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Vielee ST, Buchanan WJ, Roof SH, Kahloon R, Evans E, Isibor J, Patel M, Meaza I, Lu H, Williams AR, Kouokam JC, Wise SS, Guo L, Wise RM, Wise JL, Cai L, Cai J, Wise JP. Chromium Selectively Accumulates in the Rat Hippocampus after 90 Days of Exposure to Cr(VI) in Drinking Water and Induces Age- and Sex-Dependent Metal Dyshomeostasis. TOXICS 2024; 12:722. [PMID: 39453142 PMCID: PMC11510846 DOI: 10.3390/toxics12100722] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/12/2024] [Revised: 09/20/2024] [Accepted: 09/26/2024] [Indexed: 10/26/2024]
Abstract
Hexavalent chromium (Cr[VI]) is a widespread environmental pollutant in air and water that is primarily attributed to industrial pollution. The current maximum contaminant levels (MCLs) for drinking water from the World Health Organization and the U.S. Environmental Protection Agency (0.05 and 0.1 mg/L, respectively) were set based on contact dermatitis and warrant further toxicological investigation. While Cr(VI) is neurotoxic and accumulates in the brain, most animal studies only report whole-brain Cr, leaving large knowledge gaps. Few studies consider differences between ages or sexes, and fewer consider essential metal dyshomeostasis. We sought to investigate where Cr accumulates in the brain, considering sex and age differences, following a 90-day drinking water exposure to current MCLs. Here, we report Cr levels in six brain regions of rats exposed to drinking water Cr(VI). We observed Cr only accumulated in the hippocampus, and only in older females. We further assessed changes to essential metals in the hippocampus, observing opposite effects across sexes and between young rats compared to older rats. In sum, our data indicate drinking water Cr(VI) selectively targeted the hippocampus, with geriatric females accumulating the most Cr, and induced significant essential metal dyshomeostasis even in tissues lacking evident Cr accumulation.
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Affiliation(s)
- Samuel T. Vielee
- Pediatrics Research Institute, Department of Pediatrics, University of Louisville, Louisville, KY 40292, USA; (S.T.V.); (S.H.R.); (R.K.); (L.C.)
- Department of Pharmacology and Toxicology, University of Louisville, Louisville, KY 40292, USA; (I.M.); (S.S.W.)
| | - William J. Buchanan
- Pediatrics Research Institute, Department of Pediatrics, University of Louisville, Louisville, KY 40292, USA; (S.T.V.); (S.H.R.); (R.K.); (L.C.)
| | - Spencer H. Roof
- Pediatrics Research Institute, Department of Pediatrics, University of Louisville, Louisville, KY 40292, USA; (S.T.V.); (S.H.R.); (R.K.); (L.C.)
| | - Rehan Kahloon
- Pediatrics Research Institute, Department of Pediatrics, University of Louisville, Louisville, KY 40292, USA; (S.T.V.); (S.H.R.); (R.K.); (L.C.)
| | - Elizabeth Evans
- Pediatrics Research Institute, Department of Pediatrics, University of Louisville, Louisville, KY 40292, USA; (S.T.V.); (S.H.R.); (R.K.); (L.C.)
| | - Jessica Isibor
- Pediatrics Research Institute, Department of Pediatrics, University of Louisville, Louisville, KY 40292, USA; (S.T.V.); (S.H.R.); (R.K.); (L.C.)
| | - Maitri Patel
- Pediatrics Research Institute, Department of Pediatrics, University of Louisville, Louisville, KY 40292, USA; (S.T.V.); (S.H.R.); (R.K.); (L.C.)
| | - Idoia Meaza
- Department of Pharmacology and Toxicology, University of Louisville, Louisville, KY 40292, USA; (I.M.); (S.S.W.)
| | - Haiyan Lu
- Department of Pharmacology and Toxicology, University of Louisville, Louisville, KY 40292, USA; (I.M.); (S.S.W.)
| | - Aggie R. Williams
- Pediatrics Research Institute, Department of Pediatrics, University of Louisville, Louisville, KY 40292, USA; (S.T.V.); (S.H.R.); (R.K.); (L.C.)
| | - J. Calvin Kouokam
- Department of Pharmacology and Toxicology, University of Louisville, Louisville, KY 40292, USA; (I.M.); (S.S.W.)
| | - Sandra S. Wise
- Department of Pharmacology and Toxicology, University of Louisville, Louisville, KY 40292, USA; (I.M.); (S.S.W.)
| | - Luping Guo
- Department of Pharmacology and Toxicology, University of Louisville, Louisville, KY 40292, USA; (I.M.); (S.S.W.)
- Department of Pharmaceutical Sciences, College of Pharmacy, University of New Mexico, Albuquerque, NM 87131, USA
| | - Rachel M. Wise
- Department of Pharmaceutical Sciences, College of Pharmacy, University of New Mexico, Albuquerque, NM 87131, USA
| | - Jamie L. Wise
- Department of Pharmacology and Toxicology, University of Louisville, Louisville, KY 40292, USA; (I.M.); (S.S.W.)
| | - Lu Cai
- Pediatrics Research Institute, Department of Pediatrics, University of Louisville, Louisville, KY 40292, USA; (S.T.V.); (S.H.R.); (R.K.); (L.C.)
- Department of Pharmacology and Toxicology, University of Louisville, Louisville, KY 40292, USA; (I.M.); (S.S.W.)
| | - Jun Cai
- Pediatrics Research Institute, Department of Pediatrics, University of Louisville, Louisville, KY 40292, USA; (S.T.V.); (S.H.R.); (R.K.); (L.C.)
- Department of Pharmacology and Toxicology, University of Louisville, Louisville, KY 40292, USA; (I.M.); (S.S.W.)
| | - John P. Wise
- Pediatrics Research Institute, Department of Pediatrics, University of Louisville, Louisville, KY 40292, USA; (S.T.V.); (S.H.R.); (R.K.); (L.C.)
- Department of Pharmacology and Toxicology, University of Louisville, Louisville, KY 40292, USA; (I.M.); (S.S.W.)
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2
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Vielee ST, Isibor J, Buchanan WJ, Roof SH, Patel M, Meaza I, Williams A, Toyoda JH, Lu H, Wise SS, Kouokam JC, Young Wise J, Abouiessa AM, Cai J, Cai L, Wise JP. Employing a Toxic Aging Coin approach to assess hexavalent chromium (Cr[VI])-induced neurotoxic effects on behavior: Heads for age differences. Toxicol Appl Pharmacol 2024; 489:117007. [PMID: 38901695 PMCID: PMC11342792 DOI: 10.1016/j.taap.2024.117007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2024] [Revised: 06/05/2024] [Accepted: 06/14/2024] [Indexed: 06/22/2024]
Abstract
We are facing a rapidly growing geriatric population (65+) that will live for multiple decades and are challenged with environmental pollution far exceeding that of previous generations. Consequently, we currently have a poor understanding of how environmental pollution will impact geriatric health distinctly from younger populations. Few toxicology studies have considered age differences with geriatric individuals. Critically, all top ten most prevalent age-related diseases are linked to metal exposures. Hexavalent chromium [Cr(VI)] is a metal of major environmental health concern that can induce aging phenotypes and neurotoxicity. However, there are many knowledge gaps for Cr(VI) neurotoxicity, including how Cr(VI) impacts behavior. To address this, we exposed male rats across three ages (3-, 7-, and 18-months old) to Cr(VI) in drinking water (0, 0.05, 0.1 mg/L) for 90 days. These levels reflect the maximum contaminant levels determined by the World Health Organization (WHO) and the U.S. Environmental Protection Agency (US EPA). Here, we report how these Cr(VI) drinking water levels impacted rat behaviors using a battery of behavior tests, including grip strength, open field assay, elevated plus maze, Y-maze, and 3-chamber assay. We observed adult rats were the most affected age group and memory assays (spatial and social) exhibited the most significant effects. Critically, the significant effects were surprising as rats should be particularly resistant to these Cr(VI) drinking water levels due to the adjustments applied in risk assessment from rodent studies to human safety, and because rats endogenously synthesize vitamin C in their livers (vitamin C is a primary reducer of Cr[VI] to Cr[III]). Our results emphasize the need to broaden the scope of toxicology research to consider multiple life stages and suggest the current regulations for Cr(VI) in drinking water need to be revisited.
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Affiliation(s)
- Samuel T Vielee
- Pediatric Research Institute, the Department of Pediatrics, University of Louisville School of Medicine, Louisville, KY 40292, USA; Department of Pharmacology and Toxicology, University of Louisville School of Medicine, Louisville, KY 40292, USA
| | - Jessica Isibor
- Pediatric Research Institute, the Department of Pediatrics, University of Louisville School of Medicine, Louisville, KY 40292, USA
| | - William J Buchanan
- Pediatric Research Institute, the Department of Pediatrics, University of Louisville School of Medicine, Louisville, KY 40292, USA
| | - Spencer H Roof
- Pediatric Research Institute, the Department of Pediatrics, University of Louisville School of Medicine, Louisville, KY 40292, USA
| | - Maitri Patel
- Pediatric Research Institute, the Department of Pediatrics, University of Louisville School of Medicine, Louisville, KY 40292, USA
| | - Idoia Meaza
- Department of Pharmacology and Toxicology, University of Louisville School of Medicine, Louisville, KY 40292, USA
| | - Aggie Williams
- Department of Pharmacology and Toxicology, University of Louisville School of Medicine, Louisville, KY 40292, USA
| | - Jennifer H Toyoda
- Department of Pharmacology and Toxicology, University of Louisville School of Medicine, Louisville, KY 40292, USA
| | - Haiyan Lu
- Department of Pharmacology and Toxicology, University of Louisville School of Medicine, Louisville, KY 40292, USA
| | - Sandra S Wise
- Department of Pharmacology and Toxicology, University of Louisville School of Medicine, Louisville, KY 40292, USA
| | - J Calvin Kouokam
- Department of Pharmacology and Toxicology, University of Louisville School of Medicine, Louisville, KY 40292, USA
| | - Jamie Young Wise
- Department of Pharmacology and Toxicology, University of Louisville School of Medicine, Louisville, KY 40292, USA
| | | | - Jun Cai
- Pediatric Research Institute, the Department of Pediatrics, University of Louisville School of Medicine, Louisville, KY 40292, USA; Department of Pharmacology and Toxicology, University of Louisville School of Medicine, Louisville, KY 40292, USA
| | - Lu Cai
- Pediatric Research Institute, the Department of Pediatrics, University of Louisville School of Medicine, Louisville, KY 40292, USA; Department of Pharmacology and Toxicology, University of Louisville School of Medicine, Louisville, KY 40292, USA
| | - John P Wise
- Pediatric Research Institute, the Department of Pediatrics, University of Louisville School of Medicine, Louisville, KY 40292, USA; Department of Pharmacology and Toxicology, University of Louisville School of Medicine, Louisville, KY 40292, USA.
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3
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Vielee ST, Isibor J, Buchanan WJ, Roof SH, Patel M, Meaza I, Williams A, Toyoda JH, Lu H, Wise SS, Kouokam JC, Young Wise J, Aboueissa AM, Cai J, Cai L, Wise JP. Female Rat Behavior Effects from Low Levels of Hexavalent Chromium (Cr[VI]) in Drinking Water Evaluated with a Toxic Aging Coin Approach. APPLIED SCIENCES 2024; 14:6206. [DOI: 10.3390/app14146206] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2024]
Abstract
We are facing a critical aging crisis, with geriatric populations (65+) growing to unprecedented proportions and ~4 million people (a 6.5-fold increase) expected to become centenarians by 2050. This is compounded by environmental pollution, which affects individuals of all ages and contributes to age-related diseases. As we have a limited understanding of how environmental pollutants affect older populations distinctly from younger populations, these longer-lived geriatric populations present a key knowledge gap. To address this knowledge gap, we employ a “Toxic Aging Coin” approach: heads consider how age impacts chemical toxicity, and tails consider how chemicals act as gerontogens—or how they accelerate biological aging. We employed this approach to investigate hexavalent chromium (Cr[VI]) impacts on female rats exposed to 0.05 or 0.1 mg Cr(VI)/L in drinking water for 90 days; these are the maximum contaminant levels (i.e., the highest levels permitted) from the World Health Organization and U.S. Environmental Protection Agency, respectively. During exposure, rats performed a battery of behavior assays to assess grip strength, locomotor coordination, anxiety, spatial memory, sociability, and social novelty preference. We observed age differences in Cr(VI) neurotoxicity, with grip strength, locomotor function, and spatial memory in middle-aged females being particularly affected. We further compared these results in females to results in males, noting many sex differences, especially in middle-aged rats. These data emphasize the need to consider age and sex as variables in toxicology and to revisit drinking water regulations for Cr(VI).
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Affiliation(s)
- Samuel T. Vielee
- Pediatric Research Institute, Department of Pediatrics, University of Louisville School of Medicine, Louisville, KY 40202, USA
- Department of Pharmacology and Toxicology, University of Louisville School of Medicine, Louisville, KY 40292, USA
| | - Jessica Isibor
- Pediatric Research Institute, Department of Pediatrics, University of Louisville School of Medicine, Louisville, KY 40202, USA
| | - William J. Buchanan
- Pediatric Research Institute, Department of Pediatrics, University of Louisville School of Medicine, Louisville, KY 40202, USA
| | - Spencer H. Roof
- Pediatric Research Institute, Department of Pediatrics, University of Louisville School of Medicine, Louisville, KY 40202, USA
| | - Maitri Patel
- Pediatric Research Institute, Department of Pediatrics, University of Louisville School of Medicine, Louisville, KY 40202, USA
| | - Idoia Meaza
- Department of Pharmacology and Toxicology, University of Louisville School of Medicine, Louisville, KY 40292, USA
| | - Aggie Williams
- Department of Pharmacology and Toxicology, University of Louisville School of Medicine, Louisville, KY 40292, USA
| | - Jennifer H. Toyoda
- Department of Pharmacology and Toxicology, University of Louisville School of Medicine, Louisville, KY 40292, USA
| | - Haiyan Lu
- Department of Pharmacology and Toxicology, University of Louisville School of Medicine, Louisville, KY 40292, USA
| | - Sandra S. Wise
- Department of Pharmacology and Toxicology, University of Louisville School of Medicine, Louisville, KY 40292, USA
| | - J. Calvin Kouokam
- Department of Pharmacology and Toxicology, University of Louisville School of Medicine, Louisville, KY 40292, USA
| | - Jamie Young Wise
- Department of Pharmacology and Toxicology, University of Louisville School of Medicine, Louisville, KY 40292, USA
| | | | - Jun Cai
- Pediatric Research Institute, Department of Pediatrics, University of Louisville School of Medicine, Louisville, KY 40202, USA
- Department of Pharmacology and Toxicology, University of Louisville School of Medicine, Louisville, KY 40292, USA
| | - Lu Cai
- Pediatric Research Institute, Department of Pediatrics, University of Louisville School of Medicine, Louisville, KY 40202, USA
- Department of Pharmacology and Toxicology, University of Louisville School of Medicine, Louisville, KY 40292, USA
| | - John P. Wise
- Pediatric Research Institute, Department of Pediatrics, University of Louisville School of Medicine, Louisville, KY 40202, USA
- Department of Pharmacology and Toxicology, University of Louisville School of Medicine, Louisville, KY 40292, USA
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Zhang T, Feng L, Cui J, Tong W, Zhao H, Wu T, Zhang P, Wang X, Gao Y, Su J, Fu X. Hexavalent Chromium Induces Neurotoxicity by Triggering Mitochondrial Dysfunction and ROS-Mediated Signals. Neurochem Res 2024; 49:660-669. [PMID: 38010603 DOI: 10.1007/s11064-023-04063-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Revised: 10/08/2023] [Accepted: 11/10/2023] [Indexed: 11/29/2023]
Abstract
Hexavalent chromium (Cr (VI)), one of the most detrimental pollutants, has been ubiquitously present in the environment and causes serious toxicity to humans, such as hepatotoxicity, nephrotoxicity, pulmonary toxicity, and cardiotoxicity. However, Cr (VI)-induced neurotoxicity in primary neuron level has not been well explored yet. Herein, potassium dichromate (K2Cr2O7) was employed to examine the neurotoxicity of Cr (VI) in rat primary hippocampal neurons. MTT test was used to examine the neural viability. Mitochondrial dysfunction was assessed by the JC-1 probe and Mito-Tracker probe. DCFH-DA and Mito-SOX Red were utilized to evaluate the oxidative status. Bcl-2 family and MAPKs expression were investigated using Western blotting. The results demonstrated that Cr (VI) treatment dose- and time-dependently inhibited neural viability. Mechanism investigation found that Cr (VI) treatment causes mitochondrial dysfunction by affecting Bcl-2 family expression. Moreover, Cr (VI) treatment also induces intracellular reactive oxygen species (ROS) generation, DNA damage, and MAPKs activation in neurons. However, inhibition of ROS by glutathione (GSH) effectually balanced Bcl-2 family expression, attenuated DNA damage and the MAPKs activation, and eventually improved neural viability neurons. Collectively, these above results above suggest that Cr (VI) causes significant neurotoxicity by triggering mitochondrial dysfunction, ROS-mediated oxidative damage and MAKPs activation.
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Affiliation(s)
- Tongtong Zhang
- Department of Neurology, People's Hospital of Linyi, Linyi, 276000, Shandong, China
| | - Lina Feng
- Shandong Key Laboratory of TCM Multi-Target Intervention and Disease Control, The Second Affiliated Hospital of Shandong First Medical University, Taian, 271000, Shandong, China
| | - Jie Cui
- Shandong Key Laboratory of TCM Multi-Target Intervention and Disease Control, The Second Affiliated Hospital of Shandong First Medical University, Taian, 271000, Shandong, China
| | - Weiwei Tong
- Department of Cardiovascular Medicine, Affiliated Taian City Central Hospital of Qingdao University, Taian, 271000, Shandong, China
| | - Han Zhao
- Department of Cardiovascular Medicine, Affiliated Taian City Central Hospital of Qingdao University, Taian, 271000, Shandong, China
| | - Tingchao Wu
- Department of Cardiovascular Medicine, Affiliated Taian City Central Hospital of Qingdao University, Taian, 271000, Shandong, China
| | - Pu Zhang
- Department of Cardiovascular Medicine, Affiliated Taian City Central Hospital of Qingdao University, Taian, 271000, Shandong, China
| | - Xianjun Wang
- Department of Neurology, People's Hospital of Linyi, Linyi, 276000, Shandong, China
| | - Yingjun Gao
- Department of Cardiovascular Medicine, Affiliated Taian City Central Hospital of Qingdao University, Taian, 271000, Shandong, China.
| | - Jing Su
- Department of Cardiovascular Medicine, Affiliated Taian City Central Hospital of Qingdao University, Taian, 271000, Shandong, China.
| | - Xiaoyan Fu
- Shandong Key Laboratory of TCM Multi-Target Intervention and Disease Control, The Second Affiliated Hospital of Shandong First Medical University, Taian, 271000, Shandong, China.
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Guimarães ATB, Freitas ÍN, Mubarak NM, Rahman MM, Rodrigues FP, Rodrigues ASDL, Barceló D, Islam ARMT, Malafaia G. Exposure to polystyrene nanoplastics induces an anxiolytic-like effect, changes in antipredator defensive response, and DNA damage in Swiss mice. JOURNAL OF HAZARDOUS MATERIALS 2023; 442:130004. [PMID: 36152541 DOI: 10.1016/j.jhazmat.2022.130004] [Citation(s) in RCA: 27] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Revised: 09/13/2022] [Accepted: 09/14/2022] [Indexed: 06/16/2023]
Abstract
Although the in vivo toxicity of nanoplastics (NPs) has already been reported in different model systems, their effects on mammalian behavior are poorly understood. Thus, we aimed to evaluate whether exposure to polystyrene (PS) NPs (diameter: 23.03 ± 0.266 nm) alters the behavior (locomotor, anxiety-like and antipredator) of male Swiss mice, induces brain antioxidant activity, and erythrocyte DNA damage. For this, the animals were exposed to NPs for 20 days at different doses (6.5 ng/kg and 6500 ng/kg). Initially, we did not observe any effect of pollutants on the locomotor activity of the animals (inferred via open field test and Basso mouse scale for locomotion). However, we noticed an anxiolytic-like behavior (in the open field test) and alterations in the antipredatory defensive response of mice exposed to PS NPs, when confronted with their predator potential (snake, Pantherophis guttatus). Furthermore, such changes were associated with suppressing brain antioxidant activity, inferred by lower DPPH radical scavenging activity, reduced total glutathione content, as well as the translocation and accumulation of NPs in the brain of the animals. In addition, we noted that the treatments induced DNA damage, evaluated via a single-cell gel electrophoresis assay (comet assay) applied to circulating erythrocytes of the animals. However, we did not observe a dose-response effect for all biomarkers evaluated and the estimated accumulation of PS NPs in the brain. The values of the integrated biomarker response index and the results of the principal component analysis (PCA) and the hierarchical clustering analysis confirmed the similarity between the responses of animals exposed to different doses of PS NPs. Therefore, our study sheds light on how PS NPs can impact mammals and reinforce the ecotoxicological risk associated with the dispersion of these pollutants in natural environments and their uptake by mammals.
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Affiliation(s)
| | - Ítalo Nascimento Freitas
- Laboratory of Toxicology Applied to the Environment, Goiano Federal Institute, Urutaí, GO, Brazil; Post-Graduation Program in Ecology, Conservation, and Biodiversity, Federal University of Uberlândia, Uberlândia, MG, Brazil
| | - Nabisab Mujawar Mubarak
- Petroleum and Chemical Engineering, Faculty of Engineering, Universiti Teknologi Brunei, Bandar Seri Begawan BE1410, Brunei Darussalam
| | - Md Mostafizur Rahman
- Laboratory of Environmental Health and Ecotoxicology, Department of Environmental Sciences, Jahangirnagar University, Dhaka 1342, Bangladesh
| | | | | | - Damià Barceló
- Catalan Institute for Water Research (ICRA-CERCA), H2O Building, Scientific and Technological Park of the University of Girona, Emili Grahit 101, 17003, Girona, Spain; Water and Soil Quality Research Group, Department of Environmental Chemistry, Institute of Environmental Assessment and Water Research (IDAEA-CSIC), JordiGirona 1826, 08034, Barcelona, Spain
| | | | - Guilherme Malafaia
- Laboratory of Toxicology Applied to the Environment, Goiano Federal Institute, Urutaí, GO, Brazil; Post-Graduation Program in Conservation of Cerrado Natural Resources, Goiano Federal Institute, Urutaí, GO, Brazil; Post-Graduation Program in Ecology, Conservation, and Biodiversity, Federal University of Uberlândia, Uberlândia, MG, Brazil; Post-Graduation Program in Biotechnology and Biodiversity, Federal University of Goiás, Goiânia, GO, Brazil.
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6
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Wise JP, Young JL, Cai J, Cai L. Current understanding of hexavalent chromium [Cr(VI)] neurotoxicity and new perspectives. ENVIRONMENT INTERNATIONAL 2022; 158:106877. [PMID: 34547640 PMCID: PMC8694118 DOI: 10.1016/j.envint.2021.106877] [Citation(s) in RCA: 94] [Impact Index Per Article: 31.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2021] [Revised: 09/08/2021] [Accepted: 09/09/2021] [Indexed: 05/21/2023]
Abstract
Hexavalent chromium [Cr(VI)] is a global environmental pollutant that increases risk for several types of cancers and is increasingly being recognized as a neurotoxicant. Traditionally, the brain has been viewed as a largely post-mitotic organ due to its specialized composition of neurons, and consequently, clastogenic effects were not considered in neurotoxicology. Today, we understand the brain is composed of at least eight distinct cell types - most of which continue mitotic activity throughout lifespan. We have learned these dividing cells play essential roles in brain and body health. This review focuses on Cr(VI), a potent clastogen and known human carcinogen, as a potentially neurotoxic agent targeting mitotic cells of the brain. Despite its well-established role as a human carcinogen, Cr(VI) neurotoxicity studies have failed to find a significant link to brain cancers. In the few studies that did find a link, Cr(VI) was identified as a risk for gliomas. Instead, in the human brain, Cr(VI) appears to have more subtle deleterious effects that can impair childhood learning and attention development, olfactory function, social memory, and may contribute to motor neuron diseases. Studies of Cr(VI) neurotoxicity with animal and cell culture models have demonstrated elevated markers of oxidative damage and redox stress, with widespread neurodegeneration. One study showed mice exposed to Cr(VI)-laden tannery effluent exhibited longer periods of aggressive behavior toward an "intruder" mouse and took longer to recognize mice previously encountered, recapitulating the social memory deficits observed in humans. Here we conducted a critical review of the available literature on Cr(VI) neurotoxicity and synthesize the collective observations to thoroughly evaluate Cr(VI) neurotoxicity - much remains to be understood and recognized.
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Affiliation(s)
- John P Wise
- Department of Pharmacology and Toxicology, University of Louisville School of Medicine, Louisville, KY 40292, USA; Pediatric Research Institute, The Department of Pediatrics, University of Louisville School of Medicine, Louisville, KY 40292, USA.
| | - Jamie L Young
- Department of Pharmacology and Toxicology, University of Louisville School of Medicine, Louisville, KY 40292, USA; Pediatric Research Institute, The Department of Pediatrics, University of Louisville School of Medicine, Louisville, KY 40292, USA
| | - Jun Cai
- Department of Pharmacology and Toxicology, University of Louisville School of Medicine, Louisville, KY 40292, USA; Pediatric Research Institute, The Department of Pediatrics, University of Louisville School of Medicine, Louisville, KY 40292, USA
| | - Lu Cai
- Department of Pharmacology and Toxicology, University of Louisville School of Medicine, Louisville, KY 40292, USA; Pediatric Research Institute, The Department of Pediatrics, University of Louisville School of Medicine, Louisville, KY 40292, USA
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7
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Li S, Baiyun R, Lv Z, Li J, Han D, Zhao W, Yu L, Deng N, Liu Z, Zhang Z. Exploring the kidney hazard of exposure to mercuric chloride in mice:Disorder of mitochondrial dynamics induces oxidative stress and results in apoptosis. CHEMOSPHERE 2019; 234:822-829. [PMID: 31247492 DOI: 10.1016/j.chemosphere.2019.06.096] [Citation(s) in RCA: 57] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/14/2019] [Revised: 05/25/2019] [Accepted: 06/12/2019] [Indexed: 06/09/2023]
Abstract
Mercury is one of the 10 toxic chemicals with major public health concerns. Continuous exposure to low levels of heavy metals including mercury is related to renal injury, especially in children. This study investigated the possible molecular mechanism of inorganic mercury-induced kidney injury. Twenty eight Kunming mice were divided into four groups (n = 7), and treated with 0, 20, 40, 80 mg/L mercuric chloride (HgCl2) in drinking water for 16 weeks respectively. All the HgCl2 exposure mice displayed different degrees of renal injury, which was diagnosed by hematoxylin and eosin stain, biochemical analysis, and ultrastructure examination. The treatment of HgCl2 inhibited the silent information regulator two ortholog 1 (Sirt1)/peroxisome proliferator-activated receptor-γ coactivator-1α (PGC-1α) signaling pathway and resulted the disorder of mitochondrial dynamics, as evidenced by the increasing expression of dynamin-related protein 1 and decreasing expression of mitofusin 2. Meanwhile, HgCl2 inhibited the nuclear factor erythroid 2-related factor 2 (Nrf2) axis. The abnormality of mitochondrial dynamics and the suppression of Nrf2 axis exacerbated oxidative stress, and then induced cell apoptosis. These findings demonstrated that the disorder of mitochondrial dynamics induced by HgCl2 activated oxidative stress, and further resulted in renal apoptosis through inhibiting the Sirt1/PGC-1α signaling pathway and the Nrf2 axis.
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Affiliation(s)
- Siyu Li
- College of Veterinary Medicine, Northeast Agricultural University, 600 Changjiang Road, Harbin 150030, China
| | - Ruiqi Baiyun
- College of Veterinary Medicine, Northeast Agricultural University, 600 Changjiang Road, Harbin 150030, China
| | - Zhanjun Lv
- College of Veterinary Medicine, Northeast Agricultural University, 600 Changjiang Road, Harbin 150030, China; Heilongjiang Key Laboratory for Laboratory Animals and Comparative Medicine, 600 Changjiang Road, Harbin 150030, China
| | - Jiayi Li
- College of Veterinary Medicine, Northeast Agricultural University, 600 Changjiang Road, Harbin 150030, China
| | - Dongxu Han
- College of Veterinary Medicine, Northeast Agricultural University, 600 Changjiang Road, Harbin 150030, China
| | - Wenyue Zhao
- College of Veterinary Medicine, Northeast Agricultural University, 600 Changjiang Road, Harbin 150030, China
| | - Lanjie Yu
- College of Veterinary Medicine, Northeast Agricultural University, 600 Changjiang Road, Harbin 150030, China
| | - Ning Deng
- College of Veterinary Medicine, Northeast Agricultural University, 600 Changjiang Road, Harbin 150030, China
| | - Zhiyan Liu
- College of Veterinary Medicine, Northeast Agricultural University, 600 Changjiang Road, Harbin 150030, China
| | - Zhigang Zhang
- College of Veterinary Medicine, Northeast Agricultural University, 600 Changjiang Road, Harbin 150030, China; Heilongjiang Key Laboratory for Laboratory Animals and Comparative Medicine, 600 Changjiang Road, Harbin 150030, China.
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8
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Chagas TQ, da Silva Alvarez TG, Montalvão MF, Mesak C, Rocha TL, da Costa Araújo AP, Malafaia G. Behavioral toxicity of tannery effluent in zebrafish (Danio rerio) used as model system. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 685:923-933. [PMID: 31247439 DOI: 10.1016/j.scitotenv.2019.06.253] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2019] [Revised: 06/11/2019] [Accepted: 06/16/2019] [Indexed: 06/09/2023]
Abstract
The ecotoxicity of untreated tannery effluent (UTE) in several animal models has been reported; however, its effects on fish behavior, and neurotoxicity, remain unknown. Thus, the hypothesis that the chronic exposure to UTE can induce behavioral changes in adult zebrafish (Danio rerio) representatives, even when it is highly diluted in water, was tested. Animals exposed to 0.1% and 0.3% UTE for 30 days showed behavioral changes in visual social preference tests through their co-specific and antipredator defensive responses, which had indicated neurotoxic actions. Zebrafish exposed to UTE appeared to have not co-specific preference when it is paired with Poecilia sphrenops. In addition, only animals in the control group showed aversive behavior in the presence of the herein used predatory stimulus (Oreochromis niloticus). However, Cr, Na and Mg bioaccumulation was higher in zebrafish exposed to 0.1% and 0.3% UTE, although anxiogenic and anxiolytic effects were not observed in the models exposed to UTE in the novel tank diving or aggressiveness-increase-in-the-mirror tests. This outcome allowed associating the exposure to the pollutant and bioaccumulation with the observed behavioral changes. The present study is pioneer in scientifically evidencing the sublethal impact caused by chronic exposure to UTE in experimental environment simulating realistic aquatic pollution conditions. Accordingly, results in the current research should motivate further investigations to broaden the knowledge about the real magnitude of UTE biological impacts on the aquatic biota.
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Affiliation(s)
- Thales Quintão Chagas
- Biological Research Laboratory, Post-graduation Program in Conservation of Cerrado Natural Resources, Goiano Federal Institute, Urutaí Campus, Urutaí, GO, Brazil
| | - Tenilce Gabriela da Silva Alvarez
- Biological Research Laboratory, Post-graduation Program in Conservation of Cerrado Natural Resources, Goiano Federal Institute, Urutaí Campus, Urutaí, GO, Brazil
| | - Mateus Flores Montalvão
- Biological Research Laboratory, Post-graduation Program in Conservation of Cerrado Natural Resources, Goiano Federal Institute, Urutaí Campus, Urutaí, GO, Brazil
| | - Carlos Mesak
- Biological Research Laboratory, Post-graduation Program in Conservation of Cerrado Natural Resources, Goiano Federal Institute, Urutaí Campus, Urutaí, GO, Brazil
| | - Thiago Lopes Rocha
- Laboratory of Environmental Biotechnology and Ecotoxicology, Institute of Tropical Pathology and Public Health, Federal University of Goiás, Goiânia, GO, Brazil; Post-graduation Program in Genetics and Molecular Biology, Institute of Biological Sciences, Federal University of Goiás, Goiânia, GO, Brazil
| | - Amanda Pereira da Costa Araújo
- Biological Research Laboratory, Post-graduation Program in Conservation of Cerrado Natural Resources, Goiano Federal Institute, Urutaí Campus, Urutaí, GO, Brazil
| | - Guilherme Malafaia
- Biological Research Laboratory, Post-graduation Program in Conservation of Cerrado Natural Resources, Goiano Federal Institute, Urutaí Campus, Urutaí, GO, Brazil; Post-graduation Program in Genetics and Molecular Biology, Institute of Biological Sciences, Federal University of Goiás, Goiânia, GO, Brazil.
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9
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Sampaio DMDR, Estrela FN, Mendes BDO, Estrela DDC, Montalvão MF, Mesak C, Silva FG, Araújo APDC, de Freitas CS, Gontijo BV, Rodrigues ASDL, Malafaia G. Ingestion of tannery effluent as a risk factor to the health of birds: A toxicological study using Coturnix coturnix japonica as a model system. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 681:275-291. [PMID: 31103665 DOI: 10.1016/j.scitotenv.2019.05.046] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/28/2019] [Revised: 05/01/2019] [Accepted: 05/04/2019] [Indexed: 06/09/2023]
Abstract
Tannery industries generate large amounts of tannery effluents (TE), which have been considered highly toxic to various groups of animals. However, the identification and characterization of the impact of this mix of pollutants on birds is still highly incipient. So, our goal was to evaluate the possible biological changes of Coturnix coturnix japonica, exposed for 45 days, to different dilutions of TE (1.4%, 3.1% and 6.5%), using behavioural biomarkers, mutagenics and egg production. When submitted to the behavioural tests, quails that ingested TE presented behaviour compatible with an anxiolytic effect in the open field test; absence of emotional reactivity in the object recognition test; reduced rates of predation of Tenebrio molitor larvae (potential prey); as well as an anti-predatory defensive response deficit when confronted, especially with Felis catus males (potential predator). In addition, we observed increased biomass of the liver, increased feed conversion index and lower feed efficiency index; mutagenic effect of TE (inferred by the increase of nuclear erythrocyte abnormalities); reduced productive performance and egg quality, in addition to different staining patterns of the eggs produced by quails from the control group. Therefore, our study confirms the toxicity of TE in C. coturnix japonica, even in small dilutions. While behavioural changes demonstrate the neurotoxic potential of the pollutant, the other alterations suggest that the mechanisms of action of its chemical constituents are not selective, that is, they act systemically, acting synergistic, antagonistic or additively, causing harmful effects in animals.
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Affiliation(s)
- Douglas Marcel Dos Reis Sampaio
- Post-graduation Program in Cerrado Natural Resource Conservation and Biological Research Laboratory, Instituto Federal de Educação, Ciência e Tecnologia Goiano - Urutaí Campus, GO, Brazil
| | - Fernanda Neves Estrela
- Post-graduation Program in Cerrado Natural Resource Conservation and Biological Research Laboratory, Instituto Federal de Educação, Ciência e Tecnologia Goiano - Urutaí Campus, GO, Brazil
| | - Bruna de Oliveira Mendes
- Post-graduation Program in Cerrado Natural Resource Conservation and Biological Research Laboratory, Instituto Federal de Educação, Ciência e Tecnologia Goiano - Urutaí Campus, GO, Brazil
| | - Dieferson da Costa Estrela
- Instituto Federal de Educação, Ciência e Tecnologia Sul-rio-grandense - Jaguarão Campus, Rio Grande do Sul, RS, Brazil
| | - Mateus Flores Montalvão
- Post-graduation Program in Cerrado Natural Resource Conservation and Biological Research Laboratory, Instituto Federal de Educação, Ciência e Tecnologia Goiano - Urutaí Campus, GO, Brazil
| | - Carlos Mesak
- Post-graduation Program in Cerrado Natural Resource Conservation and Biological Research Laboratory, Instituto Federal de Educação, Ciência e Tecnologia Goiano - Urutaí Campus, GO, Brazil
| | | | - Amanda Pereira da Costa Araújo
- Post-graduation Program in Cerrado Natural Resource Conservation and Biological Research Laboratory, Instituto Federal de Educação, Ciência e Tecnologia Goiano - Urutaí Campus, GO, Brazil
| | - Carla Santos de Freitas
- Post-graduation Program in Chemistry, Universidade Federal de Goiás - Samambaia Campus, Goiânia, GO, Brazil
| | - Boniek Vaz Gontijo
- Post-graduation Program in Chemistry, Universidade Federal de Goiás - Samambaia Campus, Goiânia, GO, Brazil
| | - Aline Sueli de Lima Rodrigues
- Post-graduation Program in Cerrado Natural Resource Conservation and Biological Research Laboratory, Instituto Federal de Educação, Ciência e Tecnologia Goiano - Urutaí Campus, GO, Brazil
| | - Guilherme Malafaia
- Post-graduation Program in Cerrado Natural Resource Conservation and Biological Research Laboratory, Instituto Federal de Educação, Ciência e Tecnologia Goiano - Urutaí Campus, GO, Brazil.
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10
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Guimarães ATB, de Oliveira Ferreira R, de Souza JM, da Costa Estrela D, Talvani A, Souza DMS, Rocha TL, Malafaia G. Evaluating the reproductive toxicology of tannery effluent in male SWISS mice. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 648:1440-1452. [PMID: 30340289 DOI: 10.1016/j.scitotenv.2018.08.253] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/04/2018] [Revised: 08/19/2018] [Accepted: 08/19/2018] [Indexed: 06/08/2023]
Abstract
The transformation of skin in-natura into leather in tannery industries generates large volumes of organic matter that attract small mammals. i.e., rodents living close to these facilities. Animals foraging in the backyards of such industries get exposed to the effluent produced by them; however, attention has not been given to the impacts of such exposure on the reproductive biology of these animals. Thus, our study assessed whether the direct exposure to this effluent for periods longer than 90 days leads to reproductive loss in male Swiss mice. We assessed animals' sexual behavior at the end of the experimental period and analyzed their testicular histology, as well as semen quality and volume, besides measuring pro-inflammatory markers and assessing the reproductive performance of the exposed animals. Based on the herein collected data, mice exposed to the gross effluent collected in the backyard of a tannery industry, as well as to the effluent diluted in 5% of water, presented behavioral and histological changes in the testes, disorganized germinal cells in the seminiferous tubules and inflammatory process in intertubular spaces. The inflammatory process resulted from increased proinflammatory cytokine (IFN-gamma and CCL2) concentrations in the testes, fact that explained the larger number of sperm abnormalities and the reduced number of produced sperms. These factors, along with the previously reported changes, may have led to the low reproductive performance of animals exposed to the tested pollutant, which was assessed through the lethal dominant test. This pioneering article addressed the reproductive impact caused by the direct exposure of small rodents to tannery effluents. The research helped better understanding how these pollutants can influence natural ecosystems.
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Affiliation(s)
- Abraão Tiago Batista Guimarães
- Post-Graduation Program in Conservation of Cerrado Natural Resources, Goiano Federal Institute of Education, Science and Technology, - Urutaí Campus, GO, Brazil
| | - Raíssa de Oliveira Ferreira
- Post-Graduation Program in Conservation of Cerrado Natural Resources, Goiano Federal Institute of Education, Science and Technology, - Urutaí Campus, GO, Brazil
| | - Joyce Moreira de Souza
- Post-Graduation Program in Conservation of Cerrado Natural Resources, Goiano Federal Institute of Education, Science and Technology, - Urutaí Campus, GO, Brazil
| | | | - André Talvani
- Laboratory of Environmental Biotechnology and Ecotoxicology, Institute of Tropical Pathology and Public Health, Federal University of Goiás, Goiania, GO, Brazil
| | - Débora Maria Soares Souza
- Laboratory of Environmental Biotechnology and Ecotoxicology, Institute of Tropical Pathology and Public Health, Federal University of Goiás, Goiania, GO, Brazil
| | - Thiago Lopes Rocha
- Inflammation Immunobiology Lab, Federal University of Ouro Preto, Ouro Preto, Brazil
| | - Guilherme Malafaia
- Post-Graduation Program in Conservation of Cerrado Natural Resources, Goiano Federal Institute of Education, Science and Technology, - Urutaí Campus, GO, Brazil.
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11
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de Souza JM, Rabelo LM, de Faria DBG, Guimarães ATB, da Silva WAM, Rocha TL, Estrela FN, Chagas TQ, de Oliveira Mendes B, Malafaia G. The intake of water containing a mix of pollutants at environmentally relevant concentrations leads to defensive response deficit in male C57Bl/6J mice. THE SCIENCE OF THE TOTAL ENVIRONMENT 2018; 628-629:186-197. [PMID: 29432930 DOI: 10.1016/j.scitotenv.2018.02.040] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/26/2017] [Revised: 02/03/2018] [Accepted: 02/03/2018] [Indexed: 06/08/2023]
Abstract
Previous studies have individually confirmed the toxic effects from different pollutants on mammals. However, effects resulting from the exposure of these animals to multi-pollutant mixes have not been studied so far. Thus, the aim of the current study is to assess the effect from the chronic exposure (105days) of C57Bl/6J mice to a mix of pollutants on their response to potential predators. In order to do so, the following groups were formed: "control", "Mix 1× [compounds from 15 pollutants identified in surface waters at environmentally relevant concentration (ERC)]", "Mix 10×" and "Mix 25×" (concentrations 10 and 25 times higher than the ERC). From the 100th experimental day on, the animals were subjected to tests in order to investigate whether they showed locomotor, visual, olfactory and auditory changes, since these abilities are essential to their anti-predatory behavior. Next, the animals' behavior towards potential predators (Felis catus and Pantherophis guttatus) was assessed. The herein collected data did not show defensive response from any of the experimental groups to the predatory stimulus provided by P. guttatus. However, the control animals, only, presented anti-predatory behavior when F. catus was introduced in the apparatus, fact that suggests defensive response deficit resulting from the treatments. Thus, the current study is pioneer in showing that the chronic intake of water containing a mix of pollutants (even at low concentrations) leads to behavioral disorders able to affect the survival and population dynamics of mammalian species at ecological level.
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Affiliation(s)
- Joyce Moreira de Souza
- Post-Graduation Program in Conservation of Cerrado Natural Resources, Goiano Federal Institute of Education, Science and Technology, Urutaí Campus, GO, Brazil
| | | | - Denise Braga Gomes de Faria
- Post-Graduation Program in Conservation of Cerrado Natural Resources, Goiano Federal Institute of Education, Science and Technology, Urutaí Campus, GO, Brazil
| | - Abraão Tiago Batista Guimarães
- Post-Graduation Program in Conservation of Cerrado Natural Resources, Goiano Federal Institute of Education, Science and Technology, Urutaí Campus, GO, Brazil
| | - Wellington Alves Mizael da Silva
- Post-Graduation Program in Conservation of Cerrado Natural Resources, Goiano Federal Institute of Education, Science and Technology, Urutaí Campus, GO, Brazil
| | - Thiago Lopes Rocha
- Laboratory of Environmental Biotechnology and Ecotoxicology, Institute of Tropical Pathology and Public Health, Federal University of Goiás, Goiânia, Goiás, Brazil
| | | | | | - Bruna de Oliveira Mendes
- Post-Graduation Program in Conservation of Cerrado Natural Resources, Goiano Federal Institute of Education, Science and Technology, Urutaí Campus, GO, Brazil
| | - Guilherme Malafaia
- Post-Graduation Program in Conservation of Cerrado Natural Resources, Goiano Federal Institute of Education, Science and Technology, Urutaí Campus, GO, Brazil; Biological Research Laboratory, Goiano Federal Institute, Urutaí Campus, GO, Brazil.
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12
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Quintão TC, Rabelo LM, Alvarez TGS, Guimarães AT, Rodrigues ASL, Cardoso LS, Ferreira RO, Malafaia G. Precopulatory sexual behavior of male mice is changed by the exposure to tannery effluent. CHEMOSPHERE 2018; 195:312-324. [PMID: 29272800 DOI: 10.1016/j.chemosphere.2017.12.087] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2017] [Revised: 12/12/2017] [Accepted: 12/13/2017] [Indexed: 06/07/2023]
Abstract
Although the toxic potential of tannery effluents (TE) is acknowledged, the impacts these residues have on mammals who intake water contaminated with this pollutant are not completely known. Thus, in order to broaden the knowledge about how these contaminants affect the biota, the aim of the current study is to assess different behavioral categories (e.g.: sexual odor preference, opposite-sex attraction, and sexual discrimination) related to the sexual motivation and pre-copulation of male Swiss mice subjected to TE intake for 30 days, at concentrations 0.8% and 22%. The animals were subjected to locomotor performance evaluation through the Basso Mouse Scale (BMS), as well as to the open field (OF), odor preference (OPT), sexual orientation (SOT) and to scent marking tests (SMT) one week before the experiment ended. Our results evidenced that the treatments did not affect the animals' locomotor activity (in OF and BMS) or caused changes compatible to anxiogenic or anxiolytic behavior (in OF). However, mice exposed to TE (at both concentrations) presented discriminatory capacity deficit in the OPT test at the time to distinguish conspecific odors from the same sex, and from the opposite sex. They randomly explored (without preference) males and females, did not responded to stimuli in the SOT test, as well as did not appear capable of detecting female odor (in estrus phase) during the SMT. Thus, the current study was pioneer in evidencing that TE can influence the reproduction and the population dynamics of small rodents who intake water contaminated with the pollutant.
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Affiliation(s)
- Thales Chagas Quintão
- Biological Research Laboratory, Goiano Federal Institute - Urutaí Campus, GO, Brazil
| | | | - T G S Alvarez
- Biological Research Laboratory, Goiano Federal Institute - Urutaí Campus, GO, Brazil
| | - A T Guimarães
- Post-graduation Program in the Conservation of Cerrado Natural Resources and Biological Research Laboratory, Goiano Federal Institute - Urutaí Campus, GO, Brazil
| | - A S L Rodrigues
- Post-graduation Program in the Conservation of Cerrado Natural Resources and Biological Research Laboratory, Goiano Federal Institute - Urutaí Campus, GO, Brazil
| | - L S Cardoso
- Biological Research Laboratory, Goiano Federal Institute - Urutaí Campus, GO, Brazil
| | - R O Ferreira
- Biological Research Laboratory, Goiano Federal Institute - Urutaí Campus, GO, Brazil
| | - Guilherme Malafaia
- Biological Research Laboratory, Goiano Federal Institute - Urutaí Campus, GO, Brazil; Post-graduation Program in the Conservation of Cerrado Natural Resources and Biological Research Laboratory, Goiano Federal Institute - Urutaí Campus, GO, Brazil.
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