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Ghobakhloo S, Khoshakhlagh AH, Mostafaii GR, Carlsen L. Biomonitoring of metals in the blood and urine of waste recyclers from exposure to airborne fine particulate matter (PM 2.5). JOURNAL OF ENVIRONMENTAL HEALTH SCIENCE & ENGINEERING 2025; 23:2. [PMID: 39583880 PMCID: PMC11582262 DOI: 10.1007/s40201-024-00924-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/06/2024] [Accepted: 10/21/2024] [Indexed: 11/26/2024]
Abstract
This is the first systematic investigation of occupational exposure to toxic metals among waste recyclers in municipal waste recycling facilities. Concentrations of heavy metals (HMs) in the blood and urine of exposed recyclers in different jobs were compared to control groups (administrative department), identifying possible work-related and socio-demographic exposure factors. The potential relationship between HMs levels in PM2.5 and HM concentrations in the blood and urine of recyclers was studied for ten elements. Mean concentrations of HMs of recyclers were significantly higher than for the control group. Over 50% of the waste recyclers had HM levels higher than the recommended limits. The study revealed that most of the waste recyclers engaged in a minimum of three tasks, posing a challenge in establishing a correlation between specific tasks and the levels of elements monitored through biomonitoring. Co levels in blood and Fe levels in the urine of waste recyclers have a significant relationship with the increase in daily working hours. Among the variables related to the participant's demographic information, the level of education and monthly income were significantly different compared to the control group. Also, a significant correlation was found between HM levels in PM2.5 personal exposure and recyclers' urine and blood. Management controls include workflow or, in other words, alternate relocation of workers exposed to severe risks. Engineering controls such as ventilation systems, applying appropriate personal protective equipment (PPE), and risk management methods are the implementation cases to reduce exposure. Graphical abstract Supplementary Information The online version contains supplementary material available at 10.1007/s40201-024-00924-y.
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Affiliation(s)
- Safiye Ghobakhloo
- Department of Environmental Health Engineering, School of Health, Kashan University of Medical Sciences, Kashan, Iran
| | - Amir Hossein Khoshakhlagh
- Department of Occupational Health Engineering, School of Health, Kashan University of Medical Sciences, Kashan, Iran
| | - Gholam Reza Mostafaii
- Department of Environmental Health Engineering, School of Health, Kashan University of Medical Sciences, Kashan, Iran
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Huang Y, Zhu H, Zhao H, Xu H, Xiong X, Tang C, Xu J. Interactions between arsenic and nitrogen regulate nitrogen availability and arsenic mobility in flooded paddy soils. JOURNAL OF HAZARDOUS MATERIALS 2024; 480:135981. [PMID: 39342852 DOI: 10.1016/j.jhazmat.2024.135981] [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: 06/18/2024] [Revised: 09/19/2024] [Accepted: 09/25/2024] [Indexed: 10/01/2024]
Abstract
In paddy soils, arsenic (As) stress influences nitrogen (N) transformation while application of N fertilizers during rice cropping affects As transformation. However, specific interactive effects between As and N in flooded paddy soils on As mobility and N availability were unclear. Here, we examined N and As dynamics in flooded paddy soils treated with four As levels (0, 30, 80 and 150 mg kg-1) and three urea additions (0, 4 and 8 mmol N kg-1). Arsenic contamination inhibited diazotrophs (nifH) and fungi but promoted AOA and denitrification genes (narG, nirK, nirS), decreasing dissolved organic N, NH4+-N and NO3--N. Besides, urea application stimulated As- and Fe-reducing bacteria (arrA and Geo) coupled with anammox. On Day 28, the addition of 8 mmol N kg-1 increased total As concentrations in solutions of soils treated with 30 and 80 mg As kg-1 by 2.4 and 1.8 times compared with the nil-N control. In contrast, at 150 mg As kg-1, it decreased the total As concentration in soil solution by 63 % through facilitating As(III) oxidation coupled with NO3--N reduction. These results indicate that As contamination decreases N availability, but urea application affects As mobility, depending on As contamination level.
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Affiliation(s)
- Yu Huang
- Institute of Soil and Water Resources and Environmental Science, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China; Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, Zhejiang University, Hangzhou 310058, China
| | - Hang Zhu
- Institute of Soil and Water Resources and Environmental Science, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China; Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, Zhejiang University, Hangzhou 310058, China
| | - Haochun Zhao
- Institute of Soil and Water Resources and Environmental Science, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China; Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, Zhejiang University, Hangzhou 310058, China
| | - Haojie Xu
- Institute of Soil and Water Resources and Environmental Science, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China; Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, Zhejiang University, Hangzhou 310058, China
| | - Xinquan Xiong
- Institute of Soil and Water Resources and Environmental Science, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China; Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, Zhejiang University, Hangzhou 310058, China
| | - Caixian Tang
- Department of Animal, Plant & Soil Sciences / La Trobe Institute for Sustainable Agriculture and Food, La Trobe University, Bundoora, VIC 3086, Australia
| | - Jianming Xu
- Institute of Soil and Water Resources and Environmental Science, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China; Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, Zhejiang University, Hangzhou 310058, China.
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Sharma BM, Komprdová K, Lörinczová K, Kuta J, Přibylová P, Scheringer M, Šebejová L, Piler P, Zvonař M, Klánová J. Human biomonitoring of essential and toxic trace elements (heavy metals and metalloids) in urine of children, teenagers, and young adults from a Central European Cohort in the Czech Republic. JOURNAL OF EXPOSURE SCIENCE & ENVIRONMENTAL EPIDEMIOLOGY 2024:10.1038/s41370-024-00724-4. [PMID: 39414997 DOI: 10.1038/s41370-024-00724-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/24/2024] [Revised: 09/27/2024] [Accepted: 09/27/2024] [Indexed: 10/18/2024]
Abstract
BACKGROUND Exposure to toxic trace elements, which include metals and metalloids, can induce adverse health effects, including life-threatening diseases. Conversely, essential trace elements are vital for bodily functions, yet their excessive (or inadequate) intake may pose health risks. Therefore, identifying levels and determinants of exposure to trace elements is crucial for safeguarding human health. METHODS The present study analyzed urinary concentrations of 14 trace elements (arsenic, cadmium, cobalt, chromium, copper, mercury, manganese, molybdenum, nickel, lead, antimony, selenium, thallium, and zinc) and their exposure determinants in 711 individuals, spanning from children to young adults from a Central European population from the Czech Republic. Multivariate linear regression and non-parametric Kruskal-Wallis ANOVA were used to investigate exposure determinants. Estimates of 95th percentile concentrations and confidence intervals were carried out to establish reference values (RV95). The study also assessed the percentage of population exceeding health-based guidance values (GVs) to gauge health risks. RESULTS Young adults showed elevated toxic element concentrations, whereas children exhibited higher concentrations of essential elements. Mercury concentrations were associated with both dental amalgam filling count and seafood intake; arsenic concentrations were associated with seafood, rice, and mushroom consumption. Mushroom consumption also influenced lead concentrations. Sex differences were found for cadmium, zinc, nickel, and cobalt. Between 17.9% and 25% of the participants exceeded recommended GV for arsenic, while 2.4% to 2.8% exceeded GV for cadmium. Only one participant exceeded the GV for mercury, and none exceeded GVs for chromium and thallium. Essential trace elements' GVs were surpassed by 38% to 68.5% participants for zinc, 1.3% to 1.8% for molybdenum, and 0.2% to 0.3% for selenium. IMPACT The present study examines trace element exposure in a Central European population from the Czech Republic, unveiling elevated exposure levels of toxic elements in young adults and essential elements in children. It elucidates key determinants of trace element exposure, including dietary and lifestyle indicators as well as dental amalgam fillings. Additionally, the study establishes novel reference values and a comparison with established health-based human biomonitoring guidance values, which are crucial for public health decision-making. This comprehensive biomonitoring study provides essential data to inform public health policies and interventions.
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Affiliation(s)
- Brij Mohan Sharma
- RECETOX, Faculty of Science, Masaryk University, Kotlarska 2, Brno, Czech Republic
- Institute of Biogeochemistry and Pollutant Dynamics (IBP), ETH Zürich, 8092, Zürich, Switzerland
| | - Klára Komprdová
- RECETOX, Faculty of Science, Masaryk University, Kotlarska 2, Brno, Czech Republic.
| | - Katarína Lörinczová
- RECETOX, Faculty of Science, Masaryk University, Kotlarska 2, Brno, Czech Republic
| | - Jan Kuta
- RECETOX, Faculty of Science, Masaryk University, Kotlarska 2, Brno, Czech Republic
| | - Petra Přibylová
- RECETOX, Faculty of Science, Masaryk University, Kotlarska 2, Brno, Czech Republic
| | - Martin Scheringer
- RECETOX, Faculty of Science, Masaryk University, Kotlarska 2, Brno, Czech Republic
- Institute of Biogeochemistry and Pollutant Dynamics (IBP), ETH Zürich, 8092, Zürich, Switzerland
| | - Ludmila Šebejová
- RECETOX, Faculty of Science, Masaryk University, Kotlarska 2, Brno, Czech Republic
| | - Pavel Piler
- RECETOX, Faculty of Science, Masaryk University, Kotlarska 2, Brno, Czech Republic
| | - Martin Zvonař
- RECETOX, Faculty of Science, Masaryk University, Kotlarska 2, Brno, Czech Republic
- Faculty of Sports Studies, Masaryk university, Kamenice 753/5, Brno, Czech Republic
| | - Jana Klánová
- RECETOX, Faculty of Science, Masaryk University, Kotlarska 2, Brno, Czech Republic
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Mahadik SR, Reddy ART, Choudhary K, Nama L, Jamdade MS, Singh S, Murti K, Kumar N. Arsenic induced cardiotoxicity: An approach for molecular markers, epigenetic predictors and targets. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2024; 111:104558. [PMID: 39245244 DOI: 10.1016/j.etap.2024.104558] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2024] [Revised: 08/15/2024] [Accepted: 08/31/2024] [Indexed: 09/10/2024]
Abstract
Arsenic, a ubiquitous environmental toxicant, has been acknowledged as a significant issue for public health due to its widespread pollution of drinking water and food supplies. The present review aimed to study the toxicity associated with the cardiac system. Prolonged exposure to arsenic has been associated with several harmful health outcomes, especially cardiotoxicity. Arsenic-induced cardiotoxicity encompasses a range of cardiovascular abnormalities, including cardiac arrhythmias, ischemic heart disease, and cardiomyopathy. To tackle this toxicity, understanding the molecular markers, epigenetic predictors, and targets involved in arsenic-induced cardiotoxicity is essential for creating preventative and therapeutic approaches. For preventive measures against this heavy metal poisoning of groundwater, it is crucial to regularly monitor water quality, re-evaluate scientific findings, and educate the public about the possible risks. This review thoroughly summarised what is currently known in this field, highlighting the key molecular markers, epigenetic modifications, and potential therapeutic targets associated with arsenic-induced cardiotoxicity.
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Affiliation(s)
- Sakshi Ramesh Mahadik
- Department of Regulatory Toxicology, National Institute of Pharmaceutical Education and Research, Hajipur, Vaishali, Bihar 844102, India
| | - Annem Ravi Teja Reddy
- Department of Regulatory Toxicology, National Institute of Pharmaceutical Education and Research, Hajipur, Vaishali, Bihar 844102, India
| | - Khushboo Choudhary
- Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research, Hajipur, Vaishali, Bihar 844102, India
| | - Lokesh Nama
- Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research, Hajipur, Vaishali, Bihar 844102, India
| | - Mohini Santosh Jamdade
- Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research, Hajipur, Vaishali, Bihar 844102, India
| | - Sanjiv Singh
- Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research, Hajipur, Vaishali, Bihar 844102, India
| | - Krishna Murti
- Department of Pharmacy Practice, National Institute of Pharmaceutical Education and Research, Hajipur, Vaishali, Bihar 844102, India
| | - Nitesh Kumar
- Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research, Hajipur, Vaishali, Bihar 844102, India.
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Zanetta‐Colombo NC, Manzano CA, Brombierstäudl D, Fleming ZL, Gayo EM, Rubinos DA, Jerez Ó, Valdés J, Prieto M, Nüsser M. Blowin' in the Wind: Mapping the Dispersion of Metal(loid)s From Atacama Mining. GEOHEALTH 2024; 8:e2024GH001078. [PMID: 39355274 PMCID: PMC11443516 DOI: 10.1029/2024gh001078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/17/2024] [Revised: 08/21/2024] [Accepted: 08/29/2024] [Indexed: 10/03/2024]
Abstract
The Atacama Desert's naturally elevated metal(loid)s pose a unique challenge for assessing the environmental impact of mining, particularly for indigenous communities residing in these areas. This study investigates how copper mining influences the dispersion of these elements in the wind-transportable fraction (<75 μm) of surface sediments across an 80 km radius. We employed a multi-pronged approach, utilizing spatial modeling to map element distributions, exponential decay analysis to quantify concentration decline with distance, regime shift modeling to identify dispersion pattern variations, and pollution assessment to evaluate impact. Our results reveal significant mining-driven increases in surface concentrations of copper (Cu), molybdenum (Mo), and arsenic (As). Notably, within the first 20 km, concentrations peaked at 1,016 mg kg⁻1 for Cu, 31 mg kg⁻1 for Mo, and a remarkable 165 mg kg⁻1 for As. Cu and Mo displayed significant dispersion, extending up to 50 km from the source. However, As exhibited the most extensive reach, traveling up to 70 km downwind, highlighting the far-reaching ecological footprint of mining operations. Mineralogical analyses corroborated these findings, identifying mining-related minerals in surface sediments far beyond the immediate mining area. Although pollution indices based on the proposed Local Geochemical Background reveal significant contamination across the study area, establishing accurate pre-industrial baseline values is essential for a more reliable assessment. This study challenges the concept of "natural pollution" by demonstrating that human activities exacerbate baseline metal(loid)s levels. Expanding monitoring protocols is imperative to comprehensively assess the combined effects of multiple emission sources, including mining and natural processes, in safeguarding environmental and human health for future generations.
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Affiliation(s)
- Nicolás C. Zanetta‐Colombo
- Department of GeographySouth Asia InstituteHeidelberg UniversityHeidelbergGermany
- Heidelberg Center for the Environment (HCE)Heidelberg UniversityHeidelbergGermany
| | - Carlos A. Manzano
- Departamento de QuímicaFacultad de CienciasUniversidad de ChileSantiagoChile
- School of Public HealthSan Diego State UniversitySan DiegoCAUSA
| | | | - Zoë L. Fleming
- Centro de Investigación en Tecnologías para la SociedadUniversidad Del DesarrolloSantiagoChile
- Center for Climate and Resilience Research (CR)2SantiagoChile
| | - Eugenia M. Gayo
- Center for Climate and Resilience Research (CR)2SantiagoChile
- Departamento de GeografíaUniversidad de ChileSantiagoChile
| | - David A. Rubinos
- Sustainable Minerals Institute–International Centre of Excellence Chile (SMI‐ICE‐Chile), The University of Queensland, AustraliaLas CondesSantiagoChile
| | - Óscar Jerez
- Instituto de Geología Económica Aplicada (GEA)University of ConcepciónConcepciónChile
| | - Jorge Valdés
- Laboratorio de Sedimentología y Paleoambientes (LASPAL)Facultad de Ciencias del Mar y de Recursos BiológicosInstituto de Ciencias Naturales Alexander von HumboldtUniversidad de AntofagastaAntofagastaChile
| | - Manuel Prieto
- Millenium Nucleus in Andean Peatlands (AndesPeat)AricaChile
- Departamento de Ciencias Históricas y GeográficasUniversidad de TarapacáAricaChile
| | - Marcus Nüsser
- Department of GeographySouth Asia InstituteHeidelberg UniversityHeidelbergGermany
- Heidelberg Center for the Environment (HCE)Heidelberg UniversityHeidelbergGermany
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Fu Z, Deng M, Zhou Q, Li S, Liu W, Cao S, Zhang L, Deng Y, Xi S. Arsenic activated GLUT1-mTORC1/HIF-1α-PKM2 positive feedback networks promote proliferation and migration of bladder epithelial cells. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 947:174538. [PMID: 38977090 DOI: 10.1016/j.scitotenv.2024.174538] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2024] [Revised: 07/03/2024] [Accepted: 07/04/2024] [Indexed: 07/10/2024]
Abstract
Arsenic (As) is recognized as a potent environmental contaminant associated with bladder carcinogenesis. However, its molecular mechanism remains unclear. Metabolic reprogramming is one of the hallmarks of cancer and is as a central feature of malignancy. Here, we performed the study of cross-talk between the mammalian target of rapamycin complex 1 (mTORC1)/ Hypoxia-inducible factor 1 alpha (HIF-1α) pathway and aerobic glycolysis in promoting the proliferation and migration of bladder epithelial cells treated by arsenic in vivo and in vitro. We demonstrated that arsenite promoted N-methyl-N-nitrosourea (MNU)-induced tumor formation in the bladder of rats and the malignant behavior of human ureteral epithelial (SV-HUC-1) cell. We found that arsenite positively regulated the mTORC1/HIF-1α pathway through glucose transporter protein 1 (GLUT1), which involved in the malignant progression of bladder epithelial cells relying on glycolysis. In addition, pyruvate kinase M2 (PKM2) increased by arsenite reduced the protein expressions of succinate dehydrogenase (SDH) and fumarate hydratase (FH), leading to the accumulation of tumor metabolites of succinate and fumarate. Moreover, heat shock protein (HSP)90, functioning as a chaperone protein, stabilized PKM2 and thereby regulated the proliferation and aerobic glycolysis in arsenite treated SV-HUC-1 cells. Taken together, these results provide new insights into mTORC1/HIF-1α and PKM2 networks as critical molecular targets that contribute to the arsenic-induced malignant progression of bladder epithelial cells.
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Affiliation(s)
- Zhushan Fu
- Key Laboratory of Environmental Stress and Chronic Disease Control & Prevention (China Medical University), Ministry of Education, Shenyang, Liaoning 110122, China; The Key Laboratory of Liaoning Province on Toxic and Biological Effects of Arsenic, Shenyang, Liaoning 110122, China; Department of Environmental Health, School of Public Health, China Medical University, Shenyang 110122, China
| | - Meiqi Deng
- Key Laboratory of Environmental Stress and Chronic Disease Control & Prevention (China Medical University), Ministry of Education, Shenyang, Liaoning 110122, China; Department of Neurosurgery, Shengjing Hospital of China Medical University, Shenyang, China
| | - Qing Zhou
- Key Laboratory of Environmental Stress and Chronic Disease Control & Prevention (China Medical University), Ministry of Education, Shenyang, Liaoning 110122, China; The Key Laboratory of Liaoning Province on Toxic and Biological Effects of Arsenic, Shenyang, Liaoning 110122, China; Department of Environmental Health, School of Public Health, China Medical University, Shenyang 110122, China
| | - Sihao Li
- Key Laboratory of Environmental Stress and Chronic Disease Control & Prevention (China Medical University), Ministry of Education, Shenyang, Liaoning 110122, China; The Key Laboratory of Liaoning Province on Toxic and Biological Effects of Arsenic, Shenyang, Liaoning 110122, China; Department of Environmental Health, School of Public Health, China Medical University, Shenyang 110122, China
| | - Weijue Liu
- Key Laboratory of Environmental Stress and Chronic Disease Control & Prevention (China Medical University), Ministry of Education, Shenyang, Liaoning 110122, China; The Key Laboratory of Liaoning Province on Toxic and Biological Effects of Arsenic, Shenyang, Liaoning 110122, China; Department of Environmental Health, School of Public Health, China Medical University, Shenyang 110122, China
| | - Siyan Cao
- Key Laboratory of Environmental Stress and Chronic Disease Control & Prevention (China Medical University), Ministry of Education, Shenyang, Liaoning 110122, China; The Key Laboratory of Liaoning Province on Toxic and Biological Effects of Arsenic, Shenyang, Liaoning 110122, China; Department of Environmental Health, School of Public Health, China Medical University, Shenyang 110122, China
| | - Lei Zhang
- Key Laboratory of Environmental Stress and Chronic Disease Control & Prevention (China Medical University), Ministry of Education, Shenyang, Liaoning 110122, China; The Key Laboratory of Liaoning Province on Toxic and Biological Effects of Arsenic, Shenyang, Liaoning 110122, China; Department of Environmental Health, School of Public Health, China Medical University, Shenyang 110122, China
| | - Yu Deng
- Key Laboratory of Environmental Stress and Chronic Disease Control & Prevention (China Medical University), Ministry of Education, Shenyang, Liaoning 110122, China; The Key Laboratory of Liaoning Province on Toxic and Biological Effects of Arsenic, Shenyang, Liaoning 110122, China; Department of Environmental Health, School of Public Health, China Medical University, Shenyang 110122, China.
| | - Shuhua Xi
- Key Laboratory of Environmental Stress and Chronic Disease Control & Prevention (China Medical University), Ministry of Education, Shenyang, Liaoning 110122, China; The Key Laboratory of Liaoning Province on Toxic and Biological Effects of Arsenic, Shenyang, Liaoning 110122, China; Department of Environmental Health, School of Public Health, China Medical University, Shenyang 110122, China.
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7
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Nayek U, Shenoy TN, Abdul Salam AA. Data mining of arsenic-based small molecules geometrics present in Cambridge structural database. CHEMOSPHERE 2024; 360:142349. [PMID: 38763400 DOI: 10.1016/j.chemosphere.2024.142349] [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: 08/21/2023] [Revised: 04/27/2024] [Accepted: 05/14/2024] [Indexed: 05/21/2024]
Abstract
Arsenic, ubiquitous in various industrial processes and consumer products, presents both essential functions and considerable toxicity risks, driving extensive research into safer applications. Our investigation, drawing from 7182 arsenic-containing molecules in the Cambridge Structural Database (CSD), outlines their diverse bonding patterns. Notably, 51% of these molecules exhibit cyclic connections, while 49% display acyclic ones. Arsenic forms eight distinct bonding types with other elements, with significant interactions observed, particularly with phenyl rings, O3 and F6 moieties. Top interactions involve carbon, nitrogen, oxygen, fluorine, sulfur, and arsenic itself. We meticulously evaluated average bond lengths under three conditions: without an R-factor cut-off, with R-factor ≤0.075, and with R-factor ≤0.05, supporting the credibility of our results. Comparative analysis with existing literature data enriches our understanding of arsenic's bonding behaviour. Our findings illuminate the structural attributes, molecular coordination, geometry, and bond lengths of arsenic with 68 diverse atoms, enriching our comprehension of arsenic chemistry. These revelations not only offer a pathway for crafting innovative and safer arsenic-based compounds but also foster the evolution of arsenic detoxification mechanisms, tackling pivotal health and environmental challenges linked to arsenic exposure across different contexts.
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Affiliation(s)
- Upendra Nayek
- Department of Atomic and Molecular Physics, Manipal Academy of Higher Education, Manipal, 576 104, Karnataka, India
| | - Thripthi Nagesh Shenoy
- Department of Atomic and Molecular Physics, Manipal Academy of Higher Education, Manipal, 576 104, Karnataka, India
| | - Abdul Ajees Abdul Salam
- Department of Atomic and Molecular Physics, Manipal Academy of Higher Education, Manipal, 576 104, Karnataka, India.
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Lerma-Treviño C, Hernández-Cadena L, Acosta-Montes JO, Hernández-Montes G, Alvarado-Cruz I, Romieu I, Barraza-Villarreal A. Prenatal Arsenic Exposure on DNA Methylation of C18ORF8 and ADAMTS9 Genes of Newborns from the POSGRAD Birth Cohort Study. TOXICS 2024; 12:476. [PMID: 39058128 PMCID: PMC11280544 DOI: 10.3390/toxics12070476] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/14/2024] [Revised: 06/08/2024] [Accepted: 06/27/2024] [Indexed: 07/28/2024]
Abstract
Exposure to arsenic (As) is a public health problem associated with cancer (skin and colon) and it has been reported that epigenetic changes may be a potential mechanism of As carcinogenesis. It is pertinent to evaluate this process in genes that have been associated with cancer, such as ADAMTS9 and C18ORF8. Gestation and delivery data were obtained from the POSGRAD study. Exposure to As was measured in urine during pregnancy. Gene methylation was performed by sodium bisulfite sequencing; 26 CpG sites for the C18ORF8 gene and 21 for ADAMTS9 were analyzed. These sites are located on the CpG islands near the start of transcription. Sociodemographic characteristics were obtained by a questionnaire. The statistical analysis was performed using multiple linear regression models adjusted for potential confounders. Newborns with an As exposure above 49.4 μg g-1 showed a decrease of 0.21% on the methylation rate in the sites CpG15, CpG19, and CpG21 of the C18ORF8 gene (adjusted ß = -0.21, p-value = 0.02). No statistically significant association was found between prenatal exposure to As and methylation of the ADAMTS9 gene. Prenatal exposure to As was associated with decreased DNA methylation at the CpG15, CpG19, and CpG21 sites of the C18ORF8 gene. These sites can provide information to elucidate epigenetic mechanisms associated with prenatal exposure to As and cancer.
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Affiliation(s)
- Carolina Lerma-Treviño
- Centro de Investigación en Nutrición y Salud, Instituto Nacional de Salud Pública, Cuernavaca 62100, Mexico;
| | - Leticia Hernández-Cadena
- Dirección de Salud Ambiental, Instituto Nacional de Salud Pública, Cuernavaca 62100, Mexico; (L.H.-C.); (I.R.)
| | | | - Georgina Hernández-Montes
- CIC-UNAM-Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City 14080, Mexico;
| | - Isabel Alvarado-Cruz
- Department of Cellular and Molecular Medicine, University of Arizona, Tucson, AZ 85724, USA;
| | - Isabelle Romieu
- Dirección de Salud Ambiental, Instituto Nacional de Salud Pública, Cuernavaca 62100, Mexico; (L.H.-C.); (I.R.)
| | - Albino Barraza-Villarreal
- Dirección de Salud Ambiental, Instituto Nacional de Salud Pública, Cuernavaca 62100, Mexico; (L.H.-C.); (I.R.)
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9
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Oncina-Cánovas A, Vioque J, Riutort-Mayol G, Soler-Blasco R, Irizar A, Barroeta Z, Fernández-Somoano A, Tardón A, Vrijheid M, Guxens M, Carey M, Meharg C, Ralphs K, McCreanor C, Meharg A, Signes-Pastor AJ. Pro-vegetarian dietary patterns and essential and heavy metal exposure in children of 4-5-years from the INfancia y medio Ambiente cohort (INMA). Int J Hyg Environ Health 2024; 257:114344. [PMID: 38430670 DOI: 10.1016/j.ijheh.2024.114344] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2023] [Revised: 02/22/2024] [Accepted: 02/24/2024] [Indexed: 03/05/2024]
Abstract
Dietary patterns provide a comprehensive assessment of food consumption, including essential nutrients and potential exposure to environmental contaminants. While pro-vegetarian (PVG) dietary patterns have shown health benefits in adults, their effects on children are less well studied. This study aims to explore the association between children's adherence to the most common PVG dietary patterns and their exposure to metals, assessed through urine concentration. In our study, we included a population of 723 children aged 4-5-years from the INfancia y Medio Ambiente (INMA) cohort in Spain. We calculated three predefined PVG dietary patterns, namely general (gPVG), healthful (hPVG), and unhealthful (uPVG), using dietary information collected through a validated Food Frequency Questionnaire. Urinary concentrations of various essential and heavy metals (Co, Cu, Zn, Se, Mo, Pb, and Cd) were measured using mass spectrometry. Additionally, urinary arsenic speciation, including arsenobetaine (AsB), dimethylarsinic acid (DMA), monomethylarsonic acid (MMA), and inorganic arsenic (iAs), was measured. The sum of urinary MMA and iAs was used to assess iAs exposure. We estimated primary (PMI) and secondary iAs methylation (SMI) indices. To explore the association between PVG dietary patterns in quintiles and metal exposure, we utilized multiple-adjusted linear regression models and the quantile g-computation approach. Compared with the lowest quintile, participants in the highest quintile of gPVG showed a 22.7% lower urinary Co (95% confidence interval (CI): -38.7; -1.98) and a 12.6% lower Se (95%CI: -22.9; -1.00) concentrations. Second quintile of adherence to hPVG was associated with a 51.7% lower urinary iAs + MMA concentrations (95%CI: -74.3; -8.61). Second quintile of adherence to an uPVG was associated with a 13.6% lower Se levels (95%CI: -22.9; -2.95) while the third quintile to this pattern was associated with 17.5% lower Mo concentrations (95%CI: -29.5; -2.95). The fourth quintile of adherence to gPVG was associated with a 68.5% higher PMI and a 53.7% lower SMI. Our study showed that adherence to a gPVG dietary pattern in childhood may modestly reduce the intakes of some essential metals such as Co and Se. Further investigations are warranted to explore any potential health implications.
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Affiliation(s)
- Alejandro Oncina-Cánovas
- Instituto de Investigación Sanitaria y Biomédica de Alicante, Universidad Miguel Hernández (ISABIAL-UMH), 03010, Alicante, Spain; Unidad de Epidemiología de la Nutrición, Departamento de Salud Pública, Historia de la Ciencia y Ginecología, Universidad Miguel Hernández (UMH), 03550, Alicante, Spain; CIBER Epidemiología y Salud Pública (CIBERESP), Instituto de Salud Carlos III, 28034, Madrid, Spain.
| | - Jesús Vioque
- Instituto de Investigación Sanitaria y Biomédica de Alicante, Universidad Miguel Hernández (ISABIAL-UMH), 03010, Alicante, Spain; Unidad de Epidemiología de la Nutrición, Departamento de Salud Pública, Historia de la Ciencia y Ginecología, Universidad Miguel Hernández (UMH), 03550, Alicante, Spain; CIBER Epidemiología y Salud Pública (CIBERESP), Instituto de Salud Carlos III, 28034, Madrid, Spain
| | - Gabriel Riutort-Mayol
- Foundation for the Promotion of Health and Biomedical Research in the Valencian Region, FISABIO-Public Health, Valencia, Spain
| | - Raquel Soler-Blasco
- CIBER Epidemiología y Salud Pública (CIBERESP), Instituto de Salud Carlos III, 28034, Madrid, Spain; Foundation for the Promotion of Health and Biomedical Research in the Valencian Region, FISABIO-Public Health, Valencia, Spain; Department of Nursing, Universitat de València, Valencia, Spain
| | - Amaia Irizar
- Health Research Institute, Biodonostia, Donostia-San Sebastian, Spain
| | - Ziortza Barroeta
- Health Research Institute, Biodonostia, Donostia-San Sebastian, Spain
| | - Ana Fernández-Somoano
- CIBER Epidemiología y Salud Pública (CIBERESP), Instituto de Salud Carlos III, 28034, Madrid, Spain; University Institute of Oncology of the Principality of Asturias (IUOPA), Department of Medicine, University of Oviedo, Julián Clavería Street s/n, 33006, Oviedo, Asturias, Spain; Institute of Health Research of the Principality of Asturias (ISPA), Roma Avenue s/n, 33001, Oviedo, Spain
| | - Adonina Tardón
- CIBER Epidemiología y Salud Pública (CIBERESP), Instituto de Salud Carlos III, 28034, Madrid, Spain; University Institute of Oncology of the Principality of Asturias (IUOPA), Department of Medicine, University of Oviedo, Julián Clavería Street s/n, 33006, Oviedo, Asturias, Spain; Institute of Health Research of the Principality of Asturias (ISPA), Roma Avenue s/n, 33001, Oviedo, Spain
| | - Martine Vrijheid
- CIBER Epidemiología y Salud Pública (CIBERESP), Instituto de Salud Carlos III, 28034, Madrid, Spain; ISGlobal, Barcelona, Spain; Universitat Pompeu Fabra, Barcelona, Spain
| | - Mònica Guxens
- CIBER Epidemiología y Salud Pública (CIBERESP), Instituto de Salud Carlos III, 28034, Madrid, Spain; ISGlobal, Barcelona, Spain; Universitat Pompeu Fabra, Barcelona, Spain; Department of Child and Adolescent Psychiatry/Psychology, Erasmus MC, University Medical Centre, Rotterdam, the Netherlands
| | - Manus Carey
- Biological Sciences, Institute for Global Food Security, Queen's University Belfast, 19 Chlorine Gardens, Belfast, BT9 5DL, Northern Ireland, UK
| | - Caroline Meharg
- Biological Sciences, Institute for Global Food Security, Queen's University Belfast, 19 Chlorine Gardens, Belfast, BT9 5DL, Northern Ireland, UK
| | - Kathryn Ralphs
- Biological Sciences, Institute for Global Food Security, Queen's University Belfast, 19 Chlorine Gardens, Belfast, BT9 5DL, Northern Ireland, UK
| | - Coalain McCreanor
- Biological Sciences, Institute for Global Food Security, Queen's University Belfast, 19 Chlorine Gardens, Belfast, BT9 5DL, Northern Ireland, UK
| | - Andrew Meharg
- Biological Sciences, Institute for Global Food Security, Queen's University Belfast, 19 Chlorine Gardens, Belfast, BT9 5DL, Northern Ireland, UK
| | - Antonio J Signes-Pastor
- Instituto de Investigación Sanitaria y Biomédica de Alicante, Universidad Miguel Hernández (ISABIAL-UMH), 03010, Alicante, Spain; Unidad de Epidemiología de la Nutrición, Departamento de Salud Pública, Historia de la Ciencia y Ginecología, Universidad Miguel Hernández (UMH), 03550, Alicante, Spain; CIBER Epidemiología y Salud Pública (CIBERESP), Instituto de Salud Carlos III, 28034, Madrid, Spain.
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Younas M, Bacha AUR, Khan K, Nabi I, Ullah Z, Humayun M, Hou J. Application of manganese oxide-based materials for arsenic removal: A review. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 918:170269. [PMID: 38266733 DOI: 10.1016/j.scitotenv.2024.170269] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Revised: 01/14/2024] [Accepted: 01/16/2024] [Indexed: 01/26/2024]
Abstract
In the context of growing arsenic (As) contamination in the world, there is an urgent need for an effective treatment approach to remove As from the environment. Industrial wastewater is one of the primary sources of As contamination, which poses significant risks to both microorganisms and human health, as the presence of As can disrupt the vital processes and synthesis of crucial macromolecules in living organisms. The global apprehension regarding As presence in aquatic environments persists as a key environmental issue. This review summarizes the recent advances and progress in the design, strategy, and synthesis method of various manganese-based adsorbent materials for As removal. Occurrence, removal, oxidation mechanism of As(III), As adsorption on manganese oxide (MnOx)-based materials, and influence of co-existing solutes are also discussed. Furthermore, the existing knowledge gaps of MnOx-based adsorbent materials and future research directions are proposed. This review provides a reference for the application of MnOx-based adsorbent materials to As removal.
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Affiliation(s)
- Muhammad Younas
- State Environmental Protection Key Laboratory of Soil Health and Green Remediation, College of Resources and Environment, Huazhong Agricultural University, Wuhan 430070, China; Hubei Key Laboratory of Soil Environmental and Pollution Remediation, College of Resources and Environment, Huazhong Agricultural University, Wuhan 430070, China
| | - Aziz Ur Rahim Bacha
- State Key Laboratory of Urban Water Resource and Environment, Shenzhen Key Laboratory of Organic Pollution Prevention and Control, School of Civil and Environmental Engineering, Harbin Institute of Technology Shenzhen, Shenzhen 518055, China
| | - Kaleem Khan
- Institute of Environmental and Occupational Health Sciences, School of Medicine, National Yang Ming Chiao Tung University, Taipei 112, Taiwan China
| | - Iqra Nabi
- State Key Laboratory of Urban Water Resource and Environment, Shenzhen Key Laboratory of Organic Pollution Prevention and Control, School of Civil and Environmental Engineering, Harbin Institute of Technology Shenzhen, Shenzhen 518055, China
| | - Zahid Ullah
- State Key Laboratory of Biogeology and Environmental Geology, School of Environmental Studies, China University of Geosciences, Wuhan 430074, China
| | - Muhammad Humayun
- Wuhan National Laboratory for Optoelectronics, School of Optical and Electronic Information, Huazhong University of Science and Technology Wuhan, 430074, China
| | - Jingtao Hou
- State Environmental Protection Key Laboratory of Soil Health and Green Remediation, College of Resources and Environment, Huazhong Agricultural University, Wuhan 430070, China; Hubei Key Laboratory of Soil Environmental and Pollution Remediation, College of Resources and Environment, Huazhong Agricultural University, Wuhan 430070, China..
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11
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Wisessaowapak C, Niyomchan A, Visitnonthachai D, Leelaprachakul N, Watcharasit P, Satayavivad J. Arsenic-induced IGF-1 signaling impairment and neurite shortening: The protective roles of IGF-1 through the PI3K/Akt axis. ENVIRONMENTAL TOXICOLOGY 2024; 39:1119-1128. [PMID: 37853848 DOI: 10.1002/tox.23995] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2022] [Revised: 08/12/2023] [Accepted: 10/07/2023] [Indexed: 10/20/2023]
Abstract
We recently reported that arsenic caused insulin resistance in differentiated human neuroblastoma SH-SY5Y cells. Herein, we further investigated the effects of sodium arsenite on IGF-1 signaling, which shares downstream signaling with insulin. A time-course experiment revealed that sodium arsenite began to decrease IGF-1-stimulated Akt phosphorylation on Day 3 after treatment, indicating that prolonged sodium arsenite treatment disrupted the neuronal IGF-1 response. Additionally, sodium arsenite decreased IGF-1-stimulated tyrosine phosphorylation of the IGF-1 receptor β (IGF-1Rβ) and its downstream target, insulin receptor substrate 1 (IRS1). These results suggested that sodium arsenite impaired the intrinsic tyrosine kinase activity of IGF-1Rβ, ultimately resulting in a reduction in tyrosine-phosphorylated IRS1. Sodium arsenite also reduced IGF-1 stimulated tyrosine phosphorylation of insulin receptor β (IRβ), indicating the potential inhibition of IGF-1R/IR crosstalk by sodium arsenite. Interestingly, sodium arsenite also induced neurite shortening at the same concentrations that caused IGF-1 signaling impairment. A 24-h IGF-1 treatment partially rescued neurite shortening caused by sodium arsenite. Moreover, the reduction in Akt phosphorylation by sodium arsenite was attenuated by IGF-1. Inhibition of PI3K/Akt by LY294002 diminished the protective effects of IGF-1 against sodium arsenite-induced neurite retraction. Together, our findings suggested that sodium arsenite-impaired IGF-1 signaling, leading to neurite shortening through IGF-1/PI3K/Akt.
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Affiliation(s)
- Churaibhon Wisessaowapak
- Laboratory of Pharmacology, Chulabhorn Research Institute, Bangkok, Thailand
- Center of Excellence on Environmental Health and Toxicology (EHT), OPS, MHESI, Bangkok, Thailand
| | - Apichaya Niyomchan
- Department of Anatomy, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | | | - Naphada Leelaprachakul
- Laboratory of Pharmacology, Chulabhorn Research Institute, Bangkok, Thailand
- Environmental Toxicology Program, Chulabhorn Graduate Institute, Bangkok, Thailand
| | - Piyajit Watcharasit
- Laboratory of Pharmacology, Chulabhorn Research Institute, Bangkok, Thailand
- Center of Excellence on Environmental Health and Toxicology (EHT), OPS, MHESI, Bangkok, Thailand
- Environmental Toxicology Program, Chulabhorn Graduate Institute, Bangkok, Thailand
| | - Jutamaad Satayavivad
- Laboratory of Pharmacology, Chulabhorn Research Institute, Bangkok, Thailand
- Center of Excellence on Environmental Health and Toxicology (EHT), OPS, MHESI, Bangkok, Thailand
- Environmental Toxicology Program, Chulabhorn Graduate Institute, Bangkok, Thailand
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12
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Sanyal T, Das A, Bhattacharjee S, Gump BB, Bendinskas K, Bhattacharjee P. Targeting the 'DNA methylation mark': Analysis of early epigenetic-alterations in children chronically exposed to arsenic. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 912:169049. [PMID: 38052388 DOI: 10.1016/j.scitotenv.2023.169049] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Revised: 11/28/2023] [Accepted: 11/30/2023] [Indexed: 12/07/2023]
Abstract
Chronic exposure to arsenic causes adverse health effects in children. Aberrant epigenetic modifications including altered DNA methylation pattern are one of the major steps towards malignant transformation of cells. Our group has previously identified significant alteration in DNA methylation mark in arsenic exposed adults, affecting major biological pathways. Till date, no information is available exploring the altered DNA methylation mark in telomere regulation and altered mitochondrial functionality in association with DNA damage in arsenic-exposed children. Our study aims in identifying signature epigenetic pattern associated with telomere lengthening, mitochondrial functionality and DNA damage repair in children with special emphasis on DNA methylation. Biological samples (blood and urine) and drinking water were collected from the children aged between 5 and 16 years of arsenic exposed areas (N = 52) of Murshidabad district and unexposed areas (N = 50) of East Midnapur districts, West Bengal, India. Methylation-specific PCR was performed to analyse subtelomeric methylation status and promoter methylation status of target genes. Results revealed altered DNA methylation profile in the exposed children compared to unexposed. Promoter hypermethylation was observed in MLH1 and MSH2 (p < 0.05 and p < 0.001) indicating inefficiency in DNA damage repair. Hypomethylation in mitochondrial D-loop (p < 0.05) and TFAM promoter region (p < 0.05) along with increased mitochondrial DNA copy number among exposed children was also observed. Significant increase in telomere length and region specific subtelomeric hypermethylation (XpYp, p < 0.05) was found. Analysis of S-Adenosyl Methionine (SAM) and 8-oxoDG level revealed significant depletion of SAM (p < 0.001) and elevated oxidative DNA damage (p < 0.001) respectively in arsenic toxicity. Our study identified key methylation patterns in arsenic-exposed children which may act as an early predictive biomarker in the near future. Further in-depth studies involving large sample size and transcriptomic analysis are required for understanding the mechanistic details.
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Affiliation(s)
- Tamalika Sanyal
- Department of Zoology, University of Calcutta, Kolkata 700019, India; Department of Environmental Science, University of Calcutta, Kolkata 700019, India
| | - Ankita Das
- Department of Zoology, University of Calcutta, Kolkata 700019, India; Department of Environmental Science, University of Calcutta, Kolkata 700019, India
| | | | - Brooks B Gump
- Department of Chemistry, State University of New York College at Oswego, Oswego, NY 13126, USA
| | - Kestutis Bendinskas
- Falk College of Sport and Human Dynamics, Department of Public Health, Syracuse University, Syracuse, NY 13244, USA
| | - Pritha Bhattacharjee
- Department of Environmental Science, University of Calcutta, Kolkata 700019, India.
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Mahmoodi A, Farinas ET. Applications of Bacillus subtilis Protein Display for Medicine, Catalysis, Environmental Remediation, and Protein Engineering. Microorganisms 2024; 12:97. [PMID: 38257924 PMCID: PMC10821481 DOI: 10.3390/microorganisms12010097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Revised: 12/29/2023] [Accepted: 12/30/2023] [Indexed: 01/24/2024] Open
Abstract
Bacillus subtilis spores offer several advantages that make them attractive for protein display. For example, protein folding issues associated with unfolded polypeptide chains crossing membranes are circumvented. In addition, they can withstand physical and chemical extremes such as heat, desiccation, radiation, ultraviolet light, and oxidizing agents. As a result, the sequence of the displayed protein can be easily obtained even under harsh screening conditions. Next, immobilized proteins have many economic and technological advantages. They can be easily separated from the reaction and the protein stability is increased in harsh environments. In traditional immobilization methods, proteins are expressed and purified and then they are attached to a matrix. In contrast, immobilization occurs naturally during the sporulation process. They can be easily separated from the reaction and the protein stability is increased in harsh environments. Spores are also amenable to high-throughput screening for protein engineering and optimization. Furthermore, they can be used in a wide array of biotechnological and industrial applications such as vaccines, bioabsorbants to remove toxic chemicals, whole-cell catalysts, bioremediation, and biosensors. Lastly, spores are easily produced in large quantities, have a good safety record, and can be used as additives in foods and drugs.
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Li S, Zhang J, Ma M, Zhang M, Li L, Chen W, Li S. NaAsO 2 regulates TLR4/MyD88/NF-κB signaling pathway through DNMT1/SOCS1 to cause apoptosis and inflammation in hepatic BRL-3A cells. Biol Trace Elem Res 2024; 202:258-267. [PMID: 36988786 DOI: 10.1007/s12011-023-03648-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Accepted: 03/22/2023] [Indexed: 03/30/2023]
Abstract
The exact molecular mechanism of arsenic-induced liver injury has not been fully elucidated. The aim of the study was to investigate the potential mechanism of NaAsO2-induced cytotoxicity in BRL-3A cells and to provide a basis for the mechanism of arsenic poisoning. BRL-3A cells were treated with different doses of NaAsO2, DNMT1 inhibitor (DC_517), TLR4 inhibitor (TAK-242), and transfection of SOCS1 plasmid. Cell activity, apoptosis, inflammation and protein expression of DNMT1, SOCS1, TLR4, MyD88, and NF-κB were detected by CCK8 assay, Annexin V-FITC and Western blot, respectively. With increasing NaAsO2 doses, BAX and caspase-3 expression increased, Bcl-2 expression decreased, pro-inflammatory factors TNF-α, IL-1β, and IL-6 increased, and cell activity decreased causing increased apoptosis. When BRL-3A was intervened with 10, and 20 μmol/L NaAsO2, DNMT1 expression was elevated, SOCS1 expression was decreased, and TLR4, MyD88, p-IκBα/IκBα, and p-p65/p65 expression were elevated. After the combination of NaAsO2 and DC_517, compared to the NaAsO2 group, apoptosis and inflammation were attenuated, SOCS1 expression was elevated and TLR4, MyD88, p-IκBα/IκBα and p-p65/p65 expression was decreased. Apoptosis and inflammation were attenuated after co-treatment of SOCS1 high expression with NaAsO2 compared to the NaAsO2 group. In addition, TLR4, MyD88, p-IκBα/IκBα and p-p65/p65 expression was reduced. When NaAsO2 and TAK-242 were combined, apoptosis and inflammation were attenuated. Besides MyD88, p-IκBα/IκBα and p-p65/p65 expression was reduced compared to the NaAsO2 group. We found that NaAsO2 induce apoptosis and inflammation in BLR-3A cells, which may be related to inhibit SOCS1 through regulation of DNMT1 and thus activating the TLR4/MyD88/NF-κB signaling pathway.
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Affiliation(s)
- Sheng Li
- Department of Public Health, School of Medicine, Shihezi University, Shihezi, Xinjiang, 832000, China
| | - Jingyi Zhang
- Department of Public Health, School of Medicine, Shihezi University, Shihezi, Xinjiang, 832000, China
| | - Mingxiao Ma
- Department of Public Health, School of Medicine, Shihezi University, Shihezi, Xinjiang, 832000, China
| | - Mengyao Zhang
- Department of Public Health, School of Medicine, Shihezi University, Shihezi, Xinjiang, 832000, China
| | - Linzhi Li
- Department of Public Health, School of Medicine, Shihezi University, Shihezi, Xinjiang, 832000, China
| | - Weixin Chen
- Department of Public Health, School of Medicine, Shihezi University, Shihezi, Xinjiang, 832000, China
| | - Shugang Li
- School of Public Health, Capital Medical University, No. 10 Xitoutiao, Youanmenwai, Beijing, China.
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Zhang R, Tu L, Yang Y, Sun J, Liang T, Li Y, Chen R, Chen B, Luan T. Altered generation pattern of reactive oxygen species triggering DNA and plasma membrane damages to human liver cells treated with arsenite. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 900:165821. [PMID: 37506919 DOI: 10.1016/j.scitotenv.2023.165821] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Revised: 07/11/2023] [Accepted: 07/24/2023] [Indexed: 07/30/2023]
Abstract
Human exposure to arsenic via drinking water is one of globally concerned health issues. Oxidative stress is regarded as the denominator of arsenic-inducing toxicities. Therefore, to identify intracellular sources of reactive oxygen species (ROS) could be essential for addressing the detrimental effects of arsenite (iAsIII). In this study, the contributions of different pathways to ROS formation in iAsIII-treated human normal liver (L-02) cells were quantitatively assessed, and then concomitant oxidative impairs were evaluated using metabolomics and lipidomics approaches. Following iAsIII treatment, NADPH oxidase (NOX) activity and expression levels of p47phox and p67phox were upregulated, and NOX-derived ROS contributed to almost 60.0 % of the total ROS. Moreover, iAsIII also induced mitochondrial superoxide anion and impaired mitochondrial respiratory function of L-02 cells with a decreasing ATP production. The inhibition of NOX activity significantly rescued mitochondrial membrane potential in iAsIII-treated L-02 cells. Purine and glycerophospholipids metabolisms in L-02 cells were disrupted by iAsIII, which might be used to represent DNA and plasma membrane damages, respectively. Our study supported that NOX could be the primary pathway of ROS overproduction and revealed the potential mechanisms of iAsIII toxicity related to oxidative stress.
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Affiliation(s)
- Ruijia Zhang
- State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, China
| | - Lanyin Tu
- State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, China
| | - Yuanzhu Yang
- State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, China
| | - Jin Sun
- Guangdong Provincial Key Laboratory of Marine Resources and Coastal Engineering, School of Marine Sciences, Sun Yat-sen University, Zhuhai 519082, China
| | - Tong Liang
- Intensive Care Unit, Guangzhou Eighth People's Hospital, Guangzhou 510440, China
| | - Yizheng Li
- Guangdong Provincial Key Laboratory of Marine Resources and Coastal Engineering, School of Marine Sciences, Sun Yat-sen University, Zhuhai 519082, China
| | - Ruohong Chen
- State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, China
| | - Baowei Chen
- Guangdong Provincial Key Laboratory of Marine Resources and Coastal Engineering, School of Marine Sciences, Sun Yat-sen University, Zhuhai 519082, China.
| | - Tiangang Luan
- State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, China; Institute of Environmental and Ecological Engineering, Guangdong University of Technology, Guangzhou 510006, China.
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Valenzuela-García LI, Alarcón-Herrera MT, Ayala-García VM, Barraza-Salas M, Salas-Pacheco JM, Díaz-Valles JF, Pedraza-Reyes M. Design of a Whole-Cell Biosensor Based on Bacillus subtilis Spores and the Green Fluorescent Protein To Monitor Arsenic. Microbiol Spectr 2023; 11:e0043223. [PMID: 37284752 PMCID: PMC10433799 DOI: 10.1128/spectrum.00432-23] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Accepted: 05/22/2023] [Indexed: 06/08/2023] Open
Abstract
A green fluorescent protein (GFP)-based whole-cell biosensor (WCB-GFP) for monitoring arsenic (As) was developed in Bacillus subtilis. To this end, we designed a reporter gene fusion carrying the gfpmut3a gene under the control of the promoter/operator region of the arsenic operon (Pars::gfpmut3a) in the extrachromosomal plasmid pAD123. This construct was transformed into B. subtilis 168, and the resultant strain was used as a whole-cell biosensor (BsWCB-GFP) for the detection of As. The BsWCB-GFP was specifically activated by inorganic As(III) and As(V), but not by dimethylarsinic acid [DMA(V)], and exhibited high tolerance to the noxious effects of arsenic. Accordingly, after 12 h exposure, B. subtilis cells carrying the Pars::gfpmut3a fusion exhibited 50 and 90% lethal doses (LD50 and LD90) to As(III) of 0.89 mM and As 1.71 mM, respectively. Notably, dormant spores from the BsWCB-GFP were able to report the presence of As(III) in a concentration range from 0.1 to 1,000 μM 4 h after the onset of germination. In summary, the specificity and high sensitivity for As, as well as its ability to proliferate under concentrations of the metal that are considered toxic in water and soil, makes the B. subtilis biosensor developed here a potentially important tool for monitoring environmental samples contaminated with this pollutant. IMPORTANCE Arsenic (As) contamination of groundwater is associated with serious worldwide health risks. Detection of this pollutant at concentrations that are established as permissible for water consumption by WHO is a matter of significant interest. Here, we report the generation of a whole-cell biosensor for As detection in the Gram-positive spore former B. subtilis. This biosensor reports the presence of inorganic As, activating the expression of the green fluorescent protein (GFP) under the control of the promoter/operator of the ars operon. The biosensor can proliferate under concentrations of As(III) that are considered toxic in water and soil and detect this ion at concentrations as low as 0.1 μM. Of note, spores of the Pars-GFP biosensor exhibited the ability to detect As(III) following germination and outgrowth. Therefore, this novel tool has the potential to be directly applied to monitor As contamination in environmental samples.
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Affiliation(s)
- Luz I. Valenzuela-García
- Department of Sustainable Engineering, Advanced Materials Research Center (CIMAV), Arroyo Seco, Durango, Mexico
| | | | - Víctor M. Ayala-García
- Facultad de Ciencias Químicas, Universidad Juárez del Estado de Durango, Durango, Durango, Mexico
| | - Marcelo Barraza-Salas
- Facultad de Ciencias Químicas, Universidad Juárez del Estado de Durango, Durango, Durango, Mexico
| | - José Manuel Salas-Pacheco
- Instituto de Investigación Científica, Universidad Juárez del Estado de Durango, Durango, Durango, Mexico
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Xu X, Yang J, Hao G, Tan M, Gao L, Yang ZQ. Versatile dodecyl trimethyl ammonium bromide modified γ-FeOOH for simultaneous removal and determination of As(Ⅴ). Anal Chim Acta 2023; 1264:341310. [PMID: 37230726 DOI: 10.1016/j.aca.2023.341310] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Revised: 04/17/2023] [Accepted: 04/30/2023] [Indexed: 05/27/2023]
Abstract
Inorganic arsenic pollution in water spreads all over the world, tremendously threatening environmental safety and human health. Herein, versatile dodecyl trimethyl ammonium bromide modified γ-FeOOH (DTAB-γ-FeOOH) was prepared for sportive removal and visual determination of As(Ⅴ) in water. DTAB-γ-FeOOH displays a nanosheet-like structure with a high specific surface area calculated as 166.88 m2 g-1. Additionally, DTAB-γ-FeOOH shows peroxidase-mimicking feature, which can catalyze colorless TMB to generate blue oxidized TMB (TMBox) in presence of H2O2. Removal experiments show that DTAB-γ-FeOOH exhibits good As(Ⅴ) removal efficiency because modification of DTAB makes γ-FeOOH carry abundant positive charges, improving affinity between DTAB-γ-FeOOH and As(Ⅴ). It is found that theoretical maximum adsorption capacity is up to 126.91 mg g-1. Moreover, DTAB-γ-FeOOH can resist interference of most of co-existing ions. After that, As(Ⅴ) was detected based on peroxidase-like DTAB-γ-FeOOH. As(Ⅴ) can be adsorbed onto DTAB-γ-FeOOH surface, markedly inhibiting its peroxidase-like activity. Based on it, As(Ⅴ) ranging from 1.67 to 3333.33 μg L-1 can be well detected, with a low LOD (0.84 μg L-1). The successful sorptive removal and visual determination of As(Ⅴ) from real environmental water indicated that DTAB-γ-FeOOH has great potential in the treatment of As(Ⅴ)-containing environment water.
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Affiliation(s)
- Xuechao Xu
- School of Food Science and Engineering, Yangzhou University, Yangzhou, 225127, China; Key Laboratory of Healthy Freshwater Aquaculture, Ministry of Agriculture and Rural Affairs, Key Laboratory of Fish Health and Nutrition of Zhejiang Province, Zhejiang Institute of Freshwater Fisheries, Huzhou, 313001, Zhejiang, China.
| | - Juanli Yang
- School of Food Science and Engineering, Yangzhou University, Yangzhou, 225127, China
| | - Guijie Hao
- Key Laboratory of Healthy Freshwater Aquaculture, Ministry of Agriculture and Rural Affairs, Key Laboratory of Fish Health and Nutrition of Zhejiang Province, Zhejiang Institute of Freshwater Fisheries, Huzhou, 313001, Zhejiang, China
| | - Mengyuan Tan
- School of Food Science and Engineering, Yangzhou University, Yangzhou, 225127, China
| | - Lu Gao
- School of Food Science and Engineering, Yangzhou University, Yangzhou, 225127, China
| | - Zhen-Quan Yang
- School of Food Science and Engineering, Yangzhou University, Yangzhou, 225127, China.
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18
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Roh T, Knappett PSK, Han D, Ludewig G, Kelly KM, Wang K, Weyer PJ. Characterization of Arsenic and Atrazine Contaminations in Drinking Water in Iowa: A Public Health Concern. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2023; 20:5397. [PMID: 37048011 PMCID: PMC10094102 DOI: 10.3390/ijerph20075397] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Revised: 03/29/2023] [Accepted: 04/03/2023] [Indexed: 06/19/2023]
Abstract
Arsenic and atrazine are two water contaminants of high public health concern in Iowa. The occurrence of arsenic and atrazine in drinking water from Iowa's private wells and public water systems was investigated over several decades. In this study, the percentages of detection and violation of regulations were compared over region, season, and water source, and factors affecting the detection and concentration of arsenic and atrazine were analyzed using a mixed-effects model. Atrazine contamination in drinking water was found to vary by region, depending on agricultural usage patterns and hydrogeological features. The annual median atrazine levels of all public water systems were below the drinking water standard of 3 ppb in 2001-2014. Around 40% of public water systems contained arsenic at levels > 1 ppb in 2014, with 13.8% containing arsenic at levels of 5-10 ppb and 2.6% exceeding 10 ppb. This unexpected result highlights the ongoing public health threat posed by arsenic in drinking water in Iowa, emphasizing the need for continued monitoring and mitigation efforts to reduce exposure and associated health risks. Additionally, an atrazine metabolite, desethylatrazine, should be monitored to obtain a complete account of atrazine exposure and possible health effects.
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Affiliation(s)
- Taehyun Roh
- Department of Epidemiology and Biostatistics, Texas A&M University, College Station, TX 77843, USA
| | - Peter S. K. Knappett
- Department of Geology and Geophysics, Texas A&M University, College Station, TX 77843, USA
| | - Daikwon Han
- Department of Epidemiology and Biostatistics, Texas A&M University, College Station, TX 77843, USA
| | - Gabriele Ludewig
- Interdisciplinary Graduate Program in Human Toxicology, University of Iowa, Iowa City, IA 52242, USA
- Department of Occupational and Environmental Health, University of Iowa, Iowa City, IA 52242, USA
| | - Kevin M. Kelly
- Department of Occupational and Environmental Health, University of Iowa, Iowa City, IA 52242, USA
| | - Kai Wang
- Department of Biostatistics, University of Iowa, Iowa City, IA 52242, USA
| | - Peter J. Weyer
- Center for Health Effects of Environmental Contamination, University of Iowa, Iowa City, IA 52242, USA
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Sun M, Cheng H, Yu T, Tan J, Li M, Chen Q, Gu Y, Jiang C, Li S, He Y, Wen W. Involvement of a AS3MT/c-Fos/p53 signaling axis in arsenic-induced tumor in human lung cells. ENVIRONMENTAL TOXICOLOGY 2023; 38:615-627. [PMID: 36399430 DOI: 10.1002/tox.23708] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Revised: 10/29/2022] [Accepted: 11/05/2022] [Indexed: 06/16/2023]
Abstract
Arsenite methyltransferase (AS3MT) is an enzyme that catalyzes the dimethylation of arsenite (+3 oxidation state). At present, the studies on arsenic carcinogenicity mainly focus on studying the polymorphisms of AS3MT and measuring their catalytic activities. We recently showed that AS3MT was overexpressed in lung cancer patients who had not been exposed to arsenic. However, little is known about the molecular mechanisms of AS3MT in arsenite-induced tumorigenesis. In this study, we showed that AS3MT protein expression was higher in the arsenic-exposed population compared to the unexposed population. AS3MT was also overexpressed in human lung adenocarcinoma (A549) and human bronchial epithelial (16HBE) cells exposed to arsenic (A549: 20-60 μmol/L; 16HBE: 2-6 μmol/L) for 48 h. Furthermore, we investigated the effects of AS3MT on cell proliferation and apoptosis using siRNA. The downregulation of AS3MT inhibited the proliferation and promoted the apoptosis of cells. Mechanistically, AS3MT was found to specifically bind to c-Fos, thereby inhibiting the binding of c-Fos to c-Jun. Additionally, the siRNA-mediated knockdown of AS3MT enhanced the phosphorylation of Ser392 in p53 by upregulating p38 MAPK expression. This led to the activation of p53 signaling and the upregulated expression of downstream targets, such as p21, Fas, PUMA, and Bax. Together, these studies revealed that the inorganic arsenic-mediated upregulation of AS3MT expression directly affected the proliferation and apoptosis of cells, leading to arsenic-induced toxicity or carcinogenicity.
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Affiliation(s)
- Mingjun Sun
- Occupational Health and Launch Health Institute, Yunnan Center for Disease Control and Prevention, Kunming, China
- School of Public Health, Dali University, Dali, China
| | - Huirong Cheng
- Occupational Health and Launch Health Institute, Yunnan Center for Disease Control and Prevention, Kunming, China
| | - Tianle Yu
- Cardiovascular medicine, Weihai Central Hospital, Weihai, China
| | - Jingwen Tan
- School of Public Health, Kunming Medical University, Kunming, China
| | - Ming Li
- Elderly Health Management Center, Haida Hospital, Weihai, China
| | - Qian Chen
- Occupational Health and Launch Health Institute, Yunnan Center for Disease Control and Prevention, Kunming, China
- School of Public Health, Dali University, Dali, China
| | - Yun Gu
- Occupational Health and Launch Health Institute, Yunnan Center for Disease Control and Prevention, Kunming, China
- School of Public Health, Dali University, Dali, China
| | - Chenglan Jiang
- School of Public Health, Kunming Medical University, Kunming, China
| | - Shuting Li
- School of Public Health, Kunming Medical University, Kunming, China
| | - Yuefeng He
- School of Public Health, Kunming Medical University, Kunming, China
| | - Weihua Wen
- Occupational Health and Launch Health Institute, Yunnan Center for Disease Control and Prevention, Kunming, China
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20
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Hackethal C, Pabel U, Jung C, Schwerdtle T, Lindtner O. Chronic dietary exposure to total arsenic, inorganic arsenic and water-soluble organic arsenic species based on results of the first German total diet study. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 859:160261. [PMID: 36402324 DOI: 10.1016/j.scitotenv.2022.160261] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/25/2022] [Revised: 11/12/2022] [Accepted: 11/14/2022] [Indexed: 06/16/2023]
Abstract
For risk assessment purposes, the dietary exposure to total arsenic and inorganic arsenic was estimated within the first German total diet study (BfR MEAL Study) for the whole population in Germany. Therefore, occurrence data of 356 different foods from the BfR MEAL Study were combined with consumption data from German nutrition surveys. Due to the different toxicological potentials of other water-soluble organic arsenic species present in rice-based foods, fish and seafood, dietary exposure to dimethylarsinic acid, monomethylarsonic acid and arsenobetaine was assessed in consumers in Germany through such foods for the first time. Related to the bodyweight, dietary exposure to total arsenic and inorganic arsenic in infants and young children (0.5-<5 years) were higher than in adolescents/adults (≥14 years). The highest median exposure estimates to inorganic arsenic resulted for the age group of infants from 0.5 to <1 year under modified lower bound conditions and for young children from 1 to <2 years under upper bound conditions (0.17 μg kg-1 bodyweight day-1-0.24 μg kg-1 bodyweight day-1 and 0.26 μg kg-1 bodyweight day-1-0.34 μg kg-1 bodyweight day-1, respectively). 'Grains and grain-based products' (especially rice) were identified as the main contributors for dietary exposure to total arsenic and inorganic arsenic for all age classes. Especially, for infants and young children, high consumption of rice-based foods and fish fingers is driving the dietary exposure to dimethylarsinic acid. The dietary exposure calculations indicate that a further reduction of dietary exposure to inorganic arsenic and further investigations to water-soluble organic arsenic species are necessary.
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Affiliation(s)
- Christin Hackethal
- German Federal Institute for Risk Assessment (BfR), Max-Dohrn-Straße 8-10, 10589 Berlin, Germany; Institute of Nutritional Science (IEW), University of Potsdam, Arthur-Scheunert-Allee 114-116, 14558 Nuthetal, Germany.
| | - Ulrike Pabel
- German Federal Institute for Risk Assessment (BfR), Max-Dohrn-Straße 8-10, 10589 Berlin, Germany.
| | - Christian Jung
- German Federal Institute for Risk Assessment (BfR), Max-Dohrn-Straße 8-10, 10589 Berlin, Germany.
| | - Tanja Schwerdtle
- German Federal Institute for Risk Assessment (BfR), Max-Dohrn-Straße 8-10, 10589 Berlin, Germany; Institute of Nutritional Science (IEW), University of Potsdam, Arthur-Scheunert-Allee 114-116, 14558 Nuthetal, Germany.
| | - Oliver Lindtner
- German Federal Institute for Risk Assessment (BfR), Max-Dohrn-Straße 8-10, 10589 Berlin, Germany.
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21
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García Salcedo JJ, Roh T, Nava Rivera LE, Betancourt Martínez ND, Carranza Rosales P, San Miguel Salazar MF, Rivera Guillén MA, Serrano Gallardo LB, Niño Castañeda MS, Guzmán Delgado NE, Millán Orozco J, Ortega Morales N, Morán Martínez J. Comparative Biomonitoring of Arsenic Exposure in Mothers and Their Neonates in Comarca Lagunera, Mexico. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:16232. [PMID: 36498305 PMCID: PMC9739351 DOI: 10.3390/ijerph192316232] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/16/2022] [Revised: 11/22/2022] [Accepted: 11/29/2022] [Indexed: 06/17/2023]
Abstract
Multiple comorbidities related to arsenic exposure through drinking water continue to be public problems worldwide, principally in chronically exposed populations, such as those in the Comarca Lagunera (CL), Mexico. In addition, this relationship could be exacerbated by an early life exposure through the placenta and later through breast milk. This study conducted a comparative analysis of arsenic levels in multiple biological samples from pregnant women and their neonates in the CL and the comparison region, Saltillo. Total arsenic levels in placenta, breast milk, blood, and urine were measured in pregnant women and their neonates from rural areas of seven municipalities of the CL using atomic absorption spectrophotometry with hydride generation methodology. The average concentrations of tAs in drinking water were 47.7 µg/L and 0.05 µg/L in the exposed and non-exposed areas, respectively. Mean levels of tAs were 7.80 µg/kg, 77.04 µg/g-Cr, and 4.30 µg/L in placenta, blood, urine, and breast milk, respectively, in mothers, and 107.92 µg/g-Cr in neonates in the exposed group, which were significantly higher than those in the non-exposed area. High levels of urinary arsenic in neonates were maintained 4 days after birth, demonstrating an early arsenic exposure route through the placenta and breast milk. In addition, our study suggested that breastfeeding may reduce arsenic exposure in infants in arsenic-contaminated areas. Further studies are necessary to follow up on comorbidities later in life in neonates and to provide interventions in this region.
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Affiliation(s)
- José Javier García Salcedo
- Departamento de Bioquímica y Farmacología, Centro de Investigaciones Biomédicas, Facultad de Medicina, Universidad Autónoma de Coahuila Torreón, Torreón 27000, Mexico
| | - Taehyun Roh
- Department of Epidemiology and Biostatistics, School of Public Health, Texas A&M University, College Station, TX 77843, USA
| | - Lydia Enith Nava Rivera
- Departamento de Biología Celular y Ultraestructura, Centro de Investigaciones Biomédicas, Facultad de Medicina, Universidad Autónoma de Coahuila Torreón, Torreón 27000, Mexico
| | - Nadia Denys Betancourt Martínez
- Departamento de Biología Celular y Ultraestructura, Centro de Investigaciones Biomédicas, Facultad de Medicina, Universidad Autónoma de Coahuila Torreón, Torreón 27000, Mexico
| | - Pilar Carranza Rosales
- Centro de Investigaciones Biomédicas del Noreste, Instituto Mexicano del Seguro Social, Monterrey 64000, Mexico
| | - María Francisco San Miguel Salazar
- Departamento de Bioquímica y Farmacología, Centro de Investigaciones Biomédicas, Facultad de Medicina, Universidad Autónoma de Coahuila Torreón, Torreón 27000, Mexico
| | - Mario Alberto Rivera Guillén
- Departamento de Bioquímica y Farmacología, Centro de Investigaciones Biomédicas, Facultad de Medicina, Universidad Autónoma de Coahuila Torreón, Torreón 27000, Mexico
| | - Luis Benjamín Serrano Gallardo
- Departamento de Bioquímica y Farmacología, Centro de Investigaciones Biomédicas, Facultad de Medicina, Universidad Autónoma de Coahuila Torreón, Torreón 27000, Mexico
| | - María Soñadora Niño Castañeda
- Departamento de Biología Celular y Ultraestructura, Centro de Investigaciones Biomédicas, Facultad de Medicina, Universidad Autónoma de Coahuila Torreón, Torreón 27000, Mexico
| | - Nacny Elena Guzmán Delgado
- División de Investigaciones en Salud, Unidad Médica de Alta Especialidad, Hospital de Cardiología #34, Instituto Mexicano del Seguro Social, Monterrey 64000, Mexico
| | - Jair Millán Orozco
- Unidad Laguna, Universidad Autónoma Agraria Antonio Narro, Raúl López Sánchez, Torreon 27000, Mexico
| | - Natalia Ortega Morales
- División de Investigaciones en Salud, Unidad Médica de Alta Especialidad, Hospital de Cardiología #34, Instituto Mexicano del Seguro Social, Monterrey 64000, Mexico
| | - Javier Morán Martínez
- Departamento de Biología Celular y Ultraestructura, Centro de Investigaciones Biomédicas, Facultad de Medicina, Universidad Autónoma de Coahuila Torreón, Torreón 27000, Mexico
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22
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Kumari B, Bharti VK. Recent advancements in toxicology, modern technology for detection, and remedial measures for arsenic exposure: review. Biotechnol Genet Eng Rev 2022:1-43. [PMID: 36411979 DOI: 10.1080/02648725.2022.2147664] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2022] [Accepted: 10/15/2022] [Indexed: 11/23/2022]
Abstract
Arsenic toxicity has become a major global health concern for humans and animals due to extensive environmental and occupational exposure to arsenic-contaminated water, air, soil, and plant and animal origin food. It has a wide range of detrimental effects on animals, humans, and the environment. As a result, various experimental and clinical studies were undertaken and are undergoing to understand its source of exposures, pathogenesis, identify key biomarkers, the medical and economic impact on affected populations and ecosystems, and their timely detection and control measures. Despite these extensive studies, no conclusive information for the prevention and control of arsenic toxicity is available, owing to complex epidemiology and pathogenesis, including an imprecise approach and repetitive work. As a result, there is a need for literature that focuses on recent studies on the epidemiology, pathogenesis, detection, and ameliorative measures of arsenic toxicity to assist researchers and policymakers in the practical future planning of research and community control programs. According to the preceding viewpoint, this review article provides an extensive analysis of the recent progress on arsenic exposure to humans through the environment, livestock, and fish, arsenic toxicopathology, nano-biotechnology-based detection, and current remedial measures for the benefit of researchers, academicians, and policymakers in controlling arsenic eco-toxicology and directing future research. Arsenic epidemiology should therefore place the greatest emphasis on the prevalence of different direct and indirect sources in the afflicted areas, followed by control strategies.
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Affiliation(s)
- Bibha Kumari
- Department of Zoology, Magadh Mahila College, Patna University, Patna, India
| | - Vijay K Bharti
- DRDO-Defence Institute of High-Altitude Research (DIHAR), Leh, UT Ladakh, India
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23
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González-Vergara A, Sánchez-González R, Bravo MA, Aguilar LF, Espinoza L, Mellado M. Assessment of chalcone-vanillin as a selective chemosensor of As(III) in aqueous solution. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.133558] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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24
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Giles BH, Mann KK. Arsenic as an immunotoxicant. Toxicol Appl Pharmacol 2022; 454:116248. [PMID: 36122737 DOI: 10.1016/j.taap.2022.116248] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Revised: 09/12/2022] [Accepted: 09/13/2022] [Indexed: 10/31/2022]
Abstract
Arsenic is world-wide contaminant to which millions of people are exposed. The health consequences of arsenic exposure are varied, including cancer, cardiometabolic disease, and respiratory disorders. Arsenic is also toxic to the immune system, which may link many of the pathologies associated with arsenic exposure. The immune system can be classified into two interconnected arms: the innate and the adaptive immune responses. Herein, we discuss the effects of arsenic on key cell types within each of these arms, highlighting both in vitro and in vivo responses. These cells include macrophages, neutrophils, dendritic cells, and both B and T lymphocytes. Furthermore, we will explore data from human populations where altered immune status is implicated in disease and identify several data gaps where research is needed to complete our understanding of the immunotoxic effects of arsenic.
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Affiliation(s)
- Braeden H Giles
- Department of Pharmacology and Therapeutics, McGill University, Montreal, Quebec, Canada
| | - Koren K Mann
- Department of Pharmacology and Therapeutics, McGill University, Montreal, Quebec, Canada; Lady Davis Institute for Medical Research, Jewish General Hospital, Montreal, Quebec, Canada.
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25
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Mangu JCK, Rai N, Mandal A, Olsson PE, Jass J. Lysinibacillus sphaericus mediates stress responses and attenuates arsenic toxicity in Caenorhabditis elegans. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 835:155377. [PMID: 35460794 DOI: 10.1016/j.scitotenv.2022.155377] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2022] [Revised: 03/15/2022] [Accepted: 04/14/2022] [Indexed: 06/14/2023]
Abstract
Exposure to toxic metals alters host response and that leads to disease development. Studies have revealed the effects of metals on microbial physiology, however, the role of metal resistant bacteria on host response to metals is unclear. The hypothesis that xenobiotic interactions between gut microbes and arsenic influence the host physiology and toxicity was assessed in a Caenorhabditis elegans model. The arsenic-resistant Lysinibacillus sphaericus B1CDA was fed to C. elegans to determine the host responses to arsenic in comparison to Escherichia coli OP50 food. L. sphaericus diet extended C. elegans lifespan compared to E. coli diet, with an increased expression of genes involved in lifespan, stress response and immunity (hif-1, hsp-16.2, mtl-2, abf-2, clec-60), as well as reduced fat accumulation. Arsenic-exposed worms fed L. sphaericus also had a longer lifespan than those fed E. coli and had an increased expression of genes involved in cytoprotection, stress resistance (mtl-1, mtl-2) and oxidative stress response (cyp-35A2, isp-1, ctl-2, sod-1), together with a decreased accumulation of reactive oxygen species (ROS). In comparison with E. coli, L. sphaericus B1CDA diet increased C. elegans fitness while detoxifying arsenic induced ROS and extending lifespan.
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Affiliation(s)
| | - Neha Rai
- The Life Science Centre-Biology, School of Science and Technology, Örebro University, Örebro, Sweden
| | - Abul Mandal
- Systems Biology Research Center, School of Bioscience, University of Skövde, Skövde, Sweden
| | - Per-Erik Olsson
- The Life Science Centre-Biology, School of Science and Technology, Örebro University, Örebro, Sweden
| | - Jana Jass
- The Life Science Centre-Biology, School of Science and Technology, Örebro University, Örebro, Sweden.
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26
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Gandhi D, Bhandari S, Mishra S, Tiwari RR, Rajasekaran S. Non-malignant respiratory illness associated with exposure to arsenic compounds in the environment. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2022; 94:103922. [PMID: 35779705 DOI: 10.1016/j.etap.2022.103922] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Revised: 06/22/2022] [Accepted: 06/25/2022] [Indexed: 06/15/2023]
Abstract
Arsenic (As), a toxic metalloid, primarily originates from both natural and anthropogenic activities. Reports suggested that millions of people globally exposed to high levels of naturally occurring As compounds via inhalation and ingestion. There is evidence that As is a well-known lung carcinogen. However, there has been relatively little evidence suggesting its non-malignant lung effects. This review comprehensively summarises current experimental and clinical studies implicating the association of As exposure and the development of several non-malignant lung diseases. Experimental studies provided evidence that As exposure induces redox imbalance, apoptosis, inflammatory response, epithelial-to-mesenchymal transition (EMT), and affected normal lung development through alteration of the components of intracellular signaling cascades. In addition, we also discuss the sources and possible mechanisms of As influx and efflux in the lung. Finally, current experimental studies on treatment strategies using phytochemicals and our perspective on future research with As are also discussed.
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Affiliation(s)
- Deepa Gandhi
- Department of Biochemistry, ICMR-National Institute for Research in Environmental, Health, Bhopal, Madhya Pradesh, India
| | - Sneha Bhandari
- Department of Biochemistry, ICMR-National Institute for Research in Environmental, Health, Bhopal, Madhya Pradesh, India
| | - Sehal Mishra
- Department of Biochemistry, ICMR-National Institute for Research in Environmental, Health, Bhopal, Madhya Pradesh, India
| | - Rajnarayan R Tiwari
- Department of Biochemistry, ICMR-National Institute for Research in Environmental, Health, Bhopal, Madhya Pradesh, India
| | - Subbiah Rajasekaran
- Department of Biochemistry, ICMR-National Institute for Research in Environmental, Health, Bhopal, Madhya Pradesh, India.
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27
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Vinayagam V, Murugan S, Kumaresan R, Narayanan M, Sillanpää M, Vo DVN, Kushwaha OS. Protein nanofibrils as versatile and sustainable adsorbents for an effective removal of heavy metals from wastewater: A review. CHEMOSPHERE 2022; 301:134635. [PMID: 35447212 DOI: 10.1016/j.chemosphere.2022.134635] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/15/2022] [Revised: 03/26/2022] [Accepted: 04/13/2022] [Indexed: 06/14/2023]
Abstract
Water is a valuable natural resource, which plays a crucial role in ecological survival as well as economic progress. However, the water quality has deteriorated in recent years as a result of urbanization, industrialization and human activities due to the uncontrolled release of industrial wastes, which can be extremely carcinogenic and non-degradable, in air, water and soil bodies. Such wastes showed the presence of organic and inorganic pollutants in high dosages. Heavy metals are the most obstinate contaminants, and they can be harmful because of having a variety of detrimental consequences to the ecosystem. The existing water treatment methods in many situations may not be sustainable or effective because of their high energy requirements and ecological impacts. In this review, state-of-the-art water treatment methods for the elimination of heavy metals with the help of protein nanofibrils are covered featuring a discussion on the strategies and possibilities of developing protein nanofibrils for the active elimination of heavy metals using kitchen waste as well as residues from the cattle, agriculture, and dairy industries. Further, the emphasis has been given to their environmental sustainability and economical aspects are also discussed.
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Affiliation(s)
- Vignesh Vinayagam
- Department of Chemical Engineering, Sri Venkateswara College of Engineering, Chennai, Tamil Nadu, 602117, India
| | - Shrima Murugan
- Department of Chemical Engineering, Sri Venkateswara College of Engineering, Chennai, Tamil Nadu, 602117, India
| | - Rishikeswaran Kumaresan
- Department of Chemical Engineering, Sri Venkateswara College of Engineering, Chennai, Tamil Nadu, 602117, India
| | - Meyyappan Narayanan
- Department of Chemical Engineering, Sri Venkateswara College of Engineering, Chennai, Tamil Nadu, 602117, India
| | - Mika Sillanpää
- Department of Chemical Engineering, School of Mining, Metallurgy and Chemical Engineering, University of Johannesburg, P. O. Box 17011, Doornfontein, 2028, South Africa; Department of Biological and Chemical Engineering, Aarhus University, Nørrebrogade 44, 8000, Aarhus C, Denmark; Sustainable Membrane Technology Research Group (SMTRG), Chemical Engineering Department, Persian Gulf University, P.O. Box 75169-13817, Bushehr, Iran; Zhejiang Rongsheng Environmental Protection Paper Co. Ltd, No. 588 East Zhennan Road, Pinghu Economic Development Zone, Zhejiang, 314213, PR China
| | - Dai-Viet N Vo
- Institute of Environmental Sciences, Nguyen Tat Thanh University, Ho Chi Minh City, 755414, Viet Nam.
| | - Omkar Singh Kushwaha
- Department of Chemical Engineering, Indian Institute of Technology, Madras, Chennai, Tamil Nadu, 600036, India.
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Yang Q, Yan R, Mo Y, Xia H, Deng H, Wang X, Li C, Kato K, Zhang H, Jin T, Zhang J, An Y. The Potential Key Role of the NRF2/NQO1 Pathway in the Health Effects of Arsenic Pollution on SCC. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:ijerph19138118. [PMID: 35805773 PMCID: PMC9265438 DOI: 10.3390/ijerph19138118] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/27/2022] [Revised: 06/28/2022] [Accepted: 06/29/2022] [Indexed: 02/05/2023]
Abstract
Arsenic is widely present in nature and is a common environmental poison that seriously damages human health. Chronic exposure to arsenic is a major environmental poisoning factor that promotes cell proliferation and leads to malignant transformation. However, its molecular mechanism remains unclear. In this study, we found that arsenite can promote the transformation of immortalized human keratinocyte cells (HaCaT) from the G0/G1 phase to S phase and demonstrated malignant phenotypes. This phenomenon is accompanied by obviously elevated levels of NRF2, NQO1, Cyclin E, and Cyclin-dependent kinase 2 (CDK2). Silencing the NRF2 expression with small interfering RNA (siRNA) in arsenite-transformed (T-HaCaT) cells was shown to reverse the malignant phenotype. Furthermore, the siRNA silencing of NQO1 significantly decreased the levels of the cyclin E-CDK2 complex, inhibiting the G0/G1 to S phase cell cycle progression and transformation to the T-HaCaT phenotypes. Thus, we hypothesized that the NRF2/NQO1 pathway played a key role in the arsenite-induced malignancy of HaCaT cells. By increasing the expression of Cyclin E-CDK2, the NRF2/NQO1 pathway can affect cell cycle progression and cell proliferation. A new common health effect mechanism of arsenic carcinogenesis has been identified; thus, it would contribute to the development of novel treatments to prevent and treat skin cancer caused by arsenic.
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Affiliation(s)
- Qianlei Yang
- Department of Toxicology, School of Public Health, Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, Medical College of Soochow University, Suzhou 215123, China; (Q.Y.); (R.Y.); (H.X.); (X.W.); (J.Z.)
| | - Rui Yan
- Department of Toxicology, School of Public Health, Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, Medical College of Soochow University, Suzhou 215123, China; (Q.Y.); (R.Y.); (H.X.); (X.W.); (J.Z.)
| | - Yuemei Mo
- Physical Examination Department, Center for Disease Control and Prevention of Suzhou Industrial Park, Suzhou 215100, China;
| | - Haixuan Xia
- Department of Toxicology, School of Public Health, Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, Medical College of Soochow University, Suzhou 215123, China; (Q.Y.); (R.Y.); (H.X.); (X.W.); (J.Z.)
| | - Hanyi Deng
- Shanghai Municipal Center for Disease Control and Prevention, Shanghai 200336, China;
| | - Xiaojuan Wang
- Department of Toxicology, School of Public Health, Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, Medical College of Soochow University, Suzhou 215123, China; (Q.Y.); (R.Y.); (H.X.); (X.W.); (J.Z.)
| | - Chunchun Li
- Changzhou Wujin District Center for Disease Control and Prevention, Changzhou 213164, China;
| | - Koichi Kato
- Laboratory of Environmental Toxicology and Carcinogenesis, School of Pharmacy, Nihon University, Chiba 274-8555, Japan;
| | - Hengdong Zhang
- Department of Occupational Disease Prevention, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing 210028, China;
- Jiangsu Preventive Medicine Association, Nanjing 210009, China
| | - Tingxu Jin
- Department of Toxicology, School of Public Health, Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, Medical College of Soochow University, Suzhou 215123, China; (Q.Y.); (R.Y.); (H.X.); (X.W.); (J.Z.)
- School of Public Health, The Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Guizhou Medical University, Guiyang 550025, China
- Correspondence: (T.J.); (Y.A.)
| | - Jie Zhang
- Department of Toxicology, School of Public Health, Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, Medical College of Soochow University, Suzhou 215123, China; (Q.Y.); (R.Y.); (H.X.); (X.W.); (J.Z.)
| | - Yan An
- Department of Toxicology, School of Public Health, Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, Medical College of Soochow University, Suzhou 215123, China; (Q.Y.); (R.Y.); (H.X.); (X.W.); (J.Z.)
- Correspondence: (T.J.); (Y.A.)
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Huang Y, Hu H, Fu B, Zou C, Liu H, Liu X, Wang L, Luo G, Yao H. Fine particulate-bound arsenic and selenium from coal-fired power plants: Formation, removal and bioaccessibility. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 823:153723. [PMID: 35150677 DOI: 10.1016/j.scitotenv.2022.153723] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Revised: 01/23/2022] [Accepted: 02/03/2022] [Indexed: 06/14/2023]
Abstract
The arsenic (As) and selenium (Se) in fine particulate matter (PM10) have attracted increasing attentions due to their health effects. However, the emission control of fine particulate-bound arsenic and selenium (fine particulate-bound As/Se) from coal-fired power plants still faces various challenges. Understanding the formation and characteristics of fine particulate-bound As/Se is crucial for developing specific control technologies. This study clarifies the formation mechanism, removal characteristics, and inhalation bioaccessibility of fine particulate-bound As/Se from industrial coal-fired power plants through methods including aerosol generation, As/Se speciation determination, and in vitro bioaccessibility testing. The findings demonstrated that PM1 from pulverized coal-fired (PC) boilers was enriched with As/Se in terms of concentration and mass distribution. Instead, As/Se was mainly distributed in PM2.5-10 from circulating fluidized bed (CFB) boilers. Limestone injection in CFB boilers promoted As/Se enrichment in coarse PM. Fine particulate-bound As was mainly formed by chemical adsorption of As vapors by Ca-minerals, while the formation of fine particulate-bound Se was closely related to active Ca-minerals and Fe-minerals. Furthermore, Ca-bound As was easy to remove by electrostatic precipitator (ESP) and the removal of physically adsorbed SeO2(s) was difficult, which was caused by the specific resistivity of different mineral components. Importantly, finer particulate-bound As/Se posed higher inhalation bioaccessibility, following the order of PM1 ≥ PM1-2.5 > PM2.5-10. In particular, Ca-bound Se in fine PM owned high bioaccessibility. Based on these findings, measures were proposed to suppress the formation of fine particulate-bound As/Se in the furnace and/or strengthen its removal in the post-combustion stage.
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Affiliation(s)
- Yongda Huang
- State Key Laboratory of Coal Combustion, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Hongyun Hu
- State Key Laboratory of Coal Combustion, Huazhong University of Science and Technology, Wuhan 430074, China.
| | - Biao Fu
- State Key Laboratory of Coal Combustion, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Chan Zou
- State Key Laboratory of Coal Combustion, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Huimin Liu
- State Key Laboratory of Coal Combustion, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Xiaowei Liu
- State Key Laboratory of Coal Combustion, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Linling Wang
- School of Environmental Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Guangqian Luo
- State Key Laboratory of Coal Combustion, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Hong Yao
- State Key Laboratory of Coal Combustion, Huazhong University of Science and Technology, Wuhan 430074, China
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Wu L, Yang F, Du S, Hu T, Wei S, Wang G, Zeng Q, Luo P. Inorganic arsenic promotes apoptosis of human immortal keratinocytes through the TGF-β1/ERK signaling pathway. ENVIRONMENTAL TOXICOLOGY 2022; 37:1321-1331. [PMID: 35142421 DOI: 10.1002/tox.23486] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/22/2022] [Accepted: 01/29/2022] [Indexed: 06/14/2023]
Abstract
Chronic exposure to high-dose inorganic arsenic through groundwater, air, or food remains a major environmental public health issue worldwide. Apoptosis, a method of cell death, has recently become a hot topic of research in biology and medicine. Previous studies have demonstrated that extracellular signal-regulated kinase (ERK) is related to arsenic-induced apoptosis. However, the reports are contradictory, and the knowledge of the above-mentioned mechanisms and their mutual regulation remains limited. In this study, the associations between the TGF-β1/ERK signaling pathway and arsenic-induced cell apoptosis were confirmed using the HaCaT cell model. The relative expressions of the indicators of the TGF-β1/ERK signaling pathway, apoptosis-related genes (cytochrome C, caspase-3, caspase-9, cleaved caspase-3, cleaved caspase-9, and Bax), the mitochondrial membrane potential, and the total apoptosis rate were significantly increased (P < .05), while the expression of the antiapoptosis gene Bcl-2 was significantly decreased (P < .05) in cells of the group exposed to arsenic. Moreover, the results demonstrated that the ERK inhibitor (PD98059) and TGF-β1 inhibitor (LY364947) could inhibit the activation of the ERK signaling pathway, thereby reducing the mitochondrial membrane potential, the total apoptosis rate, and the expression of pro-apoptosis-related genes in the cells, while the expression of the antiapoptosis gene Bcl-2 was significantly increased (P < .05). By contrast, the recombinant human TGF-β1 could promote apoptosis of the HaCaT cells by increasing the activation of the ERK signaling pathway (P < .05). These results indicate that inorganic arsenic promotes the apoptosis of human immortal keratinocytes through the TGF-β1/ERK signaling pathway.
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Affiliation(s)
- Liping Wu
- The key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, School of Public Health, Guizhou Medical University, Guiyang, China
| | - Fan Yang
- The key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, School of Public Health, Guizhou Medical University, Guiyang, China
| | - Sufei Du
- The key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, School of Public Health, Guizhou Medical University, Guiyang, China
| | - Ting Hu
- The key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, School of Public Health, Guizhou Medical University, Guiyang, China
- Guizhou Provincial Engineering Research Center of Food Nutrition and Health, Guizhou Medical University, Guiyang, China
| | - Shaofeng Wei
- The key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, School of Public Health, Guizhou Medical University, Guiyang, China
- Guizhou Provincial Engineering Research Center of Food Nutrition and Health, Guizhou Medical University, Guiyang, China
| | - Guoze Wang
- The key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, School of Public Health, Guizhou Medical University, Guiyang, China
- Guizhou Provincial Engineering Research Center of Food Nutrition and Health, Guizhou Medical University, Guiyang, China
| | - Qibing Zeng
- The key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, School of Public Health, Guizhou Medical University, Guiyang, China
- Guizhou Provincial Engineering Research Center of Food Nutrition and Health, Guizhou Medical University, Guiyang, China
| | - Peng Luo
- The key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, School of Public Health, Guizhou Medical University, Guiyang, China
- Guizhou Provincial Engineering Research Center of Food Nutrition and Health, Guizhou Medical University, Guiyang, China
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Muzaffar S, Khan J, Srivastava R, Gorbatyuk MS, Athar M. Mechanistic understanding of the toxic effects of arsenic and warfare arsenicals on human health and environment. Cell Biol Toxicol 2022; 39:85-110. [PMID: 35362847 PMCID: PMC10042769 DOI: 10.1007/s10565-022-09710-8] [Citation(s) in RCA: 33] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2021] [Accepted: 03/11/2022] [Indexed: 12/17/2022]
Abstract
Worldwide, more than 200 million people are estimated to be exposed to unsafe levels of arsenic. Chronic exposure to unsafe levels of groundwater arsenic is responsible for multiple human disorders, including dermal, cardiovascular, neurological, pulmonary, renal, and metabolic conditions. Consumption of rice and seafood (where high levels of arsenic are accumulated) is also responsible for human exposure to arsenic. The toxicity of arsenic compounds varies greatly and may depend on their chemical form, solubility, and concentration. Surprisingly, synthetic organoarsenicals are extremely toxic molecules which created interest in their development as chemical warfare agents (CWAs) during World War I (WWI). Among these CWAs, adamsite, Clark I, Clark II, and lewisite are of critical importance, as stockpiles of these agents still exist worldwide. In addition, unused WWII weaponized arsenicals discarded in water bodies or buried in many parts of the world continue to pose a serious threat to the environment and human health. Metabolic inhibition, oxidative stress, genotoxicity, and epigenetic alterations including micro-RNA-dependent regulation are some of the underlying mechanisms of arsenic toxicity. Mechanistic understanding of the toxicity of organoarsenicals is also critical for the development of effective therapeutic interventions. This review provides comprehensive details and a critical assessment of recently published data on various chemical forms of arsenic, their exposure, and implications on human and environmental health.
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Affiliation(s)
- Suhail Muzaffar
- UAB Research Center of Excellence in Arsenicals and Department of Dermatology, University of Alabama at Birmingham, Volker Hall - Room 509 1670 University Blvd. , Birmingham, AL, 35294-0019, USA
| | - Jasim Khan
- UAB Research Center of Excellence in Arsenicals and Department of Dermatology, University of Alabama at Birmingham, Volker Hall - Room 509 1670 University Blvd. , Birmingham, AL, 35294-0019, USA
| | - Ritesh Srivastava
- UAB Research Center of Excellence in Arsenicals and Department of Dermatology, University of Alabama at Birmingham, Volker Hall - Room 509 1670 University Blvd. , Birmingham, AL, 35294-0019, USA
| | - Marina S Gorbatyuk
- Department of Optometry and Vision Science, The University of Alabama at Birmingham, School of Optometry, Birmingham, AL, USA
| | - Mohammad Athar
- UAB Research Center of Excellence in Arsenicals and Department of Dermatology, University of Alabama at Birmingham, Volker Hall - Room 509 1670 University Blvd. , Birmingham, AL, 35294-0019, USA.
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Chakraborty A, Ghosh S, Biswas B, Pramanik S, Nriagu J, Bhowmick S. Epigenetic modifications from arsenic exposure: A comprehensive review. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 810:151218. [PMID: 34717984 DOI: 10.1016/j.scitotenv.2021.151218] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2021] [Revised: 10/19/2021] [Accepted: 10/21/2021] [Indexed: 06/13/2023]
Abstract
Arsenic is a notorious element with the potential to harm exposed individuals in ways that include cancerous and non-cancerous health complications. Millions of people across the globe (especially in South and Southeast Asian countries including China, Vietnam, India and Bangladesh) are currently being unknowingly exposed to precarious levels of arsenic. Among the diverse effects associated with such arsenic levels of exposure is the propensity to alter the epigenome. Although a large volume of literature exists on arsenic-induced genotoxicity, cytotoxicity, and inter-individual susceptibility due to active research on these subject areas from the last millennial, it is only recently that attention has turned on the ramifications and mechanisms of arsenic-induced epigenetic changes. The present review summarizes the possible mechanisms involved in arsenic induced epigenetic alterations. It focuses on the mechanisms underlying epigenome reprogramming from arsenic exposure that result in improper cell signaling and dysfunction of various epigenetic components. The mechanistic information articulated from the review is used to propose a number of novel therapeutic strategies with a potential for ameliorating the burden of worldwide arsenic poisoning.
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Affiliation(s)
- Arijit Chakraborty
- Kolkata Zonal Center, CSIR-National Environmental Engineering Research Institute (NEERI), Kolkata, West Bengal 700107, India
| | - Soma Ghosh
- Kolkata Zonal Center, CSIR-National Environmental Engineering Research Institute (NEERI), Kolkata, West Bengal 700107, India
| | - Bratisha Biswas
- Kolkata Zonal Center, CSIR-National Environmental Engineering Research Institute (NEERI), Kolkata, West Bengal 700107, India
| | - Sreemanta Pramanik
- Kolkata Zonal Center, CSIR-National Environmental Engineering Research Institute (NEERI), Kolkata, West Bengal 700107, India
| | - Jerome Nriagu
- Department of Environmental Health Sciences, School of Public Health, University of Michigan, 109 Observatory Street, Ann Arbor, MI 48109-2029, USA
| | - Subhamoy Bhowmick
- Kolkata Zonal Center, CSIR-National Environmental Engineering Research Institute (NEERI), Kolkata, West Bengal 700107, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India.
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Ozturk M, Metin M, Altay V, Bhat RA, Ejaz M, Gul A, Unal BT, Hasanuzzaman M, Nibir L, Nahar K, Bukhari A, Dervash MA, Kawano T. Arsenic and Human Health: Genotoxicity, Epigenomic Effects, and Cancer Signaling. Biol Trace Elem Res 2022; 200:988-1001. [PMID: 33864199 DOI: 10.1007/s12011-021-02719-w] [Citation(s) in RCA: 40] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/09/2021] [Accepted: 04/11/2021] [Indexed: 02/06/2023]
Abstract
Arsenic is a well-known element because of its toxicity. Humans as well as plants and animals are negatively affected by its exposure. Some countries suffer from high levels of arsenic in their tap water and soils, which is considered a primary arsenic-linked risk factor for living beings. Humans generally get exposed to arsenic by contaminated drinking waters, resulting in many health problems, ranging from cancer to skin diseases. On the other hand, the FDA-certified drug arsenic trioxide provides solutions for various diseases, including several types of cancers. This issue emphasizes the importance of speciation of the metalloid elements in terms of impacts on health. When species get exposed to arsenic, it affects the cells altering their involvement. It can lead to abnormalities in inflammatory mechanisms and the immune system which contribute to the negative impacts generated on the body. The poisoning originating from arsenic gives rise to various biological signs on the body which can be useful for the diagnosis. It is important to find true biomarkers for the detection of arsenic poisoning. In view of its application in medicine and biology, studies on understanding the biological activity of arsenic have increased. In this review, we aim at summarizing the current state of knowledge of arsenic and the mechanism behind its toxicity including genotoxicity, oxidative insults, epigenomic changes, and alterations in cellular signaling.
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Affiliation(s)
- Munir Ozturk
- Department of Botany and Centre for Environmental Studies, Ege University, Izmir, Turkey.
| | - Mert Metin
- Graduate School of Environmental Engineering, The University of Kitakyushu, 1-1 Hibikino, Wakamatsu-ku, Kitakyushu, Fukuoka, 808-0135, Japan
| | - Volkan Altay
- Department of Biology, Faculty of Science and Arts, Hatay Mustafa Kemal University, Hatay, Turkey
| | - Rouf Ahmad Bhat
- Department of Environmental Science, Sri Pratap College, Cluster University Srinagar, Srinagar, Kashmir, India
| | - Mahnoor Ejaz
- Atta-ur-Rahman School of Applied Biosciences, Nat. University of Sciences & Technology, Islamabad, Pakistan
| | - Alvina Gul
- Atta-ur-Rahman School of Applied Biosciences, Nat. University of Sciences & Technology, Islamabad, Pakistan
| | - Bengu Turkyilmaz Unal
- Faculty of Science and Arts, Dept. of Biotechnology, Nigde Omer Halisdemir University, Nigde, Turkey
| | - Mirza Hasanuzzaman
- Department of Agronomy, Faculty of Agriculture, Sher-e-Bangla Agricultural University, Dhaka, Bangladesh
| | - Lutfunnahar Nibir
- Upazilla Health Complex, Ministry of Health, Government of the People's, Homna, Comilla, Bangladesh
| | - Kamuran Nahar
- Dept. of Agricultural Botany, Faculty of Agriculture, Sher-e-Bangla Agricul. University, Dhaka, Bangladesh
| | - Andleep Bukhari
- Medical Pharmacology, Cerrahpasa Medical Faculty, Istanbul University, Istanbul, Turkey
| | - Moonisa Aslam Dervash
- Sher-e-Kashmir University of Agricultural Sciences and Technology, Srinagar, Kashmir, India
| | - Tomonori Kawano
- Graduate School of Environmental Engineering, The University of Kitakyushu, 1-1 Hibikino, Wakamatsu-ku, Kitakyushu, Fukuoka, 808-0135, Japan
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Jahan Toma N, Anwar S, Kabir T, Hosen MJ. Lead and lead-arsenic combined exposure induces mortality and developmental impairments in zebrafish embryos: a study using wild-caught zebrafish from Bangladesh. Drug Chem Toxicol 2021; 45:2833-2842. [PMID: 34747291 DOI: 10.1080/01480545.2021.1996594] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Heavy metal toxicity has become a global health burden, exerting various physiological effects on aquatic animals and humans. Zebrafish (Danio rerio) has emerged as a real-time model system for toxicological study. We previously reported the effects of arsenic on the embryonic development of zebrafish. The current study aimed to get deep insights into the toxic effects of another heavy metal, lead, on the early embryonic development of wild-caught zebrafish. We exposed freshly collected zebrafish embryos to different lead concentrations and studied different developmental and morphological changes using an inverted microscope. In a separate experiment, embryos were exposed to a combination of lead and arsenic to evaluate the combined effects of the elements. Lead concentration of as low as 0.25 mM resulted in developmental and morphological abnormalities in the zebrafish embryos. Exposure to different concentrations (0.25 mM, 0.5 mM, and 0.75 mM) caused a higher mortality rate of the embryos. Besides, an increased rate of arrested hatching, irregularities in size and shape of the yolk sac, deformed otic vesicle, and body curvature were observed in a dose-dependent manner. Lead exposure also resulted in reduced heart rate and severe pericardial edema. The combined effect of minimum concentrations of lead and arsenic that causes toxicity individually (0.25 mM and 1.0 mM, respectively) revealed a more severe effect than the individual treatments. This study's findings explain the association of heavy metal exposure with an increased rate of miscarriage/abortion incidences in highly polluted areas assisting in proper management and creating public awareness.
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Affiliation(s)
- Nusrat Jahan Toma
- Department of Genetic Engineering and Biotechnology, School of Life Sciences, Shahjalal University of Science and Technology, Sylhet, Bangladesh
| | - Saeed Anwar
- Department of Genetic Engineering and Biotechnology, School of Life Sciences, Shahjalal University of Science and Technology, Sylhet, Bangladesh
| | - Tamanna Kabir
- Department of Genetic Engineering and Biotechnology, School of Life Sciences, Shahjalal University of Science and Technology, Sylhet, Bangladesh
| | - Mohammad Jakir Hosen
- Department of Genetic Engineering and Biotechnology, School of Life Sciences, Shahjalal University of Science and Technology, Sylhet, Bangladesh
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Garla R, Sharma N, Kaushal N, Garg ML. Effect of Zinc on Hepatic and Renal Tissues of Chronically Arsenic Exposed Rats: A Biochemical and Histopathological Study. Biol Trace Elem Res 2021; 199:4237-4250. [PMID: 33389622 DOI: 10.1007/s12011-020-02549-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/05/2020] [Accepted: 12/17/2020] [Indexed: 02/07/2023]
Abstract
Consumption of arsenic-contaminated drinking water has become major global health concern. One of the major mechanism responsible for the toxicity of arsenicals is the generation of oxidative stress. Zinc, a nutritional antioxidant, plays key role in maintaining various cellular pathways. The present study was aimed at elucidating the effects of zinc supplementation on hepatic and renal tissue damage caused by arsenic exposure to rats. Rats were randomly divided into four experimental groups: control; As administered; Zn supplemented; combined zinc; and arsenic supplemented. Arsenic exposure resulted in significantly elevated accumulation of arsenic in the liver and kidney tissue. In the liver, exposure to arsenic reduced the levels of reduced glutathione (GSH), total glutathione (TG), redox ratio, and the activity of superoxide dismutase (SOD), whereas lipid peroxidation (LPO), inflammation markers, and nitric oxide (NO) levels were elevated with no significant change in catalase (CAT) activity. Arsenic exposure also enhanced the serum levels of liver functional indices and histological abnormalities in liver sections. In the kidney, a significant increase in NO levels and decrease in SOD activity was observed, with no significant changes in the rest of the parameters. The administration of zinc- to arsenic-intoxicated animals significantly improved their hepatic function parameters, arsenic burden, and histological changes which were associated with the restoration of enzymatic and non-enzymatic antioxidant defense system as compared to their intoxicated counterparts. In the kidney also, the NO levels and SOD activity were restored. This data reveals that zinc is effective in ameliorating the toxic effects inflicted by chronic arsenic toxicity.
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Affiliation(s)
- Roobee Garla
- Department of Biophysics, South Campus, Panjab University, Chandigarh, 160014, India.
| | - Nikita Sharma
- Department of Biophysics, South Campus, Panjab University, Chandigarh, 160014, India
| | - Naveen Kaushal
- Department of Biophysics, South Campus, Panjab University, Chandigarh, 160014, India
| | - Mohan Lal Garg
- Department of Biophysics, South Campus, Panjab University, Chandigarh, 160014, India
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36
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Coral JA, Heaps S, Glaholt SP, Karty JA, Jacobson SC, Shaw JR, Bondesson M. Arsenic exposure induces a bimodal toxicity response in zebrafish. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2021; 287:117637. [PMID: 34182391 DOI: 10.1016/j.envpol.2021.117637] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Revised: 06/17/2021] [Accepted: 06/19/2021] [Indexed: 05/25/2023]
Abstract
In toxicology, standard sigmoidal concentration-response curves are used to predict effects concentrations and set chemical regulations. However, current literature also establishes the existence of complex, bimodal concentration-response curves, as is the case for arsenic toxicity. This bimodal response has been observed at the molecular level, but not characterized at the whole organism level. This study investigated the effect of arsenic (sodium arsenite) on post-gastrulated zebrafish embryos and elucidated effects of bimodal concentration-responses on different phenotypic perturbations. Six hour post fertilized (hpf) zebrafish embryos were exposed to arsenic to 96 hpf. Hatching success, mortality, and morphometric endpoints were evaluated both in embryos with chorions and dechorionated embryos. Zebrafish embryos exhibited a bimodal response to arsenic exposure. Concentration-response curves for exposed embryos with intact chorions had an initial peak in mortality (88%) at 1.33 mM arsenic, followed by a decrease in toxicity (~20% mortality) at 1.75 mM, and subsequently peaked to 100% mortality at higher concentrations. To account for the bimodal response, two distinct concentration-response curves were generated with estimated LC10 values (and 95% CI) of 0.462 (0.415, 0.508) mM and 1.69 (1.58, 1.78) mM for the 'low concentration' and 'high concentration' peaks, respectively. Other phenotypic analyses, including embryo length, yolk and pericardial edema all produced similar concentration-response patterns. Tests with dechorionated embryos also resulted in a bimodal toxicity response but with lower LC10 values of 0.170 (0.120, 0.220) mM and 0.800 (0.60, 0842) mM, respectively. Similarities in bimodal concentration-responses between with-chorion and dechorionated embryos indicate that the observed effect was not caused by the chorion limiting arsenic availability, thus lending support to other studies such as those that hypothesized a conserved bimodal mechanism of arsenic interference with nuclear receptor activation.
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Affiliation(s)
- Jason A Coral
- Department of Intelligent Systems Engineering, Indiana University, Bloomington, IN, USA.
| | - Samuel Heaps
- Department of Intelligent Systems Engineering, Indiana University, Bloomington, IN, USA
| | - Stephen P Glaholt
- O'Neill School of Public and Environmental Affairs, Indiana University, Bloomington, IN, USA
| | - Jonathan A Karty
- Department of Chemistry, Indiana University, Bloomington, IN, USA
| | | | - Joseph R Shaw
- O'Neill School of Public and Environmental Affairs, Indiana University, Bloomington, IN, USA
| | - Maria Bondesson
- Department of Intelligent Systems Engineering, Indiana University, Bloomington, IN, USA
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Zhong G, Wan F, Lan J, Jiang X, Wu S, Pan J, Tang Z, Hu L. Arsenic exposure induces intestinal barrier damage and consequent activation of gut-liver axis leading to inflammation and pyroptosis of liver in ducks. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 788:147780. [PMID: 34022569 DOI: 10.1016/j.scitotenv.2021.147780] [Citation(s) in RCA: 77] [Impact Index Per Article: 25.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Revised: 04/28/2021] [Accepted: 05/11/2021] [Indexed: 06/12/2023]
Abstract
Arsenic is an important hazardous metalloid commonly found in polluted soil, rivers and groundwater. However, few studies exist regarding the effect of arsenic trioxide (ATO) on the gut-liver axis and consequent hepatotoxicity in waterfowl. Here, we investigated the influence of ATO on duck intestines and livers, and explored the role of the gut-liver axis in ATO-induced hepatotoxicity and intestinal toxicity. Our results demonstrated that ATO-exposure induced intestinal damage, liver inflammatory cell infiltration and vesicle steatosis. Additionally, the intestinal microbiota community in ATO-exposed ducks displayed significantly decreased α-diversity and an altered bacterial composition. Moreover, ATO-exposure markedly reduced the expression of intestinal barrier-related proteins (Claudin-1, MUC2, ZO-1 and Occludin), resulting in increased intestinal permeability and elevated lipopolysaccharide levels. Simultaneously, ATO-exposure also upregulated pyroptosis-related index levels in the liver and jejunum, and increased pro-inflammatory cytokine production (IFN-γ, TNF-α, IL-18, and IL-1β). Our further mechanistic studies showed that ATO-induced liver and jejunum inflammation were provoked by the activation of the LPS/TLR4/NF-κB signaling pathway and NLRP3 inflammasome. In summary, these results manifested that ATO exposure can cause liver and jejunal inflammation and pyroptosis, and the indirect gut-liver axis pathway may play an essential role in the potential mechanism of ATO-induced hepatotoxicity.
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Affiliation(s)
- Gaolong Zhong
- College of Veterinary Medicine, Key Laboratory of Animal Vaccine Development, Ministry of Agriculture and Rural Affairs, South China Agricultural University, Guangzhou 510642, China.
| | - Fang Wan
- College of Veterinary Medicine, Key Laboratory of Animal Vaccine Development, Ministry of Agriculture and Rural Affairs, South China Agricultural University, Guangzhou 510642, China.
| | - Juan Lan
- College of Veterinary Medicine, Key Laboratory of Animal Vaccine Development, Ministry of Agriculture and Rural Affairs, South China Agricultural University, Guangzhou 510642, China.
| | - Xuanxuan Jiang
- College of Veterinary Medicine, Key Laboratory of Animal Vaccine Development, Ministry of Agriculture and Rural Affairs, South China Agricultural University, Guangzhou 510642, China.
| | - Shaofeng Wu
- College of Veterinary Medicine, Key Laboratory of Animal Vaccine Development, Ministry of Agriculture and Rural Affairs, South China Agricultural University, Guangzhou 510642, China.
| | - Jiaqiang Pan
- College of Veterinary Medicine, Key Laboratory of Animal Vaccine Development, Ministry of Agriculture and Rural Affairs, South China Agricultural University, Guangzhou 510642, China.
| | - Zhaoxin Tang
- College of Veterinary Medicine, Key Laboratory of Animal Vaccine Development, Ministry of Agriculture and Rural Affairs, South China Agricultural University, Guangzhou 510642, China.
| | - Lianmei Hu
- College of Veterinary Medicine, Key Laboratory of Animal Vaccine Development, Ministry of Agriculture and Rural Affairs, South China Agricultural University, Guangzhou 510642, China.
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Fu Y, Wang L, Peng W, Fan Q, Li Q, Dong Y, Liu Y, Boczkaj G, Wang Z. Enabling simultaneous redox transformation of toxic chromium(VI) and arsenic(III) in aqueous media-A review. JOURNAL OF HAZARDOUS MATERIALS 2021; 417:126041. [PMID: 34229381 DOI: 10.1016/j.jhazmat.2021.126041] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2020] [Revised: 03/20/2021] [Accepted: 05/02/2021] [Indexed: 06/13/2023]
Abstract
Simultaneous conversion of most harmful As(III) and Cr(VI) to their less toxic counterparts is environmentally desirable and cost-effective. It has been confirmed that simultaneous oxidation of As(III) to As(V) and reduction of Cr(VI) to Cr(III) can occur via free radical or mediated electron transfer processes. While Cr(VI) is reduced by reacting with H•, eaq-, photoelectron directly or undergoing ligand exchange with H2O2 and SO32-, As(III) is oxidized by HO•, SO4•-, O2•-, and holes (h+) in free radical process. The ability to concentrate Cr and As species on heterogeneous interface and conductivity determining the co-conversion efficiency in mediated electron transfer process. Acidity has positive effect on these co-conversion, while mediated electron transfer process is not much affected by dissolved oxygen (O2). Organic compounds (e.g., oxalate, citrate and phenol) commonly favor Cr(VI) reduction and inhibit As(III) oxidation. To better understand the trends in the existing data and to identify the knowledge gaps, this review elaborates the complicated mechanisms for co-conversion of As(III) and Cr(VI) by various methods. Some challenges and prospects in this active field are also briefly discussed.
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Affiliation(s)
- Yu Fu
- Shanghai Key Lab for Urban Ecological Processes and Eco-Restoration, School of Ecological and Environmental Sciences, East China Normal University, Shanghai 200241, China
| | - Lingli Wang
- Shanghai Key Lab for Urban Ecological Processes and Eco-Restoration, School of Ecological and Environmental Sciences, East China Normal University, Shanghai 200241, China
| | - Wenya Peng
- Shanghai Key Lab for Urban Ecological Processes and Eco-Restoration, School of Ecological and Environmental Sciences, East China Normal University, Shanghai 200241, China
| | - Qingya Fan
- Shanghai Key Lab for Urban Ecological Processes and Eco-Restoration, School of Ecological and Environmental Sciences, East China Normal University, Shanghai 200241, China
| | - Qingchao Li
- Shanghai Key Lab for Urban Ecological Processes and Eco-Restoration, School of Ecological and Environmental Sciences, East China Normal University, Shanghai 200241, China
| | - Yongxia Dong
- Shanghai Key Lab for Urban Ecological Processes and Eco-Restoration, School of Ecological and Environmental Sciences, East China Normal University, Shanghai 200241, China
| | - Yunjiao Liu
- Shanghai Key Lab for Urban Ecological Processes and Eco-Restoration, School of Ecological and Environmental Sciences, East China Normal University, Shanghai 200241, China
| | - Grzegorz Boczkaj
- Gdansk University of Technology, Faculty of Chemistry, Department of Chemical and Process Engineering, G. Narutowicza St. 11/12, 80-233 Gdansk, Poland; EkoTech Center, Gdansk University of Technology, G. Narutowicza St. 11/12, 80-233 Gdansk, Poland
| | - Zhaohui Wang
- Shanghai Key Lab for Urban Ecological Processes and Eco-Restoration, School of Ecological and Environmental Sciences, East China Normal University, Shanghai 200241, China; Shanghai Engineering Research Center of Biotransformation of Organic Solid Waste, Shanghai 200241, China; Technology Innovation Center for Land Spatial Eco-Restoration in Metropolitan Area, Ministry of Natural Resources, 3663 N. Zhongshan Road, Shanghai 200062, China.
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Wang Z, Fu Y, Wang L. Abiotic oxidation of arsenite in natural and engineered systems: Mechanisms and related controversies over the last two decades (1999-2020). JOURNAL OF HAZARDOUS MATERIALS 2021; 414:125488. [PMID: 33676246 DOI: 10.1016/j.jhazmat.2021.125488] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/22/2020] [Revised: 02/17/2021] [Accepted: 02/19/2021] [Indexed: 06/12/2023]
Abstract
Abiotic oxidation of toxic As(III) to As(V) is being deemed as a necessary step for the overall arsenic decontamination in both natural and engineered systems. Direct oxidation of As(III) by chemical oxidants, such as ozone, permanganate, ferrate, chlorine and chloramine, or naturally occurring minerals like Mn, Fe oxides, seems straightforward. Both O2 and H2O2 are ineffective for arsenite oxidation, but they can be activated by reducing substances like Fe2+, Fe0 to increase the oxidation rates. Photo-induced oxidation of As(III) has been demonstrated effective in Fe complexes or minerals, NO3-/NO2-, dissolved organic matter (DOM), peroxygens and TiO2 systems. Although a variety of oxidation methods have been developed over the past two decades, there remain many scientific and technical challenges that must be overcome before the rapid progress in basic knowledge can be translated into environmental benefits. To better understand the trends in the existing data and to identify the knowledge gaps, this review describes in detail the complicated mechanisms for As(III) oxidation by various methods and emphasizes on the conflicting data and explanation. Some prevailing concerns and challenges in the sphere of As(III) oxidation are also pointed out so as to appeal to researchers for further investigations.
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Affiliation(s)
- Zhaohui Wang
- Shanghai Key Lab for Urban Ecological Processes and Eco-Restoration, School of Ecological and Environmental Sciences, East China Normal University, Shanghai 200241, China; Shanghai Engineering Research Center of Biotransformation of Organic Solid Waste, Shanghai 200241, China; Technology Innovation Center for Land Spatial Eco-restoration in Metropolitan Area, Ministry of Natural Resources, 3663N. Zhongshan Road, Shanghai 200062, China.
| | - Yu Fu
- Shanghai Key Lab for Urban Ecological Processes and Eco-Restoration, School of Ecological and Environmental Sciences, East China Normal University, Shanghai 200241, China
| | - Lingli Wang
- Shanghai Key Lab for Urban Ecological Processes and Eco-Restoration, School of Ecological and Environmental Sciences, East China Normal University, Shanghai 200241, China
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Xu M, Yi M, Li N. MicroRNA-17-5p restrains the dysfunction of Ang-II induced podocytes by suppressing secreted modular calcium-binding protein 2 via NF-κB and TGFβ signaling. ENVIRONMENTAL TOXICOLOGY 2021; 36:1402-1411. [PMID: 33835671 DOI: 10.1002/tox.23136] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Revised: 03/10/2021] [Accepted: 03/13/2021] [Indexed: 06/12/2023]
Abstract
Glomerulonephritis, also known as nephritis syndrome (nephritis for short), is a common kidney disease. Previous research has proved that microRNAs (miRNAs) frequently regulate various diseases including nephritis. Nonetheless, the biological function and molecular mechanism of miR-17-5p are unclear in nephritis. In the current study, RT-qPCR analysis showed that miR-17-5p was downregulated in Ang II-induced podocytes. Also, according to the results from RT-qPCR analysis, CCK-8 assay, flow cytometric analysis, western blot analysis, and ELISA miR-17-5p elevation alleviated Ang II-induced podocyte injury. Besides, luciferase reporter assay, western blot and RT-qPCR analyses revealed that SMOC2 was targeted by miR-17-5p in Ang II-induced podocytes. Additionally, rescue assays demonstrated that overexpressed SMOC2 counteracted the influence of overexpressed miR-17-5p on cell injury of Ang II-induced podocytes. Moreover, our data suggested that miR-17-5p-SMOC2 axis regulated TGFβ and NF-κB signaling activation in Ang II-induced podocytes. SMOC2 regulated cell viability, apoptosis and extracellular matrix (ECM) deposition in Ang II-induced podocytes via TGFβ signaling, and SMOC2 regulated inflammation in Ang II-induced podocytes through NF-κB signaling. Overall, our study demonstrated that miRNA-17-5p restrained the dysfunction of Ang-II induced podocytes by suppressing SMOC2 via the NF-κB and TGFβ signaling.
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Affiliation(s)
- Mingzhu Xu
- Department of Nephrology, China-Japan Union Hospital of Jilin University, Jilin, China
| | - Mengqiu Yi
- Intensive Care Unit, Songyuan Jilin Oilfield Hospital, Jilin, China
| | - Na Li
- Department of Nephrology, China-Japan Union Hospital of Jilin University, Jilin, China
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Kumarathilaka P, Bundschuh J, Seneweera S, Ok YS. Rice genotype's responses to arsenic stress and cancer risk: The effects of integrated birnessite-modified rice hull biochar-water management applications. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 768:144531. [PMID: 33736304 DOI: 10.1016/j.scitotenv.2020.144531] [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: 09/11/2020] [Revised: 12/11/2020] [Accepted: 12/12/2020] [Indexed: 06/12/2023]
Abstract
The health risks associated with ingestion of arsenic (As) via consumption of rice are a global concern. This study investigated the effects of integrated biochar (BC)-water management approaches to As stress and to associated health risks in rice. Rice cultivars, Jayanthi and Ishikari, were grown, irrigated with As-containing water (1 mg L-1), under the following treatments: (1) birnessite-modified rice hull biochar (Mn-RBC)-flooded water management, (2) Mn-RBC-intermittent water management, (3) conventional flooded water management, and (4) intermittent water management. Rice yield in both rice varieties increased by 10%-34% under Mn-RBC-flooded and Mn-RBC-intermittent treatments compared to the conventional flooded treatment. In most cases, inorganic As concentration in rice roots, shoots, husks, and unpolished grains in both rice varieties was significantly (p ≤ 0.05) lowered by 20%-81%, 6%-81%, 30%-75%, and 18%-44%, respectively, under Mn-RBC-flooded, Mn-RBC-intermittent, and intermittent treatments over flooded treatment. Incremental lifetime cancer risks associated with consumption of both rice varieties were also lowered from 18% to 44% under Mn-RBC-flooded, Mn-RBC-intermittent, and intermittent treatments compared to flooded treatment. Overall, the integrated Mn-RBC-intermittent approach can be applied to As-endemic areas to produce safer rice grains and reduce the incremental lifetime cancer risk through rice consumption.
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Affiliation(s)
- Prasanna Kumarathilaka
- School of Civil Engineering and Surveying, Faculty of Health, Engineering and Sciences, University of Southern Queensland, West Street, Toowoomba, Queensland 4350, Australia
| | - Jochen Bundschuh
- School of Civil Engineering and Surveying, Faculty of Health, Engineering and Sciences, University of Southern Queensland, West Street, Toowoomba, Queensland 4350, Australia; UNESCO Chair on Groundwater Arsenic within the 2030 Agenda for Sustainable Development, University of Southern Queensland, West Street, Toowoomba, Queensland 4350, Australia.
| | - Saman Seneweera
- Centre for Crop Health, Faculty of Health, Engineering and Sciences, University of Southern Queensland, West Street, Toowoomba, Queensland 4350, Australia; National Institute of Fundamental Studies, Hantana Road, Kandy 20000, Sri Lanka
| | - Yong Sik Ok
- Korea Biochar Research Center & Division of Environmental Science and Ecological Engineering, Korea University, Seoul, Korea
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Kenyon EM. Arsenic toxicokinetic modeling and risk analysis: Progress, needs and applications. Toxicology 2021; 457:152809. [PMID: 33965444 DOI: 10.1016/j.tox.2021.152809] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Revised: 04/05/2021] [Accepted: 05/03/2021] [Indexed: 02/07/2023]
Abstract
Arsenic (As) poses unique challenges in PBTK model development and risk analysis applications. Arsenic metabolism is complex, adequate information to attribute specific metabolites to particular adverse effects in humans is sparse, and measurement of relevant metabolites in biological media can be difficult. Multiple As PBTK models have been published and used or adapted for use in various exposure and risk analysis applications. These applications illustrate the broad utility of PBTK models for exposure and dose-response analysis, particularly for arsenic where multi-pathway, multi-route exposures and multiple toxic effects are of concern. Arsenic PBTK models have been used together with exposure reconstruction and dose-response functions to estimate risk of specific adverse health effects due to drinking water exposure and consumption of specific foodstuffs (e.g. rice, seafood), as well as to derive safe exposure levels and develop consumption advisories. Future refinements to arsenic PBTK models can enhance the confidence in such analyses. Improved estimates for methylation biotransformation parameters based on in vitro to in vivo extrapolation (IVIVE) methods and estimation of interindividual variability in key model parameters for specific toxicologically relevant metabolites are two important areas for consideration.
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Affiliation(s)
- Elaina M Kenyon
- Center for Computational Toxicology and Exposure, U.S. EPA, Office of Research and Development, Research Triangle Park, NC, United States.
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Rajatheja MKJC, Chandrajith R, Bentota A, Jayasinghe GY. A Comparative Assessment of Trace Element Accumulation in Native and Improved Rice (Oryza sativa L.) Varieties Grown Under Different Conditions of Fertilizer Application. Biol Trace Elem Res 2021; 199:1153-1160. [PMID: 32472354 DOI: 10.1007/s12011-020-02213-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/02/2019] [Accepted: 05/20/2020] [Indexed: 01/08/2023]
Abstract
Rice (Oryza sativa L.) is the main food crop cultivated in Sri Lanka, and different varieties of rice are grown under different conditions of fertilizer application throughout the country. Since the consumption of rice is extremely high, it is considered as the major dietary source for macro- and micro-nutrients and also for toxic trace elements. The main objective of this study was to investigate and compare trace element levels in native and improved rice varieties that were grown under both organic and inorganic chemical fertilizers and also under unfertilized conditions. Rice grains were collected from a plot experiment with seven native and seven improved rice varieties that were treated with organic and inorganic fertilizers. Contents of macro-nutrients (Na, K, Ca and Mg) and trace elements (Cd, As, Pb, Cr, Mn, Co, Ni, Cu, Zn and Ba) in rice grains were measured by inductively coupled plasma mass spectrometry. The results indicated that rice cultivated using inorganic fertilizers showed the highest mean trace element contents while organic fertilizer-treated improved rice varieties showed the lowest Cd (0.10 mg/kg) which is lower than the maximum permissible level (0.2 μg g-1). The highest mean value of Cd (0.32 mg/kg) was recorded in native rice varieties grown in plots with chemical fertilizer applications. However, the As content in rice samples collected from all treatment conditions indicated contents lower than the maximum permissible level. Rice cultivated in plots that were treated with chemical fertilizer showed the highest mean macro-nutrient contents.
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Affiliation(s)
| | - Rohana Chandrajith
- Department of Geology, Faculty of Science, University of Peradeniya, Peradeniya, Sri Lanka
| | - Amita Bentota
- Rice Research and Development Institute (RRDI), Batalagoda, Sri Lanka
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Arsenic Contamination of Groundwater and Its Implications for Drinking Water Quality and Human Health in Under-Developed Countries and Remote Communities—A Review. APPLIED SCIENCES-BASEL 2021. [DOI: 10.3390/app11041926] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Arsenic is present naturally in many geological formations around the world and has been found to be a major source of contamination of groundwater in some countries. This form of contamination represents a serious threat to health, economic and social well-being, particularly in under-developed countries and remote communities. The chemistry of arsenic and the factors that influence the form(s) in which it may be present and its fate when introduced into the environment is discussed briefly in this review. A global overview of arsenic contamination of groundwater around the world is then discussed. As a case study, the identified and established causes of groundwater contamination by arsenic in Bangladesh is highlighted and a perspective is provided on the consequential health, agricultural, social and economic impacts. In addition, the relevant removal strategies that have been developed and can generally be used to remediate arsenic contamination are discussed. Also, the possible influence of groundwater inorganic compositions, particularly iron and phosphate, on the effectiveness of arsenic removal is discussed. Furthermore, some specific examples of the filter systems developed successfully for domestic arsenic removal from groundwater to provide required potable water for human consumption are discussed. Lastly, important considerations for further improving the performance and effectiveness of these filter systems for domestic use are outlined.
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Xiao T, Zou Z, Xue J, Syed BM, Sun J, Dai X, Shi M, Li J, Wei S, Tang H, Zhang A, Liu Q. LncRNA H19-mediated M2 polarization of macrophages promotes myofibroblast differentiation in pulmonary fibrosis induced by arsenic exposure. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2021; 268:115810. [PMID: 33162208 DOI: 10.1016/j.envpol.2020.115810] [Citation(s) in RCA: 40] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/06/2020] [Revised: 10/02/2020] [Accepted: 10/09/2020] [Indexed: 06/11/2023]
Abstract
Arsenic is a potent toxicant, and long-term exposure to inorganic arsenic causes lung damage. M2 macrophages play an important role in the pathogenesis of pulmonary fibrosis. However, the potential connections between arsenic and M2 macrophages in the development of pulmonary fibrosis are elusive. C57BL/6 mice were fed with drinking water containing 0, 10 and 20 ppm arsenite for 12 months. We have found that, in lung tissues of mice, arsenite, a biologically active form of arsenic, elevated H19, c-Myc, and Arg1; decreased let-7a; and caused pulmonary fibrosis. For THP-1 macrophages (THP-M) and bone-marrow-derived macrophages (BMDMs), 8 μM arsenite increased H19, c-Myc, and Arg1; decreased let-7a; and induced M2 polarization of macrophages, which caused secretion of the fibrogenic cytokine, TGF-β1. Down-regulation of H19 or up-regulation of let-7a reversed the arsenite-induced M2 polarization of macrophages. Arsenite-treated THP-M and BMDMs co-cultured with MRC-5 cells or primary lung fibroblasts (PLFs) elevated levels of p-SMAD2/3, SMAD4, α-SMA, and collagen I in lung fibroblasts and resulted in the activation of lung fibroblasts. Knockout of H19 or up-regulation of let-7a in macrophages reversed the effects. The results indicated that H19 functioned as an miRNA sponge for let-7a, which was involved in arsenite-induced M2 polarization of macrophages and induced the myofibroblast differentiation phenotype by regulation of c-Myc. In the sera of arseniasis patients, levels of hydroxyproline and H19 were higher, and levels of let-7a were lower than levels in the controls. These observations elucidate a possible mechanism for arsenic exposure-induced pulmonary fibrosis.
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Affiliation(s)
- Tian Xiao
- Center for Global Health, The Key Laboratory of Modern Toxicology, Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing, 211166, Jiangsu, People's Republic of China; Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Jiangsu Collaborative Innovation Center for Cancer Personalized Medicine, School of Public Health, Nanjing Medical University, Nanjing, 211166, Jiangsu, People's Republic of China
| | - Zhonglan Zou
- The Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, School of Public Health, Guizhou Medical University, Guiyang, 550025, Guizhou, People's Republic of China
| | - Junchao Xue
- Center for Global Health, The Key Laboratory of Modern Toxicology, Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing, 211166, Jiangsu, People's Republic of China; Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Jiangsu Collaborative Innovation Center for Cancer Personalized Medicine, School of Public Health, Nanjing Medical University, Nanjing, 211166, Jiangsu, People's Republic of China
| | - Binafsha Manzoor Syed
- Medical Research Centre, Liaquat University of Medical & Health Sciences, Jamshoro, 76090, Sindh, Pakistan
| | - Jing Sun
- Center for Global Health, The Key Laboratory of Modern Toxicology, Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing, 211166, Jiangsu, People's Republic of China; Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Jiangsu Collaborative Innovation Center for Cancer Personalized Medicine, School of Public Health, Nanjing Medical University, Nanjing, 211166, Jiangsu, People's Republic of China
| | - Xiangyu Dai
- Center for Global Health, The Key Laboratory of Modern Toxicology, Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing, 211166, Jiangsu, People's Republic of China; Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Jiangsu Collaborative Innovation Center for Cancer Personalized Medicine, School of Public Health, Nanjing Medical University, Nanjing, 211166, Jiangsu, People's Republic of China
| | - Ming Shi
- Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, 523808, Guangdong, People's Republic of China
| | - Junjie Li
- Center for Global Health, The Key Laboratory of Modern Toxicology, Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing, 211166, Jiangsu, People's Republic of China; Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Jiangsu Collaborative Innovation Center for Cancer Personalized Medicine, School of Public Health, Nanjing Medical University, Nanjing, 211166, Jiangsu, People's Republic of China
| | - Shaofeng Wei
- The Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, School of Public Health, Guizhou Medical University, Guiyang, 550025, Guizhou, People's Republic of China
| | - Huanwen Tang
- Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, 523808, Guangdong, People's Republic of China
| | - Aihua Zhang
- The Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, School of Public Health, Guizhou Medical University, Guiyang, 550025, Guizhou, People's Republic of China
| | - Qizhan Liu
- Center for Global Health, The Key Laboratory of Modern Toxicology, Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing, 211166, Jiangsu, People's Republic of China; Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Jiangsu Collaborative Innovation Center for Cancer Personalized Medicine, School of Public Health, Nanjing Medical University, Nanjing, 211166, Jiangsu, People's Republic of China.
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Barguilla I, Bach J, Peremartí J, Marcos R, Hernández A. FRA1 is essential for the maintenance of the oncogenic phenotype induced by in vitro long-term arsenic exposure. Metallomics 2020; 12:2161-2173. [PMID: 33313624 DOI: 10.1039/d0mt00209g] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Arsenic induces oncogenic effects activating stress-related signalling pathways. This can result in the over-activation of the AP-1 protein, specifically its FRA1 component. FRA1 is a transcription factor frequently overexpressed in epithelial tumors, where it can regulate the expression of different target genes. Accordingly, FRA1 could play an essential role in the in vitro cell transformation induced by arsenic. FRA1 levels were monitored in MEF cells throughout their transformation stages during 40 weeks of long-term 2 μM arsenic exposure. Interestingly, the results show a progressive FRA1 overexpression with time (60-fold and 11-fold for mRNA and pFRA/non-pFRA1, respectively, at week 40), which may be responsible for the observed altered expression in the FRA1 downstream target genes Pten, Pdcd4, Tpm1, Tgfb1, Tgfb2, Zeb1, Zeb2, and Twist. The levels of MAPKs (ERK, p38, and JNK) and other known players upstream from FRA1 were assessed at equivalent time-points, and ERK, p38 and RAS were pinpointed as potential candidates involved in arsenic-induced FRA1 activation. Furthermore, FRA1 stable knockdown under chronic arsenic exposure settings elicits a remarkable impact on the features relative to the cells' oncogenic phenotype. Notably, FRA1 knockdown cells present a 30% diminished proliferation rate, a 50% lowered migration and invasion potential, a 50% reduction in senescence, and a 30-60% reduced tumorsphere-forming ability. This work is the first to demonstrate the important role of FRA1 in the development and aggressiveness of the in vitro transformed phenotype induced by long-term arsenic exposure.
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Affiliation(s)
- Irene Barguilla
- Group of Mutagenesis, Department of Genetics and Microbiology, Faculty of Biosciences, Universitat Autònoma de Barcelona, Edifici Cn, Campus de Bellaterra, 08193 Cerdanyola del Vallès (Barcelona), Spain.
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Yang J, Bertram J, Schettgen T, Heitland P, Fischer D, Seidu F, Felten M, Kraus T, Fobil JN, Kaifie A. Arsenic burden in e-waste recycling workers - A cross-sectional study at the Agbogbloshie e-waste recycling site, Ghana. CHEMOSPHERE 2020; 261:127712. [PMID: 32736245 DOI: 10.1016/j.chemosphere.2020.127712] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/22/2020] [Revised: 07/06/2020] [Accepted: 07/12/2020] [Indexed: 06/11/2023]
Abstract
The export of e-waste from industrialized to developing countries has led to the formation of a large-scale informal e-waste recycling sector in Accra, Ghana. During recycling processes, workers are exposed to several hazardous substances, such as heavy metals. As a common component of e-waste, inorganic arsenic can be released during e-waste recycling processes. The aim of this study was to assess the exposure to inorganic arsenic species in e-waste workers compared to a control group. N = 84 e-waste workers and n = 94 control subjects were included in this analysis. Inorganic arsenic species were determined in urine samples using HPLC-ICP-MS. E-waste workers showed higher median concentrations of As(III), As(V), MMA, DMA and the sum of inorganic arsenic in comparison to the control group. More than 80% of the e-waste workers exceeded the acceptable concentration (14 μg/L), which was significantly higher in comparison to the control group (70%). The tolerable concentration (40 μg/L) was exceeded in 17.2% of the participants, meaning a statistically relevant risk of developing cancer due to arsenic exposure throughout their (working) life. In conclusion, the exposure to inorganic arsenic is not only a problem of informal e-waste recycling, but a major public health concern that needs further investigation.
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Affiliation(s)
- Jennie Yang
- Institute for Occupational, Social, and Environmental Medicine, Medical Faculty, RWTH Aachen University, Aachen, Germany
| | - Jens Bertram
- Institute for Occupational, Social, and Environmental Medicine, Medical Faculty, RWTH Aachen University, Aachen, Germany
| | - Thomas Schettgen
- Institute for Occupational, Social, and Environmental Medicine, Medical Faculty, RWTH Aachen University, Aachen, Germany
| | | | - Damian Fischer
- Institute for Occupational, Social, and Environmental Medicine, Medical Faculty, RWTH Aachen University, Aachen, Germany
| | - Fatima Seidu
- GIZ (German Society for International Cooperation), Office Accra, Ghana
| | - Michael Felten
- Institute for Occupational, Social, and Environmental Medicine, Medical Faculty, RWTH Aachen University, Aachen, Germany
| | - Thomas Kraus
- Institute for Occupational, Social, and Environmental Medicine, Medical Faculty, RWTH Aachen University, Aachen, Germany
| | - Julius N Fobil
- Department of Biological, Environmental, Occupational and Health Sciences, School of Public Health, University of Ghana, Legon, Ghana
| | - Andrea Kaifie
- Institute for Occupational, Social, and Environmental Medicine, Medical Faculty, RWTH Aachen University, Aachen, Germany.
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Involvement of the Cell Wall Integrity Pathway of Saccharomyces cerevisiae in Protection against Cadmium and Arsenate Stresses. Appl Environ Microbiol 2020; 86:AEM.01339-20. [PMID: 32859590 DOI: 10.1128/aem.01339-20] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2020] [Accepted: 08/20/2020] [Indexed: 01/07/2023] Open
Abstract
Contamination of soil and water with heavy metals and metalloids is a serious environmental problem. Cadmium and arsenic are major environmental contaminants that pose a serious threat to human health. Although toxicities of cadmium and arsenic to living organisms have been extensively studied, the molecular mechanisms of cellular responses to cadmium and arsenic remain poorly understood. In this study, we demonstrate that the cell wall integrity (CWI) pathway is involved in coping with cell wall stresses induced by cadmium and arsenate through its role in the regulation of cell wall modification. Interestingly, the Rlm1p and SBF (Swi4p-Swi6p) complex transcription factors of the CWI pathway were shown to be specifically required for tolerance to cadmium and arsenate, respectively. Furthermore, we found the PIR2 gene, encoding cell wall O-mannosylated heat shock protein, whose expression is under the control of the CWI pathway, is important for maintaining cell wall integrity during cadmium and arsenate stresses. In addition, our results revealed that the CWI pathway is involved in modulating the expression of genes involved in cell wall biosynthesis and cell cycle control in response to cadmium and arsenate via distinct sets of transcriptional regulators.IMPORTANCE Environmental pollution by metal/metalloids such as cadmium and arsenic has become a serious problem in many countries, especially in developing countries. This study shows that in the yeast S. cerevisiae, the CWI pathway plays a protective role against cadmium and arsenate through the upregulation of genes involved in cell wall biosynthesis and cell cycle control, possibly in order to modulate cell wall reconstruction and cell cycle phase transition, respectively. These data provide insights into molecular mechanisms underlying adaptive responses to cadmium and arsenate.
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Nguyen TP, Ruppert H, Pasold T, Sauer B. Paddy soil geochemistry, uptake of trace elements by rice grains (Oryza sativa) and resulting health risks in the Mekong River Delta, Vietnam. ENVIRONMENTAL GEOCHEMISTRY AND HEALTH 2020; 42:2377-2397. [PMID: 31686290 DOI: 10.1007/s10653-019-00456-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2019] [Accepted: 10/24/2019] [Indexed: 06/10/2023]
Abstract
Soil geochemistry and phytoavailable trace elements were investigated in 80 paddy soil samples and corresponding rice grains from the Mekong River Delta in Vietnam. Soil parameters like Fe-, Al-, and Mn-phases, organic matter, and pH-value determine element concentrations in soil and affect their transfer into rice grains. Arsenic exceeded the allowed limit for Vietnamese agricultural soils in 11% of the samples, presumably caused by natural processes. Lead surpassed the limit in one soil sample. Other toxic elements were close to their natural concentrations and far below allowable limits for agricultural soil. There was no clear correlation of trace element concentrations in soils with those in corresponding grains, even if the different soil parameters and the large pH-range between 3.7 and 6.8 were considered. To assess health risks of critical elements in rice, the thresholds of tolerable upper intake level for total food and drinking water (UL) and of permissible maximum concentration (MC) for rice grains were evaluated. Surprisingly, rice grains grown on non- or low-polluted soils can surpass the upper limits. According to the UL concept, 12% of the grains exceeded the UL of As, 29% that of Cd, and 27% that of Pb for each gender. According to the MC concept, 5% of the rice grains exceeded the MC of inorganic As for adults and 38% that for young children. 24% of the grains surpassed the MC of Pb, while Cd in all grains was below the MC. The differing results of the UL and MC approaches show an urgent need for revision and harmonization concerning As, Cd, and Pb limits, especially regarding countries with high rice consumption.
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Affiliation(s)
- Thuy Phuong Nguyen
- Department of Sedimentology/Environmental Geology, Faculty of Geoscience and Geography, Georg-August-University Göttingen, Goldschmidtstraße 3, 37077, Göttingen, Germany.
- Department of Resource and Environment Management, Faculty of Land Resources and Agricultural Environment, Hue University of Agriculture and Forestry, 102 Phung Hung Street, Hue City, Vietnam.
| | - Hans Ruppert
- Department of Sedimentology/Environmental Geology, Faculty of Geoscience and Geography, Georg-August-University Göttingen, Goldschmidtstraße 3, 37077, Göttingen, Germany
| | - Tino Pasold
- Department of Sedimentology/Environmental Geology, Faculty of Geoscience and Geography, Georg-August-University Göttingen, Goldschmidtstraße 3, 37077, Göttingen, Germany
| | - Benedikt Sauer
- Department of Sedimentology/Environmental Geology, Faculty of Geoscience and Geography, Georg-August-University Göttingen, Goldschmidtstraße 3, 37077, Göttingen, Germany
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50
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Tao C, Wei X, Zhang B, Zhao M, Wang S, Sun Z, Qi D, Sun L, Rajput SA, Zhang N. Heavy Metal Content in Feedstuffs and Feeds in Hubei Province, China. J Food Prot 2020; 83:762-766. [PMID: 32294760 DOI: 10.4315/0362-028x.jfp-18-539] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2018] [Accepted: 12/14/2019] [Indexed: 11/11/2022]
Abstract
ABSTRACT Heavy metal pollution threatens the health and life of animals and humans through the food chain. This study was performed to survey the heavy metal contamination in feedstuffs and feeds in Hubei Province, People's Republic of China, from 2012 to 2016. Samples were analyzed for cadmium (306 samples), mercury (117 samples), chromium (149 samples), and arsenic (4,358 samples) using atomic absorption spectrometry or atomic fluorescence spectrometry. The incidence rates of cadmium, mercury, chromium, and arsenic contamination of feedstuffs and feeds were high, and feeds were most often contaminated with chromium, followed by arsenic, cadmium, and mercury. The concentrations of heavy metals in samples positive for cadmium, mercury, chromium, and arsenic ranged from 0.001 to 1.200, 0.002 to 6.540, 0.060 to 8737.000, and 0.070 to 33.000 mg/kg, respectively. The mineral and additive samples had higher concentrations of heavy metals. The present study findings highlight the importance of monitoring heavy metals in feedstuffs and feeds and implementing feed management and bioremediation strategies to reduce heavy metal exposure. HIGHLIGHTS
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Affiliation(s)
- Can Tao
- Department of Animal Nutrition and Feed Science, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan 430070, People's Republic of China.,(ORCID: https://orcid.org/0000-0002-6138-498X [C.T.])
| | - Xiaotian Wei
- Department of Animal Nutrition and Feed Science, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan 430070, People's Republic of China
| | - Beiyu Zhang
- Department of Animal Nutrition and Feed Science, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan 430070, People's Republic of China
| | - Man Zhao
- Department of Animal Nutrition and Feed Science, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan 430070, People's Republic of China
| | - Shuai Wang
- Department of Animal Nutrition and Feed Science, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan 430070, People's Republic of China
| | - Zhangjian Sun
- Department of Animal Nutrition and Feed Science, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan 430070, People's Republic of China
| | - Desheng Qi
- Department of Animal Nutrition and Feed Science, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan 430070, People's Republic of China
| | - Lvhui Sun
- Department of Animal Nutrition and Feed Science, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan 430070, People's Republic of China
| | - Shahid Ali Rajput
- Department of Animal Nutrition and Feed Science, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan 430070, People's Republic of China
| | - Niya Zhang
- Department of Animal Nutrition and Feed Science, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan 430070, People's Republic of China
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