1
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LeBlanc KL, Kumlung T, Suárez Priede A, Kumkrong P, Junvee T, Deawtong S, Bettmer J, Montes-Bayón M, Mester Z. Determination of selenium-containing species, including nanoparticles, in selenium-enriched Lingzhi mushrooms. Anal Bioanal Chem 2024; 416:2761-2772. [PMID: 37987766 PMCID: PMC11009765 DOI: 10.1007/s00216-023-05031-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Revised: 10/12/2023] [Accepted: 10/31/2023] [Indexed: 11/22/2023]
Abstract
Mushrooms are considered a valuable food source due to their high protein and fibre and low fat content, among the other health benefits of their consumption. Selenium is an essential nutrient and is renowned for its chemo-preventative properties. In this study, batches of selenium-enriched Lingzhi mushrooms were prepared by growing mycelium and fruit in substrates containing various concentrations of sodium selenite. The mushroom fruit accumulated low levels of selenium with selenomethionine being the most abundant form in all enriched samples. Conversely, the mycelium showed significant selenium accumulation but relatively low proportions of selenomethionine. The red colour of the selenium-enriched mycelia indicated the probable presence of selenium nanoparticles, which was confirmed by single-particle inductively coupled plasma-mass spectrometry. Mean particle diameters of 90-120 nm were observed, with size distributions of 60-250 nm. Additional analysis with transmission electron microscopy confirmed this size distribution and showed that the biogenic selenium nanoparticles were roughly spherical in shape and contained elemental selenium.
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Affiliation(s)
- Kelly L LeBlanc
- National Research Council Canada, 1200 Montreal Road, Ottawa, ON, Canada.
| | - Tantima Kumlung
- Thailand Institute of Scientific and Technological Research, 35 Moo 3, Klong 5, Khlong Luang, 12120, Pathum Thani, Thailand
| | - Andrés Suárez Priede
- Instituto de Investigación Sanitaria Del Principado de Asturias (ISPA), Department of Physical and Analytical Chemistry, Faculty of Chemistry, University of Oviedo, C/Julián Clavería 8, 33006, Oviedo, Spain
| | - Paramee Kumkrong
- National Research Council Canada, 1200 Montreal Road, Ottawa, ON, Canada
- Thailand Institute of Scientific and Technological Research, 35 Moo 3, Klong 5, Khlong Luang, 12120, Pathum Thani, Thailand
| | - Thippaya Junvee
- Thailand Institute of Scientific and Technological Research, 35 Moo 3, Klong 5, Khlong Luang, 12120, Pathum Thani, Thailand
| | - Suladda Deawtong
- Thailand Institute of Scientific and Technological Research, 35 Moo 3, Klong 5, Khlong Luang, 12120, Pathum Thani, Thailand
| | - Jörg Bettmer
- Instituto de Investigación Sanitaria Del Principado de Asturias (ISPA), Department of Physical and Analytical Chemistry, Faculty of Chemistry, University of Oviedo, C/Julián Clavería 8, 33006, Oviedo, Spain
| | - María Montes-Bayón
- Instituto de Investigación Sanitaria Del Principado de Asturias (ISPA), Department of Physical and Analytical Chemistry, Faculty of Chemistry, University of Oviedo, C/Julián Clavería 8, 33006, Oviedo, Spain
| | - Zoltan Mester
- National Research Council Canada, 1200 Montreal Road, Ottawa, ON, Canada
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2
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Liu XL. Streamlined Arsenolipid Identification via Direct Arsenic Detection Using RPLC-ESI-QTOF-MS with Collision-Induced Dissociation. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2024; 35:300-306. [PMID: 38147679 DOI: 10.1021/jasms.3c00367] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2023]
Abstract
Arsenolipids are organoarsenicals with a long aliphatic chain that have been identified in a wide array of marine organisms. Precise analysis of arsenolipids is crucial for evaluating their toxicity, ensuring food safety, monitoring the environment, and gaining insights into the evolution of arsenic biogeochemistry. However, the discovery of new arsenolipids is often impeded by existing analytical challenges, notably the need for multiple instruments, such as the combination of liquid chromatography electrospray ionization mass spectrometry (LC-ESI-MS) and inductively coupled plasma mass spectrometry (LC-ICP-MS). This study introduces a high-throughput untargeted analytical method on the basis of an unsophisticated instrumental configuration, LC-ESI-MS with collision-induced dissociation (CID) at 200 eV. This approach provides efficient dissociation of arsenic atoms from their precursor lipids and direct detection of the organic-bound arsenic as monatomic cations, As+. Application of this method has shown promise in rapidly characterizing arsenolipids in diverse samples, which has led to the discovery of a wide range of novel arsenolipids, including seven previously unidentified thioxoarsenolipids in ancient marine sediments.
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Affiliation(s)
- Xiao-Lei Liu
- School of Geosciences, University of Oklahoma, 100 E. Boyd Street, Norman, Oklahoma 73019, United States
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3
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Coniglio D, Ventura G, Calvano CD, Losito I, Cataldi TRI. Strategies for the analysis of arsenolipids in marine foods: A review. J Pharm Biomed Anal 2023; 235:115628. [PMID: 37579719 DOI: 10.1016/j.jpba.2023.115628] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Revised: 08/05/2023] [Accepted: 08/07/2023] [Indexed: 08/16/2023]
Abstract
Arsenic-containing lipids, also named arsenolipids (AsLs), are a group of organic compounds usually found in a variety of marine organisms such as fish, algae, shellfish, marine oils, and microorganisms. Numerous AsLs have been recognised so far, from simple compounds such as arsenic fatty acids (AsFAs), arsenic hydrocarbons (AsHCs), and trimethylarsenio fatty alcohols (TMAsFOHs) to more complex arsenic-containing species, of which arsenophospholipids (AsPLs) are a case in point. Mass spectrometry, both as inductively coupled plasma (ICP-MS) and liquid chromatography coupled by an electrospray source (LC-ESI-MS), was applied to organic arsenicals playing a key role in extending and refining the characterisation of arsenic-containing lipids in marine organisms. Herein, upon the introduction of a systematic notation for AsLs and a brief examination of their toxicity and biological role, the most relevant literature concerning the characterisation of AsLs in marine organisms, including edible ones, is reviewed. The use of both ICP-MS and ESI-MS coupled with reversed-phase liquid chromatography (RPLC) has brought significant advancements in the field. In the case of ESI-MS, the employment of negative polarity and tandem MS analyses has further enhanced these advancements. One notable development is the identification of the m/z 389.0 ion ([AsC10H19O9P]-) as a diagnostic product ion of AsPLs, which is obtained from the fragmentation of the deprotonated forms of AsPLs ([M - H]-). The pinpointing product ions offer the possibility of determining the identity and regiochemistry of AsPL side chains. Advanced MS-based analytical methods may contribute remarkably to the understanding of the chemical diversity characterising the metalloid As in natural organic compounds of marine organisms.
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Affiliation(s)
- Davide Coniglio
- Department of Chemistry, University of Bari Aldo Moro, via Orabona 4, 70126 Bari, Italy
| | - Giovanni Ventura
- Department of Chemistry, University of Bari Aldo Moro, via Orabona 4, 70126 Bari, Italy; Interdepartmental Research Center SMART, University of Bari Aldo Moro, via Orabona 4, 70126 Bari, Italy
| | - Cosima D Calvano
- Department of Chemistry, University of Bari Aldo Moro, via Orabona 4, 70126 Bari, Italy; Interdepartmental Research Center SMART, University of Bari Aldo Moro, via Orabona 4, 70126 Bari, Italy.
| | - Ilario Losito
- Department of Chemistry, University of Bari Aldo Moro, via Orabona 4, 70126 Bari, Italy; Interdepartmental Research Center SMART, University of Bari Aldo Moro, via Orabona 4, 70126 Bari, Italy
| | - Tommaso R I Cataldi
- Department of Chemistry, University of Bari Aldo Moro, via Orabona 4, 70126 Bari, Italy; Interdepartmental Research Center SMART, University of Bari Aldo Moro, via Orabona 4, 70126 Bari, Italy.
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4
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Hoy KS, Davydiuk T, Chen X, Lau C, Schofield JRM, Lu X, Graydon JA, Mitchell R, Reichert M, Le XC. Arsenic speciation in freshwater fish: challenges and research needs. FOOD QUALITY AND SAFETY 2023; 7:fyad032. [PMID: 37744965 PMCID: PMC10515374 DOI: 10.1093/fqsafe/fyad032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/25/2021] [Revised: 07/12/2023] [Indexed: 09/26/2023]
Abstract
Food and water are the main sources of human exposure to arsenic. It is important to determine arsenic species in food because the toxicities of arsenic vary greatly with its chemical speciation. Extensive research has focused on high concentrations of arsenic species in marine organisms. The concentrations of arsenic species in freshwater fish are much lower, and their determination presents analytical challenges. In this review, we summarize the current state of knowledge on arsenic speciation in freshwater fish and discuss challenges and research needs. Fish samples are typically homogenized, and arsenic species are extracted using water/methanol with the assistance of sonication and enzyme treatment. Arsenic species in the extracts are commonly separated using high-performance liquid chromatography (HPLC) and detected using inductively coupled plasma mass spectrometry (ICPMS). Electrospray ionization tandem mass spectrometry, used in combination with HPLC and ICPMS, provides complementary information for the identification and characterization of arsenic species. The methods and perspectives discussed in this review, covering sample preparation, chromatography separation, and mass spectrometry detection, are directed to arsenic speciation in freshwater fish and applicable to studies of other food items. Despite progress made in arsenic speciation analysis, a large fraction of the total arsenic in freshwater fish remains unidentified. It is challenging to identify and quantify arsenic species present in complex sample matrices at very low concentrations. Further research is needed to improve the extraction efficiency, chromatographic resolution, detection sensitivity, and characterization capability.
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Affiliation(s)
- Karen S Hoy
- Department of Chemistry, University of Alberta, Edmonton, Alberta, Canada
| | - Tetiana Davydiuk
- Department of Chemistry, University of Alberta, Edmonton, Alberta, Canada
| | - Xiaojian Chen
- Department of Chemistry, University of Alberta, Edmonton, Alberta, Canada
| | - Chester Lau
- Department of Chemistry, University of Alberta, Edmonton, Alberta, Canada
| | | | - Xiufen Lu
- Division of Analytical and Environmental Toxicology, Department of Laboratory Medicine and Pathology, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Alberta, Canada
| | | | - Ruth Mitchell
- Alberta Health, Health Protection Branch, Edmonton, Alberta, Canada
| | - Megan Reichert
- Alberta Health, Health Protection Branch, Edmonton, Alberta, Canada
| | - X Chris Le
- Department of Chemistry, University of Alberta, Edmonton, Alberta, Canada
- Division of Analytical and Environmental Toxicology, Department of Laboratory Medicine and Pathology, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Alberta, Canada
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5
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Procópio VA, Pereira RM, Lange CN, Freire BM, Batista BL. Chromium Speciation by HPLC-DAD/ICP-MS: Simultaneous Hyphenation of Analytical Techniques for Studies of Biomolecules. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2023; 20:4912. [PMID: 36981823 PMCID: PMC10049150 DOI: 10.3390/ijerph20064912] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Revised: 03/06/2023] [Accepted: 03/08/2023] [Indexed: 06/18/2023]
Abstract
The first element legislated adopting chemical speciation was chromium (Cr) for differentiation between the highly toxic Cr(VI) from the micronutrient Cr(III). Therefore, this work aimed to develop a new analytical method through the coupling of High-Performance Liquid Chromatography with Diode-Array Detection (HPLC-DAD) with inductively coupled plasma mass spectrometry (ICP-MS) to obtain molecular and elemental information simultaneously from a single sample injection. In the first step, a low-cost flow split made of acrylic was developed aiming at optimally directing the sample to the detectors, enabling the HPLC-DAD/ICP-MS coupling. After the extraction of Certified Reference Materials (CRM of natural water NIST1640a and sugar cane leaf agro FC_012017), the recoveries determined by ICP-MS were 99.7% and 85.4%, respectively. Then, the method of HPLC-DAD/ICP-MS was applied for real samples of the CRMs. The presence of possible biomolecules associated with Cr(III) and Cr(VI) species was evaluated, with the simultaneous response detection of molecular (DAD) and elementary (ICP-MS) detectors. Potential biomolecules were observed during the monitoring of Cr(VI) and Cr(III) in sugar cane leaves, water samples and a supplement of Cr picolinate. Finally, the article also discusses the potential of the technique applied to biomolecules containing other associated elements and the need of more bioanalytical methods to understand the presence of trace elements in biomolecules.
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6
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Tibon J, Amlund H, Gomez-Delgado AI, Berntssen MHG, Silva MS, Wiech M, Sloth JJ, Sele V. Arsenic species in mesopelagic organisms and their fate during aquafeed processing. CHEMOSPHERE 2022; 302:134906. [PMID: 35561763 DOI: 10.1016/j.chemosphere.2022.134906] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/17/2022] [Revised: 04/26/2022] [Accepted: 05/06/2022] [Indexed: 06/15/2023]
Abstract
A responsible harvest of mesopelagic species as aquafeed ingredients has the potential to address the United Nations Sustainable Development Goal 14, which calls for sustainable use of marine resources. Prior to utilization, the levels of undesirable substances need to be examined, and earlier studies on mesopelagic species have reported on total arsenic (As) content. However, the total As content does not give a complete basis for risk assessment since As can occur in different chemical species with varying toxicity. In this work, As speciation was conducted in single-species samples of the five most abundant mesopelagic organisms in Norwegian fjords. In addition, As species were studied in mesopelagic mixed biomass and in the resulting oil and meal feed ingredients after lab-scale feed processing. Water-soluble As species were determined based on ion-exchange high-performance liquid chromatography coupled to inductively coupled plasma mass spectrometry (HPLC-ICP-MS). This was supplemented by extracting arsenolipids (AsLipids) and determining total As in this fraction. The non-toxic arsenobetaine (AB) was the dominant form in mesopelagic crustaceans and fish species, accounting for approximately 70% and 50% of total As, respectively. Other water-soluble species were present in minor fractions, including carcinogenic inorganic As, which, in most samples, was below limit of quantification. The fish species had a higher proportion of AsLipids, approximately 35% of total As, compared to crustaceans which contained 20% on average. The feed processing simulation revealed generally low levels of water-soluble As species besides AB, but considerable fractions of potentially toxic AsLipids were found in the biomass, and transferred to the mesopelagic meal and oil. This study is the first to report occurrence data of at least 12 As species in mesopelagic organisms, thereby providing valuable information for future risk assessments on the feasibility of harnessing mesopelagic biomass as feed ingredients.
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Affiliation(s)
- Jojo Tibon
- Institute of Marine Research, P.O. Box 1870 Nordnes, NO-5817 Bergen, Norway; National Food Institute, Technical University of Denmark, Kemitorvet, Building 201, DK-2800 Kgs. Lyngby, Denmark
| | - Heidi Amlund
- National Food Institute, Technical University of Denmark, Kemitorvet, Building 201, DK-2800 Kgs. Lyngby, Denmark
| | | | - Marc H G Berntssen
- Institute of Marine Research, P.O. Box 1870 Nordnes, NO-5817 Bergen, Norway
| | - Marta S Silva
- Institute of Marine Research, P.O. Box 1870 Nordnes, NO-5817 Bergen, Norway
| | - Martin Wiech
- Institute of Marine Research, P.O. Box 1870 Nordnes, NO-5817 Bergen, Norway
| | - Jens J Sloth
- Institute of Marine Research, P.O. Box 1870 Nordnes, NO-5817 Bergen, Norway; National Food Institute, Technical University of Denmark, Kemitorvet, Building 201, DK-2800 Kgs. Lyngby, Denmark
| | - Veronika Sele
- Institute of Marine Research, P.O. Box 1870 Nordnes, NO-5817 Bergen, Norway.
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7
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Lorenc W, Hanć A, Sajnóg A, Barałkiewicz D. LC/ICP-MS AND COMPLEMENTARY TECHNIQUES IN BESPOKE AND NONTARGETED SPECIATION ANALYSIS OF ELEMENTS IN FOOD SAMPLES. MASS SPECTROMETRY REVIEWS 2022; 41:32-50. [PMID: 32997814 DOI: 10.1002/mas.21662] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/06/2020] [Revised: 08/31/2020] [Accepted: 09/15/2020] [Indexed: 06/11/2023]
Abstract
Chemical elements speciation analysis of food samples has been among the most important scientific topics over the last decades. Food samples are comprised of high variety of chemical compounds, from which many can interact with metals and metalloids, forming complex elemental species with various influence on the human body. It is particularly important not only to determine the amount of certain chemical element in food sample but also to identify the form in which given element occurs in given sample. Employment of bespoke and nontargeted speciation methods, with the use of liquid chromatography inductively coupled plasma mass spectrometry (LC/ICP-MS) and complementary techniques, provides more complete picture on the metals and metalloids speciation in food. This review discusses issues concerning speciation analysis of metals and metalloids in food samples with the use of LC/ICP-MS as a leading technique in elemental speciation nowadays and a complimentary technique intended for their identification. © 2020 John Wiley & Sons Ltd. Mass Spec Rev.
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Affiliation(s)
- Wiktor Lorenc
- Department of Trace Analysis, Faculty of Chemistry, Adam Mickiewicz University, Poznań, 8 Uniwersytetu Poznańskiego Street, Poznan, 61-614, Poland
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8
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Galván AE, Paul NP, Chen J, Yoshinaga-Sakurai K, Utturkar SM, Rosen BP, Yoshinaga M. Identification of the Biosynthetic Gene Cluster for the Organoarsenical Antibiotic Arsinothricin. Microbiol Spectr 2021; 9:e0050221. [PMID: 34378964 PMCID: PMC8552651 DOI: 10.1128/spectrum.00502-21] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2021] [Accepted: 07/15/2021] [Indexed: 01/11/2023] Open
Abstract
The soil bacterium Burkholderia gladioli GSRB05 produces the natural compound arsinothricin [2-amino-4-(hydroxymethylarsinoyl) butanoate] (AST), which has been demonstrated to be a broad-spectrum antibiotic. To identify the genes responsible for AST biosynthesis, a draft genome sequence of B. gladioli GSRB05 was constructed. Three genes, arsQML, in an arsenic resistance operon were found to be a biosynthetic gene cluster responsible for synthesis of AST and its precursor, hydroxyarsinothricin [2-amino-4-(dihydroxyarsinoyl) butanoate] (AST-OH). The arsL gene product is a noncanonical radical S-adenosylmethionine (SAM) enzyme that is predicted to transfer the 3-amino-3-carboxypropyl (ACP) group from SAM to the arsenic atom in inorganic arsenite, forming AST-OH, which is methylated by the arsM gene product, a SAM methyltransferase, to produce AST. Finally, the arsQ gene product is an efflux permease that extrudes AST from the cells, a common final step in antibiotic-producing bacteria. Elucidation of the biosynthetic gene cluster for this novel arsenic-containing antibiotic adds an important new tool for continuation of the antibiotic era. IMPORTANCE Antimicrobial resistance is an emerging global public health crisis, calling for urgent development of novel potent antibiotics. We propose that arsinothricin and related arsenic-containing compounds may be the progenitors of a new class of antibiotics to extend our antibiotic era. Here, we report identification of the biosynthetic gene cluster for arsinothricin and demonstrate that only three genes, two of which are novel, are required for the biosynthesis and transport of arsinothricin, in contrast to the phosphonate counterpart, phosphinothricin, which requires over 20 genes. Our discoveries will provide insight for the development of more effective organoarsenical antibiotics and illustrate the previously unknown complexity of the arsenic biogeochemical cycle, as well as bring new perspective to environmental arsenic biochemistry.
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Affiliation(s)
- Adriana E. Galván
- Department of Cellular Biology and Pharmacology, Florida International University, Herbert Wertheim College of Medicine, Miami, Florida, USA
| | - Ngozi P. Paul
- Department of Cellular Biology and Pharmacology, Florida International University, Herbert Wertheim College of Medicine, Miami, Florida, USA
| | - Jian Chen
- Department of Cellular Biology and Pharmacology, Florida International University, Herbert Wertheim College of Medicine, Miami, Florida, USA
| | - Kunie Yoshinaga-Sakurai
- Department of Cellular Biology and Pharmacology, Florida International University, Herbert Wertheim College of Medicine, Miami, Florida, USA
| | - Sagar M. Utturkar
- Purdue University Center for Cancer Research, Purdue University, West Lafayette, Indiana, USA
| | - Barry P. Rosen
- Department of Cellular Biology and Pharmacology, Florida International University, Herbert Wertheim College of Medicine, Miami, Florida, USA
| | - Masafumi Yoshinaga
- Department of Cellular Biology and Pharmacology, Florida International University, Herbert Wertheim College of Medicine, Miami, Florida, USA
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9
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Yang HS, LaFrance DR, Hao Y. Elemental Testing Using Inductively Coupled Plasma Mass Spectrometry in Clinical Laboratories. Am J Clin Pathol 2021; 156:167-175. [PMID: 33978166 DOI: 10.1093/ajcp/aqab013] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
OBJECTIVES This review aims to describe the principles underlying different types of inductively coupled plasma mass spectrometry (ICP-MS), and major technical advancements that reduce spectral interferences, as well as their suitability and wide applications in clinical laboratories. METHODS A literature survey was performed to review the technical aspects of ICP-MS, ICP-MS/MS, high-resolution ICP-MS, and their applications in disease diagnosis and monitoring. RESULTS Compared to the atomic absorption spectrometry and ICP-optical emission spectrometry, ICP-MS has advantages including improved precision, sensitivity and accuracy, wide linear dynamic range, multielement measurement capability, and ability to perform isotopic analysis. Technical advancements, such as collision/reaction cells, triple quadrupole ICP-MS, and sector-field ICP-MS, have been introduced to improve resolving power and reduce interferences. Cases are discussed that highlight the clinical applications of ICP-MS including determination of toxic elements, quantification of nutritional elements, monitoring elemental deficiency in metabolic disease, and multielement analysis. CONCLUSIONS This review provides insight on the strategies of elemental analysis in clinical laboratories and demonstrates current and emerging clinical applications of ICP-MS.
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Affiliation(s)
- He S Yang
- Department of Pathology and Laboratory Medicine, Weill Cornell Medicine, New York, NY, USA
- NewYork Presbyterian Hospital, Weill Cornell Medical Campus, New York, NY, USA
| | | | - Ying Hao
- Department of Pathology and Laboratory Medicine, Weill Cornell Medicine, New York, NY, USA
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10
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LeBlanc KL, Mester Z. Compilation of selenium metabolite data in selenized yeasts. Metallomics 2021; 13:6307519. [PMID: 34156080 DOI: 10.1093/mtomcs/mfab031] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2020] [Accepted: 04/30/2021] [Indexed: 11/12/2022]
Abstract
Selenium-enriched yeast has long been recognized as an important nutritional source of selenium and studies have suggested that supplementation with this material provides chemo-preventative benefits beyond those observed for selenomethionine supplementation, despite the fact that selenomethionine accounts for 60-84% of the total selenium in selenized yeasts. There is much ongoing research into the characterization of the species comprising the remaining 16-40% of the selenium, with nearly 100 unique selenium-containing metabolites identified in aqueous extracts of selenized yeasts (Saccharomyces cerevisiae). Herein, we discuss the analytical approaches involved in the identification and quantification of these metabolites, and present a recently created online database (DOI: 10.4224/40001921) of reported selenium species along with chemical structures and unique mass spectral features.
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Affiliation(s)
- Kelly L LeBlanc
- National Research Council Canada, 1200 Montreal Road, Ottawa, Ontario, Canada
| | - Zoltán Mester
- National Research Council Canada, 1200 Montreal Road, Ottawa, Ontario, Canada
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11
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Liu Q, Huang C, Li W, Fang Z, Le XC. Discovery and Identification of Arsenolipids Using a Precursor-Finder Strategy and Data-Independent Mass Spectrometry. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2021; 55:3836-3844. [PMID: 33667084 PMCID: PMC8009509 DOI: 10.1021/acs.est.0c07175] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
Arsenolipids are a class of lipid-soluble arsenic species. They are present in seafoods and show high potentials of cytotoxicity and neurotoxicity. Hindered by traditional low-throughput analytical techniques, the characterization of arsenolipids is far from complete. Here, we report on a sensitive and high-throughput screening method for arsenolipids in krill oil, tuna fillets, hairtail heads, and kelp. We demonstrate the detection and identification of 23 arsenolipids, including novel arsenic-containing fatty acids (AsFAs), hydroxylated AsFAs, arsenic-containing hydrocarbons (AsHCs), hydroxylated AsHCs, thiolated trimethylarsinic acids, and arsenic-containing lysophosphatidylcholines not previously reported. The new method incorporated precursor ion scan (PIS) into data-independent acquisition. High-performance liquid chromatography (HPLC) electrospray ionization quadrupole time-of-flight mass spectrometry (ESI-qToF-MS) was used to perform the sequential window acquisition of all theoretical spectra (SWATH). Comprehensive HPLC-MS and MS/MS data were further processed using a fragment-guided chromatographic computational program Precursorfinder developed here. Precursorfinder achieved efficient peak-picking, retention time comparison, hierarchical clustering, and wavelet coherence calculations to assemble fragment features with their target precursors. The identification of arsenolipids was supported by coeluting the HPLC-MS peaks detected with the characteristic fragments of arsenolipids. Method validation using available arsenic standards and the successful identification of previously unknown arsenolipids in seafood samples demonstrated the applicability of the method for environmental research.
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Affiliation(s)
- Qingqing Liu
- College
of Resources and Environment, Southwest
University, Tiansheng Road No.2, Beibei, Chongqing 400716, China
- Key
Laboratory of Luminescent and Real-Time Analytical System (Southwest
University), Chongqing Science and Technology Bureau, College of Pharmaceutical
Sciences, Southwest University, Chongqing 400715, China
| | - Chengzhi Huang
- Key
Laboratory of Luminescent and Real-Time Analytical System (Southwest
University), Chongqing Science and Technology Bureau, College of Pharmaceutical
Sciences, Southwest University, Chongqing 400715, China
| | - Wenhui Li
- College
of Electronic and Information Engineering, Southwest University, Tiansheng Road No.2, Beibei, Chongqing 400715, China
| | - Zhenzheng Fang
- College
of Resources and Environment, Southwest
University, Tiansheng Road No.2, Beibei, Chongqing 400716, China
| | - X. Chris Le
- Department
of Laboratory Medicine and Pathology, Faculty of Medicine and Dentistry, University of Alberta, 10-102 Clinical Sciences Building, Edmonton, Alberta T6G 2G3, Canada
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12
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Gajdosechova Z, Palmer CH, Dave D, Jiao G, Zhao Y, Tan Z, Chisholm J, Zhang J, Stefanova R, Hossain A, Mester Z. Arsenic speciation in sea cucumbers: Identification and quantitation of water-extractable species. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2020; 266:115190. [PMID: 32688077 DOI: 10.1016/j.envpol.2020.115190] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Revised: 06/30/2020] [Accepted: 07/05/2020] [Indexed: 06/11/2023]
Abstract
With the constant quest for new sources of superfoods to supplement the largely nutrient deficient diet of the modern society, sea cucumbers are gaining increasing popularity. Three species of sea cucumbers, Cucumaria frondosa, Apostichopus californicus and Apostichopusjaponicus were collected from three geographical regions, Atlantic and Pacific coast of Canada and Yellow sea/ East China sea in China, respectively. These organisms were sectioned into parts (body wall, tentacles, internal organ, skin and muscle) and analysed for total arsenic (As) by inductively coupled plasma mass spectrometry (ICP-MS) and As species by high-performance liquid chromatography (HPLC) coupled to ICP-MS. Normal and reversed sequential extractions were optimised to address As distribution between lipids (polar and non-polar) and water-extractable fractions. Two extraction methods for water-extractable As were compared in terms of the number and the amount of extracted species. The results revealed that total As concentration and As species distribution varies significantly between sea cucumbers species. Total As in studied body parts ranged between 2.8 ± 0.52 and 7.9 ± 1.2 mg kg-1, with an exception of the muscle tissue of A. californicus, where it reached to 36 ± 3.5 mg kg-1. Arsenobetaine (AsB) was the most abundant As species in A. californicus and A.japonicus, however, inorganic As represented over 70% of total recovered As in the body parts of C. frondosa. Arsenosugars-328 and 482 were found in all studied body parts whereas arsenosugar-408 was only found in the skin of A. californicus. This is the first time that such a variation in As species distribution between sea cucumber species has been shown.
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Affiliation(s)
- Zuzana Gajdosechova
- Metrology Research Center, National Research Council of Canada, 1200 Montreal Road, Ottawa, Canada.
| | - Calvin H Palmer
- Metrology Research Center, National Research Council of Canada, 1200 Montreal Road, Ottawa, Canada
| | - Deepika Dave
- Centre for Aquaculture and Seafood Development, Fisheries and Marine Institute, Memorial University of Newfoundland, NFL, Canada
| | - Guangling Jiao
- Canadian Sea Cucumber Processors Association, NS, Canada
| | - Yanfang Zhao
- Key Laboratory of Testing and Evaluation for Aquatic Product Safety and Quality, Ministry of Agriculture and Rural Affairs, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, China
| | - Zhijun Tan
- Key Laboratory of Testing and Evaluation for Aquatic Product Safety and Quality, Ministry of Agriculture and Rural Affairs, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, China
| | - Jeffrey Chisholm
- Aquatic and Crop Resource Development Research Centre, National Research Council of Canada, Charlottetown, PE, Canada
| | - Junzeng Zhang
- Aquatic and Crop Resource Development Research Centre, National Research Council of Canada, Halifax, NS, Canada
| | - Roumiana Stefanova
- Aquatic and Crop Resource Development Research Centre, National Research Council of Canada, Halifax, NS, Canada
| | - Abul Hossain
- Department of Biochemistry, Memorial University of Newfoundland, St. John's, NL, A1B 3X9, Canada
| | - Zoltan Mester
- Metrology Research Center, National Research Council of Canada, 1200 Montreal Road, Ottawa, Canada
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13
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Luvonga C, Rimmer CA, Yu LL, Lee SB. Analytical Methodologies for the Determination of Organoarsenicals in Edible Marine Species: A Review. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2020; 68:1910-1934. [PMID: 31999115 PMCID: PMC7250003 DOI: 10.1021/acs.jafc.9b04525] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
Setting regulatory limits for arsenic in food is complicated, owing to the enormous diversity of arsenic metabolism in humans, lack of knowledge about the toxicity of these chemicals, and lack of accurate arsenic speciation data on foodstuffs. Identification and quantification of the toxic arsenic compounds are imperative to understanding the risk associated with exposure to arsenic from dietary intake, which, in turn, underscores the need for speciation analysis of the food. Arsenic speciation in seafood is challenging, owing to its existence in myriads of chemical forms and oxidation states. Interconversions occurring between chemical forms, matrix complexity, lack of standards and certified reference materials, and lack of widely accepted measurement protocols present additional challenges. This review covers the current analytical techniques for diverse arsenic species. The requirement for high-quality arsenic speciation data that is essential for establishing legislation and setting regulatory limits for arsenic in food is explored.
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Affiliation(s)
- Caleb Luvonga
- Analytical Chemistry Division , National Institute of Standards and Technology (NIST) , 100 Bureau Drive , Gaithersburg , Maryland 20899 , United States
- Department of Chemistry and Biochemistry , University of Maryland , College Park , Maryland 20742 , United States
| | - Catherine A Rimmer
- Analytical Chemistry Division , National Institute of Standards and Technology (NIST) , 100 Bureau Drive , Gaithersburg , Maryland 20899 , United States
| | - Lee L Yu
- Analytical Chemistry Division , National Institute of Standards and Technology (NIST) , 100 Bureau Drive , Gaithersburg , Maryland 20899 , United States
| | - Sang Bok Lee
- Department of Chemistry and Biochemistry , University of Maryland , College Park , Maryland 20742 , United States
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14
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Reid MS, Hoy KS, Schofield JR, Uppal JS, Lin Y, Lu X, Peng H, Le XC. Arsenic speciation analysis: A review with an emphasis on chromatographic separations. Trends Analyt Chem 2020. [DOI: 10.1016/j.trac.2019.115770] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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15
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Luvonga C, Rimmer CA, Yu LL, Lee SB. Organoarsenicals in Seafood: Occurrence, Dietary Exposure, Toxicity, and Risk Assessment Considerations - A Review. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2020; 68:943-960. [PMID: 31913614 PMCID: PMC7250045 DOI: 10.1021/acs.jafc.9b07532] [Citation(s) in RCA: 56] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
Diet, especially seafood, is the main source of arsenic exposure for humans. The total arsenic content of a diet offers inadequate information for assessment of the toxicological consequences of arsenic intake, which has impeded progress in the establishment of regulatory limits for arsenic in food. Toxicity assessments are mainly based on inorganic arsenic, a well-characterized carcinogen, and arsenobetaine, the main organoarsenical in seafood. Scarcity of toxicity data for organoarsenicals, and the predominance of arsenobetaine as an organic arsenic species in seafood, has led to the assumption of their nontoxicity. Recent toxicokinetic studies show that some organoarsenicals are bioaccessible and cytotoxic with demonstrated toxicities like that of pernicious trivalent inorganic arsenic, underpinning the need for speciation analysis. The need to investigate and compare the bioavailability, metabolic transformation, and elimination from the body of organoarsenicals to the well-established physiological consequences of inorganic arsenic and arsenobetaine exposure is apparent. This review provides an overview of the occurrence and assessment of human exposure to arsenic toxicity associated with the consumption of seafood.
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Affiliation(s)
- Caleb Luvonga
- Analytical Chemistry Division , National Institute of Standards and Technology (NIST) , 100 Bureau Drive , Gaithersburg , Maryland 20899 , United States
- Department of Chemistry and Biochemistry , University of Maryland , College Park , Maryland 20742 , United States
| | - Catherine A Rimmer
- Analytical Chemistry Division , National Institute of Standards and Technology (NIST) , 100 Bureau Drive , Gaithersburg , Maryland 20899 , United States
| | - Lee L Yu
- Analytical Chemistry Division , National Institute of Standards and Technology (NIST) , 100 Bureau Drive , Gaithersburg , Maryland 20899 , United States
| | - Sang B Lee
- Department of Chemistry and Biochemistry , University of Maryland , College Park , Maryland 20742 , United States
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16
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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] [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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17
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Raab A, Feldmann J. Biological sulphur-containing compounds – Analytical challenges. Anal Chim Acta 2019; 1079:20-29. [DOI: 10.1016/j.aca.2019.05.064] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2019] [Revised: 05/25/2019] [Accepted: 05/27/2019] [Indexed: 01/19/2023]
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18
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Bernardin M, Bessueille-Barbier F, Le Masle A, Lienemann CP, Heinisch S. Suitable interface for coupling liquid chromatography to inductively coupled plasma-mass spectrometry for the analysis of organic matrices. 2 Comparison of Sample Introduction Systems. J Chromatogr A 2019; 1603:380-387. [DOI: 10.1016/j.chroma.2019.04.074] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2019] [Revised: 04/29/2019] [Accepted: 04/30/2019] [Indexed: 11/25/2022]
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19
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Arsenic species in mushrooms, with a focus on analytical methods for their determination – A critical review. Anal Chim Acta 2019; 1073:1-21. [DOI: 10.1016/j.aca.2019.04.004] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2018] [Revised: 04/03/2019] [Accepted: 04/04/2019] [Indexed: 01/06/2023]
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20
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Abstract
Inductively coupled plasma mass spectrometry (ICP-MS) is an analytical technique that can be used to measure elements at trace levels in biological fluids. Although older techniques such as atomic absorption and atomic emission are still in use by some laboratories, there has been a slow shift toward ICP-MS, particularly in the last decade. As this shift is likely to continue, clinical scientists should be aware of the analytical aspects of ICP-MS, as well as the potential for both spectroscopic and non-spectroscopic interference, and strategies that can be employed to eliminate or mitigate these issues.
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21
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Řezanka T, Nedbalová L, Barcytė D, Vítová M, Sigler K. Arsenolipids in the green alga Coccomyxa (Trebouxiophyceae, Chlorophyta). PHYTOCHEMISTRY 2019; 164:243-251. [PMID: 31128818 DOI: 10.1016/j.phytochem.2019.05.002] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/26/2018] [Revised: 05/06/2019] [Accepted: 05/07/2019] [Indexed: 06/09/2023]
Abstract
Lipid-like compounds containing a dimethylarsinoyl group, i.e. Me2As(O)-, have been identified by liquid chromatography/inductively coupled plasma mass spectrometry (LC/ICP-MS) and non-aqueous reversed-phase high-performance liquid chromatography (positive and/or negative high-resolution tandem electrospray ionization mass spectrometry (NARP-HPLC/HR-ESI+(-)-MS/MS) from three strains of green algae of the genus Coccomyxa (Trebouxiophyceae, Chlorophyta). The algae were cultivated in a medium containing 10 g arsenic/L, i.e. 133.5 mmol/L of Na2HAsO4.7H2O. After extraction by methyl-tert-butyl ether (MTBE), total lipids were analyzed by ICP-MS or ESI-MS without any further separation or fractionation. A total of 39 molecular species of arsenic triacylglycerols (AsTAG), 15 arsenic phosphatidylcholines (AsPC), 8 arsenic phosphatidylethanolamines (AsPE), 6 arsenic phosphatidylinositols (AsPI), 2 arsenic phosphatidylglycerols (AsPG) and 5 unknown lipids (probably ceramides) were identified. The structures of all molecular species were confirmed by tandem MS. Dry matter of the individual strains contained different amounts of total arsenolipids, i.e. C. elongata CCALA 427 (0.32 mg/g), C. onubensis (1.48 mg/g), C. elongata S3 (2.13 mg/g). On the other hand, there were only slight differences between strains in the relative abundances of individual molecular species. Possible biosynthesis of long-chain lipids with the end group Me2As(O) has also been suggested.
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Affiliation(s)
- Tomáš Řezanka
- Institute of Microbiology of the Czech Academy of Sciences, Prague, Czech Republic.
| | - Linda Nedbalová
- Department of Ecology, Faculty of Science, Charles University, Prague, Czech Republic
| | - Dovilė Barcytė
- Department of Ecology, Faculty of Science, Charles University, Prague, Czech Republic
| | - Milada Vítová
- Laboratory of Cell Cycles of Algae, Institute of Microbiology of the Czech Academy of Sciences, Centre Algatech, Třeboň, Czech Republic
| | - Karel Sigler
- Institute of Microbiology of the Czech Academy of Sciences, Prague, Czech Republic
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22
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Pétursdóttir ÁH, Blagden J, Gunnarsson K, Raab A, Stengel DB, Feldmann J, Gunnlaugsdóttir H. Arsenolipids are not uniformly distributed within two brown macroalgal species Saccharina latissima and Alaria esculenta. Anal Bioanal Chem 2019; 411:4973-4985. [PMID: 31152227 PMCID: PMC6611760 DOI: 10.1007/s00216-019-01907-x] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2018] [Revised: 04/24/2019] [Accepted: 05/08/2019] [Indexed: 11/29/2022]
Abstract
Brown macroalgae Saccharina latissima (30-40 individuals) and Alaria esculenta (15-20 individuals) were collected from natural populations in winter in Iceland. The algal thalli were sectioned into different parts (e.g. holdfast, stipe, old frond, young frond and sori-containing frond sections) that differed in age and biological function. The work elucidated that arsenic (As) was not uniformly distributed within the two brown macroalgal species, with lower levels of total As were found in the stipe/midrib compared to other thallus parts. The arsenosugars mirrored the total arsenic in the seaweed mainly due to AsSugSO3 being the most abundant As species. However, arsenic speciation using parallel HPLC-ICP-MS/ESI-MS elucidated that the arsenic-containing lipids (AsL) had a different distribution where the arsenosugarphospholipids (AsPL) differed by approximately a factor of 4 between the sections containing the lowest and highest concentrations of AsPLs. When placing the sections in order of metabolic activity and an estimate of tissue age, there appeared to be a relationship between the activity and AsPLs, with lower levels of AsPLs in oldest parts. This is the first time such a relationship has been shown for AsLs. Hence, by applying sophisticated analytical techniques, it was possible to gain a deeper understanding of arsenolipids in seaweed.
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Affiliation(s)
| | - Jonathan Blagden
- Matís, Research and Innovation, Vínlandsleið 12, 113, Reykjavík, Iceland
- Trace Element Speciation Laboratory Aberdeen, University of Aberdeen, Meston Walk, Aberdeen, AB24 3UE, UK
| | - Karl Gunnarsson
- Marine & Freshwater Research Institute, Skúlagata 4, 101, Reykjavík, Iceland
| | - Andrea Raab
- Trace Element Speciation Laboratory Aberdeen, University of Aberdeen, Meston Walk, Aberdeen, AB24 3UE, UK
| | - Dagmar B Stengel
- Botany and Plant Science, School of Natural Sciences, and, Ryan Institute for Environmental, Marine and Energy Research, National University of Ireland Galway, Galway, Ireland
| | - Jörg Feldmann
- Trace Element Speciation Laboratory Aberdeen, University of Aberdeen, Meston Walk, Aberdeen, AB24 3UE, UK.
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23
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Novel non-targeted analysis of perfluorinated compounds using fluorine-specific detection regardless of their ionisability (HPLC-ICPMS/MS-ESI-MS). Anal Chim Acta 2019; 1053:22-31. [DOI: 10.1016/j.aca.2018.11.037] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2018] [Revised: 11/08/2018] [Accepted: 11/14/2018] [Indexed: 12/14/2022]
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24
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Zou H, Zhou C, Li Y, Yang X, Wen J, Hu X, Sun C. Occurrence, toxicity, and speciation analysis of arsenic in edible mushrooms. Food Chem 2019; 281:269-284. [PMID: 30658757 DOI: 10.1016/j.foodchem.2018.12.103] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2018] [Revised: 12/07/2018] [Accepted: 12/22/2018] [Indexed: 11/29/2022]
Abstract
Owing to the strong concentration and biotransformation of arsenic, the influence of some edible mushrooms on human health has attracted widespread attention. The toxicity of arsenic greatly depends on its species, so the speciation analysis of arsenic is of critical importance. The aim of the present review is to highlight recent advances in arsenic speciation analysis in edible mushrooms. We summarized the contents and distribution of arsenic species in some edible mushrooms, the methods of sample preparation, and the techniques for their identification and quantification. Stability of the arsenic species during sample pretreatment and storage is also briefly discussed.
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Affiliation(s)
- Haimin Zou
- West China School of Public Health, Sichuan University, Chengdu 610041, China; Chengdu Center for Disease Control and Prevention, Chengdu, Sichuan 610047, China
| | - Chen Zhou
- West China School of Public Health, Sichuan University, Chengdu 610041, China
| | - Yongxin Li
- West China School of Public Health, Sichuan University, Chengdu 610041, China; Provincial Key Laboratory for Food Safety Monitoring and Risk Assessment of Sichuan, Chengdu 610041, China
| | - Xiaosong Yang
- Chengdu Center for Disease Control and Prevention, Chengdu, Sichuan 610047, China
| | - Jun Wen
- Chengdu Center for Disease Control and Prevention, Chengdu, Sichuan 610047, China
| | - Xiaoke Hu
- Chengdu Center for Disease Control and Prevention, Chengdu, Sichuan 610047, China
| | - Chengjun Sun
- West China School of Public Health, Sichuan University, Chengdu 610041, China; Provincial Key Laboratory for Food Safety Monitoring and Risk Assessment of Sichuan, Chengdu 610041, China.
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25
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Marschner K, Pétursdóttir ÁH, Bücker P, Raab A, Feldmann J, Mester Z, Matoušek T, Musil S. Validation and inter-laboratory study of selective hydride generation for fast screening of inorganic arsenic in seafood. Anal Chim Acta 2018; 1049:20-28. [PMID: 30612652 DOI: 10.1016/j.aca.2018.11.036] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2018] [Revised: 11/09/2018] [Accepted: 11/12/2018] [Indexed: 12/15/2022]
Abstract
It is advisable to monitor and regulate inorganic arsenic (iAs) in food and feedstuff. This work describes an update and validation of a method of selective hydride generation (HG) with inductively coupled plasma mass spectrometry (ICP-MS) for high-throughput screening of iAs content in seafood samples after microwave-assisted extraction with diluted nitric acid and hydrogen peroxide. High concentration of HCl (8 M) for HG along with hydrogen peroxide in samples of a same concentration as used for extraction leads to a selective conversion of iAs to volatile arsine that is released and transported to the detector. A minor contribution from methylarsonate (≈20% to iAs) was found, while HG from dimethylarsinate, trimethylarsine oxide is substantially suppressed (less than 1% to iAs). Methodology was applied to Certified Reference Materials (CRMs) TORT-3, DORM-3, DORM-4, DOLT-4, DOLT-5, PRON-1, SQID-1 and ERM-CE278k, in some of them iAs has been determined for the first time, and to various seaweed samples from a local store. The results were always compared with a reference method and selectivity of iAs determination was evaluated. An inter-laboratory reproducibility was tested by comparative analyses of six fish and four seaweed samples in three European laboratories, with good agreement of the results. The method of HG-ICP-MS is sensitive (limit of detection 2 μg kg-1 iAs), well suited for screening of large number of samples and selective at iAs concentration levels at which maximum limits are expected to be set into EU legislation for marine samples.
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Affiliation(s)
- Karel Marschner
- Institute of Analytical Chemistry of the Czech Academy of Sciences, Veveří 97, 602 00, Brno, Czech Republic
| | | | - Patrick Bücker
- TESLA-Trace Element Speciation Laboratory, Department of Chemistry, University of Aberdeen, Aberdeen, AB24 3UE, Scotland, UK
| | - Andrea Raab
- TESLA-Trace Element Speciation Laboratory, Department of Chemistry, University of Aberdeen, Aberdeen, AB24 3UE, Scotland, UK
| | - Jörg Feldmann
- TESLA-Trace Element Speciation Laboratory, Department of Chemistry, University of Aberdeen, Aberdeen, AB24 3UE, Scotland, UK
| | - Zoltán Mester
- National Research Council of Canada, 1200 Montreal Road, Ottawa, Ontario, K1A 0R6, Canada
| | - Tomáš Matoušek
- Institute of Analytical Chemistry of the Czech Academy of Sciences, Veveří 97, 602 00, Brno, Czech Republic
| | - Stanislav Musil
- Institute of Analytical Chemistry of the Czech Academy of Sciences, Veveří 97, 602 00, Brno, Czech Republic.
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26
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LeBlanc KL, Kumkrong P, Mercier PHJ, Mester Z. Selenium analysis in waters. Part 2: Speciation methods. THE SCIENCE OF THE TOTAL ENVIRONMENT 2018; 640-641:1635-1651. [PMID: 29935780 DOI: 10.1016/j.scitotenv.2018.05.394] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/19/2018] [Revised: 05/25/2018] [Accepted: 05/31/2018] [Indexed: 06/08/2023]
Abstract
In aquatic ecosystems, there is often no correlation between the total concentration of selenium present in the water column and the toxic effects observed in that environment. This is due, in part, to the variation in the bioavailability of different selenium species to organisms at the base of the aquatic food chain. The first part of this review (Kumkrong et al., 2018) discusses regulatory framework and standard methodologies for selenium analysis in waters. In this second article, we are reviewing the state of speciation analysis and importance of speciation data for decision makers in industry and regulators. We look in detail at fractionation methods for speciation, including the popular selective sequential hydride generation. We examine advantages and limitations of these methods, in terms of achievable detection limits and interferences from other matrix species, as well as the potential to over- or under-estimate operationally-defined fractions based on the various conversion steps involved in fractionation processes. Additionally, we discuss methods of discrete speciation (through separation methods), their importance in analyzing individual selenium species, difficulties associated with their implementation, as well as ways to overcome these difficulties. We also provide a brief overview of biological treatment methods for the remediation of selenium-contaminated waters. We discuss the importance of selenium speciation in the application of these methods and their potential to actually increase the bioavailability of selenium despite decreasing its total waterborne concentration.
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Affiliation(s)
- Kelly L LeBlanc
- National Research Council Canada, 1200 Montreal Road, Ottawa, Ontario, Canada.
| | - Paramee Kumkrong
- National Research Council Canada, 1200 Montreal Road, Ottawa, Ontario, Canada
| | - Patrick H J Mercier
- National Research Council Canada, 1200 Montreal Road, Ottawa, Ontario, Canada
| | - Zoltán Mester
- National Research Council Canada, 1200 Montreal Road, Ottawa, Ontario, Canada
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27
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Meyer S, Markova M, Pohl G, Marschall TA, Pivovarova O, Pfeiffer AFH, Schwerdtle T. Development, validation and application of an ICP-MS/MS method to quantify minerals and (ultra-)trace elements in human serum. J Trace Elem Med Biol 2018; 49:157-163. [PMID: 29895367 DOI: 10.1016/j.jtemb.2018.05.012] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/14/2018] [Revised: 05/17/2018] [Accepted: 05/17/2018] [Indexed: 01/03/2023]
Abstract
Multi-element determination in human samples is very challenging. Especially in human intervention studies sample volumes are often limited to a few microliters and due to the high number of samples a high-throughput is indispensable. Here, we present a state-of-the-art ICP-MS/MS-based method for the analysis of essential (trace) elements, namely Mg, Ca, Fe, Cu, Zn, Mo, Se and I, as well as food-relevant toxic elements such as As and Cd. The developed method was validated regarding linearity of the calibration curves, method LODs and LOQs, selectivity and trueness as well as precision. The established reliable method was applied to quantify the element serum concentrations of participants of a human intervention study (LeguAN). The participants received isocaloric diets, either rich in plant protein or in animal protein. While the serum concentrations of Mg and Mo increased in participants receiving the plant protein-based diet (above all legumes), the Se concentration in serum decreased. In contrast, the animal protein-based diet, rich in meat and dairy products, resulted in an increased Se concentration in serum.
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Affiliation(s)
- Sören Meyer
- Institute of Nutritional Science, University of Potsdam, Arthur-Scheunert-Allee 114-116, 14558 Nuthetal, Germany; NutriAct - Competence Cluster Nutrition Research, Berlin, Potsdam, Germany
| | - Mariya Markova
- Department of Clinical Nutrition, German Institute of Human Nutrition Potsdam-Rehbruecke, Arthur-Scheunert-Allee 114-116, 14558 Nuthetal, Germany; German Center for Diabetes Research (DZD), Ingolstaedter Landstraße 1 85764, Muenchen-Neuherberg, Germany
| | - Gabriele Pohl
- Institute of Nutritional Science, University of Potsdam, Arthur-Scheunert-Allee 114-116, 14558 Nuthetal, Germany; NutriAct - Competence Cluster Nutrition Research, Berlin, Potsdam, Germany
| | - Talke A Marschall
- Institute of Nutritional Science, University of Potsdam, Arthur-Scheunert-Allee 114-116, 14558 Nuthetal, Germany
| | - Olga Pivovarova
- Department of Clinical Nutrition, German Institute of Human Nutrition Potsdam-Rehbruecke, Arthur-Scheunert-Allee 114-116, 14558 Nuthetal, Germany; German Center for Diabetes Research (DZD), Ingolstaedter Landstraße 1 85764, Muenchen-Neuherberg, Germany; Department of Endocrinology, Diabetes and Nutrition, Campus Benjamin Franklin, Charité University Medicine, Hindenburgdamm 30, 12200, Berlin, Germany
| | - Andreas F H Pfeiffer
- NutriAct - Competence Cluster Nutrition Research, Berlin, Potsdam, Germany; Department of Clinical Nutrition, German Institute of Human Nutrition Potsdam-Rehbruecke, Arthur-Scheunert-Allee 114-116, 14558 Nuthetal, Germany; German Center for Diabetes Research (DZD), Ingolstaedter Landstraße 1 85764, Muenchen-Neuherberg, Germany; Department of Endocrinology, Diabetes and Nutrition, Campus Benjamin Franklin, Charité University Medicine, Hindenburgdamm 30, 12200, Berlin, Germany
| | - Tanja Schwerdtle
- Institute of Nutritional Science, University of Potsdam, Arthur-Scheunert-Allee 114-116, 14558 Nuthetal, Germany; NutriAct - Competence Cluster Nutrition Research, Berlin, Potsdam, Germany; TraceAge - DFG Research Unit on Interactions of Essential Trace Elements in Healthy and Diseased Elderly, Potsdam-Berlin-Jena, Germany.
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28
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Suitable interface for coupling liquid chromatography to inductively coupled plasma-mass spectrometry for the analysis of organic matrices. 1 Theoretical and experimental considerations on solute dispersion. J Chromatogr A 2018; 1565:68-80. [DOI: 10.1016/j.chroma.2018.06.024] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2018] [Revised: 06/07/2018] [Accepted: 06/09/2018] [Indexed: 01/28/2023]
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29
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Gajdosechova Z, Mester Z, Feldmann J, Krupp EM. The role of selenium in mercury toxicity – Current analytical techniques and future trends in analysis of selenium and mercury interactions in biological matrices. Trends Analyt Chem 2018. [DOI: 10.1016/j.trac.2017.12.005] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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30
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Liu Q, Leslie EM, Moe B, Zhang H, Douglas DN, Kneteman NM, Le XC. Metabolism of a Phenylarsenical in Human Hepatic Cells and Identification of a New Arsenic Metabolite. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2018; 52:1386-1392. [PMID: 29280623 DOI: 10.1021/acs.est.7b05081] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Environmental contamination and human consumption of chickens could result in potential exposure to Roxarsone (3-nitro-4-hydroxyphenylarsonic acid), an organic arsenical that has been used as a chicken feed additive in many countries. However, little is known about the metabolism of Roxarsone in humans. The objective of this research was to investigate the metabolism of Roxarsone in human liver cells and to identify new arsenic metabolites of toxicological significance. Human primary hepatocytes and hepatocellular carcinoma HepG2 cells were treated with 20 or 100 μM Roxarsone. Arsenic species were characterized using a strategy of complementary chromatography and mass spectrometry. The results showed that Roxarsone was metabolized to more than 10 arsenic species in human hepatic cells. A new metabolite was identified as a thiolated Roxarsone. The 24 h IC50 values of thiolated Roxarsone for A549 lung cancer cells and T24 bladder cancer cells were 380 ± 80 and 42 ± 10 μM, respectively, more toxic than Roxarsone, whose 24 h IC50 values for A549 and T24 were 9300 ± 1600 and 6800 ± 740 μM, respectively. The identification and toxicological studies of the new arsenic metabolite are useful for understanding the fate of arsenic species and assessing the potential impact of human exposure to Roxarsone.
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Affiliation(s)
- Qingqing Liu
- Department of Laboratory Medicine and Pathology, Faculty of Medicine and Dentistry, University of Alberta , 10-102 Clinical Sciences Building, Edmonton, Alberta, Canada T6G 2G3
| | - Elaine M Leslie
- Department of Laboratory Medicine and Pathology, Faculty of Medicine and Dentistry, University of Alberta , 10-102 Clinical Sciences Building, Edmonton, Alberta, Canada T6G 2G3
- Department of Physiology, Faculty of Medicine and Dentistry, University of Alberta , 7-08A Medical Sciences Building, Edmonton, Alberta, Canada T6G 2H7
| | - Birget Moe
- Department of Laboratory Medicine and Pathology, Faculty of Medicine and Dentistry, University of Alberta , 10-102 Clinical Sciences Building, Edmonton, Alberta, Canada T6G 2G3
- Alberta Centre for Toxicology, Department of Physiology and Pharmacology, Faculty of Medicine, University of Calgary , Calgary, Alberta, Canada T2N 4N1
| | - Hongquan Zhang
- Department of Laboratory Medicine and Pathology, Faculty of Medicine and Dentistry, University of Alberta , 10-102 Clinical Sciences Building, Edmonton, Alberta, Canada T6G 2G3
| | - Donna N Douglas
- Department of Surgery, Faculty of Medicine and Dentistry, University of Alberta, Walter C. Mackenzie Health Sciences Centre , Edmonton, Alberta, Canada T6G 2B7
| | - Norman M Kneteman
- Department of Surgery, Faculty of Medicine and Dentistry, University of Alberta, Walter C. Mackenzie Health Sciences Centre , Edmonton, Alberta, Canada T6G 2B7
| | - X Chris Le
- Department of Laboratory Medicine and Pathology, Faculty of Medicine and Dentistry, University of Alberta , 10-102 Clinical Sciences Building, Edmonton, Alberta, Canada T6G 2G3
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31
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Ghosh D, Bhadury P. Microbial Cycling of Arsenic in the Aquifers of Bengal Delta Plains (BDP). ADVANCES IN SOIL MICROBIOLOGY: RECENT TRENDS AND FUTURE PROSPECTS 2018. [DOI: 10.1007/978-981-10-6178-3_5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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32
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Yu LL, Stanoyevitch RC, Zeisler R. SI traceable determination of arsenic species in kelp ( Thallus laminariae). ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2017; 9:4267-4274. [PMID: 28966665 PMCID: PMC5615412 DOI: 10.1039/c7ay01111c] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
A dietary supplement, kelp contains a significant amount of arsenic that is mostly arsenosugars. The determination of arsenosugars is difficult due to a lack of arsenosugar calibration standard, because arsenosugar compounds are not commercially available. This work reports the determination of arsenicals in a kelp extract with traceability to the International System of Units (SI). The hydrophilic fraction of arsenicals was reproducibly extracted from a candidate Standard Reference Material (SRM) 3232 Kelp Powder (Thallus Laminariae) in development at the National Institute of Standards and Technology (NIST). Arsenosugars and dimethylarsinic acid (DMA) were separated into fractions using analytical liquid chromatography (LC) cation and anion columns. The arsenic in the fractions was determined using instrumental neutron activation analysis (INAA). Cation exchange separation was used for INAA determination of arsenosugar 3-[5'-deoxy-5'-(dimethylarsinoyl)-β-ribofuranosyloxy]propylene glycol (As(328)) for the first time, while DMA, arsenosugars 3-[5'-deoxy-5'-(dimethylarsinoyl)-β-ribofuranosyloxy]-2-hydroxypropyl 2,3-dihydroxypropyl hydrogen phosphate (As(482)), and 3-[5'-deoxy-5'-(dimethylarsinoyl)-β-ribofuranosyloxy]-2-hydroxypropanesulfonic acid (As(392)) were determined following anion exchange separation. The contents of DMA, As(328), As(482), and As(392) were 0.41 mg kg-1 ± 0.09 mg kg-1, 1.10 mg kg-1 ± 0.25 mg kg-1, 5.23 mg kg-1 ± 0.46 mg kg-1, and 13.17 mg kg-1 ± 0.67 mg kg-1, respectively. Separately, components of arsenic species in the kelp extract including DMA, As(328), and inorganic arsenic were determined using LC-inductively coupled plasma mass spectrometry. Results of DMA and As(328) were 0.485 mg kg-1 ± 0.024 mg kg-1 and 1.14 mg kg-1 ± 0.03 mg kg-1, respectively, which were in good agreement with those determined by INAA in fractions of LC eluent. The most toxic species, AsIII and AsV were found to be < 0.07 mg kg-1 and 0.231 mg kg-1 ± 0.018 mg kg-1, respectively. Results were traceable to SI.
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Affiliation(s)
- Lee L Yu
- National Institute of Standards and Technology, Gaithersburg, MD 20899
| | | | - Rolf Zeisler
- National Institute of Standards and Technology, Gaithersburg, MD 20899
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33
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Importance of ICPMS for speciation analysis is changing: future trends for targeted and non-targeted element speciation analysis. Anal Bioanal Chem 2017; 410:661-667. [PMID: 28735451 PMCID: PMC5775347 DOI: 10.1007/s00216-017-0502-8] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2017] [Revised: 06/10/2017] [Accepted: 06/27/2017] [Indexed: 01/03/2023]
Abstract
This article is aimed at researchers interested in organic molecules which contain a heteroatom but who have never considered using inductively coupled plasma mass spectrometry (ICPMS) or who have used ICPMS for years and developed numerous methods for analysis of target elemental species. We try to illustrate (1) that ICPMS has been very useful for speciation analysis of metal(loid) target species and that there is now a trend to replace the costly detector with cheaper detection systems for routine target analysis, and (2) that ICPMS has been used and will be used even more in the future for non-targeted analysis of elements which are not normally associated with ICPMS analysis, such as non-metals such as sulfur, phosphorus, chlorine and fluorine. Starting with HPLC-ICPMS for non-targeted analysis of heteroatom containing molecules, once target molecule is identified alternative detectors can be used for routine measurements ![]()
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34
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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. THE SCIENCE OF THE TOTAL ENVIRONMENT 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] [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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35
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Raab A, Ronzan M, Feldmann J. Sulphur fertilization influences the sulphur species composition in Allium sativum: sulphomics using HPLC-ICPMS/MS-ESI-MS/MS. Metallomics 2017; 9:1429-1438. [DOI: 10.1039/c7mt00098g] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Comprehensive non-target analysis identifies 54 sulphur containing compounds in garlic.
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Affiliation(s)
- Andrea Raab
- TESLA (Trace Element Speciation Laboratory)
- University of Aberdeen
- Chemistry
- Aberdeen
- UK
| | - Marilena Ronzan
- TESLA (Trace Element Speciation Laboratory)
- University of Aberdeen
- Chemistry
- Aberdeen
- UK
| | - Joerg Feldmann
- TESLA (Trace Element Speciation Laboratory)
- University of Aberdeen
- Chemistry
- Aberdeen
- UK
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36
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Adaba RI, Mann G, Raab A, Houssen WE, McEwan AR, Thomas L, Tabudravu J, Naismith JH, Jaspars M. Accurate quantification of modified cyclic peptides without the need for authentic standards. Tetrahedron 2016; 72:8603-8609. [PMID: 32818002 PMCID: PMC7115945 DOI: 10.1016/j.tet.2016.11.040] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
There is a growing interest in the use of cyclic peptides as therapeutics, but their efficient production is often the bottleneck in taking them forward in the development pipeline. We have recently developed a method to synthesise azole-containing cyclic peptides using enzymes derived from different cyanobactin biosynthetic pathways. Accurate quantification is crucial for calculation of the reaction yield and for the downstream biological testing of the products. In this study, we demonstrate the development and validation of two methods to accurately quantify these compounds in the reaction mixture and after purification. The first method involves the use of a HPLC coupled in parallel to an ESMS and an ICPMS, hence correlating the calculated sulfur content to the amount of cyclic peptide. The second method is an NMR ERETIC method for quantifying the solution concentration of cyclic peptides. These methods make the quantification of new compounds much easier as there is no need for the use of authentic standards when they are not available.
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Affiliation(s)
- Rosemary I. Adaba
- Marine Biodiscovery Centre, Department of Chemistry, University of Aberdeen, Meston Walk, Aberdeen. AB24 3UE, UK
| | - Greg Mann
- Biomedical Sciences Research Complex, University of St Andrews, North Haugh, St Andrews, Fife KY16 9ST, UK
| | - Andrea Raab
- TESLA, Department of Chemistry, University of Aberdeen, UK
| | - Wael E. Houssen
- Marine Biodiscovery Centre, Department of Chemistry, University of Aberdeen, Meston Walk, Aberdeen. AB24 3UE, UK
- Institute of Medical Sciences, University of Aberdeen, Aberdeen AB25 2ZD, UK
- Pharmacognosy Department, Faculty of Pharmacy, Mansoura University, Mansoura 35516, Egypt
| | - Andrew R. McEwan
- Marine Biodiscovery Centre, Department of Chemistry, University of Aberdeen, Meston Walk, Aberdeen. AB24 3UE, UK
- Institute of Medical Sciences, University of Aberdeen, Aberdeen AB25 2ZD, UK
| | - Louise Thomas
- Marine Biodiscovery Centre, Department of Chemistry, University of Aberdeen, Meston Walk, Aberdeen. AB24 3UE, UK
- Institute of Medical Sciences, University of Aberdeen, Aberdeen AB25 2ZD, UK
| | - Jioji Tabudravu
- Marine Biodiscovery Centre, Department of Chemistry, University of Aberdeen, Meston Walk, Aberdeen. AB24 3UE, UK
| | - James H. Naismith
- Biomedical Sciences Research Complex, University of St Andrews, North Haugh, St Andrews, Fife KY16 9ST, UK
| | - Marcel Jaspars
- Marine Biodiscovery Centre, Department of Chemistry, University of Aberdeen, Meston Walk, Aberdeen. AB24 3UE, UK
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37
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Bosle J, Goetz S, Raab A, Krupp EM, Scheckel KG, Lombi E, Meharg AA, Fowler PA, Feldmann J. Cobalamin Concentrations in Fetal Liver Show Gender Differences: A Result from Using a High-Pressure Liquid Chromatography–Inductively Coupled Plasma Mass Spectrometry as an Ultratrace Cobalt Speciation Method. Anal Chem 2016; 88:12419-12426. [DOI: 10.1021/acs.analchem.6b03730] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Janine Bosle
- TESLA
(Trace Element Speciation Laboratory), Department of Chemistry, Meston
Walk, University of Aberdeen, Aberdeen, AB24 3UE, Scotland, U.K
| | - Sven Goetz
- TESLA
(Trace Element Speciation Laboratory), Department of Chemistry, Meston
Walk, University of Aberdeen, Aberdeen, AB24 3UE, Scotland, U.K
| | - Andrea Raab
- TESLA
(Trace Element Speciation Laboratory), Department of Chemistry, Meston
Walk, University of Aberdeen, Aberdeen, AB24 3UE, Scotland, U.K
| | - Eva M. Krupp
- TESLA
(Trace Element Speciation Laboratory), Department of Chemistry, Meston
Walk, University of Aberdeen, Aberdeen, AB24 3UE, Scotland, U.K
| | - Kirk G. Scheckel
- U.S. Environmental Protection Agency, National
Risk Management Research Laboratory Land Remediation and Pollution
Control Division, 5995
Center Hill Avenue, Cincinnati, Ohio 45224, United States
| | - Enzo Lombi
- Future
Industries Institute, University of South Australia, Building X, Mawson Lakes Campus, Mawson Lakes, South Australia, SA-5095, Australia
| | - Andrew A. Meharg
- Institute
for Global Food Security, Queen’s University Belfast, Malone Road, Belfast, Ireland, BT9
5BN, U.K
| | - Paul A. Fowler
- Institute of Medical Sciences, School of Medicine, Medical Sciences & Nutrition, University of Aberdeen, Aberdeen, AB25 2ZD, Scotland, U.K
| | - Jörg Feldmann
- TESLA
(Trace Element Speciation Laboratory), Department of Chemistry, Meston
Walk, University of Aberdeen, Aberdeen, AB24 3UE, Scotland, U.K
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38
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Aborode FA, Raab A, Voigt M, Costa LM, Krupp EM, Feldmann J. The importance of glutathione and phytochelatins on the selenite and arsenate detoxification in Arabidopsis thaliana. J Environ Sci (China) 2016; 49:150-161. [PMID: 28007170 DOI: 10.1016/j.jes.2016.08.009] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2016] [Revised: 08/08/2016] [Accepted: 08/13/2016] [Indexed: 05/24/2023]
Abstract
We investigated the role of glutathione (GSH) and phytochelatins (PCs) on the detoxification of selenite using Arabidopsis thaliana. The wild-type (WT) of Arabidopsis thaliana and its mutants (glutathione deficient Cad 2-1 and phytochelatins deficient Cad 1-3) were separately exposed to varying concentrations of selenite and arsenate and jointly to both toxicants to determine their sensitivities. The results of the study revealed that, the mutants were about 20-fold more sensitive to arsenate than the WT, an indication that the GSH and PCs affect arsenate detoxification. On the contrary, the WT and both mutants showed a similar level of sensitivity to selenite, an indication that the GSH and PCs do not significantly affect selenite detoxification. However, the WT is about 8 times more sensitive to selenite than to arsenate, and the mutants were more resistant to selenite than arsenate by a factor of 2. This could not be explained by the accumulation of both elements in roots and shoots in exposure experiments. The co-exposure of the WT indicates a synergistic effect with regards to toxicity since selenite did not induce PCs but arsenic and selenium compete in their PC binding as revealed by speciation analysis of the root extracts using HPLC-ICP-MS/ESI-MS. In the absence of PCs an antagonistic effect has been detected which might suggest indirectly that the formation of Se glutathione complex prevent the formation of detrimental selenopeptides. This study, therefore, revealed that PC and GSH have only a subordinate role in the detoxification of selenite.
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Affiliation(s)
- Fatai Adigun Aborode
- Trace Element Speciation Laboratory, Department of Chemistry, University of Aberdeen, Aberdeen AB24 3UE, Scotland, UK.
| | - Andrea Raab
- Trace Element Speciation Laboratory, Department of Chemistry, University of Aberdeen, Aberdeen AB24 3UE, Scotland, UK
| | - Matthias Voigt
- Trace Element Speciation Laboratory, Department of Chemistry, University of Aberdeen, Aberdeen AB24 3UE, Scotland, UK
| | - Leticia Malta Costa
- Trace Element Speciation Laboratory, Department of Chemistry, University of Aberdeen, Aberdeen AB24 3UE, Scotland, UK; Departamento de Química, Universidade Federal de Minas Gerais, Belo Horizonte, MG CEP: 31270-901, Brazil
| | - Eva M Krupp
- Trace Element Speciation Laboratory, Department of Chemistry, University of Aberdeen, Aberdeen AB24 3UE, Scotland, UK
| | - Joerg Feldmann
- Trace Element Speciation Laboratory, Department of Chemistry, University of Aberdeen, Aberdeen AB24 3UE, Scotland, UK.
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39
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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] [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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40
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Barciela-Alonso MC, Bermejo-Barrera P, Feldmann J, Raab A, Hansen HR, Bluemlein K, Wallschläger D, Stiboller M, Glabonjat RA, Raber G, Jensen KB, Francesconi KA. Arsenic and As Species. Metallomics 2016. [DOI: 10.1002/9783527694907.ch7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- María Carmen Barciela-Alonso
- University of Santiago de Compostela; Department of analytical Chemistry; Nutrition and Bromatology. Avda. das Ciencias s/n 15782 Santiago de Compostela Spain
| | - Pilar Bermejo-Barrera
- University of Santiago de Compostela; Department of analytical Chemistry; Nutrition and Bromatology. Avda. das Ciencias s/n 15782 Santiago de Compostela Spain
| | - Jörg Feldmann
- University of Aberdeen; Department of Chemistry, TESLA (Trace Element Speciation Laboratory); Meston Walk AB24 3UE Aberdeen UK
| | - Andrea Raab
- University of Aberdeen; Department of Chemistry, TESLA (Trace Element Speciation Laboratory); Meston Walk AB24 3UE Aberdeen UK
| | - Helle R. Hansen
- Chemist Metal Section; Eurofins Miljo A/S, Ladelundvej 85 6600 Vejen Denmark
| | - Katharina Bluemlein
- Department of Analytical Chemistry, Fraunhofer Institute for Toxicology and Experimental; Medicine, Nikolai-Fuchs-Strasse 1 30625 Hannover Germany
| | - Dirk Wallschläger
- Trent University; Water Quality Centre, 1600 West Bank Drive Peterborough, ON K9L 0G2 Canada
| | - Michael Stiboller
- University of Graz; Institute of Chemistry, Analytical Chemistry, NAWI Graz; Universitätsplatz 1 8010 Graz Austria
| | - Ronald A. Glabonjat
- University of Graz; Institute of Chemistry, Analytical Chemistry, NAWI Graz; Universitätsplatz 1 8010 Graz Austria
| | - Georg Raber
- University of Graz; Institute of Chemistry, Analytical Chemistry, NAWI Graz; Universitätsplatz 1 8010 Graz Austria
| | - Kenneth B. Jensen
- University of Graz; Institute of Chemistry, Analytical Chemistry, NAWI Graz; Universitätsplatz 1 8010 Graz Austria
| | - Kevin A. Francesconi
- University of Graz; Institute of Chemistry, Analytical Chemistry, NAWI Graz; Universitätsplatz 1 8010 Graz Austria
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41
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Cruz-Morales P, Kopp JF, Martínez-Guerrero C, Yáñez-Guerra LA, Selem-Mojica N, Ramos-Aboites H, Feldmann J, Barona-Gómez F. Phylogenomic Analysis of Natural Products Biosynthetic Gene Clusters Allows Discovery of Arseno-Organic Metabolites in Model Streptomycetes. Genome Biol Evol 2016; 8:1906-16. [PMID: 27289100 PMCID: PMC4943196 DOI: 10.1093/gbe/evw125] [Citation(s) in RCA: 75] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Natural products from microbes have provided humans with beneficial antibiotics for millennia. However, a decline in the pace of antibiotic discovery exerts pressure on human health as antibiotic resistance spreads, a challenge that may better faced by unveiling chemical diversity produced by microbes. Current microbial genome mining approaches have revitalized research into antibiotics, but the empirical nature of these methods limits the chemical space that is explored. Here, we address the problem of finding novel pathways by incorporating evolutionary principles into genome mining. We recapitulated the evolutionary history of twenty-three enzyme families previously uninvestigated in the context of natural product biosynthesis in Actinobacteria, the most proficient producers of natural products. Our genome evolutionary analyses where based on the assumption that expanded—repurposed enzyme families—from central metabolism, occur frequently and thus have the potential to catalyze new conversions in the context of natural products biosynthesis. Our analyses led to the discovery of biosynthetic gene clusters coding for hidden chemical diversity, as validated by comparing our predictions with those from state-of-the-art genome mining tools; as well as experimentally demonstrating the existence of a biosynthetic pathway for arseno-organic metabolites in Streptomyces coelicolor and Streptomyces lividans, Using a gene knockout and metabolite profile combined strategy. As our approach does not rely solely on sequence similarity searches of previously identified biosynthetic enzymes, these results establish the basis for the development of an evolutionary-driven genome mining tool termed EvoMining that complements current platforms. We anticipate that by doing so real ‘chemical dark matter’ will be unveiled.
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Affiliation(s)
- Pablo Cruz-Morales
- Evolution of Metabolic Diversity Laboratory, Langebio, Cinvestav-IPN, Irapuato, Guanajuato, México
| | - Johannes Florian Kopp
- Trace Element Speciation Laboratory (TESLA) College of Physical Sciences, Aberdeen, Scotland, UK
| | | | | | - Nelly Selem-Mojica
- Evolution of Metabolic Diversity Laboratory, Langebio, Cinvestav-IPN, Irapuato, Guanajuato, México
| | - Hilda Ramos-Aboites
- Evolution of Metabolic Diversity Laboratory, Langebio, Cinvestav-IPN, Irapuato, Guanajuato, México
| | - Jörg Feldmann
- Trace Element Speciation Laboratory (TESLA) College of Physical Sciences, Aberdeen, Scotland, UK
| | - Francisco Barona-Gómez
- Evolution of Metabolic Diversity Laboratory, Langebio, Cinvestav-IPN, Irapuato, Guanajuato, México
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42
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Pantoja Munoz L, Purchase D, Jones H, Raab A, Urgast D, Feldmann J, Garelick H. The mechanisms of detoxification of As(III), dimethylarsinic acid (DMA) and As(V) in the microalga Chlorella vulgaris. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2016; 175:56-72. [PMID: 26994369 DOI: 10.1016/j.aquatox.2016.02.020] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/07/2016] [Revised: 02/24/2016] [Accepted: 02/26/2016] [Indexed: 06/05/2023]
Abstract
The response of Chlorella vulgaris when challenged by As(III), As(V) and dimethylarsinic acid (DMA) was assessed through experiments on adsorption, efflux and speciation of arsenic (reduction, oxidation, methylation and chelation with glutathione/phytochelatin [GSH/PC]). Our study indicates that at high concentrations of phosphate (1.62mM of HPO4(2-)), upon exposure to As(V), cells are able to shift towards methylation of As(V) rather than PC formation. Treatment with As(V) caused a moderate decrease in intracellular pH and a strong increase in the concentration of free thiols (GSH). Passive surface adsorption was found to be negligible for living cells exposed to DMA and As(V). However, adsorption of As(III) was observed to be an active process in C. vulgaris, because it did not show saturation at any of the exposure periods. Chelation of As(III) with GS/PC and to a lesser extent hGS/hPC is a major detoxification mechanism employed by C. vulgaris cells when exposed to As(III). The increase of bound As-GS/PC complexes was found to be strongly related to an increase in concentration of As(III) in media. C. vulgaris cells did not produce any As-GS/PC complex when exposed to As(V). This may indicate that a reduction step is needed for As(V) complexation with GSH/PC. C. vulgaris cells formed DMAS(V)-GS upon exposure to DMA independent of the exposure period. As(III) triggers the formation of arsenic complexes with PC and homophytochelatins (hPC) and their compartmentalisation to vacuoles. A conceptual model was devised to explain the mechanisms involving ABCC1/2 transport. The potential of C. vulgaris to bio-remediate arsenic from water appeared to be highly selective and effective without the potential hazard of reducing As(V) to As(III), which is more toxic to humans.
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Affiliation(s)
- L Pantoja Munoz
- Department of Natural Sciences, School of Science and Technology, Middlesex University, The Burroughs, London NW4 4BT, United Kingdom
| | - D Purchase
- Department of Natural Sciences, School of Science and Technology, Middlesex University, The Burroughs, London NW4 4BT, United Kingdom
| | - H Jones
- Department of Natural Sciences, School of Science and Technology, Middlesex University, The Burroughs, London NW4 4BT, United Kingdom
| | - A Raab
- College of Physical Sciences - Chemistry, Trace Element Speciation Laboratory (TESLA), University of Aberdeen, Meston Walk, Aberdeen AB24 3UE, United Kingdom
| | - D Urgast
- College of Physical Sciences - Chemistry, Trace Element Speciation Laboratory (TESLA), University of Aberdeen, Meston Walk, Aberdeen AB24 3UE, United Kingdom
| | - J Feldmann
- College of Physical Sciences - Chemistry, Trace Element Speciation Laboratory (TESLA), University of Aberdeen, Meston Walk, Aberdeen AB24 3UE, United Kingdom
| | - H Garelick
- Department of Natural Sciences, School of Science and Technology, Middlesex University, The Burroughs, London NW4 4BT, United Kingdom.
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43
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Niehoff AC, Schulz J, Soltwisch J, Meyer S, Kettling H, Sperling M, Jeibmann A, Dreisewerd K, Francesconi KA, Schwerdtle T, Karst U. Imaging by Elemental and Molecular Mass Spectrometry Reveals the Uptake of an Arsenolipid in the Brain of Drosophila melanogaster. Anal Chem 2016; 88:5258-63. [DOI: 10.1021/acs.analchem.6b00333] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Ann-Christin Niehoff
- Institute
of Inorganic and Analytical Chemistry, University of Münster, Corrensstrasse
30, 48149 Münster, Germany
- NRW
Graduate School of Chemistry, University of Münster, 48149 Münster, Germany
| | - Jacqueline Schulz
- Institute
of Neuropathology, University Hospital Münster, Pottkamp 2, 48149 Münster, Germany
| | - Jens Soltwisch
- Institute
for Hygiene, University of Münster, Robert-Koch-Strasse 41, 48149 Münster, Germany
| | - Sören Meyer
- NRW
Graduate School of Chemistry, University of Münster, 48149 Münster, Germany
- Institute
of Nutritional Science, University of Potsdam, Arthur-Scheunert-Allee 114-116, 14558 Nuthetal, Germany
| | - Hans Kettling
- Institute
for Hygiene, University of Münster, Robert-Koch-Strasse 41, 48149 Münster, Germany
- Interdisciplinary
Center for Clinical Research (IZKF), Münster Medical School, Domagkstrasse
3, 48149 Münster, Germany
| | - Michael Sperling
- Institute
of Inorganic and Analytical Chemistry, University of Münster, Corrensstrasse
30, 48149 Münster, Germany
| | - Astrid Jeibmann
- Institute
of Neuropathology, University Hospital Münster, Pottkamp 2, 48149 Münster, Germany
| | - Klaus Dreisewerd
- Institute
for Hygiene, University of Münster, Robert-Koch-Strasse 41, 48149 Münster, Germany
- Interdisciplinary
Center for Clinical Research (IZKF), Münster Medical School, Domagkstrasse
3, 48149 Münster, Germany
| | - Kevin A. Francesconi
- Institute
of Chemistry−Analytical Chemistry, University of Graz, Universitätsplatz 1, 8010 Graz, Austria
| | - Tanja Schwerdtle
- Institute
of Nutritional Science, University of Potsdam, Arthur-Scheunert-Allee 114-116, 14558 Nuthetal, Germany
| | - Uwe Karst
- Institute
of Inorganic and Analytical Chemistry, University of Münster, Corrensstrasse
30, 48149 Münster, Germany
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44
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Viczek SA, Jensen KB, Francesconi KA. Arsenic-Containing Phosphatidylcholines: A New Group of Arsenolipids Discovered in Herring Caviar. ACTA ACUST UNITED AC 2016; 128:5345-5348. [PMID: 27478276 PMCID: PMC4949577 DOI: 10.1002/ange.201512031] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2015] [Revised: 02/05/2016] [Indexed: 11/07/2022]
Abstract
A new group of arsenolipids based on cell-membrane phosphatidylcholines has been discovered in herring caviar (fish roe). A combination of HPLC with elemental and molecular mass spectrometry was used to identify five arsenic-containing phosphatidylcholines; the same technique applied to salmon caviar identified an arsenic-containing phosphatidylethanolamine. The arsenic group in these membrane lipids might impart particular properties to the molecules not displayed by their non-arsenic analogues. Additionally, the new compounds have human health implications according to recent results showing high cytotoxicity for some arsenolipids.
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Affiliation(s)
- Sandra A Viczek
- Institute of Chemistry: Analytical Chemistry NAWI Graz University of Graz Universitätsplatz 1 8010 Graz Austria
| | - Kenneth B Jensen
- 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
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45
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Viczek SA, Jensen KB, Francesconi KA. Arsenic-Containing Phosphatidylcholines: A New Group of Arsenolipids Discovered in Herring Caviar. Angew Chem Int Ed Engl 2016; 55:5259-62. [PMID: 26996517 PMCID: PMC4950057 DOI: 10.1002/anie.201512031] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2015] [Revised: 02/05/2016] [Indexed: 11/24/2022]
Abstract
A new group of arsenolipids based on cell‐membrane phosphatidylcholines has been discovered in herring caviar (fish roe). A combination of HPLC with elemental and molecular mass spectrometry was used to identify five arsenic‐containing phosphatidylcholines; the same technique applied to salmon caviar identified an arsenic‐containing phosphatidylethanolamine. The arsenic group in these membrane lipids might impart particular properties to the molecules not displayed by their non‐arsenic analogues. Additionally, the new compounds have human health implications according to recent results showing high cytotoxicity for some arsenolipids.
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Affiliation(s)
- Sandra A Viczek
- Institute of Chemistry: Analytical Chemistry, NAWI Graz, University of Graz, Universitätsplatz 1, 8010, Graz, Austria
| | - Kenneth B Jensen
- 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
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46
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Khan M, Jensen KB, Francesconi KA. A method for determining arsenolipids in seawater by HPLC-high resolution mass spectrometry. Talanta 2016; 153:301-5. [PMID: 27130122 DOI: 10.1016/j.talanta.2016.03.030] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2015] [Revised: 03/04/2016] [Accepted: 03/07/2016] [Indexed: 11/17/2022]
Abstract
Arsenic-containing lipids (arsenolipids), naturally occurring arsenicals in algae, have never been detected in seawater even though they might be introduced to the water column on senescence of marine algae or by active excretion. The complex nature of seawater presents an analytical challenge to detect these compounds and to monitor their environmental fate. We developed a simple sample preparation method using liquid-liquid extraction combined with HPLC-high resolution mass spectrometry (HRMS) capable of measuring six standard arsenolipids in seawater at the ng As/L level (<1% of the total arsenic in seawater). The method is suitable for studies on the biotransformation and pathways of arsenolipids in the marine environment. When we applied the method to four samples of natural seawater, however, we did not find any of the six standard arsenolipids.
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Affiliation(s)
- Muslim Khan
- Institute of Chemistry-Analytical Chemistry, NAWI Graz, University of Graz, Universitaetsplatz 1, 8010 Graz, Austria
| | - Kenneth B Jensen
- 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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Arroyo-Abad U, Pfeifer M, Mothes S, Stärk HJ, Piechotta C, Mattusch J, Reemtsma T. Determination of moderately polar arsenolipids and mercury speciation in freshwater fish of the River Elbe (Saxony, Germany). ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2016; 208:458-466. [PMID: 26552521 DOI: 10.1016/j.envpol.2015.10.015] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/09/2015] [Revised: 10/09/2015] [Accepted: 10/10/2015] [Indexed: 06/05/2023]
Abstract
Arsenic and mercury are frequent contaminants in the environment and care must be taken to limit their entrance into the food chain. The toxicity of both elements strongly depends upon their speciation. Total amounts of As and Hg as well as their species were analyzed in muscle and liver of 26 fishes of seven freshwater fish species caught in the River Elbe. The median concentrations of As were 162 μg kg(-1) w.w. in liver and 92 μg kg(-1) w.w. in muscle. The median concentrations of total Hg were 241 μg kg(-1) w.w. in liver and 256 μg kg(-1) w.w. in muscle. While this level of Hg contamination of the freshwater fish in the River Elbe is significantly lower than 20 years ago, it exceeds the recommended environmental quality standard of 20 μg Hg kg(-1) w.w. by a factor of 5-50. However, the European maximum level of 500 μg Hg kg(-1) for fish for human consumption is rarely exceeded. Arsenic-containing fatty acids and hydrocarbons were determined and partially identified in methanolic extracts of the fish by HPLC coupled in parallel to ICP-MS (element specific detection) and ESI-Q-TOF-MS (molecular structure detection). While arsenobetaine was the dominant As species in the fish, six arsenolipids were detected and identified in the extracts of liver tissue in common bream (Abramis brama), ide (Leuciscus idus), asp (Aspius aspius) and northern pike (Esox lucius). Four arsenic-containing fatty acids (AsFA) and two arsenic-containing hydrocarbons (AsHC) are reported in freshwater fish for the first time. With respect to mercury the more toxic MeHg(+) was the major species in muscle tissue (>90% of total Hg) while in liver Hg(2+) and MeHg(+) were of equal importance. The results show the high relevance of element speciation in addition to the determination of total element concentrations to correctly assess the burden of these two elements in fish.
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Affiliation(s)
- Uriel Arroyo-Abad
- BAM-Federal Institute for Materials Research and Testing, Department Analytical Chemistry, Richard-Willstaetter-Strasse 11, 12489 Berlin, Germany; Helmholtz Centre for Environmental Research - UFZ, Department of Analytical Chemistry, Permoserstrasse 15, 04318 Leipzig, Germany
| | - Matthias Pfeifer
- Sächsisches Landesamt für Umwelt, Landwirtschaft und Geologie, Fischereibehörde, Gutsstrasse 1, 02699 Königswartha, Germany
| | - Sibylle Mothes
- Helmholtz Centre for Environmental Research - UFZ, Department of Analytical Chemistry, Permoserstrasse 15, 04318 Leipzig, Germany
| | - Hans-Joachim Stärk
- Helmholtz Centre for Environmental Research - UFZ, Department of Analytical Chemistry, Permoserstrasse 15, 04318 Leipzig, Germany
| | - Christian Piechotta
- BAM-Federal Institute for Materials Research and Testing, Department Analytical Chemistry, Richard-Willstaetter-Strasse 11, 12489 Berlin, Germany
| | - Jürgen Mattusch
- Helmholtz Centre for Environmental Research - UFZ, Department of Analytical Chemistry, Permoserstrasse 15, 04318 Leipzig, Germany.
| | - Thorsten Reemtsma
- Helmholtz Centre for Environmental Research - UFZ, Department of Analytical Chemistry, Permoserstrasse 15, 04318 Leipzig, Germany
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48
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Simultaneous determination of glycine betaine and arsenobetaine in biological samples by HPLC/ICPMS/ESMS and the application to some marine and freshwater fish samples. Microchem J 2015. [DOI: 10.1016/j.microc.2015.04.022] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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49
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Arroyo-Abad U, Hu Z, Findeisen M, Pfeifer D, Mattusch J, Reemtsma T, Piechotta C. Synthesis of two new arsenolipids and their identification in fish. EUR J LIPID SCI TECH 2015. [DOI: 10.1002/ejlt.201400502] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Uriel Arroyo-Abad
- Department of Analytical Chemistry-Reference Materials; BAM-Federal Institute for Materials Research and Testing; Berlin Germany
- Department of Analytical Chemistry; Helmholtz Centre for Environmental Research - UFZ; Leipzig Germany
| | - Zehan Hu
- Department of Analytical Chemistry; Helmholtz Centre for Environmental Research - UFZ; Leipzig Germany
| | - Matthias Findeisen
- Institute of Analytical Chemistry; University of Leipzig; Leipzig Germany
| | - Dietmar Pfeifer
- Department Structure Analysis-NMR Spectroscopy; BAM Federal Institute for Materials Research and Testing; Berlin Germany
| | - Jürgen Mattusch
- Department of Analytical Chemistry; Helmholtz Centre for Environmental Research - UFZ; Leipzig Germany
| | - Thorsten Reemtsma
- Department of Analytical Chemistry; Helmholtz Centre for Environmental Research - UFZ; Leipzig Germany
- Institute of Analytical Chemistry; University of Leipzig; Leipzig Germany
| | - Christian Piechotta
- Department of Analytical Chemistry-Reference Materials; BAM-Federal Institute for Materials Research and Testing; Berlin Germany
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50
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Sele V, Sloth JJ, Julshamn K, Skov K, Amlund H. A study of lipid- and water-soluble arsenic species in liver of Northeast Arctic cod (Gadus morhua) containing high levels of total arsenic. J Trace Elem Med Biol 2015; 30:171-9. [PMID: 25618262 DOI: 10.1016/j.jtemb.2014.12.010] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/07/2014] [Revised: 12/12/2014] [Accepted: 12/28/2014] [Indexed: 11/28/2022]
Abstract
In the present study liver samples (n=26) of Northeast Arctic cod (Gadus morhua), ranging in total arsenic concentrations from 2.1 to 240mg/kg liver wet weight (ww), were analysed for their content of total arsenic and arsenic species in the lipid-soluble and water-soluble fractions. The arsenic concentrations in the lipid fractions ranged from 1.8 to 16.4mg As/kg oil of liver, and a linear correlation (r(2)=0.80, p<0.001) was observed between the total arsenic concentrations in liver and the total arsenic concentrations in the respective lipid fractions of the same livers. The relative proportion of arsenolipids was considerably lower in liver samples with high total arsenic levels (33-240mg/kg ww), which contained from 3 to 7% of the total arsenic in the lipid-soluble fraction. In contrast liver samples with low arsenic concentrations (2.1-33mg/kg ww) contained up to 50% of the total arsenic as lipid-soluble species. Arsenic speciation analysis of the lipid-soluble fractions of the livers, using reversed-phase high performance liquid chromatography coupled to inductively coupled plasma mass spectrometry (HPLC-ICP-MS), revealed the presence of several arsenolipids. Three major arsenic-containing hydrocarbons (C17H39AsO, C19H41AsO and C23H37AsO) and five arsenic-containing fatty acids (C17H35AsO3, C19H39AO3, C19H37AsO3, C23H37AsO3 and C24H37AsO3) were identified using HPLC coupled to quadrupole time-of-flight mass spectrometry (qTOF-MS). Arsenobetaine was the major arsenic species in the water-soluble fraction of the livers, while dimethylarsinate, arsenocholine and inorganic arsenic were minor constituents. Inorganic arsenic accounted for less than 0.1% of the total arsenic in the liver samples.
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Affiliation(s)
- Veronika Sele
- National Institute of Nutrition and Seafood Research (NIFES), Post Box 2029 Nordnes, N-5817 Bergen, Norway; Institute of Biology, University of Bergen, Post Box 7803, N-5020 Bergen, Norway.
| | - Jens J Sloth
- National Institute of Nutrition and Seafood Research (NIFES), Post Box 2029 Nordnes, N-5817 Bergen, Norway; National Food Institute, Technical University of Denmark, Mørkhøj Bygade 19, DK-2860 Søborg, Denmark
| | - Kåre Julshamn
- National Institute of Nutrition and Seafood Research (NIFES), Post Box 2029 Nordnes, N-5817 Bergen, Norway
| | - Kasper Skov
- National Food Institute, Technical University of Denmark, Mørkhøj Bygade 19, DK-2860 Søborg, Denmark
| | - Heidi Amlund
- National Institute of Nutrition and Seafood Research (NIFES), Post Box 2029 Nordnes, N-5817 Bergen, Norway
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