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Grant-Alfieri A, Herman WH, Watkins DJ, Batterman S, Karvonen-Gutierrez C, Park SK. Associations of serum persistent organic pollutant concentrations with incident diabetes in midlife women: The Study of Women's Health Across the Nation Multi-Pollutant Study. ENVIRONMENTAL RESEARCH 2024; 260:119582. [PMID: 38992756 DOI: 10.1016/j.envres.2024.119582] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/17/2024] [Revised: 06/30/2024] [Accepted: 07/07/2024] [Indexed: 07/13/2024]
Abstract
BACKGROUND Organochlorine pesticides (OCPs), polybrominated diphenyl ethers (PBDEs), and polychlorinated biphenyls (PCBs) are persistent organic pollutants (POPs) that can negatively impact metabolic health through pathways including endocrine disruption. Few studies have evaluated diabetes risk associated with PBDEs. Little is known about the joint effect of exposure to POP mixtures on diabetes risk. OBJECTIVES We investigated the relationship between POPs, individually and as mixtures, and diabetes development over 18 years (1999-2016) in midlife women. METHODS We measured lipid-standardized serum concentrations of 34 PCBs, 19 OCPs, and 14 PBDEs in 1040 midlife women aged 45-56 years from the Study of Women's Health Across the Nation. We tested the association between POPs measured in 1999/2000 and incident diabetes using Cox proportional hazards models. We evaluated diabetes risk associated with the overall POP mixture using Quantile-Based G-Computation (QBGC). RESULTS For most mixture components, single pollutant and mixtures analyses indicated null associations with diabetes risk, however results were inconsistent. After adjustment, hazard ratios (HRs) of developing diabetes (95% CI) associated with upper exposure tertiles (T2/T3) compared with the first tertile (T1), were 1.7 (1.0, 2.8) at T2 and 1.5 (0.84, 2.7) at T3 for hexachlorobenzene and 1.9 (1.1, 3.3) at T2 and 1.6 (0.88, 2.9) at T3 for PCB 123. A doubling of PBDE 47 was associated with 1.11 (1.00, 1.24) times the risk of T2D. QBGC identified no association for the overall joint effect of the POP mixture on diabetes (HR = 1.04 [0.53, 2.07]). CONCLUSION Exposure to a mixture of PCBs, OCPs, and PBDEs was not associated with incident diabetes in midlife U.S. women, although some individual POPs demonstrated significant yet inconsistent associations with diabetes. Non-linear and non-monotonic dose-response dynamics deserve further exploration. More research is needed on the diabetogenic effects of PBDEs.
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Affiliation(s)
- Amelia Grant-Alfieri
- Department of Environmental Health Sciences, University of Michigan School of Public Health, Ann Arbor, MI, USA
| | - William H Herman
- Department of Epidemiology, University of Michigan School of Public Health, Ann Arbor, MI, USA; Department of Internal Medicine, Division of Metabolism, Endocrinology, and Diabetes, University of Michigan Medical School, Ann Arbor, MI, USA
| | - Deborah J Watkins
- Department of Environmental Health Sciences, University of Michigan School of Public Health, Ann Arbor, MI, USA
| | - Stuart Batterman
- Department of Environmental Health Sciences, University of Michigan School of Public Health, Ann Arbor, MI, USA
| | | | - Sung Kyun Park
- Department of Environmental Health Sciences, University of Michigan School of Public Health, Ann Arbor, MI, USA; Department of Epidemiology, University of Michigan School of Public Health, Ann Arbor, MI, USA.
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Niu H, Xu M, Tu P, Xu Y, Li X, Xing M, Chen Z, Wang X, Lou X, Wu L, Sun S. Emerging Contaminants: An Emerging Risk Factor for Diabetes Mellitus. TOXICS 2024; 12:47. [PMID: 38251002 PMCID: PMC10819641 DOI: 10.3390/toxics12010047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Revised: 12/15/2023] [Accepted: 12/17/2023] [Indexed: 01/23/2024]
Abstract
Emerging contaminants have been increasingly recognized as critical determinants in global public health outcomes. However, the intricate relationship between these contaminants and glucose metabolism remains to be fully elucidated. The paucity of comprehensive clinical data, coupled with the need for in-depth mechanistic investigations, underscores the urgency to decipher the precise molecular and cellular pathways through which these contaminants potentially mediate the initiation and progression of diabetes mellitus. A profound understanding of the epidemiological impact of these emerging contaminants, as well as the elucidation of the underlying mechanistic pathways, is indispensable for the formulation of evidence-based policy and preventive interventions. This review systematically aggregates contemporary findings from epidemiological investigations and delves into the mechanistic correlates that tether exposure to emerging contaminants, including endocrine disruptors, perfluorinated compounds, microplastics, and antibiotics, to glycemic dysregulation. A nuanced exploration is undertaken focusing on potential dietary sources and the consequential role of the gut microbiome in their toxic effects. This review endeavors to provide a foundational reference for future investigations into the complex interplay between emerging contaminants and diabetes mellitus.
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Affiliation(s)
- Huixia Niu
- Zhejiang Provincial Center for Disease Control and Prevention, 3399 Bin Sheng Road, Binjiang District, Hangzhou 310051, China; (H.N.); (P.T.); (X.L.); (M.X.); (Z.C.); (X.W.); (X.L.)
| | - Manjin Xu
- School of Public Health, Xiamen University, Xiang’an South Road, Xiang’an District, Xiamen 361102, China; (M.X.); (Y.X.)
| | - Pengcheng Tu
- Zhejiang Provincial Center for Disease Control and Prevention, 3399 Bin Sheng Road, Binjiang District, Hangzhou 310051, China; (H.N.); (P.T.); (X.L.); (M.X.); (Z.C.); (X.W.); (X.L.)
| | - Yunfeng Xu
- School of Public Health, Xiamen University, Xiang’an South Road, Xiang’an District, Xiamen 361102, China; (M.X.); (Y.X.)
| | - Xueqing Li
- Zhejiang Provincial Center for Disease Control and Prevention, 3399 Bin Sheng Road, Binjiang District, Hangzhou 310051, China; (H.N.); (P.T.); (X.L.); (M.X.); (Z.C.); (X.W.); (X.L.)
| | - Mingluan Xing
- Zhejiang Provincial Center for Disease Control and Prevention, 3399 Bin Sheng Road, Binjiang District, Hangzhou 310051, China; (H.N.); (P.T.); (X.L.); (M.X.); (Z.C.); (X.W.); (X.L.)
| | - Zhijian Chen
- Zhejiang Provincial Center for Disease Control and Prevention, 3399 Bin Sheng Road, Binjiang District, Hangzhou 310051, China; (H.N.); (P.T.); (X.L.); (M.X.); (Z.C.); (X.W.); (X.L.)
| | - Xiaofeng Wang
- Zhejiang Provincial Center for Disease Control and Prevention, 3399 Bin Sheng Road, Binjiang District, Hangzhou 310051, China; (H.N.); (P.T.); (X.L.); (M.X.); (Z.C.); (X.W.); (X.L.)
| | - Xiaoming Lou
- Zhejiang Provincial Center for Disease Control and Prevention, 3399 Bin Sheng Road, Binjiang District, Hangzhou 310051, China; (H.N.); (P.T.); (X.L.); (M.X.); (Z.C.); (X.W.); (X.L.)
| | - Lizhi Wu
- Zhejiang Provincial Center for Disease Control and Prevention, 3399 Bin Sheng Road, Binjiang District, Hangzhou 310051, China; (H.N.); (P.T.); (X.L.); (M.X.); (Z.C.); (X.W.); (X.L.)
| | - Shengzhi Sun
- School of Public Health, Capital Medical University, Beijing 100069, China
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Pyambri M, Lacorte S, Jaumot J, Bedia C. Effects of Indoor Dust Exposure on Lung Cells: Association of Chemical Composition with Phenotypic and Lipid Changes in a 3D Lung Cancer Cell Model. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2023; 57:20532-20541. [PMID: 38035630 PMCID: PMC10720387 DOI: 10.1021/acs.est.3c07573] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Revised: 11/15/2023] [Accepted: 11/16/2023] [Indexed: 12/02/2023]
Abstract
Indoor dust is a key contributor to the global human exposome in urban areas since the population develops most of its activities in private and public buildings. To gain insight into the health risks associated with this chronic exposure, it is necessary to characterize the chemical composition of dust and understand its biological impacts using reliable physiological models. The present study investigated the biological effects of chemically characterized indoor dust extracts using three-dimensional (3D) lung cancer cell cultures combining phenotypic and lipidomic analyses. Apart from the assessment of cell viability, reactive oxygen species (ROS) induction, and interleukin-8 release, lipidomics was applied to capture the main lipid changes induced as a cellular response to the extracted dust compounds. The application of chemometric tools enabled the finding of associations between chemical compounds present in dust and lipidic and phenotypic profiles in the cells. This study contributes to a better understanding of the toxicity mechanisms associated with exposure to chemical pollutants present in indoor dust.
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Affiliation(s)
- Maryam Pyambri
- Department of Environmental Chemistry, IDAEA-CSIC, Jordi Girona 18-26, 08034 Barcelona, Spain
| | - Sílvia Lacorte
- Department of Environmental Chemistry, IDAEA-CSIC, Jordi Girona 18-26, 08034 Barcelona, Spain
| | - Joaquim Jaumot
- Department of Environmental Chemistry, IDAEA-CSIC, Jordi Girona 18-26, 08034 Barcelona, Spain
| | - Carmen Bedia
- Department of Environmental Chemistry, IDAEA-CSIC, Jordi Girona 18-26, 08034 Barcelona, Spain
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Balcı Özyurt A, Erkekoğlu P, Zeybek ND, Aşcı A, Yaman Ü, Oflaz O, Kızılgün M, İşcan E, Batur T, Öztürk M, Koçer-Gümüşel B. Toxic effects of Aroclor 1254 on rat liver and modifying roles of selenium. INTERNATIONAL JOURNAL OF ENVIRONMENTAL HEALTH RESEARCH 2023; 33:1289-1304. [PMID: 37309736 DOI: 10.1080/09603123.2023.2223470] [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: 02/10/2023] [Accepted: 06/06/2023] [Indexed: 06/14/2023]
Abstract
Polychlorinated biphenyls (PCBs) were used in different industrial areas and banned due to their high toxicity. Aroclor 1254 (A1254), commercial PCB congener, accumulates in environment leading to high human exposure. A1254 may cause hepatotoxicity, metabolic and endocrine disorders. In our study, 3-week-old male rats were separated into 6 groups: C (0.15 mg/kg Se in diet); SeS (1 mg/kg Se in diet); SeD (0.05 mg/kg Se in diet); A1254 receiving groups (A; ASeS; ASeD) were given 10 mg/kg/day A1254 orally for last 15 days of feeding period with control, SeD or SeS diet, respectively, for 5 weeks. Histopathology, oxidant/antioxidant balance, apoptosis and cell cycle proteins (p53, p21) in liver were evaluated. Our results suggest that A1254 leads to changes in histology, oxidative stress and apoptosis. Selenium deficiency augments oxidative stress and apoptosis while selenium supplementation is partially protective. More mechanistic in vivo experiments are necessary for evaluation of hepatotoxicity of PCBs.
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Affiliation(s)
- Aylin Balcı Özyurt
- Department of Toxicology, Faculty of Pharmacy, Hacettepe University, Ankara, Turkey
- Department of Toxicology, School of Pharmacy, Bahçeşehir University, İ̇stanbul, Turkey
| | - Pınar Erkekoğlu
- Department of Toxicology, Faculty of Pharmacy, Hacettepe University, Ankara, Turkey
| | - Naciye Dilara Zeybek
- Department of Histology and Embryology, Faculty of Medicine, Hacettepe University, Ankara, Turkey
| | - Ali Aşcı
- Department of Toxicology, Faculty of Pharmacy, Selçuk University, Konya, Turkey
| | - Ünzile Yaman
- Department of Toxicology, Faculty of Pharmacy, Hacettepe University, Ankara, Turkey
- Department of Toxicology, Faculty of Pharmacy, İ̇zmir Katip Çelebi University, İ̇zmir, Turkey
| | - Ofcan Oflaz
- Department of Medical Biology, Faculty of Medicine, Lokman Hekim University, Ankara, Turkey
| | - Murat Kızılgün
- Gulhane Faculty of Medicine, University of Health Sciences, Ankara, Turkey
| | - Evin İşcan
- Izmir Biomedicine and Genome Center, Izmir, Turkey
- Izmir International Biomedicine and Genome Institute, Dokuz Eylül University, Izmir, Turkey
| | - Tuğçe Batur
- Izmir Biomedicine and Genome Center, Izmir, Turkey
- Izmir International Biomedicine and Genome Institute, Dokuz Eylül University, Izmir, Turkey
| | - Mehmet Öztürk
- Izmir International Biomedicine and Genome Institute, Dokuz Eylül University, Izmir, Turkey
- Galen Research Center, İ̇zmir Tinaztepe University, İ̇zmir, Turkey
| | - Belma Koçer-Gümüşel
- Department of Toxicology, Faculty of Pharmacy, Lokman Hekim University, Ankara, Turkey
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Ma J, Li Y, Qian L, Geng S, Yao X, Gao X, Yan Y, Wen J. Serum levels of polychlorinated biphenyls and polybrominated diphenyl ethers in early pregnancy and their associations with gestational diabetes mellitus. CHEMOSPHERE 2023; 339:139640. [PMID: 37499805 DOI: 10.1016/j.chemosphere.2023.139640] [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: 05/31/2023] [Revised: 07/21/2023] [Accepted: 07/22/2023] [Indexed: 07/29/2023]
Abstract
Polychlorinated Biphenyls (PCBs) and Polybrominated Diphenyl Ethers (PBDEs) are extensively present in humans and may disturb glucose metabolism during pregnancy. However, previous reports on the associations between PCBs/PBDEs levels and gestational diabetes mellitus (GDM) have been inconsistent. We performed a nested case-control study to measure the serum levels of 6 PCB and 7 PBDE congeners in early pregnancy, and to assess their associations with GDM risk and blood glucose levels. Totally, 208 serum samples (104 GDM cases and 104 controls) were included based on a prospective cohort which was carried out in Jiangsu province, China, from 2020 to 2022. The results showed that PCB-153 was the major PCB congener, whereas PBDE-47 was the predominant PBDE congener. The continuous concentrations of PCB-153, PBDE-28, and total PCB were significantly related to an increased risk of GDM, with adjusted ORs (95%CI) of 1.25 (1.04-1.50), 1.19 (1.02-1.39), and 1.37 (1.05-1.79), respectively. Potential dose-response relationships were also observed between serum levels of PCB-153 (P = 0.011), PBDE-28 (P = 0.028), total PCB (P = 0.048), and total PCB/PBDE (P = 0.010) and GDM risk. Moreover, PCB-153, PBDE-28 and total PCB levels were positively related to 1-h OGTT blood glucose (adjusted βPCB-153: 0.14, 95%CI: 0.00-0.28; adjusted βPBDE-28: 0.20, 95%CI: 0.08-0.32; adjusted βtotal PCB: 0.30, 95%CI: 0.09-0.50), whereas none of the PCBs/PBDEs were statistically related to fasting blood glucose and 2-h OGTT blood glucose (all P > 0.05). Further meta-analysis also supported the association of PCBs exposure with GDM risk. Our study provides further evidence that PCBs/PBDEs exposure may increase GDM risk during pregnancy.
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Affiliation(s)
- Jinqi Ma
- Department of Obstetrics and Gynecology, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi People's Hospital, Wuxi Medical Center, Nanjing Medical University, Wuxi, 214023, Jiangsu, China
| | - Ying Li
- Department of Obstetrics and Gynecology, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi People's Hospital, Wuxi Medical Center, Nanjing Medical University, Wuxi, 214023, Jiangsu, China
| | - Li Qian
- Department of Obstetrics and Gynecology, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi People's Hospital, Wuxi Medical Center, Nanjing Medical University, Wuxi, 214023, Jiangsu, China
| | - Shijie Geng
- Nanjing Maternity and Child Health Care Institute, Women's Hospital of Nanjing Medical University, Nanjing Maternity and Child Health Care Hospital, Nanjing, 210004, Jiangsu, China
| | - Xiaodie Yao
- Nanjing Maternity and Child Health Care Institute, Women's Hospital of Nanjing Medical University, Nanjing Maternity and Child Health Care Hospital, Nanjing, 210004, Jiangsu, China
| | - Xian Gao
- Department of Obstetrics and Gynecology, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi People's Hospital, Wuxi Medical Center, Nanjing Medical University, Wuxi, 214023, Jiangsu, China
| | - Yan Yan
- Department of Obstetrics and Gynecology, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi People's Hospital, Wuxi Medical Center, Nanjing Medical University, Wuxi, 214023, Jiangsu, China
| | - Juan Wen
- Nanjing Maternity and Child Health Care Institute, Women's Hospital of Nanjing Medical University, Nanjing Maternity and Child Health Care Hospital, Nanjing, 210004, Jiangsu, China.
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6
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Yao X, Geng S, Zhu L, Jiang H, Wen J. Environmental pollutants exposure and gestational diabetes mellitus: Evidence from epidemiological and experimental studies. CHEMOSPHERE 2023; 332:138866. [PMID: 37164202 DOI: 10.1016/j.chemosphere.2023.138866] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Revised: 04/05/2023] [Accepted: 05/05/2023] [Indexed: 05/12/2023]
Abstract
Except for known sociodemographic factors, long-term exposure to environmental pollutants has been shown to contribute to the development of gestational diabetes mellitus (GDM), but the conclusions remain controversial. To provide a comprehensive overview of the association between environmental pollutants and GDM, we performed a systematic review and meta-analysis. Several electronic databases (PubMed, Embase, Web of Science, Medline and Cochrane) were searched for related epidemiological and experimental studies up to September 2022. For epidemiological studies, a meta-analysis was carried out to appraise the effect of environmental pollutants, including polychlorinated biphenyls (PCBs), organochlorine pesticides (OCPs), per- and polyfluoroalkyl substances (PFASs), phenols, phthalates (PAEs), polybrominated diphenyl ethers (PBDEs) and parabens exposure on GDM. Moreover, we also summarized possible biological mechanisms linking pollution exposure and GDM based on the included experimental studies. A total of 80 articles were enrolled, including 38 epidemiological studies and 42 experimental studies. Meta-analysis results showed that exposure to PAEs [OR (95%CI) = 1.07 (1.00, 1.14)], PFASs [OR (95%CI) = 1.10 (1.01, 1.19)], as well as PCBs [OR (95%CI) = 1.18 (1.02, 1.36)] and PBDEs [OR (95%CI) = 1.33 (1.17, 1.50)] significantly increased the risk of GDM, but no significant effects were found for phenols, OCPs, and parabens. In addition, experimental studies suggested that the potential biological mechanisms of environmental pollutants contributing to GDM may involve insulin resistance, β-cell dysfunction, neurohormonal dysfunction, inflammation, oxidative stress, epigenetic modification, and alterations in gut microbiome. In conclusion, long-term environmental pollutants exposure may induce the development of GDM, and there may be a synergistic effect between the homologs. However, studies conducted on the direct biological link between environmental pollutants and GDM were few. More prospective studies and high-quality in vivo and in vitro experiments were needed to investigate the specific effects and mechanisms.
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Affiliation(s)
- Xiaodie Yao
- Nanjing Maternity and Child Health Care Institute, Women's Hospital of Nanjing Medical University, Nanjing Maternity and Child Health Care Hospital, Nanjing, Jiangsu, 210004, PR China
| | - Shijie Geng
- Nanjing Maternity and Child Health Care Institute, Women's Hospital of Nanjing Medical University, Nanjing Maternity and Child Health Care Hospital, Nanjing, Jiangsu, 210004, PR China
| | - Lijun Zhu
- Nanjing Maternity and Child Health Care Institute, Women's Hospital of Nanjing Medical University, Nanjing Maternity and Child Health Care Hospital, Nanjing, Jiangsu, 210004, PR China
| | - Hua Jiang
- Nanjing Maternity and Child Health Care Institute, Women's Hospital of Nanjing Medical University, Nanjing Maternity and Child Health Care Hospital, Nanjing, Jiangsu, 210004, PR China.
| | - Juan Wen
- Nanjing Maternity and Child Health Care Institute, Women's Hospital of Nanjing Medical University, Nanjing Maternity and Child Health Care Hospital, Nanjing, Jiangsu, 210004, PR China.
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Critical Overview on Endocrine Disruptors in Diabetes Mellitus. Int J Mol Sci 2023; 24:ijms24054537. [PMID: 36901966 PMCID: PMC10003192 DOI: 10.3390/ijms24054537] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2023] [Revised: 02/15/2023] [Accepted: 02/21/2023] [Indexed: 03/02/2023] Open
Abstract
Diabetes mellitus is a major public health problem in all countries due to its high human and economic burden. Major metabolic alterations are associated with the chronic hyperglycemia that characterizes diabetes and causes devastating complications, including retinopathy, kidney failure, coronary disease and increased cardiovascular mortality. The most common form is type 2 diabetes (T2D) accounting for 90 to 95% of the cases. These chronic metabolic disorders are heterogeneous to which genetic factors contribute, but so do prenatal and postnatal life environmental factors including a sedentary lifestyle, overweight, and obesity. However, these classical risk factors alone cannot explain the rapid evolution of the prevalence of T2D and the high prevalence of type 1 diabetes in particular areas. Among environmental factors, we are in fact exposed to a growing amount of chemical molecules produced by our industries or by our way of life. In this narrative review, we aim to give a critical overview of the role of these pollutants that can interfere with our endocrine system, the so-called endocrine-disrupting chemicals (EDCs), in the pathophysiology of diabetes and metabolic disorders.
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Hoyeck MP, Matteo G, MacFarlane EM, Perera I, Bruin JE. Persistent organic pollutants and β-cell toxicity: a comprehensive review. Am J Physiol Endocrinol Metab 2022; 322:E383-E413. [PMID: 35156417 PMCID: PMC9394781 DOI: 10.1152/ajpendo.00358.2021] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/09/2021] [Revised: 12/20/2021] [Accepted: 02/07/2022] [Indexed: 01/09/2023]
Abstract
Persistent organic pollutants (POPs) are a diverse family of contaminants that show widespread global dispersion and bioaccumulation. Humans are continuously exposed to POPs through diet, air particles, and household and commercial products; POPs are consistently detected in human tissues, including the pancreas. Epidemiological studies show a modest but consistent correlation between exposure to POPs and increased diabetes risk. The goal of this review is to provide an overview of epidemiological evidence and an in-depth evaluation of the in vivo and in vitro evidence that POPs cause β-cell toxicity. We review evidence for six classes of POPs: dioxins, polychlorinated biphenyls (PCBs), organochlorine pesticides (OCPs), organophosphate pesticides (OPPs), flame retardants, and per- and polyfluoroalkyl substances (PFAS). The available data provide convincing evidence implicating POPs as a contributing factor driving impaired glucose homeostasis, β-cell dysfunction, and altered metabolic and oxidative stress pathways in islets. These findings support epidemiological data showing that POPs increase diabetes risk and emphasize the need to consider the endocrine pancreas in toxicity assessments. Our review also highlights significant gaps in the literature assessing islet-specific endpoints after both in vivo and in vitro POP exposure. In addition, most rodent studies do not consider the impact of biological sex or secondary metabolic stressors in mediating the effects of POPs on glucose homeostasis and β-cell function. We discuss key gaps and limitations that should be assessed in future studies.
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Affiliation(s)
- Myriam P Hoyeck
- Department of Biology and Institute of Biochemistry, Carleton University, Ottawa, Ontario, Canada
| | - Geronimo Matteo
- Department of Biology and Institute of Biochemistry, Carleton University, Ottawa, Ontario, Canada
- Department of Biology, University of Ottawa, Ottawa, Ontario, Canada
- Environmental Health Science and Research Bureau, Health Canada, Ottawa, Ontario, Canada
| | - Erin M MacFarlane
- Department of Biology and Institute of Biochemistry, Carleton University, Ottawa, Ontario, Canada
| | - Ineli Perera
- Department of Biology and Institute of Biochemistry, Carleton University, Ottawa, Ontario, Canada
| | - Jennifer E Bruin
- Department of Biology and Institute of Biochemistry, Carleton University, Ottawa, Ontario, Canada
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Mehta SS, James-Todd T, Applebaum KM, Bellavia A, Coleman-Phox K, Adler N, Laraia B, Epel E, Parry E, Wang M, Park JS, Zota AR. Persistent organic pollutants and maternal glycemic outcomes in a diverse pregnancy cohort of overweight women. ENVIRONMENTAL RESEARCH 2021; 193:110551. [PMID: 33278474 PMCID: PMC7855882 DOI: 10.1016/j.envres.2020.110551] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/14/2020] [Revised: 11/11/2020] [Accepted: 11/24/2020] [Indexed: 05/15/2023]
Abstract
BACKGROUND Animal and human studies suggest certain persistent organic pollutants (POPs) may impact glucose metabolism; however, few epidemiologic studies have examined environmental determinants of glycemic outcomes during pregnancy. Our objective is to evaluate associations between exposures to individual and mixture of POPs and measures of prenatal fasting glucose, insulin, and insulin resistance during pregnancy in overweight women. METHODS A cohort of overweight and obese pregnant women (N = 95) was recruited from California. Blood samples were collected during late first or second trimester (median = 16 weeks' gestation; range = 10-24 weeks). Exposures included serum concentrations of polybrominated diphenyl ethers (PBDEs) and hydroxylated metabolites (OH-PBDEs), polychlorinated biphenyls (PCBs), and poly- and perfluoroalkyl substances (PFASs). Outcomes included serum concentrations of fasting plasma glucose, fasting plasma insulin, and calculated homeostatic model assessment of insulin resistance (HOMA-IR). Generalized linear models were used to evaluate cross-sectional associations between individual and aggregate POPs and mean percent difference in fasting glucose, fasting insulin, and HOMA-IR. Bayesian kernel machine regression (BKMR) was used to assess the relative importance of each exposure to the association with our outcomes, using conditional and group posterior inclusion probabilities (PIPs). RESULTS Study participants were racially/ethnically diverse and nearly half were below the federal poverty level. Across PBDEs and OH-PBDEs, the direction of associations with fasting glucose, fasting insulin and HOMA-IR were varied. A doubling of PCB-138, PCB-153, PCB-180, and ∑PCBs concentrations was associated with a 2.10% mmol/L (95%CI: 0.49%, 3.74%), 2.10% mmol/L (95%CI: -0.14%, 4.39%), 2.10% mmol/L (95%CI: 0.12%, 4.12%), and 2.81% mmol/L (95%CI: 0.38%, 5.31%) increase in fasting glucose, respectively. Exposure to individual PCBs was positively associated with both fasting insulin and HOMA-IR. All PFAS were inversely associated with fasting glucose, fasting insulin, and HOMA-IR. In BKMR models of fasting glucose, all four chemical classes were important contributors to the overall mixture, with PFASs identified as the most important contributor. DISCUSSION Prenatal PCB exposure was positively associated while certain PBDE and PFAS analytes were inversely associated with fasting glucose concentrations in overweight women. Further examination of the relationship between POPs exposure and glycemic functioning in a larger study population of women during pregnancy is warranted.
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Affiliation(s)
- Suril S Mehta
- Department of Environmental and Occupational Health, Milken Institute School of Public Health, The George Washington University, Washington, DC, USA.
| | - Tamarra James-Todd
- Department of Environmental Health, T.H. Chan School of Public Health, Harvard University, Boston, MA, USA; Department of Epidemiology, T.H. Chan School of Public Health, Harvard University, Boston, MA, USA
| | - Katie M Applebaum
- Department of Environmental and Occupational Health, Milken Institute School of Public Health, The George Washington University, Washington, DC, USA
| | - Andrea Bellavia
- Department of Environmental Health, T.H. Chan School of Public Health, Harvard University, Boston, MA, USA
| | - Kimberly Coleman-Phox
- Center for Health and Community, School of Medicine, University of California, San Francisco, San Francisco, CA, USA
| | - Nancy Adler
- Department of Psychiatry, School of Medicine, University of California, San Francisco, San Francisco, CA, USA
| | - Barbara Laraia
- Division of Community Health and Human Development, School of Public Health, University of California, Berkeley, Berkeley, CA, USA
| | - Elissa Epel
- Department of Psychiatry, School of Medicine, University of California, San Francisco, San Francisco, CA, USA
| | - Emily Parry
- Environmental Chemistry Laboratory, California Department of Toxic Substances Control, Berkeley, CA, USA
| | - Miaomiao Wang
- Environmental Chemistry Laboratory, California Department of Toxic Substances Control, Berkeley, CA, USA
| | - June-Soo Park
- Environmental Chemistry Laboratory, California Department of Toxic Substances Control, Berkeley, CA, USA
| | - Ami R Zota
- Department of Environmental and Occupational Health, Milken Institute School of Public Health, The George Washington University, Washington, DC, USA
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10
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Caron A, Ahmed F, Peshdary V, Garneau L, Atlas E, Aguer C. Effects of PCB126 on Adipose-to-Muscle Communication in an in Vitro Model. ENVIRONMENTAL HEALTH PERSPECTIVES 2020; 128:107002. [PMID: 33026256 PMCID: PMC7539676 DOI: 10.1289/ehp7058] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
BACKGROUND Exposure to coplanar polychlorinated biphenyls (PCBs) is linked to the development of insulin resistance. Previous studies suggested PCB126 alters muscle mitochondrial function through an indirect mechanism. Given that PCBs are stored in fat, we hypothesized that PCB126 alters adipokine secretion, which in turn affects muscle metabolism. OBJECTIVES We determined a) the impacts of PCB126 exposure on adipocyte cytokine/adipokine secretion in vitro; b) whether adipocyte-derived factors alter glucose metabolism and mitochondrial function in myotubes when exposed to PCB126; and c) whether preestablished insulin resistance alters the metabolic responses of adipocytes exposed to PCB126 and the communication between adipocytes and myotubes. METHODS 3T3-L1 adipocytes were exposed to PCB126 (1-100 nM) in two insulin sensitivity conditions [insulin sensitive (IS) and insulin resistant (IR) adipocytes], followed by the measurement of secreted adipokines, mitochondrial function, and insulin-stimulated glucose uptake. Communication between adipocytes and myotubes was reproduced by exposing C2C12 myotubes or mouse primary myotubes to conditioned medium (CM) derived from IS or IR 3T3-L1 adipocytes exposed to PCB126. Mitochondrial function and insulin-stimulated glucose uptake were then determined in myotubes. RESULTS IR 3T3-L1 adipocytes treated with PCB126 had significantly higher adipokine (adiponectin, IL-6, MCP-1, TNF-α) secretion and lower mitochondrial function, glucose uptake, and glycolysis. However, PCB126 did not significantly alter these parameters in IS adipocytes. Altered energy metabolism in IR 3T3-L1 adipocytes was linked to lower phosphorylation of AMP-activated protein kinase (p-AMPK) and higher superoxide dismutase 2 levels, an enzyme involved in reactive oxygen species detoxification. Myotubes exposed to the CM from PCB126-treated IR adipocytes had lower glucose uptake, with no alteration in glycolysis or mitochondrial function. Interestingly, p-AMPK levels were higher in myotubes exposed to the CM of PCB126-treated IR adipocytes. DISCUSSION Taken together, these data suggest that increased adipokine secretion from IR adipocytes exposed to PCB126 might explain impaired glucose uptake in myotubes. https://doi.org/10.1289/EHP7058.
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Affiliation(s)
- Audrey Caron
- Institut du Savoir Montfort—recherche, Ottawa, Ontario, Canada
- Department of Biochemistry, Microbiology and Immunology, Faculty of Medicine, University of Ottawa, Ottawa, Ontario, Canada
| | - Fozia Ahmed
- Institut du Savoir Montfort—recherche, Ottawa, Ontario, Canada
- Department of Biochemistry, Microbiology and Immunology, Faculty of Medicine, University of Ottawa, Ottawa, Ontario, Canada
| | - Vian Peshdary
- Department of Biochemistry, Microbiology and Immunology, Faculty of Medicine, University of Ottawa, Ottawa, Ontario, Canada
- Environmental Health Science and Research Bureau, Health Canada, Ottawa, Ontario, Canada
| | - Léa Garneau
- Institut du Savoir Montfort—recherche, Ottawa, Ontario, Canada
- Department of Biochemistry, Microbiology and Immunology, Faculty of Medicine, University of Ottawa, Ottawa, Ontario, Canada
| | - Ella Atlas
- Department of Biochemistry, Microbiology and Immunology, Faculty of Medicine, University of Ottawa, Ottawa, Ontario, Canada
- Environmental Health Science and Research Bureau, Health Canada, Ottawa, Ontario, Canada
| | - Céline Aguer
- Institut du Savoir Montfort—recherche, Ottawa, Ontario, Canada
- Department of Biochemistry, Microbiology and Immunology, Faculty of Medicine, University of Ottawa, Ottawa, Ontario, Canada
- School of Human Kinetics, Faculty of Health Sciences, University of Ottawa, Ottawa, Ontario, Canada
- Interdisciplinary School of Health Sciences, Faculty of Health Sciences, University of Ottawa, Ottawa, Ontario, Canada
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11
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Peshdary V, Styles G, Rigden M, Caldwell D, Kawata A, Sorisky A, Atlas E. Exposure to Low Doses of Dechlorane Plus Promotes Adipose Tissue Dysfunction and Glucose Intolerance in Male Mice. Endocrinology 2020; 161:5859548. [PMID: 32556108 DOI: 10.1210/endocr/bqaa096] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/23/2020] [Accepted: 06/18/2020] [Indexed: 12/24/2022]
Abstract
The prevalence of type 2 diabetes (T2D) continues to increase worldwide. It is well established that genetic susceptibility, obesity, overnutrition and a sedentary life style are risk factors for the development of T2D. However, more recently, studies have also proposed links between exposure to endocrine-disrupting chemicals (EDCs) and altered glucose metabolism. Human exposure to environmental pollutants that are suspected to have endocrine disruptor activity is ubiquitous. One such chemical is Dechlorane Plus (DP), a flame retardant, that is now detected in humans and the environment. Here we show that exposure of mice to low, environmentally relevant doses of DP promoted glucose intolerance in mice fed a high-fat diet independent of weight gain. Furthermore, DP had pronounced effects on the adipose tissue, where it induced the development of hypertrophied white adipose tissue (WAT), and increased serum levels of resistin, leptin, and plasminogen activator inhibitor-1. In addition, DP exposure induced "whitening" of brown adipose tissue (BAT), and reduced BAT uncoupling protein 1 expression. Importantly, some of these effects occurred even when the mice were fed a regular, low-fat, diet. Finally, WAT adipogenic markers were reduced with DP treatment in the WAT. We also show that DP directly inhibited insulin signaling in murine adipocytes and human primary subcutaneous adipocytes in vitro. Taken together, our results show that the exposure to low and environmentally relevant levels of DP may contribute to the development of T2D.
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Affiliation(s)
- Vian Peshdary
- Environmental Health Science and Research Bureau, Health Canada, 50 Colombine Driveway, Ottawa, Canada
- Departments of Medicine and of Biochemistry, Microbiology, and Immunology, University of Ottawa, Ottawa, Canada
| | - George Styles
- Environmental Health Science and Research Bureau, Health Canada, 50 Colombine Driveway, Ottawa, Canada
| | - Marc Rigden
- Environmental Health Science and Research Bureau, Health Canada, 50 Colombine Driveway, Ottawa, Canada
| | - Don Caldwell
- Scientific Services Division, Health Products and Foods Branch, Health Canada, Ottawa, Ontario, Canada
| | - Alice Kawata
- Environmental Health Science and Research Bureau, Health Canada, 50 Colombine Driveway, Ottawa, Canada
| | - Alexander Sorisky
- Departments of Medicine and of Biochemistry, Microbiology, and Immunology, University of Ottawa, Ottawa, Canada
- Chronic Disease Program, Ottawa Hospital Research Institute, Ottawa, Canada
| | - Ella Atlas
- Environmental Health Science and Research Bureau, Health Canada, 50 Colombine Driveway, Ottawa, Canada
- Departments of Medicine and of Biochemistry, Microbiology, and Immunology, University of Ottawa, Ottawa, Canada
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12
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Su H, Liu J, Wu G, Long Z, Fan J, Xu Z, Liu J, Yu Z, Cao M, Liao N, Peng J, Yu W, Li W, Wu H, Wang X. Homeostasis of gut microbiota protects against polychlorinated biphenyl 126-induced metabolic dysfunction in liver of mice. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 720:137597. [PMID: 32143051 DOI: 10.1016/j.scitotenv.2020.137597] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2019] [Revised: 02/23/2020] [Accepted: 02/25/2020] [Indexed: 06/10/2023]
Abstract
Polychlorinated biphenyls (PCBs) exposure is closely associated with the prevalence of metabolic diseases, including fatty liver and dyslipidemia. Emerging literature suggests that disturbance of gut microbiota is related to PCB126-induced metabolic disorders. However, the causal role of dysbiosis in PCB126-induced fatty liver is still unknown. To clarify the role of the gut microbiome in the detoxification of PCB126 in intestine or PCB126-induced toxicity in liver, mice were administrated with drinking water containing antibiotics (ampicillin, vancomycin, neomycin, and metronidazole) or Inulin. We showed that PCB126 resulted in significant hepatic lipid accumulation, inflammation, and fibrosis. PCB126, Antibiotics, and Inulin significantly affected the structure and shifted community membership of gut microbiome. 7 KEGG (Kyoto Encyclopedia of Genes and Genomes) pathways at level 2 and 39 KEGG pathways at level 3 were significantly affected. Antibiotics alleviated PCB126-induced fibrosis in the liver but increased inflammation. Inulin treatment ameliorated both inflammation and fibrosis in the liver of PCB126-treated mice. Neither Antibiotics nor Inulin had significant effect on PCB126-induced hepatic steatosis. The more specific intervention of gut microbiota is needed to alleviate PCB126-induced fatty liver. These data demonstrate that homeostasis of gut microbiota is critical for the defense against PCB126 toxicity and dysbiosis plays a fundamental role in the development of inflammation and fibrosis in liver of PCB126-treated mice.
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Affiliation(s)
- Hongfei Su
- Department of Toxicology, Shaanxi Key Lab of Free Radical Biology and Medicine, the Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, School of Public Health, Air Force Medical University (Fourth Military Medical University), Xi'an 710032, China
| | - Jiangzheng Liu
- Department of Toxicology, Shaanxi Key Lab of Free Radical Biology and Medicine, the Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, School of Public Health, Air Force Medical University (Fourth Military Medical University), Xi'an 710032, China
| | - Guangyuan Wu
- Department of Toxicology, Shaanxi Key Lab of Free Radical Biology and Medicine, the Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, School of Public Health, Air Force Medical University (Fourth Military Medical University), Xi'an 710032, China
| | - Zi Long
- Department of Toxicology, Shaanxi Key Lab of Free Radical Biology and Medicine, the Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, School of Public Health, Air Force Medical University (Fourth Military Medical University), Xi'an 710032, China
| | - Junshu Fan
- Department of Toxicology, Shaanxi Key Lab of Free Radical Biology and Medicine, the Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, School of Public Health, Air Force Medical University (Fourth Military Medical University), Xi'an 710032, China
| | - Zhongrui Xu
- Department of Toxicology, Shaanxi Key Lab of Free Radical Biology and Medicine, the Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, School of Public Health, Air Force Medical University (Fourth Military Medical University), Xi'an 710032, China
| | - Jiawei Liu
- Department of Toxicology, Shaanxi Key Lab of Free Radical Biology and Medicine, the Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, School of Public Health, Air Force Medical University (Fourth Military Medical University), Xi'an 710032, China
| | - Zhongtian Yu
- Department of Toxicology, Shaanxi Key Lab of Free Radical Biology and Medicine, the Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, School of Public Health, Air Force Medical University (Fourth Military Medical University), Xi'an 710032, China
| | - Meng Cao
- Department of Toxicology, Shaanxi Key Lab of Free Radical Biology and Medicine, the Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, School of Public Health, Air Force Medical University (Fourth Military Medical University), Xi'an 710032, China
| | - Nai Liao
- Department of Toxicology, Shaanxi Key Lab of Free Radical Biology and Medicine, the Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, School of Public Health, Air Force Medical University (Fourth Military Medical University), Xi'an 710032, China
| | - Jie Peng
- Department of Toxicology, Shaanxi Key Lab of Free Radical Biology and Medicine, the Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, School of Public Health, Air Force Medical University (Fourth Military Medical University), Xi'an 710032, China
| | - Weihua Yu
- Department of Toxicology, Shaanxi Key Lab of Free Radical Biology and Medicine, the Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, School of Public Health, Air Force Medical University (Fourth Military Medical University), Xi'an 710032, China
| | - Wenli Li
- Department of Toxicology, Shaanxi Key Lab of Free Radical Biology and Medicine, the Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, School of Public Health, Air Force Medical University (Fourth Military Medical University), Xi'an 710032, China
| | - Hao Wu
- Department of Toxicology, Shaanxi Key Lab of Free Radical Biology and Medicine, the Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, School of Public Health, Air Force Medical University (Fourth Military Medical University), Xi'an 710032, China.
| | - Xin Wang
- Department of Toxicology, Shaanxi Key Lab of Free Radical Biology and Medicine, the Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, School of Public Health, Air Force Medical University (Fourth Military Medical University), Xi'an 710032, China.
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13
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Rotondo E, Chiarelli F. Endocrine-Disrupting Chemicals and Insulin Resistance in Children. Biomedicines 2020; 8:E137. [PMID: 32481506 PMCID: PMC7344713 DOI: 10.3390/biomedicines8060137] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Revised: 05/24/2020] [Accepted: 05/25/2020] [Indexed: 12/25/2022] Open
Abstract
The purpose of this article is to review the evidence linking background exposure to endocrine-disrupting chemicals (EDCs) with insulin resistance in children. Although evidence in children is scarce since very few prospective studies exist even in adults, evidence that EDCs might be involved in the development of insulin resistance and related diseases such as obesity and diabetes is accumulating. We reviewed the literature on both cross-sectional and prospective studies in humans and experimental studies. Epidemiological studies show a statistical link between exposure to pesticides, polychlorinated bisphenyls, bisphenol A, phthalates, aromatic polycyclic hydrocarbides, or dioxins and insulin resistance.
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Affiliation(s)
- Eleonora Rotondo
- Department of Pediatrics, University of Chieti, I-66100 Chieti, Italy;
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14
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Fang L, Zhang S, Ou K, Zuo Z, Yu A, Wang C. Exposure to Aroclor 1254 differentially affects the survival of pancreatic β-cells and α-cells in the male mice and the potential reason. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2020; 188:109875. [PMID: 31706244 DOI: 10.1016/j.ecoenv.2019.109875] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2019] [Revised: 10/21/2019] [Accepted: 10/25/2019] [Indexed: 06/10/2023]
Abstract
Previous works showed that chronic exposure to Aroclor 1254 disrupted glucose homeostasis and induced insulin resistance in male mice. To further observe the different effects of Aroclor 1254 exposure on the pancreatic α-cells and β-cells, male mice were exposed to Aroclor 1254 (0, 0.5, 5, 50, 500 μg/kg) for 60 days, the pancreas was performed a histological examination. The results showed that the percentage of apoptosis cell (indicated by TUNEL assay) was increased in both α-cells and β-cells, as the Aroclor 1254 dose was increased; the proliferation (indicated by PCNA expression) rate of β-cells was elevated while that of α-cells was not affected, resulting in an increased β-cell mass and a decreased α-cell mass in a dose-depend manner. The number of Pdx-1 positive β-cells was significantly increased whereas that of Arx positive α-cells was markedly decreased, indicating an enhanced β-cell neogenesis and a weakened α-cell neogenesis. The drastically reduction of serum testosterone levels in all the treatments suggested an anti-androgenic potency of Aroclor 1254. The up-regulation of estrogen receptors (ERα and ERβ) and androgen receptor in β-cells might be responsible for the increased β-cell mass and neogenesis.
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Affiliation(s)
- Lu Fang
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Xiamen, PR China
| | - Shiqi Zhang
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Xiamen, PR China
| | - Kunlin Ou
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Xiamen, PR China
| | - Zhenghong Zuo
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Xiamen, PR China
| | - Ang Yu
- Key Laboratory of Ministry of Education for Subtropical Wetland Ecosystem Research, Xiamen University, Xiamen, PR China.
| | - Chonggang Wang
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Xiamen, PR China.
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15
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Sargis RM, Simmons RA. Environmental neglect: endocrine disruptors as underappreciated but potentially modifiable diabetes risk factors. Diabetologia 2019; 62:1811-1822. [PMID: 31451869 PMCID: PMC7462102 DOI: 10.1007/s00125-019-4940-z] [Citation(s) in RCA: 71] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/15/2019] [Accepted: 05/14/2019] [Indexed: 12/18/2022]
Abstract
Type 2 diabetes prevalence is increasing dramatically across the globe, imposing a tremendous toll on individuals and healthcare systems. Reversing these trends requires comprehensive approaches to address both classical and emerging diabetes risk factors. Recently, environmental toxicants acting as endocrine-disrupting chemicals (EDCs) have emerged as novel metabolic disease risk factors. EDCs implicated in diabetes pathogenesis include various inorganic and organic molecules of both natural and synthetic origin, including arsenic, bisphenol A, phthalates, polychlorinated biphenyls and organochlorine pesticides. Indeed, evidence implicates EDC exposures across the lifespan in metabolic dysfunction; moreover, specific developmental windows exhibit enhanced sensitivity to EDC-induced metabolic disruption, with potential impacts across generations. Importantly, differential exposures to diabetogenic EDCs likely also contribute to racial/ethnic and economic disparities. Despite these emerging links, clinical practice guidelines fail to address this underappreciated diabetes risk factor. Comprehensive approaches to stem the tide of diabetes must include efforts to address its environmental drivers.
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Affiliation(s)
- Robert M Sargis
- Division of Endocrinology, Diabetes, and Metabolism Department of Medicine, University of Illinois at Chicago, 835 S. Wolcott, Suite E625; M/C 640, Chicago, IL, 60612, USA.
- ChicAgo Center for Health and EnvironmenT (CACHET), University of Illinois at Chicago, Chicago, IL, USA.
| | - Rebecca A Simmons
- Division of Neonatology, Children's Hospital of Philadelphia, Philadelphia, PA, USA
- Center for Research on Reproduction and Women's Health, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
- Center of Excellence in Environmental Toxicology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
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16
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Shmarakov IO, Lee YJ, Jiang H, Blaner WS. Constitutive androstane receptor mediates PCB-induced disruption of retinoid homeostasis. Toxicol Appl Pharmacol 2019; 381:114731. [PMID: 31449830 DOI: 10.1016/j.taap.2019.114731] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2019] [Revised: 08/06/2019] [Accepted: 08/21/2019] [Indexed: 11/18/2022]
Abstract
Environmental exposure to polychlorinated biphenyls (PCBs) is associated with an increased risk of incidence of metabolic disease, however the molecular mechanisms underlying this phenomenon are not fully understood. Our study provides new insights into molecular interactions between PCBs and retinoids (vitamin A and its metabolites) by defining a role for constitutive androstane receptor (CAR) in the disruption of retinoid homeostasis by non-coplanar 2,2',4,4',5,5'-hexachlorobiphenyl (PCB153). Administration of four weekly 50 mg/kg doses of PCB153 to C57BL/6 male mice resulted in a significant decline in the tissue concentrations of retinyl esters, retinol and all-trans-retinoic acid (atRA), while no decline in hepatic and adipose tissue retinoid levels were detected in Car-null littermates. Our data imply that disrupted retinoid homeostasis occurs as a consequence of PCB153-induced activation of CAR, and raise the possibility that CAR signaling can affect atRA homeostasis in vivo. A strong correlation between the changes in retinoid metabolism and extensive upregulation of hepatic CAR-driven Cyp2b10 expression implicates this CYP isoform as contributing to retinoid homeostasis disruption via atRA oxidation during PCB153 exposure. In response to PCB153-induced CAR activation and disruption of retinoid homeostasis, expression of hepatic Pepck, Cd36 and adipose tissue Pparγ, Cd36, Adipoq, and Rbp4 were altered; however, this was reversed by administration of exogenous dietary retinoids (300 IU daily for 4 weeks). Our study establishes that PCB153 exposure enables a significant disruption of retinoid homeostasis in a CAR-dependent manner. We propose that this contributes to the obesogenic properties of PCB153 and may contribute to the predisposition to the metabolic disease.
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Affiliation(s)
- Igor O Shmarakov
- Department of Medicine, Vagelos College of Physicians and Surgeons, Columbia University, 630 West 168th Street, New York, NY 10032, USA.
| | - Yun Jee Lee
- Department of Medicine, Vagelos College of Physicians and Surgeons, Columbia University, 630 West 168th Street, New York, NY 10032, USA
| | - Hongfeng Jiang
- Department of Medicine, Vagelos College of Physicians and Surgeons, Columbia University, 630 West 168th Street, New York, NY 10032, USA
| | - William S Blaner
- Department of Medicine, Vagelos College of Physicians and Surgeons, Columbia University, 630 West 168th Street, New York, NY 10032, USA
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17
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Shen X, Chen Y, Zhang J, Yan X, Liu W, Guo Y, Shan Q, Liu S. Low-dose PCB126 compromises circadian rhythms associated with disordered glucose and lipid metabolism in mice. ENVIRONMENT INTERNATIONAL 2019; 128:146-157. [PMID: 31055201 DOI: 10.1016/j.envint.2019.04.058] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2019] [Revised: 04/25/2019] [Accepted: 04/25/2019] [Indexed: 06/09/2023]
Abstract
It has been documented that 3, 3', 4, 4', 5-pentachlorobiphenyl (PCB126) elicits diverse detrimental effects on human health including metabolic syndrome and non-alcoholic fatty-liver disease (NAFLD), through a wide array of non-carcinogenic mechanisms, which require further detailed investigations. The circadian clock system consists of central clock machinery (located in the suprachiasmatic nucleus in the hypothalamus) and the peripheral clocks (located in nearly all peripheral tissues). Peripheral clocks in the liver play fundamental roles in maintaining liver homeostasis, including the regulation of energy metabolism and the expression of enzymes that fine-tune the absorption and metabolism of xenobiotics. However, the molecular basis of whether PCB126 disrupts liver homeostasis (e.g., glucose and lipid metabolism) by dysregulating the circadian clock system is still unknown. Thus, we performed a set of comprehensive analyses of glucose and lipid metabolism in the liver tissues from low-dose PCB126-treated mice. Our results demonstrated that PCB126 diminished glucose and cholesterol levels in serum and elevated glucose and cholesterol levels in the liver. Moreover, PCB126 compromised PGC1α and PDHE1α, which are the driving force for mitochondrial biogenesis and entry of pyruvate into the tricarboxylic acid (TCA) cycle, respectively, and resulted in the accumulation of glucose, glycogen and pyruvate in the liver after PCB126 exposure. Additionally, PCB126 blocked hepatic cholesterol metabolism and export pathways, leading to an elevated localization of hepatic cholesterol. Mechanistic investigations illustrated that PCB126 greatly altered the expression profile of core clock genes and their target rhythm genes involved in orchestrating glucose and cholesterol metabolism. Together, our results demonstrated that a close correlation between PCB126-disturbed glucose and lipid metabolism and disordered physiological oscillation of circadian genes.
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Affiliation(s)
- Xinming Shen
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing, China
| | - Yongjiu Chen
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing, China
| | - Jie Zhang
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing, China
| | - Xu Yan
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing, China
| | - Wei Liu
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing, China
| | - Yifan Guo
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Qiuli Shan
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Sijin Liu
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing, China.
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Xi Z, Fang L, Xu J, Li B, Zuo Z, Lv L, Wang C. Exposure to Aroclor 1254 persistently suppresses the functions of pancreatic β-cells and deteriorates glucose homeostasis in male mice. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2019; 249:822-830. [PMID: 30953944 DOI: 10.1016/j.envpol.2019.03.101] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2018] [Revised: 03/20/2019] [Accepted: 03/25/2019] [Indexed: 05/12/2023]
Abstract
Polychlorinated biphenyls (PCBs) are a class of persistent organic pollutants that have been shown to be related to the occurrence of type 2 diabetes mellitus (T2DM). Nevertheless, it is necessary to further explore the development of T2DM caused by PCBs and its underlying mechanisms. In the present study, 21-day-old C57BL/6 male mice were orally treated with Aroclor 1254 (0.5, 5, 50 or 500 μg kg-1) once every three days. After exposure for 66 d, the mice showed impaired glucose tolerance, 13% and 14% increased fasting serum insulin levels (FSIL), and 63% and 69% increases of the pancreatic β-cell mass in the 50 and 500 μg kg-1 groups, respectively. After stopping exposure for 90 d, treated mice returned to normoglycemia and normal FSIL. After re-exposure of these recovered mice to Aroclor 1254 for 30 d, fasting plasma glucose showed 15%, 28% and 16% increase in the 5, 50 and 500 μg kg-1 treatments, FSIL exhibited 35%, 27%, 30% and 32% decrease in the 0.5, 5, 50 or 500 μg kg-1 groups respectively, and there was no change in pancreatic β-cell mass. Transcription of the pancreatic insulin gene (Ins2) was significantly down-regulated in the 50 and 500 μg kg-1 groups, while DNA-methylation levels were simultaneously increased in the Ins2 promoter during the course of exposure, recovery and re-exposure. Reduced insulin levels were initially rescued by a compensative increase in β-cell mass. However, β-cell mass eventually failed to make sufficient levels of insulin, resulting in significant increases in fasting blood glucose, and indicating the development of T2DM.
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Affiliation(s)
- Zhihui Xi
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Xiamen, PR China
| | - Lu Fang
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Xiamen, PR China
| | - Jing Xu
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Xiamen, PR China
| | - Bingshui Li
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Xiamen, PR China
| | - Zhenghong Zuo
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Xiamen, PR China
| | - Liangju Lv
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Xiamen, PR China
| | - Chonggang Wang
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Xiamen, PR China.
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19
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Kassotis CD, Stapleton HM. Endocrine-Mediated Mechanisms of Metabolic Disruption and New Approaches to Examine the Public Health Threat. Front Endocrinol (Lausanne) 2019; 10:39. [PMID: 30792693 PMCID: PMC6374316 DOI: 10.3389/fendo.2019.00039] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/28/2018] [Accepted: 01/17/2019] [Indexed: 01/29/2023] Open
Abstract
Obesity and metabolic disorders are of great societal concern and generate substantial human health care costs globally. Interventions have resulted in only minimal impacts on disrupting this worsening health trend, increasing attention on putative environmental contributors. Exposure to numerous environmental contaminants have, over decades, been demonstrated to result in increased metabolic dysfunction and/or weight gain in cell and animal models, and in some cases, even in humans. There are numerous mechanisms through which environmental contaminants may contribute to metabolic dysfunction, though certain mechanisms, such as activation of the peroxisome proliferator activated receptor gamma or the retinoid x receptor, have received considerably more attention than less-studied mechanisms such as antagonism of the thyroid receptor, androgen receptor, or mitochondrial toxicity. As such, research on putative metabolic disruptors is growing rapidly, as is our understanding of molecular mechanisms underlying these effects. Concurrent with these advances, new research has evaluated current models of adipogenesis, and new models have been proposed. Only in the last several years have studies really begun to address complex mixtures of contaminants and how these mixtures may disrupt metabolic health in environmentally relevant exposure scenarios. Several studies have begun to assess environmental mixtures from various environments and study the mechanisms underlying their putative metabolic dysfunction; these studies hold real promise in highlighting crucial mechanisms driving observed organismal effects. In addition, high-throughput toxicity databases (ToxCast, etc.) may provide future benefits in prioritizing chemicals for in vivo testing, particularly once the causative molecular mechanisms promoting dysfunction are better understood and expert critiques are used to hone the databases. In this review, we will review the available literature linking metabolic disruption to endocrine-mediated molecular mechanisms, discuss the novel application of environmental mixtures and implications for in vivo metabolic health, and discuss the putative utility of applying high-throughput toxicity databases to answering complex organismal health outcome questions.
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Kim YA, Park JB, Woo MS, Lee SY, Kim HY, Yoo YH. Persistent Organic Pollutant-Mediated Insulin Resistance. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2019; 16:E448. [PMID: 30717446 PMCID: PMC6388367 DOI: 10.3390/ijerph16030448] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/21/2018] [Revised: 01/25/2019] [Accepted: 01/31/2019] [Indexed: 12/15/2022]
Abstract
Persistent organic pollutants (POPs) such as organochlorine (OC) pesticides, polychlorinated biphenyls (PCBs), polychlorinated dibenzo-p-dioxins (PCDDs), and polychlorinated dibenzofurans (PCDFs) have become wide-spread environmental contaminants as a consequence of their extensive use, long-range transport, and persistence. Because POPs are highly resistant to metabolic degradation, humans bioaccumulate these lipophilic and hydrophobic pollutants in fatty tissues for many years. Previous studies have demonstrated that POPs including PCBs are involved in the development of diabetes mellitus (DM) type 2 and insulin resistance. Numerous epidemiological studies suggest an association between POP burden and DM type 2/metabolic syndrome. In addition, several experimental studies have provided additional evidence supporting the association between POP exposure and DM type 2 or insulin resistance. Epidemiological and experimental studies have provided compelling evidence indicating that exposure to POPs increases the risk of developing insulin resistance and metabolic disorders. However, the detailed molecular mechanism underlying POP-induced insulin resistance is yet to be elucidated. In this article, we review literature that has reported on the association between POP burden and insulin resistance and the mechanism underlying POP-induced insulin resistance, and discuss implications for public health.
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Affiliation(s)
- Yeon A Kim
- Department of Anatomy and Cell Biology and Mitochondria Hub Regulation Center, Dong-A University College of Medicine, Busan 49201, Korea.
- Department of Anesthesiology and Pain Medicine, Gyeongsang National University Changwon Hospital, Changwon 51472, Korea.
- Institute of Health Sciences, School of Medicine, Gyeongsang National University, Jinju 52727, Korea.
| | - Joon Beom Park
- Department of Anatomy and Cell Biology and Mitochondria Hub Regulation Center, Dong-A University College of Medicine, Busan 49201, Korea.
| | - Min Seok Woo
- Department of Convergence Medical Science, Gyeongsang National University, Jinju 52727, Korea.
| | - Sang Yeob Lee
- Department of Anatomy and Cell Biology and Mitochondria Hub Regulation Center, Dong-A University College of Medicine, Busan 49201, Korea.
- Department of Rheumatology, Dong-A University College of Medicine, Busan 49201, Korea.
| | - Hye Young Kim
- Department of Anatomy and Cell Biology and Mitochondria Hub Regulation Center, Dong-A University College of Medicine, Busan 49201, Korea.
| | - Young Hyun Yoo
- Department of Anatomy and Cell Biology and Mitochondria Hub Regulation Center, Dong-A University College of Medicine, Busan 49201, Korea.
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Marroqui L, Tudurí E, Alonso-Magdalena P, Quesada I, Nadal Á, Dos Santos RS. Mitochondria as target of endocrine-disrupting chemicals: implications for type 2 diabetes. J Endocrinol 2018; 239:R27-R45. [PMID: 30072426 DOI: 10.1530/joe-18-0362] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/26/2018] [Accepted: 08/01/2018] [Indexed: 12/12/2022]
Abstract
Type 2 diabetes is a chronic, heterogeneous syndrome characterized by insulin resistance and pancreatic β-cell dysfunction or death. Among several environmental factors contributing to type 2 diabetes development, endocrine-disrupting chemicals (EDCs) have been receiving special attention. These chemicals include a wide variety of pollutants, from components of plastic to pesticides, with the ability to modulate endocrine system function. EDCs can affect multiple cellular processes, including some related to energy production and utilization, leading to alterations in energy homeostasis. Mitochondria are primarily implicated in cellular energy conversion, although they also participate in other processes, such as hormone secretion and apoptosis. In fact, mitochondrial dysfunction due to reduced oxidative capacity, impaired lipid oxidation and increased oxidative stress has been linked to insulin resistance and type 2 diabetes. Herein, we review the main mechanisms whereby metabolism-disrupting chemical (MDC), a subclass of EDCs that disturbs energy homeostasis, cause mitochondrial dysfunction, thus contributing to the establishment of insulin resistance and type 2 diabetes. We conclude that MDC-induced mitochondrial dysfunction, which is mainly characterized by perturbations in mitochondrial bioenergetics, biogenesis and dynamics, excessive reactive oxygen species production and activation of the mitochondrial pathway of apoptosis, seems to be a relevant mechanism linking MDCs to type 2 diabetes development.
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Affiliation(s)
- Laura Marroqui
- Centro de Investigación Biomédica en Red de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM) and Institute of Bioengineering, Miguel Hernández University of Elche, Alicante, Spain
| | - Eva Tudurí
- Centro de Investigación Biomédica en Red de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM) and Institute of Bioengineering, Miguel Hernández University of Elche, Alicante, Spain
| | - Paloma Alonso-Magdalena
- Centro de Investigación Biomédica en Red de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM) and Institute of Bioengineering, Miguel Hernández University of Elche, Alicante, Spain
| | - Iván Quesada
- Centro de Investigación Biomédica en Red de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM) and Institute of Bioengineering, Miguel Hernández University of Elche, Alicante, Spain
| | - Ángel Nadal
- Centro de Investigación Biomédica en Red de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM) and Institute of Bioengineering, Miguel Hernández University of Elche, Alicante, Spain
| | - Reinaldo Sousa Dos Santos
- Centro de Investigación Biomédica en Red de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM) and Institute of Bioengineering, Miguel Hernández University of Elche, Alicante, Spain
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Raffetti E, Donato F, Speziani F, Scarcella C, Gaia A, Magoni M. Polychlorinated biphenyls (PCBs) exposure and cardiovascular, endocrine and metabolic diseases: A population-based cohort study in a North Italian highly polluted area. ENVIRONMENT INTERNATIONAL 2018; 120:215-222. [PMID: 30103120 DOI: 10.1016/j.envint.2018.08.022] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2018] [Revised: 08/07/2018] [Accepted: 08/08/2018] [Indexed: 05/08/2023]
Abstract
BACKGROUND AND AIMS Exposure to polychlorinated biphenyls (PCBs) has been linked to the onset of cardiovascular, endocrine, and metabolic diseases, but no conclusive evidence has been provided so far. A chemical factory produced PCBs from 1938 to 1984 in Brescia (North Italy) resulting in environmental contamination and human exposure. We aimed to evaluate the association between PCB serum levels and subsequent incidence of chronic diseases through a prospective cohort study design. METHODS Based on surveys conducted in Brescia province between 2001 and 2013, a cohort of 1331 subjects with at least one measure of PCB serum levels during the period was selected and followed longitudinally. Serum concentration of total PCBs was computed summing up the levels of 24 PCB congeners determined by gas chromatography. The data on incidence of hypertension, cardiovascular diseases, and endocrine and metabolic chronic diseases were retrieved from the Brescia Health Protection Agency database. Poisson regression models adjusted for age, level of education, BMI, cholesterol level, tobacco smoking and alcohol drinking were employed to calculate rate ratios (RRs). RESULTS 1331 subjects were enrolled (45.7% males, mean age 50.6 years) contributing to 10,006 person-years of follow-up. A dose-response relationship was observed between PCB serum levels and the onset of hypertension (RR for 2nd and 3rd tertiles of serum PCB distribution: 2.07, 95% CI 1.18-3.63, and 2.41, 1.30-4.47, respectively). A possible, though not statistically significant, increase of the risk of cardiovascular disease was also found (RR for 2nd and 3rd tertiles of serum PCB distribution: 1.61, 0.72-3.64, and 1.96, 0.86-4.48, respectively). The results based on lipid-standardized PCBs were slightly attenuated. No association was found between PCB serum levels and occurrence of diabetes and endocrine disorders. Stratified analysis by body mass index showed an increased risk of hypertension in subjects at 2nd and 3rd tertile of serum PCB distribution in overweight/obese subjects only. CONCLUSIONS These results suggest that PCBs might play a role in the development of hypertension and possibly cardiovascular disease, though alternative explanations are to be considered too.
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Affiliation(s)
- Elena Raffetti
- ATS Brescia (Brescia Health Protection Agency), Brescia, Italy
| | - Francesco Donato
- Department of Medical and Surgical Specialties Radiological Sciences and Public Health, Unit of Hygiene, Epidemiology, and Public Health, University of Brescia, Italy
| | | | | | - Alice Gaia
- Department of Medical and Surgical Specialties Radiological Sciences and Public Health, Institute of Occupational Health and Industrial Hygiene, University of Brescia, Italy
| | - Michele Magoni
- ATS Brescia (Brescia Health Protection Agency), Brescia, Italy.
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Su S, Wu G, Cheng X, Fan J, Peng J, Su H, Xu Z, Cao M, Long Z, Hao Y, Li G, Li S, Hai C, Wang X. Oleanolic acid attenuates PCBs-induced adiposity and insulin resistance via HNF1b-mediated regulation of redox and PPARγ signaling. Free Radic Biol Med 2018; 124:122-134. [PMID: 29879443 DOI: 10.1016/j.freeradbiomed.2018.06.003] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/10/2018] [Revised: 05/15/2018] [Accepted: 06/02/2018] [Indexed: 12/13/2022]
Abstract
Polychlorinated biphenyls (PCBs) exposure is closely associated with obesity and diabetes. However, the mechanism of PCBs-induced adiposity and insulin resistance is not clear and the intervention is limited. We have found that oleanolic acid (OA) is a natural triterpenoid, possessing antioxidant and anti-diabetic activity, and hepatocyte nuclear factor 1b (HNF1b) is an important regulator of glucose and lipid metabolism. The present study aimed to investigate the effect of OA on Aroclor 1254-induced adiposity and insulin resistance and explore the possible involvement of HNF1b. We showed that OA significantly attenuated Aroclor 1254-induced insulin resistance and abnormal changes of glucose and lipid parameters. OA inhibited the increase of adipose weight and adipocyte size in Aroclor 1254-treated mice and repressed adipocyte differentiation in vitro. In addition, OA markedly inhibited Aroclor 1254-induced increase of ROS, oxidant products, NOX4 expression, decrease of SOD1, SOD2, GCLC, GCLM and Gpx1 expression, and increase of PPARγ signaling. Aroclor 1254 resulted in a decrease of HNF1b expression in adipose of mice and adipocytes, which was inhibited by OA. Upregulation of HNF1b blocked Aroclor 1254-induced oxidative stress, adipocyte differentiation and insulin resistance. Downregulation of HNF1b inhibited OA-induced protective effects against Aroclor 1254-associated oxidative stress, adipocyte differentiation and insulin resistance. The antioxidant Vitamin C reduced Aroclor 1254-induced ROS generation in vitro, but had no significant effect on HNF1b expression, oxidative stress and metabolic dysfunction in vivo. OA could inhibit PCBs mixture-induced oxidative injury and glucose/lipid metabolic dysfunction via HNF1b-mediated regulation of redox homeostasis. Our data suggest that HNF1b is a new on/off switch of redox homeostasis and OA-stimulated HNF1b-endogenous antioxidant activity is a potential option for the intervention of PCBs exposure-related adiposity and insulin resistance.
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Affiliation(s)
- Shuhao Su
- Department of Toxicology, Shaanxi Key Lab of Free Radical Biology and Medicine, School of Public Health, Fourth Military Medical University, Xi'an 710032, Shaanxi Province, China
| | - Guangyuan Wu
- Department of Toxicology, Shaanxi Key Lab of Free Radical Biology and Medicine, School of Public Health, Fourth Military Medical University, Xi'an 710032, Shaanxi Province, China
| | - Xiaodong Cheng
- Department of Toxicology, Shaanxi Key Lab of Free Radical Biology and Medicine, School of Public Health, Fourth Military Medical University, Xi'an 710032, Shaanxi Province, China
| | - Junshu Fan
- Department of Toxicology, Shaanxi Key Lab of Free Radical Biology and Medicine, School of Public Health, Fourth Military Medical University, Xi'an 710032, Shaanxi Province, China
| | - Jie Peng
- Department of Toxicology, Shaanxi Key Lab of Free Radical Biology and Medicine, School of Public Health, Fourth Military Medical University, Xi'an 710032, Shaanxi Province, China
| | - Hongfei Su
- Department of Toxicology, Shaanxi Key Lab of Free Radical Biology and Medicine, School of Public Health, Fourth Military Medical University, Xi'an 710032, Shaanxi Province, China
| | - Zhongrui Xu
- Department of Toxicology, Shaanxi Key Lab of Free Radical Biology and Medicine, School of Public Health, Fourth Military Medical University, Xi'an 710032, Shaanxi Province, China
| | - Meng Cao
- Department of Toxicology, Shaanxi Key Lab of Free Radical Biology and Medicine, School of Public Health, Fourth Military Medical University, Xi'an 710032, Shaanxi Province, China
| | - Zi Long
- Department of Toxicology, Shaanxi Key Lab of Free Radical Biology and Medicine, School of Public Health, Fourth Military Medical University, Xi'an 710032, Shaanxi Province, China
| | - Yiming Hao
- Department of Gastrointestinal Surgery, Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an 710032, Shaanxi Province, China
| | - Ge Li
- Department of Toxicology, Shaanxi Key Lab of Free Radical Biology and Medicine, School of Public Health, Fourth Military Medical University, Xi'an 710032, Shaanxi Province, China
| | - Shuang Li
- Department of Cardiology, Chengdu Military General Hospital, Chengdu 610083, Sichuan Province, China
| | - Chunxu Hai
- Department of Toxicology, Shaanxi Key Lab of Free Radical Biology and Medicine, School of Public Health, Fourth Military Medical University, Xi'an 710032, Shaanxi Province, China.
| | - Xin Wang
- Department of Toxicology, Shaanxi Key Lab of Free Radical Biology and Medicine, School of Public Health, Fourth Military Medical University, Xi'an 710032, Shaanxi Province, China.
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Lind PM, Lind L. Endocrine-disrupting chemicals and risk of diabetes: an evidence-based review. Diabetologia 2018; 61:1495-1502. [PMID: 29744538 PMCID: PMC6445457 DOI: 10.1007/s00125-018-4621-3] [Citation(s) in RCA: 97] [Impact Index Per Article: 16.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/13/2018] [Accepted: 03/19/2018] [Indexed: 01/17/2023]
Abstract
The purpose of this study was to review the epidemiological and experimental evidence linking background exposure to a selection of environmental endocrine-disrupting chemicals (EDCs) with diabetes and impaired glucose metabolism. The review summarises the literature on both cross-sectional and prospective studies in humans, as well as experimental in vivo and in vitro studies. The findings were subjected to evidence grading according to the Grading of Recommendations Assessment, Development and Evaluation (GRADE) classification. We found >40 cross-sectional and seven prospective studies regarding EDCs and risk of diabetes. Taken together, there is moderate evidence for a relationship between exposure to dichlorodiphenyldichloroethylene (p,p'-DDE), a metabolite of the pesticide dichlorodiphenyltrichloroethane, and diabetes development. Regarding polychlorinated biphenyls (PCBs), it is likely that the rodent models used are not appropriate, and therefore the evidence is poorer than for p,p'-DDE. For other EDCs, such as bisphenol A, phthalates and perfluorinated chemicals, the evidence is scarce, since very few prospective studies exist. Brominated flame retardants do not seem to be associated with a disturbed glucose tolerance. Thus, evidence is accumulating that EDCs might be involved in diabetes development. Best evidence exists for p,p'-DDE. For other chemicals, both prospective studies and supporting animal data are still lacking.
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Affiliation(s)
- P Monica Lind
- Occupational and Environmental Medicine, Department of Medical Sciences, Uppsala University, Uppsala, Sweden
| | - Lars Lind
- Cardiovascular Epidemiology, Department of Medical Sciences, Entrance 40, Uppsala University, 751 85, Uppsala, Sweden.
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Eftekhari S, Aminian O, Moinfar Z, Schettgen T, Kaifie A, Felten M, Kraus T, Esser A. Association of plasma PCB levels and HbA1c concentration in Iran. J Occup Med Toxicol 2018; 13:18. [PMID: 29881441 PMCID: PMC5984357 DOI: 10.1186/s12995-018-0199-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2017] [Accepted: 05/15/2018] [Indexed: 12/31/2022] Open
Abstract
Background The rapid increase in prevalence of diabetes mellitus over the last decades warrants more attention to the effects of environmental and occupational exposures on glucose metabolism. Our study aimed to assess the association between the plasma levels of various congeners of polychlorinated biphenyls (PCBs) and the serum concentration of glycated haemoglobin (HbA1c). Methods Our study population consisted of 140 Iranian adults from seven different occupational groups and a group of non-occupationally exposed female participants. The plasma concentration of PCBs were determined at the laboratory of occupational toxicology at RWTH Aachen University, Germany. We considered an HbA1c concentration of 5.7% and more as indicating a disturbed glucose metabolism. Logistic regression was used to assess the association between quartiles of concentrations of PCB congeners and serum HbA1c. Results Participants with an increased HbA1c value had higher plasma levels of PCB 138, 153, 180 and the PCB sum, although this association was statistically not significant. There was no significant difference between the levels of PCB 138, 153, 180, the sum of these congeners, and PCB 118 in their quartiles when comparing with HbA1c concentrations. Conclusions For our cohort, we could not demonstrate a significant association between PCB and HbA1c concentrations indicating a disturbance of glucose metabolism. Electronic supplementary material The online version of this article (10.1186/s12995-018-0199-4) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Sahar Eftekhari
- 2School of Medicine- International Campus, Tehran University of Medical Sciences (TUMS), Tehran, Iran
| | - Omid Aminian
- 3Center for Research on Occupational Diseases, Tehran University of Medical Sciences (TUMS), Tehran, Iran
| | - Zeinab Moinfar
- 4Community and Preventive Medicine Department, Tehran University of Medical Sciences (TUMS), Tehran, Iran
| | - Thomas Schettgen
- 1Institute for Occupational, Social and Environmental Medicine, University Hospital Aachen, RWTH University Aachen, Pauwelsstr 30, D-52074 Aachen, Germany
| | - Andrea Kaifie
- 1Institute for Occupational, Social and Environmental Medicine, University Hospital Aachen, RWTH University Aachen, Pauwelsstr 30, D-52074 Aachen, Germany
| | - Michael Felten
- 1Institute for Occupational, Social and Environmental Medicine, University Hospital Aachen, RWTH University Aachen, Pauwelsstr 30, D-52074 Aachen, Germany
| | - Thomas Kraus
- 1Institute for Occupational, Social and Environmental Medicine, University Hospital Aachen, RWTH University Aachen, Pauwelsstr 30, D-52074 Aachen, Germany
| | - André Esser
- 1Institute for Occupational, Social and Environmental Medicine, University Hospital Aachen, RWTH University Aachen, Pauwelsstr 30, D-52074 Aachen, Germany
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Marushka L, Hu X, Batal M, Sadik T, Schwartz H, Ing A, Fediuk K, Tikhonov C, Chan HM. The Relationship between Persistent Organic Pollutants Exposure and Type 2 Diabetes among First Nations in Ontario and Manitoba, Canada: A Difference in Difference Analysis. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2018; 15:E539. [PMID: 29562596 PMCID: PMC5877084 DOI: 10.3390/ijerph15030539] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/20/2018] [Revised: 03/08/2018] [Accepted: 03/16/2018] [Indexed: 12/11/2022]
Abstract
We previously studied the association between fish consumption and prevalence of type 2 diabetes (T2D) in Manitoba and Ontario First Nations (FNs), Canada and found different results. In this study, we used a difference in difference model to analyze the data. Dietary and health data from the First Nations Food Nutrition and Environment Study, a cross-sectional study of 706 Manitoba and 1429 Ontario FNs were analyzed. The consumption of fish was estimated using a food frequency questionnaire. Fish samples were analyzed for dichloro diphenyldichloro ethylene (DDE) and polychlorinated biphenyls (PCBs) content. Difference in difference model results showed that persistent organic pollutant (POP) exposure was positively associated with T2D in a dose-response manner. Stronger positive associations were found among females (OR = 14.96 (3.72-60.11)) than in males (OR = 2.85 (1.14-8.04)). The breakpoints for DDE and PCB intake were 2.11 ng/kg/day and 1.47 ng/kg/day, respectively. Each further 1 ng/kg/day increase in DDE and PCB intake increased the risk of T2D with ORs 2.29 (1.26-4.17) and 1.44 (1.09-1.89), respectively. Our findings suggest that the balance of risk and benefits associated with fish consumption is highly dependent on the regional POP concentrations in fish.
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Affiliation(s)
- Lesya Marushka
- Biology Department, University of Ottawa, 180 Gendron Hall, 30 Marie Curie, Ottawa, ON K1N 6N5, Canada.
| | - Xuefeng Hu
- Biology Department, University of Ottawa, 180 Gendron Hall, 30 Marie Curie, Ottawa, ON K1N 6N5, Canada.
| | - Malek Batal
- Nutrition Department, Faculty of Medicine, Université de Montréal, Pavillon Liliane de Stewart, 2405 Côte-Sainte-Catherine Street, Montreal, QC H3T 1A8, Canada.
| | - Tonio Sadik
- Assembly of First Nations, 55 Metcalfe St #1600, Ottawa, ON K1P 6L5, Canada.
| | - Harold Schwartz
- Health Canada, Environmental Public Health Division, First Nations and Inuit Health Branch (FNIHB), Room 2000A Jeanne Mance Bldg. AL 1920A, Tunney's Pasture, Ottawa, ON K1A 0K9, Canada.
| | - Amy Ing
- Nutrition Department, Faculty of Medicine, Université de Montréal, Pavillon Liliane de Stewart, 2405 Côte-Sainte-Catherine Street, Montreal, QC H3T 1A8, Canada.
| | - Karen Fediuk
- Dietitian and Nutrition Researcher, Victoria, BC V8Y2V8, Canada.
| | - Constantine Tikhonov
- Health Canada, Environmental Public Health Division, First Nations and Inuit Health Branch (FNIHB), Room 2000A Jeanne Mance Bldg. AL 1920A, Tunney's Pasture, Ottawa, ON K1A 0K9, Canada.
| | - Hing Man Chan
- Biology Department, University of Ottawa, 180 Gendron Hall, 30 Marie Curie, Ottawa, ON K1N 6N5, Canada.
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Endocrine Disruptors Leading to Obesity and Related Diseases. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2017; 14:ijerph14101282. [PMID: 29064461 PMCID: PMC5664782 DOI: 10.3390/ijerph14101282] [Citation(s) in RCA: 123] [Impact Index Per Article: 17.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/12/2017] [Revised: 10/17/2017] [Accepted: 10/19/2017] [Indexed: 12/15/2022]
Abstract
The review aims to comprehensively present the impact of exposure to endocrine disruptors (EDs) in relation to the clinical manifestation of obesity and related diseases, including diabetes mellitus, metabolic syndrome, cardiovascular diseases, carcinogenesis and infertility. EDs are strong participants in the obesity epidemic scenery by interfering with cellular morphological and biochemical processes; by inducing inflammatory responses; and by presenting transcriptional and oncogenic activity. Obesity and lipotoxicity enhancement occur through reprogramming and/or remodeling of germline epigenome by exposure to EDs. Specific population groups are vulnerable to ED exposure due to current dietary and environmental conditions. Obesity, morbidity and carcinogenicity induced by ED exposure are an evolving reality. Therefore, a new collective strategic approach is deemed essential, for the reappraisal of current global conditions pertaining to energy management.
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Polluted Pathways: Mechanisms of Metabolic Disruption by Endocrine Disrupting Chemicals. Curr Environ Health Rep 2017; 4:208-222. [PMID: 28432637 DOI: 10.1007/s40572-017-0137-0] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
PURPOSE OF REVIEW Environmental toxicants are increasingly implicated in the global decline in metabolic health. Focusing on diabetes, herein, the molecular and cellular mechanisms by which metabolism disrupting chemicals (MDCs) impair energy homeostasis are discussed. RECENT FINDINGS Emerging data implicate MDC perturbations in a variety of pathways as contributors to metabolic disease pathogenesis, with effects in diverse tissues regulating fuel utilization. Potentiation of traditional metabolic risk factors, such as caloric excess, and emerging threats to metabolism, such as disruptions in circadian rhythms, are important areas of current and future MDC research. Increasing evidence also implicates deleterious effects of MDCs on metabolic programming that occur during vulnerable developmental windows, such as in utero and early post-natal life as well as pregnancy. Recent insights into the mechanisms by which MDCs alter energy homeostasis will advance the field's ability to predict interactions with classical metabolic disease risk factors and empower studies utilizing targeted therapeutics to treat MDC-mediated diabetes.
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Fénichel P, Chevalier N. Environmental endocrine disruptors: New diabetogens? C R Biol 2017; 340:446-452. [PMID: 28826789 DOI: 10.1016/j.crvi.2017.07.003] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2016] [Accepted: 07/21/2017] [Indexed: 02/06/2023]
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Brown TM, Hammond SA, Behsaz B, Veldhoen N, Birol I, Helbing CC. De novo assembly of the ringed seal (Pusa hispida) blubber transcriptome: A tool that enables identification of molecular health indicators associated with PCB exposure. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2017; 185:48-57. [PMID: 28187360 DOI: 10.1016/j.aquatox.2017.02.004] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/05/2016] [Revised: 02/02/2017] [Accepted: 02/03/2017] [Indexed: 06/06/2023]
Abstract
The ringed seal, Pusa hispida, is a keystone species in the Arctic marine ecosystem, and is proving a useful marine mammal for linking polychlorinated biphenyl (PCB) exposure to toxic injury. We report here the first de novo assembled transcriptome for the ringed seal (342,863 transcripts, of which 53% were annotated), which we then applied to a population of ringed seals exposed to a local PCB source in Arctic Labrador, Canada. We found an indication of energy metabolism imbalance in local ringed seals (n=4), and identified five significant gene transcript targets: plasminogen receptor (Plg-R(KT)), solute carrier family 25 member 43 receptor (Slc25a43), ankyrin repeat domain-containing protein 26-like receptor (Ankrd26), HIS30 (not yet annotated) and HIS16 (not yet annotated) that may represent indicators of PCB exposure and effects in marine mammals. The abundance profiles of these five gene targets were validated in blubber samples collected from 43 ringed seals using a qPCR assay. The mRNA transcript levels for all five gene targets, (Plg-R(KT), r2=0.43), (Slc25a43, r2=0.51), (Ankrd26, r2=0.43), (HIS30, r2=0.39) and (HIS16, r2=0.31) correlated with increasing levels of blubber PCBs. Results from the present study contribute to our understanding of PCB associated effects in marine mammals, and provide new tools for future molecular and toxicology work in pinnipeds.
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Affiliation(s)
- Tanya M Brown
- Department of Biochemistry and Microbiology, University of Victoria, Victoria, British Columbia V8W 3P6, Canada; Memorial University, St. John's, Newfoundland A1B 3X9, Canada
| | - S Austin Hammond
- Department of Biochemistry and Microbiology, University of Victoria, Victoria, British Columbia V8W 3P6, Canada; Canada's Michael Smith Genome Sciences Centre, British Columbia Cancer Agency, Vancouver, BC V5Z 4S6, Canada
| | - Bahar Behsaz
- Canada's Michael Smith Genome Sciences Centre, British Columbia Cancer Agency, Vancouver, BC V5Z 4S6, Canada
| | - Nik Veldhoen
- Department of Biochemistry and Microbiology, University of Victoria, Victoria, British Columbia V8W 3P6, Canada
| | - Inanç Birol
- Canada's Michael Smith Genome Sciences Centre, British Columbia Cancer Agency, Vancouver, BC V5Z 4S6, Canada
| | - Caren C Helbing
- Department of Biochemistry and Microbiology, University of Victoria, Victoria, British Columbia V8W 3P6, Canada.
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Wu H, Yu W, Meng F, Mi J, Peng J, Liu J, Zhang X, Hai C, Wang X. Polychlorinated biphenyls-153 induces metabolic dysfunction through activation of ROS/NF-κB signaling via downregulation of HNF1b. Redox Biol 2017; 12:300-310. [PMID: 28285191 PMCID: PMC5345977 DOI: 10.1016/j.redox.2017.02.026] [Citation(s) in RCA: 53] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2017] [Revised: 02/25/2017] [Accepted: 02/28/2017] [Indexed: 11/26/2022] Open
Abstract
Polychlorinated biphenyls (PCB) is a major type of persistent organic pollutants (POPs) that act as endocrine-disrupting chemicals. In the current study, we examined the mechanism underlying the effect of PCB-153 on glucose and lipid metabolism in vivo and in vitro. We found that PCB-153 induced per se and worsened high fat diet (HFD)-resulted increase of blood glucose level and glucose and insulin intolerance. In addition, PCB-153 induced per se and worsened HFD-resulted increase of triglyceride content and adipose mass. Moreover, PCB-153 concentration-dependently inhibited insulin-dependent glucose uptake and lipid accumulation in cultured hepatocytes and adipocytes. PCB-153 induced the expression and nuclear translocation of p65 NF-κB and the expression of its downstream inflammatory markers, and worsened HFD-resulted increase of those inflammatory markers. Inhibition of NF-κB significantly suppressed PCB-153-induced inflammation, lipid accumulation and decrease of glucose uptake. PCB-153 induced oxidative stress and decreased hepatocyte nuclear factor 1b (HNF1b) and glutathione peroxidase 1 (GPx1) expression in vivo and in vitro. Overexpression of HNF1b increased GPx1 expression, decreased ROS level, decreased Srebp1, ACC and FAS expression, and inhibited PCB-153-resulted oxidative stress, NF-κB-mediated inflammation, and final glucose/lipid metabolic disorder. Our results suggest that dysregulation of HNF1b/ROS/NF-κB plays an important role in PCB-153-induced glucose/lipid metabolic disorder.
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Affiliation(s)
- Hao Wu
- Department of Toxicology, Shaanxi Key Lab of Free Radical Biology and Medicine, the Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, School of Public Health, Fourth Military Medical University, Xi'an 710032, China
| | - Weihua Yu
- Department of Toxicology, Shaanxi Key Lab of Free Radical Biology and Medicine, the Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, School of Public Health, Fourth Military Medical University, Xi'an 710032, China
| | - Fansen Meng
- Department of Toxicology, Shaanxi Key Lab of Free Radical Biology and Medicine, the Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, School of Public Health, Fourth Military Medical University, Xi'an 710032, China
| | - Jie Mi
- Department of Toxicology, Shaanxi Key Lab of Free Radical Biology and Medicine, the Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, School of Public Health, Fourth Military Medical University, Xi'an 710032, China
| | - Jie Peng
- Department of Toxicology, Shaanxi Key Lab of Free Radical Biology and Medicine, the Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, School of Public Health, Fourth Military Medical University, Xi'an 710032, China
| | - Jiangzheng Liu
- Department of Toxicology, Shaanxi Key Lab of Free Radical Biology and Medicine, the Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, School of Public Health, Fourth Military Medical University, Xi'an 710032, China
| | - Xiaodi Zhang
- Department of Toxicology, Shaanxi Key Lab of Free Radical Biology and Medicine, the Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, School of Public Health, Fourth Military Medical University, Xi'an 710032, China
| | - Chunxu Hai
- Department of Toxicology, Shaanxi Key Lab of Free Radical Biology and Medicine, the Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, School of Public Health, Fourth Military Medical University, Xi'an 710032, China
| | - Xin Wang
- Department of Toxicology, Shaanxi Key Lab of Free Radical Biology and Medicine, the Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, School of Public Health, Fourth Military Medical University, Xi'an 710032, China.
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Heindel JJ, Blumberg B, Cave M, Machtinger R, Mantovani A, Mendez MA, Nadal A, Palanza P, Panzica G, Sargis R, Vandenberg LN, Vom Saal F. Metabolism disrupting chemicals and metabolic disorders. Reprod Toxicol 2017; 68:3-33. [PMID: 27760374 PMCID: PMC5365353 DOI: 10.1016/j.reprotox.2016.10.001] [Citation(s) in RCA: 629] [Impact Index Per Article: 89.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2016] [Revised: 09/04/2016] [Accepted: 10/13/2016] [Indexed: 01/09/2023]
Abstract
The recent epidemics of metabolic diseases, obesity, type 2 diabetes(T2D), liver lipid disorders and metabolic syndrome have largely been attributed to genetic background and changes in diet, exercise and aging. However, there is now considerable evidence that other environmental factors may contribute to the rapid increase in the incidence of these metabolic diseases. This review will examine changes to the incidence of obesity, T2D and non-alcoholic fatty liver disease (NAFLD), the contribution of genetics to these disorders and describe the role of the endocrine system in these metabolic disorders. It will then specifically focus on the role of endocrine disrupting chemicals (EDCs) in the etiology of obesity, T2D and NAFLD while finally integrating the information on EDCs on multiple metabolic disorders that could lead to metabolic syndrome. We will specifically examine evidence linking EDC exposures during critical periods of development with metabolic diseases that manifest later in life and across generations.
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Affiliation(s)
- Jerrold J Heindel
- National Institute of Environmental Health Sciences, Division of Extramural Research and Training Research Triangle Park, NC, USA.
| | - Bruce Blumberg
- University of California, Department of Developmental and Cell Biology, Irvine CA, USA
| | - Mathew Cave
- University of Louisville, Division of Gastroenterology, Hepatology and Nutrition, Louisville KY, USA
| | | | | | - Michelle A Mendez
- University of North Carolina at Chapel Hill, School of Public Health, Chapel Hill NC, USA
| | - Angel Nadal
- Institute of Bioengineering and CIBERDEM, Miguel Hernandez University of Elche, Elche, Alicante, Spain
| | - Paola Palanza
- University of Parma, Department of Neurosciences, Parma, Italy
| | - Giancarlo Panzica
- University of Turin, Department of Neuroscience and Neuroscience Institute Cavalieri Ottolenghi (NICO), Turin, Italy
| | - Robert Sargis
- University of Chicago, Section of Endocrinology, Diabetes and Metabolism, Department of Medicine Chicago, IL, USA
| | - Laura N Vandenberg
- University of Massachusetts, Department of Environmental Health Sciences, School of Public Health & Health Sciences, Amherst, MA, USA
| | - Frederick Vom Saal
- University of Missouri, Department of Biological Sciences, Columbia, MO, USA
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Wahlang B, Perkins JT, Petriello MC, Hoffman JB, Stromberg AJ, Hennig B. A compromised liver alters polychlorinated biphenyl-mediated toxicity. Toxicology 2017; 380:11-22. [PMID: 28163111 DOI: 10.1016/j.tox.2017.02.001] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2016] [Revised: 01/10/2017] [Accepted: 02/01/2017] [Indexed: 12/17/2022]
Abstract
Exposure to environmental toxicants namely polychlorinated biphenyls (PCBs) is correlated with multiple health disorders including liver and cardiovascular diseases. The liver is important for both xenobiotic and endobiotic metabolism. However, the responses of an injured liver to subsequent environmental insults has not been investigated. The current study aims to evaluate the role of a compromised liver in PCB-induced toxicity and define the implications on overall body homeostasis. Male C57Bl/6 mice were fed either an amino acid control diet (CD) or a methionine-choline deficient diet (MCD) during the 12-week study. Mice were subsequently exposed to either PCB126 (4.9mg/kg) or the PCB mixture, Arcolor1260 (20mg/kg) and analyzed for inflammatory, calorimetry and metabolic parameters. Consistent with the literature, MCD diet-fed mice demonstrated steatosis, indicative of a compromised liver. Mice fed the MCD-diet and subsequently exposed to PCB126 showed observable wasting syndrome leading to mortality. PCB126 and Aroclor1260 exposure worsened hepatic fibrosis exhibited by the MCD groups. Interestingly, PCB126 but not Aroclor1260 induced steatosis and inflammation in CD-fed mice. Mice with liver injury and subsequently exposed to PCBs also manifested metabolic disturbances due to alterations in hepatic gene expression. Furthermore, PCB exposure in MCD-fed mice led to extra-hepatic toxicity such as upregulated circulating inflammatory biomarkers, implicating endothelial cell dysfunction. Taken together, these results indicate that environmental pollution can exacerbate toxicity caused by diet-induced liver injury which may be partially due to dysfunctional energy homeostasis. This is relevant to PCB-exposed human cohorts who suffer from alcohol or diet-induced fatty liver diseases.
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Affiliation(s)
- Banrida Wahlang
- Superfund Research Center, University of Kentucky, Lexington, KY, 40536, USA; Department of Animal and Food Sciences, College of Agriculture, Food and Environment, University of Kentucky, Lexington, KY, 40536, USA
| | - Jordan T Perkins
- Superfund Research Center, University of Kentucky, Lexington, KY, 40536, USA
| | - Michael C Petriello
- Superfund Research Center, University of Kentucky, Lexington, KY, 40536, USA; Department of Animal and Food Sciences, College of Agriculture, Food and Environment, University of Kentucky, Lexington, KY, 40536, USA
| | - Jessie B Hoffman
- Superfund Research Center, University of Kentucky, Lexington, KY, 40536, USA; Graduate Center for Nutritional Sciences, College of Medicine, University of Kentucky, Lexington, KY 40536, USA
| | - Arnold J Stromberg
- Superfund Research Center, University of Kentucky, Lexington, KY, 40536, USA; Department of Statistics, College of Arts and Sciences, University of Kentucky, Lexington, KY, 40536, USA
| | - Bernhard Hennig
- Superfund Research Center, University of Kentucky, Lexington, KY, 40536, USA; Department of Animal and Food Sciences, College of Agriculture, Food and Environment, University of Kentucky, Lexington, KY, 40536, USA; Graduate Center for Nutritional Sciences, College of Medicine, University of Kentucky, Lexington, KY 40536, USA.
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35
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Kim HY, Kwon WY, Kim YA, Oh YJ, Yoo SH, Lee MH, Bae JY, Kim JM, Yoo YH. Polychlorinated biphenyls exposure-induced insulin resistance is mediated by lipid droplet enlargement through Fsp27. Arch Toxicol 2016; 91:2353-2363. [DOI: 10.1007/s00204-016-1889-2] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2016] [Accepted: 11/07/2016] [Indexed: 01/17/2023]
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36
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Esser A, Schettgen T, Gube M, Koch A, Kraus T. Association between polychlorinated biphenyls and diabetes mellitus in the German HELPcB cohort. Int J Hyg Environ Health 2016; 219:557-65. [DOI: 10.1016/j.ijheh.2016.06.001] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2015] [Revised: 05/31/2016] [Accepted: 06/01/2016] [Indexed: 10/21/2022]
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Shapiro GD, Dodds L, Arbuckle TE, Ashley-Martin J, Ettinger AS, Fisher M, Taback S, Bouchard MF, Monnier P, Dallaire R, Morisset AS, Fraser W. Exposure to organophosphorus and organochlorine pesticides, perfluoroalkyl substances, and polychlorinated biphenyls in pregnancy and the association with impaired glucose tolerance and gestational diabetes mellitus: The MIREC Study. ENVIRONMENTAL RESEARCH 2016; 147:71-81. [PMID: 26852007 DOI: 10.1016/j.envres.2016.01.040] [Citation(s) in RCA: 83] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2015] [Revised: 01/06/2016] [Accepted: 01/26/2016] [Indexed: 05/21/2023]
Abstract
BACKGROUND Studies report increases in rates of gestational diabetes mellitus (GDM) over recent decades. Environmental chemicals may increase the risk of diabetes through impacts on glucose metabolism, mitochondrial dysfunction, and endocrine-disrupting mechanisms including effects on pancreatic β-cell function and adiponectin release. OBJECTIVES To determine the associations between pesticides, perfluoroalkyl substances (PFASs) and polychlorinated biphenyls (PCBs) measured in early pregnancy and impaired glucose tolerance (IGT) and GDM in a Canadian birth cohort. METHODS Women enrolled in the Maternal-Infant Research on Environmental Chemicals (MIREC) Study were included if they had a singleton delivery and did not have pre-existing diabetes. Exposure variables included three organophosphorus (OP) pesticide metabolites detected in first-trimester urine samples, as well as three organochlorine (OC) pesticides, three PFASs, and four PCBs in first-trimester blood samples. Gestational IGT and GDM were assessed by chart review in accordance with published guidelines. Adjusted logistic regression models were used to calculate odds ratios (ORs) and 95% confidence intervals (CI) for the association between quartiles of environmental chemicals and both gestational IGT and GDM. RESULTS Of the 2001 women recruited into the MIREC cohort, 1274 met the inclusion criteria and had outcome and biomonitoring data available. Significantly lower odds of GDM were observed in the third and fourth quartiles of dimethylphosphate (DMP) and in the fourth quartile of dimethylthiophosphate (DMTP) in adjusted analyses (DMP Q3: OR=0.2, 95% CI=0.1-0.7; DMP Q4: OR=0.3, 95% CI=0.1-0.8; DMTP: OR=0.3, 95% CI=0.1-0.9). Significantly elevated odds of gestational IGT was observed in the second quartile of perfluorohexane sulfonate (PFHxS) (OR=3.5, 95% CI=1.4-8.9). No evidence of associations with GDM or IGT during pregnancy was observed for PCBs or OC pesticides. CONCLUSIONS We did not find consistent evidence for any positive associations between the chemicals we examined and GDM or IGT during pregnancy. We observed statistical evidence of inverse relationships between urine concentrations of DMP and DMTP with GDM. We cannot rule out the influence of residual confounding due to unmeasured protective factors, such as nutritional benefits from fruit and vegetable consumption, also associated with pesticide exposure, on the observed inverse associations between maternal OP pesticide metabolites and GDM. These findings require further investigation.
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Affiliation(s)
- Gabriel D Shapiro
- McGill University, Montreal, QC, Canada; CHU Sainte-Justine Research Centre, Université de Montréal, Montreal, QC, Canada
| | | | | | | | | | | | | | - Maryse F Bouchard
- CHU Sainte-Justine Research Centre, Université de Montréal, Montreal, QC, Canada
| | | | | | | | - William Fraser
- CHU Sainte-Justine Research Centre, Université de Montréal, Montreal, QC, Canada; Centre de recherche du CHUS, Sherbrooke, QC, Canada; Université de Sherbrooke, Sherbrooke, QC, Canada
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Mauger JF, Nadeau L, Caron A, Chapados NA, Aguer C. Polychlorinated biphenyl 126 exposure in L6 myotubes alters glucose metabolism: a pilot study. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2016; 23:8133-40. [PMID: 26936477 DOI: 10.1007/s11356-016-6348-3] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2015] [Accepted: 02/23/2016] [Indexed: 05/26/2023]
Abstract
Polychlorinated biphenyls (PCBs) are increasingly recognized as metabolic disruptors. Due to its mass, skeletal muscle is the major site of glucose disposal. While muscle mitochondrial dysfunction and oxidative stress have been shown to play a central role in metabolic disease development, no studies to date have investigated the effect of PCB exposure on muscle energy metabolism and oxidative stress. In this pilot study, we tested the effect of exposure to PCB126 in L6 myotubes (from 1 to 2500 nM for 24 h) on mitochondrial function, glucose metabolism, and oxidative stress. Exposure to PCB126 had no apparent effect on resting, maximal, and proton leak-dependent oxygen consumption rate in intact L6 myotubes. However, basal glucose uptake and glycolysis were inhibited by 20-30 % in L6 myotubes exposed to PCB126. Exposure to PCB126 did not appear to alter skeletal muscle anti-oxidant defense or oxidative stress. In conclusion, our study shows for the first time that exposure to a dioxin-like PCB adversely affects skeletal muscle glucose metabolism. Given the importance of skeletal muscle in the maintenance of glucose homeostasis, PCB126 could play an important role in the development of metabolic disorders.
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Affiliation(s)
- Jean-François Mauger
- Institut de recherche de l'Hôpital Montfort, 713 Montreal Rd, 1E113, Ottawa, ON, K1K 0T2, Canada
| | - Lucien Nadeau
- Institut de recherche de l'Hôpital Montfort, 713 Montreal Rd, 1E113, Ottawa, ON, K1K 0T2, Canada
- Faculty of Medicine, Biochemistry, Microbiology and Immunology Department, University of Ottawa, Ottawa, ON, K1H 8L1, Canada
| | - Audrey Caron
- Institut de recherche de l'Hôpital Montfort, 713 Montreal Rd, 1E113, Ottawa, ON, K1K 0T2, Canada
- Faculty of Health Sciences, Interdisciplinary School of Health Sciences, University of Ottawa, Ottawa, ON, K1S 5N5, Canada
| | - Natalie Ann Chapados
- Institut de recherche de l'Hôpital Montfort, 713 Montreal Rd, 1E113, Ottawa, ON, K1K 0T2, Canada
- Faculty of Health Sciences, School of Human Kinetics, University of Ottawa, Ottawa, ON, K1S 5N5, Canada
| | - Céline Aguer
- Institut de recherche de l'Hôpital Montfort, 713 Montreal Rd, 1E113, Ottawa, ON, K1K 0T2, Canada.
- Faculty of Medicine, Biochemistry, Microbiology and Immunology Department, University of Ottawa, Ottawa, ON, K1H 8L1, Canada.
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Mostafalou S. Persistent Organic Pollutants and Concern Over the Link with Insulin Resistance Related Metabolic Diseases. REVIEWS OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2016; 238:69-89. [PMID: 26670033 DOI: 10.1007/398_2015_5001] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Persistent organic pollutants (POPs) are mostly halogenated compounds tending to persist in the environment, enter into the food chain, and accumulate in fat mass of mammals due to their high lipophilicity. They include some organochlorine pesticides, polychlorinated biphenyls, brominated flame retardants and polycyclic aromatic hydrocarbons. Some of these chemicals were widely used in the past so that their residues can be detected in the human body, though their usage has been banned for years. POPs have been shown to perturb the health of biological systems in different ways evidenced by carcinogenicity and disrupting effects on endocrine, immune, and reproductive systems. There are many epidemiologic and experimental studies on the association of exposure to POPs with insulin resistance and related metabolic disorders like obesity, diabetes, and metabolic syndrome. Inflammation as a known mechanism accompanying insulin resistance has also been shown to arise in insulin target tissues exposed to POPs. This review addresses the breast milk concentration of POPs in different regions of the world, synthesizes the current information on the association of POPs with insulin resistance related metabolic disorders, and discusses the inflammation as an involved mechanism. Considering high prevalence of insulin resistance related metabolic diseases and their relation with POPs, much need is felt regarding international and regional programs to not only limit their production and usage but eliminate these persistent pollutants from the environment.
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Affiliation(s)
- Sara Mostafalou
- Department of Pharmacology and Toxicology, School of Pharmacy, Ardabil University of Medical Sciences, 5618953141, Ardabil, Iran.
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40
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Wahlang B, Prough RA, Falkner KC, Hardesty JE, Song M, Clair HB, Clark BJ, States JC, Arteel GE, Cave MC. Polychlorinated Biphenyl-Xenobiotic Nuclear Receptor Interactions Regulate Energy Metabolism, Behavior, and Inflammation in Non-alcoholic-Steatohepatitis. Toxicol Sci 2015; 149:396-410. [PMID: 26612838 DOI: 10.1093/toxsci/kfv250] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
Polychlorinated biphenyls (PCBs) are environmental pollutants associated with non-alcoholic-steatohepatitis (NASH), diabetes, and obesity. We previously demonstrated that the PCB mixture, Aroclor 1260, induced steatohepatitis and activated nuclear receptors in a diet-induced obesity mouse model. This study aims to evaluate PCB interactions with the pregnane-xenobiotic receptor (Pxr: Nr1i2) and constitutive androstane receptor (Car: Nr1i3) in NASH. Wild type C57Bl/6 (WT), Pxr(-/-) and Car(-/-) mice were fed the high fat diet (42% milk fat) and exposed to a single dose of Aroclor 1260 (20 mg/kg) in this 12-week study. Metabolic phenotyping and analysis of serum, liver, and adipose was performed. Steatohepatitis was pathologically similar in all Aroclor-exposed groups, while Pxr(-/-) mice displayed higher basal pro-inflammatory cytokine levels. Pxr repressed Car expression as evident by increased basal Car/Cyp2b10 expression in Pxr(-/-) mice. Both Pxr(-/-) and Car(-/-) mice showed decreased basal respiratory exchange rate (RER) consistent with preferential lipid metabolism. Aroclor increased RER and carbohydrate metabolism, associated with increased light cycle activity in both knockouts, and decreased food consumption in the Car(-/-) mice. Aroclor exposure improved insulin sensitivity in WT mice but not glucose tolerance. The Aroclor-exposed, Pxr(-/-) mice displayed increased gluconeogenic gene expression. Lipid-oxidative gene expression was higher in WT and Pxr(-/-) mice although RER was not changed, suggesting PCB-mediated mitochondrial dysfunction. Therefore, Pxr and Car regulated inflammation, behavior, and energy metabolism in PCB-mediated NASH. Future studies should address the 'off-target' effects of PCBs in steatohepatitis.
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Affiliation(s)
| | | | - K Cameron Falkner
- Department of Medicine Division of Gastroenterology, Hepatology and Nutrition, University of Louisville School of Medicine, Louisville, KY 40202
| | | | - Ming Song
- Department of Medicine Division of Gastroenterology, Hepatology and Nutrition, University of Louisville School of Medicine, Louisville, KY 40202
| | | | | | | | | | - Matthew C Cave
- *Department of Pharmacology and Toxicology; Department of Biochemistry and Molecular Genetics; Department of Medicine Division of Gastroenterology, Hepatology and Nutrition, University of Louisville School of Medicine, Louisville, KY 40202; The Robley Rex Veterans Affairs Medical Center, Louisville, KY 40206; and The KentuckyOne Health Jewish Hospital Liver Transplant Program, Louisville, KY 40202
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Tang-Péronard JL, Heitmann BL, Jensen TK, Vinggaard AM, Madsbad S, Steuerwald U, Grandjean P, Weihe P, Nielsen F, Andersen HR. Prenatal exposure to persistent organochlorine pollutants is associated with high insulin levels in 5-year-old girls. ENVIRONMENTAL RESEARCH 2015; 142:407-13. [PMID: 26232659 PMCID: PMC4609268 DOI: 10.1016/j.envres.2015.07.009] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/04/2015] [Revised: 07/02/2015] [Accepted: 07/16/2015] [Indexed: 05/02/2023]
Abstract
BACKGROUND Several persistent organochlorine pollutants (POPs) possess endocrine disrupting abilities, thereby potentially leading to an increased risk of obesity and metabolic diseases, especially if the exposure occurs during prenatal life. We have previously found associations between prenatal POP exposures and increased BMI, waist circumference and change in BMI from 5 to 7 years of age, though only among girls with overweight mothers. OBJECTIVES In the same birth cohort, we investigated whether prenatal POP exposure was associated with serum concentrations of insulin and leptin among 5-year-old children, thus possibly mediating the association with overweight and obesity at 7 years of age. METHODS The analyses were based on a prospective Faroese Birth Cohort (n=656), recruited between 1997 and 2000. Major POPs, polychlorinated biphenyls (PCBs), p,p'-dichlorodiphenyldichloroethylene (DDE) and hexachlorobenzene (HCB), were measured in maternal pregnancy serum and breast milk. Children were followed-up at the age of 5 years where a non-fasting blood sample was drawn; 520 children (273 boys and 247 girls) had adequate serum amounts available for biomarker analyses by Luminex® technology. Insulin and leptin concentrations were transformed from continuous to binary variables, using the 75th percentile as a cut-off point. Multiple logistic regression was used to investigate associations between prenatal POP exposures and non-fasting serum concentrations of insulin and leptin at age 5 while taking into account confounders. RESULTS Girls with highest prenatal POP exposure were more likely to have high non-fasting insulin levels (PCBs 4th quartile: OR=3.71; 95% CI: 1.36, 10.01. DDE 4th quartile: OR=2.75; 95% CI: 1.09, 6.90. HCB 4th quartile: OR=1.98; 95% CI: 1.06, 3.69) compared to girls in the lowest quartile. No significant associations were observed with leptin, or among boys. A mediating effect of insulin or leptin on later obesity was not observed. CONCLUSION These findings suggest, that for girls, prenatal exposure to POPs may play a role for later development of metabolic diseases by affecting the level of insulin.
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Affiliation(s)
- Jeanett L Tang-Péronard
- Department of Environmental Medicine, Institute of Public Health, University of Southern Denmark, J.B. Winsløws Vej 17, 5000 Odense C, Denmark; The Parker Institute and Institute of Preventive Medicine, Research Unit for Dietary Studies, Bispebjerg and Frederiksberg Hospitals, The Capital Region, Nordre Fasanvej 57, Hovedvejen, Entrance 5, 1st floor, 2000 Frederiksberg, Denmark.
| | - Berit L Heitmann
- The Parker Institute and Institute of Preventive Medicine, Research Unit for Dietary Studies, Bispebjerg and Frederiksberg Hospitals, The Capital Region, Nordre Fasanvej 57, Hovedvejen, Entrance 5, 1st floor, 2000 Frederiksberg, Denmark; The Boden Institute of Obesity, Nutrition, Exercise & Eating Disorders, Sydney Medical School, Sydney, Australia; National Institute of Public Health, University of Southern Denmark, Østerfarimagsgade 5A, 2, 1353 Copenhagen K, Denmark
| | - Tina K Jensen
- Department of Environmental Medicine, Institute of Public Health, University of Southern Denmark, J.B. Winsløws Vej 17, 5000 Odense C, Denmark
| | - Anne M Vinggaard
- National Food Institute, Division of Toxicology and Risk Assessment, Technical University of Denmark, Mørkhøj Bygade 19, 2860 Søborg, Denmark
| | - Sten Madsbad
- Department of Endocrinology, Hvidovre University Hospital, Kettegård Allé 30, 2650 Hvidovre, Denmark
| | - Ulrike Steuerwald
- Department of Occupational Medicine and Public Health, The Faroese Hospital System, Sigmundargøta 5, 100 Tórshavn, Faroe Islands; Neonatal Screening Laboratories, PO-Box 911009, d-30430 Hannover, Germany
| | - Philippe Grandjean
- Department of Environmental Medicine, Institute of Public Health, University of Southern Denmark, J.B. Winsløws Vej 17, 5000 Odense C, Denmark; Harvard School of Public Health, Boston, MA 02215, United States
| | - Pál Weihe
- Department of Occupational Medicine and Public Health, The Faroese Hospital System, Sigmundargøta 5, 100 Tórshavn, Faroe Islands
| | - Flemming Nielsen
- Department of Environmental Medicine, Institute of Public Health, University of Southern Denmark, J.B. Winsløws Vej 17, 5000 Odense C, Denmark
| | - Helle R Andersen
- Department of Environmental Medicine, Institute of Public Health, University of Southern Denmark, J.B. Winsløws Vej 17, 5000 Odense C, Denmark
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Zhang S, Wu T, Chen M, Guo Z, Yang Z, Zuo Z, Wang C. Chronic Exposure to Aroclor 1254 Disrupts Glucose Homeostasis in Male Mice via Inhibition of the Insulin Receptor Signal Pathway. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2015; 49:10084-92. [PMID: 26190026 DOI: 10.1021/acs.est.5b01597] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Epidemiological studies demonstrate that polychlorinated biphenyls (PCBs) induce diabetes and insulin resistance. However, the development of diabetes caused by PCBs and its underlying mechanisms are still unclear. In the present study, male C57BL/6 mice were orally administered with Aroclor 1254 (0.5, 5, 50, and 500 μg/kg) once every 3 days for 60 days. The body weight and the fasting blood glucose levels were significantly elevated; the levels of serum insulin, resistin, tumor necrosis factor α (TNFα), and interleukin-6 (IL-6) increased, while glucagon levels decreased in the animals treated with Aroclor 1254. Pancreatic β-cell mass significantly increased, while α-cell mass was reduced. Aroclor 1254 inhibited the expression of the insulin receptor signaling cascade, including insulin receptor, insulin receptor substrate, phosphatidylinositol 3-kinase-Akt, and protein kinase B and glucose transporter 4, both in the skeletal muscle and the liver. The results suggested that chronic exposure to Aroclor 1254 disrupted glucose homeostasis and induced hyperinsulinemia. The significant elevation of serum resistin, TNFα and IL-6 indicated that obesity caused by Aroclor 1254 is associated with insulin resistance. The elevation of blood glucose levels could have been mainly as a result of insulin receptor signals pathway suppression in skeletal muscle and liver, and a decrease in pancreatic α-cells, accompanied by a reduction of serum glucagon levels, may play an important role in the development of type 2 diabetes.
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Affiliation(s)
- Shiqi Zhang
- †State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Xiamen 361006, P.R. China
| | - Tian Wu
- †State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Xiamen 361006, P.R. China
| | - Meng Chen
- §Key Laboratory of Ministry of Education for Subtropical Wetland Ecosystem Research, Xiamen University, Xiamen 361006, P.R. China
| | - Zhizhun Guo
- †State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Xiamen 361006, P.R. China
| | - Zhibin Yang
- †State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Xiamen 361006, P.R. China
| | - Zhenghong Zuo
- †State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Xiamen 361006, P.R. China
- §Key Laboratory of Ministry of Education for Subtropical Wetland Ecosystem Research, Xiamen University, Xiamen 361006, P.R. China
| | - Chonggang Wang
- †State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Xiamen 361006, P.R. China
- ‡State Key Laboratory of Marine Environmental Science, Xiamen University, Xiamen 361006, P.R. China
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Mesnier A, Champion S, Louis L, Sauzet C, May P, Portugal H, Benbrahim K, Abraldes J, Alessi MC, Amiot-Carlin MJ, Peiretti F, Piccerelle P, Nalbone G, Villard PH. The Transcriptional Effects of PCB118 and PCB153 on the Liver, Adipose Tissue, Muscle and Colon of Mice: Highlighting of Glut4 and Lipin1 as Main Target Genes for PCB Induced Metabolic Disorders. PLoS One 2015; 10:e0128847. [PMID: 26086818 PMCID: PMC4473719 DOI: 10.1371/journal.pone.0128847] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2014] [Accepted: 04/30/2015] [Indexed: 12/21/2022] Open
Abstract
Epidemiological studies have associated environmental exposure to polychlorinated biphenyls (PCBs) with an increased risk of type 2 diabetes; however, little is known about the underlying mechanisms involved in the metabolic side-effects of PCB. Our study evaluated the transcriptional effects of a subchronic exposure (gavage at Day 0 and Day 15 with 10 or 100 μmol/Kg bw) to PCB118 (dioxin-like PCB), PCB153 (non-dioxin-like PCB), or an equimolar mixture of PCB118 and PCB153 on various tissues (liver, visceral adipose tissue, muscle, and colon) in mice. Our results showed that a short-term exposure to PCB118 and/or PCB153 enhanced circulating triglyceride levels but did not affect glycemia. Among the studied tissues, we did not observe any modification of the expression of inflammation-related genes, such as cytokines or chemokines. The main transcriptional effects were observed in visceral adipose and liver tissues. We found a downregulation of lipin1 and glut4 expression in these two target organs. In adipose tissue, we also showed a downregulation of Agpat2, Slc25a1, and Fasn. All of these genes are involved in lipid metabolism and insulin resistance. In muscles, we observed an induction of CnR1 and Foxo3 expression, which may be partly involved in PCB metabolic effects. In summary, our results suggest that lipin1 and glut4, notably in adipose tissue, are the main targeted genes in PCB-induced metabolic disorders, however, further studies are required to fully elucidate the mechanisms involved.
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Affiliation(s)
- Aurélia Mesnier
- IMBE (Institut Méditerranéen de Biodiversité et d'Ecologie Marine et Continentale), UMR CNRS 7263, IRD 237 Aix-Marseille Université Avignon Université, Campus Timone, Faculté de Pharmacie, 27 Boulevard Jean Moulin, F-13385, Marseille cedex 05, France
| | - Serge Champion
- IMBE (Institut Méditerranéen de Biodiversité et d'Ecologie Marine et Continentale), UMR CNRS 7263, IRD 237 Aix-Marseille Université Avignon Université, Campus Timone, Faculté de Pharmacie, 27 Boulevard Jean Moulin, F-13385, Marseille cedex 05, France
| | - Laurence Louis
- UMR S 910 Génétique Médicale et Génomique Fonctionnelle, Campus Timone, Faculté de Médecine, 27 Boulevard Jean Moulin, F-13385, Marseille cedex 05, France
| | - Christophe Sauzet
- IMBE (Institut Méditerranéen de Biodiversité et d'Ecologie Marine et Continentale), UMR CNRS 7263, IRD 237 Aix-Marseille Université Avignon Université, Campus Timone, Faculté de Pharmacie, 27 Boulevard Jean Moulin, F-13385, Marseille cedex 05, France
| | - Phealay May
- IMBE (Institut Méditerranéen de Biodiversité et d'Ecologie Marine et Continentale), UMR CNRS 7263, IRD 237 Aix-Marseille Université Avignon Université, Campus Timone, Faculté de Pharmacie, 27 Boulevard Jean Moulin, F-13385, Marseille cedex 05, France
| | - Henri Portugal
- UMR INSERM 1062, INRA 1260, Nutrition, Obésité et Risque Thrombotique (NORT), Aix-Marseille Université Campus Timone, Faculté de Médecine, 27 Boulevard Jean Moulin, F-13385, Marseille cedex 05, France
| | - Karim Benbrahim
- IMBE (Institut Méditerranéen de Biodiversité et d'Ecologie Marine et Continentale), UMR CNRS 7263, IRD 237 Aix-Marseille Université Avignon Université, Campus Timone, Faculté de Pharmacie, 27 Boulevard Jean Moulin, F-13385, Marseille cedex 05, France
| | - Joelle Abraldes
- IMBE (Institut Méditerranéen de Biodiversité et d'Ecologie Marine et Continentale), UMR CNRS 7263, IRD 237 Aix-Marseille Université Avignon Université, Campus Timone, Faculté de Pharmacie, 27 Boulevard Jean Moulin, F-13385, Marseille cedex 05, France
| | - Marie-Christine Alessi
- UMR INSERM 1062, INRA 1260, Nutrition, Obésité et Risque Thrombotique (NORT), Aix-Marseille Université Campus Timone, Faculté de Médecine, 27 Boulevard Jean Moulin, F-13385, Marseille cedex 05, France
| | - Marie-Josephe Amiot-Carlin
- UMR INSERM 1062, INRA 1260, Nutrition, Obésité et Risque Thrombotique (NORT), Aix-Marseille Université Campus Timone, Faculté de Médecine, 27 Boulevard Jean Moulin, F-13385, Marseille cedex 05, France
| | - Franck Peiretti
- UMR INSERM 1062, INRA 1260, Nutrition, Obésité et Risque Thrombotique (NORT), Aix-Marseille Université Campus Timone, Faculté de Médecine, 27 Boulevard Jean Moulin, F-13385, Marseille cedex 05, France
| | - Philippe Piccerelle
- IMBE (Institut Méditerranéen de Biodiversité et d'Ecologie Marine et Continentale), UMR CNRS 7263, IRD 237 Aix-Marseille Université Avignon Université, Campus Timone, Faculté de Pharmacie, 27 Boulevard Jean Moulin, F-13385, Marseille cedex 05, France
| | - Gilles Nalbone
- UMR INSERM 1062, INRA 1260, Nutrition, Obésité et Risque Thrombotique (NORT), Aix-Marseille Université Campus Timone, Faculté de Médecine, 27 Boulevard Jean Moulin, F-13385, Marseille cedex 05, France
| | - Pierre-Henri Villard
- IMBE (Institut Méditerranéen de Biodiversité et d'Ecologie Marine et Continentale), UMR CNRS 7263, IRD 237 Aix-Marseille Université Avignon Université, Campus Timone, Faculté de Pharmacie, 27 Boulevard Jean Moulin, F-13385, Marseille cedex 05, France
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Cui C, Wu J, Xin Y, Han Y. Highly stable palladium-loaded TiO2 nanotube array electrode for the electrocatalytic hydrodehalogenation of polychlorinated biphenyls. KOREAN J CHEM ENG 2015. [DOI: 10.1007/s11814-014-0304-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Dirinck EL, Dirtu AC, Govindan M, Covaci A, Van Gaal LF, Jorens PG. Exposure to persistent organic pollutants: relationship with abnormal glucose metabolism and visceral adiposity. Diabetes Care 2014; 37:1951-8. [PMID: 24963112 DOI: 10.2337/dc13-2329] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
OBJECTIVE The contribution of persistent organic pollutants (POPs) to the pandemic of type 2 diabetes mellitus and obesity has been assumed but remains speculative. Our study aimed at investigating the relationship of POP levels with detailed markers of glucose metabolism and body composition. RESEARCH DESIGN AND METHODS Glucose tolerance was determined in a group of normal-weight and obese individuals. Fat distribution was assessed with abdominal computed tomography (CT) scanning, determining subcutaneous adipose tissue (SAT) and visceral adipose tissue (VAT). Selected POPs (28 polychlorinated biphenyls [PCBs] and the pesticide p,p'-dichlorodiphenyldichloroethylene [p,p'-DDE]) were measured in serum. In a subset of obese individuals undergoing bariatric surgery, POPs were also measured in adipose tissue. RESULTS Among obese participants, serum and adipose tissue levels of POPs were significantly correlated to glucose levels during an oral glucose tolerance test. Logistic regression using a model including age, age(2), sex, family history of diabetes, BMI, CT-VAT, smoking behavior, physical activity level score, and a POP level identified serum levels of PCB153, the sum of PCBs and p,p'-DDE as significant predictors of abnormal glucose tolerance (odds ratio 4.6, 4.8, and 3.4, respectively; P < 0.05). Adipose tissue levels of p,p'-DDE were also significant predictors (odds ratio 81.6; P < 0.05). Serum levels of PCBs were inversely related to BMI, while serum and adipose tissue levels of all POPs were positively related to the CT-VAT/SAT ratio, suggesting an important role for the visceral fat compartment in POP dynamics. CONCLUSIONS Our findings further sustain the theory that exposure to environmentally relevant levels of POPs may exert both a diabetogenic and obesogenic effect.
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Affiliation(s)
- Eveline L Dirinck
- Department of Endocrinology, Diabetology and Metabolism, Antwerp University Hospital, Edegem, Belgium
| | - Alin C Dirtu
- Toxicology Centre, University of Antwerp, Antwerp, Belgium
| | | | - Adrian Covaci
- Toxicology Centre, University of Antwerp, Antwerp, Belgium
| | - Luc F Van Gaal
- Department of Endocrinology, Diabetology and Metabolism, Antwerp University Hospital, Edegem, Belgium
| | - Philippe G Jorens
- Department of Clinical Pharmacology, Antwerp University Hospital, Edegem, Belgium
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Simmons AL, Schlezinger JJ, Corkey BE. What Are We Putting in Our Food That Is Making Us Fat? Food Additives, Contaminants, and Other Putative Contributors to Obesity. Curr Obes Rep 2014; 3:273-85. [PMID: 25045594 PMCID: PMC4101898 DOI: 10.1007/s13679-014-0094-y] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The "chemical obesogen" hypothesis conjectures that synthetic, environmental contaminants are contributing to the global epidemic of obesity. In fact, intentional food additives (e.g., artificial sweeteners and colors, emulsifiers) and unintentional compounds (e.g., bisphenol A, pesticides) are largely unstudied in regard to their effects on overall metabolic homeostasis. With that said, many of these contaminants have been found to dysregulate endocrine function, insulin signaling, and/or adipocyte function. Although momentum for the chemical obesogen hypothesis is growing, supportive, evidence-based research is lacking. In order to identify noxious synthetic compounds in the environment out of the thousands of chemicals that are currently in use, tools and models from toxicology should be adopted (e.g., functional high throughput screening methods, zebrafish-based assays). Finally, mechanistic insight into obesogen-induced effects will be helpful in elucidating their role in the obesity epidemic as well as preventing and reversing their effects.
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Affiliation(s)
- Amber L Simmons
- Department of Medicine, Boston University Medical Center, 650 Albany St., Rm X810, Boston MA 02118, Tel.: 617-638-7088, Fax.: 617-638-7124,
| | - Jennifer J Schlezinger
- Department of Environmental Health, Boston University School of Public Health, 715 Albany St., Rm R405, Boston, MA 02118. Tel.: 617-638-6497 Fax.: 617-638-6463.
| | - Barbara E Corkey
- Department of Medicine, Boston University Medical Center, 650 Albany St., Rm X810, Boston MA 02118, Tel.: 617-638-7088, Fax.: 617-638-7124,
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Abstract
Rates of metabolic diseases have increased at an astounding rate in recent decades. Even though poor diet and physical inactivity are central drivers, these lifestyle changes alone fail to fully account for the magnitude and rapidity of the epidemic. Thus, attention has turned to identifying novel risk factors, including the contribution of environmental endocrine disrupting chemicals. Epidemiologic and preclinical data support a role for various contaminants in the pathogenesis of diabetes. In addition to the vascular risk associated with dysglycemia, emerging evidence implicates multiple pollutants in the pathogenesis of atherosclerosis and cardiovascular disease. Reviewed herein are studies linking endocrine disruptors to these key diseases that drive significant individual and societal morbidity and mortality. Identifying chemicals associated with metabolic and cardiovascular disease as well as their mechanisms of action is critical for developing novel treatment strategies and public policy to mitigate the impact of these diseases on human health.
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Affiliation(s)
- Andrew G. Kirkley
- Committee on Molecular Pathogenesis and Molecular Medicine
- University of Chicago, Chicago, IL
| | - Robert M. Sargis
- Committee on Molecular Metabolism and Nutrition
- Kovler Diabetes Center
- Section of Endocrinology, Diabetes and Metabolism
- University of Chicago, Chicago, IL
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48
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Hofe CR, Feng L, Zephyr D, Stromberg AJ, Hennig B, Gaetke LM. Fruit and vegetable intake, as reflected by serum carotenoid concentrations, predicts reduced probability of polychlorinated biphenyl-associated risk for type 2 diabetes: National Health and Nutrition Examination Survey 2003-2004. Nutr Res 2014; 34:285-93. [PMID: 24774064 PMCID: PMC4008967 DOI: 10.1016/j.nutres.2014.02.001] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2013] [Revised: 01/28/2014] [Accepted: 02/03/2014] [Indexed: 02/07/2023]
Abstract
Type 2 diabetes has been shown to occur in response to environmental and genetic influences, among them nutrition; food intake patterns; sedentary lifestyle; body mass index; and exposure to persistent organic pollutants, such as polychlorinated biphenyls (PCBs). Nutrition is essential in the prevention and management of type 2 diabetes and has been shown to modulate the toxicity of PCBs. Serum carotenoid concentrations, considered a reliable biomarker of fruit and vegetable intake, are associated with the reduced probability of chronic diseases, such as type 2 diabetes and cardiovascular disease. Our hypothesis is that fruit and vegetable intake, reflected by serum carotenoid concentrations, is associated with the reduced probability of developing type 2 diabetes in US adults with elevated serum concentrations of PCBs 118, 126, and 153. This cross-sectional study used the Center for Disease Control and Prevention database, National Health and Nutrition Examination Survey 2003-2004, in logistic regression analyses. Overall prevalence of type 2 diabetes was approximately 11.6% depending on the specific PCB. All 3 PCBs were positively associated with the probability of type 2 diabetes. For participants at higher PCB percentiles (eg, 75th and 90th) for PCB 118 and 126, increasing serum carotenoid concentrations were associated with a smaller probability of type 2 diabetes. Fruit and vegetable intake, as reflected by serum carotenoid concentrations, predicted notably reduced probability of dioxin-like PCB-associated risk for type 2 diabetes.
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Affiliation(s)
- Carolyn R Hofe
- Graduate Center for Nutritional Sciences, University of Kentucky, Lexington, KY 40506
| | - Limin Feng
- Department of Statistics, University of Kentucky, Lexington, KY 40506
| | - Dominique Zephyr
- Department of Statistics, University of Kentucky, Lexington, KY 40506
| | | | - Bernhard Hennig
- Graduate Center for Nutritional Sciences, University of Kentucky, Lexington, KY 40506; Molecular and Cell Nutrition Laboratory, University of Kentucky, Lexington, KY 40506
| | - Lisa M Gaetke
- Graduate Center for Nutritional Sciences, University of Kentucky, Lexington, KY 40506; Department of Dietetics and Human Nutrition, University of Kentucky, Lexington, KY 40506.
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