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Wai KM, Swe T, Su Hninn TS, Paing AM, Naing YL, Htay ZW, Ihara K. Prenatal exposure to environmental heavy metals and newborn telomere length: A systematic review and meta-analysis. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 343:123192. [PMID: 38135140 DOI: 10.1016/j.envpol.2023.123192] [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: 04/28/2023] [Revised: 12/13/2023] [Accepted: 12/17/2023] [Indexed: 12/24/2023]
Abstract
Exposure to environmental heavy metals is associated with telomere length (TL) alteration. Available information regarding the effect of prenatal exposure to environmental pollutants on newborn TL is controversial. The aim of this study is to systematically review and conduct a meta-analysis of the existing epidemiological studies on the associations between prenatal metal exposure and newborn TL. A comprehensive literature search was performed using the online databases of PubMed, Web of Science, and ScienceDirect from their inception to December 1, 2023. Thirteen eligible studies were included from the overall initial identification of 3559 records. The effect size was expressed as standardized beta coefficients with 95% confidence intervals (CIs) by the restricted maximum-likelihood approach with a weighted random-effects model. Prenatal exposure to environmental heavy metals was associated with a shorter newborn TL (standardized beta = -0.04; 95% CI: -0.08, 0.00; p = 0.05). Subgroup analysis showed that prenatal exposure to cadmium was significantly, negatively associated with TL in newborns (standardized beta = -0.05; 95% CI: -0.10, -0.01; p = 0.021). Heavy metal exposure during the third trimester was significantly associated with a shorter TL in newborns (standardized beta = -0.05; 95% CI: -0.11, -0.01; p = 0.045). No significant association was found between the newborn's sex and exposure sample type. This study provides evidence for the negative effect of prenatal exposure to heavy metals on newborn TL. In particular, cadmium exposure and exposure during the third trimester of pregnancy are critical factors associated with heavy metal-induced TL shortening.
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Affiliation(s)
- Kyi Mar Wai
- Department of Social Medicine, Graduate School of Medicine, Hirosaki University, Japan; Department of Human Ecology, Graduate School of Medicine, The University of Tokyo, Japan.
| | - Thinzar Swe
- Preclinical Department, University of Medicine (2), Myanmar
| | - Thae Su Su Hninn
- International Program in Hazardous Substance and Environmental Management, Chulalongkorn University, Thailand
| | | | - Yoon Lei Naing
- Department of Human Resource for Health, University of Medicine (1), Myanmar
| | - Zin Wai Htay
- Department of Global Health Policy, Graduate School of Medicine, The University of Tokyo, Japan
| | - Kazushige Ihara
- Department of Social Medicine, Graduate School of Medicine, Hirosaki University, Japan
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Wai KM, Swe T, Myar MT, Aisyah CR, Hninn TSS. Telomeres susceptibility to environmental arsenic exposure: Shortening or lengthening? Front Public Health 2023; 10:1059248. [PMID: 36703827 PMCID: PMC9871564 DOI: 10.3389/fpubh.2022.1059248] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2022] [Accepted: 12/19/2022] [Indexed: 01/12/2023] Open
Abstract
Maintaining telomere length plays a crucial role in regulating cellular life span. Telomere lengthening or shortening is one of the important biomarkers which could predict the preceding or present diseases. Meanwhile, the impact of environmental arsenic exposure on telomere length has increasingly concerned. Although previous studies demonstrated the effects of arsenic on telomere length, the findings were unclear on whether telomere shortens or lengthens by arsenic exposure. Thus, this manuscript summarized and discussed the telomere length alteration following arsenic exposure and the possible does-response effect of arsenic on telomere length. The present review suggested that different age groups may respond differently to arsenic exposure, and the dose-response effect of arsenic could be a critical factor in its effect on telomere length. Moreover, speciation analysis of arsenic could be more informative in identifying the effect of arsenic on telomere length.
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Affiliation(s)
- Kyi Mar Wai
- Department of Social Medicine, Graduate School of Medicine, Hirosaki University, Hirosaki, Japan,Department of Human Ecology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan,*Correspondence: Kyi Mar Wai ✉
| | - Thinzar Swe
- Pre-clinical Department, University of Medicine 2, Yangon, Myanmar
| | - Maw Thoe Myar
- Pre-clinical Department, University of Medicine Taunggyi, Taunggyi, Myanmar
| | - Cindy Rahman Aisyah
- Department of Human Ecology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
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Niemann D, Akinjobi Z, Jeon S, Rahman HH. Arsenic exposure and prevalence of human papillomavirus in the US male population. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:1263-1275. [PMID: 35915301 DOI: 10.1007/s11356-022-22306-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/05/2022] [Accepted: 07/26/2022] [Indexed: 06/15/2023]
Abstract
Arsenic is a known carcinogen and is naturally available in earth's crust. Inorganic arsenic is an environmental pollutant with immunosuppressive properties. Human papillomavirus (HPV) is considered one of the most common sexually transmitted diseases in the United States. HPV is linked to several types of cancers in males, including oral, anal, and penile cancer. However, limited information is available on the effect of arsenic on HPV in males. The purpose of this study was to examine the association of urinary arsenic species (speciated and total) and the prevalence of HPV infection in the male population. HPV prevalence in males was analyzed using the 2013-2014 and 2015-2016 National Health and Nutrition Examination Survey (NHANES) dataset. Logistic regression analysis was used to examine associations of seven types of urinary arsenic species (arsenous acid, arsenic acid, arsenobetaine, arsenocholine, dimethylarsinic acid (DMA), monomethylarsonic acid (MMA), total arsenic acid) with HPV risk for male participants aged 18-59 years (N = 1516). Demographic characteristics were included in the logistic regression model for each arsenic variable. All statistical analyses were conducted by using the software R (version 4.2.0). Increasing DMA was positively associated with the prevalence of low-risk HPV (odds ratio (OR): 1.075, 95% confidence interval (CI): 1.025, 1.128) in addition to the sum of total toxic arsenic species (TUA1) including arsenous acid, arsenic acid, DMA, and MMA (OR: 1.068, 95% CI: 1.022, 1.116). High-risk HPV strains were found to be positively associated with arsenic acid (OR: 1.806, 95% CI: 1.134, 2.876) and total arsenic minus the sum of the two organic arsenic species arsenobetaine and arsenocholine (TUA2) at quartile 3 (Q3) level (OR: 1.523, 95% CI: 1.102, 2.103). The logistic regression models also showed that race and marital status were significant factors related to high-risk HPV. Our study reported that DMA and TUA1 are associated with low-risk HPV and arsenic acid is associated with high-risk HPV infections in males. Future research is required to confirm or refute this finding.
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Affiliation(s)
- Danielle Niemann
- Burrell College of Osteopathic Medicine, 3501 Arrowhead Dr, Las Cruces, NM, 88003, USA
| | - Zainab Akinjobi
- Department of Economics, Applied Statistics & International Business, New Mexico State University, Las Cruces, NM, 88003, USA
| | - Soyoung Jeon
- Department of Economics, Applied Statistics & International Business, New Mexico State University, Las Cruces, NM, 88003, USA
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Kim S, White SM, Radke EG, Dean JL. Harmonization of transcriptomic and methylomic analysis in environmental epidemiology studies for potential application in chemical risk assessment. ENVIRONMENT INTERNATIONAL 2022; 164:107278. [PMID: 35537365 DOI: 10.1016/j.envint.2022.107278] [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: 03/03/2022] [Revised: 04/27/2022] [Accepted: 05/02/2022] [Indexed: 06/14/2023]
Abstract
Recent efforts have posited the utility of transcriptomic-based approaches to understand chemical-related perturbations in the context of human health risk assessment. Epigenetic modification (e.g., DNA methylation) can influence gene expression changes and is known to occur as a molecular response to some chemical exposures. Characterization of these methylation events is critical to understand the molecular consequences of chemical exposures. In this context, a novel workflow was developed to interrogate publicly available epidemiological transcriptomic and methylomic data to identify relevant pathway level changes in response to chemical exposure, using inorganic arsenic as a case study. Gene Set Enrichment Analysis (GSEA) was used to identify causal methylation events that result in concomitant downstream transcriptional deregulation. This analysis demonstrated an unequal distribution of differentially methylated regions across the human genome. After mapping these events to known genes, significant enrichment of a subset of these pathways suggested that arsenic-mediated methylation may be both specific and non-specific. Parallel GSEA performed on matched transcriptomic samples determined that a substantially reduced subset of these pathways are enriched and that not all chemically-induced methylation results in a downstream alteration in gene expression. The resulting pathways were found to be representative of well-established molecular events known to occur in response to arsenic exposure. The harmonization of enriched transcriptional patterns with those identified from the methylomic platform promoted the characterization of plausibly causal molecular signaling events. The workflow described here enables significant gene and methylation-specific pathways to be identified from whole blood samples of individuals exposed to environmentally relevant chemical levels. As future efforts solidify specific causal relationships between these molecular events and relevant apical endpoints, this novel workflow could aid risk assessments by identifying molecular targets serving as biomarkers of hazard, informing mechanistic understanding, and characterizing dose ranges that promote relevant molecular/epigenetic signaling events occuring in response to chemical exposures.
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Affiliation(s)
- Stephanie Kim
- Superfund and Emergency Management Division, Region 2, U.S. Environmental Protection Agency, NY, USA.
| | - Shana M White
- Chemical and Pollutant Assessment Division, Center for Public Health and Environmental Assessment, U.S. Environmental Protection Agency, Cincinnati, USA.
| | - Elizabeth G Radke
- Chemical and Pollutant Assessment Division, Center for Public Health and Environmental Assessment, U.S. Environmental Protection Agency, D.C., USA.
| | - Jeffry L Dean
- Chemical and Pollutant Assessment Division, Center for Public Health and Environmental Assessment, U.S. Environmental Protection Agency, Cincinnati, USA.
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Nail AN, McCaffrey LM, Banerjee M, Ferragut Cardoso AP, States JC. Chronic arsenic exposure suppresses ATM pathway activation in human keratinocytes. Toxicol Appl Pharmacol 2022; 446:116042. [DOI: 10.1016/j.taap.2022.116042] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Revised: 04/19/2022] [Accepted: 04/27/2022] [Indexed: 01/15/2023]
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Cetinkaya AY, Kuzu SL, Bilgili L. Development of an MFC-biosensor for determination of Pb +2: an assessment from computational fluid dynamics and life cycle assessment perspectives. ENVIRONMENTAL MONITORING AND ASSESSMENT 2022; 194:245. [PMID: 35246745 DOI: 10.1007/s10661-022-09894-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/24/2021] [Accepted: 02/25/2022] [Indexed: 06/14/2023]
Abstract
Microbial fuel cell (MFC)-based biosensor sensing has emerged as an innovative approach to in situ and immediate monitoring of substrate concentration. MFC-biosensor uses bioanode as a sensing element. In this study, the performance of MFC-biosensor, operated with Pb+2, was studied at different hydraulic retention times (HRTs). The HRT ranges were 0.5, 1, and 2 days. The power density generation increased with the decreasing HRT. The highest achievable power density was obtained at HRT of 1 days with the density value of 597 mW/m2. The power density produced in the MFC system was stored in the energy storage system. The computational fluid dynamics (CFD) method simulates detailed three-dimensional flow and heat transfer properties in reactors and provides information about potential reactor design. CFD was chosen to simulate the concentration distribution of the substrate in the MFC in different reactor type and different HRTs. It was observed that there was good turbulence in the reactor in a two day HRT and the reactor volume was used effectively. Life cycle assessment (LCA) was performed at 1 day with the highest power density. An LCA was implemented to the production and operation processes of a microbial fuel cell. According to the results, these two processes caused 4.23 × 10-6 loss of healthy years, extinction of 1.3 × 10-8 species in a year and loss of $ 0.33 source availability. The emissions to air, water, and soil were also calculated. These results showed that MFC-biosensor provided information on the rate of biodegradation processes.
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Affiliation(s)
- Afsin Y Cetinkaya
- Faculty Environmental Engineering Department, Yildiz Technical University Civil Engineering, Istanbul, Turkey.
| | - S Levent Kuzu
- Faculty Environmental Engineering Department, Yildiz Technical University Civil Engineering, Istanbul, Turkey
| | - Levent Bilgili
- Maritime Faculty, Department of Naval Architecture and Marine Engineering, Bandirma Onyedi Eylul University, Bandırma, Balıkesir, Turkey
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Domincova Bergerova E, Kimmer D, Kovarova M, Lovecka L, Vincent I, Adamec V, Kobolova K, Sedlarik V. Investigation of arsenic removal from aqueous solution through selective sorption and nanofiber-based filters. JOURNAL OF ENVIRONMENTAL HEALTH SCIENCE & ENGINEERING 2021; 19:1347-1360. [PMID: 34900271 PMCID: PMC8617137 DOI: 10.1007/s40201-021-00691-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2019] [Accepted: 06/08/2021] [Indexed: 06/14/2023]
Abstract
BACKGROUND This research paper focuses on removing of arsenic from contaminated water via a nanofibrous polymeric microfiltration membrane, applied in prospective combination with an inorganic sorbent based on iron oxide hydroxide FeO(OH). MATERIALS AND METHODS Nanofibrous materials were prepared by electrospinning from polyurethane selected by an adsorption test. The chemical composition (FTIR), morphology (SEM, porometry) and hydrophilicity (contact angle) of the prepared nanostructured material were characterized. The process of eliminating arsenic from the contaminated water was monitored by atomic absorption spectroscopy (AAS). The adsorption efficiency of the nanofibrous material and the combination with FeO(OH) was determined, the level of arsenic anchorage on the adsorption filter was assessed by a rinsing test and the selectivity of adsorption in arsenic contaminated mineral water was examined. RESULTS It was confirmed that the hydrophilic aromatic polyurethane of ester type PU918 is capable of capturing arsenic by complexation on nitrogen in its polymer chains. The maximum As removal efficiency was around 62 %. Arsenic was tightly anchored to the polymeric adsorbent. The adsorption process was sufficiently selective. Furthermore, it was found that the addition of even a small amount of FeO(OH) (0.5 g) to the nanofiber filter would increase the efficiency of As removal by 30 %. CONCLUSIONS The presented results showed that an adsorption filter based on a polyurethane nanostructured membrane added with an inorganic adsorbent FeO(OH) is a suitable way for the elimination of arsenic from water. However, it is necessary to ensure perfect contact between the surface of the nanostructure and the filtered medium.
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Affiliation(s)
| | - Dusan Kimmer
- Centre of Polymer Systems, Tomas Bata University in Zlin, Zlin, 760 01 Czech Republic
| | - Miroslava Kovarova
- Centre of Polymer Systems, Tomas Bata University in Zlin, Zlin, 760 01 Czech Republic
| | - Lenka Lovecka
- Centre of Polymer Systems, Tomas Bata University in Zlin, Zlin, 760 01 Czech Republic
| | - Ivo Vincent
- Centre of Polymer Systems, Tomas Bata University in Zlin, Zlin, 760 01 Czech Republic
| | - Vladimir Adamec
- Institute of Forensic Engineering, Brno University of Technology, 601 90 Brno, Czech Republic
| | - Klaudia Kobolova
- Institute of Forensic Engineering, Brno University of Technology, 601 90 Brno, Czech Republic
| | - Vladimir Sedlarik
- Centre of Polymer Systems, Tomas Bata University in Zlin, Zlin, 760 01 Czech Republic
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Crosstalk between Environmental Inflammatory Stimuli and Non-Coding RNA in Cancer Occurrence and Development. Cancers (Basel) 2021; 13:cancers13174436. [PMID: 34503246 PMCID: PMC8430834 DOI: 10.3390/cancers13174436] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2021] [Revised: 08/20/2021] [Accepted: 08/31/2021] [Indexed: 12/12/2022] Open
Abstract
Simple Summary Increasing evidence has indicated that chronic inflammatory processes have an influence on tumor occurrence and all stages of tumor development. A dramatic increase of studies into non-coding RNAs (ncRNAs) biology has shown that ncRNAs act as oncogenic drivers and tumor suppressors in various inflammation-induced cancers. Thus, this complex network of inflammation-associated cancers and ncRNAs offers targets for prevention from the malignant transformation from inflammation and treatment of malignant diseases. Abstract There is a clear relationship between inflammatory response and different stages of tumor development. Common inflammation-related carcinogens include viruses, bacteria, and environmental mutagens, such as air pollutants, toxic metals, and ultraviolet light. The expression pattern of ncRNA changes in a variety of disease conditions, including inflammation and cancer. Non-coding RNAs (ncRNAs) have a causative role in enhancing inflammatory stimulation and evading immune responses, which are particularly important in persistent pathogen infection and inflammation-to-cancer transformation. In this review, we investigated the mechanism of ncRNA expression imbalance in inflammation-related cancers. A better understanding of the function of inflammation-associated ncRNAs may help to reveal the potential of ncRNAs as a new therapeutic strategy.
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Qian Q, Chen Y, Wang JQ, Yang DQ, Jiang C, Sun J, Dong J, Li GC. Use of the alkaline comet assay for monitoring genotoxic effects of arsenic in human populations. MUTATION RESEARCH-GENETIC TOXICOLOGY AND ENVIRONMENTAL MUTAGENESIS 2021; 867:503368. [PMID: 34266624 DOI: 10.1016/j.mrgentox.2021.503368] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2020] [Revised: 05/20/2021] [Accepted: 05/28/2021] [Indexed: 10/21/2022]
Abstract
The alkaline comet assay has been widely used to determine genotoxicity in human populations exposed to arsenic. The sample sizes of earlier studies were usually small, and inconsistent results were found. Meta-analyses can merge the results of multiple studies of the same type and increase the credibility of the conclusion by increasing the sample size. Thus, to investigate the monitoring effect of alkaline comet assay on genotoxicity for arsenic exposed population, meta-analyses were performed. Thirteen studies were found to meet the inclusion criteria and were included in this study; of them, twelve articles were of medium quality (15-20 points), only one study was of high quality (21-27 points). Meta-analyses showed that the overall estimates of Mean Ratio (MR, defined as the mean value of the response in the exposed group divided by that in the reference group) were 2.81(95 % confidence interval (CI) 1.93-4.10); 2.37(95 % CI, 1.73-3.26), and 1.69(95 %CI, 1.29-2.20) for comet tail length, % tail DNA, and tail moment, respectively. This shows that the level of DNA damage in arsenic exposed population is significantly higher than that in control populations. A meta-analysis of the correlation coefficients showed that the overall estimate was 0.52 (95 %CI, 0.48∼0.56, P<0.05) with all correlation coefficients included, but it changed to 0.24 (95 %CI, 0.17∼0.28, P<0.05) when two abnormal correlation coefficients were excluded, suggesting there was a positive correlation between arsenic load in vivo and DNA damage, but the overall estimate value of coefficients was unstable. Therefore, we conclude that the alkaline comet assay can be used as an effective genotoxic biomonitoring tool for arsenic-exposed populations. However, more and higher-quality studies are still needed to verify its actual application value.
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Affiliation(s)
- Qin Qian
- School of Medicine & Holistic Integrative Medicine, Nanjing University of Chinese Medicine, 210023, Nanjing, China
| | - Yang Chen
- School of Medicine & Holistic Integrative Medicine, Nanjing University of Chinese Medicine, 210023, Nanjing, China
| | - Jun-Qin Wang
- School of Medicine & Holistic Integrative Medicine, Nanjing University of Chinese Medicine, 210023, Nanjing, China
| | - Dong-Qing Yang
- School of Medicine & Holistic Integrative Medicine, Nanjing University of Chinese Medicine, 210023, Nanjing, China
| | - Chao Jiang
- School of Medicine & Holistic Integrative Medicine, Nanjing University of Chinese Medicine, 210023, Nanjing, China
| | - Jin Sun
- School of Medicine & Holistic Integrative Medicine, Nanjing University of Chinese Medicine, 210023, Nanjing, China
| | - Ju Dong
- School of Medicine & Holistic Integrative Medicine, Nanjing University of Chinese Medicine, 210023, Nanjing, China.
| | - Guo-Chun Li
- School of Medicine & Holistic Integrative Medicine, Nanjing University of Chinese Medicine, 210023, Nanjing, China.
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Zhang W, Xiong H, Zhang J, Wang WX. Transfer and bioavailability of inorganic and organic arsenic in sediment-water-biota microcosm. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2021; 232:105763. [PMID: 33535133 DOI: 10.1016/j.aquatox.2021.105763] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/19/2020] [Revised: 01/16/2021] [Accepted: 01/19/2021] [Indexed: 06/12/2023]
Abstract
Arsenic (As) contamination in the sediments has received increasing attention, but its transfer and bioavailability to benthic infauna remain much less well known. In the present study, we deployed the diffusive gradients in thin films (DGT) to quantify the different As speciation in the overlying water and porewater, and assessed the exposure pathway, transfer and bioavailability of different As species in an infaunal clam Sinonovacula constricta. We demonstrated a very dynamic transformation and exposure of As in the sediment-water-clam microcosm. In such microcosm, arsenite [As(III)] in the overlying water, pore water and sediments was almost oxidized to arsenate [As(V)]. Conversely, the accumulated As(V) in the clams was reduced to As(III), followed by methylation to dimethylarsinic acid (DMA), whereas the overall conversion of toxic inorganic As species to less-toxic arsenobetaine (AsB) was much poor in the clams. Moreover, biotransformation depended on the As accumulation level. As(III) was the predominant As species in the control and the Low As treatment clam, whereas DMA was the predominant As species in the High As treatment clam. Significant and positive correlations were found between As(V) concentrations in the clams and those in DGT-labile As in overlying water/pore water, as well as between the DMA and As(V) concentrations in the clams and those in the sediment. DMA and As(V) in the sediments was much more bioavailable to the clams than inorganic As [As(III)] and AsB. Moreover, As(III) and As(V) in the overlying water and pore water, as well as DMA and As(V) in the sediments displayed high migration ability. Coupled DGT technology and biotransformation study therefore suggested that metabolism of ingested As species as well as ingestion and retention of DMA resulted in high DMA bioaccumulation in clams.
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Affiliation(s)
- Wei Zhang
- Institute of Environmental Research at Greater Bay Area, Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Guangzhou University, Guangzhou, 510006, China
| | - Haiyan Xiong
- Institute of Environmental Research at Greater Bay Area, Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Guangzhou University, Guangzhou, 510006, China
| | - Jichao Zhang
- Institute of Environmental Research at Greater Bay Area, Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Guangzhou University, Guangzhou, 510006, China
| | - Wen-Xiong Wang
- School of Energy and Environment, Hong Kong Branch of the Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), State Key Laboratory of Marine Pollution, City University of Hong Kong, Kowloon, Hong Kong, China; Research Centre for the Oceans and Human Health, City University of Hong Kong Shenzhen Research Institute, Shenzhen, 518057, China.
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Kim D, Bahmani R, Modareszadeh M, Hwang S. Mechanism for Higher Tolerance to and Lower Accumulation of Arsenite in NtCyc07-Overexpressing Tobacco. PLANTS 2020; 9:plants9111480. [PMID: 33153165 PMCID: PMC7692962 DOI: 10.3390/plants9111480] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/12/2020] [Revised: 10/30/2020] [Accepted: 10/30/2020] [Indexed: 01/24/2023]
Abstract
Arsenite [As(III)] is a highly toxic chemical to all organisms. Previously, we reported that the overexpression of NtCyc07 enhanced As(III) tolerance and reduced As(III) accumulation in yeast (Saccharomyces cerevisiae) and tobacco (Nicotiana tabacum). To understand a mechanism for higher As(III) tolerance and lower As(III) accumulation in NtCyc07-overexpressing tobacco, we examined the expression levels of various putative As(III) transporters (aquaporin). The expressions of putative As(III) exporter NIP1;1, PIP1;1, 1;5, 2;1, 2;2, and 2;7 were enhanced, while the expressions of putative As(III) importer NIP3;1, 4;1, and XIP2;1 were decreased, contributing to the reduced accumulation of As(III) in NtCyc07-overexpressing tobacco. In addition, the levels of oxidative stress indicators (H2O2, superoxide and malondialdehyde) were lower, and the activities of antioxidant enzymes (catalase, superoxide dismutase and glutathione reductase) were higher in NtCyc07-tobacco than in the control tobacco. This suggests that the lower oxidative stress in transgenic tobacco may be attributed to the higher activities of antioxidant enzymes and lower As(III) levels. Taken together, the overexpression of NtCyc07 enhances As(III) tolerance by reducing As(III) accumulation through modulation of expressions of putative As(III) transporters in tobacco.
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Arsenic hampered embryonic development: An in vivo study using local Bangladeshi Danio rerio model. Toxicol Rep 2020; 7:155-161. [PMID: 31993334 PMCID: PMC6976906 DOI: 10.1016/j.toxrep.2019.12.009] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2019] [Revised: 10/23/2019] [Accepted: 12/29/2019] [Indexed: 11/20/2022] Open
Abstract
Exposure to arsenic results delayed and deformed embryonic development. Arsenic exposure increased the mortality rate of embryos. Arsenic exposure may increase miscarriage or abortion rate in the pregnant mother.
Zebrafish (Danio rerio) has appeared as a valuable and popular model species to study the developmental and toxicological impact of environmental pollutants. To get insights on the toxicological effect of arsenic on early embryonic development, a controlled breeding of local Bangladeshi zebrafish followed by comprehensive microscopic analysis was conducted to study the embryonic development after exposure to different concentrations of arsenic ranges from 4−120 h post-fertilization. Zebrafish embryos exposed to 2 mM of arsenic displayed distinguishable developmental delay compared to control. At three days post-fertilization, a distinct phenotype appears in arsenic-treated embryos, which can be characterized by dechorionated embryos, larger egg mass, pericardial edema, abnormal heart rate, and abnormal head development. Remarkably, the death rate of the arsenic-treated embryos was significantly higher compared to control. Collectively, these findings indicate that exposure to arsenic may result in abnormal embryonic development. These results suggest for proper management of the pregnant mother in the arsenic-exposed area, and may also explain the incidence of increased miscarriage/abortion rate in arsenic water drinking pregnant mother.
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Fang X, Sun R, Hu Y, Wang H, Guo Y, Yang B, Pi J, Xu Y. miRNA-182-5p, via HIF2α, contributes to arsenic carcinogenesis: evidence from human renal epithelial cells. Metallomics 2019; 10:1607-1617. [PMID: 30334557 DOI: 10.1039/c8mt00251g] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Chronic exposure to high levels of arsenic has been associated with high risks for many cancers, including renal cell carcinoma (RCC). However the underlying mechanisms are not clear. In the present study, chronic arsenite exposure (2 μM or 5 μM, 30 weeks) induced malignant transformation of HK-2 human renal epithelial cells as indicated by elevated colony formation (6.2- and 5.4-fold increase, respectively), secreted MMP-9 activity (10.1- and 11.3-fold increase, respectively) and proliferation rate (1.2- and 1.3-fold increase in 72 h, respectively). Lipid accumulation, typical of clear cell RCC, was observed in arsenic-transformed (As-TM) cells. Overexpression of hypoxia-inducible factor 2α (HIF2α) and suppression of carnitine palmitoyltransferase 1A (CPT1A) were found at the level of mRNA (1.5- and 0.49-fold of control, respectively) and protein (4.0- and 0.28-fold of control, respectively) after exposure to 2 μM arsenite for 20 weeks. Silencing of HIF2α significantly attenuated arsenite-induced malignant phenotypes and lipid accumulation. Inactivation of Von Hippel-Lindau (VHL) and impaired protein degradation of HIF2α were not found in As-TM cells. Expression of miR-182-5p and miR-802 in As-TM cells was 42.4% and 54.0% of control, respectively (p < 0.05). The levels of mRNA and protein of HIF2α were increased 2.4 folds and 1.6 folds of negative control in response to the miR-182-5p inhibitor, respectively, but decreased to 58.1% and 50.1% of negative control in response to miR-182-5p mimics, respectively. No significant alteration was observed in HIF2α expression when miR-802 was silenced. Our data provide further evidence for the carcinogenic role of arsenic in the kidney. Moreover, the miR-182-5p/HIF2α pathway is indicated to be involved in malignant transformation of human renal epithelial cells under arsenite exposure.
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Affiliation(s)
- Xin Fang
- School of Public Health, China Medical University, No. 77 Puhe Road, Shenbei New District, Shenyang, Liaoning, P. R. China110122.
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14
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Kaushal S, Ahsan AU, Sharma VL, Chopra M. Epigallocatechin gallate attenuates arsenic induced genotoxicity via regulation of oxidative stress in balb/C mice. Mol Biol Rep 2019; 46:5355-5369. [PMID: 31350662 DOI: 10.1007/s11033-019-04991-5] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2019] [Accepted: 07/19/2019] [Indexed: 12/23/2022]
Abstract
Arsenic is well known genotoxicant which causes the excessive generation of reactive oxygen species (ROS) and inhibition of antioxidant enzyme systems leading to cell damage through the activation of oxidative sensitive signaling pathways. Epigallocatechin gallate (EGCG), the main and active polyphenolic catechin present in green tea, has shown potent antioxidant, free radical scavenging and genoprotective activity in vivo. The present study attempted to investigate antioxidant and geno-protective efficacy of EGCG by regulating arsenic induced oxidative stress in mice. Animals received prophylactic and therapeutic treatments at two different doses (25 and 50 mg/kg b.wt.) of EGCG orally for 15 days and administered arsenic intraperitoneally at dose of 1.5 mg/kg b.wt (1/10th of LD50) for 10 days. Arsenic intoxication revealed enhanced ROS production (114%) in lymphocytes; elevated levels of LPO (2-4 fold); reduced levels of hepato-renal antioxidants (approx. 45%) and augmented genomic fragmentation in hepato-renal tissues; increased chromosomal anomalies (78%) and micronucleation (21.93%) in bone marrow cells and comet tailing (25%) in lymphocytes of mice. Both pre and post treatments of EGCG decreased ROS production, restored lipid peroxidation (LPO) and reduced hepato-renal antioxidants levels, reduced the DNA fragmentation, number of chromosomal aberrations (CA), micronucleation (MN), and comet tailing but prophylactic treatment of 50 mg/kg b.wt was the most effective treatment in regulating arsenic induced oxidative stress. The effectiveness of this dose was furthermore validated by calculating the inhibitory index. Thus, results of present work empirically demonstrate free radical scavenging, anti-oxidative and genoprotective efficacy of EGCG against arsenic toxicity.
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Affiliation(s)
- Surbhi Kaushal
- Department of Zoology, Panjab University, Chandigarh, India
| | | | | | - Mani Chopra
- Department of Zoology, Panjab University, Chandigarh, India.
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15
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Zhang W, Guo Z, Wu Y, Qiao Y, Zhang L. Arsenic Bioaccumulation and Biotransformation in Clams (Asaphis violascens) Exposed to Inorganic Arsenic: Effects of Species and Concentrations. BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2019; 103:114-119. [PMID: 30478612 DOI: 10.1007/s00128-018-2493-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/15/2018] [Accepted: 11/07/2018] [Indexed: 06/09/2023]
Abstract
High arsenic (As) concentrations are found in marine clams, usually as less-toxic arsenobetaine (AsB). However, when clams were exposed to elevated As concentrations in the environments, As species distribution within them may be altered. This study aimed to determine As bioaccumulation and biotransformation in marine clams (Asaphis violascens) along As concentration gradients for 10 days. Nine treatments of dissolved As exposure [control, 1, 3 (low), 10, 20 (high) mg/L As(III) and As(V)] were performed. Clams could biotransform low-levels of inorganic As efficiently, while they had lower biotransformation efficiencies when exposed to high As concentrations. AsB decreased with increasing As(III) and As(V) concentrations, while dimethylarsinic acid exhibited as a predominant As species in 3 mg/L exposure treatments. These results suggested that As methylation, synthesis and/or degradation of AsB should be affected by exposure concentrations. Therefore, these toxic As species within clams may cause a potential toxicological hazard to human beings.
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Affiliation(s)
- Wei Zhang
- Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Institute of Environmental Research at Greater Bay, Guangzhou University, Guangzhou, 510006, China
| | - Zhiqiang Guo
- State Key Laboratory of Marine Resource Utilization in South China Sea, College of Oceanology, Hainan University, Haikou, 570228, China
| | - Yun Wu
- Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, School of Environmental Science and Engineering, Nanjing University of Information Science & Technology, Nanjing, 210044, China
| | - Yanlong Qiao
- School of Environmental Science and Engineering, Tianjin University, Tianjin, 300072, China
| | - Li Zhang
- Key Laboratory of Tropical Marine Bio-resources and Ecology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, 510301, China.
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16
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Chaufan G, Galvano C, Nieves M, Mudry MD, Ríos de Molina MDC, Andrioli NB. Oxidative Response and Micronucleus Centromere Assay in HEp-2 Cells Exposed to Fungicide Iprodione. Chem Res Toxicol 2019; 32:745-752. [DOI: 10.1021/acs.chemrestox.8b00405] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Gabriela Chaufan
- Laboratorio de Enzimología Estrés y Metabolismo, Departamento de Química Biológica, Facultad de Ciencias Exactas y Naturales, Consejo de Investigaciones Científicas y Técnicas, Universidad de Buenos Aires (IQUIBICEN-CONICET), Ciudad Universitaria, Pabellón II, 4° Piso Laboratories. 43-46, C1428EGA Buenos Aires, Argentina
- Consejo Nacional de Investigaciones Cientificas y Técnicas, Universidad de Buenos Aires, C1428EGA Buenos Aires, Argentina
| | - Camila Galvano
- GIBE (Grupo de Investigación en Biología Evolutiva), FCEyN-UBA, Facultad de Ciencias Exactas y Naturales, Instituto de Ecología, Genética y Evolución de Buenos Aires - Consejo de Investigaciones Científicas y Técnicas), Universidad de Buenos Aires (IEGEBA−CONICET), Ciudad Universitaria, Pabellón II, 4° Piso Laboratories. 43-46, C1428EGA Buenos Aires, Argentina
| | - Mariela Nieves
- GIBE (Grupo de Investigación en Biología Evolutiva), FCEyN-UBA, Facultad de Ciencias Exactas y Naturales, Instituto de Ecología, Genética y Evolución de Buenos Aires - Consejo de Investigaciones Científicas y Técnicas), Universidad de Buenos Aires (IEGEBA−CONICET), Ciudad Universitaria, Pabellón II, 4° Piso Laboratories. 43-46, C1428EGA Buenos Aires, Argentina
- Consejo Nacional de Investigaciones Cientificas y Técnicas, Universidad de Buenos Aires, C1428EGA Buenos Aires, Argentina
| | - Marta D. Mudry
- GIBE (Grupo de Investigación en Biología Evolutiva), FCEyN-UBA, Facultad de Ciencias Exactas y Naturales, Instituto de Ecología, Genética y Evolución de Buenos Aires - Consejo de Investigaciones Científicas y Técnicas), Universidad de Buenos Aires (IEGEBA−CONICET), Ciudad Universitaria, Pabellón II, 4° Piso Laboratories. 43-46, C1428EGA Buenos Aires, Argentina
- Consejo Nacional de Investigaciones Cientificas y Técnicas, Universidad de Buenos Aires, C1428EGA Buenos Aires, Argentina
| | - Maria del Carmen Ríos de Molina
- Laboratorio de Enzimología Estrés y Metabolismo, Departamento de Química Biológica, Facultad de Ciencias Exactas y Naturales, Consejo de Investigaciones Científicas y Técnicas, Universidad de Buenos Aires (IQUIBICEN-CONICET), Ciudad Universitaria, Pabellón II, 4° Piso Laboratories. 43-46, C1428EGA Buenos Aires, Argentina
- Consejo Nacional de Investigaciones Cientificas y Técnicas, Universidad de Buenos Aires, C1428EGA Buenos Aires, Argentina
| | - Nancy B. Andrioli
- GIBE (Grupo de Investigación en Biología Evolutiva), FCEyN-UBA, Facultad de Ciencias Exactas y Naturales, Instituto de Ecología, Genética y Evolución de Buenos Aires - Consejo de Investigaciones Científicas y Técnicas), Universidad de Buenos Aires (IEGEBA−CONICET), Ciudad Universitaria, Pabellón II, 4° Piso Laboratories. 43-46, C1428EGA Buenos Aires, Argentina
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17
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Wai KM, Umezaki M, Kosaka S, Mar O, Umemura M, Fillman T, Watanabe C. Impact of prenatal heavy metal exposure on newborn leucocyte telomere length: A birth-cohort study. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2018; 243:1414-1421. [PMID: 30278415 DOI: 10.1016/j.envpol.2018.09.090] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/01/2018] [Revised: 08/29/2018] [Accepted: 09/18/2018] [Indexed: 06/08/2023]
Abstract
Arsenic, cadmium and lead are toxic environmental contaminants. They were shown to be associated with telomere length (TL) in adults. Although they can cross the placental barrier, the effect of prenatal exposure of these metals on newborn TL is unknown. The aim of this study was to examine whether prenatal exposure to heavy metals has an impact on newborn leucocyte TL. A birth-cohort study was conducted with 409 pregnant women and their newborns in Myanmar. During the first visit, face-to-face interviews were conducted, and maternal spot urine sampling was performed. Cord blood samples were collected during follow-up. Urinary heavy metal concentration was measured by ICP-MS and adjusted for creatinine. Relative TL was measured by quantitative real-time polymerase chain reaction. The extent of prenatal arsenic, cadmium and lead exposure and their associations with newborn leucocyte TL were assessed using multivariate linear regression. The median values of maternal urinary arsenic, cadmium, and lead concentrations were 73.9, 0.9, and 1.8 μg/g creatinine, respectively. Prenatal arsenic and cadmium exposure was significantly associated with newborn TL shortening (lowest vs highest quartile, coefficient = - 0.13, 95% CI: - 0.22, - 0.03, p = 0.002, and coefficient = - 0.17, 95% CI: - 0.27, - 0.07, p = 0.001, respectively), and the associations remained robust after adjusting for confounders. There was no significant association between prenatal lead exposure and newborn TL. The present study identified the effect of arsenic and cadmium exposure on TL shortening, even in utero exposure at a lower concentration.
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Affiliation(s)
- Kyi Mar Wai
- Department of Human Ecology, School of International Health, Graduate School of Medicine, The University of Tokyo, Japan.
| | - Masahiro Umezaki
- Department of Human Ecology, School of International Health, Graduate School of Medicine, The University of Tokyo, Japan
| | - Satoko Kosaka
- Department of Human Ecology, School of International Health, Graduate School of Medicine, The University of Tokyo, Japan
| | - Ohn Mar
- Department of Physiology, The University of Medicine (1), Yangon, Myanmar
| | - Mitsutoshi Umemura
- Hokkaido Research Center, Forestry and Forest Products Research Institute, Forest Research and Management Organization, Sapporo, Japan
| | - Toki Fillman
- Department of Human Ecology, School of International Health, Graduate School of Medicine, The University of Tokyo, Japan
| | - Chiho Watanabe
- Department of Human Ecology, School of International Health, Graduate School of Medicine, The University of Tokyo, Japan; National Institute for Environmental Studies, Japan
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18
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Gupta K, Mishra K, Srivastava S, Kumar A. Cytotoxic Assessment of Chromium and Arsenic Using Chromosomal Behavior of Root Meristem in Allium cepa L. BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2018; 100:803-808. [PMID: 29704021 DOI: 10.1007/s00128-018-2344-2] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/22/2018] [Accepted: 04/24/2018] [Indexed: 06/08/2023]
Abstract
A study was performed for phyto-genotoxic assay of chromium (Cr) and arsenic (As) through Allium cepa. Various concentrations (0, 1, 3, 6 and 12 mg L-1) of Cr and As for 48 and 168 h time points exposed to A. cepa. The phytotoxic effects of metal(loid) were evident through inhibited root length and root protein. Metal(loid) toxicity also lead to genotoxic effects, which included depression of mitotic index and increased frequency of chromosomes aberrations like break, fragments, c-metaphase, multipolar arrangements etc. Genotoxic endpoint as progressive frequency of micronuclei in interphase of root meristem cells in treated plants was also observed. This genotoxic endpoint revealed carcinogenic nature of both aforementioned metal(loid). Along with inhibition in root length and protein content, depression in mitotic index as well as stimulation of various abnormality in mitotic cell division indicated that both metal(loid) are hazardous in nature and causing harmful effect on the environment.
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Affiliation(s)
- Kiran Gupta
- Plant Genetic Unit, Department of Botany, University of Lucknow, Lucknow, 226007, India
| | - Kumkum Mishra
- Plant Genetic Unit, Department of Botany, University of Lucknow, Lucknow, 226007, India
| | - Sudhakar Srivastava
- Institute of Environment and Sustainable Development, Banaras Hindu University, Varanasi, 221005, India
| | - Amit Kumar
- Plant Genetic Unit, Department of Botany, University of Lucknow, Lucknow, 226007, India.
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19
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Rencüzoğulları E, Aydın M. Genotoxic and mutagenic studies of teratogens in developing rat and mouse. Drug Chem Toxicol 2018; 42:409-429. [PMID: 29745766 DOI: 10.1080/01480545.2018.1465950] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
In this review, genotoxic and mutagenic effects of teratogenic chemical agents in both rat and mouse have been reviewed. Of these chemicals, 97 are drugs and 33 are pesticides or belong to other groups. Large literature searches were conducted to determine the effects of chemicals on chromosome abnormalities, sister chromatid exchanges, and micronucleus formation in experimental animals such as rats and mice. In addition, studies that include unscheduled DNA synthesis, DNA adduct formations, and gene mutations, which help to determine the genotoxicity or mutagenicity of chemicals, have been reviewed. It has been estimated that 46.87% of teratogenic drugs and 48.48% of teratogenic pesticides are positive in all tests. So, all of the teratogens involved in this group have genotoxic and mutagenic effects. On the other hand, 36.45% of the drugs and 21.21% of the pesticides have been found to give negative results in at least one test, with the majority of the tests giving positive results. However, only 4.16% of the drugs and 18.18% of the pesticides were determined to give negative results in the majority of the tests. Among tests with major negative results, 12.50% of the teratogenic drugs and 12.12% of the teratogenic pesticides were negative in all conducted tests.
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Affiliation(s)
- Eyyüp Rencüzoğulları
- a Department of Biology, Faculty of Science and Letters , Adiyaman University , Adiyaman , Turkey
| | - Muhsin Aydın
- a Department of Biology, Faculty of Science and Letters , Adiyaman University , Adiyaman , Turkey
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20
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Ojo OA, Ojo AB, Awoyinka O, Ajiboye BO, Oyinloye BE, Osukoya OA, Olayide II, Ibitayo A. Aqueous extract of Carica papaya Linn. roots potentially attenuates arsenic induced biochemical and genotoxic effects in Wistar rats. J Tradit Complement Med 2018; 8:324-334. [PMID: 29736388 PMCID: PMC5934704 DOI: 10.1016/j.jtcme.2017.08.001] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2016] [Revised: 07/07/2017] [Accepted: 08/01/2017] [Indexed: 01/19/2023] Open
Abstract
In Africa, the fruit, leaf, seed and roots of Carica papaya Linn. are generally used to treat a variety of diseases such as malaria, cancer, and cardiovascular diseases. In this study, we evaluated the protective potentials of aqueous extract of C. papaya roots on arsenic-induced biochemical and genotoxic effects in Wistar rats. Rats were induced intraperitoneal with sodium arsenate (dissolved in distilled water at 3 mg/kg body weight) for 21 days and the animals were administered simultaneously with 200 mg/kg body weight vitamin C, 100 and 150 mg/kg body weight of the C. papaya Linn. root aqueous extract once daily for three weeks. Results obtained reveals that activities of plasma 8-OHdG, serum lipids concentration, atherogenic index (AI), coronary artery index (CRI), aspartate transaminase, alanine transaminase, alkaline phosphatase, total bilirubin levels were elevated significantly (p < 0.05) and catalase, glutathione peroxidase, superoxide dismutase, plasma hematological profile were progressively reduced (p < 0.05) in arsenic-alone exposed rats. Significant increase in the quantity of chromosomal aberrations (CA), micronuclei (MN) frequency, oxidative damages in the bone marrow cells from arsenic alone rats was observed. Though, mitotic index scores in these cells were progressively reduced (p < 0.05). In animals administered with aqueous extract of C. papaya roots and vitamin C, the altered parameters were significantly recovered towards the levels observed in normal control rats. These results suggest that aqueous C. papaya roots preparations might have therapeutic potential as a supplement that can be applied in arsenic poisoning.
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Affiliation(s)
- Oluwafemi Adeleke Ojo
- Phytomedicine, Biochemical Toxicology and Diabetes Research Laboratories, Department of Biochemistry, Afe Babalola University, Ado-Ekiti, Ekiti State, Nigeria
- Corresponding author. Department of Chemical Sciences, Biochemistry Unit, Afe Babalola University, Ado-Ekiti, Nigeria.
| | - Adebola Busola Ojo
- Department of Medical Biochemistry, Afe Babalola University, Ado-Ekiti, Ekiti State, Nigeria
| | - Olayinka Awoyinka
- Department of Medical Biochemistry, Faculty of Basic Medical Sciences, Ekiti State University, Ado-Ekiti, Nigeria
| | - Basiru Olaitan Ajiboye
- Phytomedicine, Biochemical Toxicology and Diabetes Research Laboratories, Department of Biochemistry, Afe Babalola University, Ado-Ekiti, Ekiti State, Nigeria
| | - Babatunji Emmanuel Oyinloye
- Phytomedicine, Biochemical Toxicology and Diabetes Research Laboratories, Department of Biochemistry, Afe Babalola University, Ado-Ekiti, Ekiti State, Nigeria
| | - Olukemi Adetutu Osukoya
- Phytomedicine, Biochemical Toxicology and Diabetes Research Laboratories, Department of Biochemistry, Afe Babalola University, Ado-Ekiti, Ekiti State, Nigeria
| | - Israel Idowu Olayide
- Phytomedicine, Biochemical Toxicology and Diabetes Research Laboratories, Department of Biochemistry, Afe Babalola University, Ado-Ekiti, Ekiti State, Nigeria
| | - Adejoke Ibitayo
- Department of Biological Sciences, Afe Babalola University, Ado-Ekiti, Ekiti State, Nigeria
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Arcega-Cabrera F, Fargher L, Quesadas-Rojas M, Moo-Puc R, Oceguera-Vargas I, Noreña-Barroso E, Yáñez-Estrada L, Alvarado J, González L, Pérez-Herrera N, Pérez-Medina S. Environmental Exposure of Children to Toxic Trace Elements (Hg, Cr, As) in an Urban Area of Yucatan, Mexico: Water, Blood, and Urine Levels. BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2018; 100:620-626. [PMID: 29508017 DOI: 10.1007/s00128-018-2306-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2017] [Accepted: 02/26/2018] [Indexed: 06/08/2023]
Abstract
Merida is the largest urban center in the Mexican State of Yucatan. Here domestic sewage is deposited in poorly built septic tanks and is not adequately treated. Because of contamination from such waste, water from the top 20 m of the aquifer is unsuitable for human consumption. Given this situation and because children are highly vulnerable to environmental pollution, including exposure to toxic trace elements, this study focused on evaluating the exposure of children to arsenic (As), chromium (Cr), and mercury (Hg) in water. It also evaluated the relationship between the levels of these elements in water and their concentrations in urine and blood. Among the 33 children monitored in the study, arsenic surpassed WHO limits for blood in 37% of the cases, which could result from the ingestion of poultry contaminated with organoarsenic compounds. In the case of WHO limits for Mercury, 65% of the water samples analyzed, 28% of urine samples, and 12% of blood samples exceeded them. Mercury exposure was correlated with biological sex, some lifestyle factors, and the zone in Merida in which children live. These data suggest that the levels of some toxic metals in children may be affected by water source, socioeconomic factors, and individual behavior.
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Affiliation(s)
- F Arcega-Cabrera
- Unidad de Química Sisal, Facultad de Química, Universidad Nacional Autónoma de México, Puerto de Abrigo Sisal, 97355, Yucatán, Mexico.
- Centro de Investigación y de Estudios Avanzados del IPN-Mérida, km 6 Antigua carretera a Progreso, Cordemex, 97310, Yucatán, Mexico.
| | - L Fargher
- Ecología Humana, CINVESTAV-IPN Mérida, Km 6 Antigua Carretera a Progreso, Mérida, 97310, Yucatán, Mexico
| | - M Quesadas-Rojas
- Unidad de Química Sisal, Facultad de Química, Universidad Nacional Autónoma de México, Puerto de Abrigo Sisal, 97355, Yucatán, Mexico
| | - R Moo-Puc
- Unidad de Investigación Médica Yucatán, Unidad Médica de Alta Especialidad Hospital de Especialidades Centro Médico Nacional "Ignacio García Téllez" Mérida, Instituto Mexicano del Seguro Social (IMSS), Calle 41 No. 439, Col. Industrial, Mérida, 97150, Yucatán, Mexico
| | - I Oceguera-Vargas
- Unidad de Química Sisal, Facultad de Química, Universidad Nacional Autónoma de México, Puerto de Abrigo Sisal, 97355, Yucatán, Mexico
| | - E Noreña-Barroso
- Unidad de Química Sisal, Facultad de Química, Universidad Nacional Autónoma de México, Puerto de Abrigo Sisal, 97355, Yucatán, Mexico
| | - L Yáñez-Estrada
- Laboratorio de Género, Salud y Ambiente, Facultad de Medicina, Universidad Autónoma de San Luis Potosí, San Luis Potosí, 78210, Mexico
| | - J Alvarado
- Facultad de Medicina, Universidad Autónoma de Yucatan, Av Itzaes 498, Mérida, 97100, Yucatán, Mexico
| | - L González
- Facultad de Medicina, Universidad Autónoma de Yucatan, Av Itzaes 498, Mérida, 97100, Yucatán, Mexico
| | - N Pérez-Herrera
- Unidad Interinstitucional de Investigación Clínica y Epidemiológica, Facultad de Medicina, Universidad Autónoma de Yucatán, Av. Itzaes No. 498 x 59-A, Colonia Centro, Mérida, 97000, Yucatán, Mexico
| | - S Pérez-Medina
- Ecología Humana, CINVESTAV-IPN Mérida, Km 6 Antigua Carretera a Progreso, Mérida, 97310, Yucatán, Mexico
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22
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Chiang YH, Lin CC, Chen YC, Lee OK. Treatment of Arsenite Intoxication-Induced Peripheral Vasculopathy with Mesenchymal Stem Cells. Int J Mol Sci 2018; 19:ijms19041026. [PMID: 29596344 PMCID: PMC5979449 DOI: 10.3390/ijms19041026] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2018] [Revised: 03/20/2018] [Accepted: 03/26/2018] [Indexed: 12/12/2022] Open
Abstract
Arsenite (As), a notorious toxic metal, is ubiquitously distributed in the earth and poses a serious threat to human health. Histopathological lesions of As intoxication are known as thromboangiitis obliterans, which are resistant to current treatment and often lead to lower limb amputation. In this study, we attempt to find that treatment with mesenchymal stem cells (MSCs) may be effective for As-induced vasculopathy. We first conducted an in vitro study with a co-culture system containing human MSCs and human umbilical vein endothelial cells (HUVECs) and treated individual and co-cultured cells with various concentrations of arsenite. We also designed an in vivo study in which Sprague Dawley (SD) rats received periodic intraperitoneal (IP) injections of 16 ppm arsenite for 12 weeks. MSCs were harvested from BALB/c mice that were transplanted via tail vein injection. We found that there was significantly higher cellular viability in human mesenchymal stem cells (hMSCs) than in HUVECs under concentrations of arsenite between 15 and 25 μM. The Annexin V apoptosis assay further confirmed this finding. Cytokine array assay for As-conditioned media revealed an elevated vascular endothelial growth factor (VEGF) level secreted by MSCs, which is crucial for HUVEC survival and was evaluated by an siRNA VEGF knockdown test. In the in vivo study, we demonstrated early apoptotic changes in the anterior tibial vessels of As-injected SD rats with a Terminal deoxynucleotidyl transferase dUTP nick end labeling (TUNEL) assay, but these apoptotic changes were less frequently observed upon MSCs transplantation, indicating that the cytoprotective effect of MSCs successfully protected against As-induced peripheral vasculopathy. The feasibility of MSCs to treat and /or prevent the progression of As-induced vasculopathy is justified. Further clinical studies are required to demonstrate the therapeutic efficacy of MSCs in patients suffering from As intoxication with vasculopathy.
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Affiliation(s)
- Yi-Hung Chiang
- Institute of Clinical Medicine, National Yang-Ming University, Taipei 11221, Taiwan.
- Department of Orthopaedics, National Yang-Ming University Hospital, Yilan 260, Taiwan.
| | - Chai-Chin Lin
- Department of Biotechnology and Animal Science, National Yilan University, Yilan 260, Taiwan.
| | - Yen-Chung Chen
- Department of Pathology, National Yang-Ming University Hospital, Yilan 260, Taiwan.
| | - Oscar K Lee
- Institute of Clinical Medicine, National Yang-Ming University, Taipei 11221, Taiwan.
- Stem Cell Research Center, National Yang-Ming University, Taipei 11221, Taiwan.
- Taipei City Hospital, Taipei 10341, Taiwan.
- Department of Medical Research, Taipei Veterans General Hospital, Taipei 11217, Taiwan.
- Department of Orthopaedics and Traumatology, Taipei Veterans General Hospital, Taipei 11217, Taiwan.
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Dahlawi S, Naeem A, Iqbal M, Farooq MA, Bibi S, Rengel Z. Opportunities and challenges in the use of mineral nutrition for minimizing arsenic toxicity and accumulation in rice: A critical review. CHEMOSPHERE 2018; 194:171-188. [PMID: 29202269 DOI: 10.1016/j.chemosphere.2017.11.149] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2017] [Revised: 11/21/2017] [Accepted: 11/25/2017] [Indexed: 06/07/2023]
Abstract
Growing rice on arsenic (As)-contaminated soil or irrigating with As-contaminated water leads to significant accumulation of As in grains. Moreover, rice accumulates more As into grains than other cereal crops. Thus, rice consumption has been identified as a major route of human exposure to As in many countries. Inorganic As species are carcinogenic and could pose a considerable health risk to humans even at low dietary concentration. Genotypic variation and concentration of nutrients such as iron, manganese, phosphate, sulfur and silicon are the two main factors that affect As accumulation in rice grains. Therefore, in addition to better growth and yield of plants, application of specific nutrients in optimum quantities offers an added benefit of decreasing As content in rice grains. These nutrient elements influence speciation of As in rhizosphere, compete with As for root uptake and interfere with As translocations to the shoot and ultimately accumulation in grains. This papers critically appraises the methods, forms and rate of application, mechanisms and extent of efficiency of different mineral nutrients in decreasing As accumulation in rice grains.
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Affiliation(s)
- Saad Dahlawi
- Department of Environmental Health, College of Public Health, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia; Institute for Research and Medical Consultation (IRMC), Imam Abdulrehman Bin Faisal University, P.O. Box 1982, Dammam, 31441, Saudi Arabia
| | - Asif Naeem
- Institute of Soil and Environmental Sciences, University of Agriculture, Faisalabad, Pakistan; Nuclear Institute of Agriculture and Biology, Jhang Road, Faisalabad, Pakistan
| | - Muhammad Iqbal
- Department of Botany, Jamia Hamdard (Hamdard University), New Delhi, India
| | - Muhammad Ansar Farooq
- Institute of Soil and Environmental Sciences, University of Agriculture, Faisalabad, Pakistan
| | - Sadia Bibi
- Institute of Soil and Environmental Sciences, University of Agriculture, Faisalabad, Pakistan
| | - Zed Rengel
- School of Agriculture and Environment, University of Western Australia, 35 Stirling Highway, Perth, WA, 6009, Australia
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24
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Genotoxicity evaluation of multi-component mixtures of polyaromatic hydrocarbons (PAHs), arsenic, cadmium, and lead using flow cytometry based micronucleus test in HepG2 cells. MUTATION RESEARCH-GENETIC TOXICOLOGY AND ENVIRONMENTAL MUTAGENESIS 2018; 827:9-18. [DOI: 10.1016/j.mrgentox.2018.01.002] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/13/2016] [Revised: 12/16/2017] [Accepted: 01/09/2018] [Indexed: 01/09/2023]
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25
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Pace C, Dagda R, Angermann J. Antioxidants Protect against Arsenic Induced Mitochondrial Cardio-Toxicity. TOXICS 2017; 5:toxics5040038. [PMID: 29206204 PMCID: PMC5750566 DOI: 10.3390/toxics5040038] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/30/2017] [Revised: 11/29/2017] [Accepted: 12/01/2017] [Indexed: 12/17/2022]
Abstract
Arsenic is a potent cardiovascular toxicant associated with numerous biomarkers of cardiovascular diseases in exposed human populations. Arsenic is also a carcinogen, yet arsenic trioxide is used as a therapeutic agent in the treatment of acute promyelotic leukemia (APL). The therapeutic use of arsenic is limited due to its severe cardiovascular side effects. Many of the toxic effects of arsenic are mediated by mitochondrial dysfunction and related to arsenic's effect on oxidative stress. Therefore, we investigated the effectiveness of antioxidants against arsenic induced cardiovascular dysfunction. A growing body of evidence suggests that antioxidant phytonutrients may ameliorate the toxic effects of arsenic on mitochondria by scavenging free radicals. This review identifies 21 antioxidants that can effectively reverse mitochondrial dysfunction and oxidative stress in cardiovascular cells and tissues. In addition, we propose that antioxidants have the potential to improve the cardiovascular health of millions of people chronically exposed to elevated arsenic concentrations through contaminated water supplies or used to treat certain types of leukemias. Importantly, we identify conceptual gaps in research and development of new mito-protective antioxidants and suggest avenues for future research to improve bioavailability of antioxidants and distribution to target tissues in order reduce arsenic-induced cardiovascular toxicity in a real-world context.
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Affiliation(s)
- Clare Pace
- Department of Environmental Science and Health, University of Nevada, Reno, NV 89557, USA.
| | - Ruben Dagda
- Department of Pharmacology, University of Nevada, Reno School of Medicine, Reno, NV 89557, USA.
| | - Jeff Angermann
- School of Community Health Sciences, University of Nevada, Reno, NV 89557, USA.
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26
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Tengjaroenkul B, Intamat S, Thanomsangad P, Phoonaploy U, Neeratanaphan L. Cytotoxic effect of sodium arsenite on Nile tilapia (Oreochromis niloticus) in vivo. ACTA ACUST UNITED AC 2017. [DOI: 10.1080/00207233.2017.1389572] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Bundit Tengjaroenkul
- Research Center for Environmental and Hazardous Substance Management, Khon Kaen University, Khon Kaen, Thailand
- Faculty of Veterinary Medicine, Department of Veterinary Medicine, Khon Kaen University, Khon Kaen, Thailand
| | - Somsak Intamat
- Research Center for Environmental and Hazardous Substance Management, Khon Kaen University, Khon Kaen, Thailand
- Thatphanom Crown Prince Hospital, Nakornphanom, Thailand
| | - Pornpilai Thanomsangad
- Research Center for Environmental and Hazardous Substance Management, Khon Kaen University, Khon Kaen, Thailand
- Faculty of Science, Department of Environmental Science, Khon Kaen University, Khon Kaen, Thailand
| | - Uraiwan Phoonaploy
- Research Center for Environmental and Hazardous Substance Management, Khon Kaen University, Khon Kaen, Thailand
- Faculty of Science, Department of Environmental Science, Khon Kaen University, Khon Kaen, Thailand
| | - Lamyai Neeratanaphan
- Research Center for Environmental and Hazardous Substance Management, Khon Kaen University, Khon Kaen, Thailand
- Faculty of Science, Department of Environmental Science, Khon Kaen University, Khon Kaen, Thailand
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27
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Burioli EAV, Squadrone S, Stella C, Foglini C, Abete MC, Prearo M. Trace element occurrence in the Pacific oyster Crassostrea gigas from coastal marine ecosystems in Italy. CHEMOSPHERE 2017; 187:248-260. [PMID: 28850909 DOI: 10.1016/j.chemosphere.2017.08.102] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/11/2017] [Revised: 07/17/2017] [Accepted: 08/18/2017] [Indexed: 06/07/2023]
Abstract
The Pacific oyster is one of the world's most widespread bivalves and a suitable species for biomonitoring trace elements in marine environments thanks to its bioaccumulation ability. As it is also an edible mollusc, concentrations of harmful elements in its tissues must be monitored. For these purposes, 464 wild individuals were collected from 12 sites along the Italian coasts. The concentration of fourteen trace elements (Al, As, Cd, Cr, Cu, Fe, Hg, Mn, Ni, Pb, Se, Sn, Tl, and Zn) in their tissues was quantified. Among the three heavy metals, cadmium, lead, and mercury, none exceeded the maximum limit for in food set by European Union regulations but Cd in one sample from the Varano Lagoon resulted extremely close to this value. Contamination by Hg of the northern Adriatic and Orbetello Lagoons was also observed. Moreover, there was a positive association between the lagoon's environmental conditions and the bioaccumulation of this element in oysters. Despite the ban instituted 15 years ago on the use of Sn in antifouling paints, this element is still present in several marine environments, as demonstrated in the oysters sampled from harbour areas. Samples collected from harbours also showed very high concentrations of Cu and Zn due to the ability of oysters to accumulate these elements, which have replaced Sn in antifouling paints. Analysis of the samples from most sites indicated a low risk of human exposure to harmful elements through oyster consumption; nonetheless, chemical sanitary controls should focus primarily on Cd, Cu, and Zn.
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Affiliation(s)
- E A V Burioli
- Istituto Zooprofilattico Sperimentale Del Piemonte, Liguria e Valle D'Aosta, Turin, Italy.
| | - S Squadrone
- Istituto Zooprofilattico Sperimentale Del Piemonte, Liguria e Valle D'Aosta, Turin, Italy
| | - C Stella
- Istituto Zooprofilattico Sperimentale Del Piemonte, Liguria e Valle D'Aosta, Turin, Italy
| | - C Foglini
- Istituto Zooprofilattico Sperimentale Del Piemonte, Liguria e Valle D'Aosta, Turin, Italy
| | - M C Abete
- Istituto Zooprofilattico Sperimentale Del Piemonte, Liguria e Valle D'Aosta, Turin, Italy
| | - M Prearo
- Istituto Zooprofilattico Sperimentale Del Piemonte, Liguria e Valle D'Aosta, Turin, Italy
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28
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Arcega-Cabrera F, Fargher LF, Oceguera-Vargas I, Noreña-Barroso E, Yánez-Estrada L, Alvarado J, González L, Moo-Puc R, Pérez-Herrera N, Quesadas-Rojas M, Pérez-Medina S. Water Consumption as Source of Arsenic, Chromium, and Mercury in Children Living in Rural Yucatan, Mexico: Blood and Urine Levels. BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2017; 99:452-459. [PMID: 28776191 DOI: 10.1007/s00128-017-2147-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2017] [Accepted: 07/28/2017] [Indexed: 06/07/2023]
Abstract
Studies investigating the correlation between metal content in water and metal levels in children are scarce worldwide, but especially in developing nations. Therefore, this study investigates the correlation between arsenic, chromium, and mercury concentrations in drinking and cooking water and in blood and urine samples collected from healthy and supposedly non-exposed children from a rural area in Yucatan, Mexico. Mercury in water shows concentrations above the recommended World Health Organization (WHO) value for drinking and cooking water. Also, 25% of the children show mercury in urine above the WHO recommended value. Multivariate analyses show a significant role for drinking and cooking water as a vector of exposure in children. Also, the factor analysis shows chronic exposure in the case of arsenic, as well as an ongoing detoxification process through urine in the case of mercury. Further studies should be done in order to determine other potential metal exposure pathways among children.
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Affiliation(s)
- F Arcega-Cabrera
- Unidad de Química Sisal, Facultad de Química, Universidad Nacional Autónoma de México, 97355, Puerto de Abrigo Sisal, Yucatán, Mexico.
| | - L F Fargher
- Departamento de Ecología Humana, Centro de Investigación y de Estudios Avanzados del IPN-Unidad Mérida, Km 6 antigua carretera a Progreso, 97310, Mérida, Yucatán, Mexico
| | - I Oceguera-Vargas
- Unidad de Química Sisal, Facultad de Química, Universidad Nacional Autónoma de México, 97355, Puerto de Abrigo Sisal, Yucatán, Mexico
| | - E Noreña-Barroso
- Unidad de Química Sisal, Facultad de Química, Universidad Nacional Autónoma de México, 97355, Puerto de Abrigo Sisal, Yucatán, Mexico
| | - L Yánez-Estrada
- Laboratorio de Género, Salud y Ambiente, Facultad de Medicina, Universidad Autónoma de San Luis Potosí, 78210, San Luis Potosí, Mexico
| | - J Alvarado
- Facultad de Medicina, Universidad Autónoma de Yucatan, Av Itzaes 498, 97100, Mérida, Yucatán, Mexico
| | - L González
- Facultad de Medicina, Universidad Autónoma de Yucatan, Av Itzaes 498, 97100, Mérida, Yucatán, Mexico
| | - R Moo-Puc
- Unidad de Investigación Médica Yucatán, Unidad Médica de Alta Especialidad Hospital de Especialidades Centro Médico Nacional "Ignacio García Téllez" Mérida, Instituto Mexicano del Seguro Social (IMSS), Calle 41 No. 439, Col. Industrial, 97150, Mérida, Yucatán, Mexico
| | - N Pérez-Herrera
- Unidad Interinstitucional de Investigación Clínica y Epidemiológica, Facultad de Medicina, Universidad Autónoma de Yucatán, Av. Itzaes No. 498 x 59-A, Colonia Centro, 97000, Mérida, Yucatán, Mexico
| | - M Quesadas-Rojas
- Unidad de Química Sisal, Facultad de Química, Universidad Nacional Autónoma de México, 97355, Puerto de Abrigo Sisal, Yucatán, Mexico
| | - S Pérez-Medina
- Departamento de Ecología Humana, Centro de Investigación y de Estudios Avanzados del IPN-Unidad Mérida, Km 6 antigua carretera a Progreso, 97310, Mérida, Yucatán, Mexico
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29
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Chen G, Lai B, Mao X, Chen T, Chen M. Continuous Arsine Detection Using a Peltier-Effect Cryogenic Trap To Selectively Trap Methylated Arsines. Anal Chem 2017; 89:8678-8682. [DOI: 10.1021/acs.analchem.7b02635] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Guoying Chen
- Agricultural
Research Service, Eastern Regional Research Center, U.S. Department of Agriculture, 600 E. Mermaid Lane, Wyndmoor, Pennsylvania 19038, United States
| | - Bunhong Lai
- Agricultural
Research Service, Eastern Regional Research Center, U.S. Department of Agriculture, 600 E. Mermaid Lane, Wyndmoor, Pennsylvania 19038, United States
| | - Xuefei Mao
- Institute
of Quality Standard and Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences, 12 Zhongguancun S. Street, Beijing 100081, China
| | - Tuanwei Chen
- College
of Food Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China
| | - Miaomiao Chen
- Department
of Food Science, Jinan University, Guangzhou, Guangdong 510632, China
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30
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Jung MY, Kang JH, Jung HJ, Ma SY. Inorganic arsenic contents in ready-to-eat rice products and various Korean rice determined by a highly sensitive gas chromatography-tandem mass spectrometry. Food Chem 2017; 240:1179-1183. [PMID: 28946240 DOI: 10.1016/j.foodchem.2017.08.053] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2017] [Revised: 08/03/2017] [Accepted: 08/15/2017] [Indexed: 02/01/2023]
Abstract
Rice and rice products have been reported to contain high contents of toxic inorganic arsenic (iAs). The inorganic arsenic contents in microwavable ready-to-eat rice products (n=30) and different types of Korean rice (n=102) were determined by a gas chromatography-tandem mass spectrometry (GC-MS/MS). The method showed low limit of detection (0.015pg), high intra- and inter-day repeatability (<7.3%, RSD), and recovery rates (90-117%). The mean iAs content in the ready-to-eat rice products was 59μgkg-1 (dry weight basis). The mean iAs contents in polished white, brown, black, and waxy rice were 65, 109, 91, and 66μgkg-1, respectively. The percentages of ready-to-eat rice products, white, brown, black, and waxy rice containing iAs over the maximum level (100μgkg-1) set by EU for the infant foods were 17, 4, 70, 36 and 0%, respectively.
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Affiliation(s)
- Mun Yhung Jung
- Department of Food and Biotechnology, Graduate School, Woosuk University, Samnye-eup, Wanju-gun, Jeonbuk Province 565-701, Republic of Korea; Agricultural and Food Product Safety Analysis Center, Woosuk University, Republic of Korea.
| | - Ju Hee Kang
- Department of Food and Biotechnology, Graduate School, Woosuk University, Samnye-eup, Wanju-gun, Jeonbuk Province 565-701, Republic of Korea
| | - Hyun Jeong Jung
- Department of Food Science and Biotechnology, College of Food Science, Woosuk University, Samnye-eup, Wanju-gun, Jeonbuk Province 565-701, Republic of Korea
| | - Sang Yong Ma
- Department of Food Science and Biotechnology, College of Food Science, Woosuk University, Samnye-eup, Wanju-gun, Jeonbuk Province 565-701, Republic of Korea; Agricultural and Food Product Safety Analysis Center, Woosuk University, Republic of Korea
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31
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Sattar A, Xie S, Hafeez MA, Wang X, Hussain HI, Iqbal Z, Pan Y, Iqbal M, Shabbir MA, Yuan Z. Metabolism and toxicity of arsenicals in mammals. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2016; 48:214-224. [PMID: 27829199 DOI: 10.1016/j.etap.2016.10.020] [Citation(s) in RCA: 56] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/18/2016] [Revised: 10/26/2016] [Accepted: 10/27/2016] [Indexed: 06/06/2023]
Abstract
Arsenic (As) is a metalloid usually found in organic and inorganic forms with different oxidation states, while inorganic form (arsenite As-III and arsenate As-v) is considered to be more hazardous as compared to organic form (methylarsonate and dimethylarsinate), with mild or no toxicity in mammals. Due to an increasing trend to using arsenicals as growth promoters or for treatment purposes, the understanding of metabolism and toxicity of As gets vital importance. Its toxicity is mainly depends on oxi-reduction states (As-III or As-v) and the level of methylation during the metabolism process. Currently, the exact metabolic pathways of As have yet to be confirmed in humans and food producing animals. Oxidative methylation and glutathione conjugation is believed to be major pathways of As metabolism. Oxidative methylation is based on conversion of Arsenite in to mono-methylarsonic acid and di-methylarsenic acid in mammals. It has been confirmed that As is only methylated in the presence of glutathione or thiol compounds, suggesting that As is being methylated in trivalent states. Subsequently, non-conjugated trivalent arsenicals are highly reactive with thiol which converts the trivalent arsenicals in to less toxic pentavalent forms. The glutathione conjugate stability of As is the most important factor for determining the toxicity. It can lead to DNA damage by alerting enzyme profile and production of reactive oxygen and nitrogen species which causes the oxidative stress. Moreover, As causes immune-dysfunction by hindering cellular and humeral immune response. The present review discussed different metabolic pathways and toxic outcomes of arsenicals in mammals which will be helpful in health risk assessment and its impact on biological world.
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Affiliation(s)
- Adeel Sattar
- National Reference Laboratory of Veterinary Drug Residues (HZAU), Huazhong Agricultural University, Wuhan, Hubei 430070, China
| | - Shuyu Xie
- National Reference Laboratory of Veterinary Drug Residues (HZAU), Huazhong Agricultural University, Wuhan, Hubei 430070, China.
| | | | - Xu Wang
- National Reference Laboratory of Veterinary Drug Residues (HZAU), Huazhong Agricultural University, Wuhan, Hubei 430070, China; MAO Key Laboratory for Detection of Veterinary Drug Residues, Huazhong Agricultural University, Wuhan, Hubei 430070, China; MOA Laboratory for Risk Assessment of Quality and Safety of Livestock and Poultry Products, Huazhong Agricultural University, Wuhan, Hubei 430070, China
| | - Hafiz Iftikhar Hussain
- MOA Laboratory for Risk Assessment of Quality and Safety of Livestock and Poultry Products, Huazhong Agricultural University, Wuhan, Hubei 430070, China
| | - Zahid Iqbal
- MOA Laboratory for Risk Assessment of Quality and Safety of Livestock and Poultry Products, Huazhong Agricultural University, Wuhan, Hubei 430070, China
| | - Yuanhu Pan
- National Reference Laboratory of Veterinary Drug Residues (HZAU), Huazhong Agricultural University, Wuhan, Hubei 430070, China
| | - Mujahid Iqbal
- National Reference Laboratory of Veterinary Drug Residues (HZAU), Huazhong Agricultural University, Wuhan, Hubei 430070, China
| | - Muhammad Abubakr Shabbir
- MOA Laboratory for Risk Assessment of Quality and Safety of Livestock and Poultry Products, Huazhong Agricultural University, Wuhan, Hubei 430070, China
| | - Zonghui Yuan
- National Reference Laboratory of Veterinary Drug Residues (HZAU), Huazhong Agricultural University, Wuhan, Hubei 430070, China; MAO Key Laboratory for Detection of Veterinary Drug Residues, Huazhong Agricultural University, Wuhan, Hubei 430070, China; MOA Laboratory for Risk Assessment of Quality and Safety of Livestock and Poultry Products, Huazhong Agricultural University, Wuhan, Hubei 430070, China.
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Choiniere J, Wang L. Exposure to inorganic arsenic can lead to gut microbe perturbations and hepatocellular carcinoma. Acta Pharm Sin B 2016; 6:426-429. [PMID: 27709011 PMCID: PMC5045549 DOI: 10.1016/j.apsb.2016.07.011] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2016] [Revised: 04/29/2016] [Accepted: 05/10/2016] [Indexed: 12/16/2022] Open
Abstract
Arsenic is a carcinogenic environmental factor found in food and drinking water around the world. The mechanisms in which arsenic alters homeostasis are not fully understood. Over the past few decades, light has been shed on varying mechanisms in which arsenic induces cancer. Such mechanisms include gut microbe perturbations, genotoxic effects, and epigenetic modification. Gut microbe perturbations have been shown to increase the level of pathogen-associated molecular patterns such as lipopolysaccharide (LPS) leading to uncontained inflammation. Increase in inflammation is the major factor in cirrhosis leading to hepatocellular carcinoma. Alterations in gut permeability and metabolites have also been observed as a fallout of arsenic induced gut microbe modification. The guts proximity and interaction through portal flow make the liver susceptible to gut perturbations and ensuing inflammatory responses. Genotoxic and epigenetic dysregulation induced by arsenic and its toxic metabolites present a more direct mechanism that works synergistically with gut microbe perturbations to induce the incidence of cancers. These pathways combined could be some of the main causes of arsenic-induced carcinogenesis.
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33
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Pace C, Banerjee TD, Welch B, Khalili R, Dagda RK, Angermann J. Monomethylarsonous acid, but not inorganic arsenic, is a mitochondria-specific toxicant in vascular smooth muscle cells. Toxicol In Vitro 2016; 35:188-201. [PMID: 27327130 DOI: 10.1016/j.tiv.2016.06.006] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2016] [Revised: 06/07/2016] [Accepted: 06/16/2016] [Indexed: 12/11/2022]
Abstract
Arsenic exposure has been implicated as a risk factor for cardiovascular diseases, metabolic disorders, and cancer, yet the role mitochondrial dysfunction plays in the cellular mechanisms of pathology is largely unknown. To investigate arsenic-induced mitochondrial dysfunction in vascular smooth muscle cells (VSMCs), we exposed rat aortic smooth muscle cells (A7r5) to inorganic arsenic (iAs(III)) and its metabolite monomethylarsonous acid (MMA(III)) and compared their effects on mitochondrial function and oxidative stress. Our results indicate that MMA(III) is significantly more toxic to mitochondria than iAs(III). Exposure of VSMCs to MMA(III), but not iAs(III), significantly decreased basal and maximal oxygen consumption rates and concomitantly increased compensatory extracellular acidification rates, a proxy for glycolysis. Treatment with MMA(III) significantly increased hydrogen peroxide and superoxide levels compared to iAs(III). Exposure to MMA(III) resulted in significant decreases in mitochondrial ATP, aberrant perinuclear clustering of mitochondria, and decreased mitochondrial content. Mechanistically, we observed that mitochondrial superoxide and hydrogen peroxide contribute to mitochondrial toxicity, as treatment of cells with MnTBAP (a mitochondrial superoxide dismutase mimetic) and catalase significantly reduced mitochondrial respiration deficits and cell death induced by both arsenic compounds. Overall, our data demonstrates that MMA(III) is a mitochondria-specific toxicant that elevates mitochondrial and non-mitochondrial sources of ROS.
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Affiliation(s)
- Clare Pace
- Department of Environmental Sciences and Health, University of Nevada, Reno, NV 89557, USA
| | - Tania Das Banerjee
- Department of Pharmacology, University of Nevada School of Medicine, Reno, NV 89557, USA
| | - Barrett Welch
- School of Community Health Sciences, University of Nevada, Reno, NV 89557, USA
| | - Roxana Khalili
- Department of Environmental Sciences and Health, University of Nevada, Reno, NV 89557, USA
| | - Ruben K Dagda
- Department of Pharmacology, University of Nevada School of Medicine, Reno, NV 89557, USA.
| | - Jeff Angermann
- School of Community Health Sciences, University of Nevada, Reno, NV 89557, USA.
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34
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Kang JH, Jung HJ, Jung MY. One step derivatization with British Anti-Lewsite in combination with gas chromatography coupled to triple-quadrupole tandem mass spectrometry for the fast and selective analysis of inorganic arsenic in rice. Anal Chim Acta 2016; 934:231-8. [PMID: 27506365 DOI: 10.1016/j.aca.2016.05.046] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2016] [Revised: 05/22/2016] [Accepted: 05/31/2016] [Indexed: 11/20/2022]
Abstract
We developed a new fast and selective analytical method for the determination of inorganic arsenic (iAs) in rice by a gas chromatography - tandem mass spectrometry (GC-MS/MS) in combination with one step derivatization of inorganic arsenic (iAs) with British Anti-Lewsite (BAL). Two step derivatization of iAs with BAL has been previously performed for the GC-MS analysis. In this paper, the quantitative one step derivatization condition was successfully established. The GC-MS/MS was carried out with a short nonpolar capillary column (0.25 mm × 10 m) under the conditions of fast oven temperature ramp rate (4 °C/s) and high linear velocity (108.8 cm/s) of the carrier gas. The established GC-MS/MS method showed an excellent linearity (r(2) > 0.999) in a tested range (0.2-100.0 μg L(-1)), ultra-low limit of detection (LOD, 0.08 pg), and high precision and accuracy. The GC-MS/MS technique showed far greater selectivity (22.5 fold higher signal to noise ratio in rice sample) on iAs than GC-MS method. The gas chromatographic running time was only 2.5 min with the iAs retention time of 1.98 min. The established method was successfully applied to quantify the iAs contents in polished rice. The mean iAs content in the Korean polished rice (n = 27) was 66.1 μg kg(-1) with the range of 37.5-125.0 μg kg(-1). This represents the first report on the GC-tandem mass spectrometry in combination with the one step derivatization with BAL for the iAs speciation in rice. This GC-MS/MS method would be a simple, useful and reliable measure for the iAs analysis in rice in the laboratories in which the expensive and element specific HPLC-ICP-MS is not available.
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Affiliation(s)
- Ju Hui Kang
- Department of Food and Biotechnology, College of Food Science, Woosuk University, Samrea-Up, Wanju-Kun, Jeonbuk Province 565-701, Republic of Korea
| | - Hyun Jeong Jung
- Department of Food and Biotechnology, College of Food Science, Woosuk University, Samrea-Up, Wanju-Kun, Jeonbuk Province 565-701, Republic of Korea
| | - Mun Yhung Jung
- Department of Food and Biotechnology, College of Food Science, Woosuk University, Samrea-Up, Wanju-Kun, Jeonbuk Province 565-701, Republic of Korea; Agricultural and Food Product Safety Analysis Center, Woosuk University, Samrea-Up, Wanju-Kun, Jeonbuk Province 565-701, Republic of Korea.
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35
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Sayed AEDH, Elbaghdady HAM, Zahran E. Arsenic-induced genotoxicity in Nile tilapia (Orechromis niloticus); the role of Spirulina platensis extract. ENVIRONMENTAL MONITORING AND ASSESSMENT 2015; 187:751. [PMID: 26573688 DOI: 10.1007/s10661-015-4983-7] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/04/2015] [Accepted: 11/10/2015] [Indexed: 02/07/2023]
Abstract
Arsenic (As) is one of the most relevant environmental global single substance toxicants that have long been regarded as a carcinogenic and genotoxic potential. In this respect, we evaluated the cytogenetic effect of arsenic exposure in Nile tilapia (Oreochromis niloticus), in terms of erythrocyte alteration, apoptosis, and induction of micronuclei. Spirulina platensis (SP) is a filamentous cyanobacterium microalgae with potent dietary phytoantioxidant, anti-inflammatory, and anti-cancerous properties supplementation. The protective role of Spirulina as supplementary feeds was studied in Nile tilapia (O. niloticus) against arsenic-induced cytogenotoxicity. Four groups were assigned as control group (no SP or As), As group (exposed to water-born As in the form of NaAsO2 at 7 ppm), SP1 (SP at 7.5% + As at the same level of exposure), and SP2 (SP at 10% + As at the same level of exposure). As-treated group had a significant increase in all cytogenetic analyses including erythrocyte alteration, apoptosis, and induction of micronuclei after 2 weeks with continuous increase in response after 3 weeks. The combined treatment of Spirulina at two different concentrations of 7.5 and 10% had significantly declined the induction of erythrocyte alteration, apoptosis, and micronuclei formation induced by arsenic intoxication.
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Affiliation(s)
- Alaa El-Din H Sayed
- Zoology Department, Faculty of Science, Assiut University, 71516, Assiut, Egypt.
| | | | - Eman Zahran
- Department of Internal Medicine, Faculty of Veterinary Medicine, Mansoura University, Mansoura, 35516, Egypt
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Erturk FA, Aydin M, Sigmaz B, Taspinar MS, Arslan E, Agar G, Yagci S. Effects of As2O3 on DNA methylation, genomic instability, and LTR retrotransposon polymorphism in Zea mays. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2015; 22:18601-6. [PMID: 26396013 DOI: 10.1007/s11356-015-5426-2] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/09/2014] [Accepted: 09/14/2015] [Indexed: 05/07/2023]
Abstract
Arsenic is a well-known toxic substance on the living organisms. However, limited efforts have been made to study its DNA methylation, genomic instability, and long terminal repeat (LTR) retrotransposon polymorphism causing properties in different crops. In the present study, effects of As2O3 (arsenic trioxide) on LTR retrotransposon polymorphism and DNA methylation as well as DNA damage in Zea mays seedlings were investigated. The results showed that all of arsenic doses caused a decreasing genomic template stability (GTS) and an increasing Random Amplified Polymorphic DNAs (RAPDs) profile changes (DNA damage). In addition, increasing DNA methylation and LTR retrotransposon polymorphism characterized a model to explain the epigenetically changes in the gene expression were also found. The results of this experiment have clearly shown that arsenic has epigenetic effect as well as its genotoxic effect. Especially, the increasing of polymorphism of some LTR retrotransposon under arsenic stress may be a part of the defense system against the stress.
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Affiliation(s)
- Filiz Aygun Erturk
- Department of Biology, Faculty of Science, Atatürk University, 25240, Erzurum, Turkey
| | - Murat Aydin
- Department of Field Crops, Faculty of Agriculture, Ataturk University, 25240, Erzurum, Turkey
| | - Burcu Sigmaz
- Department of Biology, Faculty of Science, Atatürk University, 25240, Erzurum, Turkey.
| | - M Sinan Taspinar
- Department of Agricultural Biotechnology, Faculty of Agriculture, Ataturk University, 25240, Erzurum, Turkey
| | - Esra Arslan
- Department of Biology, Faculty of Science, Atatürk University, 25240, Erzurum, Turkey
| | - Guleray Agar
- Department of Biology, Faculty of Science, Atatürk University, 25240, Erzurum, Turkey
| | - Semra Yagci
- Department of Biology, Faculty of Science, Atatürk University, 25240, Erzurum, Turkey
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Meyer S, Raber G, Ebert F, Leffers L, Müller SM, Taleshi MS, Francesconi KA, Schwerdtle T. In vitro toxicological characterisation of arsenic-containing fatty acids and three of their metabolites. Toxicol Res (Camb) 2015; 4:1289-1296. [PMID: 26744620 PMCID: PMC4690163 DOI: 10.1039/c5tx00122f] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2015] [Accepted: 06/17/2015] [Indexed: 01/10/2023] Open
Abstract
Arsenic-containing fatty acids are bioavailable and toxic to human liver cells in culture.
Arsenic-containing fatty acids are a group of fat-soluble arsenic species (arsenolipids) which are present in marine fish and other seafood. Recently, it has been shown that arsenic-containing hydrocarbons, another group of arsenolipids, exert toxicity in similar concentrations comparable to arsenite although the toxic modes of action differ. Hence, a risk assessment of arsenolipids is urgently needed. In this study the cellular toxicity of a saturated (AsFA 362) and an unsaturated (AsFA 388) arsenic-containing fatty acid and three of their proposed metabolites (DMAV, DMAPr and thio-DMAPr) were investigated in human liver cells (HepG2). Even though both arsenic-containing fatty acids were less toxic as compared to arsenic-containing hydrocarbons and arsenite, significant effects were observable at μM concentrations. DMAV causes effects in a similar concentration range and it could be seen that it is metabolised to its highly toxic thio analogue thio-DMAV in HepG2 cells. Nevertheless, DMAPr and thio-DMAPr did not exert any cytotoxicity. In summary, our data indicate that risks to human health related to the presence of arsenic-containing fatty acids in marine food cannot be excluded. This stresses the need for a full in vitro and in vivo toxicological characterisation of these arsenolipids.
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Affiliation(s)
- S Meyer
- Graduate School of Chemistry , University of Münster , Wilhelm-Klemm-Straße 10 , 48149 Münster , Germany . ; Institute of Nutritional Science , University of Potsdam , Arthur-Scheunert-Allee 114-116 , 14558 Nuthetal , Germany
| | - G Raber
- Institute of Chemistry - Analytical Chemistry , NAWI Graz , University of Graz , Universitätsplatz 1 , 8010 Graz , Austria
| | - F Ebert
- Institute of Nutritional Science , University of Potsdam , Arthur-Scheunert-Allee 114-116 , 14558 Nuthetal , Germany
| | - L Leffers
- Graduate School of Chemistry , University of Münster , Wilhelm-Klemm-Straße 10 , 48149 Münster , Germany .
| | - S M Müller
- Institute of Nutritional Science , University of Potsdam , Arthur-Scheunert-Allee 114-116 , 14558 Nuthetal , Germany ; Heinrich-Stockmeyer-Stiftung , Parkstraße 44-46 , 49214 Bad Rothenfelde , Germany
| | - M S Taleshi
- Department of Marine Chemistry , Faculty of Marine Science , University of Mazandaran , Babolsar , Iran
| | - K A Francesconi
- Institute of Chemistry - Analytical Chemistry , NAWI Graz , University of Graz , Universitätsplatz 1 , 8010 Graz , Austria
| | - T Schwerdtle
- Graduate School of Chemistry , University of Münster , Wilhelm-Klemm-Straße 10 , 48149 Münster , Germany . ; Institute of Nutritional Science , University of Potsdam , Arthur-Scheunert-Allee 114-116 , 14558 Nuthetal , Germany
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Meyer S, Matissek M, Müller SM, Taleshi MS, Ebert F, Francesconi KA, Schwerdtle T. In vitro toxicological characterisation of three arsenic-containing hydrocarbons. Metallomics 2014; 6:1023-33. [PMID: 24718560 DOI: 10.1039/c4mt00061g] [Citation(s) in RCA: 87] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Arsenic-containing hydrocarbons are one group of fat-soluble organic arsenic compounds (arsenolipids) found in marine fish and other seafood. A risk assessment of arsenolipids is urgently needed, but has not been possible because of the total lack of toxicological data. In this study the cellular toxicity of three arsenic-containing hydrocarbons was investigated in cultured human bladder (UROtsa) and liver (HepG2) cells. Cytotoxicity of the arsenic-containing hydrocarbons was comparable to that of arsenite, which was applied as the toxic reference arsenical. A large cellular accumulation of arsenic, as measured by ICP-MS/MS, was observed after incubation of both cell lines with the arsenolipids. Moreover, the toxic mode of action shown by the three arsenic-containing hydrocarbons seemed to differ from that observed for arsenite. Evidence suggests that the high cytotoxic potential of the lipophilic arsenicals results from a decrease in the cellular energy level. This first in vitro based risk assessment cannot exclude a risk to human health related to the presence of arsenolipids in seafood, and indicates the urgent need for further toxicity studies in experimental animals to fully assess this possible risk.
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Affiliation(s)
- S Meyer
- Graduate School of Chemistry, University of Münster, Wilhelm-Klemm-Straße 10, 48149 Münster, Germany
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Kumar A, Kesari VP, Alok AK, Kazim SN, Khan PK. Assessment of arsenic-induced DNA damage in goldfish by a polymerase chain reaction-based technique using random amplified polymorphic DNA markers. ARCHIVES OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2014; 67:630-638. [PMID: 24965481 DOI: 10.1007/s00244-014-0051-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2013] [Accepted: 05/20/2014] [Indexed: 06/03/2023]
Abstract
Arsenic is a groundwater contaminant of global concern. It is a potent human carcinogen, and its marked genotoxic effects have been reported in several human and animal studies. The present work investigates the applicability of the random amplified polymorphic DNA (RAPD) assay to study the DNA-damaging effects of arsenic at low-level exposure in goldfish Carassius auratus. Four experimental groups of fish, A, B, C and D, were exposed to 0, 10, 50, and 1,000 µg L(-1) of arsenic, respectively, in aquaria water for 15 consecutive days. Genomic DNA extraction was followed by RAPD-polymerase chain reaction amplification for each fish separately. One arbitrary decamer primer (PUZ-19) of 33 primers used appeared as the most informative and was capable of exhibiting marked alterations in RAPD profiles between arsenic-exposed and unexposed (control) samples. Different sets of 11 loci were amplified in various experimental groups with four clear polymorphic bands by the primer PUZ-19. The X and XIII amplification loci, which were prominent in the unexposed group, failed to appear in the arsenic-exposed groups. In contrast, the I and XI RAPD bands appeared as new amplification loci in all of the exposed groups. Such alterations in genomic DNA, however, did not exhibit a clear dose-dependent tendency. The RAPD assay, because of its efficacy to unmask alterations in genomic DNA induced by arsenic at low exposure level of 10 µg L(-1), appears to be a sensitive and potential tool for detecting arsenic genotoxicity.
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Affiliation(s)
- Amod Kumar
- Toxicogenetics Laboratory, Department of Zoology, Patna University, Patna, 800 005, India
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40
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Protective action of curcumin and nano-curcumin against arsenic-induced genotoxicity in rats in vivo. Mol Biol Rep 2014; 41:7413-22. [PMID: 25078984 DOI: 10.1007/s11033-014-3629-0] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2013] [Accepted: 07/21/2014] [Indexed: 10/25/2022]
Abstract
We explored whether nanoformulation of curcumin can cause better protective effect than free curcumin against arsenic-induced genotoxicity. Curcumin-loaded Poly(lactic-co-glycolic acid) nanoparticles (CUR-NP) were prepared by emulsion technique. The CUR-NP were water soluble and showed biphasic release pattern. Rats were divided into 5 groups of 6 each. Group I served as the control. Group II rats were exposed to sodium arsenite (25 ppm) daily through drinking water for 42 days. Groups III, IV and V were maintained as in Group II, however, they were also administered empty nanoparticle, curcumin (100 mg/kg bw) and CUR-NP (100 mg/kg bw), respectively, by oral gavage during the last 14 days of arsenic exposure. On the 43rd day, genotoxic effects were evaluated in bone marrow cells. Arsenic increased chromosomal aberrations, micronuclei formation and DNA damage. Both free curcumin and CUR-NP attenuated these arsenic-mediated genotoxic effects. However, the result suggests that nanoformulation have better protective effect than free curcumin at the same dose level.
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Ray PD, Yosim A, Fry RC. Incorporating epigenetic data into the risk assessment process for the toxic metals arsenic, cadmium, chromium, lead, and mercury: strategies and challenges. Front Genet 2014; 5:201. [PMID: 25076963 PMCID: PMC4100550 DOI: 10.3389/fgene.2014.00201] [Citation(s) in RCA: 106] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2014] [Accepted: 06/16/2014] [Indexed: 12/24/2022] Open
Abstract
Exposure to toxic metals poses a serious human health hazard based on ubiquitous environmental presence, the extent of exposure, and the toxicity and disease states associated with exposure. This global health issue warrants accurate and reliable models derived from the risk assessment process to predict disease risk in populations. There has been considerable interest recently in the impact of environmental toxicants such as toxic metals on the epigenome. Epigenetic modifications are alterations to an individual's genome without a change in the DNA sequence, and include, but are not limited to, three commonly studied alterations: DNA methylation, histone modification, and non-coding RNA expression. Given the role of epigenetic alterations in regulating gene and thus protein expression, there is the potential for the integration of toxic metal-induced epigenetic alterations as informative factors in the risk assessment process. In the present review, epigenetic alterations induced by five high priority toxic metals/metalloids are prioritized for analysis and their possible inclusion into the risk assessment process is discussed.
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Affiliation(s)
- Paul D. Ray
- Department of Environmental Sciences and Engineering, Gillings School of Global Public Health, University of North CarolinaChapel Hill, NC, USA
- Curriculum in Toxicology, School of Medicine, University of North CarolinaChapel Hill, NC, USA
| | - Andrew Yosim
- Department of Environmental Sciences and Engineering, Gillings School of Global Public Health, University of North CarolinaChapel Hill, NC, USA
| | - Rebecca C. Fry
- Department of Environmental Sciences and Engineering, Gillings School of Global Public Health, University of North CarolinaChapel Hill, NC, USA
- Curriculum in Toxicology, School of Medicine, University of North CarolinaChapel Hill, NC, USA
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Bustaffa E, Stoccoro A, Bianchi F, Migliore L. Genotoxic and epigenetic mechanisms in arsenic carcinogenicity. Arch Toxicol 2014; 88:1043-67. [PMID: 24691704 DOI: 10.1007/s00204-014-1233-7] [Citation(s) in RCA: 92] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2013] [Accepted: 03/18/2014] [Indexed: 02/06/2023]
Abstract
Arsenic is a human carcinogen with weak mutagenic properties that induces tumors through mechanisms not yet completely understood. People worldwide are exposed to arsenic-contaminated drinking water, and epidemiological studies showed a high percentage of lung, bladder, liver, and kidney cancer in these populations. Several mechanisms by which arsenical compounds induce tumorigenesis were proposed including genotoxic damage and chromosomal abnormalities. Over the past decade, a growing body of evidence indicated that epigenetic modifications have a role in arsenic-inducing adverse effects on human health. The main epigenetic mechanisms are DNA methylation in gene promoter regions that regulate gene expression, histone tail modifications that regulate the accessibility of transcriptional machinery to genes, and microRNA activity (noncoding RNA able to modulate mRNA translation). The "double capacity" of arsenic to induce mutations and epimutations could be the main cause of arsenic-induced carcinogenesis. The aim of this review is to better clarify the mechanisms of the initiation and/or the promotion of arsenic-induced carcinogenesis in order to understand the best way to perform an early diagnosis and a prompt prevention that is the key point for protecting arsenic-exposed population. Studies on arsenic-exposed population should be designed in order to examine more comprehensively the presence and consequences of these genetic/epigenetic alterations.
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Affiliation(s)
- Elisa Bustaffa
- Unit of Environmental Epidemiology and Diseases Registries, Institute of Clinical Physiology, National Council of Research, Via Moruzzi 1, 56123, Pisa, Italy
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43
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SPE speciation of inorganic arsenic in rice followed by hydride-generation atomic fluorescence spectrometric quantification. Talanta 2014; 119:202-6. [DOI: 10.1016/j.talanta.2013.11.016] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2013] [Revised: 11/04/2013] [Accepted: 11/05/2013] [Indexed: 11/23/2022]
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Rehman K, Fu YJ, Zhang YF, Wang QQ, Wu B, Wu Y, Zhou XY, Sun WH, Sun TF, Naranmandura H. Trivalent methylated arsenic metabolites induce apoptosis in human myeloid leukemic HL-60 cells through generation of reactive oxygen species. Metallomics 2014; 6:1502-12. [DOI: 10.1039/c4mt00119b] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Trivalent arsenic metabolites mediate HL-60 cell apoptosis via ROS.
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Affiliation(s)
- Kanwal Rehman
- Department of Toxicology
- School of Medicine and Public Health
- Zhejiang University
- Hangzhou 310058, China
- College of Pharmaceutical Sciences
| | - Yu Jie Fu
- College of Pharmaceutical Sciences
- Zhejiang University
- Hangzhou 310058, China
| | - Yan Fang Zhang
- College of Pharmaceutical Sciences
- Zhejiang University
- Hangzhou 310058, China
| | - Qian Qian Wang
- College of Pharmaceutical Sciences
- Zhejiang University
- Hangzhou 310058, China
| | - Bin Wu
- College of Pharmaceutical Sciences
- Zhejiang University
- Hangzhou 310058, China
- Ocean College
- Zhejiang University
| | - Yuan Wu
- College of Pharmaceutical Sciences
- Zhejiang University
- Hangzhou 310058, China
| | - Xin Yi Zhou
- College of Pharmaceutical Sciences
- Zhejiang University
- Hangzhou 310058, China
| | - Wu Hui Sun
- College of Pharmaceutical Sciences
- Zhejiang University
- Hangzhou 310058, China
| | - Tian Fu Sun
- College of Pharmaceutical Sciences
- Zhejiang University
- Hangzhou 310058, China
| | - Hua Naranmandura
- Department of Toxicology
- School of Medicine and Public Health
- Zhejiang University
- Hangzhou 310058, China
- College of Pharmaceutical Sciences
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Leffers L, Ebert F, Taleshi MS, Francesconi KA, Schwerdtle T. In vitro toxicological characterization of two arsenosugars and their metabolites. Mol Nutr Food Res 2013; 57:1270-82. [PMID: 23564523 PMCID: PMC3739928 DOI: 10.1002/mnfr.201200821] [Citation(s) in RCA: 62] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2012] [Revised: 01/31/2013] [Accepted: 02/04/2013] [Indexed: 12/31/2022]
Abstract
SCOPE In their recently published Scientific Opinion on Arsenic in Food, the European Food Safety Authority concluded that a risk assessment for arsenosugars is currently not possible, largely because of the lack of relevant toxicological data. To address this issue, we carried out a toxicological in vitro characterization of two arsenosugars and six arsenosugar metabolites. METHODS AND RESULTS The highly pure synthesized arsenosugars, DMA(V) -sugar-glycerol and DMA(V) -sugar-sulfate, investigated in this study, as well as four metabolites, oxo-dimethylarsenoacetic acid (oxo-DMAA(V) ), oxo-dimethylarsenoethanol (oxo-DMAE(V) ), thio-DMAA(V) and thio-DMAE(V) , exerted neither cytotoxicity nor genotoxicity up to 500 μM exposure in cultured human bladder cells. However, two arsenosugar metabolites, namely dimethyl-arsinic acid (DMA(V) ) and thio-dimethylarsinic acid (thio-DMA(V) ), were toxic to the cells; thio-DMA(V) was even slightly more cytotoxic than arsenite. Additionally, intestinal bioavailability of the arsenosugars was assessed applying the Caco-2 intestinal barrier model. The observed low, but significant transfer rates of the arsenosugars across the barrier model provide further evidence that arsenosugars are intestinally bioavailable. CONCLUSION In a cellular system that metabolizes arsenosugars, cellular toxicity likely arises. Thus, in strong contrast to arsenobetaine, arsenosugars cannot be categorized as nontoxic for humans and a risk to human health cannot be excluded.
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Affiliation(s)
- Larissa Leffers
- Graduate School of Chemistry, University of MünsterMünster, Germany
- Institute of Food Chemistry, University of MünsterMünster, Germany
| | - Franziska Ebert
- Institute of Food Chemistry, University of MünsterMünster, Germany
| | - Mojtaba S Taleshi
- Institute of Chemistry – Analytical Chemistry, University of GrazGraz, Austria
| | - Kevin A Francesconi
- Institute of Chemistry – Analytical Chemistry, University of GrazGraz, Austria
| | - Tanja Schwerdtle
- Institute of Food Chemistry, University of MünsterMünster, Germany
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Bomhard EM, Gelbke HP, Schenk H, Williams GM, Cohen SM. Evaluation of the carcinogenicity of gallium arsenide. Crit Rev Toxicol 2013; 43:436-66. [DOI: 10.3109/10408444.2013.792329] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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47
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Singh AL, Singh VK, Srivastava A. Effect of arsenic contaminated drinking water on human chromosome: a case study. Indian J Clin Biochem 2013; 28:422-5. [PMID: 24426248 DOI: 10.1007/s12291-013-0330-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2012] [Accepted: 04/17/2013] [Indexed: 11/29/2022]
Abstract
Arsenic contamination of ground water has become a serious problem all over the world. Large number of people from Uttar Pradesh, Bihar and West Bengal of India are suffering due to consumption of arsenic contaminated drinking water. Study was carried out on 30 individuals residing in Ballia District, UP where the maximum concentration of arsenic was observed around 0.37 ppm in drinking water. Blood samples were collected from them to find out the problem related with arsenic. Cytogenetic study of the blood samples indicates that out of 30, two persons developed Klinefelter syndrome.
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Affiliation(s)
- Asha Lata Singh
- Environmental Science, Department of Botany, Banaras Hindu University, Varanasi, 221001 India
| | - Vipin Kumar Singh
- Environmental Science, Department of Botany, Banaras Hindu University, Varanasi, 221001 India
| | - Anushree Srivastava
- Department of Moleculer and Human Genetics, Banaras Hindu University, Varanasi, 221001 India
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Kumar A, Kesari VP, Khan PK. Fish micronucleus assay to assess genotoxic potential of arsenic at its guideline exposure in aquatic environment. Biometals 2013; 26:337-46. [DOI: 10.1007/s10534-013-9620-8] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2012] [Accepted: 03/07/2013] [Indexed: 01/12/2023]
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Watts MJ, Barlow TS, Button M, Sarkar SK, Bhattacharya BD, Alam MA, Gomes A. Arsenic speciation in polychaetes (Annelida) and sediments from the intertidal mudflat of Sundarban mangrove wetland, India. ENVIRONMENTAL GEOCHEMISTRY AND HEALTH 2013; 35:13-25. [PMID: 22736103 DOI: 10.1007/s10653-012-9471-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/03/2011] [Accepted: 06/06/2012] [Indexed: 06/01/2023]
Abstract
This paper documents the concentration of total arsenic and individual arsenic species in four soft-bottom benthic polychaetes (Perenereis cultifera, Ganganereis sootai, Lumbrinereis notocirrata and Dendronereis arborifera) along with host sediments from Sundarban mangrove wetland, India. An additional six sites were considered exclusively for surface sediments for this purpose. Polychaetes were collected along with the host sediments and measured for their total arsenic content using inductively coupled plasma mass spectrometry. Arsenic concentrations in polychaete body tissues varied greatly, suggesting species-specific characteristics and inherent peculiarities in arsenic metabolism. Arsenic was generally present in polychaetes as arsenate (As(V) ranges from 0.16 to 0.50 mg kg(-1)) or arsenite (As(III) ranges from 0.10 to 0.41 mg kg(-1)) (30-53 % as inorganic As) and dimethylarsinic acid (DMA(V) <1-25 %). Arsenobetaine (AB < 16 %), and PO(4)-arsenoriboside (8-48 %) were also detected as minor constituents, whilst monomethylarsonic acid (MA(V)) was not detected in any of the polychaetes. The highest total As (14.7 mg kg(-1) dry wt) was observed in the polychaete D. arborifera collected from the vicinity of a sewage outfall in which the majority of As was present as an uncharacterised compound (10.3 mg kg(-1) dry wt) eluted prior to AB. Host sediments ranged from 2.5 to 10.4 mg kg(-1) of total As. This work supports the importance of speciation analysis of As, because of the ubiquitous occurrence of this metalloid in the environment, and its variable toxicity depending on chemical form. It is also the first work to report the composition of As species in polychaetes from the Indian Sundarban wetlands.
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Affiliation(s)
- M J Watts
- British Geological Survey, Nottingham, UK.
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50
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Wang H, Xi S, Xu Y, Wang F, Zheng Y, Li B, Li X, Zheng Q, Sun G. Sodium arsenite induces cyclooxygenase-2 expression in human uroepithelial cells through MAPK pathway activation and reactive oxygen species induction. Toxicol In Vitro 2013; 27:1043-8. [PMID: 23376440 DOI: 10.1016/j.tiv.2013.01.012] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2012] [Revised: 10/22/2012] [Accepted: 01/07/2013] [Indexed: 10/27/2022]
Abstract
Arsenic can induce reactive oxygen species (ROS) leading to oxidative stress and carcinogenesis. Bladder is one of the major target organs of arsenic, and cyclooxygenase-2 (COX-2) may play an important role in arsenic-induced bladder cancer. However, the mechanism by which arsenic induces COX-2 in bladder cells remains unclear. This study aimed at investigating arsenic-mediated intracellular redox status and signaling cascades leading to COX-2 induction in human uroepithelial cells (SV-HUC-1). SV-HUC-1 cells were exposed to sodium arsenite and COX-2 expression, mitogen-activated protein kinase (MAPK) phosphorylation, glutathione (GSH) levels, ROS induction and Nrf2 expression were quantified. Our results demonstrate that arsenite (1-10 μM) elevates COX-2 expression, GSH levels, ROS and Nrf2 expression. Arsenite treatment for 24h stimulates phosphorylation of ERK and p38, but not JNK in SV-HUC-1 cells. Induction of Cox-2 mRNA levels by arsenite was attenuated by inhibitors of ERK, p38 and JNK. Arsenite-induced ROS generation and COX-2 expression were significantly attenuated by treatment with melatonin (a ROS scavenger), but enhanced by DL-buthionine-(S, R)-sulfoximine (BSO, an inhibitor of gamma-glutamylcysteine synthetase (γ-GCS) resulting in lower GSH and increased ROS levels). These data indicate that arsenite promotes an induction of ROS, which results in an induction of COX-2 expression through activation of the MAPK pathway.
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Affiliation(s)
- Huihui Wang
- Department of Occupational and Environmental Health, School of Public Health, China Medical University, Shenyang, Liaoning, PR China
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