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Gomes WR, Devóz PP, Rocha BA, Grotto D, Serpeloni JM, Batista BL, Asimakopoulos AG, Kannan K, Barbosa Jr. F, Barcelos GRM. Association between Polymorphisms of Hemochromatosis (HFE), Blood Lead (Pb) Levels, and DNA Oxidative Damage in Battery Workers. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2023; 20:3513. [PMID: 36834208 PMCID: PMC9967888 DOI: 10.3390/ijerph20043513] [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: 11/30/2022] [Revised: 02/04/2023] [Accepted: 02/06/2023] [Indexed: 06/18/2023]
Abstract
Occupational exposure to lead (Pb) continues to be a serious public health concern and may pose an elevated risk of genetic oxidative damage. In Brazil, car battery manufacturing and recycling factories represent a great source of Pb contamination, and there are no guidelines on how to properly protect workers from exposure or to dispose the process wastes. Previous studies have shown that Pb body burden is associated with genetic polymorphisms, which consequently may influence the toxicity of the metal. The aim of this study was to assess the impact of Pb exposure on DNA oxidative damage, as well as the modulation of hemochromatosis (HFE) polymorphisms on Pb body burden, and the toxicity of Pb, through the analysis of 8-hydroxy-2'-deoxyguanosine (8-OHdG), in subjects occupationally exposed to the metal. Male Pb-exposed workers (n = 236) from car battery manufacturing and recycling factories in Brazil participated in the study. Blood and plasma lead levels (BLL and PLL, respectively) were determined by ICP-MS and urinary 8-OHdG levels were measured by LC-MS/MS, and genotyping of HFE SNPs (rs1799945, C → G; and 1800562, G → A) was performed by TaqMan assays. Our data showed that carriers of at least one variant allele for HFE rs1799945 (CG + GG) tended to have higher PLL than those with the non-variant genotype (β = 0.34; p = 0.043); further, PLL was significantly correlated with the levels of urinary 8-OHdG (β = 0.19; p = 0.0060), while workers that carry the variant genotype for HFE rs1800562 (A-allele) showed a prominent increase in 8-OHdG, as a function of PLL (β = 0.78; p = 0.046). Taken together, our data suggest that HFE polymorphisms may modulate the Pb body burden and, consequently, the oxidative DNA damage induced by the metal.
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Affiliation(s)
- Willian Robert Gomes
- Department of Clinical Analyses, Toxicology and Food Sciences, School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Avenida do Café s/n, Ribeirão Preto 14040-903, Brazil
| | - Paula Pícoli Devóz
- Department of Clinical Analyses, Toxicology and Food Sciences, School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Avenida do Café s/n, Ribeirão Preto 14040-903, Brazil
| | - Bruno Alves Rocha
- Department of Clinical Analyses, Toxicology and Food Sciences, School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Avenida do Café s/n, Ribeirão Preto 14040-903, Brazil
| | - Denise Grotto
- University of Sorocaba, Rodovia Raposo Tavares, km 92.5, Sorocaba 18023-000, Brazil
| | - Juliana Mara Serpeloni
- Department of General Biology, State University of Londrina, Rodovia Celso Garcia Cid, km 380, Londrina 86057-970, Brazil
| | - Bruno Lemos Batista
- Center of Natural and Human Sciences, Federal University of ABC, Avenida dos Estados, 5001, Santo André 09210-580, Brazil
| | - Alexandros G. Asimakopoulos
- Department of Chemistry, Faculty of Natural Sciences, Norwegian University of Science and Technology, Realfagbygget, D2-163, Gløshaugen, Høgskoleringen 5, 7491 Trondheim, Norway
| | - Kurunthachalam Kannan
- Department of Pediatrics and Environmental Medicine, New York University School of Medicine, New York, NY 10016, USA
- Bioactive Natural Products Research Group, Department of Biochemistry, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Fernando Barbosa Jr.
- Department of Clinical Analyses, Toxicology and Food Sciences, School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Avenida do Café s/n, Ribeirão Preto 14040-903, Brazil
| | - Gustavo Rafael Mazzaron Barcelos
- Department of Biosciences, Institute for Health and Society, Federal University of São Paulo, Rua XV de Novembro, 195, Santos 11101-151, Brazil
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Devóz PP, Reis MBD, Gomes WR, Maraslis FT, Ribeiro DL, Antunes LMG, Batista BL, Grotto D, Reis RM, Barbosa F, Barcelos GRM. Adaptive epigenetic response of glutathione (GSH)-related genes against lead (Pb)-induced toxicity, in individuals chronically exposed to the metal. CHEMOSPHERE 2021; 269:128758. [PMID: 33143897 DOI: 10.1016/j.chemosphere.2020.128758] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/14/2020] [Revised: 10/15/2020] [Accepted: 10/25/2020] [Indexed: 06/11/2023]
Abstract
It is well known that one of the most outstanding adverse effects related to lead (Pb) exposure is oxidative stress; moreover, recent findings suggest that disturbances of the redox status of cells are associated with epigenetic responses, and metabolism of glutathione (GSH) plays an important role in this process. This study aimed to assess Pb exposure on % methylation of GSH-related genes' promoter regions (%CH3-CpG) and their influence on biomarkers of oxidative stress, in workers exposed to the metal. One hundred nine male workers participated in the study; ICP-MS determined blood lead levels (BLL); biochemical parameters related to redox status, named GSH, glutathione peroxidase (GPX) and glutathione-S-transferase (GST) were quantified by UV/Vis spectrophotometry. Determination of %CH3-CpG of genes GCLC, GPX1, GSR, and GSTP1 were done by pyrosequencing. Inverse associations were seen between BLL and %CH3-CpG-GCLC, and %CH3-CpG-GSTP1. Moreover, metal exposure did not impact GSH, GPX, and GST; however, negative associations were observed between %CH3-CpG-GPX1 and %CH3-CpG-GSTP1, and the activities of GPX and GST, respectively. Taken together, our results give further evidence about adaptive epigenetic response to avoid oxidative damage induced by Pb exposure, allowing a better understanding of the molecular mechanisms related to the metal toxicity.
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Affiliation(s)
- Paula Pícoli Devóz
- Department of Clinical Analyses, Toxicology and Food Sciences, School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Avenida Do Café S/n, CEP 14040-903, Ribeirão Preto, SP, Brazil
| | - Mariana Bisarro Dos Reis
- Molecular Oncology Research Center, Barretos Cancer Hospital, Rua Antenor Duarte Villela 1331, CEP 14784-400, Barretos, SP, Brazil
| | - Willian Robert Gomes
- Department of Clinical Analyses, Toxicology and Food Sciences, School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Avenida Do Café S/n, CEP 14040-903, Ribeirão Preto, SP, Brazil
| | - Flora Troina Maraslis
- Department of Biosciences, Institute of Health and Society, Federal University of São Paulo, Avenida Ana Costa 95, CEP 11060-001, Santos, SP, Brazil
| | - Diego Luis Ribeiro
- Departament of Genetics, Ribeirão Preto Medical School, University of São Paulo, Avenida dos Bandeirantes 3900, CEP 14040-901, Ribeirão Preto, SP, Brazil
| | - Lusânia Maria Greggi Antunes
- Department of Clinical Analyses, Toxicology and Food Sciences, School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Avenida Do Café S/n, CEP 14040-903, Ribeirão Preto, SP, Brazil
| | - Bruno Lemos Batista
- Center of Natural and Human Sciences, Federal University of ABC, Avenida Dos Estados 5001, CEP 09210-580, Santo André, SP, Brazil
| | - Denise Grotto
- University of Sorocaba, Rodovia Raposo Tavares km 92.5, CEP 18023-000, Sorocaba, SP, Brazil
| | - Rui Manuel Reis
- Molecular Oncology Research Center, Barretos Cancer Hospital, Rua Antenor Duarte Villela 1331, CEP 14784-400, Barretos, SP, Brazil; Life and Health Sciences Research Institute, School of Medicine, University of Minho, Gualtar Campus, 4710-057, Braga, Portugal; ICVS/3B's-PT Government Associate Laboratory, Gualtar Campus, 4710-057, Braga, Portugal
| | - Fernando Barbosa
- Department of Clinical Analyses, Toxicology and Food Sciences, School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Avenida Do Café S/n, CEP 14040-903, Ribeirão Preto, SP, Brazil
| | - Gustavo Rafael Mazzaron Barcelos
- Department of Biosciences, Institute of Health and Society, Federal University of São Paulo, Avenida Ana Costa 95, CEP 11060-001, Santos, SP, Brazil.
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Sarron E, Pérot M, Barbezier N, Delayre-Orthez C, Gay-Quéheillard J, Anton PM. Early exposure to food contaminants reshapes maturation of the human brain-gut-microbiota axis. World J Gastroenterol 2020; 26:3145-3169. [PMID: 32684732 PMCID: PMC7336325 DOI: 10.3748/wjg.v26.i23.3145] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/31/2020] [Revised: 05/12/2020] [Accepted: 05/30/2020] [Indexed: 02/06/2023] Open
Abstract
Early childhood growth and development is conditioned by the consecutive events belonging to perinatal programming. This critical window of life will be very sensitive to any event altering programming of the main body functions. Programming of gut function, which is starting right after conception, relates to a very well-established series of cellular and molecular events associating all types of cells present in this organ, including neurons, endocrine and immune cells. At birth, this machinery continues to settle with the establishment of extra connection between enteric and other systemic systems and is partially under the control of gut microbiota activity, itself being under the densification and the diversification of microorganisms' population. As thus, any environmental factor interfering on this pre-established program may have a strong incidence on body functions. For all these reasons, pregnant women, fetuses and infants will be particularly susceptible to environmental factors and especially food contaminants. In this review, we will summarize the actual understanding of the consequences of repeated low-level exposure to major food contaminants on gut homeostasis settlement and on brain/gut axis communication considering the pivotal role played by the gut microbiota during the fetal and postnatal stages and the presumed consequences of these food toxicants on the individuals especially in relation with the risks of developing later in life non-communicable chronic diseases.
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Affiliation(s)
- Elodie Sarron
- Transformations and Agroressources (EA 7519), Institut Polytechnique UniLaSalle, Université d'Artois, Beauvais 60026, France
| | - Maxime Pérot
- Transformations and Agroressources (EA 7519), Institut Polytechnique UniLaSalle, Université d'Artois, Beauvais 60026, France
| | - Nicolas Barbezier
- Transformations and Agroressources (EA 7519), Institut Polytechnique UniLaSalle, Université d'Artois, Beauvais 60026, France
| | - Carine Delayre-Orthez
- Transformations and Agroressources (EA 7519), Institut Polytechnique UniLaSalle, Université d'Artois, Beauvais 60026, France
| | - Jérôme Gay-Quéheillard
- Périnatalité et risques Toxiques, UMR-I-01, Université de Picardie Jules Verne, Amiens 80000, France
| | - Pauline M Anton
- Transformations and Agroressources (EA 7519), Institut Polytechnique UniLaSalle, Université d'Artois, Beauvais 60026, France
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Papadopoulou E, Haug LS, Sakhi AK, Andrusaityte S, Basagaña X, Brantsaeter AL, Casas M, Fernández-Barrés S, Grazuleviciene R, Knutsen HK, Maitre L, Meltzer HM, McEachan RRC, Roumeliotaki T, Slama R, Vafeiadi M, Wright J, Vrijheid M, Thomsen C, Chatzi L. Diet as a Source of Exposure to Environmental Contaminants for Pregnant Women and Children from Six European Countries. ENVIRONMENTAL HEALTH PERSPECTIVES 2019; 127:107005. [PMID: 31617753 PMCID: PMC6867312 DOI: 10.1289/ehp5324] [Citation(s) in RCA: 90] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/19/2019] [Revised: 09/20/2019] [Accepted: 09/23/2019] [Indexed: 05/20/2023]
Abstract
BACKGROUND Pregnant women and children are especially vulnerable to exposures to food contaminants, and a balanced diet during these periods is critical for optimal nutritional status. OBJECTIVES Our objective was to study the association between diet and measured blood and urinary levels of environmental contaminants in mother-child pairs from six European birth cohorts (n = 818 mothers and 1,288 children). METHODS We assessed the consumption of seven food groups and the blood levels of organochlorine pesticides, polybrominated diphenyl ethers, polychlorinated biphenyls (PCBs), per- and polyfluoroalkyl substances (PFAS), and heavy metals and urinary levels of phthalate metabolites, phenolic compounds, and organophosphate pesticide (OP) metabolites. Organic food consumption during childhood was also studied. We applied multivariable linear regressions and targeted maximum likelihood based estimation (TMLE). RESULTS Maternal high (≥ 4 times / week ) versus low (< 2 times / week ) fish consumption was associated with 15% higher PCBs [geometric mean (GM) ratio = 1.15 ; 95% confidence interval (CI): 1.02, 1.29], 42% higher perfluoroundecanoate (PFUnDA) (GM ratio = 1.42 ; 95% CI: 1.20, 1.68), 89% higher mercury (Hg) (GM ratio = 1.89 ; 95% CI: 1.47, 2.41) and a 487% increase in arsenic (As) (GM ratio = 4.87 ; 95% CI: 2.57, 9.23) levels. In children, high (≥ 3 times / week ) versus low (< 1.5 times / week ) fish consumption was associated with 23% higher perfluorononanoate (PFNA) (GM ratio = 1.23 ; 95% CI: 1.08, 1.40), 36% higher PFUnDA (GM ratio = 1.36 ; 95% CI: 1.12, 1.64), 37% higher perfluorooctane sulfonate (PFOS) (GM ratio = 1.37 ; 95% CI: 1.22, 1.54), and > 200 % higher Hg and As [GM ratio = 3.87 (95% CI: 1.91, 4.31) and GM ratio = 2.68 (95% CI: 2.23, 3.21)] concentrations. Using TMLE analysis, we estimated that fish consumption within the recommended 2-3 times/week resulted in lower PFAS, Hg, and As compared with higher consumption. Fruit consumption was positively associated with OP metabolites. Organic food consumption was negatively associated with OP metabolites. DISCUSSION Fish consumption is related to higher PFAS, Hg, and As exposures. In addition, fruit consumption is a source of exposure to OPs. https://doi.org/10.1289/EHP5324.
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Affiliation(s)
- Eleni Papadopoulou
- Department of Environmental Exposure and Epidemiology, Norwegian Institute of Public Health, Oslo, Norway
| | - Line Småstuen Haug
- Department of Environmental Exposure and Epidemiology, Norwegian Institute of Public Health, Oslo, Norway
| | - Amrit Kaur Sakhi
- Department of Environmental Exposure and Epidemiology, Norwegian Institute of Public Health, Oslo, Norway
| | - Sandra Andrusaityte
- Department of Environmental Sciences, Vytautas Magnus University, Kaunas, Lithuania
| | - Xavier Basagaña
- Barcelona Institute for Global Health (ISGlobal), Barcelona, Spain
- Universitat Pompeu Fabra (UPF), Barcelona, Spain
- CIBER Epidemiología y Salud Pública (CIBERESP), Spain
| | - Anne Lise Brantsaeter
- Department of Environmental Exposure and Epidemiology, Norwegian Institute of Public Health, Oslo, Norway
| | - Maribel Casas
- Barcelona Institute for Global Health (ISGlobal), Barcelona, Spain
- Universitat Pompeu Fabra (UPF), Barcelona, Spain
- CIBER Epidemiología y Salud Pública (CIBERESP), Spain
| | - Sílvia Fernández-Barrés
- Barcelona Institute for Global Health (ISGlobal), Barcelona, Spain
- Universitat Pompeu Fabra (UPF), Barcelona, Spain
- CIBER Epidemiología y Salud Pública (CIBERESP), Spain
| | | | - Helle Katrine Knutsen
- Department of Environmental Exposure and Epidemiology, Norwegian Institute of Public Health, Oslo, Norway
| | - Lea Maitre
- Barcelona Institute for Global Health (ISGlobal), Barcelona, Spain
- Universitat Pompeu Fabra (UPF), Barcelona, Spain
- CIBER Epidemiología y Salud Pública (CIBERESP), Spain
| | - Helle Margrete Meltzer
- Department of Environmental Exposure and Epidemiology, Norwegian Institute of Public Health, Oslo, Norway
| | - Rosemary R. C. McEachan
- Bradford Institute for Health Research, Bradford Teaching Hospitals National Health Service (NHS) Foundation Trust, Bradford, UK
| | - Theano Roumeliotaki
- Department of Social Medicine, Faculty of Medicine, University of Crete, Heraklion, Crete, Greece
| | - Remy Slama
- Team of Environmental Epidemiology applied to Reproduction and Respiratory Health, Institut national de la santé et de la recherche médicale (Inserm), Centre national de la recherche scientifique (CNRS), University Grenoble Alpes, Institute for Advanced Biosciences, Joint Research Center (U1209), La Tronche, Grenoble, France
| | - Marina Vafeiadi
- Department of Social Medicine, Faculty of Medicine, University of Crete, Heraklion, Crete, Greece
| | - John Wright
- Bradford Institute for Health Research, Bradford Teaching Hospitals National Health Service (NHS) Foundation Trust, Bradford, UK
| | - Martine Vrijheid
- Barcelona Institute for Global Health (ISGlobal), Barcelona, Spain
- Universitat Pompeu Fabra (UPF), Barcelona, Spain
- CIBER Epidemiología y Salud Pública (CIBERESP), Spain
| | - Cathrine Thomsen
- Department of Environmental Exposure and Epidemiology, Norwegian Institute of Public Health, Oslo, Norway
| | - Leda Chatzi
- Department of Preventive Medicine, Keck School of Medicine, University of Southern California, Los Angeles, USA
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5
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Saxe-Custack A, Lofton HC, Hanna-Attisha M, Tata Z, Ceja T, LaChance J. Caregiver Experiences With an Innovative Farmers' Market Incentive Program for Children in Flint, Michigan. Glob Pediatr Health 2019; 6:2333794X19870989. [PMID: 31489342 PMCID: PMC6712753 DOI: 10.1177/2333794x19870989] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2019] [Revised: 07/26/2019] [Accepted: 07/29/2019] [Indexed: 01/21/2023] Open
Abstract
An innovative farmers’ market incentive program designed specifically for children was implemented to address persistent challenges with accessing fresh, nutrient-rich foods in a food desert community. The current study sought to qualitatively examine caregiver perceptions of the incentive program. Following distribution of farmers’ market incentives to all children (ages 0 to 15 years) at 43 Flint-area early childcare facilities and elementary schools, researchers conducted semistructured interviews with 37 caregivers (mean age = 39.59 ± 11.73 years). The majority were female (87%) and African American (53%). Through these interviews, researchers explored family experiences with the farmers’ market incentive program, as well as changes in environmental factors that may have resulted from program participation. Interviews were audio recorded and transcribed verbatim for textual analysis. Thematic analysis was used to identify patterns across transcripts and formulate emerging themes. Four recurrent themes emerged during interviews: (1) fruit and vegetable access, (2) child influence, (3) autonomous grocery shopping, and (4) program expansion. Interview participants indicated that the farmers’ market incentive program was an effective tool to both encourage families to visit the farmers’ market and purchase fresh foods there. Program design, particularly distribution to children, was credited with introducing families to the local farmers’ market. The current study suggests that a farmers’ market incentive program targeting children who reside in a food desert community may have meaningful impacts on access to fresh, nutrient-rich foods.
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Affiliation(s)
| | | | - Mona Hanna-Attisha
- Michigan State University, Flint, MI, USA.,Hurley Children's Hospital at Hurley Medical Center, Flint, MI, USA
| | | | - Tiffany Ceja
- Michigan State University, Flint, MI, USA.,Hurley Research Center, Hurley Medical Center, Flint, MI, USA
| | - Jenny LaChance
- Michigan State University, Flint, MI, USA.,Hurley Research Center, Hurley Medical Center, Flint, MI, USA
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Gomes WR, Devóz PP, Luiz BLC, Grotto D, Batista BL, Barbosa F, Barcelos GRM. Polymorphisms of genes related to metabolism of lead (Pb) are associated with the metal body burden and with biomarkers of oxidative stress. MUTATION RESEARCH-GENETIC TOXICOLOGY AND ENVIRONMENTAL MUTAGENESIS 2018; 836:42-46. [DOI: 10.1016/j.mrgentox.2018.05.016] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2017] [Revised: 04/18/2018] [Accepted: 05/15/2018] [Indexed: 10/16/2022]
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Devóz PP, Gomes WR, De Araújo ML, Ribeiro DL, Pedron T, Greggi Antunes LM, Batista BL, Barbosa F, Barcelos GRM. Lead (Pb) exposure induces disturbances in epigenetic status in workers exposed to this metal. JOURNAL OF TOXICOLOGY AND ENVIRONMENTAL HEALTH. PART A 2017; 80:1098-1105. [PMID: 28862539 DOI: 10.1080/15287394.2017.1357364] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
Previous studies showed that lead (Pb) exposure may modulate gene expression by changes in the epigenetic status. However, little is known about the impact of Pb exposure and alterations on DNA methylation patterns in humans exposed to this metal. The aim of this study was to assess the consequences of exposure to Pb on DNA global methylation, in order to gain a better understanding of the interactions between Pb exposure and epigenetic effects. The study included 100 male workers employed in automotive battery factories from Paraná State, Brazil. Concentrations of Pb in blood (B-Pb) and plasma (P-Pb) were determined by ICP-MS, the percentage (%) of global DNA methylation was determined by quantification of 5-methylcytosine using indirect ELISA, and sociodemographic data collected by questionnaire by trained interviewers. The mean age was 37 ± 10 (18-67 years); 18% of participants were smokers, while 32% reported consumption of alcoholic beverages. The B-Pb and P-Pb levels were 20 ± 11 and 0.56 ± 0.64 µg/dl, respectively; % global DNA methylation was 2.8 ± 1.1% (ranging from 1.1 to 6.5%). B-Pb and P-Pb concentrations were significantly correlated. Furthermore, a marked association was noted between Pb biomarkers and DNA global methylation. Taken together, our data demonstrated that Pb exposure induced alterations on DNA global methylation in workers who were exposed to the metal and consequently may result in disturbances in the regulation of gene expression, leading to potentially several health adverse effect outcomes.
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Affiliation(s)
- Paula Pícoli Devóz
- a Department of Clinical Analyses, Toxicology and Food Sciences, School of Pharmaceutical Sciences of Ribeirão Preto , University of São Paulo , Ribeirão Preto , Brazil
| | - Willian Robert Gomes
- a Department of Clinical Analyses, Toxicology and Food Sciences, School of Pharmaceutical Sciences of Ribeirão Preto , University of São Paulo , Ribeirão Preto , Brazil
| | - Marília Ladeira De Araújo
- b Department of Biosciences , Institute of Health and Society, Federal University of São Paulo , Santos , Brazil
| | - Diego Luis Ribeiro
- c Departament of Genetics, School of Medicine of Ribeirão Preto, Ribeirão Preto , University of São Paulo , Ribeirão Preto , Brazil
| | - Tatiana Pedron
- d Center of Natural and Human Sciences , Federal University of ABC , Santo André , Brazil
| | - Lusânia Maria Greggi Antunes
- a Department of Clinical Analyses, Toxicology and Food Sciences, School of Pharmaceutical Sciences of Ribeirão Preto , University of São Paulo , Ribeirão Preto , Brazil
| | - Bruno Lemos Batista
- d Center of Natural and Human Sciences , Federal University of ABC , Santo André , Brazil
| | - Fernando Barbosa
- a Department of Clinical Analyses, Toxicology and Food Sciences, School of Pharmaceutical Sciences of Ribeirão Preto , University of São Paulo , Ribeirão Preto , Brazil
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Afravy M, Angali K, Khodadadi A, Ahmadizadeh M. The protective effect of Buffalo's milk against toluene induced-nephrotoxicity in rats. J Nephropathol 2016; 6:174-179. [PMID: 28975098 PMCID: PMC5607980 DOI: 10.15171/jnp.2017.30] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2016] [Accepted: 12/03/2016] [Indexed: 11/12/2022] Open
Abstract
Background:
Toluene is widely used in different activities of industrial, commercial and
household applications. It can cause damage to the human body. Buffalos’ milk has a good
nutritive value.
Objectives:
The aim of this study is to examine the negative effects of toluene on kidney
tissues and to investigate the protective effects of buffalo’s milk against toluene-induced
nephrotoxicity in rats.
Materials and Methods:
Forty adult male Wistar rats (180-220 g weight) were randomly
assigned to eight groups (n = 5). Animals in groups I to IV received oral gavage 1 mL
distilled water (DH2O) and groups V to VIII received oral gavage 1 mL buffalo’s milk.
Ten minutes later, animals were received toluene (i.p) at doses of 300 mg/kg (groups
I and V), 600 mg/kg (groups of II and VI), and 900 mg/kg (groups of III and VII),
respectively. The animals in groups IV (control) and VIII were injected vehicle (corn oil)
only. The experiment repeated for seven consecutive days. Twenty-four hours after the
last administration, animals were killed with overdose of sodium pentobarbital. Blood
samples were analyzed for blood urea nitrogen (BUN) and creatinine (Cr). One part of the
kidney tissues were excised for measuring the activities of superoxide dismutase (SOD),
glutathione reductase (GR) and catalase (CAT) and the level of malondialdehyde (MDA).
Another parts were excised for histopatholgical examination.
Results:
Administration of toluene to male rats produced dose-dependent damage in the
kidney. This was noted by elevation of BUN, Cr and MDA levels. In contrast, diminished
the CAT, GR and SOD enzyme activities in rats treated with toluene when compared to
those in control animals. Histopathological manifestations were also observed in dose
related manner in toluene-treated rats. Buffalo’s milk had no effect on the biochemical
parameters and kidney morphology when compared to those in control. However, it was
able to prevent rat kidney against toluene toxicity.
Conclusions:
The results of this study demonstrated that toluene damages kidney tissue and
is a nephrotoxic substance. Buffalo’s milk was able to prevent the renal damage as an
antioxidant and a nephroprotective agent.
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Affiliation(s)
- Maryam Afravy
- Department of Occupational Health, Engineering, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Kambiz Angali
- Department of Statistics and Epidemiology, School of Health, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Ali Khodadadi
- Department of Immunology, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Massumeh Ahmadizadeh
- Department of Occupational Health, Engineering, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.,Physiology Research Centers, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
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