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Yadav S, Choudhary N, Sonpal V, Paital AR. Carbon Dots-Embedded Silica Tubes: An Excitation-Independent Yellow-Emitting Turn-On Probe for Simultaneous Detection and Removal of Inorganic Arsenic with In Vivo Tracking in Living Organisms. Small 2024; 20:e2307491. [PMID: 37880860 DOI: 10.1002/smll.202307491] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2023] [Revised: 10/14/2023] [Indexed: 10/27/2023]
Abstract
The environmental monitoring and remediation of highly toxic inorganic arsenic species in natural water are needed for the benefit of the ecosystem. Current studies on arsenic detection and removal often employ separate materials, which exhibit blue luminescence with fluorescence quenching, making them unsuitable for biological and environmental samples. In this study, carbon dot-embedded mesoporous silica tubes functionalized with melamine are synthesized to address these limitations and enable specific and turn-on probing of inorganic arsenic. The newly synthesized material demonstrates excitation-independent yellow luminescence and can effectively detect both As (III) and As (V) at low detection limits (11 × 10-9 m, 11.2 × 10-9 m), well below the prescribed threshold limits in drinking water. It also exhibits a high adsorption capacity (≈125, 159 mg g-1 ) with fast kinetics. The material's applicability in environmental samples is validated through the successful quantification of arsenic in real samples with satisfactory recoveries. Moreover, the material shows recyclability for reuse, as demonstrated by its arsenic adsorption and desorption for several cycles under basic conditions. Additionally, the material's capability for monitoring arsenic in a biological sample (Artemia salina) is demonstrated through fluorescence imaging. The encouraging outcomes underscore the material's potential use in monitoring and mitigating arsenic in aqueous systems.
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Affiliation(s)
- Sanjay Yadav
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
- Salt and Marine Chemicals Division, CSIR-Central Salt & Marine Chemicals Research Institute, G.B. Marg, Bhavnagar, Gujarat, 364002, India
| | - Nishu Choudhary
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
- Salt and Marine Chemicals Division, CSIR-Central Salt & Marine Chemicals Research Institute, G.B. Marg, Bhavnagar, Gujarat, 364002, India
| | - Vasavdutta Sonpal
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
- Analytical and Environmental Science Division & Centralized Instrument Facility, CSIR-Central Salt & Marine Chemicals Research Institute, Bhavnagar, Gujarat, 364002, India
| | - Alok Ranjan Paital
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
- Salt and Marine Chemicals Division, CSIR-Central Salt & Marine Chemicals Research Institute, G.B. Marg, Bhavnagar, Gujarat, 364002, India
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2
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Sijko-Szpańska M, Kozłowska L. Analysis of Relationships between Metabolic Changes and Selected Nutrient Intake in Women Environmentally Exposed to Arsenic. Metabolites 2024; 14:75. [PMID: 38276310 PMCID: PMC10820439 DOI: 10.3390/metabo14010075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Revised: 01/17/2024] [Accepted: 01/20/2024] [Indexed: 01/27/2024] Open
Abstract
Nutrients involved in the metabolism of inorganic arsenic (iAs) may play a crucial role in mitigating the adverse health effects associated with such exposure. Consequently, the objective of this study was to analyze the association between the intake levels of nutrients involved in iAs metabolism and alterations in the metabolic profile during arsenic exposure. The study cohort comprised environmentally exposed women: WL (lower total urinary arsenic (As), n = 73) and WH (higher As, n = 73). The analysis included urinary untargeted metabolomics (conducted via liquid chromatography-mass spectrometry) and the assessment of nutrient intake involved in iAs metabolism, specifically methionine, vitamins B2, B6, and B12, folate, and zinc (based on 3-day dietary records of food and beverages). In the WL group, the intake of all analyzed nutrients exhibited a negative correlation with 5 metabolites (argininosuccinic acid, 5-hydroxy-L-tryptophan, 11-trans-LTE4, mevalonic acid, aminoadipic acid), while in the WH group, it correlated with 10 metabolites (5-hydroxy-L-tryptophan, dihyroxy-1H-indole glucuronide I, 11-trans-LTE4, isovalerylglucuronide, 18-oxocortisol, 3-hydroxydecanedioic acid, S-3-oxodecanoyl cysteamine, L-arginine, p-cresol glucuronide, thromboxane B2). Furthermore, nutrient intake demonstrated a positive association with 3 metabolites in the WL group (inosine, deoxyuridine, glutamine) and the WH group (inosine, N-acetyl-L-aspartic acid, tetrahydrodeoxycorticosterone). Altering the intake of nutrients involved in iAs metabolism could be a pivotal factor in reducing the negative impact of arsenic exposure on the human body. This study underscores the significance of maintaining adequate nutrient intake, particularly in populations exposed to arsenic.
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Affiliation(s)
- Monika Sijko-Szpańska
- Laboratory of Human Metabolism Research, Department of Dietetics, Institute of Human Nutrition Sciences, Warsaw University of Life Sciences, 02776 Warsaw, Poland
| | - Lucyna Kozłowska
- Laboratory of Human Metabolism Research, Department of Dietetics, Institute of Human Nutrition Sciences, Warsaw University of Life Sciences, 02776 Warsaw, Poland
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Sprong RC, van den Brand AD, van Donkersgoed G, Blaznik U, Christodoulou D, Crépet A, da Graça Dias M, Hamborg Jensen B, Morretto A, Rauscher-Gabernig E, Ruprich J, Sokolić D, van Klaveren JD, Luijten M, Mengelers MJB. Combined chronic dietary exposure to four nephrotoxic metals exceeds tolerable intake levels in the adult population of 10 European countries. Food Addit Contam Part A Chem Anal Control Expo Risk Assess 2023; 40:1568-1588. [PMID: 37922338 DOI: 10.1080/19440049.2023.2272716] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Accepted: 10/12/2023] [Indexed: 11/05/2023]
Abstract
A mixture risk assessment (MRA) for four metals relevant to chronic kidney disease (CKD) was performed. Dietary exposure to cadmium or lead alone exceeded the respective reference values in the majority of the 10 European countries included in our study. When the dietary exposure to those metals and inorganic mercury and inorganic arsenic was combined following a classical or personalised modified reference point index (mRPI) approach, not only high exposure (95th percentile) estimates but also the mean exceeded the tolerable intake of the mixture in all countries studied. Cadmium and lead contributed most to the combined exposure, followed by inorganic arsenic and inorganic mercury. The use of conversion factors for inorganic arsenic and inorganic mercury from total arsenic and total mercury concentration data was a source of uncertainty. Other uncertainties were related to the use of different principles to derive reference points. Yet, MRA at the target organ level, as performed in our study, could be used as a way to efficiently prioritise assessment groups for higher-tier MRA. Since the combined exposure to the four metals exceeded the tolerable intake, we recommend a refined MRA based on a common, specific nephrotoxic effect and relative potency factors (RPFs) based on a similar effect size.
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Affiliation(s)
- R Corinne Sprong
- Department of Chemical Food Safety, RIVM, National Institute for Public Health and the Environment, Bilthoven, the Netherlands
| | - Annick D van den Brand
- Centre for Health Protection, RIVM, National Institute for Public Health and the Environment, Bilthoven, the Netherlands
| | - Gerda van Donkersgoed
- Department of Chemical Food Safety, RIVM, National Institute for Public Health and the Environment, Bilthoven, the Netherlands
| | - Urska Blaznik
- National Institute of Public Health, Environmental Health Centre, Ljubljana, Slovenia
| | | | - Amélie Crépet
- Risk Assessment Department, Methodology and Studies Unit, ANSES, French Agency for Food, Environmental and Occupational Health and Safety, Maisons-Alfort, France
| | | | - Bodil Hamborg Jensen
- Technical University of Denmark, National Food Institute, Research group for Chemical Risk Assessment and GMO, Lyngby, Denmark
| | - Angelo Morretto
- Department of Cardiac Thoracic Vascular and Public Health Sciences, University of Padova and Occupational Health Unit, Padova University Hospital, Padova, Italy
| | | | - Jiri Ruprich
- National Institute of Public Health in Prague, Centre for Health, Nutrition and Food, Brno, Czech Republic
| | - Darja Sokolić
- HAPIH, Croatian Agency for Agriculture and Food, Osijek, Croatia
| | - Jacob D van Klaveren
- Department of Chemical Food Safety, RIVM, National Institute for Public Health and the Environment, Bilthoven, the Netherlands
| | - Mirjam Luijten
- Centre for Health Protection, RIVM, National Institute for Public Health and the Environment, Bilthoven, the Netherlands
| | - Marcel J B Mengelers
- Department of Chemical Food Safety, RIVM, National Institute for Public Health and the Environment, Bilthoven, the Netherlands
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Huang F, Ding G, Yuan Y, Zhao L, Ding W, Wu S. PTEN Overexpression Alters Autophagy Levels and Slows Sodium Arsenite-Induced Hepatic Stellate Cell Fibrosis. Toxics 2023; 11:578. [PMID: 37505544 PMCID: PMC10386595 DOI: 10.3390/toxics11070578] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Revised: 06/27/2023] [Accepted: 06/28/2023] [Indexed: 07/29/2023]
Abstract
Exposure to inorganic arsenic remains a global public health problem. The liver is the main target organ, leading to arsenic-induced liver fibrosis. Phosphatase and tensin homology deleted on chromosome ten (PTEN) may participate in arsenic-induced liver fibrosis by regulating autophagy, but the exact mechanisms remain unclear. We established a mouse model of arsenic poisoning through their drinking water and a fibrosis model using the human hepatic stellate cell line LX-2 through NaAsO2 exposure for 24 h. Masson staining measured liver fibrosis. The cells were transfected with a PTEN overexpression plasmid. Western blot and qRT-PCR determined the levels of protein/mRNA expression. Fibrosis was evident in both the mouse model and arsenic-exposed LX-2 cells. NaAsO2 upregulated expression of autophagic markers microtubule-associated protein light chain A/B (LC3), recombinant human autophagy effector protein (Beclin-1), and hairy and enhancer of split homolog-1 (HES1), but downregulated PTEN. Alongside this, α-smooth muscle actin (α-SMA) expression was significantly upregulated by NaAsO2. PTEN overexpression altered NaAsO2-induced autophagy and downregulated LC3 and Beclin-1. While Notch1, HES1, α-SMA, and collagen I expression were all downregulated in the NaAsO2 groups. Therefore, PTEN overexpression might decrease autophagy and inhibit fibrosis progression caused by arsenic, and the NOTCH1/HES1 pathway is likely involved.
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Affiliation(s)
- Fei Huang
- Department of Occupational and Environmental Health, College of Public Health, Xinjiang Medical University, No. 567 Shangde North Road, Shuimogou District, Urumqi 830011, China
| | - Guanxin Ding
- Department of Occupational and Environmental Health, College of Public Health, Xinjiang Medical University, No. 567 Shangde North Road, Shuimogou District, Urumqi 830011, China
| | - Yanjie Yuan
- The First Division Hospital of Xinjiang Production and Construction Corps, No. 4, Jiankang Road, Aksu City 843000, China
| | - Lijun Zhao
- Department of Occupational and Environmental Health, College of Public Health, Xinjiang Medical University, No. 567 Shangde North Road, Shuimogou District, Urumqi 830011, China
| | - Wenmeng Ding
- Department of Occupational and Environmental Health, College of Public Health, Xinjiang Medical University, No. 567 Shangde North Road, Shuimogou District, Urumqi 830011, China
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Rahman MM, Rinklebe J, Naidu R. Arsenic speciation as well as toxic and nutrient elements in pantavat (overnight steeped rice). Environ Pollut 2023:121901. [PMID: 37244529 DOI: 10.1016/j.envpol.2023.121901] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/22/2023] [Revised: 05/22/2023] [Accepted: 05/24/2023] [Indexed: 05/29/2023]
Abstract
This study assessed the effect of soaking on the retention and removal of arsenic (As) along with other toxic elements and nutrients in three types of soaked rice or overnight steeped rice (pantavat), as this food dish was highlighted on the Australian MasterChef program in 2021 as a popular recipe. Results showed that brown rice contained twice as much As as basmati and kalijira rice. Cooking with As-free tap water using the rice cooker method removed up to 30% of As from basmati rice. Around 21-29% removal of total As was observed in soaked basmati, brown, and kalijira rice. However, while 13% of inorganic As was removed from basmati and brown rice, no changes were noted in the kalijira rice. Regarding nutrient elements, both cooking and soaking rice caused significant enrichment of calcium (Ca) whereas potassium (K), molybdenum (Mo) and selenium (Se) were reduced substantially for the tested rice varieties. The nutrients magnesium (Mg), iron (Fe), sulfur (S) and phosphorus (P) did not significantly change. The results indicated that soaking can minimize up to 30% As and soaked rice reduced few nutrients like K, Mo and Se. Data in this study highlights the retention and/or loss of toxic and beneficial nutrients elements in pantavat when As-free water is used to prepare this food.
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Affiliation(s)
- Mohammad Mahmudur Rahman
- Global Centre for Environmental Remediation (GCER), College of Engineering, Science and Environment, The University of Newcastle, Callaghan, NSW 2308, Australia; crc for Contamination Assessment and Remediation of the Environment (crcCARE), The University of Newcastle, Callaghan, NSW, 2308, Australia; Department of General Educational Development, Faculty of Science & Information Technology, Daffodil International University, Ashulia, Savar, Dhak, 1207, Bangladesh.
| | - Jörg Rinklebe
- University of Wuppertal, School of Architecture and Civil Engineering, Institute of Foundation Engineering, Water and Waste Management, Laboratory of Soil and Groundwater Management, 42285, Wuppertal, Germany
| | - Ravi Naidu
- Global Centre for Environmental Remediation (GCER), College of Engineering, Science and Environment, The University of Newcastle, Callaghan, NSW 2308, Australia; crc for Contamination Assessment and Remediation of the Environment (crcCARE), The University of Newcastle, Callaghan, NSW, 2308, Australia
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Kollander B, Rodushkin I, Sundström B. Multi-Element Assessment of Potentially Toxic and Essential Elements in New and Traditional Food Varieties in Sweden. Foods 2023; 12:foods12091831. [PMID: 37174369 PMCID: PMC10178162 DOI: 10.3390/foods12091831] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Revised: 04/21/2023] [Accepted: 04/24/2023] [Indexed: 05/15/2023] Open
Abstract
With the global movement toward the consumption of a more sustainable diet that includes a higher proportion of plant-based foods, it is important to determine how such a change could alter the intake of cadmium and other elements, both essential and toxic. In this study, we report on the levels of a wide range of elements in foodstuffs that are both traditional and "new" to the Swedish market. The data were obtained using analytical methods providing very low detection limits and include market basket data for different food groups to provide the general levels in foods consumed in Sweden and to facilitate comparisons among traditional and "new" food items. This dataset could be used to estimate changes in nutritional intake as well as exposure associated with a change in diet. The concentrations of known toxic and essential elements are provided for all the food matrices studied. Moreover, the concentrations of less routinely analyzed elements are available in some matrices. Depending on the food variety, the dataset includes the concentrations of inorganic arsenic and up to 74 elements (Ag, Al, As, Au, B, Ba, Be, Bi, Ca, Cd, Co, Cr, Cs, Cu, Fe, Ga, Ge, Hf, Hg, K, Li, Mg, Mn, Mo, Na, Nb, Ni, P, Pb, Rb, S, Sb, Sc, Se, Si, Sn, Sr, Ta, Te, Th, Ti, Tl, U, W, V, Y, Zn, Zr, rare Earth elements (REEs) (Ce, Dy, Er, Eu, Gd, Ho, La, Lu, Nd, Pr, Sm, Tb, Tm, and Yb), platinum group elements (PGEs) (Ir, Os, Pd, Pr, Pt, Re, Rh, Ru, and Pr), and halogens (Br, Cl, and I)). The main focus (and thus the most detailed information on variation within a given food group) is on foods that are currently the largest contributors to dietary cadmium exposure in Sweden, such as pasta, rice, potato products, and different sorts of bread. Additionally, elemental concentrations in selected food varieties regarded as relatively new or "novel" to the Swedish market are provided, including teff flour, chia seeds, algae products, and gluten-free products.
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Affiliation(s)
| | - Ilia Rodushkin
- Division of Geosciences, Luleå University of Technology, SE-971 87 Luleå, Sweden
- ALS Scandinavia AB, SE-971 87 Luleå, Sweden
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7
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Silva LJG, Pereira AMPT, Duarte S, Pedro I, Perdigão C, Silva A, Lino CM, Almeida A, Pena A. Mycotoxins in Rice Correlate with Other Contaminants? A Pilot Study of the Portuguese Scenario and Human Risk Assessment. Toxins (Basel) 2023; 15:toxins15040291. [PMID: 37104229 PMCID: PMC10140980 DOI: 10.3390/toxins15040291] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2023] [Revised: 04/04/2023] [Accepted: 04/13/2023] [Indexed: 04/28/2023] Open
Abstract
Rice is the second most important cereal crop and is vital for the diet of billions of people. However, its consumption can increase human exposure to chemical contaminants, namely mycotoxins and metalloids. Our goal was to evaluate the occurrence and human exposure of aflatoxin B1 (AFB1), ochratoxin A (OTA), zearalenone (ZEN), and inorganic arsenic (InAs) in 36 rice samples produced and commercialized in Portugal and evaluate their correlation. The analysis of mycotoxins involved ELISA, with limits of detection (LODs) of 0.8, 1 and 1.75 μg kg-1 for OTA, AFB1, and ZEN, respectively. InAs analysis was carried out by inductively coupled plasma mass spectrometry (ICP-MS; LOD = 3.3 μg kg-1). No sample showed contamination by OTA. AFB1 was present in 2 (4.8%) samples (1.96 and 2.20 μg kg-1), doubling the European maximum permitted level (MPL). Concerning ZEN, 88.89% of the rice samples presented levels above the LOD up to 14.25 µg kg-1 (average of 2.75 µg kg-1). Regarding InAs, every sample presented concentration values above the LOD up to 100.0 µg kg-1 (average of 35.3 µg kg-1), although none surpassed the MPL (200 µg kg-1). No correlation was observed between mycotoxins and InAs contamination. As for human exposure, only AFB1 surpassed the provisional maximum tolerable daily intake. Children were recognized as the most susceptible group.
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Affiliation(s)
- Liliana J G Silva
- LAQV, REQUIMTE, Laboratory of Bromatology and Pharmacognosy, Faculty of Pharmacy, University of Coimbra, Polo III, Azinhaga de Sta. Comba, 3000-548 Coimbra, Portugal
| | - André M P T Pereira
- LAQV, REQUIMTE, Laboratory of Bromatology and Pharmacognosy, Faculty of Pharmacy, University of Coimbra, Polo III, Azinhaga de Sta. Comba, 3000-548 Coimbra, Portugal
| | - Sofia Duarte
- LAQV, REQUIMTE, Laboratory of Bromatology and Pharmacognosy, Faculty of Pharmacy, University of Coimbra, Polo III, Azinhaga de Sta. Comba, 3000-548 Coimbra, Portugal
- Department of Veterinary Sciences, Vasco da Gama Research Center, Vasco da Gama University School, 3020-210 Coimbra, Portugal
| | - Inês Pedro
- LAQV, REQUIMTE, Laboratory of Bromatology and Pharmacognosy, Faculty of Pharmacy, University of Coimbra, Polo III, Azinhaga de Sta. Comba, 3000-548 Coimbra, Portugal
| | - Catarina Perdigão
- LAQV, REQUIMTE, Laboratory of Bromatology and Pharmacognosy, Faculty of Pharmacy, University of Coimbra, Polo III, Azinhaga de Sta. Comba, 3000-548 Coimbra, Portugal
| | - Alexandra Silva
- LAQV, REQUIMTE, Laboratory of Bromatology and Pharmacognosy, Faculty of Pharmacy, University of Coimbra, Polo III, Azinhaga de Sta. Comba, 3000-548 Coimbra, Portugal
| | - Celeste M Lino
- LAQV, REQUIMTE, Laboratory of Bromatology and Pharmacognosy, Faculty of Pharmacy, University of Coimbra, Polo III, Azinhaga de Sta. Comba, 3000-548 Coimbra, Portugal
| | - Anabela Almeida
- Department of Veterinary Sciences, Vasco da Gama Research Center, Vasco da Gama University School, 3020-210 Coimbra, Portugal
- CIBIT-Coimbra Institute for Biomedical Imaging and Translational Research, University of Coimbra, 3000-548 Coimbra, Portugal
| | - Angelina Pena
- LAQV, REQUIMTE, Laboratory of Bromatology and Pharmacognosy, Faculty of Pharmacy, University of Coimbra, Polo III, Azinhaga de Sta. Comba, 3000-548 Coimbra, Portugal
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Núñez-Sánchez MÁ, Jiménez-Méndez A, Suárez-Cortés M, Martínez-Sánchez MA, Sánchez-Solís M, Blanco-Carnero JE, Ruiz-Alcaraz AJ, Ramos-Molina B. Inherited Epigenetic Hallmarks of Childhood Obesity Derived from Prenatal Exposure to Obesogens. Int J Environ Res Public Health 2023; 20:ijerph20064711. [PMID: 36981620 PMCID: PMC10048338 DOI: 10.3390/ijerph20064711] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Revised: 03/04/2023] [Accepted: 03/06/2023] [Indexed: 06/01/2023]
Abstract
Childhood obesity has reached epidemic levels in developed countries and is becoming a major cause for concern in the developing world. The causes of childhood obesity are complex and multifactorial, involving the interaction between individual genetics and environmental and developmental factors. Among the environmental factors, there is a growing interest in understanding the possible relationship between the so-called environmental obesogens and the development of obesity in children. Exposure to these obesogens such as phthalates, bisphenol A, or parabens, has been identified as a promoter of obesity through different mechanisms such as the alteration of adipocyte development from mesenchymal progenitors, the interference with hormone receptors, and induced inflammation. However, less attention has been paid to the inheritance of epigenetic modifications due to maternal exposure to these compounds during pregnancy. Thus, the aim of this review is to summarize the current knowledge of epigenetic modifications due to maternal exposure to those obesogens during pregnancy as well as their potential implication on long-term obesity development in the offspring and transgenerational inheritance of epiphenotypes.
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Affiliation(s)
- María Á Núñez-Sánchez
- Obesity and Metabolism Research Laboratory, Biomedical Research Institute of Murcia (IMIB), 30120 Murcia, Spain
| | - Almudena Jiménez-Méndez
- Department of Obstetrics and Gynecology, 'Virgen de la Arrixaca' University Clinical Hospital, 30120 Murcia, Spain
| | - María Suárez-Cortés
- Department of Nursing, Faculty of Nursing, University of Murcia, El Palmar, 30120 Murcia, Spain
| | - María A Martínez-Sánchez
- Obesity and Metabolism Research Laboratory, Biomedical Research Institute of Murcia (IMIB), 30120 Murcia, Spain
| | - Manuel Sánchez-Solís
- Group of Pediatric Research, Biomedical Research Institute of Murcia (IMIB), 30120 Murcia, Spain
- Respiratory and Allergy Units, Arrixaca Children's University Hospital, University of Murcia, 30120 Murcia, Spain
| | - José E Blanco-Carnero
- Department of Obstetrics and Gynecology, 'Virgen de la Arrixaca' University Clinical Hospital, 30120 Murcia, Spain
- Gynecology, Reproduction and Maternal-Fetal Medicine Research Group, Biomedical Research Institute of Murcia (IMIB), 30120 Murcia, Spain
| | - Antonio J Ruiz-Alcaraz
- Department of Biochemistry, Molecular Biology B and Immunology, School of Medicine, University of Murcia, Regional Campus of International Excellence "Campus Mare Nostrum", 30100 Murcia, Spain
| | - Bruno Ramos-Molina
- Obesity and Metabolism Research Laboratory, Biomedical Research Institute of Murcia (IMIB), 30120 Murcia, Spain
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Singhal S, Garrett SH, Somji S, Schaefer K, Bansal B, Gill JS, Singhal SK, Sens DA. Arsenite Exposure to Human RPCs (HRTPT) Produces a Reversible Epithelial Mesenchymal Transition (EMT): In-Vitro and In-Silico Study. Int J Mol Sci 2023; 24:5092. [PMID: 36982180 PMCID: PMC10048886 DOI: 10.3390/ijms24065092] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2023] [Revised: 02/28/2023] [Accepted: 03/01/2023] [Indexed: 03/30/2023] Open
Abstract
The human kidney is known to possess renal progenitor cells (RPCs) that can assist in the repair of acute tubular injury. The RPCs are sparsely located as single cells throughout the kidney. We recently generated an immortalized human renal progenitor cell line (HRTPT) that co-expresses PROM1/CD24 and expresses features expected on RPCs. This included the ability to form nephrospheres, differentiate on the surface of Matrigel, and undergo adipogenic, neurogenic, and osteogenic differentiation. These cells were used in the present study to determine how the cells would respond when exposed to nephrotoxin. Inorganic arsenite (iAs) was chosen as the nephrotoxin since the kidney is susceptible to this toxin and there is evidence of its involvement in renal disease. Gene expression profiles when the cells were exposed to iAs for 3, 8, and 10 passages (subcultured at 1:3 ratio) identified a shift from the control unexposed cells. The cells exposed to iAs for eight passages were then referred with growth media containing no iAs and within two passages the cells returned to an epithelial morphology with strong agreement in differential gene expression between control and cells recovered from iAs exposure. Results show within three serial passages of the cells exposed to iAs there was a shift in morphology from an epithelial to a mesenchymal phenotype. EMT was suggested based on an increase in known mesenchymal markers. We found RPCs can undergo EMT when exposed to a nephrotoxin and undergo MET when the agent is removed from the growth media.
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Affiliation(s)
- Sonalika Singhal
- Department of Pathology, School of Medicine and Health Sciences, University of North Dakota, Grand Forks, ND 58203, USA
| | - Scott H. Garrett
- Department of Pathology, School of Medicine and Health Sciences, University of North Dakota, Grand Forks, ND 58203, USA
| | - Seema Somji
- Department of Pathology, School of Medicine and Health Sciences, University of North Dakota, Grand Forks, ND 58203, USA
| | - Kalli Schaefer
- Department of Biomedical Engineering, School of Electrical Engineering and Computer Science, University of North Dakota, Grand Forks, ND 58203, USA
| | - Benu Bansal
- Department of Biomedical Engineering, School of Electrical Engineering and Computer Science, University of North Dakota, Grand Forks, ND 58203, USA
| | - Jappreet Singh Gill
- Department of Biomedical Engineering, School of Electrical Engineering and Computer Science, University of North Dakota, Grand Forks, ND 58203, USA
| | - Sandeep K. Singhal
- Department of Pathology, School of Medicine and Health Sciences, University of North Dakota, Grand Forks, ND 58203, USA
- Department of Biomedical Engineering, School of Electrical Engineering and Computer Science, University of North Dakota, Grand Forks, ND 58203, USA
| | - Donald A. Sens
- Department of Pathology, School of Medicine and Health Sciences, University of North Dakota, Grand Forks, ND 58203, USA
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10
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Chen J, Lei C, Nie D, Ge H, Li J, Lei C, Wang W. Inorganic arsenic exposure promotes malignant progression by HDAC6-mediated down-regulation of HTRA1. J Appl Toxicol 2023. [PMID: 36861143 DOI: 10.1002/jat.4457] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2022] [Revised: 02/23/2023] [Accepted: 02/23/2023] [Indexed: 03/03/2023]
Abstract
Inorganic arsenic (iAs) has been a human health concern and is associated with intestinal malignancies. However, the molecular mechanisms of the iAs-induced oncogenic process in intestine epithelial cells remain elusive, partly because of the known hormesis effect of arsenic. Here, we established that six-month exposure to iAs at a concentration similar to those found in contaminated drinking water could promote malignant characteristics, including enhanced proliferation and migration, resistance to apoptosis, and mesenchymal-like transition in Caco-2 cells. Transcriptome analysis and mechanism study revealed that key genes and pathways involved in cell adhesion, inflammation and oncogenic regulation were altered during chronic iAs exposure. Specifically, we uncovered that down-regulation of HTRA1 was essential for the iAs-induced acquisition of the cancer hallmarks. Further, we evidenced that the loss of HTRA1 during iAs-exposure could be restored by HDAC6 inhibition. Caco-2 cells with chronic exposure to iAs exhibited enhanced sensitivity to WT-161, a specific inhibitor of HDAC6, when used alone than in combination with a chemotherapeutic agent. These findings provide valuable information for understanding the mechanisms of arsenic-induced carcinogenesis and facilitating the health management of populations in arsenic-polluted areas.
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Affiliation(s)
- Jiafeng Chen
- Department of Immunology, College of Basic Medicine, Chongqing Medical University, Chongqing, China.,Chongqing Key Laboratory of Basic and Translational Research of Tumor Immunology, Chongqing Medical University, Chongqing, China
| | - Cece Lei
- Department of Immunology, College of Basic Medicine, Chongqing Medical University, Chongqing, China.,Chongqing Key Laboratory of Basic and Translational Research of Tumor Immunology, Chongqing Medical University, Chongqing, China
| | - Daibang Nie
- Department of Immunology, College of Basic Medicine, Chongqing Medical University, Chongqing, China.,Chongqing Key Laboratory of Basic and Translational Research of Tumor Immunology, Chongqing Medical University, Chongqing, China
| | - Huan Ge
- Department of Orthopedics, Affiliated Hospital of Xiangnan University, Chenzhou, China
| | - Jian Li
- Department of Orthopedics, Affiliated Hospital of Xiangnan University, Chenzhou, China
| | - Changbin Lei
- Department of Orthopedics, Affiliated Hospital of Xiangnan University, Chenzhou, China.,Heavy Metal Pollution and Cancer Prevention Technology Research Center, Chenzhou, China
| | - Wang Wang
- Department of Immunology, College of Basic Medicine, Chongqing Medical University, Chongqing, China.,Chongqing Key Laboratory of Basic and Translational Research of Tumor Immunology, Chongqing Medical University, Chongqing, China
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11
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Sijko M, Janasik B, Wąsowicz W, Kozłowska L. Metabolic Changes and Their Associations with Selected Nutrients Intake in the Group of Workers Exposed to Arsenic. Metabolites 2023; 13. [PMID: 36676995 DOI: 10.3390/metabo13010070] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Revised: 12/19/2022] [Accepted: 12/27/2022] [Indexed: 01/03/2023] Open
Abstract
Arsenic (As) exposure causes numerous adverse health effects, which can be reduced by the nutrients involved in the metabolism of iAs (inorganic As). This study was carried out on two groups of copper-smelting workers: WN, workers with a urinary total arsenic (tAs) concentration within the norm (n = 75), and WH, workers with a urinary tAs concentration above the norm (n = 41). This study aimed to analyze the association between the intake level of the nutrients involved in iAs metabolism and the signal intensity of the metabolites that were affected by iAs exposure. An untargeted metabolomics analysis was carried out on urine samples using liquid chromatography-mass spectrometry, and the intake of the nutrients was analyzed based on 3-day dietary records. Compared with the WN group, five pathways (the metabolism of amino acids, carbohydrates, glycans, vitamins, and nucleotides) with twenty-five putatively annotated metabolites were found to be increased in the WH group. In the WN group, the intake of nutrients (methionine; vitamins B2, B6, and B12; folate; and zinc) was negatively associated with six metabolites (cytosine, D-glucuronic acid, N-acetyl-D-glucosamine, pyroglutamic acid, uridine, and urocanic acid), whereas in the WH group, it was associated with five metabolites (D-glucuronic acid, L-glutamic acid, N-acetyl-D-glucosamine, N-acetylneuraminic acid, and uridine). Furthermore, in the WH group, positive associations between methionine, folate, and zinc intake and the signal intensity of succinic acid and 3-mercaptolactic acid were observed. These results highlight the need to educate the participants about the intake level of the nutrients involved in iAs metabolism and may contribute to further considerations with respect to the formulation of dietary recommendations for people exposed to iAs.
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Kunwittaya S, Ruksee N, Khamnong T, Jiawiwatkul A, Kleebpung N, Chumchua V, Plitponkarnpim A, Nopparat C, Permpoonputtana K. Inorganic arsenic contamination and the health of children living near an inactive mining site: northern Thailand. EXCLI J 2022; 21:1007-1014. [PMID: 36110556 PMCID: PMC9441675 DOI: 10.17179/excli2022-4922] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/08/2022] [Accepted: 07/20/2022] [Indexed: 11/10/2022]
Abstract
Arsenic toxicity is a global health problem affecting millions of people. Contamination is caused by arsenic from natural geological sources leaching into aquifers, contaminating drinking water, and may also be caused by mining and other industrial processes. Acute arsenic poisoning is associated with nausea, vomiting, abdominal pain, and severe diarrhea. Chronic arsenic toxicity results in multisystemic diseases leading to central nervous system (CNS) impairments such as cognitive or intellectual deficits in children. Over the past ten years, arsenic contamination has been reported in northern Thailand. The Ministry of Public Health; Thailand, Forensic Science Institute Thammasat University, and the Research Center to Promote Safety and Prevent Injuries in Children at the Ramathibodi Hospital compiled a report on the health impact of the population within a 10 kilometer radius around a mine tailing in the Phichit, Phitsanulok, and Phetchabun Provinces of Thailand. It showed that more than 30 % of children (aged 8-13 years) had higher than normal arsenic contamination levels based on the Agency for Toxic Substances and Disease Registry (ATSDR). After the publication of that report, the mine was temporarily closed in 2016. Based on this data, this research aimed to follow arsenic contamination after the mining operation had stopped operation for three years. The study showed that 4.5 % of school aged children had levels of inorganic arsenic in their urine, higher than the normal range (ATSDR), showing clearly that inorganic arsenic contamination is still above the normal range in children living near an inactive mining site. Therefore, monitoring heavy metal contamination in Thailand and the health effects on vulnerable children who live near mines during regular operation or after being temporarily suspended can prevent and mitigate possible health impacts.
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Affiliation(s)
- Sarun Kunwittaya
- National Institute for Child and Family Development, Mahidol University, Nakhon Pathom 73170, Thailand
| | - Nootchanart Ruksee
- National Institute for Child and Family Development, Mahidol University, Nakhon Pathom 73170, Thailand
| | - Thirata Khamnong
- National Institute for Child and Family Development, Mahidol University, Nakhon Pathom 73170, Thailand
| | - Athiwat Jiawiwatkul
- National Institute for Child and Family Development, Mahidol University, Nakhon Pathom 73170, Thailand
| | - Nonthasruang Kleebpung
- National Institute for Child and Family Development, Mahidol University, Nakhon Pathom 73170, Thailand
| | - Vasunun Chumchua
- National Institute for Child and Family Development, Mahidol University, Nakhon Pathom 73170, Thailand
| | - Adisak Plitponkarnpim
- National Institute for Child and Family Development, Mahidol University, Nakhon Pathom 73170, Thailand,Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok 10400, Thailand
| | - Chutikorn Nopparat
- Innovative Learning Center, Srinakharinwirot University, Sukhumvit 23, Bangkok, 10110, Thailand
| | - Kannika Permpoonputtana
- National Institute for Child and Family Development, Mahidol University, Nakhon Pathom 73170, Thailand,*To whom correspondence should be addressed: Kannika Permpoonputtana, National Institute for Child and Family Development, Mahidol University, Nakhon Pathom 73170, Thailand; Phone: (662) 441-0602, Fax: (662) 441-0167, E-mail:
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13
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Li YL, Li HL, Zuo TT, Wang Y, Qian ZM, Li WJ, Jin HY, Zan K, Ma SC. [Form and valence of arsenic in dry and fresh Cordyceps breeding products based on HPLC-ICP-MS and its risk assessment]. Zhongguo Zhong Yao Za Zhi 2022; 47:3548-3553. [PMID: 35850808 DOI: 10.19540/j.cnki.cjcmm.20220406.202] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
A comparative study was conducted for the first time on the form and valence of arsenic in the dry and fresh Cordyceps breeding products to clarify the specific morphology and valence of arsenic in Cordyceps breeding products and its safety. Arsenic betai-ne(AsB), arsenite(AsⅢ), dimethyl arsenic(DMA), arsenocholine(AsC), monomethyl arsenic(MMA), and arsenate(AsⅤ) in the dry and fresh samples were investigated using a bionic extraction method combined with HPLC-ICP-MS. The HPLC separation was performed on a DioncxIonPac~(TM) AS7 anion exchange column with a mobile phase of 100 mmol·L~(-1) ammonium carbonate-water for gradient elution at room temperature and the flow rate of 0.8 mL·min~(-1). HPLC was coupled with ICP-MS for the determination. The arsenic content was characterized in combination with chemometrics. The health safety risk of inorganic arsenic in the samples was assessed using the margin of exposure(MOE). The results of methodological validation showed that the six arsenic compounds showed good linearity(R~2>0.999) from 10 to 500 ng·mL~(-1), with precision RSDs of 1.8%-3.0%, recoveries(n=6) of 84.15%-98.28%, reproducibility RSDs of 6.4%-7.7%, and sample stability RSDs of 8.3%-14% within 10 h. Trace AsⅢ and AsⅤ were detected in 30 batches of dry and fresh Cordyceps breeding products, while arsenic compounds in other forms and valence were not detected. In the dry products, AsⅢ was 0.019-0.040 mg·kg~(-1) and AsV was 0.024-0.061 mg·kg~(-1), while in the fresh products, AsⅢ was 0.002 3-0.006 1 mg·kg~(-1) and AsⅤ was 0.008-0.016 mg·kg~(-1). The risk assessment results showed that the MOE of inorganic arsenic was much higher than 1 in both dry and fresh products, and the potential health safety risk of inorganic arsenic was low. The HPLC-ICP-MS method established in this study was efficient, rapid, accurate, and stable for the determination of six arsenic compounds in Cordyceps breeding products. The results of this study provide a basis for the safety and quality control of Cordyceps breeding products.
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Affiliation(s)
- Yao-Lei Li
- National Institutes for Food and Drug Control Beijing 100050, China
| | - Hai-Liang Li
- National Institutes for Food and Drug Control Beijing 100050, China
| | - Tian-Tian Zuo
- National Institutes for Food and Drug Control Beijing 100050, China
| | - Ying Wang
- National Institutes for Food and Drug Control Beijing 100050, China
| | - Zheng-Ming Qian
- Dongguan Dongyangguang Cordyceps R&D Co., Ltd. Dongguan 523850, China
| | - Wen-Jia Li
- Dongguan Dongyangguang Cordyceps R&D Co., Ltd. Dongguan 523850, China
| | - Hong-Yu Jin
- National Institutes for Food and Drug Control Beijing 100050, China
| | - Ke Zan
- National Institutes for Food and Drug Control Beijing 100050, China
| | - Shuang-Cheng Ma
- National Institutes for Food and Drug Control Beijing 100050, China
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14
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Suzuki C, Nomura M, Okutomi Y. [Determination of Inorganic Arsenic for Pet Food by LC-ICP-MS]. Shokuhin Eiseigaku Zasshi 2021; 62:139-147. [PMID: 34732639 DOI: 10.3358/shokueishi.62.139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
We have developed a quantitative determination method of the concentration of inorganic arsenic in pet foods using a liquid chromatograph-inductively coupled plasma-mass spectrometer (LC-ICP-MS). After adding 2 w/v% TMAH solution to a sample, inorganic arsenic was extracted by heating and the extract was collected by water. The pH of the solution was adjusted, and injected into a LC-ICP-MS to determine the concentration of inorganic arsenic. LC separation was carried out on an ODS column with 10 mmol/L sodium 1-butanesulfonate, 4 mmol/L malonic acid, 4 mmol/L TMAH and 0.05% methanol solution as a mobile phase. A collaborative study was conducted by nine laboratories using dry and wet-type pet foods, formed jerky, dried jerky and biscuit. Dry-type pet food and dried jerky was added with 2 mg/kg of As (III). Wet-type pet food was added with 0.5 mg/kg of As (III). Formed jerky was added with 1 mg/kg of As (III). Biscuit was added with 0.2 mg/kg of As (III). The mean recoveries, repeatabilities and reproducibilities in the form of relative standard deviation (RSDr and RSDR), and HorRat, were 95.4% to 98.3%, less than 2.9%, less than 9.1%, and 0.22 to 0.51, respectively.
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Affiliation(s)
- Chika Suzuki
- Sendai Regional Center, Food and Agricultural Materials Inspection Center
| | - Masayo Nomura
- Fertilizer and Feed Inspection Department, Food and Agricultural Materials Inspection Center
| | - Yuki Okutomi
- Fukuoka Regional Center, Food and Agricultural Materials Inspection Center
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15
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Sijko M, Kozłowska L. Influence of Dietary Compounds on Arsenic Metabolism and Toxicity. Part II-Human Studies. Toxics 2021; 9:259. [PMID: 34678956 PMCID: PMC8541625 DOI: 10.3390/toxics9100259] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 08/24/2021] [Accepted: 09/25/2021] [Indexed: 01/25/2023]
Abstract
Exposure to various forms of arsenic (As), the source of which may be environmental as well as occupational exposure, is associated with many adverse health effects. Therefore, methods to reduce the adverse effects of As on the human body are being sought. Research in this area focuses, among other topics, on the dietary compounds that are involved in the metabolism of this element. Therefore, the aim of this review was to analyze the influence of methionine, betaine, choline, folic acid, vitamin B2, B6, B12 and zinc on the efficiency of inorganic As (iAs) metabolism and the reduction in the severity of the whole spectrum of disorders related to As exposure. In this review, which included 62 original papers (human studies) we present the current knowledge in the area. In human studies, these compounds (methionine, choline, folic acid, vitamin B2, B6, B12 and zinc) may increase iAs metabolism and reduce toxicity, whereas their deficiency may impair iAs metabolism and increase As toxicity. Taking into account the results of studies conducted in populations exposed to As, it is reasonable to carry out prophylactic activities. In particular nutritional education seems to be important and should be focused on informing people that an adequate intake of those dietary compounds potentially has a modulating effect on iAs metabolism, thus, reducing its adverse effects on the body.
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Affiliation(s)
- Monika Sijko
- Department of Dietetics, Institute of Human Nutrition Sciences, Warsaw University of Life Sciences (SGGW-WULS), 159c Nowoursynowska Street, 02-776 Warsaw, Poland
| | - Lucyna Kozłowska
- Department of Dietetics, Institute of Human Nutrition Sciences, Warsaw University of Life Sciences (SGGW-WULS), 159c Nowoursynowska Street, 02-776 Warsaw, Poland
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16
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Sijko M, Kozłowska L. Influence of Dietary Compounds on Arsenic Metabolism and Toxicity. Part I-Animal Model Studies. Toxics 2021; 9:toxics9100258. [PMID: 34678954 PMCID: PMC8536957 DOI: 10.3390/toxics9100258] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/24/2021] [Revised: 09/17/2021] [Accepted: 09/25/2021] [Indexed: 12/14/2022]
Abstract
Population and laboratory studies indicate that exposure to various forms of arsenic (As) is associated with many adverse health effects; therefore, methods are being sought out to reduce them. Numerous studies focus on the effects of nutrients on inorganic As (iAs) metabolism and toxicity, mainly in animal models. Therefore, the aim of this review was to analyze the influence of methionine, betaine, choline, folic acid, vitamin B2, B6, B12 and zinc on the efficiency of iAs metabolism and the reduction of the severity of the whole spectrum of disorders related to iAs exposure. In this review, which includes 58 (in vivo and in vitro studies) original papers, we present the current knowledge in the area. In vitro and in vivo animal studies showed that methionine, choline, folic acid, vitamin B2, B12 and zinc reduced the adverse effects of exposure to iAs in the gastrointestinal, urinary, lymphatic, circulatory, nervous, and reproductive systems. On the other hand, it was observed that these compounds (methionine, choline, folic acid, vitamin B2, B12 and zinc) may increase iAs metabolism and reduce toxicity, whereas their deficiency or excess may impair iAs metabolism and increase iAs toxicity. Promising results of in vivo and in vitro on animal model studies show the possibility of using these nutrients in populations particularly exposed to As.
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Affiliation(s)
- Monika Sijko
- Correspondence: (M.S.); (L.K.); Tel.: +48-22-59-370-23 (M.S.); +48-22-59-370-17 (L.K.)
| | - Lucyna Kozłowska
- Correspondence: (M.S.); (L.K.); Tel.: +48-22-59-370-23 (M.S.); +48-22-59-370-17 (L.K.)
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17
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Fang H, Zhang Q, Zhang S, Zhang T, Pan F, Cui Y, Thomsen ST, Jakobsen LS, Liu A, Pires SM. Risk-Benefit Assessment of Consumption of Rice for Adult Men in China. Front Nutr 2021; 8:694370. [PMID: 34368209 PMCID: PMC8342936 DOI: 10.3389/fnut.2021.694370] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Accepted: 06/18/2021] [Indexed: 01/27/2023] Open
Abstract
Objective: To evaluate the health impact of current and alternative patterns of rice consumption in Chinese adult men (40-79 years of age). Methods: We applied a risk-benefit assessment (RBA) model that took into account the health effects of selenium (Se), cadmium (Cd), and inorganic arsenic (i-As). The health effects included the prevention of prostate cancer associated with exposure to Se, and an increased risk of lung, bladder, and skin cancer for i-As and chronic kidney disease (CKD) for Cd. We defined the baseline scenario (BS) as the current individual mean daily consumption of rice in the population of interest and two alternative scenarios (AS): AS1 = 50 g/day and AS2 = 200 g/day. We estimated the health impact for different age groups in terms of change in Disability-Adjusted Life Years (ΔDALY). Results: The BS of rice consumption was 71.5-105.4 g/day in different age groups of adult men in China. We estimated that for AS1, the mean ΔDALY was -2.76 to 46.2/100,000 adult men of 40-79 years old. For AS2, the mean ΔDALY was 41.3 to 130.8/100,000 individuals in this population group. Conclusion: Our results showed that, based on associated exposure to selenium, cadmium, and i-As in rice, the current consumption of rice does not pose a risk to adult men in China. Also, a lower (50 g/day) or higher (200 g/day) rice consumption will not bring larger beneficial effects.
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Affiliation(s)
- Haiqin Fang
- China Center for Food Safety and Risk Assessment, Beijing, China
| | - Quantao Zhang
- Yantai Huaxin Biomedical Science and Technology Co., Ltd, Yantai, China
| | - Shengjie Zhang
- School of Public Administration and Policy, Renmin University of China, Beijing, China
| | - Tongwei Zhang
- China Center for Food Safety and Risk Assessment, Beijing, China
| | - Feng Pan
- China Center for Food Safety and Risk Assessment, Beijing, China
| | - Yufeng Cui
- Liaoning Provincial Center for Disease Control and Prevention, Shenyang, China
| | - Sofie Theresa Thomsen
- Division of Diet, Disease Prevention and Toxicology, National Food Institute Technical University of Denmark, Lyngby, Denmark
| | - Lea S. Jakobsen
- Division of Diet, Disease Prevention and Toxicology, National Food Institute Technical University of Denmark, Lyngby, Denmark
| | - Aidong Liu
- China Center for Food Safety and Risk Assessment, Beijing, China
| | - Sara M. Pires
- Division of Diet, Disease Prevention and Toxicology, National Food Institute Technical University of Denmark, Lyngby, Denmark
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Martínez-Castillo M, Cruz-Robledo G, Hernández-Zavala A, Córdova EJ. Curcumin sensitizes Epstein-Barr-immortalized lymphoblastoid cell lines to inorganic arsenic toxicity. Exp Ther Med 2021; 22:872. [PMID: 34194550 DOI: 10.3892/etm.2021.10304] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2020] [Accepted: 02/23/2021] [Indexed: 11/05/2022] Open
Abstract
Chronic exposure to inorganic arsenic (iAs) through contaminated drinking water is an important health problem in certain countries. The use of phytochemicals such as curcumin has recently emerged as an alternative strategy for preventing cellular damage caused by iAs. The Epstein-Barr virus (EBV) affects ~90% of the population and experimental evidence suggested that curcumin mediates cytotoxicity against EBV-infected cells. Due to the potential for an interaction of these factors, the aim of the present study was to evaluate the effect of this phytochemical on iAs-related toxicity in EBV-infected cells. Two independent EBV-immortalized human lymphoblastoid cell lines (LCLs) were used as the model. The cell lines were first incubated with increasing concentrations of curcumin or iAs for 24 and 15 h, respectively, to determine the individual effects of each exposure on cell death. In the next experiment, cell cultures were pre-incubated with 5 µM curcumin for 9 h prior to treatment with 10 µM iAs for 15 h, followed by evaluation of cell death and the cell cycle profile via flow cytometry. The results indicated that individual treatment with either curcumin or iAs induced cell death in a concentration-dependent manner. Furthermore, curcumin pre-treatment enhanced iAs-induced cell death and promoted cell cycle arrest in G1 phase. Taken together, these results suggested that curcumin sensitizes EBV-positive LCLs to the cytotoxic effects of iAs.
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Majumder S, Biswas PK, Banik P. Impact of Water Regimes and Amendments on Inorganic Arsenic Exposure to Rice. Int J Environ Res Public Health 2021; 18:4643. [PMID: 33925610 PMCID: PMC8123884 DOI: 10.3390/ijerph18094643] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Revised: 04/19/2021] [Accepted: 04/23/2021] [Indexed: 12/04/2022]
Abstract
Rice-based diet faces an important public health concern due to arsenic (As) accumulation in rice grain, which is toxic to humans. Rice crops are prone to assimilate As due to continuously flooded cultivation. In this study, the objective was to determine how water regimes (flooded and aerobic) in rice cultivation impact total As and inorganic As speciation in rice on the basis of a field-scale trial in the post-monsoon season. Iron and silicon with NPK/organic manure were amended in each regime. We hypothesised that aerobic practice receiving amendments would reduce As uptake in rice grain with a subsequent decrease in accumulation of inorganic As species relative to flooded conditions (control). Continuously flooded conditions enhanced soil As availability by 32% compared to aerobic conditions. Under aerobic conditions, total As concentrations in rice decreased by 62% compared to flooded conditions. Speciation analyses revealed that aerobic conditions significantly reduced (p < 0.05) arsenite (68%) and arsenate (61%) accumulation in rice grains. Iron and silicon exhibited significant impact on reducing arsenate and arsenite uptake in rice, respectively. The study indicates that aerobic rice cultivation with minimum use of irrigation water can lead to lower risk of inorganic As exposure to rice relative to flooded practice.
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Affiliation(s)
- Supriya Majumder
- Department of Soil Science and Agricultural Chemistry, Institute of Agriculture, Visva Bharati 731236, Sriniketan, India; (S.M.); (P.K.B.)
| | - Pabitra Kumar Biswas
- Department of Soil Science and Agricultural Chemistry, Institute of Agriculture, Visva Bharati 731236, Sriniketan, India; (S.M.); (P.K.B.)
| | - Pabitra Banik
- Agricultural and Ecological Research Unit, Indian Statistical Institute, Kolkata 700108, India
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Cheyns K, Demaegdt H, Waegeneers N, Ruttens A. Intake of food supplements based on algae or cyanobacteria may pose a health risk due to elevated concentrations of arsenic species. Food Addit Contam Part A Chem Anal Control Expo Risk Assess 2021; 38:609-621. [PMID: 33596153 DOI: 10.1080/19440049.2021.1877834] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2020] [Accepted: 01/11/2021] [Indexed: 10/22/2022]
Abstract
Despite the health benefits of food supplements (FS) based on algae or cyanobacteria, the elevated arsenic (As) concentrations in these FS may raise a health concern. In the present study 33 FS containing algae or cyanobacteria were collected and As (species) were analysed to estimate consumer exposure. Based on hazard and exposure data, potential risks were evaluated using inorganic arsenic (Asi) and the potentially toxic As fraction (Astot minus arsenobetaine (AB)). Astot concentrations were in the range 0.053-57 mg/kg with highest concentrations in FS containing brown algae. Asi concentrations were in the range <0.02-4.7 mg kg-1. A large part of As in FS containing algae or cyanobacteria was identified as potentially toxic AsSugars species. Negligible amounts of AB were detected. According to a tentative risk evaluation, the intake of Asi related to all FS collected was of no health concern for the general population. In 8 out of 33 of the analysed FS, however, the Asi concentration was of concern for population groups with increased cancer risks. If all As species except the non-toxic AB were taken into consideration, only 26 out of 33 of the FS showed 'no concern' for the general population, while for the other 7 FS a potential health risk was identified. This study indicates the need to obtain more data on toxicity of AsSugars and to develop limits for As (species) in FS.
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Affiliation(s)
- Karlien Cheyns
- Sciensano, Trace Elements and Nanomaterials, Tervuren, Belgium
| | - Heidi Demaegdt
- Sciensano, Trace Elements and Nanomaterials, Tervuren, Belgium
| | | | - Ann Ruttens
- Sciensano, Trace Elements and Nanomaterials, Tervuren, Belgium
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Jiang Z, Li N, Li PY, Liu B, Lai HJ, Jin T. One-Step Preparation of Chitosan-Based Magnetic Adsorbent and Its Application to the Adsorption of Inorganic Arsenic in Water. Molecules 2021; 26:1785. [PMID: 33810077 DOI: 10.3390/molecules26061785] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2021] [Revised: 03/07/2021] [Accepted: 03/16/2021] [Indexed: 11/16/2022] Open
Abstract
Chitosan is a kind of biodegradable natural polysaccharide, and it is a very promising adsorber material for removing metal ions from aqueous solutions. In this study, chitosan-based magnetic adsorbent CMC@Fe3O4 was synthesized by a one-step method using carboxymethyl chitosan (CMC) and ferric salts under relatively mild conditions. The Fe3O4 microspheres were formed and the core-shell structure of CMC@Fe3O4 was synthesized in the meantime, which was well characterized via SEM/TEM, XRD, VSM, FT-IR, thermo gravimetric analysis (TGA), XPS, size distribution, and zeta potential. The effects of initial arsenic concentration, pH, temperature, contact time, and ionic strength on adsorption quantity of inorganic arsenic was studied through batch adsorption experiments. The magnetic adsorbent CMC@Fe3O4 displayed satisfactory adsorption performance for arsenic in water samples, up to 20.1 mg/g. The optimal conditions of the adsorption process were pH 3.0, 30-50 °C, and a reaction time of 15 min. The adsorption process can be well described by pseudo-second-order kinetic model, suggesting that chemisorption was main rate-controlling step. The Langmuir adsorption model provided much higher correlation coefficient than that of Freundlich adsorption model, indicating that the adsorption behavior is monolayer adsorption on the surface of the magnetic adsorbents. The above results have demonstrated that chitosan-based magnetic adsorbent CMC@Fe3O4 is suitable for the removal of inorganic arsenic in water.
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Abstract
Following an official request to EFSA from the European Commission, EFSA assessed the chronic dietary exposure to inorganic arsenic (iAs) in the European population. A total of 13,608 analytical results on iAs were considered in the current assessment (7,623 corresponding to drinking water and 5,985 to different types of food). Samples were collected across Europe between 2013 and 2018. The highest mean dietary exposure estimates at the lower bound (LB) were in toddlers (0.30 μg/kg body weight (bw) per day), and in both infants and toddlers (0.61 μg/kg bw per day) at the upper bound (UB). At the 95th percentile, the highest exposure estimates (LB-UB) were 0.58 and 1.20 μg/kg bw per day in toddlers and infants, respectively. In general, UB estimates were two to three times higher than LB estimates. The mean dietary exposure estimates (LB) were overall below the range of benchmark dose lower confidence limit (BMDL 01) values of 0.3-8 μg/kg bw per day established by the EFSA Panel on Contaminants in the Food Chain in 2009. However, for the 95th percentile dietary exposure (LB), the maximum estimates for infants, toddlers and other children were within this range of BMDL 01 values. Across the different age classes, the main contributors to the dietary exposure to iAs (LB) were 'Rice', 'Rice-based products', 'Grains and grain-based products (no rice)' and 'Drinking water'. Different ad hoc exposure scenarios (e.g. consumption of rice-based formulae) showed dietary exposure estimates in average and for high consumers close to or within the range of BMDL 01 values. The main uncertainties associated with the dietary exposure estimations refer to the impact of using the substitution method to treat the left-censored data (LB-UB differences), to the lack of information (consumption and occurrence) on some iAs-containing ingredients in specific food groups, and to the effect of food preparation on the iAs levels. Recommendations were addressed to improve future dietary exposure assessments to iAs.
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Parada H Jr, Wu T, Fry RC, Farnan L, Smith GJ, Mohler JL, Bensen JT. Understanding the Relationship between Environmental Arsenic and Prostate Cancer Aggressiveness among African-American and European-American Men in North Carolina. Int J Environ Res Public Health 2020; 17:E8364. [PMID: 33198142 DOI: 10.3390/ijerph17228364] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 10/02/2020] [Revised: 10/30/2020] [Accepted: 11/10/2020] [Indexed: 01/08/2023]
Abstract
High-level exposure to arsenic, a known carcinogen and endocrine disruptor, is associated with prostate cancer (PCa) mortality. Whether low-level exposure is associated with PCa aggressiveness remains unknown. We examined the association between urinary arsenic and PCa aggressiveness among men in North Carolina. This cross-sectional study included 463 African-American and 491 European-American men with newly diagnosed, histologically confirmed prostate adenocarcinoma. PCa aggressiveness was defined as low aggressive (Gleason score < 7, stage = cT1–cT2, and PSA < 10 ng/mL) versus intermediate/high aggressive (all other cases). Total arsenic and arsenical species (inorganic arsenic (iAsIII + iAsV), arsenobetaine, monomethyl arsenic, and dimethyl arsenic)) and specific gravity were measured in spot urine samples obtained an average of 23.7 weeks after diagnosis. Multivariable logistic regression was used to estimate the covariate-adjusted odds ratios (ORs) and 95% confidence intervals (CIs) for PCa aggressiveness in association with arsenic tertiles/quantiles overall and by race. The highest (vs. lowest) tertile of total arsenic was associated with PCa aggressiveness ORs of 1.77 (95% CI = 1.05–2.98) among European-American men, and 0.94 (95% CI = 0.57–1.56) among African-American men (PInteraction = 0.04). In contrast, total arsenic and arsenical species were not associated with PCa aggressiveness in unstratified models. Low-level arsenic exposure may be associated with PCa aggressiveness among European-Americans, but not among African-Americans.
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Mise N, Ohtsu M, Ikegami A, Hosoi Y, Nakagi Y, Yoshida T, Kayama F. Concentration of folic acid (FA) in serum of Japanese pregnant women. Rev Environ Health 2020; 35:277-280. [PMID: 32651989 DOI: 10.1515/reveh-2020-0014] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/10/2020] [Accepted: 06/09/2020] [Indexed: 06/11/2023]
Abstract
Objectives Exposure to inorganic arsenic (iAs) is a world-wide health concern. We reported that Japanese children and pregnant women are exposed to moderate levels of iAs through food. Reducing iAs contamination from foods of high iAs is an important issue unique in Japan. Integrated iAs is methylated to less toxic organic forms, and S-adenosyl-L-methyonine (SAM), a common methyl-donor of DNA and histones, is utilized in this process. Chronic consumption of SAM by iAs metabolism due to exposure to iAs might alter the epigenetic modification of genome. The SAM biosynthesis pathway is dependent on folate cycle, and it is possible that ingestion of sufficient folic acid (FA) is protective to iAs induced toxicity. Methods In the course of our cross-sectional body burden analyses of Pb and iAs in Japanese children and pregnant women, termed "PbAs study", FA concentration in serum of 104 pregnant women was measured. Results Mean (±SEM) of serum FA concentration was 15.8 ± 1.3 (ng/mL). There are significant number of people showing very high FA (>30 ng/ mL), and large fraction of them were taking supplements daily. Conclusions These results suggested that level of FA ingestion of Japanese pregnant women is high for supporting normal fetal development.
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Affiliation(s)
- Nathan Mise
- Department of Environmental and Preventive Medicine, Jichi Medical University, Yakushiji, Shimotsuke, Tochigi, Japan
| | - Mayumi Ohtsu
- Department of Environmental and Preventive Medicine, Jichi Medical University, Yakushiji, Shimotsuke, Tochigi, Japan
| | - Akihiko Ikegami
- Department of Environmental and Preventive Medicine, Jichi Medical University, Yakushiji, Shimotsuke, Tochigi, Japan
| | - Yoko Hosoi
- Department of Environmental and Preventive Medicine, Jichi Medical University, Yakushiji, Shimotsuke, Tochigi, Japan
| | - Yoshihiko Nakagi
- Department of Health Science, Asahikawa Medical University, Midorigaoka-higashi, Asahikawa, Hokkaido, Japan
| | - Takahiko Yoshida
- Department of Health Science, Asahikawa Medical University, Midorigaoka-higashi, Asahikawa, Hokkaido, Japan
| | - Fujio Kayama
- Department of Environmental and Preventive Medicine, Jichi Medical University, Yakushiji, Shimotsuke, Tochigi, Japan
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Yoshinaga J, Serizawa Y, Suzuki S, Al Amin MH, Yamada N, Narukawa T. A Simplified Questionnaire for the Assessment of Inorganic Arsenic Intake in a Japanese Population. Int J Environ Res Public Health 2020; 17:ijerph17176252. [PMID: 32867372 PMCID: PMC7504181 DOI: 10.3390/ijerph17176252] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/23/2020] [Revised: 08/21/2020] [Accepted: 08/24/2020] [Indexed: 12/04/2022]
Abstract
A simplified questionnaire was developed to assess inorganic arsenic (iAs) intake level in a Japanese population. The two page questionnaire included photographs of single serving sizes of rice and cooked hijiki (Hizikia fusiforme: brown algae), and asked subjects about the number of servings of rice and cooked hijiki, two predominant dietary sources of iAs in Japan, they consume in a day. Daily intake of iAs was estimated for 72 Japanese subjects using the questionnaire together with data of iAs content in rice and hijiki seaweed, and the estimated intakes were compared with actual iAs intakes of the subjects as measured for a duplicate diet using liquid chromatography–inductively coupled plasma mass spectrometry. A highly significant correlation was found between the estimated and measured intakes (r = 0.65, p < 0.001); however, the slope of regression indicated a systematic error in the intake estimation. Possible sources of error are discussed herein. It was concluded that this approach is promising if minor improvements are made to the questionnaire.
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Affiliation(s)
- Jun Yoshinaga
- Faculty of Life Sciences, Toyo University, 1-1-1 Izumino, Itakura, Oura, Gunma 374-0193, Japan; (Y.S.); (S.S.); (M.H.A.A.)
- Correspondence:
| | - Yuki Serizawa
- Faculty of Life Sciences, Toyo University, 1-1-1 Izumino, Itakura, Oura, Gunma 374-0193, Japan; (Y.S.); (S.S.); (M.H.A.A.)
| | - Shota Suzuki
- Faculty of Life Sciences, Toyo University, 1-1-1 Izumino, Itakura, Oura, Gunma 374-0193, Japan; (Y.S.); (S.S.); (M.H.A.A.)
| | - Md Hasan Al Amin
- Faculty of Life Sciences, Toyo University, 1-1-1 Izumino, Itakura, Oura, Gunma 374-0193, Japan; (Y.S.); (S.S.); (M.H.A.A.)
| | - Naoko Yamada
- Faculty of Sport Science, Nippon Sport Science University, 7-1-1 Fukasawa, Setagaya, Tokyo 158-8508, Japan;
| | - Tomohiro Narukawa
- National Metrology Institute of Japan, National Institute of Advanced Industrial Sciences and Technology, 1-1-1 Umezono, Tsukuba, Ibaraki 305-8563, Japan;
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Beaulieu JC, Reed SS, Obando-Ulloa JM, Boue SM, Cole MR. Green Processing, Germinating and Wet Milling Brown Rice ( Oryza sativa) for Beverages: Physicochemical Effects. Foods 2020; 9:foods9081016. [PMID: 32751212 PMCID: PMC7466225 DOI: 10.3390/foods9081016] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2020] [Revised: 07/16/2020] [Accepted: 07/24/2020] [Indexed: 11/16/2022] Open
Abstract
Plant-based beverage consumption is increasing markedly. Value-added dehulled rice (Oryza sativa) germination was investigated to improve beverage qualities. Germinating brown rice has been shown to increase health-promoting compounds. Utilizing green processing, wholesome constituents, including bran, vitamins, minerals, oils, fiber and proteins should should convey forward into germinated brown rice beverages. Rapid visco-analyzer (RVA) data and trends established that brown rice, preheated brown rice and germinated brown rice had higher pasting temperatures than white rice. As pasting temperature in similar samples may be related to gelatinization, RVA helped guide the free-flowing processing protocol using temperatures slightly above those previously reported for Rondo gelatinization. Particle size analysis and viscometric evaluations indicate that the developed sprouted brown rice beverage is on track to have properties close to commercial samples, even though the sprouted brown rice beverage developed has no additives, fortifications, added oils or salts. Phenolics and γ-aminobutyric acid increased slightly in germinated brown rice, however, increases were not maintained throughout most stages of processing. Significantly lower inorganic arsenic levels (113 ng/g) were found in germinated (sprouted) brown rice, compared to Rondo white and brown rice, which is far below the USA threshold level of 200 ng/g.
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Affiliation(s)
- John C. Beaulieu
- United States Department of Agriculture, Agricultural Research Service, Southern Regional Research Center, 1100 Robert E. Lee Blvd., New Orleans, LA 70124, USA; (S.S.R.); (S.M.B.)
- Correspondence:
| | - Shawndrika S. Reed
- United States Department of Agriculture, Agricultural Research Service, Southern Regional Research Center, 1100 Robert E. Lee Blvd., New Orleans, LA 70124, USA; (S.S.R.); (S.M.B.)
| | - Javier M. Obando-Ulloa
- Doctorate Program in Natural Science for Development (DOCINADE) and Agronomy Engineering School, Costa Rica Institute of Technology (ITCR), San Carlos Technology Local Campus, PO Box 223-21001, Ciudad Quesada, San Carlos, Alajuela 30101, Costa Rica;
| | - Stephen M. Boue
- United States Department of Agriculture, Agricultural Research Service, Southern Regional Research Center, 1100 Robert E. Lee Blvd., New Orleans, LA 70124, USA; (S.S.R.); (S.M.B.)
| | - Marsha R. Cole
- Department of Chemistry, College of Engineering and Science, Louisiana Tech University, Carson-Taylor Hall, 343, PO Box 10348, Ruston, LA 71272, USA;
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Garnier R, Goullé JP, Nouyrigat E, Benoit P, Granon C, Manel J, Manouchehri N, Mathieu-Huart A, Nisse P, Normand JC, Ronga-Pezeret S, Roulet A, Simon F, Gabach P, Tournoud C. [Biomononitoring of environmental exposure to inorganic arsenic]. Ann Biol Clin (Paris) 2020; 78:279-98. [PMID: 32540815 DOI: 10.1684/abc.2020.1550] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
BACKGROUND AND OBJECTIVES The French national authority for health (Haute autorité de santé: HAS) and the French clinical toxicology society (Société de toxicologie clinique: STC) received a formal request from the French ministry for heath to elaborate recommendations for the screening of environmental overexposure to inorganic arsenic (iAs), for the medical management of overexposed patients and for the medical surveillance of exposed population. To allow these recommendations, preliminary literature retrieval and analysis were performed for identifying validated indicators of both exposure and early effects of iAs and their levels in the general population living in France. METHODS Evaluations of inorganic arsenic toxicity conducted by national or international health agencies during the last 3 decades were all examined and analyzed. These evaluations were completed by literature retrieval through Medline and Scopus from January 2016 to December 2019. RESULTS AND CONCLUSIONS The best biomonitoring indicator for iAs exposure is the sum of urine iAs, monmomethylarsonic acid (MMA) and dimethylarsinic acid (DMA) concentrations (SAs). The upper limit of confidence interval of the 95th percentile of the distribution of this parameter in the general adult population living in France is 10 μg/g of creatinine, and is recommended as the limit value for the definition of overexposure. In less than 12 year-old children specific limit values are required, but not yet available. In their absence, SAs should exceed both 10 μg/g creatinine and 11 μg/L to be considered as indicating a probable overexposure to iAs. There are no useful biological indicators of iAs early effects. Non carcinogenic skin effects of inorganic arsenic (hyperpigmentation and keratosis) should be considered as the earliest deleterious effects of repeated environmental iAs exposure.
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Desai G, Vahter M, Queirolo EI, Peregalli F, Mañay N, Millen AE, Yu J, Browne RW, Kordas K. Vitamin B-6 Intake Is Modestly Associated with Arsenic Methylation in Uruguayan Children with Low-Level Arsenic Exposure. J Nutr 2020; 150:1223-1229. [PMID: 31913474 PMCID: PMC7198313 DOI: 10.1093/jn/nxz331] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2019] [Revised: 11/12/2019] [Accepted: 12/10/2019] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Detoxification of inorganic arsenic (iAs) occurs when it methylates to form monomethylarsonic acid (MMA) and dimethylarsinic acid (DMA). Lower proportions of urinary iAs and MMA, and higher proportions of DMA indicate efficient methylation. The role of B-vitamins in iAs methylation in children with low-level arsenic exposure is understudied. OBJECTIVES Our study objective was to assess the association between B-vitamin intake and iAs methylation in children with low-level arsenic exposure (<50 µg/L in water; urinary arsenic 5-50 µg/L). METHODS We conducted a cross-sectional study in 290 ∼7-y-old children in Montevideo. Intake of thiamin, riboflavin, niacin, vitamin B-6, and vitamin B-12 was calculated by averaging 2 nonconsecutive 24-h recalls. Total urinary arsenic concentration was measured as the sum of urinary iAs, MMA, and DMA, and adjusted for urinary specific gravity; iAs methylation was measured as urinary percentage As, percentage MMA, and percentage DMA. Arsenic concentrations from household water sources were assessed. Linear regressions tested the relationships between individual energy-adjusted B-vitamins and iAs methylation. RESULTS Median (range) arsenic concentrations in urine and water were 9.9 (2.2-48.7) and 0.45 (0.1-18.9) µg/L, respectively. The median (range) of urinary percentage iAs, percentage MMA, and percentage DMA was 10.6% (0.0-33.8), 9.7% (2.6-24.8), and 79.1% (58.5-95.4), respectively. The median (range) intake levels of thiamin, riboflavin, niacin, and vitamin B-6 were 0.81 (0.19-2.56), 1.0 (0.30-2.24), 8.6 (3.5-23.3), and 0.67 (0.25-1.73) mg/1000 kcal, respectively, whereas those of folate and vitamin B-12 were 216 (75-466) and 1.7 (0.34-8.3) µg/1000 kcal, respectively. Vitamin B-6 intake was inversely associated with urinary percentage MMA (β = -1.60; 95% CI: -3.07, -0.15). No other statistically significant associations were observed. CONCLUSIONS Although vitamin B-6 intake was inversely associated with urinary percentage MMA, our findings suggest limited support for a relation between B-vitamin intake and iAs methylation in children exposed to low-level arsenic.
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Affiliation(s)
- Gauri Desai
- Department of Epidemiology and Environmental Health, School of Public Health and Health Professions, The State University of New York (SUNY) at Buffalo, NY, USA,Address correspondence to GD (e-mail: )
| | | | - Elena I Queirolo
- Center for Research, Catholic University of Uruguay, Montevideo, Uruguay
| | - Fabiana Peregalli
- Center for Research, Catholic University of Uruguay, Montevideo, Uruguay
| | - Nelly Mañay
- Faculty of Chemistry, University of the Republic of Uruguay, Montevideo, Uruguay
| | - Amy E Millen
- Department of Epidemiology and Environmental Health, School of Public Health and Health Professions, The State University of New York (SUNY) at Buffalo, NY, USA
| | - Jihnhee Yu
- Department of Biostatistics, School of Public Health and Health Professions, The State University of New York (SUNY) at Buffalo, NY, USA
| | - Richard W Browne
- Department of Biotechnical and Clinical Laboratory Sciences, Jacobs School of Medicine and Biomedical Sciences, The State University of New York (SUNY) at Buffalo, NY, USA
| | - Katarzyna Kordas
- Department of Epidemiology and Environmental Health, School of Public Health and Health Professions, The State University of New York (SUNY) at Buffalo, NY, USA
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Zhu XD, Luo JY, Kong DD, Wu JJ, Sheng P, Yang MH. [Analysis of arsenic speciation in Sepiae Endoconcha and research on its limit standard]. Zhongguo Zhong Yao Za Zhi 2020; 44:5065-5071. [PMID: 32237338 DOI: 10.19540/j.cnki.cjcmm.20190903.201] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Sepiae Endoconcha is a common marine animal medicine,which generally contains high concentration of arsenic( As).The Chinese Pharmacopoeia( 2010 edition,part I) stipulated that the total As content of Sepiae Endoconcha should not exceed 2 mg·kg~(-1),while this limit was revised to 10 mg·kg~(-1) in the 2015 edition. So far,there is no research on the speciation of As in Sepiae Endoconcha,which made it hard to accurately evaluate its security risk. In this study,32 batches of Sepiae Endoconcha from different sources were collected. The safety risk assessment was carried out by determining the total As content and As speciation,inorganic As[As( Ⅲ),As( Ⅴ) ]and organic As( MMA,DMA,As C,As B) by HPLC-ICP-MS,and then the limit standard was discussed. The results showed that As B was the main form of As in Sepiae Endoconcha,followed by DMA and As( Ⅴ) . Of the 32 batches of Sepiae Endoconcha,9 batches( accounting for 28%) were detected possessing i As. The maximum concentration of As( Ⅲ) was 103. 3 μg·kg~(-1),and the maximum concentration of As( Ⅴ) was 222. 4 μg·kg~(-1). According to the limit of i As in food,18. 75% of the samples exceeded the standard. The results indicate that there is no simple positive correlation between total As and As morphology in Sepiae Endoconcha. Besides,there is a risk in the total As limit,especially after the relaxation of the total As limit. The problem of high i As content caused by pollution and other factors is difficult to regulate. Since the toxicity of inorganic As is much higher than that of organic As,it is of great practical significance to establish inorganic As form limits in Sepiae Endoconcha.
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Affiliation(s)
- Xiao-Dong Zhu
- College of Traditional Chinese Medicine,Xinjiang Medicine University Urumqi 830011,China Institute of Medicinal Plant Development,Chinese Academy of Medical Sciences and Peking Union Medical College Beijing 100193,China Traditional Chinese Medicine Hospital of Urumqi Urumqi 830000,China
| | - Jiao-Yang Luo
- Institute of Medicinal Plant Development,Chinese Academy of Medical Sciences and Peking Union Medical College Beijing 100193,China
| | - Dan-Dan Kong
- Institute of Medicinal Plant Development,Chinese Academy of Medical Sciences and Peking Union Medical College Beijing 100193,China
| | - Jian-Jie Wu
- College of Traditional Chinese Medicine,Xinjiang Medicine University Urumqi 830011,China Institute of Medicinal Plant Development,Chinese Academy of Medical Sciences and Peking Union Medical College Beijing 100193,China
| | - Ping Sheng
- College of Traditional Chinese Medicine,Xinjiang Medicine University Urumqi 830011,China
| | - Mei-Hua Yang
- Institute of Medicinal Plant Development,Chinese Academy of Medical Sciences and Peking Union Medical College Beijing 100193,China
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Narukawa T, Raber G, Itoh N, Inagaki K. A New Candidate Reference Material for Inorganic Arsenic and Arsenosugars in Hijiki Seaweed: First Results from an Inter-laboratory Study. ANAL SCI 2020; 36:233-237. [PMID: 32037373 DOI: 10.2116/analsci.19p306] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
An inter-laboratory study was carried out to characterize a candidate hijiki seaweed for its concentrations of total arsenic and water-soluble arsenic compounds, particularly arsenosugar compounds. The candidate material, a dried hijiki seaweed powder, was analyzed by individual techniques in two laboratories. The water-soluble arsenic compounds were separated by anion exchange, and reversed-phase columns, and As(V), DMA and four kinds of arsenosugars, namely glycerol (-OH), phosphate (-PO4), sulfonate (-SO3), and sulfate (-SO4) types were detected by HPLC-ICP-MS. The methods applied were validated by analyzing a second sample, the NMIJ CRM 7405-a hijiki seaweed, which is certified for both total arsenic and As(V). Techniques for the inter-laboratory study, extraction efficiencies under different extraction conditions, some chromatographic techniques and sequential extraction were investigated. The results from the two laboratories for the candidate hijiki material showed good agreement within the measurement uncertainties for total and water-soluble arsenic compounds.
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Affiliation(s)
- Tomohiro Narukawa
- National Metrology Institute of Japan (NMIJ), National Institute of Advanced Industrial Science and Technology (AIST)
| | - Georg Raber
- Institute of Chemistry-Analytical Chemistry, University of Graz
| | - Nobuyasu Itoh
- National Metrology Institute of Japan (NMIJ), National Institute of Advanced Industrial Science and Technology (AIST)
| | - Kazumi Inagaki
- National Metrology Institute of Japan (NMIJ), National Institute of Advanced Industrial Science and Technology (AIST)
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Gu Z, de Silva S, Reichman SM. Arsenic Concentrations and Dietary Exposure in Rice-Based Infant Food in Australia. Int J Environ Res Public Health 2020; 17:E415. [PMID: 31936289 PMCID: PMC7014030 DOI: 10.3390/ijerph17020415] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/24/2019] [Revised: 12/11/2019] [Accepted: 12/19/2019] [Indexed: 11/24/2022]
Abstract
Rice-based products are widely used to feed infants and young children. However, the association of rice-based products and high arsenic (As) concentrations have been investigated in a number of studies, but there is limited information from Australia. Therefore, the purpose of this study was to determine the As concentration and dietary exposure in infant rice milk, cereal, crackers and pasta as well as to investigate the relationship between As concentration and rice content, rice type and product origin. Total arsenic (tAs) concentrations were determined by nitric acid digestion and ICP-MS while inorganic arsenic (iAs) was determined by acid extraction, followed by ICP-MS with an interfaced hydride generation system. Nearly 75% of samples had inorganic As exceeding the EU maximum levels for infants and children (0.1 mg kg-1) and the mean iAs percentage of total reached as high as 84.8%. High tAs concentration was positively correlated with rice content and also related to brown (wholegrain). Estimates of dietary exposure showed that infants consuming large amounts of rice pasta or crackers will have an increased risk of health impact associated with excess intake of As through dietary exposure. Moreover, the current Australian guidelines for As in rice (1 mg kg-1) are above the WHO or EU guideline and therefore, will be less protective of high sensitivity consumers like infants and children.
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Affiliation(s)
- Zhuyun Gu
- School of Engineering, RMIT University, Melbourne 3001, Australia; (Z.G.); (S.d.S.)
- Centre for Environmental Sustainability and Remediation, RMIT University, Melbourne 3001, Australia
| | - Shamali de Silva
- School of Engineering, RMIT University, Melbourne 3001, Australia; (Z.G.); (S.d.S.)
- Centre for Environmental Sustainability and Remediation, RMIT University, Melbourne 3001, Australia
| | - Suzie M. Reichman
- School of Engineering, RMIT University, Melbourne 3001, Australia; (Z.G.); (S.d.S.)
- Centre for Environmental Sustainability and Remediation, RMIT University, Melbourne 3001, Australia
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Abstract
High arsenic residues make Cordyceps sinensis a concern in China. Arsenic toxicity is related to its species. Many studies have evaluated the toxicity of total arsenic, but few have studied its species. In this study, the species of arsenic in C. sinensis and its potential health risk were investigated. SEC-HPLC-ICP-MS was used to analysis of arsenic in C. sinensis and unknown arsenic (uAs) was discovered. Additionally, arsenic in C. sinensis was mainly found in alkali-soluble proteins. The trend of arsenic transformation indicated that unknown arsenic in C. sinensis may be converted into free inorganic arsenic, which enhanced toxicity. The result of risk assessment indicated that there were potential health risks of uAs. Hereon, we proposed recommendations for the use of C. sinensis and regulatory recommendations for arsenic standards. This study contributed to the toxicity reveal, safety evaluation, and risk assessment of arsenic in C. sinensis.
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Affiliation(s)
- Yaolei Li
- National Institutes for Food and Drug Control, Beijing, China
| | - Yue Liu
- School of Chinese Pharmacy, Beijing University of Chinese Medicine, Beijing, China
| | - Xiao Han
- Department of Pharmacy, Beihua University, Jilin, China
| | - Hongyu Jin
- National Institutes for Food and Drug Control, Beijing, China
| | - Shuangcheng Ma
- National Institutes for Food and Drug Control, Beijing, China
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García-Rico L, Valenzuela-Rodríguez MP, Meza-Montenegro MM, Lopez-Duarte AL. Arsenic in rice and rice products in Northwestern Mexico and health risk assessment. Food Addit Contam Part B Surveill 2019; 13:25-33. [PMID: 31690242 DOI: 10.1080/19393210.2019.1678672] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
The aim of this study was to evaluate the health risk of arsenic exposure by consumption of rice and its products marketed in northwestern Mexico. Sixty-six national and imported rice products were purchased in markets in northwestern Mexico, an endemic arsenic region. Total and inorganic arsenic in rice samples were analysed by inductively coupled plasma atomic emission spectroscopy and the risk assessment was evaluated according to the hazard quotient (HQ) and carcinogenic risk (CR). Total and inorganic arsenic in rice samples ranged from 0.06 to 0.29 mg/kg and from 0.03 to 0.13 mg/kg, respectively, and 40% of the analysed samples exceeded FAO/WHO arsenic recommended levels. The inorganic/total arsenic ratio ranged from 15% to 65%. The HQ and CR values for total and inorganic arsenic did not exceed safety levels. Therefore, rice supply in the northwestern of Mexico appears to be safe for human consumption.
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Affiliation(s)
- Leticia García-Rico
- Coordinación de Ciencia de Alimentos, Centro de Investigación en Alimentación y Desarrollo, Hermosillo, México
| | | | | | - Ana Lilia Lopez-Duarte
- Coordinación de Ciencia de Alimentos, Centro de Investigación en Alimentación y Desarrollo, Hermosillo, México
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Abstract
It is estimated that approximately 200 million people are exposed to arsenic levels above the World Health Organization provisional guideline value, and various agencies have indicated the need to reduce this exposure. In view of the difficulty of removing arsenic from water and food, one alternative is to reduce its bioavailability (the amount that reaches the systemic circulation after ingestion). In this study, dietary components [glutathione, tannic acid, and Fe(III)] were used to achieve this goal. As(III) or As(V) (1 mg/kg body weight) was administered daily to BALB/c mice, along with the dietary components, for 15 days. The results confirm the efficacy of Fe(III) and glutathione as reducers of arsenic bioavailability and tissue accumulation. Also, these treatments did not result in reductions of Ca, K, P, and Fe contents in the liver. These data suggest that use of these two compounds could be part of valid strategies for reducing inorganic arsenic exposure in chronically exposed populations.
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Affiliation(s)
- María Jesús Clemente
- Instituto de Agroquímica y Tecnología de Alimentos (IATA-CSIC) , Calle Agustín Escardino 7 , Paterna 46980 , Valencia , Spain
| | - Alessandra Cimbalo
- Instituto de Agroquímica y Tecnología de Alimentos (IATA-CSIC) , Calle Agustín Escardino 7 , Paterna 46980 , Valencia , Spain
| | - Gabriela Chiocchetti
- Instituto de Agroquímica y Tecnología de Alimentos (IATA-CSIC) , Calle Agustín Escardino 7 , Paterna 46980 , Valencia , Spain
| | - Vicenta Devesa
- Instituto de Agroquímica y Tecnología de Alimentos (IATA-CSIC) , Calle Agustín Escardino 7 , Paterna 46980 , Valencia , Spain
| | - Dinoraz Vélez
- Instituto de Agroquímica y Tecnología de Alimentos (IATA-CSIC) , Calle Agustín Escardino 7 , Paterna 46980 , Valencia , Spain
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Magura J, Moodley R, Jonnalagadda SB. Toxic metals (As and Pb) in Sargassum elegans Suhr (1840) and its bioactive compounds. Int J Environ Health Res 2019; 29:266-275. [PMID: 30372162 DOI: 10.1080/09603123.2018.1537439] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/08/2018] [Accepted: 10/14/2018] [Indexed: 06/08/2023]
Abstract
Sargassum elegans Suhr 1840 (Phaeophyta) is a brown marine macro alga, which is used both nutritionally and medicinally in the coastal areas of Southern Africa. Consequently, we conducted a phytochemical and analytical investigation on samples of this species collected from seven sites along the coast of KwaZulu-Natal, South Africa. Sargassum elegans was found to be rich in β-sitosterol, fucosterol and phaeophytin a as confirmed by spectroscopic techniques. Concentrations of essential and toxic elements varied significantly with location and were in the order of Ca > Mg> Fe > As > Cu > Zn > Mn > Ni > Pb > Co > Se > Cr > Cd. The accumulation of As by S. elegans was also evident as concentrations ranged from 42 to 105 mg kg-1, of which, 21 to 53 mg kg-1 was in inorganic form; consumption of this species may therefore increase dietary exposure to inorganic arsenic. Abbreviation: CRM: Certified reference material; NMR: Nuclear magnetic resonance; ICP - OES: Inductively coupled plasma - optical emission spectroscopy; PCA: Principal component analysis.
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Affiliation(s)
- Judie Magura
- a School of Chemistry and Physics , University of KwaZulu-Natal , Durban , South Africa
| | - Roshila Moodley
- a School of Chemistry and Physics , University of KwaZulu-Natal , Durban , South Africa
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Letsoalo MR, Godeto TW, Magadzu T, Ambushe AA. Selective speciation of inorganic arsenic in water using nanocomposite based solid-phase extraction followed by inductively coupled plasma-mass spectrometry detection. J Environ Sci Health A Tox Hazard Subst Environ Eng 2019; 54:924-932. [PMID: 31046566 DOI: 10.1080/10934529.2019.1609321] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/11/2018] [Revised: 04/11/2019] [Accepted: 04/12/2019] [Indexed: 06/09/2023]
Abstract
The multi-walled carbon nanotubes-branched polyethyleneimine (MWCNTs-BPEI) adsorbent composite material was employed to separate and pre-concentrate As(V) in water samples. The characterization of MWCNTs-BPEI by X-ray diffraction (XRD), thermogravimetric analysis (TGA), Fourier transform infrared (FTIR) spectroscopy and Raman spectroscopy showed successful modification of the composite. The MWCNTs-BPEI composite exhibited selective retention of As(V) in the presence of As(III) in water samples of pH 7 using 40 mg of composite as adsorbent. The pre-concentrated As(V) was quantified using inductively coupled plasma-mass spectrometry (ICP-MS). A limit of detection (LOD) of 0.0537 µg L-1 and limit of quantification (LOQ) of 0.179 µg L-1 were achieved along with pre-concentration factor of 23.3. A percentage recovery of 81.0% confirm the accuracy of the method. The As(V) concentrations in water were in the range of 0.0612-3.65 µg L-1. The As(V) concentrations determined using solid-phase extraction (SPE) procedure were in good agreement with the concentrations obtained using high performance liquid chromatography hyphenated to inductively coupled mass-mass spectrometry (HPLC hyphenated to ICP-MS).
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Affiliation(s)
- Mokgehle R Letsoalo
- a Department of Chemistry , University of Johannesburg , Auckland Park , South Africa
| | - Taddese W Godeto
- a Department of Chemistry , University of Johannesburg , Auckland Park , South Africa
- c Laboratory Services Branch , Ministry of the Environment and Climate Change , Toronto , Canada
| | - Takalani Magadzu
- b Department of Chemistry , University of Limpopo , Sovenga , South Africa
| | - Abayneh A Ambushe
- a Department of Chemistry , University of Johannesburg , Auckland Park , South Africa
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Redan BW, Jablonski JE, Halverson C, Jaganathan J, Mabud MA, Jackson LS. Factors Affecting Transfer of the Heavy Metals Arsenic, Lead, and Cadmium from Diatomaceous-Earth Filter Aids to Alcoholic Beverages during Laboratory-Scale Filtration. J Agric Food Chem 2019; 67:2670-2678. [PMID: 30784277 PMCID: PMC9116435 DOI: 10.1021/acs.jafc.8b06062] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
Filtration methods for alcoholic fermented beverages often use filter aids such as diatomaceous earth (DE), which may contain elevated amounts of the heavy metals arsenic (As), lead (Pb), and cadmium (Cd). Here, we evaluated factors affecting transfer of these heavy metals from DE to beer and wine. A laboratory-scale filtration system was used to process unfiltered ale, lager, red wine, and white wine with three types of food-grade DE. Filtrate and DE were analyzed for heavy metals using ICP-MS, in addition to LC-ICP-MS for As-speciation analysis. Use of 2 g/L DE containing 5.4 mg/kg soluble inorganic As (iAs) for filtering beer and wine resulted in significant ( p < 0.05) increases of 11.2-13.7 μg/L iAs in the filtered beverage. There was a significant ( p < 0.05) effect from the DE quantity used in filtration on the transfer of iAs in all beverage types, whereas no alterations were observed for Pb and Cd levels. Methods to wash DE using water, citric acid, or EDTA all significantly ( p < 0.05) reduced iAs concentrations, whereas only EDTA significantly reduced Pb levels. Cd concentrations were not affected by any wash method. These data indicate that specific steps can be taken to limit heavy-metal transfer from DE filter aids to beer and wine.
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Affiliation(s)
- Benjamin W. Redan
- U.S. Food and Drug Administration, Center for Food Safety and Applied Nutrition, Office of Food Safety, Division of Food Processing Science and Technology
| | - Joseph E. Jablonski
- U.S. Food and Drug Administration, Center for Food Safety and Applied Nutrition, Office of Food Safety, Division of Food Processing Science and Technology
| | - Catherine Halverson
- U.S. Department of the Treasury, Alcohol and Tobacco Tax and Trade Bureau, Scientific Services Division
| | - James Jaganathan
- U.S. Department of the Treasury, Alcohol and Tobacco Tax and Trade Bureau, Scientific Services Division
| | - Md. Abdul Mabud
- U.S. Department of the Treasury, Alcohol and Tobacco Tax and Trade Bureau, Scientific Services Division
| | - Lauren S. Jackson
- U.S. Food and Drug Administration, Center for Food Safety and Applied Nutrition, Office of Food Safety, Division of Food Processing Science and Technology
- Corresponding author: Tel: 708-924-0616; Fax: 708-924-0690;
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Chiocchetti GM, Vélez D, Devesa V. Effect of chronic exposure to inorganic arsenic on intestinal cells. J Appl Toxicol 2019; 39:899-907. [PMID: 30748021 DOI: 10.1002/jat.3778] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2018] [Revised: 12/27/2018] [Accepted: 12/27/2018] [Indexed: 01/10/2023]
Abstract
Chronic exposure to inorganic arsenic (As)-As(III) + As(V)-is associated with type 2 diabetes, vascular diseases and various types of cancer. Although the oral route is the main way of exposure to inorganic As, the adverse gastrointestinal effects produced by chronic exposure are not well documented. The aim of the present study is to evaluate the effect of chronic exposure to As(III) on the intestinal epithelium. For this purpose, NCM460 cells, non-transformed epithelial cells from the human colon, were exposed to As(III) (0.01-0.2 mg/L) for 6 months and monitored for acquisition of a tumor-like phenotype. Secretion of matrix metalloproteinases, histone modifications (H3 acetylation), hyperproliferation capacity, formation of floating spheres, anchorage-independent growth, release of cytokine interleukin-8 and expression of relevant genes in colon tumorigenesis were assessed. The results show a maintained proinflammatory response from the beginning, with an increase in interleukin-8 secretion (≤570%). Downregulation of CDX1 and CDX2 was also observed. After 14 weeks of exposure, cells presented marked increases in matrix metalloproteinase-2 secretion and histone modifications. As(III)-treated cells were hyperproliferative, grew in low-serum media and were able to form free-floating spheres. Overall, these data suggest that exposure of human colon epithelial cells to As(III) facilitates acquisition of transformed cell characteristics.
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Affiliation(s)
- Gabriela M Chiocchetti
- Instituto de Agroquímica y Tecnología de Alimentos (IATA-CSIC), Calle Agustín Escardino 7, 46980, Paterna, Valencia, Spain
| | - Dinoraz Vélez
- Instituto de Agroquímica y Tecnología de Alimentos (IATA-CSIC), Calle Agustín Escardino 7, 46980, Paterna, Valencia, Spain
| | - Vicenta Devesa
- Instituto de Agroquímica y Tecnología de Alimentos (IATA-CSIC), Calle Agustín Escardino 7, 46980, Paterna, Valencia, Spain
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Gao N, Yao X, Jiang L, Yang L, Qiu T, Wang Z, Pei P, Yang G, Liu X, Sun X. Taurine improves low-level inorganic arsenic-induced insulin resistance by activating PPARγ-mTORC2 signalling and inhibiting hepatic autophagy. J Cell Physiol 2018; 234:5143-5152. [PMID: 30362509 DOI: 10.1002/jcp.27318] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2018] [Accepted: 08/03/2018] [Indexed: 01/01/2023]
Abstract
Inorganic arsenic (iAs) is reportedly associated with the increased incidence of type 2 diabetes in the population. Here, we found that iAs exposure significantly decreased the expression of glycolytic genes and glycogen content and increased gluconeogenesis gene levels in C57/BL6J mice. The expression of peroxisome proliferator-activated receptor γ (PPARγ), and mechanistic target of rapamycin complex 2 (mTORC2) were decreased in the livers of iAs-treated mice. Furthermore, in iAs-treated HepG2 cells, we found that PPARγ agonist rosiglitazone (RGS) increased the expression of mTORC2, inhibited autophagy, and improved glucose metabolism. mTORC2 agonist palmitic acid inhibited autophagy and improved glucose metabolism as well as the autophagosome formation inhibitor 3-methyladenine. Taurine, a natural compound, reversed impaired glucose metabolism and decreased expression of PPARγ and mTORC2 induced by iAs in mice liver and HepG2 cells. These data indicated that taurine administration could ameliorate iAs-induced insulin resistance through activating PPARγ-mTORC2 signalling and subsequently inhibiting hepatic autophagy.
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Affiliation(s)
- Ni Gao
- Department of Occupational and Environmental Health, Dalian Medical University, Dalian, China
| | - Xiaofeng Yao
- Department of Occupational and Environmental Health, Dalian Medical University, Dalian, China
| | - Liping Jiang
- Liaoning Anti-Degenerative Diseases Natural Products Engineering Research Center, Dalian Medical University, Dalian, China
| | - Lei Yang
- Department of Occupational and Environmental Health, Dalian Medical University, Dalian, China
| | - Tianming Qiu
- Department of Occupational and Environmental Health, Dalian Medical University, Dalian, China
| | - Zhidong Wang
- Department of Occupational and Environmental Health, Dalian Medical University, Dalian, China
| | - Pei Pei
- Department of Occupational and Environmental Health, Dalian Medical University, Dalian, China
| | - Guang Yang
- Department of Nutrition & Food Safety, School of Public Health, Dalian Medical University, Dalian, China
| | - Xiaofang Liu
- Department of Nutrition & Food Safety, School of Public Health, Dalian Medical University, Dalian, China
| | - Xiance Sun
- Department of Occupational and Environmental Health, Dalian Medical University, Dalian, China
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Kim SY, Seo D, Yoo M, Lee KG. Analysis of Arsenic Species in Processed Rice Bran Products Using HPLC-ICP-MS. J Food Sci 2018; 83:2682-2687. [PMID: 30211953 DOI: 10.1111/1750-3841.14339] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2018] [Revised: 07/24/2018] [Accepted: 08/06/2018] [Indexed: 11/28/2022]
Abstract
The purpose of this study was to compare the content of arsenic species (As(V), monomethylarsonic acid [MMA], As(III), and dimethylarsinic acid [DMA]) in products, such as bran powder and tablets, using high-performance liquid chromatography-inductively coupled plasma mass spectrometry, and to determine the risk of human exposure to inorganic arsenic (iAs). The products presented As(III) > As(V) > DMA > MMA, at 241.03 to 579.35, 43.41 to 271.91, 15.16 to 30.43, and limit of quantification to 14.31 μg/kg, respectively. The contents of arsenic species tended to differ among the products (P < 0.05). When the maximum level (0.2 mg/kg) of iAs in white rice was applied to products, it exceeded 1.4 to 3.3 times as 284.43 to 767.10 μg/kg. Also, if more than 109.42 g/day of rice bran powder product containing 767.10 μg/kg as iAs was ingested, the provisional tolerable weekly intake (9.0 μg/kg body weight/wk) was exceeded. PRACTICAL APPLICATION This study could provide analysis necessary of As for defining an accurate risk assessment of products and tablets containing rice bran powder. In addition with this study, the regulations for As contents in rice bran power products would be set.
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Affiliation(s)
- So Young Kim
- Dept. of Food Science and Biotechnology, Dongguk Univ.-Seoul, 32, Dongguk-ro, Ilsandong-gu, Goyang-si, Gyeonggi-do, Republic of Korea.,Food Analysis Center, Div. of Strategic Food Research, Korea Food Research Inst., 245, Nongsaengmyeong-ro, Iseo-myeon, Wanju-gun, Jeollabuk-do 55365, Republic of Korea
| | - Dongwon Seo
- Food Analysis Center, Div. of Strategic Food Research, Korea Food Research Inst., 245, Nongsaengmyeong-ro, Iseo-myeon, Wanju-gun, Jeollabuk-do 55365, Republic of Korea
| | - Miyoung Yoo
- Food Analysis Center, Div. of Strategic Food Research, Korea Food Research Inst., 245, Nongsaengmyeong-ro, Iseo-myeon, Wanju-gun, Jeollabuk-do 55365, Republic of Korea
| | - Kwang-Geun Lee
- Dept. of Food Science and Biotechnology, Dongguk Univ.-Seoul, 32, Dongguk-ro, Ilsandong-gu, Goyang-si, Gyeonggi-do, Republic of Korea
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Muñoz MP, Valdés M, Muñoz-Quezada MT, Lucero B, Rubilar P, Pino P, Iglesias V. Urinary Inorganic Arsenic Concentration and Gestational Diabetes Mellitus in Pregnant Women from Arica, Chile. Int J Environ Res Public Health 2018; 15:ijerph15071418. [PMID: 29976896 PMCID: PMC6069383 DOI: 10.3390/ijerph15071418] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Subscribe] [Scholar Register] [Received: 05/28/2018] [Revised: 07/02/2018] [Accepted: 07/03/2018] [Indexed: 12/25/2022]
Abstract
Introduction: The association of total arsenic exposure with impaired glucose tolerance and gestational diabetes has been shown; however, evidence regarding urinary inorganic arsenic in pregnant women is still limited. Our aim was to evaluate the association between urinary inorganic arsenic concentration and gestational diabetes among pregnant women living in Arica, Chile. Methods: Cross-sectional study of pregnant women receiving care at primary health centers in urban Arica. The exposure was urinary inorganic arsenic concentration, while gestational diabetes was the outcome. The association was evaluated using multiple logistic regression models adjusted by age, education level, ethnicity, and pre-pregnancy body mass index. Results: 244 pregnant women were surveyed. The median urinary inorganic arsenic was 14.95 μg/L, and the prevalence of gestational diabetes was 8.6%. After adjusting, we did not find a significant association between gestational diabetes and inorganic arsenic exposure tertiles (Odds ratio (OR) 2.98, 95% CI = 0.87–10.18), (OR 1.07, 95% CI = 0.26–4.33). Conclusion: This study did not provide evidence on the relationship between urinary inorganic arsenic concentration and gestational diabetes. Further research is needed to elucidate the factors underlying this association.
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Affiliation(s)
- María Pía Muñoz
- Escuela de Salud Pública, Facultad de Medicina, Universidad de Chile, 8380453 Santiago, Chile.
| | - Macarena Valdés
- Escuela de Salud Pública, Facultad de Medicina, Universidad de Chile, 8380453 Santiago, Chile.
| | | | - Boris Lucero
- Facultad de Ciencias de la Salud, Universidad Católica del Maule, 3480112 Talca, Chile.
| | - Paola Rubilar
- Escuela de Salud Pública, Facultad de Medicina, Universidad de Chile, 8380453 Santiago, Chile.
| | - Paulina Pino
- Escuela de Salud Pública, Facultad de Medicina, Universidad de Chile, 8380453 Santiago, Chile.
| | - Verónica Iglesias
- Escuela de Salud Pública, Facultad de Medicina, Universidad de Chile, 8380453 Santiago, Chile.
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Abstract
BACKGROUND Prenatal exposure to inorganic arsenic (iAs) is associated with dysregulated fetal gene and protein expression. Potential biological mechanisms that underlie these changes include, but are not limited to, changes to the epigenome. OBJECTIVE The aim of the present study was to identify whether the expression of key genes, proteins, or both and their associated biological pathways are perturbed by compiling datasets from studies on prenatal arsenic exposure. METHODS We compiled datasets from 12 studies that analyzed the relationship between prenatal iAs exposure and changes to the fetal epigenome (5-methyl cytosine), transcriptome (mRNA expression), and/or proteome (protein expression). FINDINGS Across the 12 studies, a set of 845 unique genes was identified and found to enrich for their role in biological pathways, including the peroxisome proliferator-activated receptor, nuclear factor of kappa light polypeptide gene enhancer in B-cells inhibitor, and the glucocorticoid receptor. Tumor necrosis factor was identified as a putative cellular regulator underlying most (n = 277) of the identified iAs-associated gene or protein expression changes. CONCLUSIONS The identification of the common set of genes across numerous human cohorts suggests a conserved biological response to prenatal arsenic exposure. The genes/proteins and their associated pathways may be useful in future mechanistic investigations of iAs associated diseases.
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Affiliation(s)
- Jessica E Laine
- Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina, Chapel Hill, NC.
| | - Rebecca C Fry
- Department of Environmental Sciences and Engineering, Gillings School of Global Public Health, University of North Carolina, Chapel Hill, NC
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Abstract
In this study the concentration of total arsenic (As) and arsenic species (inorganic As, arsenobetaine, dimethylarsinate, and methylarsonate) was monitored in different foodstuffs (rice, vegetables, algae, fish, crustacean, molluscs) before and after preparation using common kitchen practices. By measuring the water content of the foodstuff and by reporting arsenic concentrations on a dry weight base, we were able to distinguish between As release effects due to food preparation and As decrease due to changes in moisture content upon food preparation. Arsenic species were released to the broth during boiling, steaming, frying, or soaking of the food. Concentrations declined with maxima of 57% for total arsenic, 65% for inorganic As, and 32% for arsenobetaine. On the basis of a combination of our own results and literature data, we conclude that the extent of this release of arsenic species is species specific, with inorganic arsenic species being released most easily, followed by the small organic As species and the large organic As species.
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Affiliation(s)
- Karlien Cheyns
- Veterinary and Agrochemical Research Centre (CODA-CERVA) , Leuvensesteenweg 17, 3080 Tervuren, Belgium
| | - Nadia Waegeneers
- Veterinary and Agrochemical Research Centre (CODA-CERVA) , Leuvensesteenweg 17, 3080 Tervuren, Belgium
| | - Tom Van de Wiele
- Center for Microbial Ecology and Technology (CMET), Ghent University , Coupure Links 653, 9000 Ghent, Belgium
| | - Ann Ruttens
- Veterinary and Agrochemical Research Centre (CODA-CERVA) , Leuvensesteenweg 17, 3080 Tervuren, Belgium
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Mania M, Rebeniak M, Szynal T, Starska K, Wojciechowska-Mazurek M, Postupolski J. Exposure assessment of the population in Poland to the toxic effects of arsenic compounds present in rice and rice based products. Rocz Panstw Zakl Hig 2017; 68:339-346. [PMID: 29264911] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/07/2023] Open
Abstract
BACKGROUND Rice is a staple food for many people in the world and an important ingredient for production of food for infants and young children. According to European Food Safety Authority (EFSA), cereals, primarily rice and rice products, are an important source of human exposure to inorganic arsenic, which has been classified by the International Agency for Research on Cancer (IARC) as group I carcinogen. Arsenic is present in rice and rice products mainly as an inorganic form being more toxic than organic compounds OBJECTIVES The aim of the study was to determine the total and inorganic arsenic content in rice, rice-based products including food for infants and young children available on the market in Poland and thus to estimate consumer exposure to inorganic arsenic from these groups of foodstuffs MATERIALS AND METHODS A total of 62 samples of rice and rice products from trade, including a group of rice products for infants and young children, were tested. Contents of total and inorganic arsenic were determined by using hydride generation atomic absorption spectrometry (HGAAS), after dry mineralization of samples and reduction of arsenic to arsenic hydride with sodium borohydride. To extract the inorganic arsenic forms, the samples were subjected to hydrolysis in concentrated HCl and then reduced in the presence of hydrobromic acid and hydrazine sulphate after which triple chloroform extractions and triple 1M HCl re-extractions were performed. Exposure of different groups of populations (adults and children), was estimated in relation to the Benchmark Dose Lower Confidence Limit (BMDL05) as set by the Joint FAO/WHO Expert Committee on Food Additives (JECFA) that resulted in a 0.5% increase in lung cancer (3.0 µg/kg body weight (b.w.) per day) RESULTS Mean content of total and inorganic arsenic in investigated rice samples was 0.12 mg/kg (median: 0.09 mg/kg; 90th percentile 0.22 mg/kg) and 0.04 mg/kg (median: 0.03 mg/kg, 90th percentile 0.07 mg/kg). Brown rice was found to be more highly contaminated with both total and inorganic arsenic than white rice. Mean contamination of brown rice with total arsenic and inorganic arsenic was: 0.18 mg/kg (median: 0.12 mg/kg, 90th percentile: 0.32 mg/kg) and 0.05 mg/kg (median: 0.05 mg/kg, 90th percentile: 0.07 mg/kg). In turn for the white rice contamination was lower, mean total arsenic content: 0.10 mg/kg (median: 0.08 mg/kg, 90th percentile: 0.19 mg/kg) and mean inorganic arsenic: 0.03 mg/kg (median: 0.03 mg/kg, 90th percentile: 0.06 mg/kg). Contamination of rice-based products both total and inorganic arsenic was similar to those reported for rice, except rice wafers (mean: 0.24 mg/kg and 0.13 mg/kg). In the group of products for infants and young children obtained results were low – mean total arsenic content was 0.06 mg/kg and inorganic arsenic 0.02 mg/kg. The estimated average adult and children’s exposure to inorganic arsenic with rice and rice products was less than 1% of the BMDL05. Intake of inorganic arsenic by 12-month-old infants with ricebased products intended for this group of population was at 6% BMDL05 CONCLUSIONS Based on the obtained results, it was found that the content of total and inorganic arsenic in investigated samples of rice and rice products did not pose a health risk even though contamination levels in some individual samples were significant
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Affiliation(s)
- Monika Mania
- National Institute of Public Health-National Institute of Hygiene, Department of Food Safety, Warsaw, Poland
| | - Małgorzata Rebeniak
- National Institute of Public Health-National Institute of Hygiene, Department of Food Safety, Warsaw, Poland
| | - Tomasz Szynal
- National Institute of Public Health-National Institute of Hygiene, Department of Food Safety, Warsaw, Poland
| | - Krystyna Starska
- National Institute of Public Health-National Institute of Hygiene, Department of Food Safety, Warsaw, Poland
| | - Maria Wojciechowska-Mazurek
- National Institute of Public Health-National Institute of Hygiene, Department of Food Safety, Warsaw, Poland
| | - Jacek Postupolski
- National Institute of Public Health-National Institute of Hygiene, Department of Food Safety, Warsaw, Poland
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Taheri M, Mehrzad J, Afshari R, Saleh-Moghaddam M, Mahmudy Gharaie MH. Inorganic arsenic can be potent granulotoxin in mammalian neutrophils in vitro. J Immunotoxicol 2016; 13:686-93. [PMID: 27416995 DOI: 10.3109/1547691x.2016.1159625] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
An important outcome arising out of occupational/environmental exposure to arsenic (As) is immunotoxicity. To determine the impact of inorganic As on innate immune cells, effects of a low dose of NaAsO2 (i.e. 20 ng As/ml) on select parameters associated with human and bovine neutrophils (PMN) were evaluated in vitro. PMN isolated from the blood of healthy individuals and cows (n = 8/treatment) were pre-incubated with NaAsO2 for 12 h before effects on PMN phagocytosis, transcription of TLR2, TLR4 and CD64 in human PMN - as well as on phagocytosis-dependent/-independent cell chemiluminescence (CL), phagocytosis and killing of Staphylococcus aureus and Escherichia coli, PMN H2O2 production and necrosis and TLR4 transcription in bovine PMN - were assessed. Relative to control (no As) PMN, treatment with As significantly decreased phagocytic capacity and CD64 mRNA, but increased TLR2 and TLR4 mRNA, in human PMN. In bovine PMN, while As also led to increased TLR4 mRNA abundance, it resulted in decreases in phagocytosis-dependent and -independent CL, PMN H2O2 production, PMN phagocytosis and killing of both E. coli and S. aureus by PMN. Considering the broad roles of PMN in immunology, the results of these studies increase our understanding of functional consequences of As exposure in inducing immunotoxicity and increasing susceptibility to (infectious) diseases in mammals.
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Affiliation(s)
- Masumeh Taheri
- a Biochemistry Section, Department of Biology , Payame Noor University of Mashhad , Mashhad , Iran
| | - Jalil Mehrzad
- b Department of Pathobiology , Immunology and Biotechnology Sections, Institute of Biotechnology, Ferdowsi University of Mashhad , Mashhad , Iran
| | - Reza Afshari
- c Medical Toxicology Research Center, Mashhad University of Medical Sciences , Mashhad , Iran
| | - Massoud Saleh-Moghaddam
- a Biochemistry Section, Department of Biology , Payame Noor University of Mashhad , Mashhad , Iran
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Oguri T, Yoshinaga J, Toshima H, Mizumoto Y, Hatakeyama S, Tokuoka S. Urinary inorganic arsenic concentrations and semen quality of male partners of subfertile couples in Tokyo. J Environ Sci Health A Tox Hazard Subst Environ Eng 2016; 51:463-466. [PMID: 26865228 DOI: 10.1080/10934529.2015.1128711] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Inorganic arsenic (iAs) has been known as a testicular toxicant in experimental rodents. Possible association between iAs exposure and semen quality (semen volume, sperm concentration, and sperm motility) was explored in male partners of couples (n = 42) who visited a gynecology clinic in Tokyo for infertility consultation. Semen parameters were measured according to WHO guideline at the clinic, and urinary iAs and methylarsonic acid (MMA), and dimethylarsinic acid concentrations were determined by liquid chromatography-hydride generation-ICP mass spectrometry. Biological attributes, dietary habits, and exposure levels to other chemicals with known effects on semen parameters were taken into consideration as covariates. Multiple regression analyses and logistic regression analyses did not find iAs exposure as significant contributor to semen parameters. Lower exposure level of subjects (estimated to be 0.5 μg kg(-1) day(-1)) was considered a reason of the absence of adverse effects on semen parameters, which were seen in rodents dosed with 4-7.5 mg kg(-1).
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Affiliation(s)
- Tomoko Oguri
- a Department of Environmental Studies , University of Tokyo , Kashiwa , Chiba , Japan
- b Department of Occupational and Environmental Health , Nagoya City University Graduate School of Medical Sciences , Mizuho , Nagoya , Japan
| | - Jun Yoshinaga
- a Department of Environmental Studies , University of Tokyo , Kashiwa , Chiba , Japan
| | - Hiroki Toshima
- a Department of Environmental Studies , University of Tokyo , Kashiwa , Chiba , Japan
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Huang Y, Wang M, Mao X, Qian Y, Chen T, Zhang Y. Concentrations of Inorganic Arsenic in Milled Rice from China and Associated Dietary Exposure Assessment. J Agric Food Chem 2015; 63:10838-10845. [PMID: 26641731 DOI: 10.1021/acs.jafc.5b04164] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Total arsenic (As) and inorganic As (Asi) in milled rice (n = 1653) collected from China were studied to evaluate the contamination level, distribution, and health risks. The mean concentrations of the total As and Asi were 116.5 and 90.9 μg/kg, respectively. There were significant differences (P < 0.01) between the 11 provinces, and 1.1% of samples exceeded the maximum contaminant level established by Chinese legislation. According to the exposure assessment method of probabilistic simulation, all values of the target hazard quotients (THQs) for chronic noncarcinogenic risks (skin lesions as the point of departure) were below 1, suggesting that the Chinese population will not encounter a significant noncarcinogenic risk. However, the mean values of margin of exposure (MOE) for lung cancer risks ranging from 3.86 to 8.54 were under 100 for all age groups and genders of the Chinese population; moreover, MOE values for some major rice-producing and -consuming countries, such as Japan, Thailand, Bangladesh, and the United States, were all also below 100. More attention should be paid to carcinogenic risks from rice Asi intake, and some control measures to reduce rice Asi intake should be taken.
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Affiliation(s)
- Yatao Huang
- Institute of Quality Standard and Testing Technology for Agro-products, Chinese Academy of Agricultural Sciences, and Key Laboratory of Agro-food Safety and Quality, Ministry of Agriculture, Beijing 100081, China
- Institute of Agro-Products Processing Science and Technology, Chinese Academy of Agricultural Sciences, and Laboratory of Risk Assessment for Processed Agro-food Quality and Safety, Ministry of Agriculture (Beijing), Beijing 100193, China
| | - Min Wang
- Institute of Quality Standard and Testing Technology for Agro-products, Chinese Academy of Agricultural Sciences, and Key Laboratory of Agro-food Safety and Quality, Ministry of Agriculture, Beijing 100081, China
| | - Xuefei Mao
- Institute of Quality Standard and Testing Technology for Agro-products, Chinese Academy of Agricultural Sciences, and Key Laboratory of Agro-food Safety and Quality, Ministry of Agriculture, Beijing 100081, China
| | - Yongzhong Qian
- Institute of Quality Standard and Testing Technology for Agro-products, Chinese Academy of Agricultural Sciences, and Key Laboratory of Agro-food Safety and Quality, Ministry of Agriculture, Beijing 100081, China
| | - Tianjin Chen
- Institute of Quality Standard and Testing Technology for Agro-products, Chinese Academy of Agricultural Sciences, and Key Laboratory of Agro-food Safety and Quality, Ministry of Agriculture, Beijing 100081, China
| | - Ying Zhang
- Institute of Quality Standard and Testing Technology for Agro-products, Chinese Academy of Agricultural Sciences, and Key Laboratory of Agro-food Safety and Quality, Ministry of Agriculture, Beijing 100081, China
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Gray PJ, Conklin SD, Todorov TI, Kasko SM. Cooking rice in excess water reduces both arsenic and enriched vitamins in the cooked grain. Food Addit Contam Part A Chem Anal Control Expo Risk Assess 2015; 33:78-85. [PMID: 26515534 DOI: 10.1080/19440049.2015.1103906] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
This paper reports the effects of rinsing rice and cooking it in variable amounts of water on total arsenic, inorganic arsenic, iron, cadmium, manganese, folate, thiamin and niacin in the cooked grain. We prepared multiple rice varietals both rinsed and unrinsed and with varying amounts of cooking water. Rinsing rice before cooking has a minimal effect on the arsenic (As) content of the cooked grain, but washes enriched iron, folate, thiamin and niacin from polished and parboiled rice. Cooking rice in excess water efficiently reduces the amount of As in the cooked grain. Excess water cooking reduces average inorganic As by 40% from long grain polished, 60% from parboiled and 50% from brown rice. Iron, folate, niacin and thiamin are reduced by 50-70% for enriched polished and parboiled rice, but significantly less so for brown rice, which is not enriched.
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Affiliation(s)
- Patrick J Gray
- a Division of Bioanalytical Chemistry, Office of Regulatory Science, Center for Food Safety and Applied Nutrition , US Food and Drug Administration (USFDA) , College Park , MD , USA
| | - Sean D Conklin
- a Division of Bioanalytical Chemistry, Office of Regulatory Science, Center for Food Safety and Applied Nutrition , US Food and Drug Administration (USFDA) , College Park , MD , USA
| | - Todor I Todorov
- a Division of Bioanalytical Chemistry, Office of Regulatory Science, Center for Food Safety and Applied Nutrition , US Food and Drug Administration (USFDA) , College Park , MD , USA
| | - Sasha M Kasko
- a Division of Bioanalytical Chemistry, Office of Regulatory Science, Center for Food Safety and Applied Nutrition , US Food and Drug Administration (USFDA) , College Park , MD , USA
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Ahmadi-Jouibari T, Fattahi N. Speciation of inorganic arsenic species and total inorganic arsenic in rice using microwave-assisted dispersive liquid-liquid micro-extraction and electrothermal atomic absorption spectrometry. Food Addit Contam Part A Chem Anal Control Expo Risk Assess 2015; 32:1140-7. [PMID: 25959514 DOI: 10.1080/19440049.2015.1049565] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
Human exposure to inorganic arsenic (iAs) via rice consumption is of increasing concern. In the present study, microwave-assisted dispersive liquid-liquid micro-extraction (MADLLME) and electrothermal atomic absorption spectrometry (ETAAS) were developed for the speciation of iAs in rice samples. After microwave-assisted digestion, the As(III) ion reacted with diethyldithiophosphoric acid (DDTP) to form an As-DDTP complex and was extracted at the same time. Some parameters affecting digestion, complex formation, and extraction were studied and optimised. Under the optimised conditions, a detection limit of 0.2 µg kg(-1) with a correlation coefficient of 0.9901 were obtained with a calibration curve in the range of 0.5-200 µg kg(-1). Total iAs was determined after reduction of As(V) to As(III) with sodium thiosulfate and potassium iodide, and As(V) was calculated by difference. The proposed extraction procedure was successfully applied for the determination of iAs ions in certified reference materials (NIST CRM 1568a and NMIJ CRM 7503a) and 10 rice samples produced in Iran and other Asian countries.
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Affiliation(s)
- Toraj Ahmadi-Jouibari
- a Clinical Research Development Center, Imam Khomeini Hospital , Kermanshah University of Medical Sciences , Kermanshah , Iran
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Karagas MR, Gossai A, Pierce B, Ahsan H. Drinking Water Arsenic Contamination, Skin Lesions, and Malignancies: A Systematic Review of the Global Evidence. Curr Environ Health Rep 2015; 2:52-68. [PMID: 26231242 PMCID: PMC4522704 DOI: 10.1007/s40572-014-0040-x] [Citation(s) in RCA: 100] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
Skin lesions and cancer are known manifestations of chronic exposure to arsenic contaminated drinking water. Epidemiologic data primarily comes from regions with exposures 1-2 orders of magnitude above the current World Health Organization (WHO) guidelines of 10 μg/L. Emerging evidence indicates that more common exposures may also be related to both noncancerous and cancerous changes to the skin. In this review, we focus on the body of epidemiologic literature that encompasses exposures within the WHO guidelines, excluding studies that lacked individual exposure estimates and case reports. For skin lesions and skin cancers, 15 and 10 studies were identified that met our criteria, respectively. For skin lesions, a consistent dose-response relationship with water arsenic has been observed, with increased risk evident at low- to moderate-dose exposure. Of the larger studies of specific histologic types of skin cancers, although with differing exposure definitions, there was evidence of dose-related relationships with both basal cell carcinomas and squamous cell carcinomas. The effect of arsenic exposure on skin lesion risk is likely modified by genetic variants that influence arsenic metabolism. Accumulating evidence suggests that arsenic may increase risk of skin lesions and skin cancers at levels not previously considered harmful, and that genetic factors may influence risk.
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Affiliation(s)
- Margaret R. Karagas
- Department of Epidemiology, Geisel School of Medicine, Dartmouth College, 1 Rope Ferry Road Hanover, New Hampshire
| | - Anala Gossai
- Department of Epidemiology, Geisel School of Medicine, Dartmouth College, 1 Rope Ferry Road Hanover, New Hampshire
| | - Brandon Pierce
- Department of Public Health Sciences, University of Chicago. 5841 S. Maryland Ave., MC 2007, Chicago, Illinois 60637
| | - Habibul Ahsan
- Department of Public Health Sciences, University of Chicago. 5841 S. Maryland Ave., MC 2007, Chicago, Illinois 60637
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