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Núñez-Gastélum JA, Hernández-Carreón S, Delgado-Ríos M, Flores-Marguez JP, Meza-Montenegro MM, Osorio-Rosas C, Cota-Ruiz K, Gardea-Torresdey JL. Study of organochlorine pesticides and heavy metals in soils of the Juarez valley: an important agricultural region between Mexico and the USA. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:36401-36409. [PMID: 31722095 DOI: 10.1007/s11356-019-06724-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/27/2019] [Accepted: 10/07/2019] [Indexed: 06/10/2023]
Abstract
The Juarez Valley is an important agricultural region in northern Mexico, conveniently organized into three modules (I to III). For decades, their soils have been exposed to organochlorine pesticides (OCPs) and also have been irrigated with wastewaters, which may contain heavy metals. Nowadays, there is very limited information regarding the presence of OCPs and heavy metals in these soils. Thus, the aim of this study was to diagnose these soils for OCPs and heavy metal content by using gas chromatography coupled with electron micro-capture detector and atomic absorption spectrometry, respectively. The results indicated that 4,4'-dichlorodiphenyldichloroethylene and 4,4'-dichlorodiphenyltrichloroethane were primarily disseminated across the three modules since they were found in 100% and 97% of the analyzed soils, respectively. According to international regulations, none of the determined OCP concentrations are out of the limits. Additionally, the Cu, Zn, Fe, Pb, and Mn were found in all sampled soils from the three modules. The highest concentration of Fe was found in module II (1902.7 ± 332.2 mg kg-1), followed by Mn in module III (392.43 ± 74.43 mg kg-1), Zn in module I (38.36 ± 26.57 mg kg-1), Pb in module II (23.48 ± 6.48 mg kg-1), and Cu in module I (11.04 ± 3.83 mg kg-1) (p ≤ 0.05). These values did not exceed the limits proposed by international standards. The Cd was detected in most of the analyzed soils and all their values, with an average of 2 mg kg-1, surpassed the Mexican standards (0.35 mg kg-1). This study has mapped the main OCPs and heavy metals in the Juarez Valley and can serve as a starting point to further monitor the behave of xenobiotics. Since these recalcitrant compounds might be bio-accumulated in biological systems, further analytical methods, as well as remediation techniques, should be developed.
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Affiliation(s)
- José A Núñez-Gastélum
- Departamento de Ciencias Químico Biológicas, Instituto de Ciencias Biomédicas, Universidad Autónoma de Ciudad Juárez, Anillo envolvente del PRONAF y Estocolmo s/n, 32310, Ciudad Juárez, Chihuahua, México.
| | - Stephanie Hernández-Carreón
- Departamento de Ciencias Químico Biológicas, Instituto de Ciencias Biomédicas, Universidad Autónoma de Ciudad Juárez, Anillo envolvente del PRONAF y Estocolmo s/n, 32310, Ciudad Juárez, Chihuahua, México
| | - Marcos Delgado-Ríos
- Departamento de Ciencias Químico Biológicas, Instituto de Ciencias Biomédicas, Universidad Autónoma de Ciudad Juárez, Anillo envolvente del PRONAF y Estocolmo s/n, 32310, Ciudad Juárez, Chihuahua, México
| | - Juan Pedro Flores-Marguez
- Departamento de Ciencias Químico Biológicas, Instituto de Ciencias Biomédicas, Universidad Autónoma de Ciudad Juárez, Anillo envolvente del PRONAF y Estocolmo s/n, 32310, Ciudad Juárez, Chihuahua, México
| | - María M Meza-Montenegro
- Departamento de Biotecnología y Ciencias Alimentarias, Instituto Tecnológico de Sonora, 85000, Cd. Obregón, Sonora, México
| | - Claudia Osorio-Rosas
- Departamento de Biotecnología y Ciencias Alimentarias, Instituto Tecnológico de Sonora, 85000, Cd. Obregón, Sonora, México
| | - Keni Cota-Ruiz
- Department of Chemistry and Biochemistry, The University of Texas at El Paso, 500 West University Avenue, El Paso, TX, 79968, USA
- UC Center for Environmental Implications of Nanotechnology (UC CEIN), The University of Texas at El Paso, 500 West University Avenue, El Paso, TX, 79968, USA
| | - Jorge L Gardea-Torresdey
- Department of Chemistry and Biochemistry, The University of Texas at El Paso, 500 West University Avenue, El Paso, TX, 79968, USA
- UC Center for Environmental Implications of Nanotechnology (UC CEIN), The University of Texas at El Paso, 500 West University Avenue, El Paso, TX, 79968, USA
- Environmental Science and Engineering Ph.D. program, The University of Texas at El Paso, 500 West University Avenue, El Paso, TX, 79968, USA
- NSF-ERC Nanotechnology-Enabled Water Treatment Center (NEWT), Houston, USA
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52
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Wahlang B, Jin J, Beier JI, Hardesty JE, Daly EF, Schnegelberger RD, Falkner KC, Prough RA, Kirpich IA, Cave MC. Mechanisms of Environmental Contributions to Fatty Liver Disease. Curr Environ Health Rep 2019; 6:80-94. [PMID: 31134516 PMCID: PMC6698418 DOI: 10.1007/s40572-019-00232-w] [Citation(s) in RCA: 72] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
PURPOSE Fatty liver disease (FLD) affects over 25% of the global population and may lead to liver-related mortality due to cirrhosis and liver cancer. FLD caused by occupational and environmental chemical exposures is termed "toxicant-associated steatohepatitis" (TASH). The current review addresses the scientific progress made in the mechanistic understanding of TASH since its initial description in 2010. RECENT FINDINGS Recently discovered modes of actions for volatile organic compounds and persistent organic pollutants include the following: (i) the endocrine-, metabolism-, and signaling-disrupting chemical hypotheses; (ii) chemical-nutrient interactions and the "two-hit" hypothesis. These key hypotheses were then reviewed in the context of the steatosis adverse outcome pathway (AOP) proposed by the US Environmental Protection Agency. The conceptual understanding of the contribution of environmental exposures to FLD has progressed significantly. However, because this is a new research area, more studies including mechanistic human data are required to address current knowledge gaps.
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Affiliation(s)
- Banrida Wahlang
- Department of Medicine, Division of Gastroenterology, Hepatology and Nutrition, University of Louisville School of Medicine, Louisville, KY, 40202, USA
- University of Louisville Superfund Research Center, University of Louisville, Louisville, KY, 40202, USA
| | - Jian Jin
- Department of Pharmacology and Toxicology, University of Louisville School of Medicine, Louisville, KY, 40202, USA
| | - Juliane I Beier
- Department of Medicine, Division of Gastroenterology, Hepatology and Nutrition, University of Pittsburgh, Pittsburgh, PA, 15213, USA
- Pittsburgh Liver Research Center, University of Pittsburgh, Pittsburgh, PA, 15213, USA
| | - Josiah E Hardesty
- Department of Medicine, Division of Gastroenterology, Hepatology and Nutrition, University of Louisville School of Medicine, Louisville, KY, 40202, USA
| | - Erica F Daly
- Department of Pharmacology and Toxicology, University of Louisville School of Medicine, Louisville, KY, 40202, USA
| | - Regina D Schnegelberger
- Department of Pharmacology and Chemical Biology, University of Pittsburgh, Pittsburgh, PA, 15213, USA
| | - K Cameron Falkner
- Department of Medicine, Division of Gastroenterology, Hepatology and Nutrition, University of Louisville School of Medicine, Louisville, KY, 40202, USA
| | - Russell A Prough
- Department of Biochemistry and Molecular Genetics, University of Louisville School of Medicine, Louisville, KY, 40202, USA
| | - Irina A Kirpich
- Department of Medicine, Division of Gastroenterology, Hepatology and Nutrition, University of Louisville School of Medicine, Louisville, KY, 40202, USA
- Hepatobiology & Toxicology COBRE Center, University of Louisville School of Medicine, Louisville, KY, 40202, USA
- University of Louisville Alcohol Research Center, University of Louisville, Louisville, KY, 40202, USA
| | - Matthew C Cave
- Department of Medicine, Division of Gastroenterology, Hepatology and Nutrition, University of Louisville School of Medicine, Louisville, KY, 40202, USA.
- University of Louisville Superfund Research Center, University of Louisville, Louisville, KY, 40202, USA.
- Department of Pharmacology and Toxicology, University of Louisville School of Medicine, Louisville, KY, 40202, USA.
- Department of Biochemistry and Molecular Genetics, University of Louisville School of Medicine, Louisville, KY, 40202, USA.
- Hepatobiology & Toxicology COBRE Center, University of Louisville School of Medicine, Louisville, KY, 40202, USA.
- University of Louisville Alcohol Research Center, University of Louisville, Louisville, KY, 40202, USA.
- The Robley Rex Veterans Affairs Medical Center, Louisville, KY, 40206, USA.
- The Jewish Hospital Liver Transplant Program, Louisville, KY, 40202, USA.
- Kosair Charities Clinical & Translational Research Building, 505 South Hancock Street, Louisville, KY, 40202, USA.
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Arévalo-Jaramillo P, Idrobo A, Salcedo L, Cabrera A, Vintimilla A, Carrión M, Bailon-Moscoso N. Biochemical and genotoxic effects in women exposed to pesticides in Southern Ecuador. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:24911-24921. [PMID: 31243655 DOI: 10.1007/s11356-019-05725-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/22/2018] [Accepted: 06/10/2019] [Indexed: 06/09/2023]
Abstract
Toxicity refers to the potential of a substance such as a pesticide to cause damage to the structure or functions of an exposed organism. Pesticides can lead to harmful biological effects in exposed animals and their offspring over the medium and long term. They can affect the immunological, nervous, endocrine, and reproductive systems. DNA damage has also been linked to exposure to pesticides, and this damage can cause abortions, degenerative diseases, and cancer. The aim of this work was to establish whether women who are indirectly exposed to pesticides exhibit a compromised health status, including genotoxic effect. Women exposed indirectly to pesticides in Chimchanga and Colaisaca in the south of Ecuador underwent hematological and biochemical tests and micronucleus assay in buccal cells. The subjects were also genotyped for GSTM1, GSTT1, GSTP1, and PON1 polymorphisms, which can modify an individual's capacity to metabolize pesticides and relation with damage of DNA. The study revealed hepatic toxicity in Colaisaca women (AST and ALT) and an increase in the rate of micronucleus (MN) in Colaisaca individuals. In addition, genetic polymorphisms in PON1 and GSTP1 showed effects of modulating the frequency of karyolytic cells, karyorrhectic cells, and condensed chromatin cells.
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Affiliation(s)
- Paulina Arévalo-Jaramillo
- Departamento de Ciencias de la Salud, Universidad Tecnica Particular de Loja, San Cayetano alto s/n, CP: 1101608, Loja, Ecuador
| | - Alicia Idrobo
- Departamento de Ciencias de la Salud, Universidad Tecnica Particular de Loja, San Cayetano alto s/n, CP: 1101608, Loja, Ecuador
| | - Lorena Salcedo
- Instituto de Ruralidades del Sur del Ecuador, Juan Jose Peña y Colon., Loja, Ecuador
| | - Andrea Cabrera
- Departamento de Ciencias de la Salud, Universidad Tecnica Particular de Loja, San Cayetano alto s/n, CP: 1101608, Loja, Ecuador
- Maestría en Análisis Biológico y Diagnóstico de Laboratorio, Departamento de Ciencias de la Salud, Universidad Tecnica Particular de Loja, San Cayetano alto s/n, CP :1101608, Loja, Ecuador
| | - Andrea Vintimilla
- Departamento de Ciencias de la Salud, Universidad Tecnica Particular de Loja, San Cayetano alto s/n, CP: 1101608, Loja, Ecuador
- Maestría en Análisis Biológico y Diagnóstico de Laboratorio, Departamento de Ciencias de la Salud, Universidad Tecnica Particular de Loja, San Cayetano alto s/n, CP :1101608, Loja, Ecuador
| | - Mayra Carrión
- Departamento de Ciencias de la Salud, Universidad Tecnica Particular de Loja, San Cayetano alto s/n, CP: 1101608, Loja, Ecuador
- Maestría en Análisis Biológico y Diagnóstico de Laboratorio, Departamento de Ciencias de la Salud, Universidad Tecnica Particular de Loja, San Cayetano alto s/n, CP :1101608, Loja, Ecuador
| | - Natalia Bailon-Moscoso
- Departamento de Ciencias de la Salud, Universidad Tecnica Particular de Loja, San Cayetano alto s/n, CP: 1101608, Loja, Ecuador.
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Lee DH, Porta M, Lind L, Lind PM, Jacobs DR. Neurotoxic chemicals in adipose tissue: A role in puzzling findings on obesity and dementia. Neurology 2019; 90:176-182. [PMID: 29358509 DOI: 10.1212/wnl.0000000000004851] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2016] [Accepted: 10/26/2017] [Indexed: 12/28/2022] Open
Abstract
Midlife obesity is associated with increased risk of dementia, whereas late-life obesity is commonly associated with a lower risk of dementia. Although methodologic issues are often discussed in this apparent risk reversal, chronic exposure to low-dose organochlorine pesticides (OCPs), an emerging risk factor for dementia in general populations, may contribute to a direct explanation for these differences. OCPs are strong lipophilic chemicals with very long half-lives (several years), primarily stored in adipose tissue and very slowly released and metabolized over years. As serum concentrations of neurotoxic OCPs strongly correlate with brain OCPs (r = 0.95), any condition enhancing the release of OCPs from the adipose tissue into circulation would increase the risk of dementia. Increased release of OCPs from adipose tissue typically occurs in (1) dysfunctional adipocytes accompanied by uncontrolled lipolysis and (2) weight loss. Weight gain may help sequester circulating OCPs in adipose tissue. As obesity is the most common reason that adipocytes become dysfunctional, midlife obesity can increase dementia risk through the chronic release of OCPs into circulation. However, late-life obesity potentially decreases dementia risk because weight loss after midlife will increase the release of OCPs while weight gain may actually decrease the release. These countervailing forces may underlie paradoxical associations with dementia of obesity in midlife vs late life which is influenced by weight change after midlife. This hypothesis should be tested in future experimental and human studies on obesity and dementia.
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Affiliation(s)
- Duk-Hee Lee
- From the Department of Preventive Medicine (D.-H.L.), School of Medicine, Kyungpook National University, Daegu; BK21 Plus KNU Biomedical Convergence Program (D.-H.L.), Department of Biomedical Science, Kyungpook National University, Korea; Hospital del Mar Institute of Medical Research (IMIM) (M.P.), School of Medicine, Universitat Autonoma de Barcelona, and CIBERESP, Spain; Department of Medical Sciences, Cardiovascular Epidemiology (L.L.), and Department of Medical Sciences, Occupational and Environmental Medicine (P.M.L.), Uppsala University, Sweden; and Division of Epidemiology and Community Health (D.R.J.), School of Public Health, University of Minnesota, Minneapolis.
| | - Miquel Porta
- From the Department of Preventive Medicine (D.-H.L.), School of Medicine, Kyungpook National University, Daegu; BK21 Plus KNU Biomedical Convergence Program (D.-H.L.), Department of Biomedical Science, Kyungpook National University, Korea; Hospital del Mar Institute of Medical Research (IMIM) (M.P.), School of Medicine, Universitat Autonoma de Barcelona, and CIBERESP, Spain; Department of Medical Sciences, Cardiovascular Epidemiology (L.L.), and Department of Medical Sciences, Occupational and Environmental Medicine (P.M.L.), Uppsala University, Sweden; and Division of Epidemiology and Community Health (D.R.J.), School of Public Health, University of Minnesota, Minneapolis
| | - Lars Lind
- From the Department of Preventive Medicine (D.-H.L.), School of Medicine, Kyungpook National University, Daegu; BK21 Plus KNU Biomedical Convergence Program (D.-H.L.), Department of Biomedical Science, Kyungpook National University, Korea; Hospital del Mar Institute of Medical Research (IMIM) (M.P.), School of Medicine, Universitat Autonoma de Barcelona, and CIBERESP, Spain; Department of Medical Sciences, Cardiovascular Epidemiology (L.L.), and Department of Medical Sciences, Occupational and Environmental Medicine (P.M.L.), Uppsala University, Sweden; and Division of Epidemiology and Community Health (D.R.J.), School of Public Health, University of Minnesota, Minneapolis
| | - P Monica Lind
- From the Department of Preventive Medicine (D.-H.L.), School of Medicine, Kyungpook National University, Daegu; BK21 Plus KNU Biomedical Convergence Program (D.-H.L.), Department of Biomedical Science, Kyungpook National University, Korea; Hospital del Mar Institute of Medical Research (IMIM) (M.P.), School of Medicine, Universitat Autonoma de Barcelona, and CIBERESP, Spain; Department of Medical Sciences, Cardiovascular Epidemiology (L.L.), and Department of Medical Sciences, Occupational and Environmental Medicine (P.M.L.), Uppsala University, Sweden; and Division of Epidemiology and Community Health (D.R.J.), School of Public Health, University of Minnesota, Minneapolis
| | - David R Jacobs
- From the Department of Preventive Medicine (D.-H.L.), School of Medicine, Kyungpook National University, Daegu; BK21 Plus KNU Biomedical Convergence Program (D.-H.L.), Department of Biomedical Science, Kyungpook National University, Korea; Hospital del Mar Institute of Medical Research (IMIM) (M.P.), School of Medicine, Universitat Autonoma de Barcelona, and CIBERESP, Spain; Department of Medical Sciences, Cardiovascular Epidemiology (L.L.), and Department of Medical Sciences, Occupational and Environmental Medicine (P.M.L.), Uppsala University, Sweden; and Division of Epidemiology and Community Health (D.R.J.), School of Public Health, University of Minnesota, Minneapolis
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Hao Z, Zhang Z, Lu D, Ding B, Shu L, Zhang Q, Wang C. Organophosphorus Flame Retardants Impair Intracellular Lipid Metabolic Function in Human Hepatocellular Cells. Chem Res Toxicol 2019; 32:1250-1258. [PMID: 30966736 DOI: 10.1021/acs.chemrestox.9b00058] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Organophosphorus flame retardants (OPFRs), a replacement for brominated flame retardants, have gradually been accepted as endocrine disrupting chemicals (EDCs). Recently, evidence has shown that these EDCs could cause chronic health problems, such as obesity, and referred to as metabolic disruptors. However, the disturbance to lipid metabolism caused by OPFRs remains poorly understood, especially at biological molecular levels. Herein, we used the human hepatocellular cells (HepG2) to study the lipid metabolism disruption caused by nine OPFRs (halogenated-, aryl-, and alkyl-containing). All the tested OPFRs, excluding the long carbon chain alkyl-OPFRs, could cause intracellular triglyceride (TG) and/or total cholesterol (TC) accumulation. In detail, aryl-OPFRs (TPhP and TCP) induced both TC and TG deposition. Halogenated-OPFRs (TCEP, TBPP, TDCPP, and TCPP) induced intracellular TG accumulation, and only TDCPP also induced TC accumulation. Furthermore, TPhP induced lipid accumulation through regulation genes encoding proteins involved in fatty acid β-oxidation, lipid, and fatty acid synthesis. All the halogenated-OPFRs cause TG accumulation only, enacted through β-oxidation rather than lipid synthesis. TPhP and TDCPP induced TC accumulation through both PPARγ and srebp2 signaling. Mitochondrial dysfunction including decreased oxygen consumption rate and ATP content may also contribute to lipid metabolic disruption by the tested OPFRs. Our data indicated that halogenated- and aryl-OPFRs may not be safe candidates, and further information should be made available as potential for, as well as the mechanism of, metabolic disruption. And long carbon chain alkyl-OPFRs may be safer than the other two groups.
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Affiliation(s)
- Zhengliang Hao
- College of Life Science , Zhejiang Chinese Medical University , Hangzhou 310053 , Zhejiang People's Republic of China
| | - Zhijie Zhang
- College of Life Science , Zhejiang Chinese Medical University , Hangzhou 310053 , Zhejiang People's Republic of China
| | - Dezhao Lu
- College of Life Science , Zhejiang Chinese Medical University , Hangzhou 310053 , Zhejiang People's Republic of China
| | - Bin Ding
- College of Life Science , Zhejiang Chinese Medical University , Hangzhou 310053 , Zhejiang People's Republic of China
| | - Lin Shu
- Key Laboratory of Microbial Technology for Industrial Pollution Control of Zhejiang University of Technology , Hangzhou 310032 , Zhejiang People's Republic of China
| | - Quan Zhang
- Key Laboratory of Microbial Technology for Industrial Pollution Control of Zhejiang University of Technology , Hangzhou 310032 , Zhejiang People's Republic of China
| | - Cui Wang
- College of Life Science , Zhejiang Chinese Medical University , Hangzhou 310053 , Zhejiang People's Republic of China
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Matsuzaka Y, Uesawa Y. Optimization of a Deep-Learning Method Based on the Classification of Images Generated by Parameterized Deep Snap a Novel Molecular-Image-Input Technique for Quantitative Structure-Activity Relationship (QSAR) Analysis. Front Bioeng Biotechnol 2019; 7:65. [PMID: 30984753 PMCID: PMC6447703 DOI: 10.3389/fbioe.2019.00065] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2018] [Accepted: 03/07/2019] [Indexed: 12/22/2022] Open
Abstract
Numerous chemical compounds are distributed around the world and may affect the homeostasis of the endocrine system by disrupting the normal functions of hormone receptors. Although the risks associated with these compounds have been evaluated by acute toxicity testing in mammalian models, the chronic toxicity of many chemicals remains due to high cost of the compounds and the testing, etc. However, computational approaches may be promising alternatives and reduce these evaluations. Recently, deep learning (DL) has been shown to be promising prediction models with high accuracy for recognition of images, speech, signals, and videos since it greatly benefits from large datasets. Recently, a novel DL-based technique called DeepSnap was developed to conduct QSAR analysis using three-dimensional images of chemical structures. It can be used to predict the potential toxicity of many different chemicals to various receptors without extraction of descriptors. DeepSnap has been shown to have a very high capacity in tests using Tox21 quantitative qHTP datasets. Numerous parameters must be adjusted to use the DeepSnap method but they have not been optimized. In this study, the effects of these parameters on the performance of the DL prediction model were evaluated in terms of the loss in validation as an indicator for evaluating the performance of the DL using the toxicity information in the Tox21 qHTP database. The relations of the parameters of DeepSnap such as (1) number of molecules per SDF split into (2) zoom factor percentage, (3) atom size for van der waals percentage, (4) bond radius, (5) minimum bond distance, and (6) bond tolerance, with the validation loss following quadratic function curves, which suggests that optimal thresholds exist to attain the best performance with these prediction models. Using the parameter values set with the best performance, the prediction model of chemical compounds for CAR agonist was built using 64 images, at 105° angle, with AUC of 0.791. Thus, based on these parameters, the proposed DeepSnap-DL approach will be highly reliable and beneficial to establish models to assess the risk associated with various chemicals.
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Affiliation(s)
| | - Yoshihiro Uesawa
- Department of Medical Molecular Informatics, Meiji Pharmaceutical University, Tokyo, Japan
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57
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Elmore SE, La Merrill MA. Oxidative Phosphorylation Impairment by DDT and DDE. Front Endocrinol (Lausanne) 2019; 10:122. [PMID: 30915030 PMCID: PMC6422878 DOI: 10.3389/fendo.2019.00122] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/04/2018] [Accepted: 02/11/2019] [Indexed: 01/07/2023] Open
Abstract
There is increasing evidence supporting the characterization of the pesticide DDT and its metabolite, DDE, as obesogens and metabolic disruptors. Elucidating the mechanism is critical to understanding whether the association of DDT and DDE with obesity and diabetes is in fact causal. One area of research investigating the etiology of metabolic diseases is mitochondrial toxicity. Several studies have found associations between mitochondrial defects and insulin resistance, cellular respiration, substrate utilization, and energy expenditure. Although the mitotoxicity of DDT and DDE was established 20-40 years ago, it was not viewed in the light of the diseases faced today; therefore, it is prudent to reexamine the mitotoxicity literature for mechanistic support of DDT and DDE as causal contributors to obesity and diabetes, as well as associated diseases, such as cancer and Alzheimer's disease. This review aims to focus on studies investigating the effect of DDT or DDE on mammalian mitochondrial oxidative phosphorylation. We illustrate that both DDT and DDE impair the electron transport chain (ETC) and oxidative phosphorylation. We conclude that there is reasonable data to suggest that DDT and DDE target specific complexes and processes within the mitochondria, and that these insults could in turn contribute to the role of DDT and DDE in mitochondria-associated diseases.
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Yun T, Hua J, Ye W, Yu B, Ni Z, Chen L, Zhang C. Comparative proteomic analysis revealed complex responses to classical/novel duck reovirus infections in the spleen tissue of Cairna moschata. J Proteomics 2018; 193:162-172. [PMID: 30339941 DOI: 10.1016/j.jprot.2018.10.006] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2018] [Revised: 10/09/2018] [Accepted: 10/15/2018] [Indexed: 12/16/2022]
Abstract
Duck reovirus (DRV), a member of the genus Orthoreovirus in the family Reoviridae, was first isolated from Muscovy ducks. The disease associated with DRV causes great economic losses to the duck industry. However, the responses of duck (Cairna moschata) to the classical/novel DRV (C/NDRV) infections are largely unknown. To reveal the relationship of pathogenesis and immune response, the proteomes of duck spleen cells under the control and C/NDRV infections were compared. In total, 5986 proteins were identified, of which 5389 proteins were quantified. The different accumulated proteins (DAPs) under the C/NDRV infections showed displayed various biological functions and diverse subcellular localizations. The proteins related to the serine protease system were siginificantly changed, suggesting that the activated serine protease system may play an important role under the C/NDRV infections. Furthermore, the differences in the responses to the C/NRDV infections between the duck liver and spleen tissues were compared. Only a small number of common DAPs were identified in both liver and spleen tissues, suggesting diversified pattern involved in the responses to the C/NRDV infections. However, the changes in the proteins involved in the serine protease systems were similar in both liver and spleen cells. Our data may give a comprehensive resource for investigating the responses to C/NDRV infections in ducks. SIGNIFICANCE: A newly developed MS/MS-based method involving isotopomer labels and 'tandem mass' has been applied to protein accurate quantification in current years. However, no studies on the responses of duck (Cairna moschata) spleen tissue to the classical/novel DRV (C/NDRV) infections have been performed. As a continued study of our previous report on the responses of duck liver tissue to the C/NDRV infections, the current study further compared the differences in the responses to the C/NRDV infections between the duck liver and spleen tissues. Our results will provide an opportunity to reveal the relationship of pathogenesis and immune response and basic information on the pathogenicity of C/NDRV in ducks.
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Affiliation(s)
- Tao Yun
- Institute of Animal Husbandry and Veterinary Sciences, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
| | - Jionggang Hua
- Institute of Animal Husbandry and Veterinary Sciences, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
| | - Weicheng Ye
- Institute of Animal Husbandry and Veterinary Sciences, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
| | - Bin Yu
- Institute of Animal Husbandry and Veterinary Sciences, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
| | - Zheng Ni
- Institute of Animal Husbandry and Veterinary Sciences, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
| | - Liu Chen
- Institute of Animal Husbandry and Veterinary Sciences, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
| | - Cun Zhang
- Institute of Animal Husbandry and Veterinary Sciences, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China.
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Howell GE, McDevitt E, Henein L, Mulligan C, Young D. Alterations in cellular lipid metabolism produce neutral lipid accumulation following exposure to the organochlorine compound trans-nonachlor in rat primary hepatocytes. ENVIRONMENTAL TOXICOLOGY 2018; 33:962-971. [PMID: 29964320 PMCID: PMC6105551 DOI: 10.1002/tox.22583] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2018] [Revised: 05/21/2018] [Accepted: 05/28/2018] [Indexed: 05/16/2023]
Abstract
Recent epidemiological studies have revealed significant positive associations between exposure to organochlorine (OC) pesticides and occurrence of the metabolic syndrome and there are a growing number of animal-based studies to support causality. However, the cellular mechanisms linking OC compound exposure and metabolic dysfunction remain elusive. Therefore, the present study was designed to determine if direct exposure to three highly implicated OC compounds promoted hepatic steatosis, the hepatic ramification of the metabolic syndrome. First, the steatotic effect of p,p'-dichlorodiphenyldichloroethylene (DDE), oxychlordane, and trans-nonachlor was determined in freshly isolated rat primary hepatocytes. Exposure to trans-nonachlor significantly increased neutral lipid accumulation as opposed to DDE and oxychlordane. To determine possible mechanisms governing increased fatty acid availability, the effects of trans-nonachlor exposure on fatty acid uptake, de novo lipogenesis, triglyceride secretion, and fatty acid oxidation were explored. Trans-nonachlor did not significantly alter fatty acid uptake. However, insulin-stimulated de novo lipogenesis as well as basal expression of fatty acid synthase, a major regulator of lipogenesis were significantly increased following trans-nonachlor exposure. Interestingly, there was a significant decrease in fatty acid oxidation following trans-nonachlor exposure. This decrease in fatty acid oxidation was accompanied by a slight, but significant increase in oleic acid-induced cellular triglyceride secretion. Therefore, taken together, the present data indicate direct exposure to trans-nonachlor has a more potent pro-steatotic effect than exposure to DDE or oxychlordane. This pro-steatotic effect of trans-nonachlor appears to be predominately mediated via increased de novo lipogenesis and decreased fatty acid oxidation.
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Affiliation(s)
- George Eli Howell
- Mississippi State University College of Veterinary Medicine, Department of Basic Sciences, Mississippi State, MS 39762
- Corresponding author: George Eli Howell III, Ph.D, 240 Wise Center Drive, P.O. Box 6100, Mississippi State, MS 39762, Phone: 601-420-4707, Fax: 662-325-1031,
| | - Erin McDevitt
- Mississippi State University College of Veterinary Medicine, Department of Basic Sciences, Mississippi State, MS 39762
| | - Lucie Henein
- Mississippi State University College of Veterinary Medicine, Department of Basic Sciences, Mississippi State, MS 39762
| | - Charlee Mulligan
- Mississippi State University College of Veterinary Medicine, Department of Basic Sciences, Mississippi State, MS 39762
| | - Darian Young
- Mississippi State University College of Veterinary Medicine, Department of Basic Sciences, Mississippi State, MS 39762
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60
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Sun H, Liu Q, Hu H, Jiang Y, Shao W, Wang Q, Jiang Z, Gu A. Berberine ameliorates blockade of autophagic flux in the liver by regulating cholesterol metabolism and inhibiting COX2-prostaglandin synthesis. Cell Death Dis 2018; 9:824. [PMID: 30068904 PMCID: PMC6070517 DOI: 10.1038/s41419-018-0890-5] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2018] [Revised: 07/12/2018] [Accepted: 07/17/2018] [Indexed: 02/06/2023]
Abstract
Excessive cholesterol contributes to the development of cardiovascular diseases. Berberine (BBR) has been reported to regulate cholesterol homeostasis. Here, we found that BBR could ameliorate the hepatic autophagic flux blockade caused by cholesterol overloading. The underlying mechanism included lowering hepatic cholesterol level, modulating the cholesterol distribution targeting the plasma membrane by decreasing sterol carrier protein 2 expression and inhibiting cyclooxygenase 2-mediated production of prostaglandin metabolites, which decreased the phosphorylation of Akt/mTOR. Our study provides evidences that BBR could be a therapeutic agent for protecting liver under cholesterol overloading via the regulation of autophagic flux.
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Affiliation(s)
- Haidong Sun
- Center of Gallbladder Disease, Shanghai East Hospital, Institute of Gallstone Disease, Tongji University School of Medicine, Shanghai, China
| | - Qian Liu
- State Key Laboratory of Reproductive Medicine, Institute of Toxicology, Nanjing Medical University, Nanjing, China.,Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Hai Hu
- Center of Gallbladder Disease, Shanghai East Hospital, Institute of Gallstone Disease, Tongji University School of Medicine, Shanghai, China
| | | | - Wentao Shao
- State Key Laboratory of Reproductive Medicine, Institute of Toxicology, Nanjing Medical University, Nanjing, China.,Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Qihan Wang
- Center of Gallbladder Disease, Shanghai East Hospital, Institute of Gallstone Disease, Tongji University School of Medicine, Shanghai, China
| | - Zhaoyan Jiang
- Center of Gallbladder Disease, Shanghai East Hospital, Institute of Gallstone Disease, Tongji University School of Medicine, Shanghai, China.
| | - Aihua Gu
- State Key Laboratory of Reproductive Medicine, Institute of Toxicology, Nanjing Medical University, Nanjing, China. .,Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing, China.
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61
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Li S, Wang C. Study on the potential way of hepatic cytotoxicity of N,N-dimethylformamide. J Biochem Mol Toxicol 2018; 32:e22190. [PMID: 29984871 DOI: 10.1002/jbt.22190] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2018] [Revised: 06/16/2018] [Accepted: 06/25/2018] [Indexed: 01/14/2023]
Abstract
The intermediate metabolites and redox status imbalance were supported as the two major points for N,N-dimethylformamide (DMF)-induced hepatotoxicity. However, the potential mechanism has not yet been concerned. By applying two inhibitors, this study tried to seek the major role in DMF-induced toxicity on HL7702 cell. We observed that DMF induced cell apoptosis through mitochondrial-dependent and p53 pathway. Inhibition reactive oxygen species by catalase remarkably attenuated the mitochondrial transmembrane potential (MMP), apoptotic proteins, and apoptosis. On the contrary, it reduced the biodegradation rate of DMF by coincubation with CYP2E1 antagonist (DDC) partially reduced late apoptosis. However, the change in MMP, the ratio of Bax to Bcl-xl, and cleaved-caspase 9 was not attenuated by DDC. The pathway in DDC coincubation groups was related to the p53 rather than the mitochondrial pathway. Restoring the redox balance during biodegradation is much more effective than attenuating the metabolite rate of DMF. This study may provide a suitable prevention method to occupational workers.
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Affiliation(s)
- Shiqing Li
- College of Pharmacy, Zhejiang Chinese Medical University, Hangzhou, 310053, China
| | - Cui Wang
- College of Life Science, Zhejiang Chinese Medical University, Hangzhou, 310053, China
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62
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Yun T, Hua J, Ye W, Yu B, Chen L, Ni Z, Zhang C. Comparative proteomic analysis revealed complex responses to classical/novel duck reovirus infections in Cairna moschata. Sci Rep 2018; 8:10079. [PMID: 29973707 PMCID: PMC6031628 DOI: 10.1038/s41598-018-28499-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2018] [Accepted: 06/20/2018] [Indexed: 02/07/2023] Open
Abstract
Duck reovirus (DRV) is an typical aquatic bird pathogen belonging to the Orthoreovirus genus of the Reoviridae family. Reovirus causes huge economic losses to the duck industry. Although DRV has been identified and isolated long ago, the responses of Cairna moschata to classical/novel duck reovirus (CDRV/NDRV) infections are largely unknown. To investigate the relationship of pathogenesis and immune response, proteomes of C. moschata liver cells under the C/NDRV infections were analyzed, respectively. In total, 5571 proteins were identified, among which 5015 proteins were quantified. The differential expressed proteins (DEPs) between the control and infected liver cells displayed diverse biological functions and subcellular localizations. Among the DEPs, most of the metabolism-related proteins were down-regulated, suggesting a decrease in the basal metabolisms under C/NDRV infections. Several important factors in the complement, coagulation and fibrinolytic systems were significantly up-regulated by the C/NDRV infections, indicating that the serine protease-mediated innate immune system might play roles in the responses to the C/NDRV infections. Moreover, a number of molecular chaperones were identified, and no significantly changes in their abundances were observed in the liver cells. Our data may give a comprehensive resource for investigating the regulation mechanism involved in the responses of C. moschata to the C/NDRV infections.
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Affiliation(s)
- Tao Yun
- Institute of Animal Husbandry and Veterinary Sciences, Zhejiang Academy of Agricultural Sciences, Hangzhou, 310021, China
| | - Jionggang Hua
- Institute of Animal Husbandry and Veterinary Sciences, Zhejiang Academy of Agricultural Sciences, Hangzhou, 310021, China
| | - Weicheng Ye
- Institute of Animal Husbandry and Veterinary Sciences, Zhejiang Academy of Agricultural Sciences, Hangzhou, 310021, China
| | - Bin Yu
- Institute of Animal Husbandry and Veterinary Sciences, Zhejiang Academy of Agricultural Sciences, Hangzhou, 310021, China
| | - Liu Chen
- Institute of Animal Husbandry and Veterinary Sciences, Zhejiang Academy of Agricultural Sciences, Hangzhou, 310021, China
| | - Zheng Ni
- Institute of Animal Husbandry and Veterinary Sciences, Zhejiang Academy of Agricultural Sciences, Hangzhou, 310021, China
| | - Cun Zhang
- Institute of Animal Husbandry and Veterinary Sciences, Zhejiang Academy of Agricultural Sciences, Hangzhou, 310021, China.
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Morales-Prieto N, Ruiz-Laguna J, Sheehan D, Abril N. Transcriptome signatures of p,p´-DDE-induced liver damage in Mus spretus mice. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2018; 238:150-167. [PMID: 29554563 DOI: 10.1016/j.envpol.2018.03.005] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2017] [Revised: 02/19/2018] [Accepted: 03/04/2018] [Indexed: 06/08/2023]
Abstract
The use of DDT (1,1,1-trichloro-2,2-bis(p-chlorophenyl) ethane) in some countries, although regulated, is contributing to an increased worldwide risk of exposure to this organochlorine pesticide or its derivative p,p'-DDE [1,1-dichloro-2,2-bis(p-chlorophenyl) ethylene]. Many studies have associated p,p'-DDE exposure to type 2 diabetes, obesity and alterations of the reproductive system, but their molecular mechanisms of toxicity remain poorly understood. We have addressed this issue by using commercial microarrays based on probes for the entire Mus musculus genome to determine the hepatic transcriptional signatures of p,p'-DDE in the phylogenetically close mouse species Mus spretus. High-stringency hybridization conditions and analysis assured reliable results, which were also verified, in part, by qRT-PCR, immunoblotting and/or enzymatic activity. Our data linked 198 deregulated genes to mitochondrial dysfunction and perturbations of central signaling pathways (kinases, lipids, and retinoic acid) leading to enhanced lipogenesis and aerobic glycolysis, inflammation, cell proliferation and testosterone catabolism and excretion. Alterations of transcript levels of genes encoding enzymes involved in testosterone catabolism and excretion would explain the relationships established between p,p´-DDE exposure and reproductive disorders, obesity and diabetes. Further studies will help to fully understand the molecular basis of p,p´-DDE molecular toxicity in liver and reproductive organs, to identify effective exposure biomarkers and perhaps to design efficient p,p'-DDE exposure counteractive strategies.
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Affiliation(s)
- Noelia Morales-Prieto
- Departamento de Bioquímica y Biología Molecular, Campus de Excelencia Internacional Agroalimentario CeiA3, Universidad de Córdoba, Campus de Rabanales, Edificio Severo Ochoa, E-14071, Córdoba, Spain
| | - Julia Ruiz-Laguna
- Departamento de Bioquímica y Biología Molecular, Campus de Excelencia Internacional Agroalimentario CeiA3, Universidad de Córdoba, Campus de Rabanales, Edificio Severo Ochoa, E-14071, Córdoba, Spain
| | - David Sheehan
- College of Arts and Science, Khalifa University of Science and Technology, PO Box 127788, Abu Dhabi, United Arab Emirates
| | - Nieves Abril
- Departamento de Bioquímica y Biología Molecular, Campus de Excelencia Internacional Agroalimentario CeiA3, Universidad de Córdoba, Campus de Rabanales, Edificio Severo Ochoa, E-14071, Córdoba, Spain.
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64
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Sun H, Shao W, Liu H, Jiang Z. Exposure to 2,4-dichlorophenoxyacetic acid induced PPARβ-dependent disruption of glucose metabolism in HepG2 cells. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2018; 25:17050-17057. [PMID: 29633193 DOI: 10.1007/s11356-018-1921-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2018] [Accepted: 04/02/2018] [Indexed: 06/08/2023]
Abstract
2,4-Dichlorophenoxyacetic acid is one of the most widely used herbicides. Its impact on health is increasingly attracting great attentions. This study aimed to investigate the effect of 2,4-dichlorophenoxyacetic acid on glucose metabolism in HepG2 cells and the underlying mechanism. After 24 h exposure to 2,4-dichlorophenoxyacetic acid, glycogen was measured by PAS staining and glucose by ELISA in HepG2 cells. The expression of genes involved in glucose metabolism was measured by real-time PCR, Western blotting, and immunofluorescence. HepG2 cells presented more extracellular glucose consumption and glycogen content after exposed to 2,4-dichlorophenoxyacetic acid. Expression of gluconeogenesis-related genes, FoxO1, and CREB is significantly elevated. Moreover, PPARβ was up-regulated dose-dependently. SiRNA knockdown of PPARβ completely rescued the increase of glycogen accumulation and glucose uptake, and the up-regulation of FOXO1 and CREB expression. Our findings propose novel mechanisms that 2,4-dichlorophenoxyacetic acid causes glucose metabolism dysfunction through PPARβ in HepG2 cells.
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Affiliation(s)
- Haidong Sun
- Department of Surgery, Shanghai Institute of Digestive Surgery, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, 125 Ruijin Er Road, Shanghai, 200025, China
| | - Wentao Shao
- State Key Laboratory of Reproductive Medicine, Institute of Toxicology, Nanjing Medical University, Nanjing, 211166, Jiangsu Province, China
| | - Hui Liu
- State Key Laboratory of Reproductive Medicine, Institute of Toxicology, Nanjing Medical University, Nanjing, 211166, Jiangsu Province, China
| | - Zhaoyan Jiang
- Department of Surgery, Shanghai Institute of Digestive Surgery, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, 125 Ruijin Er Road, Shanghai, 200025, China.
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65
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Lee YM, Jacobs Jr. DR, Lee DH. Persistent Organic Pollutants and Type 2 Diabetes: A Critical Review of Review Articles. Front Endocrinol (Lausanne) 2018; 9:712. [PMID: 30542326 PMCID: PMC6277786 DOI: 10.3389/fendo.2018.00712] [Citation(s) in RCA: 57] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/31/2018] [Accepted: 11/12/2018] [Indexed: 12/22/2022] Open
Abstract
Low dose persistent organic pollutants (POPs) have emerged as a new risk for type 2 diabetes (T2D). Despite substantial evidence from human and experimental studies, there are several critical issues which have not been properly addressed by POPs researchers. First, as POPs exist as mixtures, findings about POPs from human studies should be interpreted from the viewpoint of lipophilic chemical mixtures which include both measured and unmeasured POPs. Second, as POPs can directly reduce insulin secretion of beta cells, the role of POPs may be more prominent in the development of beta-cell dysfunction-dominant T2D rather than insulin resistance-dominant T2D. Third, there are multidimensional interrelationships between POPs and adipose tissue. Even though POPs are now considered as a new risk factor for T2D, independent of obesity, POPs and obesity are mechanistically linked to each other. POPs are involved in key mechanisms linking obesity and T2D, such as chronic inflammation of adipose tissue and lipotoxicity with ectopic fat accumulation. Also, POPs can explain puzzling human findings which suggest benefits of obesity because healthy adipose tissue can be protective by reducing the amount of POPs reaching other organs. Fourth, non-linear dose-response relationships between POPs and T2D are biologically possible. Although POPs are well-known endocrine disrupting chemicals (EDCs), mitochondrial dysfunction may be a more plausible mechanism due to unpredictability of EDC mixtures. As adipose tissue plays a role as an internal exposure source of POPs, how to manage POPs inside us may be essential to protect against harms of POPs.
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Affiliation(s)
- Yu-Mi Lee
- Department of Preventive Medicine, School of Medicine, Kyungpook National University, Daegu, South Korea
| | - David R. Jacobs Jr.
- Division of Epidemiology and Community Health, School of Public Health, University of Minnesota, Minneapolis, MN, United States
| | - Duk-Hee Lee
- Department of Preventive Medicine, School of Medicine, Kyungpook National University, Daegu, South Korea
- BK21 Plus KNU Biomedical Convergence Program, Department of Biomedical Science, Kyungpook National University, DaeguSouth Korea
- *Correspondence: Duk-Hee Lee
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66
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Olsvik PA, Søfteland L. Metabolic effects of p,p′-DDE on Atlantic salmon hepatocytes. J Appl Toxicol 2017; 38:489-503. [DOI: 10.1002/jat.3556] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2017] [Revised: 09/28/2017] [Accepted: 09/29/2017] [Indexed: 11/08/2022]
Affiliation(s)
- Pål A. Olsvik
- National Institute of Nutrition and Seafood Research (NIFES), Bergen; Norway
- Faculty of Biosciences and Aquaculture; Nord University; Bodø Norway
| | - Liv Søfteland
- National Institute of Nutrition and Seafood Research (NIFES), Bergen; Norway
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Morales-Prieto N, Abril N. REDOX proteomics reveals energy metabolism alterations in the liver of M. spretus mice exposed to p, p'-DDE. CHEMOSPHERE 2017; 186:848-863. [PMID: 28826133 DOI: 10.1016/j.chemosphere.2017.08.057] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2017] [Revised: 07/27/2017] [Accepted: 08/11/2017] [Indexed: 06/07/2023]
Abstract
The toxicity induced by the pesticide 2,2-bis(p-chlorophenyl)-1,1,1,-trichloroethane (DDT) and its derivative 1,1-dichloro-2,2-bis(p-chlorophenyl)ethylene (p,p'-DDE) has been associated with mitochondrial dysfunction, uncoupling of oxidative phosphorylation and respiratory chain electron transport, intracellular ion imbalance, generation of reactive oxygen species and impairment of the antioxidant defense system. A disruption in the cellular redox status causes protein Cys-based regulatory shifts that influence the activity of many proteins and trigger signal transduction alterations. Here, we analyzed the ability of p,p'-DDE to alter the activities of hepatic antioxidants and glycolytic enzymes to investigate the oxidative stress generation in the liver of p,p'-DDE-fed M. spretus mice. We also determined the consequences of the treatment on the redox status in the thiol Cys groups. The data indicate that the liver of p,p'-DDE exposed mice lacks certain protective enzymes, and p,p'-DDE caused a metabolic reprogramming that increased the glycolytic rate and disturbed the metabolism of lipids. Our results suggested that the overall metabolism of the liver was altered because important signaling pathways are controlled by p,p'-DDE-deregulated proteins. The histological data support the proposed metabolic consequences of the p,p'-DDE exposure.
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Affiliation(s)
- Noelia Morales-Prieto
- Departamento de Bioquímica y Biología Molecular, Campus de Excelencia Internacional Agroalimentario CeiA3, Universidad de Córdoba, Campus de Rabanales, Edificio Severo Ochoa, E-14071, Córdoba, España, Spain
| | - Nieves Abril
- Departamento de Bioquímica y Biología Molecular, Campus de Excelencia Internacional Agroalimentario CeiA3, Universidad de Córdoba, Campus de Rabanales, Edificio Severo Ochoa, E-14071, Córdoba, España, Spain.
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68
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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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Wang Q, Liu M, Xu L, Wu Y, Huang Y. Transcriptome analysis reveals the molecular mechanism of hepatic fat metabolism disorder caused by Muscovy duck reovirus infection. Avian Pathol 2017; 47:127-139. [PMID: 28911249 DOI: 10.1080/03079457.2017.1380294] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The aim of this work was to clarify the molecular mechanism underlying the fatty degeneration of livers infected with Muscovy duck reovirus (MDRV), which produces obvious white necrotic foci in the liver. Transcriptome data for MDRV-infected Muscovy duck livers and control livers were sequenced, assembled, and annotated with Illumina® HiSeq 2000. The differentially expressed genes were screened and their functions were analysed. We also determined and confirmed the molecular mechanism of the hepatic fat metabolism disorder caused by MDRV infection. The expression of 4190 genes was higher in the infected livers than in the control livers, and the expression of 1113 genes was reduced. A Gene Ontology analysis showed that these genes were involved in 48 biological functions, and were significantly enriched in 237 Kyoto Encyclopedia of Genes and Genomes (KEGG) pathways. The free fatty acid content was significantly higher in the livers of infected Muscovy ducks than in the control livers (P < 0.01). The KEGG analysis showed that MDRV infection inhibited the cholesterol efflux from hepatic cells and reduced the expression of key enzymes involved in fatty acid degradation (scavenger receptor class b type 1, ABCG8, and APOA4), leading to the accumulation of fatty acids and cholesterol in the liver cells. In this study, we have identified the genes differentially expressed in livers infected by MDRV, from which we inferred the genes associated with lipodystrophia, and elucidated the molecular mechanism of the hepatic steatosis induced by MDRV. ABBREVIATIONS ABC: ATP binding cassette transport; ACADVL: acyl-CoA dehydrogenase, very long chain; ACAT: mitochondrial-like acetyl-CoA acetyltransferase A; ACAT2: acetyl-CoA acyltransferase 2; ACNAT2: acyl-coenzyme A amino acid N-acyltransferase 2-like; ACOT1: acyl-CoA thioesterase 1; ACOT7: acyl-CoA thioesterase 7; ACOX1: acyl-CoA oxidase 1, palmitoyl; ACSBG2: acyl-CoA synthetase bubblegum family member 2; ACSL1: acyl-CoA synthetase long-chain family member 1; ADH1: alcohol dehydrogenase 1; APOA4: apolipoprotein A-IV; ARV: avian reovirus; cDNA: complementary deoxyribonucleic acid; COG: Clusters of Orthologous Groups; DEG: differentially expressed gene; DGAT: diacylgycerol acyltransferase; DNA: deoxyribonucleic acid; ECI2: enoyl-CoA delta isomerase 2; EHHADH: enoyl-CoA hydratase/3-hydroxyacyl-CoA dehydrogenase; FDR: false discovery rate; GCDH: Pseudopodoces humilis glutaryl-CoA dehydrogenase; GO: Gene Ontology; HADHA: hydroxyacyl-CoA dehydrogenase/3-ketoacyl-CoA thiolase/enoyl-CoA hydratase (trifunctional protein), alpha subunit; I-FABP: intestinal fatty acid binding protein; KEGG: Kyoto Encyclopedia of Genes and Genomes; L-FABP: liver fatty acid binding protein; MDRV: Muscovy duck reovirus; MOI: multiplicity of infection; NPC1L1: Niemann-Pick C1-like 1; qPCR: real-time quantitative polymerase chain reaction; RNA: ribonucleic acid; RNase: ribonuclease; RNA-seq: RNA sequencing technology; RPKM: reads per kilobase per million mapped reads; SR-B1: scavenger receptor class b type 1.
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Affiliation(s)
- Quanxi Wang
- a College of Animal Science , Fujian Agriculture and Forestry University , Fuzhou , People's Republic of China.,b Fujian Key Laboratory of Traditional Chinese Veterinary Medicine and Animal Health , Fujian Agriculture and Forestry University , Fuzhou , People's Republic of China
| | - Mengxi Liu
- a College of Animal Science , Fujian Agriculture and Forestry University , Fuzhou , People's Republic of China.,b Fujian Key Laboratory of Traditional Chinese Veterinary Medicine and Animal Health , Fujian Agriculture and Forestry University , Fuzhou , People's Republic of China
| | - Lihui Xu
- a College of Animal Science , Fujian Agriculture and Forestry University , Fuzhou , People's Republic of China
| | - Yijian Wu
- a College of Animal Science , Fujian Agriculture and Forestry University , Fuzhou , People's Republic of China.,b Fujian Key Laboratory of Traditional Chinese Veterinary Medicine and Animal Health , Fujian Agriculture and Forestry University , Fuzhou , People's Republic of China
| | - Yifan Huang
- a College of Animal Science , Fujian Agriculture and Forestry University , Fuzhou , People's Republic of China.,b Fujian Key Laboratory of Traditional Chinese Veterinary Medicine and Animal Health , Fujian Agriculture and Forestry University , Fuzhou , People's Republic of China
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Lee YM, Ha CM, Kim SA, Thoudam T, Yoon YR, Kim DJ, Kim HC, Moon HB, Park S, Lee IK, Lee DH. Low-Dose Persistent Organic Pollutants Impair Insulin Secretory Function of Pancreatic β-Cells: Human and In Vitro Evidence. Diabetes 2017; 66:2669-2680. [PMID: 28720696 DOI: 10.2337/db17-0188] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/13/2017] [Accepted: 07/13/2017] [Indexed: 11/13/2022]
Abstract
Low-dose persistent organic pollutants (POPs), especially organochlorine pesticides (OCPs) and polychlorinated biphenyls (PCBs), have emerged as a new risk factor for type 2 diabetes. We evaluated whether chronic exposure to low-dose POPs affects insulin secretory function of β-cells in humans and in vitro cells. Serum concentrations of OCPs and PCBs were measured in 200 adults without diabetes. Mathematical model-based insulin secretion indices were estimated by using a 2-h seven-sample oral glucose tolerance test. Insulin secretion by INS-1E β-cells was measured after 48 h of treatment with three OCPs or one PCB mixture. Static second-phase insulin secretion significantly decreased with increasing serum concentrations of OCPs. Adjusted means were 63.2, 39.3, 44.1, 39.3, 39.7, and 22.3 across six categories of a summary measure of OCPs (Ptrend = 0.02). Dynamic first-phase insulin secretion remarkably decreased with increasing concentrations of OCPs among only insulin-sensitive individuals (Ptrend = 0.02); the insulin levels among individuals with high OCPs were ∼30% of those with low OCPs. Compared with OCPs, PCBs showed weaker associations. The decreased insulin secretion by INS-1E β-cells was observed for even 1 pmol/L OCP. The data from human and in vitro cell experiments suggest that chronic exposure to low-dose POPs, especially OCPs, can induce pancreatic β-cell dysfunction.
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Affiliation(s)
- Yu-Mi Lee
- Department of Preventive Medicine, School of Medicine, Kyungpook National University, Daegu, Republic of Korea
| | - Chae-Myeong Ha
- Department of Biomedical Science, Graduate School, Kyungpook National University, Daegu, Republic of Korea
- BK21 Plus KNU Biomedical Convergence Program, Department of Biomedical Science, Kyungpook National University, Daegu, Republic of Korea
| | - Se-A Kim
- Department of Biomedical Science, Graduate School, Kyungpook National University, Daegu, Republic of Korea
- BK21 Plus KNU Biomedical Convergence Program, Department of Biomedical Science, Kyungpook National University, Daegu, Republic of Korea
| | - Themis Thoudam
- Department of Biomedical Science, Graduate School, Kyungpook National University, Daegu, Republic of Korea
- BK21 Plus KNU Biomedical Convergence Program, Department of Biomedical Science, Kyungpook National University, Daegu, Republic of Korea
| | - Young-Ran Yoon
- BK21 Plus KNU Biomedical Convergence Program, Department of Biomedical Science, Kyungpook National University, Daegu, Republic of Korea
- Department of Biomedical Science, School of Medicine, Kyungpook National University and Hospital, Daegu, Republic of Korea
| | - Dae-Jung Kim
- Department of Endocrinology and Metabolism, Ajou University School of Medicine, Suwon, Republic of Korea
| | - Hyeon-Chang Kim
- Department of Preventive Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Hyo-Bang Moon
- Department of Environmental Marine Sciences, College of Science and Technology, Hanyang University, Ansan, Republic of Korea
| | - Sungmi Park
- Leading-edge Research Center for Drug Discovery and Development for Diabetes and Metabolic Disease, Kyungpook National University, Daegu, Republic of Korea
| | - In-Kyu Lee
- BK21 Plus KNU Biomedical Convergence Program, Department of Biomedical Science, Kyungpook National University, Daegu, Republic of Korea
- Leading-edge Research Center for Drug Discovery and Development for Diabetes and Metabolic Disease, Kyungpook National University, Daegu, Republic of Korea
- Department of Internal Medicine, School of Medicine, Kyungpook National University, Daegu, Republic of Korea
| | - Duk-Hee Lee
- Department of Preventive Medicine, School of Medicine, Kyungpook National University, Daegu, Republic of Korea
- BK21 Plus KNU Biomedical Convergence Program, Department of Biomedical Science, Kyungpook National University, Daegu, Republic of Korea
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