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Xiong C, Glabonjat RA, Al Amin MH, Stiboller M, Yoshinaga J, Francesconi KA. Arsenolipids in salmon are partly converted to thioxo analogs during cooking. J Trace Elem Med Biol 2022; 69:126892. [PMID: 34798512 DOI: 10.1016/j.jtemb.2021.126892] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Accepted: 10/31/2021] [Indexed: 11/22/2022]
Abstract
BACKGROUND Arsenic hydrocarbons, major arsenolipids occurring naturally in marine fish, have substantial cytotoxicity leading to human health-related studies of their distribution and abundance in foods. These studies have all investigated fresh foods; because most fish are cooked before being consumed, it is both food- and health-relevant to determine the arsenolipids present in cooked fish. METHODS We used HPLC/mass spectrometry to investigate the arsenolipids present in salmon (Salmo salar) before and after cooking by either baking or steaming. RESULTS In raw salmon (total As 2.74 mg kg-1 dry mass, of which 6% was lipid-soluble), major arsenolipids were three arsenic hydrocarbons (oxo-AsHC 332, oxo-AsHC 360, and oxo-AsHC 404, ca 55% of total arsenolipids) and a band of unidentified less-polar arsenolipids (ca 40%), trace amounts of another four arsenic hydrocarbons and two thioxo analogs were also detected. During the cooking process, 28% of the oxo-AsHCs were converted to their thioxo analogs. CONCLUSION Our study shows that arsenic hydrocarbons naturally present in fresh fish are partly converted to their thioxo analogs during cooking by either baking or steaming. The greater lipophilicity of the thioxo analogs could alter the mode of toxicity of arsenic hydrocarbons, and hence future food regulations for arsenic should consider the influence of cooking on the precise type of arsenolipid in fish.
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Affiliation(s)
- Chan Xiong
- Institute of Chemistry, NAWI Graz, University of Graz, 8010, Graz, Austria.
| | - Ronald A Glabonjat
- Institute of Chemistry, NAWI Graz, University of Graz, 8010, Graz, Austria; Department of Environmental Health Sciences, Mailman School of Public Health, Columbia University, New York, NY, 10032, USA
| | - Md Hasan Al Amin
- Faculty of Life Sciences, Toyo University, Gumma, 374-0193, Japan
| | - Michael Stiboller
- Institute of Chemistry, NAWI Graz, University of Graz, 8010, Graz, Austria; Institute of Nutritional Science, Food Chemistry, University of Potsdam, 14558, Nuthetal, Germany
| | - Jun Yoshinaga
- Faculty of Life Sciences, Toyo University, Gumma, 374-0193, Japan
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Glabonjat RA, Raber G, Holm HC, Van Mooy BAS, Francesconi KA. Arsenolipids in Plankton from High- and Low-Nutrient Oceanic Waters Along a Transect in the North Atlantic. Environ Sci Technol 2021; 55:5515-5524. [PMID: 33789045 DOI: 10.1021/acs.est.0c06901] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Although the natural occurrence of arsenic-containing lipids (arsenolipids) in marine organisms is now well established, the possible role of these unusual compounds in organisms and in the cycling of arsenic in marine systems remains largely unexplored. We report the finding of arsenolipids in 61 plankton samples collected from surface marine waters of high- and low-nutrient content along a transect spanning the Gulf Stream in the North Atlantic Ocean. Using high-performance liquid chromatography (HPLC) coupled to both elemental and molecular mass spectrometry, we show that all 61 plankton samples contained six identifiable arsenolipids, namely, three arsenosugar phospholipids (AsPL958, 10-13%; AsPL978, 13-25%; and AsPL1006, 7-10% of total arsenolipids), two arsenic-containing hydrocarbons (AsHC332, 4-10% and AsHC360, 1-2%), and a methoxy-sugar arsenolipid that contained phytol (AsSugPhytol, 1-3%). The relative amounts of the six arsenolipids showed clear dependence on the nutrient status of the ambient water with plankton collected from high-nutrient waters having less of the arsenosugar phospholipids and more of the three non-P containing arsenolipids compared to low-nutrient waters. By combining these first field data of arsenolipids in plankton with reported global phytoplankton productivity, we estimate that the oceans' phytoplankton transform per year 50 000-100 000 tons of arsenic into arsenolipids.
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Affiliation(s)
- Ronald A Glabonjat
- Institute of Chemistry, University of Graz, NAWI-Graz, 8010 Graz, Austria
| | - Georg Raber
- Institute of Chemistry, University of Graz, NAWI-Graz, 8010 Graz, Austria
| | - Henry C Holm
- Department of Marine Chemistry and Geochemistry, Woods Hole Oceanographic Institution, Woods Hole, Massachusetts 02543, United States
| | - Benjamin A S Van Mooy
- Department of Marine Chemistry and Geochemistry, Woods Hole Oceanographic Institution, Woods Hole, Massachusetts 02543, United States
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Finke H, Wandt VK, Ebert F, Guttenberger N, Glabonjat RA, Stiboller M, Francesconi KA, Raber G, Schwerdtle T. Toxicological assessment of arsenic-containing phosphatidylcholines in HepG2 cells. Metallomics 2020; 12:1159-1170. [PMID: 32459268 DOI: 10.1039/d0mt00073f] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Arsenolipids include a wide range of organic arsenic species that occur naturally in seafood and thereby contribute to human arsenic exposure. Recently arsenic-containing phosphatidylcholines (AsPCs) were identified in caviar, fish, and algae. In this first toxicological assessment of AsPCs, we investigated the stability of both the oxo- and thioxo-form of an AsPC under experimental conditions, and analyzed cell viability, indicators of genotoxicity and biotransformation in human liver cancer cells (HepG2). Precise toxicity data could not be obtained owing to the low solubility in the cell culture medium of the thioxo-form, and the ease of hydrolysis of the oxo-form, and to a lesser degree the thioxo-form. Hydrolysis resulted amongst others in the respective constituent arsenic-containing fatty acid (AsFA). Incubation of the cells with oxo-AsPC resulted in a toxicity similar to that determined for the hydrolysis product oxo-AsFA alone, and there were no indices for genotoxicity. Furthermore, the oxo-AsPC was readily taken up by the cells resulting in high cellular arsenic concentrations (50 μM incubation: 1112 ± 146 μM As cellular), whereas the thioxo-AsPC was substantially less bioavailable (50 μM incubation: 293 ± 115 μM As cellular). Speciation analysis revealed biotransformation of the AsPCs to a series of AsFAs in the culture medium, and, in the case of the oxo-AsPC, to as yet unidentified arsenic species in cell pellets. The results reveal the difficulty of toxicity studies of AsPCs in vitro, indicate that their toxicity might be largely governed by their arsenic fatty acid content and suggest a multifaceted human metabolism of food derived complex arsenolipids.
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Affiliation(s)
- Hannah Finke
- Department of Food Chemistry, Institute of Nutritional Science, University of Potsdam, Nuthetal, 14558, Germany.
| | - Viktoria K Wandt
- Department of Food Chemistry, Institute of Nutritional Science, University of Potsdam, Nuthetal, 14558, Germany. and TraceAge-DFG Research Unit on Interactions of Essential Trace Elements in Healthy and Diseased Elderly, Potsdam-Berlin-Jena, Germany
| | - Franziska Ebert
- Department of Food Chemistry, Institute of Nutritional Science, University of Potsdam, Nuthetal, 14558, Germany.
| | - Nikolaus Guttenberger
- Institute of Chemistry - Analytical Chemistry, NAWI Graz, University of Graz, Universitätsplatz 1, 8010 Graz, Austria
| | - Ronald A Glabonjat
- Institute of Chemistry - Analytical Chemistry, NAWI Graz, University of Graz, Universitätsplatz 1, 8010 Graz, Austria
| | - Michael Stiboller
- Department of Food Chemistry, Institute of Nutritional Science, University of Potsdam, Nuthetal, 14558, Germany. and Institute of Chemistry - Analytical Chemistry, NAWI Graz, University of Graz, Universitätsplatz 1, 8010 Graz, Austria
| | - Kevin A Francesconi
- Institute of Chemistry - Analytical Chemistry, NAWI Graz, University of Graz, Universitätsplatz 1, 8010 Graz, Austria
| | - Georg Raber
- Institute of Chemistry - Analytical Chemistry, NAWI Graz, University of Graz, Universitätsplatz 1, 8010 Graz, Austria
| | - Tanja Schwerdtle
- Department of Food Chemistry, Institute of Nutritional Science, University of Potsdam, Nuthetal, 14558, Germany. and TraceAge-DFG Research Unit on Interactions of Essential Trace Elements in Healthy and Diseased Elderly, Potsdam-Berlin-Jena, Germany
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Glabonjat RA, Blum JS, Miller LG, Webb SM, Stolz JF, Francesconi KA, Oremland RS. Arsenolipids in Cultured Picocystis Strain ML and Their Occurrence in Biota and Sediment from Mono Lake, California. Life (Basel) 2020; 10:life10060093. [PMID: 32599768 PMCID: PMC7345539 DOI: 10.3390/life10060093] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Revised: 06/19/2020] [Accepted: 06/22/2020] [Indexed: 12/21/2022] Open
Abstract
Primary production in Mono Lake, a hypersaline soda lake rich in dissolved inorganic arsenic, is dominated by Picocystis strain ML. We set out to determine if this photoautotrophic picoplankter could metabolize inorganic arsenic and in doing so form unusual arsenolipids (e.g., arsenic bound to 2-O-methyl ribosides) as reported in other saline ecosystems and by halophilic algae. We cultivated Picocystis strain ML on a seawater-based medium with either low (37 µM) or high (1000 µM) phosphate in the presence of arsenite (400 µM), arsenate (800 µM), or without arsenic additions (ca 0.025 µM). Cultivars formed a variety of organoarsenic compounds, including a phytyl 2-O-methyl arsenosugar, depending upon the cultivation conditions and arsenic exposure. When the cells were grown at low P, the organoarsenicals they produced when exposed to both arsenite and arsenate were primarily arsenolipids (~88%) with only a modest content of water-soluble organoarsenic compounds (e.g., arsenosugars). When grown at high P, sequestration shifted to primarily water-soluble, simple methylated arsenicals such as dimethylarsinate; arsenolipids still constituted ~32% of organoarsenic incorporated into cells exposed to arsenate but < 1% when exposed to arsenite. Curiously, Picocystis strain ML grown at low P and exposed to arsenate sequestered huge amounts of arsenic into the cells accounting for 13.3% of the dry biomass; cells grown at low P and arsenite exposure sequestered much lower amounts, equivalent to 0.35% of dry biomass. Extraction of a resistant phase with trifluoroacetate recovered most of the sequestered arsenic in the form of arsenate. Uptake of arsenate into low P-cultivated cells was confirmed by X-ray fluorescence, while XANES/EXAFS spectra indicated the sequestered arsenic was retained as an inorganic iron precipitate, similar to scorodite, rather than as an As-containing macromolecule. Samples from Mono Lake demonstrated the presence of a wide variety of organoarsenic compounds, including arsenosugar phospholipids, most prevalent in zooplankton (Artemia) and phytoplankton samples, with much lower amounts detected in the bottom sediments. These observations suggest a trophic transfer of organoarsenicals from the phytoplankton (Picocystis) to the zooplankton (Artemia) community, with efficient bacterial mineralization of any lysis-released organoarsenicals back to inorganic oxyanions before they sink to the sediments.
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Affiliation(s)
- Ronald A. Glabonjat
- Institute of Chemistry, NAWI Graz, University of Graz, 8010 Graz, Austria; (R.A.G.); (K.A.F.)
| | - Jodi S. Blum
- Water Mission Area, US Geological Survey, Menlo Park, CA 94025, USA; (J.S.B.); (L.G.M.)
| | - Laurence G. Miller
- Water Mission Area, US Geological Survey, Menlo Park, CA 94025, USA; (J.S.B.); (L.G.M.)
| | - Samuel M. Webb
- Stanford Synchrotron Radiation Lightsource, Menlo Park, CA 94025, USA;
| | - John F. Stolz
- Department of Biological Sciences, Duquesne University, Pittsburgh, PA 15282, USA;
| | - Kevin A. Francesconi
- Institute of Chemistry, NAWI Graz, University of Graz, 8010 Graz, Austria; (R.A.G.); (K.A.F.)
| | - Ronald S. Oremland
- Water Mission Area, US Geological Survey, Menlo Park, CA 94025, USA; (J.S.B.); (L.G.M.)
- Correspondence:
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Bozack AK, Domingo-Relloso A, Haack K, Gamble MV, Tellez-Plaza M, Umans JG, Best LG, Yracheta J, Gribble MO, Cardenas A, Francesconi KA, Goessler W, Tang WY, Fallin MD, Cole SA, Navas-Acien A. Locus-Specific Differential DNA Methylation and Urinary Arsenic: An Epigenome-Wide Association Study in Blood among Adults with Low-to-Moderate Arsenic Exposure. Environ Health Perspect 2020; 128:67015. [PMID: 32603190 PMCID: PMC7534587 DOI: 10.1289/ehp6263] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
BACKGROUND Chronic exposure to arsenic (As), a human toxicant and carcinogen, remains a global public health problem. Health risks persist after As exposure has ended, suggesting epigenetic dysregulation as a mechanistic link between exposure and health outcomes. OBJECTIVES We investigated the association between total urinary As and locus-specific DNA methylation in the Strong Heart Study, a cohort of American Indian adults with low-to-moderate As exposure [total urinary As, mean (±SD) μg/g creatinine: 11.7 (10.6)]. METHODS DNA methylation was measured in 2,325 participants using the Illumina MethylationEPIC array. We implemented linear models to test differentially methylated positions (DMPs) and the DMRcate method to identify regions (DMRs) and conducted gene ontology enrichment analysis. Models were adjusted for estimated cell type proportions, age, sex, body mass index, smoking, education, estimated glomerular filtration rate, and study center. Arsenic was measured in urine as the sum of inorganic and methylated species. RESULTS In adjusted models, methylation at 20 CpGs was associated with urinary As after false discovery rate (FDR) correction (FDR< 0.05). After Bonferroni correction, 5 CpGs remained associated with total urinary As (pBonferroni<0.05), located in SLC7A11, ANKS3, LINGO3, CSNK1D, ADAMTSL4. We identified one DMR on chromosome 11 (chr11:2,322,050-2,323,247), annotated to C11orf2; TSPAN32 genes. DISCUSSION This is one of the first epigenome-wide association studies to investigate As exposure and locus-specific DNA methylation using the Illumina MethylationEPIC array and the largest epigenome-wide study of As exposure. The top DMP was located in SLC7A11A, a gene involved in cystine/glutamate transport and the biosynthesis of glutathione, an antioxidant that may protect against As-induced oxidative stress. Additional DMPs were located in genes associated with tumor development and glucose metabolism. Further research is needed, including research in more diverse populations, to investigate whether As-related DNA methylation signatures are associated with gene expression or may serve as biomarkers of disease development. https://doi.org/10.1289/EHP6263.
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Affiliation(s)
- Anne K Bozack
- Department of Environmental Health Science, Columbia University, New York, New York, USA
| | - Arce Domingo-Relloso
- Department of Environmental Health Science, Columbia University, New York, New York, USA
- Department of Chronic Diseases Epidemiology, National Center for Epidemiology, Carlos III Health Institutes, Madrid, Spain
| | - Karin Haack
- Population Health Program, Texas Biomedical Research Institute, San Antonio, Texas, USA
| | - Mary V Gamble
- Department of Environmental Health Science, Columbia University, New York, New York, USA
| | - Maria Tellez-Plaza
- Department of Chronic Diseases Epidemiology, National Center for Epidemiology, Carlos III Health Institutes, Madrid, Spain
- Department of Environmental Health Sciences, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA
| | - Jason G Umans
- MedStar Health Research Institute, Washington, District of Columbia, USA
- Center for Clinical and Translational Sciences, Georgetown/Howard Universities, Washington, DC, USA
| | - Lyle G Best
- Missouri Breaks Industries Research, Eagle Butte, South Dakota, USA
| | - Joseph Yracheta
- Missouri Breaks Industries Research, Eagle Butte, South Dakota, USA
| | - Matthew O Gribble
- Department of Environmental Health, Emory University Rollins School of Public Health, Atlanta, Georgia, USA
| | - Andres Cardenas
- Division of Environmental Health Sciences, School of Public Health, University of California, Berkley, California, USA
| | | | | | - Wan-Yee Tang
- Department of Environmental Health Sciences, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA
| | - M Daniele Fallin
- Department of Mental Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA
- Wendy Klag Center for Autism and Developmental Disabilities, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA
| | - Shelley A Cole
- Population Health Program, Texas Biomedical Research Institute, San Antonio, Texas, USA
| | - Ana Navas-Acien
- Department of Environmental Health Science, Columbia University, New York, New York, USA
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Ebert F, Ziemann V, Wandt VK, Witt B, Müller SM, Guttenberger N, Bankoglu EE, Stopper H, Raber G, Francesconi KA, Schwerdtle T. Cellular toxicological characterization of a thioxolated arsenic-containing hydrocarbon. J Trace Elem Med Biol 2020; 61:126563. [PMID: 32531707 DOI: 10.1016/j.jtemb.2020.126563] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/27/2020] [Revised: 05/15/2020] [Accepted: 05/20/2020] [Indexed: 01/08/2023]
Abstract
Arsenolipids, especially arsenic-containing hydrocarbons (AsHC), are an emerging class of seafood originating contaminants. Here we toxicologically characterize a recently identified oxo-AsHC 332 metabolite, thioxo-AsHC 348 in cultured human liver (HepG2) cells. Compared to results of previous studies of the parent compound oxo-AsHC 332, thioxo-AsHC 348 substantially affected cell viability in the same concentration range but exerted about 10-fold lower cellular bioavailability. Similar to oxo-AsHC 332, thioxo-AsHC 348 did not substantially induce oxidative stress nor DNA damage. Moreover, in contrast to oxo-AsHC 332 mitochondria seem not to be a primary subcellular toxicity target for thioxo-AsHC 348. This study indicates that thioxo-AsHC 348 is at least as toxic as its parent compound oxo-AsHC 332 but very likely acts via a different mode of toxic action, which still needs to be identified.
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Affiliation(s)
- Franziska Ebert
- University of Potsdam, Institute of Nutritional Science, Department of Food Chemistry, Arthur-Scheunert-Allee 114-116, Nuthetal, Germany.
| | - Vanessa Ziemann
- University of Potsdam, Institute of Nutritional Science, Department of Food Chemistry, Arthur-Scheunert-Allee 114-116, Nuthetal, Germany.
| | - Viktoria Klara Wandt
- University of Potsdam, Institute of Nutritional Science, Department of Food Chemistry, Arthur-Scheunert-Allee 114-116, Nuthetal, Germany.
| | - Barbara Witt
- University of Potsdam, Institute of Nutritional Science, Department of Food Chemistry, Arthur-Scheunert-Allee 114-116, Nuthetal, Germany.
| | - Sandra Marie Müller
- University of Potsdam, Institute of Nutritional Science, Department of Food Chemistry, Arthur-Scheunert-Allee 114-116, Nuthetal, Germany
| | - Nikolaus Guttenberger
- University of Graz, Institute of Chemistry, NAWI Graz, Universitaetsplatz 1, Graz, Austria
| | - Ezgi Eyluel Bankoglu
- University of Würzburg, Institute of Pharmacology and Toxicology, Department of Toxicology, Versbacher Str. 9, Würzburg, Germany.
| | - Helga Stopper
- University of Würzburg, Institute of Pharmacology and Toxicology, Department of Toxicology, Versbacher Str. 9, Würzburg, Germany.
| | - Georg Raber
- University of Graz, Institute of Chemistry, NAWI Graz, Universitaetsplatz 1, Graz, Austria.
| | - Kevin A Francesconi
- University of Graz, Institute of Chemistry, NAWI Graz, Universitaetsplatz 1, Graz, Austria.
| | - Tanja Schwerdtle
- University of Potsdam, Institute of Nutritional Science, Department of Food Chemistry, Arthur-Scheunert-Allee 114-116, Nuthetal, Germany.
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Xiong C, Stiboller M, Glabonjat RA, Rieger J, Paton L, Francesconi KA. Transport of arsenolipids to the milk of a nursing mother after consuming salmon fish. J Trace Elem Med Biol 2020; 61:126502. [PMID: 32344278 DOI: 10.1016/j.jtemb.2020.126502] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/08/2020] [Revised: 03/04/2020] [Accepted: 03/23/2020] [Indexed: 01/17/2023]
Abstract
OBJECTIVE We address two questions relevant to infants' exposure to potentially toxic arsenolipids, namely, are the arsenolipids naturally present in fish transported intact to a mother's milk, and what is the efficiency of this transport. METHODS We investigated the transport of arsenolipids and other arsenic species present in fish to mother's milk by analyzing the milk of a single nursing mother at 15 sampling times over a 3-day period after she had consumed a meal of salmon. Total arsenic values were obtained by elemental mass spectrometry, and arsenic species were measured by HPLC coupled to both elemental and molecular mass spectrometry. RESULTS Total arsenic increased from background levels (0.1 μg As kg-1) to a peak value of 1.72 μg As kg-1 eight hours after the fish meal. The pattern for arsenolipids was similar to that of total arsenic, increasing from undetectable background levels (< 0.01 μg As kg-1) to a peak after eight hours of 0.45 μg As kg-1. Most of the remaining total arsenic in the milk was accounted for by arsenobetaine. The major arsenolipids in the salmon were arsenic hydrocarbons (AsHCs; 55 % of total arsenolipids), and these compounds were also the dominant arsenolipids in the milk where they contributed over 90 % of the total arsenolipids. CONCLUSIONS Our study has shown that ca 2-3 % of arsenic hydrocarbons, natural constituents of fish, can be directly transferred unchanged to the milk of a nursing mother. In view of the potential neurotoxicity of AsHCs, the effects of these compounds on the brain developmental stage of infants need to be investigated.
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Affiliation(s)
- Chan Xiong
- Institute of Chemistry, NAWI Graz, University of Graz, 8010 Graz, Austria.
| | - Michael Stiboller
- Institute of Nutritional Sciences, Food Chemistry, University of Potsdam, 14558 Nuthetal, Germany
| | - Ronald A Glabonjat
- Institute of Chemistry, NAWI Graz, University of Graz, 8010 Graz, Austria
| | - Jaqueline Rieger
- Institute of Chemistry, NAWI Graz, University of Graz, 8010 Graz, Austria
| | - Lhiam Paton
- TESLA (Trace Element Speciation Laboratory), Department of Chemistry, University of Aberdeen, Aberdeen AB24 3UE, Scotland, UK
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Tinkelman NE, Spratlen MJ, Domingo-Relloso A, Tellez-Plaza M, Grau-Perez M, Francesconi KA, Goessler W, Howard BV, MacCluer J, North KE, Umans JG, Factor-Litvak P, Cole SA, Navas-Acien A. Associations of maternal arsenic exposure with adult fasting glucose and insulin resistance in the Strong Heart Study and Strong Heart Family Study. Environ Int 2020; 137:105531. [PMID: 32059145 PMCID: PMC7521956 DOI: 10.1016/j.envint.2020.105531] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [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] [Received: 07/24/2019] [Revised: 01/19/2020] [Accepted: 01/25/2020] [Indexed: 05/06/2023]
Abstract
Experimental and prospective epidemiologic evidence suggest that arsenic exposure has diabetogenic effects. However, little is known about how family exposure to arsenic may affect risk for type 2 diabetes (T2D)-related outcomes in adulthood. We evaluated the association of both maternal and offspring arsenic exposure with fasting glucose and incident T2D in 466 participants of the Strong Heart Family Study. Total arsenic (ΣAs) exposure was calculated as the sum of inorganic arsenic (iAs) and methylated (MMA, DMA) arsenic species in maternal and offspring baseline urine. Median maternal ΣAs at baseline (1989-91) was 7.6 µg/g creatinine, while median offspring ΣAs at baseline (2001-03) was 4.5 µg/g creatinine. Median offspring glucose in 2006-2009 was 94 mg/dL, and 79 participants developed T2D. The fully adjusted mean difference (95% CI) for offspring glucose was 4.40 (-3.46, 12.26) mg/dL per IQR increase in maternal ΣAs vs. 2.72 (-4.91 to 10.34) mg/dL per IQR increase in offspring ΣAs. The fully adjusted odds ratio (95%CI) of incident T2D was 1.35 (1.07, 1.69) for an IQR increase in maternal ΣAs and 1.15 (0.92, 1.43) for offspring ΣAs. The association of maternal ΣAs with T2D outcomes were attenuated with adjustment for offspring adiposity markers. Familial exposure to arsenic, as measured in mothers 15-20 years before offspring follow-up, is associated with increased odds of offspring T2D. More research is needed to confirm findings and better understand the importance of family exposure to arsenic in adult-onset diabetes.
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Affiliation(s)
- Naomi E Tinkelman
- Department of Epidemiology, Columbia University Mailman School of Public Health, New York, NY, USA; Department of Environmental Health Sciences, Columbia University Mailman School of Public Health, New York, NY, USA.
| | - Miranda Jones Spratlen
- Department of Environmental Health Sciences, Columbia University Mailman School of Public Health, New York, NY, USA
| | - Arce Domingo-Relloso
- Department of Environmental Health Sciences, Columbia University Mailman School of Public Health, New York, NY, USA
| | - Maria Tellez-Plaza
- National Center of Epidemiology, Institute of Health Carlos III, Madrid, Spain
| | - Maria Grau-Perez
- Department of Environmental Health Sciences, Columbia University Mailman School of Public Health, New York, NY, USA
| | | | | | - Barbara V Howard
- Georgetown-Howard Universities Center for Clinical and Translational Science, Washington, DC, USA; MedStar Health Research Institute, Hyattsville, MD, USA
| | - Jean MacCluer
- Population Health Program, Texas Biomedical Research Institute, San Antonio, TX, USA
| | - Kari E North
- Department of Epidemiology, University of North Carolina Gillings School of Public Health, Chapel Hill, NC, USA
| | - Jason G Umans
- Georgetown-Howard Universities Center for Clinical and Translational Science, Washington, DC, USA; MedStar Health Research Institute, Hyattsville, MD, USA
| | - Pam Factor-Litvak
- Department of Epidemiology, Columbia University Mailman School of Public Health, New York, NY, USA
| | - Shelley A Cole
- Department of Epidemiology, University of North Carolina Gillings School of Public Health, Chapel Hill, NC, USA
| | - Ana Navas-Acien
- Department of Environmental Health Sciences, Columbia University Mailman School of Public Health, New York, NY, USA.
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9
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Powers M, Sanchez TR, Grau-Perez M, Yeh F, Francesconi KA, Goessler W, George CM, Heaney C, Best LG, Umans JG, Brown RH, Navas-Acien A. Correction to: Low-moderate arsenic exposure and respiratory health in American Indian communities in the Strong Heart Study. Environ Health 2020; 19:24. [PMID: 32101143 PMCID: PMC7043028 DOI: 10.1186/s12940-020-00576-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The original version of this article [1], published on 28 November 2019, contained incorrect title. In this Correction the affected part of the article is shown.
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Affiliation(s)
- Martha Powers
- Department of Environmental Health and Engineering, Johns Hopkins Bloomberg School of Public Health, 615 N. Wolfe St, Baltimore, MD, USA.
| | - Tiffany R Sanchez
- Department of Environmental Health Sciences, Columbia University Mailman School of Public Health, New York, NY, USA
| | - Maria Grau-Perez
- Department of Environmental Health and Engineering, Johns Hopkins Bloomberg School of Public Health, 615 N. Wolfe St, Baltimore, MD, USA
| | - Fawn Yeh
- Center for American Indian Health Research, University of Oklahoma Health Sciences Center, College of Public Health, Oklahoma City, OK, USA
| | | | - Walter Goessler
- Institute of Chemistry - Analytical Chemistry, Graz, Austria
| | - Christine M George
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - Christopher Heaney
- Department of Environmental Health and Engineering, Johns Hopkins Bloomberg School of Public Health, 615 N. Wolfe St, Baltimore, MD, USA
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - Lyle G Best
- Missouri Breaks Industries Research, Inc, Eagle Butte, SD, USA
| | - Jason G Umans
- MedStar Health Research Institute, Hyattsville, MD, USA, Georgetown-Howard Universities Center for Clinical and Translational Science, Washington, DC, USA
| | - Robert H Brown
- Department of Environmental Health and Engineering, Johns Hopkins Bloomberg School of Public Health, 615 N. Wolfe St, Baltimore, MD, USA
- Department of Anesthesiology and Critical Care Medicine, Johns Hopkins School of Medicine, Baltimore, MD, USA
| | - Ana Navas-Acien
- Department of Environmental Health and Engineering, Johns Hopkins Bloomberg School of Public Health, 615 N. Wolfe St, Baltimore, MD, USA
- Department of Environmental Health Sciences, Columbia University Mailman School of Public Health, New York, NY, USA
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
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10
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Sobel MH, Sanchez TR, Jones MR, Kaufman JD, Francesconi KA, Blaha MJ, Vaidya D, Shimbo D, Gossler W, Gamble MV, Genkinger JM, Navas‐Acien A. Rice Intake, Arsenic Exposure, and Subclinical Cardiovascular Disease Among US Adults in MESA. J Am Heart Assoc 2020; 9:e015658. [PMID: 32067593 PMCID: PMC7070216 DOI: 10.1161/jaha.119.015658] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/17/2019] [Accepted: 01/02/2020] [Indexed: 12/11/2022]
Abstract
Background Arsenic-related cardiovascular effects at exposure levels below the US Environmental Protection Agency's standard of 10 μg/L are unclear. For these populations, food, especially rice, is a major source of exposure. We investigated associations of rice intake, a marker of arsenic exposure, with subclinical cardiovascular disease (CVD) markers in a multiethnic population. Methods and Results Between 2000 and 2002, MESA (Multi-Ethnic Study of Atherosclerosis) enrolled 6814 adults without clinical CVD. We included 5050 participants with baseline data on rice intake and markers of 3 CVD domains: inflammation (hsCRP [high-sensitivity C-reactive protein], interleukin-6, and fibrinogen), vascular function (aortic distensibility, carotid distensibility, and brachial flow-mediated dilation), and subclinical atherosclerosis at 3 vascular sites (carotid intima-media thickness, coronary artery calcification, and ankle-brachial index). We also evaluated endothelial-related biomarkers previously associated with arsenic. Rice intake was assessed by food frequency questionnaire. Urinary arsenic was measured in 310 participants. A total of 13% of participants consumed ≥1 serving of rice/day. Compared with individuals consuming <1 serving of rice/week, ≥1 serving of rice/day was not associated with subclinical markers after demographic, lifestyle, and CVD risk factor adjustment (eg, geometric mean ratio [95% CI] for hsCRP, 0.98 [0.86-1.11]; aortic distensibility, 0.99 [0.91-1.07]; and carotid intima-media thickness, 0.98 [0.91-1.06]). Associations with urinary arsenic were similar to those for rice intake. Conclusions Rice intake was not associated with subclinical CVD markers in a multiethnic US population. Research using urinary arsenic is needed to assess potential CVD effects of low-level arsenic exposure. Understanding the role of low-level arsenic as it relates to subclinical CVD may contribute to CVD prevention and control.
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Affiliation(s)
- Marisa H. Sobel
- Department of Environmental Health ScienceColumbia UniversityNew YorkNY
| | | | - Miranda R. Jones
- Department of EpidemiologyJohns Hopkins University Bloomberg School of Public HealthBaltimoreMD
| | | | | | | | | | | | | | - Mary V. Gamble
- Department of Environmental Health ScienceColumbia UniversityNew YorkNY
| | | | - Ana Navas‐Acien
- Department of Environmental Health ScienceColumbia UniversityNew YorkNY
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11
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Al Amin MH, Xiong C, Francesconi KA, Itahashi Y, Yoneda M, Yoshinaga J. Variation in arsenolipid concentrations in seafood consumed in Japan. Chemosphere 2020; 239:124781. [PMID: 31514006 DOI: 10.1016/j.chemosphere.2019.124781] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [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] [Received: 01/06/2019] [Revised: 08/06/2019] [Accepted: 09/04/2019] [Indexed: 05/21/2023]
Abstract
Variation in arsenolipid concentrations was assessed in 18 seafood samples including fish, shellfish, and crustaceans purchased in Japan. Analyses were performed by high performance liquid chromatography-inductively coupled plasma mass spectrometry/electrospray ionization tandem mass spectrometry. Stable isotope ratios for nitrogen and carbon were also measured in the samples for obtaining trophic level information of the species. Arsenic-containing hydrocarbons (AsHCs) and arsenic-containing fatty acids (AsFAs) were detected in the seafood samples; the toxic AsHCs were found in all of the seafood samples with large variation in the concentrations (83 ± 73 ng As/g fw, coefficient of variation = 88%). Our previous point estimate of health risk of AsHCs intake via seafood consumption in Japan, based on average AsHC concentration in seafood, suggested insignificant risk, and the present study supports our previous estimate. AsHC concentrations significantly correlated with lipid content of the seafood samples (r = 0.67, p < 0.01), a result expected because of the fat solubility of the compounds. The AsHCs concentrations, however, were not significantly correlated with nitrogen stable isotope ratios suggesting that AsHCs do not biomagnify. The source of the observed large variation in AsHC concentrations will be the subject of further investigation.
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Affiliation(s)
- Md Hasan Al Amin
- Graduate School of Frontier Sciences, The University of Tokyo, Kashiwanoha 5-1-5, Kashiwa, Chiba, 277-8563, Japan; Faculty of Life Sciences, Toyo University, Izumino 1-1-1, Itakura, Ora, Gunma, 374-0193, Japan
| | - Chan Xiong
- Institute of Chemistry-NAWI Graz, University of Graz, Universitaetsplatz 1, 8010, Graz, Austria
| | - Kevin A Francesconi
- Institute of Chemistry-NAWI Graz, University of Graz, Universitaetsplatz 1, 8010, Graz, Austria
| | - Yu Itahashi
- The University Museum, The University of Tokyo, Hongo 7-3-1, Bunkyo, Tokyo, Japan
| | - Minoru Yoneda
- The University Museum, The University of Tokyo, Hongo 7-3-1, Bunkyo, Tokyo, Japan
| | - Jun Yoshinaga
- Faculty of Life Sciences, Toyo University, Izumino 1-1-1, Itakura, Ora, Gunma, 374-0193, Japan.
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12
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Powers M, Sanchez TR, Grau-Perez M, Yeh F, Francesconi KA, Goessler W, George CM, Heaney C, Best LG, Umans JG, Brown RH, Navas-Acien A. Low-moderate arsenic exposure and respiratory in American Indian communities in the Strong Heart Study. Environ Health 2019; 18:104. [PMID: 31779614 PMCID: PMC6883619 DOI: 10.1186/s12940-019-0539-6] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2019] [Accepted: 10/28/2019] [Indexed: 05/18/2023]
Abstract
BACKGROUND Arsenic exposure through drinking water is an established lung carcinogen. Evidence on non-malignant lung outcomes is less conclusive and suggests arsenic is associated with lower lung function. Studies examining low-moderate arsenic (< 50 μg/L), the level relevant for most populations, are limited. We evaluated the association of arsenic exposure with respiratory health in American Indians from the Northern Plains, the Southern Plains and the Southwest United States, communities with environmental exposure to inorganic arsenic through drinking water. METHODS The Strong Heart Study is a prospective study of American Indian adults. This analysis used urinary arsenic measurements at baseline (1989-1991) and spirometry at Visit 2 (1993-1995) from 2132 participants to evaluate associations of arsenic exposure with airflow obstruction, restrictive pattern, self-reported respiratory disease, and symptoms. RESULTS Airflow obstruction was present in 21.5% and restrictive pattern was present in 14.4%. The odds ratio (95% confidence interval) for obstruction and restrictive patterns, based on the fixed ratio definition, comparing the 75th to 25th percentile of arsenic, was 1.17 (0.99, 1.38) and 1.27 (1.01, 1.60), respectively, after adjustments, and 1.28 (1.02, 1.60) and 1.33 (0.90, 1.50), respectively, based on the lower limit of normal definition. Arsenic was associated with lower percent predicted FEV1 and FVC, self-reported emphysema and stopping for breath. CONCLUSION Low-moderate arsenic exposure was positively associated with restrictive pattern, airflow obstruction, lower lung function, self-reported emphysema and stopping for breath, independent of smoking and other lung disease risk factors. Findings suggest that low-moderate arsenic exposure may contribute to restrictive lung disease.
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Affiliation(s)
- Martha Powers
- Department of Environmental Health and Engineering, Johns Hopkins Bloomberg School of Public Health, 615 N. Wolfe St, Baltimore, MD, USA.
| | - Tiffany R Sanchez
- Department of Environmental Health Sciences, Columbia University Mailman School of Public Health, New York, NY, USA
| | - Maria Grau-Perez
- Department of Environmental Health and Engineering, Johns Hopkins Bloomberg School of Public Health, 615 N. Wolfe St, Baltimore, MD, USA
| | - Fawn Yeh
- Center for American Indian Health Research, University of Oklahoma Health Sciences Center, College of Public Health, Oklahoma City, OK, USA
| | | | - Walter Goessler
- Institute of Chemistry - Analytical Chemistry, Graz, Austria
| | - Christine M George
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - Christopher Heaney
- Department of Environmental Health and Engineering, Johns Hopkins Bloomberg School of Public Health, 615 N. Wolfe St, Baltimore, MD, USA
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - Lyle G Best
- Missouri Breaks Industries Research, Inc., Eagle Butte, SD, USA
| | - Jason G Umans
- MedStar Health Research Institute, Hyattsville, MD, USA, Georgetown-Howard Universities Center for Clinical and Translational Science, Washington, DC, USA
| | - Robert H Brown
- Department of Environmental Health and Engineering, Johns Hopkins Bloomberg School of Public Health, 615 N. Wolfe St, Baltimore, MD, USA
- Department of Anesthesiology and Critical Care Medicine, Johns Hopkins School of Medicine, Baltimore, MD, USA
| | - Ana Navas-Acien
- Department of Environmental Health and Engineering, Johns Hopkins Bloomberg School of Public Health, 615 N. Wolfe St, Baltimore, MD, USA
- Department of Environmental Health Sciences, Columbia University Mailman School of Public Health, New York, NY, USA
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
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13
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Nigra AE, Olmedo P, Grau-Perez M, O'Leary R, O'Leary M, Fretts AM, Umans JG, Best LG, Francesconi KA, Goessler W, Cole SA, Navas-Acien A. Dietary determinants of inorganic arsenic exposure in the Strong Heart Family Study. Environ Res 2019; 177:108616. [PMID: 31442790 PMCID: PMC6748659 DOI: 10.1016/j.envres.2019.108616] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [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] [Received: 05/02/2019] [Revised: 07/08/2019] [Accepted: 07/26/2019] [Indexed: 05/19/2023]
Abstract
BACKGROUND Chronic exposure to inorganic arsenic (iAs) in the US occurs mainly through drinking water and diet. Although American Indian (AI) populations have elevated urinary arsenic concentrations compared to the general US population, dietary sources of arsenic exposure in AI populations are not well characterized. METHODS We evaluated food frequency questionnaires to determine the major dietary sources of urinary arsenic concentrations (measured as the sum of arsenite, arsenate, monomethylarsonate, and dimethylarsinate, ΣAs) for 1727 AI participants in the Strong Heart Family Study (SHFS). We compared geometric mean ratios (GMRs) of urinary ΣAs for an interquartile range (IQR) increase in reported food group consumption. Exploratory analyses were stratified by gender and study center. RESULTS In fully adjusted generalized estimating equation models, the percent increase (95% confidence interval) of urinary ΣAs per increase in reported food consumption corresponding to the IQR was 13% (5%, 21%) for organ meat, 8% (4%, 13%) for rice, 7% (2%, 13%) for processed meat, and 4% (1%, 7%) for non-alcoholic drinks. In analyses stratified by study center, the association with organ meat was only observed in North/South Dakota. Consumption of red meat [percent increase -7% (-11%, -3%)] and fries and chips [-6% (-10%, -2%)] was inversely associated with urinary ΣAs. CONCLUSIONS Organ meat, processed meat, rice, and non-alcoholic drinks contribute to ΣAs exposure in the SHFS population. Organ meat is a unique source of ΣAs exposure for North and South Dakota participants and may reflect local food consumption. Further studies should comprehensively evaluate drinking water arsenic in SHFS communities and determine the relative contribution of diet and drinking water to total arsenic exposure.
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Affiliation(s)
- Anne E Nigra
- Department of Environmental Health Sciences, Columbia University Mailman School of Public Health, New York, NY, USA.
| | - Pablo Olmedo
- Department of Legal Medicine and Toxicology, School of Medicine, University of Granada, Granada, Spain
| | - Maria Grau-Perez
- Area of Cardiometabolic and Renal Risk, Biomedical Research Institute Hospital Clinic of Valencia, Valencia, Spain
| | - Rae O'Leary
- Missouri Breaks Industries Research Inc, Eagle Butte, SD, USA
| | - Marcia O'Leary
- Missouri Breaks Industries Research Inc, Eagle Butte, SD, USA
| | - Amanda M Fretts
- Department of Epidemiology, University of Washington, Seattle, WA, USA
| | - Jason G Umans
- MedStar Health Research Institute; Washington, DC, USA
| | - Lyle G Best
- Missouri Breaks Industries Research Inc, Eagle Butte, SD, USA
| | | | | | - Shelley A Cole
- Texas Biomedical Research Institute, Hyattsville, MD, USA
| | - Ana Navas-Acien
- Department of Environmental Health Sciences, Columbia University Mailman School of Public Health, New York, NY, USA
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14
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Sanchez TR, Oelsner EC, Lederer DJ, Lo Cascio CM, Jones MR, Grau-Perez M, Francesconi KA, Goessler W, Perzanowski MS, Barr RG, Navas-Acien A. Rice Consumption and Subclinical Lung Disease in US Adults: Observational Evidence From the Multi-Ethnic Study of Atherosclerosis. Am J Epidemiol 2019; 188:1655-1665. [PMID: 31145426 DOI: 10.1093/aje/kwz137] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2019] [Revised: 05/22/2019] [Accepted: 05/24/2019] [Indexed: 01/17/2023] Open
Abstract
Rice accumulates arsenic, an established lung toxicant. Little is known about the association of rice consumption with arsenic-related health effects, particularly interstitial lung disease. Between 2000 and 2002, 6,814 white, black, Hispanic, and Chinese adults from 6 US cities were enrolled in the Multi-Ethnic Study of Atherosclerosis. We included 2,250 participants who had spirometry data, 2,557 with full-lung computed tomography (CT) scans, and 5,710 with cardiac CT scans. Rice consumption and 310 participants with urinary arsenic were assessed at baseline. Spirometry and full-lung CT-derived measures of total lung capacity and high attenuation area (HAA), and interstitial lung abnormalities were measured at examination 5. Cardiac CT-derived HAA was measured at 1-3 visits. Twelve percent of participants reported eating at least 1 serving of rice daily. Comparing data between that group with those who ate less than 1 serving weekly, the mean difference for forced vital capacity was -102 (95% confidence interval (CI): -198, -7) mL, and for forced expiratory volume in 1 second was -90 (95% CI: -170, -11) mL after adjustment for demographics, anthropometrics, dietary factors, and smoking. The cross-sectional adjusted percent difference for total lung capacity was -1.33% (95% CI: -4.29, 1.72) and for cardiac-based HAA was 3.66% (95% CI: 1.22, 6.15). Sensitivity analyses for urinary arsenic were consistent with rice findings. Daily rice consumption was associated with reduced lung function and greater cardiac-based HAA.
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15
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Jones MR, Tellez-Plaza M, Vaidya D, Grau-Perez M, Post WS, Kaufman JD, Guallar E, Francesconi KA, Goessler W, Nachman KE, Sanchez TR, Navas-Acien A. Ethnic, geographic and dietary differences in arsenic exposure in the multi-ethnic study of atherosclerosis (MESA). J Expo Sci Environ Epidemiol 2019; 29:310-322. [PMID: 29795237 PMCID: PMC6252166 DOI: 10.1038/s41370-018-0042-0] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [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] [Received: 05/02/2017] [Revised: 10/03/2017] [Accepted: 01/27/2018] [Indexed: 05/18/2023]
Abstract
Differences in residential location as well as race/ethnicity and dietary habits may result in differences in inorganic arsenic (iAs) exposure. We investigated the association of exposure to iAs with race/ethnicity, geography, and dietary intake in a random sample of 310 White, Black, Hispanic, and Chinese adults in the Multi-Ethnic Study of Atherosclerosis from 6 US cities with inorganic and methylated arsenic (ΣAs) measured in urine. Dietary intake was assessed by food-frequency questionnaire. Chinese and Hispanic race/ethnicity was associated with 82% (95% CI: 46%, 126%) and 37% (95% CI: 10%, 70%) higher urine arsenic concentrations, respectively, compared to White participants. No differences were observed for Black participants compared to Whites. Urine arsenic concentrations were higher for participants in Los Angeles, Chicago, and New York compared to other sites. Participants that ate rice ≥2 times/week had 31% higher urine arsenic compared to those that rarely/never consumed rice. Participants that drank wine ≥2 times/week had 23% higher urine arsenic compared to rare/never wine drinkers. Intake of poultry or non-rice grains was not associated with urinary arsenic concentrations. At the low-moderate levels typical of the US population, exposure to iAs differed by race/ethnicity, geographic location, and frequency of rice and wine intake.
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Affiliation(s)
- Miranda R Jones
- Department of Epidemiology, Johns Hopkins University Bloomberg School of Public Health, Baltimore, MD, USA.
- Department of Oncology, Johns Hopkins School of Medicine, Baltimore, MD, USA.
| | - Maria Tellez-Plaza
- Department of Environmental Health Sciences, Johns Hopkins University Bloomberg School of Public Health, Baltimore, MD, USA
- Institute for Biomedical Research Hospital Clinico de Valencia-INCLIVA, Valencia, Spain
| | - Dhananjay Vaidya
- Department of Medicine, Johns Hopkins School of Medicine, Baltimore, MD, USA
| | - Maria Grau-Perez
- Department of Environmental Health Sciences, Johns Hopkins University Bloomberg School of Public Health, Baltimore, MD, USA
- Department of Environmental Health Sciences, Columbia University, New York, NY, USA
| | - Wendy S Post
- Department of Epidemiology, Johns Hopkins University Bloomberg School of Public Health, Baltimore, MD, USA
- Department of Medicine, Johns Hopkins School of Medicine, Baltimore, MD, USA
- Welch Center for Prevention, Epidemiology and Clinical Research, Johns Hopkins Medical Institutions, Baltimore, MD, USA
| | - Joel D Kaufman
- Department of Environmental and Occupational Health Sciences,School of Public Health, University of Washington, Seattle, WA, USA
| | - Eliseo Guallar
- Department of Epidemiology, Johns Hopkins University Bloomberg School of Public Health, Baltimore, MD, USA
- Department of Medicine, Johns Hopkins School of Medicine, Baltimore, MD, USA
- Welch Center for Prevention, Epidemiology and Clinical Research, Johns Hopkins Medical Institutions, Baltimore, MD, USA
| | | | | | - Keeve E Nachman
- Department of Environmental Health Sciences, Johns Hopkins University Bloomberg School of Public Health, Baltimore, MD, USA
| | - Tiffany R Sanchez
- Department of Environmental Health Sciences, Columbia University, New York, NY, USA
| | - Ana Navas-Acien
- Department of Epidemiology, Johns Hopkins University Bloomberg School of Public Health, Baltimore, MD, USA
- Department of Environmental Health Sciences, Johns Hopkins University Bloomberg School of Public Health, Baltimore, MD, USA
- Department of Environmental Health Sciences, Columbia University, New York, NY, USA
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16
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Grau-Perez M, Zhao J, Pierce B, Francesconi KA, Goessler W, Zhu Y, An Q, Umans J, Best L, Cole SA, Navas-Acien A, Tellez-Plaza M. Urinary metals and leukocyte telomere length in American Indian communities: The Strong Heart and the Strong Heart Family Study. Environ Pollut 2019; 246:311-318. [PMID: 30557805 PMCID: PMC6363843 DOI: 10.1016/j.envpol.2018.12.010] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [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] [Received: 06/19/2018] [Revised: 12/02/2018] [Accepted: 12/04/2018] [Indexed: 05/03/2023]
Abstract
INTRODUCTION While several mechanisms may explain metal-related health effects, the exact cellular processes are not fully understood. We evaluated the association between leukocyte telomere length (LTL) and urine arsenic (ΣAs), cadmium (Cd) and tungsten (W) exposure in the Strong Heart Study (SHS, N = 1702) and in the Strong Heart Family Study (SHFS, N = 1793). METHODS Urine metal concentrations were measured using ICP-MS. Arsenic exposure was assessed as the sum of inorganic arsenic, monomethylarsonate and dimethylarsinate levels (ΣAs). LTL was measured by quantitative polymerase chain reaction. RESULTS In the SHS, median levels were 1.09 for LTL, and 8.8, 1.01 and 0.11 μg/g creatinine for ΣAs, Cd, and W, respectively. In the SHFS, median levels were 1.01 for LTL, and 4.3, 0.44, and 0.10 μg/g creatinine. Among SHS participants, increased urine ΣAs, Cd, and W was associated with shorter LTL. The adjusted geometric mean ratio (95% confidence interval) of LTL per an increase equal to the difference between the percentiles 90th and 10th in metal distributions was 0.85 (0.79, 0.92) for ΣAs, 0.91 (0.84, 1.00) for Cd and 0.93 (0.88, 0.98) for W. We observed no significant associations among SHFS participants. The findings also suggest that the association between arsenic and LTL might be differential depending on the exposure levels or age. CONCLUSIONS Additional research is needed to confirm the association between metal exposures and telomere length.
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Affiliation(s)
- Maria Grau-Perez
- Department of Environmental Health Sciences, Columbia University Mailman School of Public Health, New York, NY, USA; Area of Cardiometabolic and Renal Risk, Biomedical Research Institute Hospital Clinic of Valencia (INCLIVA), Valencia, Spain.
| | - Jinying Zhao
- Department of Epidemiology, College of Public Health and Health Professions, College of Medicine, University of Florida, Gainesville, FL, USA; Public Health Research, Division of Community Health Promotion, Florida Department of Health, Tallahassee, FL, USA
| | - Brandon Pierce
- Department of Public Health Sciences, University of Chicago, Chicago, IL, USA
| | | | | | - Yun Zhu
- Department of Epidemiology, College of Public Health and Health Professions, College of Medicine, University of Florida, Gainesville, FL, USA
| | - Qiang An
- Public Health Research, Division of Community Health Promotion, Florida Department of Health, Tallahassee, FL, USA
| | - Jason Umans
- Georgetown-Howard Universities Center for Clinical and Translational Science, Washington DC, USA; MedStar Health Research Institute, Hyattsville, MD, USA
| | - Lyle Best
- Department of Epidemiology, Missouri Breaks Industries Research Inc., Timber Lake, SD, USA
| | - Shelley A Cole
- Department of Genetics, Texas Biomedical Research Institute, San Antonio, TX, USA
| | - Ana Navas-Acien
- Department of Environmental Health Sciences, Columbia University Mailman School of Public Health, New York, NY, USA; Department of Environmental Health and Engineering, Johns Hopkins University, Baltimore, MD, USA.
| | - Maria Tellez-Plaza
- Area of Cardiometabolic and Renal Risk, Biomedical Research Institute Hospital Clinic of Valencia (INCLIVA), Valencia, Spain; Department of Environmental Health and Engineering, Johns Hopkins University, Baltimore, MD, USA; Department of Chronic Diseases Epidemiology, National Center for Epidemiology, Carlos III Health Institutes, Madrid, Spain
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17
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Nigra AE, Howard BV, Umans JG, Best L, Francesconi KA, Goessler W, Devereux R, Navas-Acien A. Urinary tungsten and incident cardiovascular disease in the Strong Heart Study: An interaction with urinary molybdenum. Environ Res 2018; 166:444-451. [PMID: 29940477 PMCID: PMC6347476 DOI: 10.1016/j.envres.2018.06.015] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [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] [Received: 01/31/2018] [Revised: 05/22/2018] [Accepted: 06/09/2018] [Indexed: 05/25/2023]
Abstract
BACKGROUND Tungsten (W) interferes with molybdenum (Mo) binding sites and has been associated with prevalent cardiovascular disease (CVD). We evaluated if (1) W exposure is prospectively associated with incident CVD and (2) the association between urinary W levels and incident CVD is modified by urinary Mo levels. METHODS We estimated multi-adjusted hazard ratios (HRs) for incident CVD outcomes by increasing W levels for 2726 American Indian participants in the Strong Heart Study with urinary metal levels measured at baseline (1989-1991) and CVD events ascertained through 2008. RESULTS Increasing levels of baseline urinary W were not associated with incident CVD. Fully-adjusted HRs (95% CIs) of incident CVD comparing a change in the IQR of W levels for those in the lowest and highest tertile of urinary Mo were 1.05 (0.90, 1.22) and 0.80 (0.70, 0.92), respectively (p-interaction = 0.02); for CVD mortality, the corresponding HRs were 1.05 (0.82, 1.33) and 0.73 (0.58, 0.93), respectively (p-interaction = 0.03). CONCLUSIONS The association between W and CVD incidence and mortality was positive although non-significant at lower urinary Mo levels and significant and inverse at higher urinary Mo levels. Although prior cross-sectional epidemiologic studies in the general US population found positive associations between urinary tungsten and prevalent cardiovascular disease, our prospective analysis in the Strong Heart Study indicates this association may be modified by molybdenum exposure.
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Affiliation(s)
- Anne E Nigra
- Columbia University Mailman School of Public Health, Department of Environmental Health Sciences, New York, NY, USA; Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA; Department of Environmental Health Sciences, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA.
| | - Barbara V Howard
- MedStar Health Research Institute, Washington, DC, USA; Georgetown/Howard Universities Center for Clinical and Translational Sciences, USA
| | - Jason G Umans
- MedStar Health Research Institute, Washington, DC, USA; Georgetown/Howard Universities Center for Clinical and Translational Sciences, USA
| | - Lyle Best
- Epidemiology Department, Missouri Breaks Industries Research Inc., Timber Lake, SD, USA
| | | | | | | | - Ana Navas-Acien
- Columbia University Mailman School of Public Health, Department of Environmental Health Sciences, New York, NY, USA; Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA; Department of Environmental Health Sciences, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
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18
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Müller SM, Ebert F, Bornhorst J, Galla HJ, Francesconi KA, Schwerdtle T. Arsenic-containing hydrocarbons disrupt a model in vitro blood-cerebrospinal fluid barrier. J Trace Elem Med Biol 2018; 49:171-177. [PMID: 29449109 DOI: 10.1016/j.jtemb.2018.01.020] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/15/2017] [Revised: 01/25/2018] [Accepted: 01/29/2018] [Indexed: 01/07/2023]
Abstract
Lipid-soluble arsenicals, so-called arsenolipids, have gained a lot of attention in the last few years because of their presence in many seafoods and reports showing substantial cytotoxicity emanating from arsenic-containing hydrocarbons (AsHCs), a prominent subgroup of the arsenolipids. More recent in vivo and in vitro studies indicate that some arsenolipids might have adverse effects on brain health. In the present study, we focused on the effects of selected arsenolipids and three representative metabolites on the blood-cerebrospinal fluid barrier (B-CSF-B), a brain-regulating interface. For this purpose, we incubated an in vitro model of the B-CSF-B composed of porcine choroid plexus epithelial cells (PCPECs) with three AsHCs, two arsenic-containing fatty acids (AsFAs) and three representative arsenolipid metabolites (dimethylarsinic acid, thio/oxo-dimethylpropanoic acid) to examine their cytotoxic potential and impact on barrier integrity. The toxic arsenic species arsenite was also tested in this way and served as a reference substance. While AsFAs and the metabolites showed no cytotoxic effects in the conducted assays, AsHCs showed a strong cytotoxicity, being up to 1.5-fold more cytotoxic than arsenite. Analysis of the in vitro B-CSF-B integrity showed a concentration-dependent disruption of the barrier within 72 h. The correlation with the decreased plasma membrane surface area (measured as capacitance) indicates cytotoxic effects. These findings suggest exposure to elevated levels of certain arsenolipids may have detrimental consequences for the central nervous system.
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Affiliation(s)
- S M Müller
- Institute of Nutritional Science, University of Potsdam, Arthur-Scheunert-Allee 114-116, 14558 Nuthetal, Germany; Heinrich-Stockmeyer Foundation, Parkstraße 44-46, 49214 Bad Rothenfelde, Germany
| | - F Ebert
- Institute of Nutritional Science, University of Potsdam, Arthur-Scheunert-Allee 114-116, 14558 Nuthetal, Germany
| | - J Bornhorst
- Institute of Nutritional Science, University of Potsdam, Arthur-Scheunert-Allee 114-116, 14558 Nuthetal, Germany
| | - H-J Galla
- Institute of Biochemistry, University of Münster, Wilhelm-Klemm-Str. 2, 48149 Münster, Germany
| | - K A Francesconi
- Institute of Chemistry, NAWI Graz, University of Graz, Universitätsplatz 1, 8010 Graz, Austria
| | - T Schwerdtle
- Institute of Nutritional Science, University of Potsdam, Arthur-Scheunert-Allee 114-116, 14558 Nuthetal, Germany.
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19
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Moon KA, Zhang Y, Guallar E, Francesconi KA, Goessler W, Umans JG, Best LG, Howard BV, Devereux RB, Okin PM, Navas-Acien A. Association of low-moderate urine arsenic and QT interval: Cross-sectional and longitudinal evidence from the Strong Heart Study. Environ Pollut 2018; 240:894-902. [PMID: 29793197 PMCID: PMC6339816 DOI: 10.1016/j.envpol.2018.04.129] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [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] [Received: 10/07/2017] [Revised: 04/17/2018] [Accepted: 04/27/2018] [Indexed: 05/06/2023]
Abstract
Epidemiologic studies suggest that chronic exposure to arsenic is related to cardiovascular disease (CVD), but the pathophysiological link remains uncertain. We evaluated the association of chronic low-moderate arsenic exposure and arsenic metabolism with baseline difference and annual change in ECG measures (QT interval, JT interval, PR interval, QRS duration, and QT dispersion) using linear mixed models in the Strong Heart Study main cohort (N = 1174, median age 55 years) and family study (N = 1695 diabetes-free, median age 36 years). At baseline, arsenic exposure was measured as the sum of inorganic and methylated species in urine (ΣAs) and arsenic metabolism was measured as the relative percentage of arsenic species. Median ΣAs and Bazett heart rate-corrected QT interval (QTc) were 8.6 μg/g creatinine and 424 ms in the main cohort and 4.3 μg/g and 414 ms in the family study, respectively. In the main cohort, a comparison of the highest to lowest ΣAs quartile (>14.4 vs. <5.2 μg/g creatinine) was associated with a 5.3 (95% CI: 1.2, 9.5) ms higher mean baseline QTc interval but no difference in annual change in QTc interval. In the family study, a comparison of the highest to lowest quartile (>7.1 vs. <2.9 μg/g creatinine) was associated with a 3.2 (95% CI: 0.6, 5.7) ms higher baseline QTc interval and a 0.6 (95% CI: 0.04, 1.2) ms larger annual increase in QTc interval. Associations with JTc interval were similar but stronger in magnitude compared to QTc interval. Arsenic exposure was largely not associated with PR interval, QRS duration or QT dispersion. Similar to arsenic exposure, a pattern of lower %MMA and higher %DMA was associated with longer baseline QTc interval in both cohorts and with a larger annual change in QTc interval in the family study. Chronic low-moderate arsenic exposure and arsenic metabolism were associated with prolonged ventricular repolarization.
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Affiliation(s)
- Katherine A Moon
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA.
| | - Yiyi Zhang
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - Eliseo Guallar
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - Kevin A Francesconi
- Institute for Chemistry-Analytical Chemistry, University of Graz, Graz, Austria
| | - Walter Goessler
- Institute for Chemistry-Analytical Chemistry, University of Graz, Graz, Austria
| | - Jason G Umans
- MedStar Health Research Institute, Hyattsville, MD, USA
| | - Lyle G Best
- Missouri Breaks Industries Research, Timber Lake, SD, USA
| | | | | | | | - Ana Navas-Acien
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA; Department of Environmental Health Sciences, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA; Department of Environmental Health Sciences, Columbia University Mailman School of Public Health, New York, NY, USA
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20
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Spratlen MJ, Grau-Perez M, Best LG, Yracheta J, Lazo M, Vaidya D, Balakrishnan P, Gamble MV, Francesconi KA, Goessler W, Cole SA, Umans JG, Howard BV, Navas-Acien A. The Association of Arsenic Exposure and Arsenic Metabolism With the Metabolic Syndrome and Its Individual Components: Prospective Evidence From the Strong Heart Family Study. Am J Epidemiol 2018; 187:1598-1612. [PMID: 29554222 DOI: 10.1093/aje/kwy048] [Citation(s) in RCA: 60] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2017] [Accepted: 02/28/2018] [Indexed: 12/12/2022] Open
Abstract
Inorganic arsenic exposure is ubiquitous, and both exposure and interindividual differences in its metabolism have been associated with cardiometabolic risk. However, the associations of arsenic exposure and arsenic metabolism with the metabolic syndrome (MetS) and its individual components are relatively unknown. We used Poisson regression with robust variance to evaluate the associations of baseline arsenic exposure (urinary arsenic levels) and metabolism (relative percentage of arsenic species over their sum) with incident MetS and its individual components (elevated waist circumference, elevated triglycerides, reduced high-density lipoprotein cholesterol, hypertension, and elevated fasting plasma glucose) in 1,047 participants from the Strong Heart Family Study, a prospective family-based cohort study in American Indian communities (baseline visits were held in 1998-1999 and 2001-2003, follow-up visits in 2001-2003 and 2006-2009). Over the course of follow-up, 32% of participants developed MetS. An interquartile-range increase in arsenic exposure was associated with a 1.19-fold (95% confidence interval: 1.01, 1.41) greater risk of elevated fasting plasma glucose concentration but not with other individual components of the MetS or MetS overall. Arsenic metabolism, specifically lower percentage of monomethylarsonic acid and higher percentage of dimethylarsinic acid, was associated with higher risk of overall MetS and elevated waist circumference but not with any other MetS component. These findings support the hypothesis that there are contrasting and independent associations of arsenic exposure and arsenic metabolism with metabolic outcomes which may contribute to overall diabetes risk.
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Affiliation(s)
- Miranda J Spratlen
- Department of Environmental Health and Engineering, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, Maryland
- Department of Environmental Health Sciences, Mailman School of Public Health, Columbia University, New York, New York
| | - Maria Grau-Perez
- Area of Cardiometabolic and Renal Risk, Clinical Research Foundation of Valencia, Valencia, Spain
- Department of Statistics and Operational Research, Faculty of Mathematics, University of Valencia, Valencia, Spain
| | - Lyle G Best
- Missouri Breaks Industries Research, Inc., Eagle Butte, South Dakota
| | - Joseph Yracheta
- Missouri Breaks Industries Research, Inc., Eagle Butte, South Dakota
| | - Mariana Lazo
- Department of Medicine, School of Medicine, Johns Hopkins University, Baltimore, Maryland
- Department of Epidemiology, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, Maryland
| | - Dhananjay Vaidya
- Department of Medicine, School of Medicine, Johns Hopkins University, Baltimore, Maryland
- Department of Epidemiology, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, Maryland
| | - Poojitha Balakrishnan
- Department of Environmental Health Sciences, Mailman School of Public Health, Columbia University, New York, New York
| | - Mary V Gamble
- Department of Environmental Health Sciences, Mailman School of Public Health, Columbia University, New York, New York
| | - Kevin A Francesconi
- Department of Analytical Chemistry, Institute of Chemistry, University of Graz, Graz, Austria
| | - Walter Goessler
- Department of Analytical Chemistry, Institute of Chemistry, University of Graz, Graz, Austria
| | | | - Jason G Umans
- MedStar Health Research Institute, Hyattsville, Maryland
- Department of Medicine, School of Medicine, Georgetown University, Washington, DC
| | - Barbara V Howard
- MedStar Health Research Institute, Hyattsville, Maryland
- Department of Medicine, School of Medicine, Georgetown University, Washington, DC
| | - Ana Navas-Acien
- Department of Environmental Health and Engineering, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, Maryland
- Department of Environmental Health Sciences, Mailman School of Public Health, Columbia University, New York, New York
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21
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Amin MHA, Xiong C, Glabonjat RA, Francesconi KA, Oguri T, Yoshinaga J. Estimation of daily intake of arsenolipids in Japan based on a market basket survey. Food Chem Toxicol 2018; 118:245-251. [DOI: 10.1016/j.fct.2018.05.019] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2017] [Revised: 04/02/2018] [Accepted: 05/07/2018] [Indexed: 11/26/2022]
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22
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Balakrishnan P, Navas-Acien A, Haack K, Vaidya D, Umans JG, Best LG, Goessler W, Francesconi KA, Franceschini N, North KE, Cole SA, Voruganti VS, Gribble MO. Arsenic-gene interactions and beta-cell function in the Strong Heart Family Study. Toxicol Appl Pharmacol 2018; 348:123-129. [PMID: 29621497 DOI: 10.1016/j.taap.2018.03.034] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [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: 11/08/2017] [Revised: 03/16/2018] [Accepted: 03/31/2018] [Indexed: 12/15/2022]
Abstract
We explored arsenic-gene interactions influencing pancreatic beta-cell activity in the Strong Heart Family Study (SHFS). We considered 42 variants selected for associations with either beta-cell function (31 variants) or arsenic metabolism (11 variants) in the SHFS. Beta-cell function was calculated as homeostatic model - beta corrected for insulin resistance (cHOMA-B) by regressing homeostatic model - insulin resistance (HOMA-IR) on HOMA-B and adding mean HOMA-B. Arsenic exposure was dichotomized at the median of the sum of creatinine-corrected inorganic and organic arsenic species measured by high performance liquid chromatography-inductively coupled plasma mass spectrometry (HPLC-ICPMS). Additive GxE models for cHOMA-B were adjusted for age and ancestry, and accounted for family relationships. Models were stratified by center (Arizona, Oklahoma, North Dakota and South Dakota) and meta-analyzed. The two interactions between higher vs. lower arsenic and SNPs for cHOMA-B that were nominally significant at P < 0.05 were with rs10738708 (SNP overall effect -3.91, P = 0.56; interaction effect with arsenic -31.14, P = 0.02) and rs4607517 (SNP overall effect +16.61, P = 0.03; interaction effect with arsenic +27.02, P = 0.03). The corresponding genes GCK and TUSC1 suggest oxidative stress and apoptosis as possible mechanisms for arsenic impacts on beta-cell function. No interactions were Bonferroni-significant (1.16 × 10-3). Our findings are suggestive of oligogenic moderation of arsenic impacts on pancreatic β-cell endocrine function, but were not Bonferroni-significant.
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Affiliation(s)
- Poojitha Balakrishnan
- Department of Environmental Health Sciences, Columbia University Mailman School of Public Health, New York, NY, United States
| | - Ana Navas-Acien
- Department of Environmental Health Sciences, Columbia University Mailman School of Public Health, New York, NY, United States
| | - Karin Haack
- Texas Biomedical Research Institute, San Antonio, TX, United States
| | - Dhananjay Vaidya
- Department of Epidemiology, Johns Hopkins University Bloomberg School of Public Health, Baltimore, MD, United States; Clinical and Translational Research, Johns Hopkins School of Medicine, Baltimore, MD, United States
| | - Jason G Umans
- MedStar Health Research Institute, Hyattsville, MD, United States
| | - Lyle G Best
- Missouri Breaks Industries Research, Inc., Eagle Butte, SD, United States
| | | | | | - Nora Franceschini
- Department of Epidemiology, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States
| | - Kari E North
- Department of Epidemiology, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States
| | - Shelley A Cole
- Texas Biomedical Research Institute, San Antonio, TX, United States
| | - V Saroja Voruganti
- Department of Nutrition and UNC Nutrition Research Institute, University of North Carolina at Chapel Hill, Kannapolis, NC, United States
| | - Matthew O Gribble
- Department of Environmental Health, Emory University Rollins School of Public Health, Atlanta, GA, United States; Department of Epidemiology, Emory University Rollins School of Public Health, Atlanta, GA, United States.
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23
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Schimek D, Raml R, Francesconi KA, Bodenlenz M, Sinner F. Quantification of acyclovir in dermal interstitial fluid and human serum by ultra-high-performance liquid-high-resolution tandem mass spectrometry for topical bioequivalence evaluation. Biomed Chromatogr 2018; 32:e4194. [DOI: 10.1002/bmc.4194] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2017] [Revised: 12/01/2017] [Accepted: 01/09/2018] [Indexed: 01/09/2023]
Affiliation(s)
- Denise Schimek
- Joanneum Research Forschungsgesellschaft mbH; HEALTH Institute for Biomedicine and Health Sciences; Graz Austria
- Institute of Chemistry; NAWI Graz, University of Graz; Austria
| | - Reingard Raml
- Joanneum Research Forschungsgesellschaft mbH; HEALTH Institute for Biomedicine and Health Sciences; Graz Austria
| | | | - Manfred Bodenlenz
- Joanneum Research Forschungsgesellschaft mbH; HEALTH Institute for Biomedicine and Health Sciences; Graz Austria
| | - Frank Sinner
- Joanneum Research Forschungsgesellschaft mbH; HEALTH Institute for Biomedicine and Health Sciences; Graz Austria
- Division of Endocrinology and Diabetology, Department of Internal Medicine; Medical University of Graz; Austria
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24
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Abstract
In humans, early life exposure to inorganic arsenic is associated with adverse health effects. Inorganic arsenic in utero or in early postnatal life also produces adverse health effects in offspring of pregnant mice that consumed drinking water containing low part per billion levels of inorganic arsenic. Because aggregate exposure of pregnant mice to inorganic arsenic from both drinking water and food has not been fully evaluated in experimental studies, quantifying arsenic exposure of the developing mouse is problematic. Here, we determined levels of total arsenic and arsenic species in natural ingredient rodent diets that are composed of many plant and animal-derived foodstuffs and in a purified ingredient rodent diet that is composed of a more restricted mixture of foodstuffs. In natural ingredient diets, total arsenic levels ranged from ∼60 to ∼400 parts per billion, and in the purified ingredient diet, total arsenic level was 13 parts per billion. Inorganic arsenic was the predominant arsenic species in trifluoroacetic acid extracts of each diet. Various exposure scenarios were evaluated using information on inorganic arsenic levels in diet and drinking water and on daily food and water consumption of pregnant mice. In a scenario in which pregnant mice consumed drinking water with 10 parts per billion of inorganic arsenic and a natural ingredient diet containing 89 parts per billion of inorganic arsenic, drinking water contributed only ∼20% of inorganic arsenic intake. Quantitation of arsenic species in diets used in studies in which drinking water is the nominal source of arsenic exposure provides more accurate dosimetry and improves understanding of dose-response relations. Use of purified ingredient diets will minimize the discrepancy between the target dosage level and the actual dosage level attained in utero exposure studies designed to evaluate effects of low level exposure to inorganic arsenic.
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Affiliation(s)
- Manuela Murko
- Institute of Chemistry, NAWI Graz, University of Graz, 8010 Graz, Austria
| | - Brittany Elek
- Pharmacokinetics Branch, Integrated Systems Toxicology Division, National Health and Environmental Effects Laboratory, Office of Research and Development, United States Environmental Protection Agency, Research Triangle Park, North Carolina 27709, United States
| | - Miroslav Styblo
- Department of Nutrition, Gillings School of Global Public Health, The University of North Carolina, Chapel Hill, North Carolina 27719, United States
| | - David J. Thomas
- Pharmacokinetics Branch, Integrated Systems Toxicology Division, National Health and Environmental Effects Laboratory, Office of Research and Development, United States Environmental Protection Agency, Research Triangle Park, North Carolina 27709, United States
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25
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Yu X, Xiong C, Jensen KB, Glabonjat RA, Stiboller M, Raber G, Francesconi KA. Mono-acyl arsenosugar phospholipids in the edible brown alga Kombu (Saccharina japonica). Food Chem 2018; 240:817-821. [PMID: 28946346 DOI: 10.1016/j.foodchem.2017.08.024] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [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: 05/06/2017] [Revised: 07/31/2017] [Accepted: 08/03/2017] [Indexed: 11/21/2022]
Abstract
Twenty one arsenolipids, including eight new compounds (AsSugPL 692, AsSugPL 706, AsSugPL 720, AsSugPL 734, AsSugPL 742, AsSugPL 746, AsSugPL 748, and AsSugPL 776) were identified in the edible brown alga Kombu, Saccharina japonica, by means of HPLC coupled with elemental and molecular mass spectrometry. The hitherto undescribed compounds are all mono-acyl arsenosugar phospholipids, differing from previously reported natural arsenic-containing phospholipids by containing only one fatty acid on the glycerol group. Collectively, this new group of mono-acyl compounds constituted about 30% of total lipid arsenic; other significant groups were the di-acyl arsenosugar phospholipids (50%) and arsenic hydrocarbons (20%). The origin and relevance of the mono-acyl arsenosugar phospholipids in Kombu, a commercial seafood product, is briefly discussed.
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Affiliation(s)
- Xinwei Yu
- College of Biosystems Engineering and Food Science, Zhejiang University, Fuli Institute of Food Science, Zhejiang Key Laboratory for Agro-Food Processing, Zhejiang R & D Center for Food Technology and Equipment, Hangzhou 310058, China; Key Laboratory of Health Risk Factors for Seafood of Zhejiang Province, Zhoushan Municipal Center For Disease Control and Prevention, Zhoushan 316021, China
| | - Chan Xiong
- Institute of Chemistry, NAWI Graz, University of Graz, 8010, Austria
| | - Kenneth B Jensen
- Institute of Chemistry, NAWI Graz, University of Graz, 8010, Austria
| | | | - Michael Stiboller
- Institute of Chemistry, NAWI Graz, University of Graz, 8010, Austria
| | - Georg Raber
- Institute of Chemistry, NAWI Graz, University of Graz, 8010, Austria
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26
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Glabonjat RA, Raber G, Van Mooy BAS, Francesconi KA. Arsenobetaine in Seawater: Depth Profiles from Selected Sites in the North Atlantic. Environ Sci Technol 2018; 52:522-530. [PMID: 29232115 DOI: 10.1021/acs.est.7b03939] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Arsenic occurs in marine waters, typically at concentrations of 1-2 μg As kg-1, primarily as the inorganic species arsenate. Marine animals, however, contain extremely high levels of arsenic (typically 2000-20 000 μg As kg-1 wet mass), most of which is present as arsenobetaine, an organic form of arsenic that has never been found in seawater. We report a method based on ion-exchange preconcentration and HPLC/mass spectrometry to measure arsenobetaine in seawater, and apply the method to samples of seawater collected at various depths from seven sites in the North Atlantic. Arsenobetaine was detected in most samples at levels ranging from 0.5 to 10 ng As kg-1, and was found at depths down to 4900 m. Furthermore, we report the presence of 15 additional organoarsenicals in seawater, 14 of which had never been detected in marine waters. The arsenobetaine depth profile was related, albeit weakly, to that of chlorophyll; this relationship probably reflects arsenobetaine's release to water from marine animals associated with the euphotic zone rather than its direct biosynthesis by primary producers. Future application of the new method for seawater analysis will shed new light on the biogeochemical cycle of marine arsenic.
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Affiliation(s)
- Ronald A Glabonjat
- University of Graz, NAWI-Graz, Institute of Chemistry , 8010 Graz, Austria
| | - Georg Raber
- University of Graz, NAWI-Graz, Institute of Chemistry , 8010 Graz, Austria
| | - Benjamin A S Van Mooy
- Woods Hole Oceanographic Institution , Department of Marine Chemistry and Geochemistry, Woods Hole, Massachusetts 02543, United States
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27
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Glabonjat RA, Ehgartner J, Duncan EG, Raber G, Jensen KB, Krikowa F, Maher WA, Francesconi KA. Arsenolipid biosynthesis by the unicellular alga Dunaliella tertiolecta is influenced by As/P ratio in culture experiments. Metallomics 2018; 10:145-153. [DOI: 10.1039/c7mt00249a] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Culture experiments exposing unicellular algae to varying arsenate/phosphate regimes and determining their arsenometallomes by HPLC–MS shows the interconnection of arsenolipids and water-soluble arsenicals.
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Affiliation(s)
- Ronald A. Glabonjat
- Institute of Chemistry
- NAWI Graz
- University of Graz
- Universitaetsplatz 1
- 8010 Graz
| | - Josef Ehgartner
- Institute of Chemistry
- NAWI Graz
- University of Graz
- Universitaetsplatz 1
- 8010 Graz
| | - Elliott G. Duncan
- Ecochemistry Laboratory
- Institute for Applied Ecology
- University of Canberra
- University Drive
- Bruce
| | - Georg Raber
- Institute of Chemistry
- NAWI Graz
- University of Graz
- Universitaetsplatz 1
- 8010 Graz
| | - Kenneth B. Jensen
- Institute of Chemistry
- NAWI Graz
- University of Graz
- Universitaetsplatz 1
- 8010 Graz
| | - Frank Krikowa
- Ecochemistry Laboratory
- Institute for Applied Ecology
- University of Canberra
- University Drive
- Bruce
| | - William A. Maher
- Ecochemistry Laboratory
- Institute for Applied Ecology
- University of Canberra
- University Drive
- Bruce
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28
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Turrini NG, Kroepfl N, Jensen KB, Reiter TC, Francesconi KA, Schwerdtle T, Kroutil W, Kuehnelt D. Biosynthesis and isolation of selenoneine from genetically modified fission yeast. Metallomics 2018; 10:1532-1538. [DOI: 10.1039/c8mt00200b] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Selenoneine was successfully purified from genetically modifiedSchizosaccharomyces pombegrown in selenate containing culture medium.
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Affiliation(s)
- Nikolaus G. Turrini
- Institute of Chemistry
- Analytical Chemistry
- NAWI Graz
- University of Graz
- 8010 Graz
| | - Nina Kroepfl
- Institute of Chemistry
- Analytical Chemistry
- NAWI Graz
- University of Graz
- 8010 Graz
| | - Kenneth B. Jensen
- Institute of Chemistry
- Analytical Chemistry
- NAWI Graz
- University of Graz
- 8010 Graz
| | - Tamara C. Reiter
- Institute of Chemistry
- Organic and Bioorganic Chemistry
- NAWI Graz
- University of Graz
- 8010 Graz
| | | | - Tanja Schwerdtle
- Institute of Nutritional Science
- University of Potsdam
- 14558 Nuthetal
- Germany
| | - Wolfgang Kroutil
- Institute of Chemistry
- Organic and Bioorganic Chemistry
- NAWI Graz
- University of Graz
- 8010 Graz
| | - Doris Kuehnelt
- Institute of Chemistry
- Analytical Chemistry
- NAWI Graz
- University of Graz
- 8010 Graz
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29
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Grau-Perez M, Kuo CC, Gribble MO, Balakrishnan P, Jones Spratlen M, Vaidya D, Francesconi KA, Goessler W, Guallar E, Silbergeld EK, Umans JG, Best LG, Lee ET, Howard BV, Cole SA, Navas-Acien A. Association of Low-Moderate Arsenic Exposure and Arsenic Metabolism with Incident Diabetes and Insulin Resistance in the Strong Heart Family Study. Environ Health Perspect 2017; 125:127004. [PMID: 29373862 PMCID: PMC5963590 DOI: 10.1289/ehp2566] [Citation(s) in RCA: 80] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/23/2017] [Revised: 10/30/2017] [Accepted: 11/07/2017] [Indexed: 05/02/2023]
Abstract
BACKGROUND High arsenic exposure has been related to diabetes, but at low-moderate levels the evidence is mixed. Arsenic metabolism, which is partly genetically controlled and may rely on certain B vitamins, plays a role in arsenic toxicity. OBJECTIVE We evaluated the prospective association of arsenic exposure and metabolism with type 2 diabetes and insulin resistance. METHODS We included 1,838 American Indian men and women free of diabetes (median age, 36 y). Arsenic exposure was assessed as the sum of inorganic arsenic (iAs), monomethylarsonate (MMA), and dimethylarsinate (DMA) urine concentrations (ΣAs). Arsenic metabolism was evaluated by the proportions of iAs, MMA, and DMA over their sum (iAs%, MMA%, and DMA%). Homeostasis model assessment for insulin resistance (HOMA2-IR) was measured at baseline and follow-up visits. Incident diabetes was evaluated at follow-up. RESULTS Median ΣAs, iAs%, MMA%, and DMA% was 4.4 μg/g creatinine, 9.5%, 14.4%, and 75.6%, respectively. Over 10,327 person-years of follow-up, 252 participants developed diabetes. Median HOMA2-IR at baseline was 1.5. The fully adjusted hazard ratio [95% confidence interval (CI)] for incident diabetes per an interquartile range increase in ΣAs was 1.57 (95% CI: 1.18, 2.08) in participants without prediabetes at baseline. Arsenic metabolism was not associated with incident diabetes. ΣAs was positively associated with HOMA2-IR at baseline but negatively with HOMA2-IR at follow-up. Increased MMA% was associated with lower HOMA2-IR when either iAs% or DMA% decreased. The association of arsenic metabolism with HOMA2-IR differed by B-vitamin intake and AS3MT genetics variants. CONCLUSIONS Among participants without baseline prediabetes, arsenic exposure was associated with incident diabetes. Low MMA% was cross-sectional and prospectively associated with higher HOMA2-IR. Research is needed to confirm possible interactions of arsenic metabolism with B vitamins and AS3MT variants on diabetes risk. https://doi.org/10.1289/EHP2566.
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Affiliation(s)
- Maria Grau-Perez
- Department of Environmental Health and Engineering, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA
- Department of Environmental Health Sciences, Columbia University Mailman School of Public Health, New York City, New York, USA
| | - Chin-Chi Kuo
- Department of Environmental Health and Engineering, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA
- Welch Center for Prevention, Epidemiology and Clinical Research, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA
- Kidney Institute and Division of Nephrology, Department of Internal Medicine, China Medical University Hospital, Taichung, Taiwan
- Big Data Center, China Medical University Hospital , China Medical University , Taichung, Taiwan
- School of Medicine, College of Medicine, China Medical University, Taichung, Taiwan
| | - Matthew O Gribble
- Department of Environmental Health, Rollins School of Public Health, Emory University, Atlanta, Georgia, USA
| | - Poojitha Balakrishnan
- Department of Environmental Health and Engineering, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA
- Department of Environmental Health Sciences, Columbia University Mailman School of Public Health, New York City, New York, USA
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA
| | - Miranda Jones Spratlen
- Department of Environmental Health and Engineering, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA
- Department of Environmental Health Sciences, Columbia University Mailman School of Public Health, New York City, New York, USA
| | - Dhananjay Vaidya
- Division of General Internal Medicine, Department of Medicine, Johns Hopkins School of Medicine, Baltimore, Maryland, USA
| | | | | | - Eliseo Guallar
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA
- Welch Center for Prevention, Epidemiology and Clinical Research, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA
- Department of Medicine, Johns Hopkins School of Medicine, Baltimore, Maryland, USA
| | - Ellen K Silbergeld
- Department of Environmental Health and Engineering, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA
| | - Jason G Umans
- Georgetown-Howard Universities Center for Clinical and Translational Science, Washington, DC, USA
- MedStar Health Research Institute, Hyattsville, Maryland, USA
| | - Lyle G Best
- Department of Epidemiology, Missouri Breaks Industries Research, Inc., Eagle Butte, South Dakota, USA
| | - Elisa T Lee
- Center for American Indian Health Research, College of Public Health, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma, USA
| | - Barbara V Howard
- Georgetown-Howard Universities Center for Clinical and Translational Science, Washington, DC, USA
- MedStar Health Research Institute, Hyattsville, Maryland, USA
| | - Shelley A Cole
- Department of Genetics, Texas Biomedical Research Institute, San Antonio, Texas, USA
| | - Ana Navas-Acien
- Department of Environmental Health and Engineering, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA
- Department of Environmental Health Sciences, Columbia University Mailman School of Public Health, New York City, New York, USA
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA
- Welch Center for Prevention, Epidemiology and Clinical Research, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA
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30
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Lajin B, Kuehnelt D, Francesconi KA. Exploring the urinary selenometabolome following a multi-phase selenite administration regimen in humans. Metallomics 2017; 8:774-81. [PMID: 27276690 DOI: 10.1039/c6mt00051g] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
To gain more insight into the human metabolism of the essential trace element selenium, we investigate the response of the urinary selenium metabolites to changing selenium intake by applying a stepwise selenium administration regimen based on repeated dosaging. Sodium selenite was administered orally to healthy volunteers at an incrementally increasing dosage. The supplementation regimen extended over 20 days for each volunteer, and daily morning urine samples were collected prior to, during, and following the supplementation phases. A total of 160 urine samples were analyzed for total urinary selenium and a panel of selenometabolites by using ICPMS and HPLC/ICPMS. Selenosugar 1 gave the strongest response followed by TMSe and then selenosugar 3. Se-methylselenoneine excretion was not stimulated by increased selenium intake, suggesting that it is not in equilibrium with selenium body pools. Selenate was detected in all urine samples; it showed a clear and consistent response to supplementation and an abrupt return to baseline levels upon cessation of supplementation, indicating that it arose from the oxidation of the administered selenite rather than from the oxidation of endogenous hydrogen selenide. The gap between total urinary selenium and the sum of Se species markedly increased in response to selenium administration, which highlights the presence of unknown Se species that respond to selenite supplementation. The characterization of these unknown species and their possible biological activities might be essential before considering selenium supplementation in clinical trials. We discuss the implications of the responses of the selenium metabolites and their inter-relationships for selenium metabolism.
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Affiliation(s)
- Bassam Lajin
- Institute of Chemistry-Analytical Chemistry, NAWI Graz, University of Graz, Universitaetsplatz 1, 8010 Graz, Austria.
| | - Doris Kuehnelt
- Institute of Chemistry-Analytical Chemistry, NAWI Graz, University of Graz, Universitaetsplatz 1, 8010 Graz, Austria.
| | - Kevin A Francesconi
- Institute of Chemistry-Analytical Chemistry, NAWI Graz, University of Graz, Universitaetsplatz 1, 8010 Graz, Austria.
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31
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Müller SM, Ebert F, Raber G, Meyer S, Bornhorst J, Hüwel S, Galla HJ, Francesconi KA, Schwerdtle T. Effects of arsenolipids on in vitro blood-brain barrier model. Arch Toxicol 2017; 92:823-832. [PMID: 29058019 DOI: 10.1007/s00204-017-2085-8] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [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: 07/17/2017] [Accepted: 09/26/2017] [Indexed: 02/04/2023]
Abstract
Arsenic-containing hydrocarbons (AsHCs), a subgroup of arsenolipids (AsLs) occurring in fish and edible algae, possess a substantial neurotoxic potential in fully differentiated human brain cells. Previous in vivo studies indicating that AsHCs cross the blood-brain barrier of the fruit fly Drosophila melanogaster raised the question whether AsLs could also cross the vertebrate blood-brain barrier (BBB). In the present study, we investigated the impact of several representatives of AsLs (AsHC 332, AsHC 360, AsHC 444, and two arsenic-containing fatty acids, AsFA 362 and AsFA 388) as well as of their metabolites (thio/oxo-dimethylpropionic acid, dimethylarsinic acid) on porcine brain capillary endothelial cells (PBCECs, in vitro model for the blood-brain barrier). AsHCs exerted the strongest cytotoxic effects of all investigated arsenicals as they were up to fivefold more potent than the toxic reference species arsenite (iAsIII). In our in vitro BBB-model, we observed a slight transfer of AsHC 332 across the BBB after 6 h at concentrations that do not affect the barrier integrity. Furthermore, incubation with AsHCs for 72 h led to a disruption of the barrier at sub-cytotoxic concentrations. The subsequent immunocytochemical staining of three tight junction proteins revealed a significant impact on the cell membrane. Because AsHCs enhance the permeability of the in vitro blood-brain barrier, a similar behavior in an in vivo system cannot be excluded. Consequently, AsHCs might facilitate the transfer of accompanying foodborne toxicants into the brain.
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Affiliation(s)
- S M Müller
- Institute of Nutritional Science, University of Potsdam, Arthur-Scheunert-Allee 114-116, 14558, Nuthetal, Germany.,Heinrich-Stockmeyer Foundation, Parkstraße 44-46, 49214, Bad Rothenfelde, Germany
| | - F Ebert
- Institute of Nutritional Science, University of Potsdam, Arthur-Scheunert-Allee 114-116, 14558, Nuthetal, Germany
| | - G Raber
- Institute of Chemistry, NAWI Graz, University of Graz, Universitaetsplatz 1, 8010, Graz, Austria
| | - S Meyer
- Institute of Nutritional Science, University of Potsdam, Arthur-Scheunert-Allee 114-116, 14558, Nuthetal, Germany
| | - J Bornhorst
- Institute of Nutritional Science, University of Potsdam, Arthur-Scheunert-Allee 114-116, 14558, Nuthetal, Germany
| | - S Hüwel
- Institute of Biochemistry, University of Münster, Wilhelm-Klemm-Str. 2, 48149, Münster, Germany
| | - H-J Galla
- Institute of Biochemistry, University of Münster, Wilhelm-Klemm-Str. 2, 48149, Münster, Germany
| | - K A Francesconi
- Institute of Chemistry, NAWI Graz, University of Graz, Universitaetsplatz 1, 8010, Graz, Austria
| | - T Schwerdtle
- Institute of Nutritional Science, University of Potsdam, Arthur-Scheunert-Allee 114-116, 14558, Nuthetal, Germany.
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32
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Glabonjat RA, Raber G, Jensen KB, Guttenberger N, Zangger K, Francesconi KA. A 2- O
-Methylriboside Unknown Outside the RNA World Contains Arsenic. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201706310] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Ronald A. Glabonjat
- Institute of Chemistry; NAWI Graz; University of Graz; Universitaetsplatz 1/I 8010 Graz Austria
| | - Georg Raber
- Institute of Chemistry; NAWI Graz; University of Graz; Universitaetsplatz 1/I 8010 Graz Austria
| | - Kenneth B. Jensen
- Institute of Chemistry; NAWI Graz; University of Graz; Universitaetsplatz 1/I 8010 Graz Austria
| | - Nikolaus Guttenberger
- Institute of Chemistry; NAWI Graz; University of Graz; Universitaetsplatz 1/I 8010 Graz Austria
| | - Klaus Zangger
- Institute of Chemistry; NAWI Graz; University of Graz; Universitaetsplatz 1/I 8010 Graz Austria
| | - Kevin A. Francesconi
- Institute of Chemistry; NAWI Graz; University of Graz; Universitaetsplatz 1/I 8010 Graz Austria
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33
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Witt B, Ebert F, Meyer S, Francesconi KA, Schwerdtle T. Assessing neurodevelopmental effects of arsenolipids in pre-differentiated human neurons. Mol Nutr Food Res 2017; 61. [DOI: 10.1002/mnfr.201700199] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2017] [Revised: 07/13/2017] [Accepted: 07/14/2017] [Indexed: 11/12/2022]
Affiliation(s)
- Barbara Witt
- Institute of Nutritional Science; University of Potsdam; Nuthetal Germany
| | - Franziska Ebert
- Institute of Nutritional Science; University of Potsdam; Nuthetal Germany
| | - Sören Meyer
- Institute of Nutritional Science; University of Potsdam; Nuthetal Germany
| | | | - Tanja Schwerdtle
- Institute of Nutritional Science; University of Potsdam; Nuthetal Germany
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34
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Glabonjat RA, Raber G, Jensen KB, Guttenberger N, Zangger K, Francesconi KA. A 2-O
-Methylriboside Unknown Outside the RNA World Contains Arsenic. Angew Chem Int Ed Engl 2017; 56:11963-11965. [DOI: 10.1002/anie.201706310] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2017] [Indexed: 11/08/2022]
Affiliation(s)
- Ronald A. Glabonjat
- Institute of Chemistry; NAWI Graz; University of Graz; Universitaetsplatz 1/I 8010 Graz Austria
| | - Georg Raber
- Institute of Chemistry; NAWI Graz; University of Graz; Universitaetsplatz 1/I 8010 Graz Austria
| | - Kenneth B. Jensen
- Institute of Chemistry; NAWI Graz; University of Graz; Universitaetsplatz 1/I 8010 Graz Austria
| | - Nikolaus Guttenberger
- Institute of Chemistry; NAWI Graz; University of Graz; Universitaetsplatz 1/I 8010 Graz Austria
| | - Klaus Zangger
- Institute of Chemistry; NAWI Graz; University of Graz; Universitaetsplatz 1/I 8010 Graz Austria
| | - Kevin A. Francesconi
- Institute of Chemistry; NAWI Graz; University of Graz; Universitaetsplatz 1/I 8010 Graz Austria
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35
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Moon KA, Navas-Acien A, Grau-Pérez M, Francesconi KA, Goessler W, Guallar E, Umans JG, Best LG, Newman JD. Low-moderate urine arsenic and biomarkers of thrombosis and inflammation in the Strong Heart Study. PLoS One 2017; 12:e0182435. [PMID: 28771557 PMCID: PMC5542675 DOI: 10.1371/journal.pone.0182435] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2017] [Accepted: 07/18/2017] [Indexed: 12/30/2022] Open
Abstract
The underlying pathology of arsenic-related cardiovascular disease (CVD) is unknown. Few studies have evaluated pathways through thrombosis and inflammation for arsenic-related CVD, especially at low-moderate arsenic exposure levels (<100 μg/L in drinking water). We evaluated the association of chronic low-moderate arsenic exposure, measured as the sum of inorganic and methylated arsenic species in urine (ΣAs), with plasma biomarkers of thrombosis and inflammation in American Indian adults (45-74 years) in the Strong Heart Study. We evaluated the cross-sectional and longitudinal associations between baseline ΣAs with fibrinogen at three visits (baseline, 1989-91; Visit 2, 1993-95, Visit 3, 1998-99) using mixed models and the associations between baseline ΣAs and Visit 2 plasminogen activator inhibitor-1 (PAI-1) and high sensitivity C-reactive protein (hsCRP) using linear regression. Median (interquartile range) concentrations of baseline ΣAs and fibrinogen, and Visit 2 hsCRP and PAI-1 were 8.4 (5.1, 14.3) μg/g creatinine, 346 (304, 393) mg/dL, 44 (30, 67) mg/L, and 3.8 (2.0, 7.0) ng/mL, respectively. Comparing the difference between the 75th and the 25th percentile of ΣAs (14.3 vs. 5.1 μg/g creatinine), ΣAs was positively associated with baseline fibrinogen among those with diabetes (adjusted geometric mean ratio (GMR): 1.05, 95% CI: 1.02, 1.07) not associated among those without diabetes (GMR: 1.01, 95% CI: 0.99, 1.02) (p-interaction for diabetes = 0.014), inversely associated with PAI-1 (GMR: 0.94, 95% CI: 0.90, 0.99), and not associated with hsCRP (GMR: 1.00, 95% CI: 0.93, 1.08). We found no evidence for an association between baseline ΣAs and annual change in fibrinogen over follow-up (p-interaction = 0.28 and 0.12 for diabetes and non-diabetes, respectively). Low-moderate arsenic exposure was positively associated with baseline fibrinogen in participants with diabetes and unexpectedly inversely associated with PAI-1. Further research should evaluate the role of prothrombotic factors in arsenic-related cardiovascular disease.
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Affiliation(s)
- Katherine A Moon
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, United States of America
| | - Ana Navas-Acien
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, United States of America.,Department of Environmental Health Sciences, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, United States of America
| | - Maria Grau-Pérez
- Department of Environmental Health Sciences, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, United States of America
| | - Kevin A Francesconi
- Institute of Chemistry-Analytical Chemistry, University of Graz, Graz, Austria
| | - Walter Goessler
- Institute of Chemistry-Analytical Chemistry, University of Graz, Graz, Austria
| | - Eliseo Guallar
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, United States of America
| | - Jason G Umans
- MedStar Health Research Institute, Hyattsville, MD, United States of America
| | - Lyle G Best
- Missouri Breaks Industries Research, Timber Lake, SD, United States of America
| | - Jonathan D Newman
- New York University School of Medicine, New York, NY, United States of America
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Mateen FJ, Grau-Perez M, Pollak JS, Moon KA, Howard BV, Umans JG, Best LG, Francesconi KA, Goessler W, Crainiceanu C, Guallar E, Devereux RB, Roman MJ, Navas-Acien A. Chronic arsenic exposure and risk of carotid artery disease: The Strong Heart Study. Environ Res 2017; 157:127-134. [PMID: 28554006 PMCID: PMC5546150 DOI: 10.1016/j.envres.2017.05.020] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [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] [Received: 01/11/2017] [Revised: 05/15/2017] [Accepted: 05/16/2017] [Indexed: 05/27/2023]
Abstract
BACKGROUND Inorganic arsenic exposure from naturally contaminated groundwater is related to vascular disease. No prospective studies have evaluated the association between arsenic and carotid atherosclerosis at low-moderate levels. We examined the association of long-term, low-moderate inorganic arsenic exposure with carotid arterial disease. METHODS American Indians, 45-74 years old, in Arizona, Oklahoma, and North and South Dakota had arsenic concentrations (sum of inorganic and methylated species, μg/g urine creatinine) measured from baseline urine samples (1989-1991). Carotid artery ultrasound was performed in 1998-1999. Vascular disease was assessed by the carotid intima media thickness (CIMT), the presence of atherosclerotic plaque in the carotid, and by the number of segments containing plaque (plaque score). RESULTS 2402 participants (mean age 55.3 years, 63.1% female, mean body mass index 31.0kg/m2, diabetes 45.7%, hypertension 34.2%) had a median (interquintile range) urine arsenic concentration of 9.2 (5.00, 17.06) µg/g creatinine. The mean CIMT was 0.75mm. 64.7% had carotid artery plaque (3% with >50% stenosis). In fully adjusted models comparing participants in the 80th vs. 20th percentile in arsenic concentrations, the mean difference in CIMT was 0.01 (95% confidence interval (95%CI): 0.00, 0.02) mm, the relative risk of plaque presence was 1.04 (95%CI: 0.99, 1.09), and the geometric mean ratio of plaque score was 1.05 (95%CI: 1.01, 1.09). CONCLUSIONS Urine arsenic was positively associated with CIMT and increased plaque score later in life although the association was small. The relationship between urinary arsenic and the presence of plaque was not statistically significant when adjusted for other risk factors. Arsenic exposure may play a role in increasing the severity of carotid vascular disease.
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Affiliation(s)
- Farrah J Mateen
- Department of Neurology, Massachusetts General Hospital, Boston, MA, United States; Harvard Medical School, Boston, MA, United States
| | - Maria Grau-Perez
- Department of Environmental Health Sciences, Columbia University Mailman School of Public Health, New York, NY, United States
| | - Jonathan S Pollak
- Department of Environmental Health Sciences, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, United States
| | - Katherine A Moon
- Department of Environmental Health Sciences, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, United States; Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, United States; Welch Center for Prevention, Epidemiology and Clinical Research, Johns Hopkins Medical Institutions, Baltimore, MD, United States
| | - Barbara V Howard
- MedStar Health Research Institute and Georgetown/Howard Universities Center for Clinical and Translational Sciences, Washington DC, United States
| | - Jason G Umans
- MedStar Health Research Institute and Georgetown/Howard Universities Center for Clinical and Translational Sciences, Washington DC, United States
| | - Lyle G Best
- Missouri Breaks Industries Research, Inc, Eagle Butte, SD, United States
| | | | | | - Ciprian Crainiceanu
- Department of Biostatistics, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, United States
| | - Eliseo Guallar
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, United States; Welch Center for Prevention, Epidemiology and Clinical Research, Johns Hopkins Medical Institutions, Baltimore, MD, United States
| | - Richard B Devereux
- Division of Cardiology, Weill Cornell Medical College, New York, NY, United States
| | - Mary J Roman
- Division of Cardiology, Weill Cornell Medical College, New York, NY, United States
| | - Ana Navas-Acien
- Department of Environmental Health Sciences, Columbia University Mailman School of Public Health, New York, NY, United States; Department of Environmental Health Sciences, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, United States; Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, United States; Welch Center for Prevention, Epidemiology and Clinical Research, Johns Hopkins Medical Institutions, Baltimore, MD, United States.
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37
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Stiboller M, Raber G, Gjengedal ELF, Eggesbø M, Francesconi KA. Quantifying Inorganic Arsenic and Other Water-Soluble Arsenic Species in Human Milk by HPLC/ICPMS. Anal Chem 2017; 89:6265-6271. [DOI: 10.1021/acs.analchem.7b01276] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Michael Stiboller
- Institute
of Chemistry, NAWI Graz, University of Graz, 8010 Graz, Austria
| | - Georg Raber
- Institute
of Chemistry, NAWI Graz, University of Graz, 8010 Graz, Austria
| | - Elin Lovise Folven Gjengedal
- Faculty
of Environmental Sciences and Natural Resource Management, Norwegian University of Life Sciences, 1432 Ås, Norway
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38
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Donner MW, Javed MB, Shotyk W, Francesconi KA, Siddique T. Arsenic speciation in the lower Athabasca River watershed: A geochemical investigation of the dissolved and particulate phases. Environ Pollut 2017; 224:265-274. [PMID: 28216136 DOI: 10.1016/j.envpol.2017.02.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2016] [Revised: 01/30/2017] [Accepted: 02/02/2017] [Indexed: 05/05/2023]
Abstract
Human and ecosystem health concerns for arsenic (As) in the lower Athabasca River downstream of Athabasca Bituminous Sands (ABS) mining (Alberta, Canada) prompted an investigation to determine its forms in surface and groundwater upstream and downstream of industry. Dissolved As species, together with total and particulate As, were used to evaluate the potential bioavailability of As in water as well as to decipher inputs from natural geological processes and ABS mining and upgrading activities. Water samples were collected from the river in October at 13 locations in 2014 and 19 locations in 2015, spanning up to 125 km. Additional samples were collected from groundwater, tributaries and springs. "Dissolved" (<0.45 μm) As was consistently low in the Athabasca River (average 0.37 ± 0.01 and 0.34 ± 0.01 μg L-1 in 2014 and 2015, respectively) as well as tributaries and springs (<1 μg L-1), with As(V) as the predominant form. The average total As concentration was higher in 2014 (12.7 ± 2.8 μg L-1) than 2015 (3.3 ± 0.65 μg L-1) with nearly all As associated with suspended solids (>0.45 μm). In 2014, when total As concentrations were greater, a significant correlation (p < 0.05) was observed with thorium in particles > 0.45 μm, suggesting that mineral material is an important source of As. Naturally saline groundwater contained low dissolved As (<2 μg L-1) and did not appear to be a significant source to the river. Arsenic in shallow groundwater near a tailings pond exceeded 50 μg L-1 predominantly as As(III) warranting further investigation.
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Affiliation(s)
- Mark W Donner
- Department of Renewable Resources, University of Alberta, Edmonton, AB T6G 2E3, Canada
| | - Muhammad Babar Javed
- Department of Renewable Resources, University of Alberta, Edmonton, AB T6G 2E3, Canada
| | - William Shotyk
- Department of Renewable Resources, University of Alberta, Edmonton, AB T6G 2E3, Canada
| | | | - Tariq Siddique
- Department of Renewable Resources, University of Alberta, Edmonton, AB T6G 2E3, Canada.
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Nachman KE, Love DC, Baron PA, Nigra AE, Murko M, Raber G, Francesconi KA, Navas-Acien A. Nitarsone, Inorganic Arsenic, and Other Arsenic Species in Turkey Meat: Exposure and Risk Assessment Based on a 2014 U.S. Market Basket Sample. Environ Health Perspect 2017; 125:363-369. [PMID: 27735789 PMCID: PMC5332177 DOI: 10.1289/ehp225] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/11/2015] [Revised: 07/21/2016] [Accepted: 07/23/2016] [Indexed: 05/03/2023]
Abstract
BACKGROUND Use of nitarsone, an arsenic-based poultry drug, may result in dietary exposures to inorganic arsenic (iAs) and other arsenic species. Nitarsone was withdrawn from the U.S. market in 2015, but its use in other countries may continue. OBJECTIVES We characterized the impact of nitarsone use on arsenic species in turkey meat and arsenic exposures among turkey consumers, and we estimated cancer risk increases from consuming turkey treated with nitarsone before its 2015 U.S. withdrawal. METHODS Turkey from three cities was analyzed for total arsenic, iAs, methylarsonate (MA), dimethylarsinate, and nitarsone, which were compared across label type and month of purchase. Turkey consumption was estimated from NHANES data to estimate daily arsenic exposures for adults and children 4-30 months of age and cancer risks among adult consumers. RESULTS Turkey meat from conventional producers not prohibiting nitarsone use showed increased mean levels of iAs (0.64 μg/kg) and MA (5.27 μg/kg) compared with antibiotic-free and organic meat (0.39 μg/kg and 1.54 μg/kg, respectively) and meat from conventional producers prohibiting nitarsone use (0.33 μg/kg and 0.28 μg/kg, respectively). Samples with measurable nitarsone had the highest mean iAs and MA (0.92 μg/kg and 10.96 μg/kg, respectively). Nitarsone was higher in October samples than in March samples, possibly resulting from increased summer use. Based on mean iAs concentrations in samples from conventional producers with no known policy versus policies prohibiting nitarsone, estimated lifetime daily consumption by an 80-kg adult, and a recently proposed cancer slope factor, we estimated that use of nitarsone by all turkey producers would result in 3.1 additional cases of bladder or lung cancer per 1,000,000 consumers. CONCLUSIONS Nitarsone use can expose turkey consumers to iAs and MA. The results of our study support the U.S. Food and Drug Administration's removal of nitarsone from the U.S. market and further support its removal from the global marketplace. Citation: Nachman KE, Love DC, Baron PA, Nigra AE, Murko M, Raber G, Francesconi KA, Navas-Acien A. 2017. Nitarsone, inorganic arsenic, and other arsenic species in turkey meat: exposure and risk assessment based on a 2014 U.S. market basket sample. Environ Health Perspect 125:363-369; http://dx.doi.org/10.1289/EHP225.
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Affiliation(s)
- Keeve E. Nachman
- Johns Hopkins Center for a Livable Future,
- Department of Environmental Health Sciences,
- Department of Health Policy and Management,
- Risk Sciences and Public Policy Institute, and
- Address correspondence to K.E. Nachman, 615 N. Wolfe St., W7010-E, Baltimore, MD 21205 USA. Telephone: (410) 502-7578. E-mail:
| | - David C. Love
- Johns Hopkins Center for a Livable Future,
- Department of Environmental Health Sciences,
| | - Patrick A. Baron
- Johns Hopkins Center for a Livable Future,
- Department of Environmental Health Sciences,
| | - Anne E. Nigra
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA
- Department of Environmental Health Sciences, Columbia University Mailman School of Public Health, New York, New York, USA
| | - Manuela Murko
- Institute of Chemistry-Analytical Chemistry, University of Graz, Graz, Austria
| | - Georg Raber
- Institute of Chemistry-Analytical Chemistry, University of Graz, Graz, Austria
| | | | - Ana Navas-Acien
- Department of Environmental Health Sciences,
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA
- Department of Environmental Health Sciences, Columbia University Mailman School of Public Health, New York, New York, USA
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40
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Taylor V, Goodale B, Raab A, Schwerdtle T, Reimer K, Conklin S, Karagas MR, Francesconi KA. Human exposure to organic arsenic species from seafood. Sci Total Environ 2017; 580:266-282. [PMID: 28024743 PMCID: PMC5326596 DOI: 10.1016/j.scitotenv.2016.12.113] [Citation(s) in RCA: 277] [Impact Index Per Article: 39.6] [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] [Received: 08/15/2016] [Revised: 12/13/2016] [Accepted: 12/16/2016] [Indexed: 05/18/2023]
Abstract
Seafood, including finfish, shellfish, and seaweed, is the largest contributor to arsenic (As) exposure in many human populations. In contrast to the predominance of inorganic As in water and many terrestrial foods, As in marine-derived foods is present primarily in the form of organic compounds. To date, human exposure and toxicological assessments have focused on inorganic As, while organic As has generally been considered to be non-toxic. However, the high concentrations of organic As in seafood, as well as the often complex As speciation, can lead to complications in assessing As exposure from diet. In this report, we evaluate the presence and distribution of organic As species in seafood, and combined with consumption data, address the current capabilities and needs for determining human exposure to these compounds. The analytical approaches and shortcomings for assessing these compounds are reviewed, with a focus on the best practices for characterization and quantitation. Metabolic pathways and toxicology of two important classes of organic arsenicals, arsenolipids and arsenosugars, are examined, as well as individual variability in absorption of these compounds. Although determining health outcomes or assessing a need for regulatory policies for organic As exposure is premature, the extensive consumption of seafood globally, along with the preliminary toxicological profiles of these compounds and their confounding effect on assessing exposure to inorganic As, suggests further investigations and process-level studies on organic As are needed to fill the current gaps in knowledge.
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Affiliation(s)
| | | | | | | | - Ken Reimer
- Royal Military College, Kingston, Ontario, Canada
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Witt B, Meyer S, Ebert F, Francesconi KA, Schwerdtle T. Toxicity of two classes of arsenolipids and their water-soluble metabolites in human differentiated neurons. Arch Toxicol 2017; 91:3121-3134. [PMID: 28180949 DOI: 10.1007/s00204-017-1933-x] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [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: 09/26/2016] [Accepted: 01/12/2017] [Indexed: 01/17/2023]
Abstract
Arsenolipids are lipid-soluble organoarsenic compounds, mainly occurring in marine organisms, with arsenic-containing hydrocarbons (AsHCs) and arsenic-containing fatty acids (AsFAs) representing two major subgroups. Recently, toxicity studies of several arsenolipids showed a high cytotoxic potential of those arsenolipids in human liver and bladder cells. Furthermore, feeding studies with Drosophila melanogaster indicated an accumulation of arsenolipids in the fruit fly's brain. In this study, the neurotoxic potential of three AsHCs, two AsFAs and three metabolites (dimethylarsinic acid, thio/oxo-dimethylarsenopropanoic acid) was investigated in comparison to the toxic reference arsenite (iAsIII) in fully differentiated human brain cells (LUHMES cells). Thereby, in the case of AsHCs both the cell number and cell viability were reduced in a low micromolar concentration range comparable to iAsIII, while AsFAs and the applied metabolites were less toxic. Mechanistic studies revealed that AsHCs reduced the mitochondrial membrane potential, whereas neither iAsIII nor AsFAs had an impact. Furthermore, neurotoxic mechanisms were investigated by examining the neuronal network. Here, AsHCs massively disturbed the neuronal network and induced apoptotic effects, while iAsIII and AsFAs showed comparatively lesser effects. Taking into account the substantial in vitro neurotoxic potential of the AsHCs and the fact that they could transfer across the physiological barriers of the brain, a neurotoxic potential in vivo for the AsHCs cannot be excluded and needs to be urgently characterized.
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Affiliation(s)
- Barbara Witt
- Institute of Nutritional Science, University of Potsdam, Arthur-Scheunert-Allee 114-116, 14558, Nuthetal, Germany
| | - Sören Meyer
- Institute of Nutritional Science, University of Potsdam, Arthur-Scheunert-Allee 114-116, 14558, Nuthetal, Germany
| | - Franziska Ebert
- Institute of Nutritional Science, University of Potsdam, Arthur-Scheunert-Allee 114-116, 14558, Nuthetal, Germany
| | - Kevin A Francesconi
- Institute of Chemistry-Analytical Chemistry, University of Graz, Universitaetsplatz 1, 8010, Graz, Austria
| | - Tanja Schwerdtle
- Institute of Nutritional Science, University of Potsdam, Arthur-Scheunert-Allee 114-116, 14558, Nuthetal, Germany.
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Xue XM, Ye J, Raber G, Francesconi KA, Li G, Gao H, Yan Y, Rensing C, Zhu YG. Arsenic Methyltransferase is Involved in Arsenosugar Biosynthesis by Providing DMA. Environ Sci Technol 2017; 51:1224-1230. [PMID: 28076949 DOI: 10.1021/acs.est.6b04952] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Arsenic is an ubiquitous toxic element in the environment, and organisms have evolved different arsenic detoxification strategies. Studies on arsenic biotransformation mechanisms have mainly focused on arsenate (As(V)) reduction, arsenite (As(III)) oxidation, and arsenic methylation; little is known, however, about the pathway for the biosynthesis of arsenosugars, which are significant arsenic transformation products. Here, the involvement of As(III) S-Adenosylmethionine methyltransferase (ArsM) in arsenosugar synthesis is demonstrated for the first time. Synechocystis sp. PCC 6803 incubated with As(III) or monomethylarsonic acid (MMA(V)) produced dimethylarsinic acid (DMA(V)) and arsenosugars, as determined by high performance liquid chromatography-inductively coupled plasma mass spectrometry (HPLC/ICPMS). Arsenosugars were also detected in the cells when they were exposed to DMA(V). A mutant strain Synechocystis ΔarsM was constructed by disrupting arsM in Synechocystis sp. PCC 6803. Methylation of arsenic species was not observed in the mutant strain after exposure to arsenite or MMA(V); when Synechocystis ΔarsM was incubated with DMA(V), arsenosugars were detected in the cells. These results suggest that ArsM is a required enzyme for the methylation of inorganic arsenicals, but not required for the synthesis of arsenosugars from DMA, and that DMA is the precursor of arsenosugar biosynthesis. The findings will stimulate more studies on the biosynthesis of complex organoarsenicals, and lead to a better understanding of the bioavailability and function of the organoarsenicals in biological systems.
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Affiliation(s)
- Xi-Mei Xue
- Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences , Xiamen 361021, China
| | - Jun Ye
- Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences , Xiamen 361021, China
| | - Georg Raber
- Institute of Chemistry, University of Graz , Graz, Austria
| | | | - Gang Li
- Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences , Xiamen 361021, China
| | - Hong Gao
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences , Wuhan, China
| | - Yu Yan
- Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences , Xiamen 361021, China
| | - Christopher Rensing
- College of Resources and Environment, Fujian Agriculture and Forestry University , Fuzhou, China
| | - Yong-Guan Zhu
- Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences , Xiamen 361021, China
- State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences , Beijing, China
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Balakrishnan P, Vaidya D, Franceschini N, Voruganti VS, Gribble MO, Haack K, Laston S, Umans JG, Francesconi KA, Goessler W, North KE, Lee E, Yracheta J, Best LG, MacCluer JW, Kent J, Cole SA, Navas-Acien A. Association of Cardiometabolic Genes with Arsenic Metabolism Biomarkers in American Indian Communities: The Strong Heart Family Study (SHFS). Environ Health Perspect 2017; 125:15-22. [PMID: 27352405 PMCID: PMC5226702 DOI: 10.1289/ehp251] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/02/2015] [Revised: 03/27/2016] [Accepted: 05/19/2016] [Indexed: 05/18/2023]
Abstract
BACKGROUND Metabolism of inorganic arsenic (iAs) is subject to inter-individual variability, which is explained partly by genetic determinants. OBJECTIVES We investigated the association of genetic variants with arsenic species and principal components of arsenic species in the Strong Heart Family Study (SHFS). METHODS We examined variants previously associated with cardiometabolic traits (~ 200,000 from Illumina Cardio MetaboChip) or arsenic metabolism and toxicity (670) among 2,428 American Indian participants in the SHFS. Urine arsenic species were measured by high performance liquid chromatography-inductively coupled plasma mass spectrometry (HPLC-ICP-MS), and percent arsenic species [iAs, monomethylarsonate (MMA), and dimethylarsinate (DMA), divided by their sum × 100] were logit transformed. We created two orthogonal principal components that summarized iAs, MMA, and DMA and were also phenotypes for genetic analyses. Linear regression was performed for each phenotype, dependent on allele dosage of the variant. Models accounted for familial relatedness and were adjusted for age, sex, total arsenic levels, and population stratification. Single nucleotide polymorphism (SNP) associations were stratified by study site and were meta-analyzed. Bonferroni correction was used to account for multiple testing. RESULTS Variants at 10q24 were statistically significant for all percent arsenic species and principal components of arsenic species. The index SNP for iAs%, MMA%, and DMA% (rs12768205) and for the principal components (rs3740394, rs3740393) were located near AS3MT, whose gene product catalyzes methylation of iAs to MMA and DMA. Among the candidate arsenic variant associations, functional SNPs in AS3MT and 10q24 were most significant (p < 9.33 × 10-5). CONCLUSIONS This hypothesis-driven association study supports the role of common variants in arsenic metabolism, particularly AS3MT and 10q24. Citation: Balakrishnan P, Vaidya D, Franceschini N, Voruganti VS, Gribble MO, Haack K, Laston S, Umans JG, Francesconi KA, Goessler W, North KE, Lee E, Yracheta J, Best LG, MacCluer JW, Kent J Jr., Cole SA, Navas-Acien A. 2017. Association of cardiometabolic genes with arsenic metabolism biomarkers in American Indian communities: the Strong Heart Family Study (SHFS). Environ Health Perspect 125:15-22; http://dx.doi.org/10.1289/EHP251.
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Affiliation(s)
- Poojitha Balakrishnan
- Department of Environmental Health Sciences, and
- Department of Epidemiology, Johns Hopkins University Bloomberg School of Public Health, Baltimore, Maryland, USA
- The Welch Center for Prevention, Epidemiology, and Clinical Research, Johns Hopkins Medical Institutions, Baltimore, Maryland, USA
| | - Dhananjay Vaidya
- Department of Epidemiology, Johns Hopkins University Bloomberg School of Public Health, Baltimore, Maryland, USA
- Clinical and Translational Research, Johns Hopkins School of Medicine, Baltimore, Maryland, USA
| | | | - V. Saroja Voruganti
- Department of Nutrition, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
- UNC Nutrition Research Institute, University of North Carolina at Chapel Hill, Kannapolis, North Carolina, USA
| | - Matthew O. Gribble
- Department of Environmental Health, Rollins School of Public Health, Emory University, Atlanta, Georgia, USA
| | - Karin Haack
- Department of Genetics, Texas Biomedical Research Institute, San Antonio, Texas, USA
| | - Sandra Laston
- South Texas Diabetes and Obesity Institute, University of Texas Rio Grande Valley, Brownsville, Texas, USA
| | - Jason G. Umans
- MedStar Health Research Institute, Hyattsville, Maryland, USA
- Georgetown and Howard Universities Center for Clinical and Translational Science, Washington, DC, USA
| | | | - Walter Goessler
- Institute of Chemistry - Analytical Chemistry, University of Graz, Austria
| | | | - Elisa Lee
- Center for American Indian Health Research, College of Public Health, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma, USA
| | - Joseph Yracheta
- Missouri Breaks Industries Research, Inc., Timber Lake, South Dakota, USA
| | - Lyle G. Best
- Missouri Breaks Industries Research, Inc., Timber Lake, South Dakota, USA
| | - Jean W. MacCluer
- Department of Genetics, Texas Biomedical Research Institute, San Antonio, Texas, USA
| | - Jack Kent
- Department of Genetics, Texas Biomedical Research Institute, San Antonio, Texas, USA
| | - Shelley A. Cole
- Department of Genetics, Texas Biomedical Research Institute, San Antonio, Texas, USA
| | - Ana Navas-Acien
- Department of Environmental Health Sciences, and
- Department of Epidemiology, Johns Hopkins University Bloomberg School of Public Health, Baltimore, Maryland, USA
- The Welch Center for Prevention, Epidemiology, and Clinical Research, Johns Hopkins Medical Institutions, Baltimore, Maryland, USA
- Department of Oncology, Johns Hopkins School of Medicine, Baltimore, Maryland, USA
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Olmedo P, Grau-Perez M, Fretts A, Tellez-Plaza M, Gil F, Yeh F, Umans JG, Francesconi KA, Goessler W, Franceschini N, Lee ET, Best LG, Cole SA, Howard BV, Navas-Acien A. Dietary determinants of cadmium exposure in the Strong Heart Family Study. Food Chem Toxicol 2016; 100:239-246. [PMID: 28012896 DOI: 10.1016/j.fct.2016.12.015] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [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: 08/29/2016] [Revised: 12/09/2016] [Accepted: 12/13/2016] [Indexed: 11/17/2022]
Abstract
Urinary cadmium (Cd) concentrations in the Strong Heart Family Study (SHFS) participants are higher than in the general US population. This difference is unlikely to be related to tobacco smoking. We evaluated the association of consumption of processed meats and other dietary products with urinary Cd concentrations in the SHFS, a family-based study conducted in American Indian communities. We included 1725 participants with urine Cd concentrations (standardized to urine creatinine) and food frequency questionnaire data grouped in 24 categories, including processed meat. Median (IQR) urinary Cd concentrations were 0.42 (0.20-0.85) μg/g creatinine. The age, sex, smoking, education, center, body mass index, and total kcal adjusted geometric mean ratio (GMR) (95%CI) of urinary cadmium concentrations per IQR increase in each dietary category was 1.16 (1.04-1.29) for processed meat, 1.10 (1.00-1.21) for fries and chips, 0.87 (0.80-0.95) for dairy products, and 0.89 (0.82-0.97) for fruit juices. The results remained similar after further adjustment for the dietary categories associated with urinary Cd in the previous model except for fries and chips, which was no longer statistically significant. These findings revealed the potential importance of processed meat products as a dietary source of cadmium.
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Affiliation(s)
- Pablo Olmedo
- Department of Environmental Health Sciences, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA; Department of Environmental Health Sciences, Mailman School of Public Health, Columbia University, New York, NY, USA.
| | - Maria Grau-Perez
- Department of Environmental Health Sciences, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA; Department of Environmental Health Sciences, Mailman School of Public Health, Columbia University, New York, NY, USA
| | - Amanda Fretts
- Department of Epidemiology, University of Washington School of Public Health, Seattle, WA, USA
| | - Maria Tellez-Plaza
- Department of Environmental Health Sciences, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA; Fundación de Investigación Hospital Clínico de Valencia INCLIVA, Valencia, Spain
| | - Fernando Gil
- Department of Legal Medicine and Toxicology, School of Medicine, University of Granada, Spain
| | - Fawn Yeh
- Center for American Indian Health Research, College of Public Health, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
| | - Jason G Umans
- Department of Medicine, Georgetown University Medical Center, Washington, DC, USA
| | | | - Walter Goessler
- Institute of Chemistry -Analytical Chemistry, University of Graz, Austria
| | - Nora Franceschini
- Department of Epidemiology, University of North Carolina Gillings School of Global Public Health, Chapel Hill, NC, USA
| | - Elisa T Lee
- Center for American Indian Health Research, College of Public Health, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
| | - Lyle G Best
- Missouri Breaks Industries Research, Inc, Timber Lake, SD, USA
| | - Shelley A Cole
- Department of Genetics, Texas Biomedical Research Institute, San Antonio, TX, USA
| | | | - Ana Navas-Acien
- Department of Environmental Health Sciences, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA; Department of Environmental Health Sciences, Mailman School of Public Health, Columbia University, New York, NY, USA; Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA; Welch Center for Prevention, Epidemiology and Clinical Research, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
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Newman JD, Navas-Acien A, Kuo CC, Guallar E, Howard BV, Fabsitz RR, Devereux RB, Umans JG, Francesconi KA, Goessler W, Best LT, Tellez-Plaza M. Peripheral Arterial Disease and Its Association With Arsenic Exposure and Metabolism in the Strong Heart Study. Am J Epidemiol 2016; 184:806-817. [PMID: 27810857 DOI: 10.1093/aje/kww002] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2015] [Accepted: 01/06/2016] [Indexed: 12/25/2022] Open
Abstract
At high levels, inorganic arsenic exposure is linked to peripheral arterial disease (PAD) and cardiovascular disease. To our knowledge, no prior study has evaluated the association between low-to-moderate arsenic exposure and incident PAD by ankle brachial index (ABI). We evaluated this relationship in the Strong Heart Study, a large population-based cohort study of American Indian communities. A total of 2,977 and 2,966 PAD-free participants who were aged 45-74 years in 1989-1991 were reexamined in 1993-1995 and 1997-1999, respectively, for incident PAD defined as either ABI <0.9 or ABI >1.4. A total of 286 and 206 incident PAD cases were identified for ABI <0.9 and ABI >1.4, respectively. The sum of inorganic and methylated urinary arsenic species (∑As) at baseline was used as a biomarker of long-term exposure. Comparing the highest tertile of ∑As with the lowest, the adjusted hazard ratios were 0.57 (95% confidence interval (CI): 0.32, 1.01) for ABI <0.9 and 2.24 (95% CI: 1.01, 4.32) for ABI >1.4. Increased arsenic methylation (as percent dimethylarsinate) was associated with a 2-fold increased risk of ABI >1.4 (hazard ratio = 2.04, 95% CI: 1.02, 3.41). Long-term low-to-moderate ∑As and increased arsenic methylation were associated with ABI >1.4 but not with ABI <0.9. Further studies are needed to clarify whether diabetes and enhanced arsenic metabolism increase susceptibility to the vasculotoxic effects of arsenic exposure.
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Ebert F, Meyer S, Leffers L, Raber G, Francesconi KA, Schwerdtle T. Toxicological characterisation of a thio-arsenosugar-glycerol in human cells. J Trace Elem Med Biol 2016; 38:150-156. [PMID: 27160015 DOI: 10.1016/j.jtemb.2016.04.013] [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] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/30/2016] [Revised: 04/15/2016] [Accepted: 04/18/2016] [Indexed: 01/08/2023]
Abstract
Arsenosugars are water-soluble arsenic species predominant in marine algae and other seafood including mussels and oysters. They typically occur at levels ranging from 2 to 50mg arsenic/kg dry weight. Most of the arsenosugars contain arsenic as a dimethylarsinoyl group (Me2As(O)-), commonly referred to as the oxo forms, but thio analogues have also been identified in marine organisms and as metabolic products of oxo-arsenosugars. So far, no data regarding toxicity and toxicokinetics of thio-arsenosugars are available. This in vitro-based study indicates that thio-dimethylarsenosugar-glycerol exerts neither pronounced cytotoxicity nor genotoxicity even though this arsenical was bioavailable to human hepatic (HepG2) and urothelial (UROtsa) cells. Experiments with the Caco-2 intestinal barrier model mimicking human absorption indicate for the thio-arsenosugar-glycerol higher intestinal bioavailability as compared to the oxo-arsenosugars. Nevertheless, absorption estimates were much lower in comparison to other arsenicals including arsenite and arsenic-containing hydrocarbons. Arsenic speciation in cell lysates revealed that HepG2 cells are able to metabolise the thio-arsenosugar-glycerol to some extent to dimethylarsinic acid (DMA). These first in vitro data cannot fully exclude risks to human health related to the presence of thio-arsenosugars in food.
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Affiliation(s)
- Franziska Ebert
- Institute of Nutritional Science, University of Potsdam, Arthur-Scheunert-Allee 114-116, 14558 Nuthetal, Germany
| | - Sören Meyer
- Institute of Nutritional Science, University of Potsdam, Arthur-Scheunert-Allee 114-116, 14558 Nuthetal, Germany; Graduate School of Chemistry, University of Muenster, Wilhelm-Klemm-Straße 10, 48149 Muenster, Germany
| | - Larissa Leffers
- Institute of Nutritional Science, University of Potsdam, Arthur-Scheunert-Allee 114-116, 14558 Nuthetal, Germany; Graduate School of Chemistry, University of Muenster, Wilhelm-Klemm-Straße 10, 48149 Muenster, Germany
| | - Georg Raber
- Institute of Chemistry-Analytical Chemistry, University of Graz, NAWI Graz, Universitaetsplatz 1, Graz, Austria
| | - Kevin A Francesconi
- Institute of Chemistry-Analytical Chemistry, University of Graz, NAWI Graz, Universitaetsplatz 1, Graz, Austria
| | - Tanja Schwerdtle
- Institute of Nutritional Science, University of Potsdam, Arthur-Scheunert-Allee 114-116, 14558 Nuthetal, Germany.
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Khan M, Francesconi KA. Preliminary studies on the stability of arsenolipids: Implications for sample handling and analysis. J Environ Sci (China) 2016; 49:97-103. [PMID: 28007184 DOI: 10.1016/j.jes.2016.04.004] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [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: 03/24/2016] [Revised: 04/08/2016] [Accepted: 04/10/2016] [Indexed: 06/06/2023]
Abstract
Human health risk assessments concerning arsenic are now estimating exposure through food in addition to exposure through drinking water. Intrinsic to this assessment is sample handling and preparation that maintains the arsenic species in the form that they occur in foods. We investigated the stability of three arsenolipids (two arsenic fatty acids, AsFA-362 and AsFA-388, and one arsenic hydrocarbon AsHC-332), common constituents of fish and algae, relevant to sample storage and transport, and to their preparation for quantitative measurements. The fate of the arsenolipids was followed by high performance liquid chromatography/electrospray triple quadruple mass spectrometry (HPLC/ESIMS) analyses. Storage of the compounds dry as pure compounds or mixed in fish oil at up to 60˚C did not result in significant changes to the compounds, although losses were observed by apparent adsorption onto the plastic walls of the polypropylene tubes. No losses occurred when the experiment was repeated with glass tubes. When the compounds were stored in ethanol for up to 15 days under acidic, neutral, or alkaline conditions (each at room temperature), no significant decomposition was observed, although esterification of the fatty acids occurred at low pH. The compounds were also stable during a sample preparation step involving passage through a small silica column. The results indicate that these typical arsenolipids are stable when stored in glass at temperatures up to 60˚C for at least 2 days, and that, consequently, samples of food or extracts thereof can be transported dry at ambient temperatures, i.e. without the need for cool conditions.
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Affiliation(s)
- Muslim Khan
- Institute of Chemistry-Analytical Chemistry, University of Graz, Universitaetsplatz 1, 8010 Graz, Austria
| | - Kevin A Francesconi
- Institute of Chemistry-Analytical Chemistry, University of Graz, Universitaetsplatz 1, 8010 Graz, Austria.
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48
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Jones MR, Tellez-Plaza M, Vaidya D, Grau M, Francesconi KA, Goessler W, Guallar E, Post WS, Kaufman JD, Navas-Acien A. Estimation of Inorganic Arsenic Exposure in Populations With Frequent Seafood Intake: Evidence From MESA and NHANES. Am J Epidemiol 2016; 184:590-602. [PMID: 27702745 DOI: 10.1093/aje/kww097] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2015] [Accepted: 04/11/2016] [Indexed: 01/13/2023] Open
Abstract
The sum of urinary inorganic arsenic (iAs) and methylated arsenic (monomethylarsonate and dimethylarsinate (DMA)) species is the main biomarker of iAs exposure. Assessing iAs exposure, however, is difficult in populations with moderate-to-high seafood intakes. In the present study, we used subsamples from the Multi-Ethnic Study of Atherosclerosis (2000-2002) (n = 310) and the 2003-2006 National Health and Nutrition Examination Survey (n = 1,175). We calibrated urinary concentrations of non-seafood-derived iAs, DMA, and methylarsonate, as well as the sum of inorganic and methylated arsenic species, in the Multi-Ethnic Study of Atherosclerosis and of DMA in the National Health and Nutrition Examination Survey by regressing their original concentrations by arsenobetaine and extracting model residuals. To confirm that calibrated biomarkers reflected iAs exposure but not seafood intake, we compared urinary arsenic concentrations by levels of seafood and rice intakes. Self-reported seafood intakes, estimated n-3 polyunsaturated fatty acid levels, and measured n-3 polyunsaturated fatty acid levels were positively associated with the original urinary arsenic biomarkers. Using the calibrated arsenic biomarkers, we found a marked attenuation of the associations with self-reported seafood intake and estimated or measured n-3 fatty acids, whereas associations with self-reported rice intake remained similar. Our residual-based method provides estimates of iAs exposure and metabolism for each participant that no longer reflect seafood intake and can facilitate research about low-to-moderate levels of iAs exposure in populations with high seafood intakes.
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49
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Krishnakumar PK, Qurban MA, Stiboller M, Nachman KE, Joydas TV, Manikandan KP, Mushir SA, Francesconi KA. Arsenic and arsenic species in shellfish and finfish from the western Arabian Gulf and consumer health risk assessment. Sci Total Environ 2016; 566-567:1235-1244. [PMID: 27277209 DOI: 10.1016/j.scitotenv.2016.05.180] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [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: 03/28/2016] [Revised: 05/17/2016] [Accepted: 05/25/2016] [Indexed: 05/03/2023]
Abstract
This study reports the levels of total arsenic and arsenic species in marine biota such as clams (Meretrix meretrix; N=21) and pearl oyster (Pinctada radiata; N=5) collected from nine costal sites in Jan 2014, and cuttlefish (Sepia pharaonis; N=8), shrimp (Penaeus semisulcatus; N=1), and seven commercially important finfish species (N=23) collected during Apr-May 2013 from seven offshore sites in the western Arabian Gulf. Total As and As species such as dimethylarsinic acid (DMA), arsenobetaine (AB), trimethylarsine oxide (TMAO), arsenocholine (AC), tetramethylarsonium ion (Tetra), arsenosugar-glycerol (As-Gly) and inorganic As (iAs) were determined by using ICPMS and HPLC/ICPMS. In bivalves, the total As concentrations ranged from 16 to 118mg/kg dry mass; the toxic iAs fraction contributed on average less than 0.8% of the total As, while the nontoxic AB fraction formed around 58%. Total As concentrations for the remaining seafood (cuttlefish, shrimp and finfish) ranged from 11 to 134mg/kg dry mass and the iAs and AB fractions contributed on average 0.03% and 81% respectively of the total As. There was no significant relationship between the tissue concentrations of total As and iAs in the samples. There was also no significant relationship between As levels in seafood and geographical location or salinity of the waters from which samples were collected. Based on our results, we recommend introducing a maximum permissible level of arsenic in seafood from the Gulf based on iAs content rather than based on total As. Our analyses of cancer risks and non-cancer hazards identified non-negligible risks and the potential for hazards; the greatest risks were identified for expatriate consumers of bivalves and high-end consumers of seafood. Despite this, many uncertainties remain that would be best addressed by further analyses.
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Affiliation(s)
- Periyadan K Krishnakumar
- Center for Environment and Water, Research Institute, King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia.
| | - Mohammad A Qurban
- Center for Environment and Water, Research Institute, King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia
| | - Michael Stiboller
- Institute of Chemistry-Analytical Chemistry, NAWI Graz, University of Graz, A-8010 Graz, Austria
| | - Keeve E Nachman
- Johns Hopkins Bloomberg School of Public Health, Department of Environmental Health Sciences, Baltimore, MD, USA
| | - Thadickal V Joydas
- Center for Environment and Water, Research Institute, King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia
| | - Karuppasamy P Manikandan
- Center for Environment and Water, Research Institute, King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia
| | - Shemsi Ahsan Mushir
- Center for Environment and Water, Research Institute, King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia
| | - Kevin A Francesconi
- Institute of Chemistry-Analytical Chemistry, NAWI Graz, University of Graz, A-8010 Graz, Austria
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50
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Guttenberger N, Glabonjat RA, Jensen KB, Zangger K, Francesconi KA. Synthesis of two arsenic-containing cyclic ethers: model compounds for a novel group of naturally-occurring arsenolipids. Tetrahedron Lett 2016. [DOI: 10.1016/j.tetlet.2016.08.097] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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