disorders; National Clinical Research Center for Child Health and Disorders; Chongqing Key Laboratory of Pediatrics; Department of Urology, Children's Hospital of Chongqing Medical University; Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering, Chongqing, China
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9
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Pruvost-Couvreur M, Béchaux C, Rivière G, Le Bizec B. Impact of sociodemographic profile, generation and bioaccumulation on lifetime dietary and internal exposures to PCBs. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 800:149511. [PMID: 34392223 DOI: 10.1016/j.scitotenv.2021.149511] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2021] [Revised: 07/03/2021] [Accepted: 08/03/2021] [Indexed: 06/13/2023]
Abstract
Polychlorinated biphenyls (PCBs) are persistent organic pollutants triggering numerous adverse effects. Because they are present in various food, dietary exposure of the population to these contaminants must be estimated to assess the related health risk. However, the classical risk assessment approach allows only short-term estimates of exposure and does not account for dietary changes, evolution of food contaminations and bioaccumulation of PCBs through life. The approach presented here assesses lifetime PCB exposure trajectories according to birth year and individual sociodemographic profiles. Moreover, a physiologically based toxicokinetic model was developed to simulate lifetime PCB plasma concentrations, while considering physiological changes with age. A focus on the long-term impact of breastfeeding is also presented in order to consider the risk related to PCBs and due to the mother-to-child transfer. For example, the exposure of an individual born in 1972 exceeds the critical value of 20 ng PCB/kg bw/day half as often as an individual born in 1932 throughout their lifetime but 13 times more often than an individual born in 2012, according to our simulations. In addition, even if breastfeeding clearly leads to much higher dietary exposures than formula feeding, the long-term impact on PCB body burden remains negligible. Risk assessment related to PCB lifetime trajectories is described and discussed.
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Affiliation(s)
- Manon Pruvost-Couvreur
- Laboratoire d'Etude des Résidus et Contaminants dans les Aliments (LABERCA), INRAE, Oniris, Nantes F-44307, France; Risk Assessment Department, French Agency for Food, Environmental and Occupational Health and Safety, 14 Rue Pierre et Marie Curie, 94700 Maisons-Alfort, France
| | - Camille Béchaux
- Risk Assessment Department, French Agency for Food, Environmental and Occupational Health and Safety, 14 Rue Pierre et Marie Curie, 94700 Maisons-Alfort, France
| | - Gilles Rivière
- Risk Assessment Department, French Agency for Food, Environmental and Occupational Health and Safety, 14 Rue Pierre et Marie Curie, 94700 Maisons-Alfort, France.
| | - Bruno Le Bizec
- Laboratoire d'Etude des Résidus et Contaminants dans les Aliments (LABERCA), INRAE, Oniris, Nantes F-44307, France
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10
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Perinatal effects of persistent organic pollutants on thyroid hormone concentration in placenta and breastmilk. Mol Aspects Med 2021; 87:100988. [PMID: 34238594 DOI: 10.1016/j.mam.2021.100988] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2021] [Revised: 04/30/2021] [Accepted: 06/08/2021] [Indexed: 12/18/2022]
Abstract
Thyroid hormones (TH) are known to play a critical role in regulating many biological processes including growth and development, energy homeostasis, thermogenesis, lipolysis and metabolism of cholesterol. Severe TH deficiency especially during fetal development results in cretinism, but can also lead to an imbalance in metabolism with, among others, an alteration in body weight composition. Over the past two decades, increasing evidence has shown that certain persistent organic pollutants (POP) can interfere with the endocrine system. These POP referred to as "endocrine disrupting chemicals" are widely present in the environment and populations are exposed globally. Moreover, epidemiological studies have shown that a particularly sensitive period is the pre- and postnatal time. Indeed, perinatal exposure to such chemicals could lead to the onset diseases in later life. It is known, that, maternal thyroid hormones are transported by the placenta to the fetus from 6 weeks of gestation and it seems that during the first trimester, and part of the second, the fetus is entirely dependent on maternal TH supply for its development. Interferences in the TH-network as a consequence of the exposure to such pollutants could cause variations in TH concentration. Only small changes in maternal thyroid hormone levels in early stages of pregnancy can influence fetal neurological and cardiovascular development, as well as according to recent studies, have effect on childhood body composition. With this review, we will report the most recent and important studies concerning the association between thyroid hormone concentration and POP levels measured during the perinatal period. We will mostly focus on the data recently reported on placenta and breastmilk as main sources for understanding the potential consequences of exposure. The possible link between exposure to pollutants, TH dysregulation and possible adverse outcome will also be briefly discussed. From our literature search, several studies support the hypothesis that pre- and postnatal exposure to different pollutants might play a role in causing variation in thyroid hormone concentration. However, few research papers have so far studied the relationship linking exposure to pollutants, TH concentration and possible health consequences. Therefore, this review highlights the need for further research in this direction.
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11
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Kishi R, Ikeda-Araki A, Miyashita C, Itoh S, Kobayashi S, Ait Bamai Y, Yamazaki K, Tamura N, Minatoya M, Ketema RM, Poudel K, Miura R, Masuda H, Itoh M, Yamaguchi T, Fukunaga H, Ito K, Goudarzi H. Hokkaido birth cohort study on environment and children's health: cohort profile 2021. Environ Health Prev Med 2021; 26:59. [PMID: 34022817 PMCID: PMC8141139 DOI: 10.1186/s12199-021-00980-y] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2021] [Accepted: 05/07/2021] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND The Hokkaido Study on Environment and Children's Health is an ongoing study consisting of two birth cohorts of different population sizes: the Sapporo cohort and the Hokkaido cohort. Our primary objectives are to (1) examine the effects that low-level environmental chemical exposures have on birth outcomes, including birth defects and growth retardation; (2) follow the development of allergies, infectious diseases, and neurobehavioral developmental disorders, as well as perform a longitudinal observation of child development; (3) identify high-risk groups based on genetic susceptibility to environmental chemicals; and (4) identify the additive effects of various chemicals, including tobacco. METHODS The purpose of this report is to provide an update on the progress of the Hokkaido Study, summarize recent results, and suggest future directions. In particular, this report provides the latest details from questionnaire surveys, face-to-face examinations, and a collection of biological specimens from children and measurements of their chemical exposures. RESULTS The latest findings indicate different risk factors of parental characteristics on birth outcomes and the mediating effect between socioeconomic status and children that are small for the gestational age. Maternal serum folate was not associated with birth defects. Prenatal chemical exposure and smoking were associated with birth size and growth, as well as cord blood biomarkers, such as adiponectin, leptin, thyroid, and reproductive hormones. We also found significant associations between the chemical levels and neuro development, asthma, and allergies. CONCLUSIONS Chemical exposure to children can occur both before and after birth. Longer follow-up for children is crucial in birth cohort studies to reinforce the Developmental Origins of Health and Disease hypothesis. In contrast, considering shifts in the exposure levels due to regulation is also essential, which may also change the association to health outcomes. This study found that individual susceptibility to adverse health effects depends on the genotype. Epigenome modification of DNA methylation was also discovered, indicating the necessity of examining molecular biology perspectives. International collaborations can add a new dimension to the current knowledge and provide novel discoveries in the future.
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Affiliation(s)
- Reiko Kishi
- Center for Environmental and Health Sciences, Hokkaido University, Kita 12, Nishi 7, Kita-ku, Sapporo, Hokkaido, 060-0812, Japan. .,WHO Collaborating Centre for Environmental Health and Prevention of Chemical Hazards, Sapporo, Japan.
| | - Atsuko Ikeda-Araki
- Center for Environmental and Health Sciences, Hokkaido University, Kita 12, Nishi 7, Kita-ku, Sapporo, Hokkaido, 060-0812, Japan.,WHO Collaborating Centre for Environmental Health and Prevention of Chemical Hazards, Sapporo, Japan.,Faculty of Health Sciences, Hokkaido University, Sapporo, Japan
| | - Chihiro Miyashita
- Center for Environmental and Health Sciences, Hokkaido University, Kita 12, Nishi 7, Kita-ku, Sapporo, Hokkaido, 060-0812, Japan.,WHO Collaborating Centre for Environmental Health and Prevention of Chemical Hazards, Sapporo, Japan
| | - Sachiko Itoh
- Center for Environmental and Health Sciences, Hokkaido University, Kita 12, Nishi 7, Kita-ku, Sapporo, Hokkaido, 060-0812, Japan.,WHO Collaborating Centre for Environmental Health and Prevention of Chemical Hazards, Sapporo, Japan
| | - Sumitaka Kobayashi
- Center for Environmental and Health Sciences, Hokkaido University, Kita 12, Nishi 7, Kita-ku, Sapporo, Hokkaido, 060-0812, Japan.,WHO Collaborating Centre for Environmental Health and Prevention of Chemical Hazards, Sapporo, Japan
| | - Yu Ait Bamai
- Center for Environmental and Health Sciences, Hokkaido University, Kita 12, Nishi 7, Kita-ku, Sapporo, Hokkaido, 060-0812, Japan.,WHO Collaborating Centre for Environmental Health and Prevention of Chemical Hazards, Sapporo, Japan
| | - Keiko Yamazaki
- Center for Environmental and Health Sciences, Hokkaido University, Kita 12, Nishi 7, Kita-ku, Sapporo, Hokkaido, 060-0812, Japan.,WHO Collaborating Centre for Environmental Health and Prevention of Chemical Hazards, Sapporo, Japan
| | - Naomi Tamura
- Center for Environmental and Health Sciences, Hokkaido University, Kita 12, Nishi 7, Kita-ku, Sapporo, Hokkaido, 060-0812, Japan.,WHO Collaborating Centre for Environmental Health and Prevention of Chemical Hazards, Sapporo, Japan
| | - Machiko Minatoya
- Center for Environmental and Health Sciences, Hokkaido University, Kita 12, Nishi 7, Kita-ku, Sapporo, Hokkaido, 060-0812, Japan.,WHO Collaborating Centre for Environmental Health and Prevention of Chemical Hazards, Sapporo, Japan
| | - Rahel Mesfin Ketema
- Center for Environmental and Health Sciences, Hokkaido University, Kita 12, Nishi 7, Kita-ku, Sapporo, Hokkaido, 060-0812, Japan.,Graduate School of Health Sciences, Hokkaido University, Sapporo, Japan
| | - Kritika Poudel
- Center for Environmental and Health Sciences, Hokkaido University, Kita 12, Nishi 7, Kita-ku, Sapporo, Hokkaido, 060-0812, Japan.,WHO Collaborating Centre for Environmental Health and Prevention of Chemical Hazards, Sapporo, Japan.,Faculty of Health Sciences, Hokkaido University, Sapporo, Japan
| | - Ryu Miura
- Center for Environmental and Health Sciences, Hokkaido University, Kita 12, Nishi 7, Kita-ku, Sapporo, Hokkaido, 060-0812, Japan.,WHO Collaborating Centre for Environmental Health and Prevention of Chemical Hazards, Sapporo, Japan
| | - Hideyuki Masuda
- Center for Environmental and Health Sciences, Hokkaido University, Kita 12, Nishi 7, Kita-ku, Sapporo, Hokkaido, 060-0812, Japan.,WHO Collaborating Centre for Environmental Health and Prevention of Chemical Hazards, Sapporo, Japan
| | - Mariko Itoh
- Center for Environmental and Health Sciences, Hokkaido University, Kita 12, Nishi 7, Kita-ku, Sapporo, Hokkaido, 060-0812, Japan.,WHO Collaborating Centre for Environmental Health and Prevention of Chemical Hazards, Sapporo, Japan
| | - Takeshi Yamaguchi
- Center for Environmental and Health Sciences, Hokkaido University, Kita 12, Nishi 7, Kita-ku, Sapporo, Hokkaido, 060-0812, Japan.,WHO Collaborating Centre for Environmental Health and Prevention of Chemical Hazards, Sapporo, Japan
| | - Hisanori Fukunaga
- Center for Environmental and Health Sciences, Hokkaido University, Kita 12, Nishi 7, Kita-ku, Sapporo, Hokkaido, 060-0812, Japan.,WHO Collaborating Centre for Environmental Health and Prevention of Chemical Hazards, Sapporo, Japan
| | - Kumiko Ito
- Center for Environmental and Health Sciences, Hokkaido University, Kita 12, Nishi 7, Kita-ku, Sapporo, Hokkaido, 060-0812, Japan
| | - Houman Goudarzi
- Faculty of Medicine and Graduate School of Medicine, Center for Medical Education and International Relations, Hokkaido University, Sapporo, Japan
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12
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Berlin M, Barchel D, Brik A, Kohn E, Livne A, Keidar R, Tovbin J, Betser M, Moskovich M, Mandel D, Lubetzky R, Ovental A, Factor-Litvak P, Britzi M, Ziv-Baran T, Koren R, Klieger C, Berkovitch M, Matok I, Marom R. Maternal and Newborn Thyroid Hormone, and the Association With Polychlorinated Biphenyls (PCBs) Burden: The EHF (Environmental Health Fund) Birth Cohort. Front Pediatr 2021; 9:705395. [PMID: 34589452 PMCID: PMC8473683 DOI: 10.3389/fped.2021.705395] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/09/2021] [Accepted: 08/20/2021] [Indexed: 12/22/2022] Open
Abstract
Background: Polychlorinated biphenyls (PCBs) are ubiquitous environmental contaminants found in human tissues. PCBs can be transferred through the placenta and may disrupt the maternal thyroid homeostasis, and affect fetal thyroid hormone production. Several studies have shown that intrauterine exposure to PCBs might be associated with abnormal levels of thyroid hormones in mothers and their offspring. Objectives: To examine the associations between environmental exposure to PCBs and thyroid hormone levels in mothers and newborns. Methods: The EHF-Assaf-Harofeh-Ichilov cohort includes 263 mothers-newborns dyads. A total of 157 mother-newborn dyads had both PCBs and thyroid function measures. Regression models were used to estimate associations between maternal PCB exposure and maternal and newborn thyroid function, controlling for possible confounders. Results: Four PCBs congeners were analyzed: PCBs 118, 138, 153, and 180. ∑PCBs median (IQR) level was 14.65 (2.83-68.14) ng/g lipids. The median maternal thyroid-stimulating hormone (TSH) level was 2.66 (0.70-8.23) μIU/ml, the median maternal free thyroxine (FT4) level was 12.44 (11.27-13.53) μg/dL, the median maternal thyroid peroxidase antibodies (TPO Ab) level was 9.6 (7.36-12.51) IU/mL. Newborns' median total thyroxine (T4) level was 14.8 (7.6-24.9) μg/dL. No association was found between exposure to different congeners or to ∑PCBs and maternal TSH, FT4, thyroglobulin autoantibodies (Tg Ab), TPO Ab and newborn total T4 levels. In multivariable analysis a 1% change in ∑PCBs level was significantly associated with a 0.57% change in maternal TSH levels in women with body mass index (BMI) < 19. The same association was observed for each of the studied PCB congeners. Maternal TPO Ab levels statistically significantly increased by 0.53 and 0.46% for 1% increase in PCB 118 and 153 congeners, respectively. In women with BMI > 25, the association between the PCBs levels and maternal TSH levels was in the opposite direction. No association was found in women with normal BMI (19-24.9). Conclusions: Background exposure to environmentally relevant concentrations of some PCBs can alter thyroid hormone homeostasis in pregnant women and might be associated with abnormal TSH levels and TPO-Ab in women with low BMI. However, these findings require further investigation.
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Affiliation(s)
- Maya Berlin
- Clinical Pharmacology and Toxicology Unit, Shamir Medical Center (Assaf Harofeh), Affiliated to Sackler Faculty of Medicine, Tel-Aviv University, Tel Aviv, Israel.,Division of Clinical Pharmacy, Institute for Drug Research, School of Pharmacy, Faculty of Medicine, Hebrew University of Jerusalem, Jerusalem, Israel
| | - Dana Barchel
- Clinical Pharmacology and Toxicology Unit, Shamir Medical Center (Assaf Harofeh), Affiliated to Sackler Faculty of Medicine, Tel-Aviv University, Tel Aviv, Israel
| | - Anna Brik
- Clinical Pharmacology and Toxicology Unit, Shamir Medical Center (Assaf Harofeh), Affiliated to Sackler Faculty of Medicine, Tel-Aviv University, Tel Aviv, Israel
| | - Elkana Kohn
- Clinical Pharmacology and Toxicology Unit, Shamir Medical Center (Assaf Harofeh), Affiliated to Sackler Faculty of Medicine, Tel-Aviv University, Tel Aviv, Israel
| | - Ayelet Livne
- Department of Neonatology, Shamir Medical Center (Assaf Harofeh), Affiliated to Sackler Faculty of Medicine, Tel-Aviv University, Tel Aviv, Israel
| | - Rimona Keidar
- Department of Neonatology, Shamir Medical Center (Assaf Harofeh), Affiliated to Sackler Faculty of Medicine, Tel-Aviv University, Tel Aviv, Israel
| | - Josef Tovbin
- Division of Obstetrics and Gynecology, Shamir Medical Center (Assaf Harofeh), Affiliated to Sackler Faculty of Medicine, Tel-Aviv University, Tel Aviv, Israel
| | - Moshe Betser
- Division of Obstetrics and Gynecology, Shamir Medical Center (Assaf Harofeh), Affiliated to Sackler Faculty of Medicine, Tel-Aviv University, Tel Aviv, Israel
| | - Miki Moskovich
- Division of Obstetrics and Gynecology, Shamir Medical Center (Assaf Harofeh), Affiliated to Sackler Faculty of Medicine, Tel-Aviv University, Tel Aviv, Israel
| | - Dror Mandel
- Departments of Neonatology and Pediatrics, Dana Dwek Children's Hospital, Tel Aviv Medical Center, Affiliated to Sackler Faculty of Medicine, Tel-Aviv University, Tel Aviv, Israel
| | - Ronit Lubetzky
- Departments of Neonatology and Pediatrics, Dana Dwek Children's Hospital, Tel Aviv Medical Center, Affiliated to Sackler Faculty of Medicine, Tel-Aviv University, Tel Aviv, Israel
| | - Amit Ovental
- Departments of Neonatology and Pediatrics, Dana Dwek Children's Hospital, Tel Aviv Medical Center, Affiliated to Sackler Faculty of Medicine, Tel-Aviv University, Tel Aviv, Israel
| | - Pam Factor-Litvak
- Department of Epidemiology, Mailman School of Public Health, Columbia University, New York, NY, United States
| | - Malka Britzi
- Residues Lab, Kimron Veterinary Institute, Beit-Dagan, Israel
| | - Tomer Ziv-Baran
- Department of Epidemiology and Preventive Medicine, School of Public Health, Sackler Faculty of Medicine, Tel-Aviv University, Tel Aviv, Israel
| | - Ronit Koren
- Division of Obstetrics and Gynecology, Shamir Medical Center (Assaf Harofeh), Affiliated to Sackler Faculty of Medicine, Tel-Aviv University, Tel Aviv, Israel.,Department of Internal Medicine A, Shamir Medical Center (Assaf Harofeh), Affiliated to Sackler Faculty of Medicine, Tel-Aviv University, Tel Aviv, Israel
| | - Chagit Klieger
- Feto-Maternal Unit, Lis Hospital, Tel Aviv Medical Center, Affiliated to Sackler Faculty of Medicine, Tel-Aviv University, Tel Aviv, Israel
| | - Matitiahu Berkovitch
- Clinical Pharmacology and Toxicology Unit, Shamir Medical Center (Assaf Harofeh), Affiliated to Sackler Faculty of Medicine, Tel-Aviv University, Tel Aviv, Israel
| | - Ilan Matok
- Division of Clinical Pharmacy, Institute for Drug Research, School of Pharmacy, Faculty of Medicine, Hebrew University of Jerusalem, Jerusalem, Israel
| | - Ronella Marom
- Departments of Neonatology and Pediatrics, Dana Dwek Children's Hospital, Tel Aviv Medical Center, Affiliated to Sackler Faculty of Medicine, Tel-Aviv University, Tel Aviv, Israel
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13
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Yamazaki K, Itoh S, Araki A, Miyashita C, Minatoya M, Ikeno T, Kato S, Fujikura K, Mizutani F, Chisaki Y, Kishi R. Associations between prenatal exposure to organochlorine pesticides and thyroid hormone levels in mothers and infants: The Hokkaido study on environment and children's health. ENVIRONMENTAL RESEARCH 2020; 189:109840. [PMID: 32979988 DOI: 10.1016/j.envres.2020.109840] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/13/2020] [Revised: 05/19/2020] [Accepted: 06/15/2020] [Indexed: 06/11/2023]
Abstract
Organochlorine pesticides (OCPs) are environmental contaminants with potentially adverse effects on neurodevelopment. Previous findings on the association between prenatal exposure to OCPs and the maternal or infant thyroid hormone system are inconsistent. Moreover, the influence of exposure to multiple OCPs and other chemical compounds is not clearly understood. Our study therefore aimed to examine the association between OCP exposure and both maternal and infant thyroid hormone systems. We also explored multiple exposure effects of OCPs and the influence of each compound using weighted quantile sum (WQS) methods. The study population included 514 participants in the Hokkaido study, recruited from 2002 to 2005 at one hospital in Sapporo, Japan. To quantify 29 OCPs, maternal blood samples were analyzed using gas chromatography/mass spectrometry. Blood samples for measuring thyroid stimulating hormone (TSH) and free thyroxine (FT4) levels were obtained from mothers during the early gestational stage (mean 11.4 weeks), and from infants between 7 and 43 days of age. The data of 333 mother child pairs with OCP and thyroid hormone measurements were included in the final analyses. Multivariate regression models showed a negative association between maternal FT4 and levels of o,p'-dichlorodiphenyldichloroethylene (DDE), o,p'-dichlorodiphenyltrichloroethane (DDT), and dieldrin. The WQS analysis showed that o,p'-DDT (48.6%), cis-heptachlorepoxide (22.8%), dieldrin (15.4%) were the primary contributors to the significant multiple exposure effect of OCPs on maternal FT4. For infants, we found a positive association between FT4 and cis-nonachlor and mirex. The most contributory compounds in the multiple exposure effect were trans-nonachlor (27.1%) and cis-nonachlor (13.8%), while several compounds contributed to the WQS via small weights (0.4-9.1%). These results indicate that OCPs, even at very low levels, may influence maternal and child thyroid hormone levels, which could modulate child development.
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Affiliation(s)
- Keiko Yamazaki
- Center for Environmental and Health Sciences, Hokkaido University, North 12 West 7, Kita-ku, Sapporo, 060-0812, Japan
| | - Sachiko Itoh
- Center for Environmental and Health Sciences, Hokkaido University, North 12 West 7, Kita-ku, Sapporo, 060-0812, Japan
| | - Atsuko Araki
- Center for Environmental and Health Sciences, Hokkaido University, North 12 West 7, Kita-ku, Sapporo, 060-0812, Japan
| | - Chihiro Miyashita
- Center for Environmental and Health Sciences, Hokkaido University, North 12 West 7, Kita-ku, Sapporo, 060-0812, Japan
| | - Machiko Minatoya
- Center for Environmental and Health Sciences, Hokkaido University, North 12 West 7, Kita-ku, Sapporo, 060-0812, Japan; Department of Health Sciences, School of Medicine, Hokkaido University, North 12 West 5, Kita-ku, Sapporo, 060-0812, Japan
| | - Tamiko Ikeno
- Center for Environmental and Health Sciences, Hokkaido University, North 12 West 7, Kita-ku, Sapporo, 060-0812, Japan
| | - Shizue Kato
- Department of Public Health Sciences, Hokkaido University, North 15, West 7, Kita-ku, Sapporo, 060-8638, Japan
| | | | - Futoshi Mizutani
- Institute of Environmental Ecology, IDEA Consultants, Inc., 1334-5, Riemon, Yaizu, Shizuoka, Japan
| | - Yoichi Chisaki
- Institute of Environmental Ecology, IDEA Consultants, Inc., 1334-5, Riemon, Yaizu, Shizuoka, Japan
| | - Reiko Kishi
- Center for Environmental and Health Sciences, Hokkaido University, North 12 West 7, Kita-ku, Sapporo, 060-0812, Japan.
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14
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Polychlorinated Biphenyls (PCBs): Risk Factors for Autism Spectrum Disorder? TOXICS 2020; 8:toxics8030070. [PMID: 32957475 PMCID: PMC7560399 DOI: 10.3390/toxics8030070] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/07/2020] [Revised: 09/14/2020] [Accepted: 09/16/2020] [Indexed: 02/06/2023]
Abstract
Autism spectrum disorder (ASD) includes a group of multifactorial neurodevelopmental disorders defined clinically by core deficits in social reciprocity and communication, restrictive interests and repetitive behaviors. ASD affects one in 54 children in the United States, one in 89 children in Europe, and one in 277 children in Asia, with an estimated worldwide prevalence of 1-2%. While there is increasing consensus that ASD results from complex gene x environment interactions, the identity of specific environmental risk factors and the mechanisms by which environmental and genetic factors interact to determine individual risk remain critical gaps in our understanding of ASD etiology. Polychlorinated biphenyls (PCBs) are ubiquitous environmental contaminants that have been linked to altered neurodevelopment in humans. Preclinical studies demonstrate that PCBs modulate signaling pathways implicated in ASD and phenocopy the effects of ASD risk genes on critical morphometric determinants of neuronal connectivity, such as dendritic arborization. Here, we review human and experimental evidence identifying PCBs as potential risk factors for ASD and discuss the potential for PCBs to influence not only core symptoms of ASD, but also comorbidities commonly associated with ASD, via effects on the central and peripheral nervous systems, and/or peripheral target tissues, using bladder dysfunction as an example. We also discuss critical data gaps in the literature implicating PCBs as ASD risk factors. Unlike genetic factors, which are currently irreversible, environmental factors are modifiable risks. Therefore, data confirming PCBs as risk factors for ASD may suggest rational approaches for the primary prevention of ASD in genetically susceptible individuals.
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15
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Xu C, Su X, Xu Y, Ma S, Duan W, Mo X. Exploring the associations of serum concentrations of PCBs, PCDDs, and PCDFs with walking speed in the U.S. general population: Beyond standard linear models. ENVIRONMENTAL RESEARCH 2019; 178:108666. [PMID: 31472363 DOI: 10.1016/j.envres.2019.108666] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2019] [Revised: 08/09/2019] [Accepted: 08/13/2019] [Indexed: 06/10/2023]
Abstract
Studies have shown that persistent organic pollutants (POPs) can have various health effects. However, little is known about the effects of multiple chemicals with possible common sources of exposure on walking speed, a proxy index reflecting lower limb neuromuscular function and physical function. We simultaneously applied multiple linear and nonlinear statistical models to explore the complex exposure-response relationship between a mixture of 22 selected POPs and walking speed. A total of 14 polychlorinated biphenyls (PCBs), 3 polychlorinated dibenzo-p-dioxins (PCDDs), and 5 polychlorinated dibenzofurans (PCDFs) were measured in the serum of participants in the National Health and Nutrition Examination Survey (NHANES) from 1999 to 2002. Walking speed was measured during a physical examination. Linear regression (LR), least absolute shrinkage and selection operator (LASSO), and group LASSO were used to evaluate the linearity of mixtures, while restricted cubic spline (RCS) regression, random forest (RF), and Bayesian kernel machine regression (BKMR) models were used to evaluate the nonlinearity of mixtures. Potential confounders were adjusted in the above models. A total of 436 subjects were included in our final analysis. The results of the LR model did not identify any POP exposure that was significantly associated with walking speed. The LASSO results revealed an inverse association of one PCDD congener and two PCDF congeners with walking speed, while the group LASSO analysis identified PCDFs at the exposure level and at the group level. In the RCS analysis, two PCB congeners presented significant overall associations with walking speed. The PCB congener PCB194 showed statistically significant effects on the outcome (P = 0.01) when a permutation-based RF was used. The BKMR analysis suggested that PCBs and PCDFs (probabilities = 0.887 and 0.909, respectively) are potentially associated with walking speed. Complex statistical models, such as RCS regression, RF and BKMR models, can detect the nonlinear and nonadditive relationships between PCBs and walking speed, while LASSO and group LASSO can identify only the linear relationships between PCDFs and walking speed. Fully considering the influence of collinearity in each method during modelling can increase the comprehensiveness and reliability of conclusions in studies of multiple chemicals.
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Affiliation(s)
- Cheng Xu
- Department of Cardiothoracic Surgery, Children's Hospital of Nanjing Medical University, Nanjing, 210008, China
| | - Xiaoqi Su
- Department of Cardiothoracic Surgery, Children's Hospital of Nanjing Medical University, Nanjing, 210008, China
| | - Yang Xu
- Department of Cardiothoracic Surgery, Children's Hospital of Nanjing Medical University, Nanjing, 210008, China
| | - Siyu Ma
- Department of Cardiothoracic Surgery, Children's Hospital of Nanjing Medical University, Nanjing, 210008, China
| | - Weiwei Duan
- Department of Bioinformatics, School of Biomedical Engineering and Informatics, Nanjing Medical University, Nanjing, 211166, China.
| | - Xuming Mo
- Department of Cardiothoracic Surgery, Children's Hospital of Nanjing Medical University, Nanjing, 210008, China.
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16
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Duarte-Hospital C, Huc L, Bortoli S, Coumoul X. Les xénobiotiques, quel impact sur les maladies métaboliques ? CAHIERS DE NUTRITION ET DE DIÉTÉTIQUE 2019. [DOI: 10.1016/j.cnd.2019.07.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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17
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Bruce-Vanderpuije P, Megson D, Jobst K, Jones GR, Reiner E, Sandau CD, Clarke E, Adu-Kumi S, Gardella JA. Background levels of dioxin-like polychlorinated biphenyls (dlPCBs), polychlorinated, polybrominated and mixed halogenated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs, PBDD/Fs & PXDD/Fs) in sera of pregnant women in Accra, Ghana. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 673:631-642. [PMID: 30999104 DOI: 10.1016/j.scitotenv.2019.04.060] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/30/2018] [Revised: 03/11/2019] [Accepted: 04/04/2019] [Indexed: 06/09/2023]
Abstract
Human exposure data on dioxins and dioxin-like compounds (DLCs) in Ghana are limited. Based on health risks associated with dioxins and DLCs, the impact of maternal body burdens on foetal exposure is significant. This is the first study that assesses polychlorinated, polybrominated and mixed halogenated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs, PBDD/Fs and PXDD/Fs), and dioxin-like polychlorinated biphenyls (dlPCBs) in sera of primiparous Ghanaians. Our sample selection includes 34 participants from two municipalities (Accra and Tema), and explores contributions from environmental and dietary exposures using questionnaire data. Sample preparation involved C18 solid phase extraction, purification with acidified silica and lipid removal cartridges, and detection with gas chromatography-atmospheric pressure chemical ionization-tandem mass spectrometry. The calculated average toxic equivalent concentration was 5.3 pg TEQ/g lw, with contributions from dlPCBs (1.25 pg TEQ/g lw), PCDD/Fs (3.10 pg TEQ/g lw), PBDD/Fs (0.49 pg TEQ/g lw) and PXDD/Fs (0.50 pg TEQ/g lw). The calculated total TEQ concentration was lower than background TEQ concentrations reported in sera of pregnant women globally. Positive correlations were obtained for total dioxins and DLC concentrations with age and Body Mass Index (BMI). Dietary intake of seafood and dairy products had a strong influence on PCDD/F and dlPCB concentrations. Statistically significant differences were observed for dioxins and DLCs in participants from Accra (in close proximity to Agbogbloshie e-waste site) and Tema. Given the significant TEQ contribution of PBDD/Fs and PXDD/Fs (~20%), it is essential to explore these classes of dioxins and DLCs in future biomonitoring studies as they may pose health risks, and add extra diagnostic information in source exposure investigations.
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Affiliation(s)
- Pennante Bruce-Vanderpuije
- Department of Chemistry, University at Buffalo, The State University of New York, Buffalo, NY 14260, USA; CSIR Water Research Institute, P. O. Box AH 38, Achimota, Accra, Ghana
| | - David Megson
- School of Science and the Environment, Manchester Metropolitan University, Manchester, United Kingdom; Chemistry Matters Inc., Suite 405, 104-1240 Kensington Road NW, Calgary, AB T2N 3P7, Canada
| | - Karl Jobst
- Ontario Ministry of the Environment, Conservation and Parks, Laboratory Services Branch, Toronto, ON M9P 3V6, Canada
| | | | - Eric Reiner
- Ontario Ministry of the Environment, Conservation and Parks, Laboratory Services Branch, Toronto, ON M9P 3V6, Canada
| | - Court D Sandau
- Chemistry Matters Inc., Suite 405, 104-1240 Kensington Road NW, Calgary, AB T2N 3P7, Canada; Mount Royal University, Department of Earth and Environmental Sciences, Faculty of Science and Technology, 4825 Mount Royal Gate SW, Calgary, AB T3E 6K6, Canada
| | - Edith Clarke
- Occupational and Environmental Health Unit, Ministry of Health/Ghana Health Service, Ghana
| | - Sam Adu-Kumi
- Environmental Protection Agency, P. O. Box MB 326, Ministries Post Office, Accra, Ghana
| | - Joseph A Gardella
- Department of Chemistry, University at Buffalo, The State University of New York, Buffalo, NY 14260, USA.
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18
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Yu D, Liu X, Liu X, Cao W, Zhang X, Tian H, Wang J, Xiong N, Wen S, Wu Y, Sun X, Zhou Y. Polychlorinated Dibenzo-p-Dioxins, Polychlorinated Dibenzofurans, and Dioxin-Like Polychlorinated Biphenyls in Umbilical Cord Serum from Pregnant Women Living Near a Chemical Plant in Tianjin, China. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2019; 16:ijerph16122178. [PMID: 31248229 PMCID: PMC6616537 DOI: 10.3390/ijerph16122178] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/02/2019] [Revised: 06/18/2019] [Accepted: 06/19/2019] [Indexed: 01/18/2023]
Abstract
Polychlorinated dibenzo-p-dioxins, polychlorinated dibenzofurans (PCDD/Fs), and dioxin-like polychlorinated biphenyls (dl-PCBs) are bioaccumulative compounds that may affect fetal growth and infant development. The aim of this study was to determine whether the pregnant women living near a chemical plant in Tianjin had a risk of exposure to dioxins. Concentrations of PCDD/Fs and dl-PCBs in 24 umbilical cord serum samples collected from pregnant women were measured using a high-resolution gas chromatograph with a high-resolution mass spectrometer (HRGC-HRMS) and an isotopic dilution method. The levels of ∑(PCDD/Fs + dl-PCBs) were in the range 476-8307 pg·g-1 lipid, with a mean of 3037 pg·g-1. The mean World Health Organization toxicity equivalent (WHO-TEQ) for PCDD/Fs and dl-PCBs was 14.0 and 2.14 pg·g-1 lipid, respectively. The PCDD/Fs and dl-PCBs contributed 86.7% and 13.3%, respectively, to the total TEQ. The octa-CDFs and penta-CBs were predominant for the PCDD/Fs and dl-PCBs, accounting for 57.6% and 74.3%, respectively. Several PCDD/F and dl-PCB congeners were highly correlated, such as PCB 105 and PCB 118 (r = 0.982, p < 0.001). Although the results hint at decreasing trends for PCDD/F and dl-PCBs by comparison with a similar study in Tianjin, a total TEQ of 41.7% of study participants had a body burden that exceeded the biomonitoring equivalents for dioxins. It was shown that pregnant women and infants had a health risk of exposure to dioxins.
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Affiliation(s)
- Dezhong Yu
- School of Chemical and Environmental Engineering, Wuhan Institute of Technology, LiuFang Campus, No.206, Guanggu 1st road, Wuhan 430205, China.
| | - Xiaofang Liu
- School of Chemical and Environmental Engineering, Wuhan Institute of Technology, LiuFang Campus, No.206, Guanggu 1st road, Wuhan 430205, China.
- Hubei Provincial Key Laboratory for Applied Toxicology, Hubei Provincial Center for Disease Control and Prevention, #6 Zhuo Daoquan North Road, Wuhan 430079, China.
| | - Xiao Liu
- Hubei Provincial Key Laboratory for Applied Toxicology, Hubei Provincial Center for Disease Control and Prevention, #6 Zhuo Daoquan North Road, Wuhan 430079, China.
| | - Wencheng Cao
- Hubei Provincial Key Laboratory for Applied Toxicology, Hubei Provincial Center for Disease Control and Prevention, #6 Zhuo Daoquan North Road, Wuhan 430079, China.
| | - Xiaotian Zhang
- Hubei Provincial Key Laboratory for Applied Toxicology, Hubei Provincial Center for Disease Control and Prevention, #6 Zhuo Daoquan North Road, Wuhan 430079, China.
| | - Haoyuan Tian
- Key Laboratory of Chemical Safety and Health, National Institute of Occupational Health and Poison Control, Chinese Center for Disease Control and Prevention, #27 Nan Wei Road, Beijing 100050, China.
| | - Jin Wang
- Key Laboratory of Chemical Safety and Health, National Institute of Occupational Health and Poison Control, Chinese Center for Disease Control and Prevention, #27 Nan Wei Road, Beijing 100050, China.
| | - Nan Xiong
- College of Chemistry and Materials Science, South Central University for Nationalities, #182 Minzu Avenue, Wuhan 430074, China.
| | - Sheng Wen
- Hubei Provincial Key Laboratory for Applied Toxicology, Hubei Provincial Center for Disease Control and Prevention, #6 Zhuo Daoquan North Road, Wuhan 430079, China.
| | - Yongning Wu
- The Key Laboratory of Food Safety Risk Assessment, Ministry of Health (CFSA) and China National Center for Food Safety Risk Assessment, #7 Panjiayuan Nanli, Beijing 100021, China.
| | - Xin Sun
- Key Laboratory of Chemical Safety and Health, National Institute of Occupational Health and Poison Control, Chinese Center for Disease Control and Prevention, #27 Nan Wei Road, Beijing 100050, China.
| | - Yan Zhou
- Hubei Provincial Key Laboratory for Applied Toxicology, Hubei Provincial Center for Disease Control and Prevention, #6 Zhuo Daoquan North Road, Wuhan 430079, China.
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19
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Itoh S, Baba T, Yuasa M, Miyashita C, Kobayashi S, Araki A, Sasaki S, Kajiwara J, Hori T, Todaka T, Fujikura K, Nakajima S, Kato S, Kishi R. Association of maternal serum concentration of hydroxylated polychlorinated biphenyls with maternal and neonatal thyroid hormones: The Hokkaido birth cohort study. ENVIRONMENTAL RESEARCH 2018; 167:583-590. [PMID: 30173115 DOI: 10.1016/j.envres.2018.08.027] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2018] [Revised: 08/17/2018] [Accepted: 08/20/2018] [Indexed: 05/18/2023]
Abstract
BACKGROUND Evidence on the toxicity of hydroxylated metabolites of polychlorinated biphenyls (OH-PCBs) for thyroid hormones (TH) is limited, and the underlying mechanism remains unknown. OBJECTIVES We aimed to investigate the effects of environmental prenatal exposure to OH-PCBs and maternal and neonatal TH levels, taking the maternal-fetal TH transfer into account. METHODS In this prospective birth cohort (the "Hokkaido study") we included 222 mother-neonate pairs. We measured five OH-PCB isomers in maternal serum samples either during pregnancy or within 5 days of delivery. Thyroid stimulating hormone (TSH) and free thyroxine (FT4) levels were obtained from maternal blood samples at an early gestational stage (median; 11.1 weeks) and from heel prick samples of neonates between 4 and 7 days after birth. Multiple linear regression analysis and structural equation modeling (SEM) were performed to investigate the associations between maternal OH-PCB and maternal and neonatal TH levels. RESULTS Median concentration of ∑OH-PCBs was 25.37 pg/g wet weight. The predominant isomer was 4-OH-CB187, followed by 4-OH-CB146+3-OH-CB153. In the fully adjusted linear regression analysis, maternal ∑OH-PCBs was positively associated with maternal FT4, and 4-OH-CB187 was positively associated with both maternal and neonatal FT4 levels. Maternal OH-PCBs showed no significant association with TSH among mothers and neonates. Path analysis indicated the indirect pathway from 4-OH-CB187 exposure to increased neonatal FT4, via maternal THs and neonatal TSH. CONCLUSIONS These findings suggest that maternal exposure to OH-PCBs during pregnancy may increase both maternal and neonatal FT4 levels. Neonatal FT4 is presumed to be increased by prenatal 4-OH-CB187 indirectly, and this process may be mediated by maternal THs and neonatal TSH.
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Affiliation(s)
- Sachiko Itoh
- Center for Environmental Health and Sciences, Hokkaido University, Sapporo, Japan
| | - Toshiaki Baba
- Center for Environmental Health and Sciences, Hokkaido University, Sapporo, Japan; Department of Mental Health, Graduate School of Medicine, University of Tokyo, Tokyo, Japan
| | - Motoyuki Yuasa
- Faculty of International Liberal Arts, Juntendo University, Tokyo, Japan
| | - Chihiro Miyashita
- Center for Environmental Health and Sciences, Hokkaido University, Sapporo, Japan
| | - Sumitaka Kobayashi
- Center for Environmental Health and Sciences, Hokkaido University, Sapporo, Japan
| | - Atsuko Araki
- Center for Environmental Health and Sciences, Hokkaido University, Sapporo, Japan
| | - Seiko Sasaki
- Department of Public Health Sciences, Hokkaido University, Sapporo, Japan
| | - Jumboku Kajiwara
- Fukuoka Institute of Health and Environmental Sciences, Fukuoka, Japan
| | - Tsuguhide Hori
- Fukuoka Institute of Health and Environmental Sciences, Fukuoka, Japan
| | - Takashi Todaka
- Fukuoka Institute of Health and Environmental Sciences, Fukuoka, Japan
| | | | - Sonomi Nakajima
- Department of Occupational Therapy, School of Health Sciences, Sapporo Medical University, Sapporo, Japan
| | - Shizue Kato
- Department of Public Health Sciences, Hokkaido University, Sapporo, Japan
| | - Reiko Kishi
- Center for Environmental Health and Sciences, Hokkaido University, Sapporo, Japan.
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20
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Zhang R, Shi X, Sun Y, Zhang Q, Wang W. Insights into the catalytic mechanism of dehydrogenase BphB: A quantum mechanics/molecular mechanics study. CHEMOSPHERE 2018; 208:69-76. [PMID: 29860146 DOI: 10.1016/j.chemosphere.2018.05.063] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/28/2018] [Revised: 05/10/2018] [Accepted: 05/11/2018] [Indexed: 06/08/2023]
Abstract
The present study delineated the dehydrogenation mechanism of cis-2,3-dihydro-2,3-dihydroxybiphenyl (2,3-DDBPH) and cis-2,3-dihydro-2,3-dihydroxy-4,4'-dichlorobiphenyl (2,3-DD-4,4'-DBPH) by Pandoraea pnomenusa strain B-356 cis-2,3-dihydro-2,3-dihydroxybiphenyl dehydrogenase (BphB) in atomistic detail. The enzymatic process was investigated by a combined quantum mechanics/molecular mechanics (QM/MM) approach. Five different snapshots were extracted and calculated, which revealed that the Boltzmann-weighted average barriers of 2,3-DDBPH and 2,3-DD-4,4'-DBPH dehydrogenation processes are 10.7 and 11.5 kcal mol-1, respectively. The established dehydrogenation mechanism provides new insight into the degradation processes of other chlorinated 2,3-DDBPH. In addition to Asn115, Ser142, and Lys149, the importance of Ile 89, Asn143, Pro184, Met 187, Thr189, and Lue 191 during the dehydrogenation process of 2,3-DDBPH and 2,3-DD-4,4'-DBPH were also highlighted to search for promising mutation targets for improving the catalytic efficiency of BphB.
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Affiliation(s)
- Ruiming Zhang
- Environment Research Institute, Shandong University, Jinan, 250100, PR China
| | - Xiangli Shi
- Environment Research Institute, Shandong University, Jinan, 250100, PR China
| | - Yanhui Sun
- College of Environment and Safety Engineering, Qingdao University of Science and Technology, Qingdao, 266042, PR China
| | - Qingzhu Zhang
- Environment Research Institute, Shandong University, Jinan, 250100, PR China.
| | - Wenxing Wang
- Environment Research Institute, Shandong University, Jinan, 250100, PR China
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21
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Kishi R, Araki A, Miyashita C, Itoh S, Minatoya M, Kobayashi S, Yamazaki K, Ait Bamai Y, Miura R, Tamura N. [Importance of Two Birth Cohorts (n=20,926 and n=514): 15 Years' Experience of the Hokkaido Study on Environment and Children's Health: Malformation, Development and Allergy]. Nihon Eiseigaku Zasshi 2018; 73:164-177. [PMID: 29848869 DOI: 10.1265/jjh.73.164] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Since "Our Stolen Future" by Theo Colborn was published in 1996, global interest on the impact of chemical substances, such as the endocrine-disrupting action of chemicals, has increased. In Japan, "The Hokkaido Study on Environment and Children's Health: Malformation, Development and Allergy" was launched in 2001. It was a model of Japan Environment and Children's Study of the Ministry of the Environment. In a large-scale, Hokkaido cohort, we obtained the consent of 20,926 mothers at the organogenesis stage with the cooperation of 37 obstetrics clinics in Hokkaido. We tracked the effects of endocrine disruptors on developmental disorders. In a small-scale Sapporo cohort, we observed in detail the neuropsychiatric development of children with the consent of 514 mothers in their late pregnancy. We examined how prenatal exposure to low concentrations of environmental chemicals affect the development of organs and the postnatal development of children. Maternal exposure to POPs, such as PCB/dioxins and perfluorinated alkyl substances, has affected not only children's birth size, thyroid functions, and sex hormone levels, but also postnatal neurodevelopment, infection, and allergy among others. The associations of short-half-life substances, such as DEHP and BPA, with obesity, ASD, and ADHD have been investigated. Gene-environment interactions have been found for smoking, caffeine, folic acid, and PCB/dioxin. In 2015, our center was officially designated as the WHO Collaborating Centre for Environmental Health and Prevention of Chemical Hazards, and we continue to the contribute to the global perspectives of child health.
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Affiliation(s)
- Reiko Kishi
- Center for Environmental and Health Sciences,Hokkaido University.,WHO Collaborating Centre for Environmental Health and Prevention of Chemical Hazards
| | - Atsuko Araki
- Center for Environmental and Health Sciences,Hokkaido University.,WHO Collaborating Centre for Environmental Health and Prevention of Chemical Hazards
| | - Chihiro Miyashita
- Center for Environmental and Health Sciences,Hokkaido University.,WHO Collaborating Centre for Environmental Health and Prevention of Chemical Hazards
| | - Sachiko Itoh
- Center for Environmental and Health Sciences,Hokkaido University.,WHO Collaborating Centre for Environmental Health and Prevention of Chemical Hazards
| | - Machiko Minatoya
- Center for Environmental and Health Sciences,Hokkaido University.,WHO Collaborating Centre for Environmental Health and Prevention of Chemical Hazards
| | - Sumitaka Kobayashi
- Center for Environmental and Health Sciences,Hokkaido University.,WHO Collaborating Centre for Environmental Health and Prevention of Chemical Hazards
| | - Keiko Yamazaki
- Center for Environmental and Health Sciences,Hokkaido University.,WHO Collaborating Centre for Environmental Health and Prevention of Chemical Hazards
| | - Yu Ait Bamai
- Center for Environmental and Health Sciences,Hokkaido University.,WHO Collaborating Centre for Environmental Health and Prevention of Chemical Hazards
| | - Ryu Miura
- Center for Environmental and Health Sciences,Hokkaido University.,WHO Collaborating Centre for Environmental Health and Prevention of Chemical Hazards
| | - Naomi Tamura
- Center for Environmental and Health Sciences,Hokkaido University.,WHO Collaborating Centre for Environmental Health and Prevention of Chemical Hazards
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