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Wiech M, Bienfait AM, Silva M, Barre J, Sele V, Bank MS, Bérail S, Tessier E, Amouroux D, Azad AM. Organ-specific mercury stable isotopes, speciation and particle measurements reveal methylmercury detoxification processes in Atlantic Bluefin Tuna. JOURNAL OF HAZARDOUS MATERIALS 2024; 473:134699. [PMID: 38795488 DOI: 10.1016/j.jhazmat.2024.134699] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2024] [Revised: 04/24/2024] [Accepted: 05/21/2024] [Indexed: 05/28/2024]
Abstract
Identifying metabolism and detoxification mechanisms of Hg in biota has important implications for biomonitoring, ecotoxicology, and food safety. Compared to marine mammals and waterbirds, detoxification of MeHg in fish is understudied. Here, we investigated Hg detoxification in Atlantic bluefin tuna Thunnus thynnus using organ-specific Hg and Se speciation data, stable Hg isotope signatures, and Hg and Se particle measurements in multiple tissues. Our results provide evidence for in vivo demethylation and biomineralization of HgSe particles, particularly in spleen and kidney. We observed a maximum range of 1.83‰ for δ202Hg between spleen and lean muscle, whereas Δ199Hg values were similar across all tissues. Mean percent methylmercury ranged from 8% in spleen to 90% in lean muscle. The particulate masses of Hg and Se were higher in spleen and kidney (Hg: 61% and 59%, Se: 12% and 6%, respectively) compared to muscle (Hg: 2%, Se: 0.05%). Our data supports the hypothesis of an organ-specific, two-step detoxification of methylmercury in wild marine fish, consisting of demethylation and biomineralization, like reported for waterbirds. While mass dependent fractionation signatures were highly organ specific, stable mass independent fractionation signatures across all tissues make them potential candidates for source apportionment studies of Hg using ABFT.
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Affiliation(s)
| | | | - Marta Silva
- Institute of Marine Research, Bergen, Norway
| | | | | | - Michael S Bank
- Institute of Marine Research, Bergen, Norway; University of Massachusetts Amherst, Amherst, MA, USA
| | | | - Emmanuel Tessier
- Université de Pau et des Pays de l'Adour, E2S UPPA, CNRS, IPREM, Institut des Sciences Analytiques et de Physico-chimie pour l'Environnement et la Matériaux, Pau, France
| | - David Amouroux
- Université de Pau et des Pays de l'Adour, E2S UPPA, CNRS, IPREM, Institut des Sciences Analytiques et de Physico-chimie pour l'Environnement et la Matériaux, Pau, France
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Pałka I, Saniewska D, Bielecka L, Kobos J, Grzybowski W. Uptake and trophic transfer of selenium into phytoplankton and zooplankton of the southern Baltic Sea. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 909:168312. [PMID: 37926260 DOI: 10.1016/j.scitotenv.2023.168312] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Revised: 10/30/2023] [Accepted: 11/01/2023] [Indexed: 11/07/2023]
Abstract
Selenium (Se) is an essential trace element and displays a narrow range of concentration between essentiality and toxicity. Se plays an important role in ameliorating mercury toxicity in organisms. Despite this there are only a few reports concerning Se concentration in plankton, the first link in the trophic chain that determines the uptake and transfer of Se to subsequent trophic levels. This paper aimed to determine Se concentration in water, phytoplankton, and zooplankton in the Baltic Sea, and factors affecting Se absorption from the environment and its transfer to higher trophic levels. Sea water and plankton samples were collected from the Gulf of Gdańsk during 5 cruises (4 seasons: 2019-2022) at 4 research stations. An additional cruise was undertaken in July 2020 in the open waters of the southern Baltic Sea. The median Se concentrations in the Gulf of Gdańsk was 0.25 μg·dm-3. While the median of Se concentration in phytoplankton was 1.11 μg·g-1 and in zooplankton was 1.25 μg·g-1. The biomass of organisms in the phytoplankton and zooplankton in the Gulf of Gdańsk showed an important role in shaping Se concentration. Seasonal trends in Se concentration in zooplankton could be the result of taxa composition changes, changes to dietary intake of Se, changes in growth dilution, or potentially some combination of factors. The highest biomagnification rate occurred in the summer. In contrast, in autumn and winter, when plankton biomass was dominated by the ciliate species Mesodinium rubrum, the highest Se concentration in plankton was measured. Further scientific studies are needed into the active biocomponents of the Se concentration process, including Se speciation, to more fully understand the dynamics of Se concentrations in the pelagic food webs of this and other freshwater and marine systems.
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Affiliation(s)
- Izabela Pałka
- Institute of Oceanology, Polish Academy of Sciences, Marine Chemistry and Biochemistry Department, Powstańców Warszawy 55, 81-712 Sopot, Poland
| | - Dominika Saniewska
- University of Gdańsk, Faculty of Oceanography and Geography, Division of Marine Chemistry and Environmental Protection, Al. Marszałka Piłsudskiego 46, 81-378 Gdynia, Poland.
| | - Luiza Bielecka
- University of Gdańsk, Faculty of Oceanography and Geography, Division of Marine Ecosystems Functioning, Al. Marszałka Piłsudskiego 46, 81-378 Gdynia, Poland
| | - Justyna Kobos
- University of Gdańsk, Faculty of Oceanography and Geography, Division of Marine Biotechnology, Al. Marszałka Piłsudskiego 46, 81-378 Gdynia, Poland
| | - Waldemar Grzybowski
- University of Gdańsk, Faculty of Oceanography and Geography, Division of Marine Chemistry and Environmental Protection, Al. Marszałka Piłsudskiego 46, 81-378 Gdynia, Poland
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Filippini T, Urbano T, Grill P, Malagoli C, Ferrari A, Marchesi C, Natalini N, Michalke B, Vinceti M. Human serum albumin-bound selenium (Se-HSA) in serum and its correlation with other selenium species. J Trace Elem Med Biol 2023; 79:127266. [PMID: 37499550 DOI: 10.1016/j.jtemb.2023.127266] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Revised: 05/23/2023] [Accepted: 07/20/2023] [Indexed: 07/29/2023]
Abstract
INTRODUCTION Selenium (Se) is a trace element with different toxicological and nutritional properties according to its chemical forms. Among the wide range of selenium species, human serum albumin-bound selenium (Se-HSA) has still uncertain composition in terms of organic or inorganic selenium species. This study aimed at investigating the relation between Se-HSA levels with total selenium and the specific organic and inorganic selenium species. METHODS We determined levels of total selenium and selenium species in serum of participants enrolled in two populations of the Emilia-Romagna region, in Northern Italy. Anion exchange chromatography coupled with inductively coupled plasma dynamic reaction cell mass spectrometry was used as quantification method. Correlations between Se-HSA and the other selenium compounds were analyzed using linear regression and restricted cubic spline regression models, adjusted for potential confounders. RESULTS The first cohort comprised 50 participants (men/women: 26/24) with median (interquartile range, IQR) age 50 (55-62) years, while the second was composed of 104 participants (M/W: 50/54), median (IQR) age 48 (44-53) years. Median (IQR) levels of total selenium were 118.5 (109-136) µg/L and 116.5 (106-128) µg/L, respectively, while Se-HSA was 25.5 µg/L (16.2-51.5) and 1.1 (0.03-3.1) µg/L, respectively. In both populations, Se-HSA was positively associated with inorganic selenium species. Conversely, Se-HSA was inversely associated with organic selenium, especially with selenoprotein P-bound-Se (Se-SELENOP) and less strongly with selenomethionine-bound-Se (Se-Met), while the relation was null or even positive with other organic species. Evaluation of non-linear trends showed a substantially positive association with inorganic selenium, particularly selenite, until a concentration of 30 µg/L, above which a plateau was reached. The association with Se-SELENOP was inverse and strong until 100 µg/L, while it was almost null at higher levels. CONCLUSIONS Our findings seem to indicate that Se-HSA incorporates more selenium when circulating levels of inorganic compounds are higher, thus supporting its mainly inorganic nature, particularly at high circulating levels of selenite.
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Affiliation(s)
- Tommaso Filippini
- CREAGEN - Environmental, Genetic and Nutritional Epidemiology Research Center, Department of Biomedical, Metabolic and Neural Sciences, University of Modena and Reggio Emilia, Modena, Italy; School of Public Health, University of California Berkeley, Berkeley, CA, USA.
| | - Teresa Urbano
- CREAGEN - Environmental, Genetic and Nutritional Epidemiology Research Center, Department of Biomedical, Metabolic and Neural Sciences, University of Modena and Reggio Emilia, Modena, Italy
| | - Peter Grill
- Research Unit Analytical BioGeoChemistry, Helmholtz Center Munich - German Research Center for Environmental Health, Neuherberg, Germany
| | - Carlotta Malagoli
- CREAGEN - Environmental, Genetic and Nutritional Epidemiology Research Center, Department of Biomedical, Metabolic and Neural Sciences, University of Modena and Reggio Emilia, Modena, Italy
| | - Angela Ferrari
- CREAGEN - Environmental, Genetic and Nutritional Epidemiology Research Center, Department of Biomedical, Metabolic and Neural Sciences, University of Modena and Reggio Emilia, Modena, Italy
| | - Cristina Marchesi
- Head Office, Azienda USL, IRCCS di Reggio Emilia, Reggio Emilia, Italy
| | | | - Bernhard Michalke
- Research Unit Analytical BioGeoChemistry, Helmholtz Center Munich - German Research Center for Environmental Health, Neuherberg, Germany
| | - Marco Vinceti
- CREAGEN - Environmental, Genetic and Nutritional Epidemiology Research Center, Department of Biomedical, Metabolic and Neural Sciences, University of Modena and Reggio Emilia, Modena, Italy; Department of Epidemiology, Boston University School of Public Health, Boston, MA, USA
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Direct solid sampling of biological species for the rapid determination of selenium by high-resolution continuum source graphite furnace atomic absorption spectrometry. Anal Chim Acta 2022; 1202:339637. [DOI: 10.1016/j.aca.2022.339637] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Revised: 01/27/2022] [Accepted: 02/17/2022] [Indexed: 11/17/2022]
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Atasoy M, Kula İ. Speciation and determination of inorganic selenium species in certain fish and food samples by gold-coated W-coil atom trap hydride generation atomic absorption spectrometry. Food Chem 2022; 369:130938. [PMID: 34474290 DOI: 10.1016/j.foodchem.2021.130938] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2021] [Revised: 08/18/2021] [Accepted: 08/22/2021] [Indexed: 11/30/2022]
Abstract
A very sensitive, selective, rapid and easy gas-phase preconcentration based method is presented for the determination and speciation of inorganic selenium in chicken meat, poultry eggs, mullet fish (Mugil Cephalus) and sea bass fish (Dicentrarchus Labrax) samples. Gold-coated W-coil atom trap was used to increase the sensitivity of conventional HG-AAS. LOD and LOQ values were calculated to be 0.021 μg/L and 0.070 μg/L, respectively. RSD% was found as 3.24. The sensitivity was increased 20 times more with the method used in the current study than the HG-AAS method. The interference effects of other metals on Se signal were significantly reduced by trap. SEM and EDX images of both bare and gold coated W-coil atom trap were screened. In order to check the accuracy of the method, "DOLT-5: Dogfish Liver" standard reference material was used and there was a good agreement between certified and found values at the 95% confidence level.
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Affiliation(s)
- Muhammet Atasoy
- Muğla Sıtkı Koçman University, Muğla Vocational School, Chemistry and Chemical Treatment Technologies Department, Chemistry Technology Program, Menteşe, 48000 Muğla, Turkey.
| | - İbrahim Kula
- Muğla Sıtkı Koçman University, Department of Chemistry, 48000 Muğla, Turkey
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Fernández-Bautista T, Gómez-Gómez B, Palacín-García R, Gracia-Lor E, Pérez-Corona T, Madrid Y. Analysis of Se and Hg biomolecules distribution and Se speciation in poorly studied protein fractions of muscle tissues of highly consumed fishes by SEC-UV-ICP-MS and HPLC-ESI-MS/MS. Talanta 2022; 237:122922. [PMID: 34736659 DOI: 10.1016/j.talanta.2021.122922] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2021] [Revised: 09/29/2021] [Accepted: 09/30/2021] [Indexed: 11/28/2022]
Abstract
Distribution of Se and Hg in sarcoplasmic, myofibrillar and alkali-soluble protein fractions extracted from muscle tissue of tuna, swordfish and salmon (wild vs. farmed) is investigated for the first time. SEC-UV-ICP-MS analyses revealed that Se and Hg are mostly bound to proteins of 2-12 kDa and up to 574 kDa, respectively. Moreover, Se and Hg appeared associated to proteins of same molecular weight, evidencing that Se-Hg interaction may occur at the level of the fish tissue evaluated. Important differences were found between farmed and wild salmon, suggesting the effect of the type of feed and growing conditions on Se and Hg content and their distribution through protein fractions. Finally, Se speciation studies performed by HPLC-ICP-MS and confirmed by HPLC-ESI-MS/MS showed SeMeSeCys as the only Se specie found in soluble, sarcoplasmic, myofibrillar and alkali-soluble proteins of all fishes analysed, except in soluble proteins extracted from tuna, where SeMet was also identified.
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Affiliation(s)
- Tamara Fernández-Bautista
- Departamento de Química Analítica, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, 28040, Madrid, Spain
| | - Beatriz Gómez-Gómez
- Departamento de Química Analítica, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, 28040, Madrid, Spain.
| | - Roberto Palacín-García
- Departamento de Química Analítica, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, 28040, Madrid, Spain
| | - Emma Gracia-Lor
- Departamento de Química Analítica, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, 28040, Madrid, Spain
| | - Teresa Pérez-Corona
- Departamento de Química Analítica, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, 28040, Madrid, Spain
| | - Yolanda Madrid
- Departamento de Química Analítica, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, 28040, Madrid, Spain
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Craig RJ, Yushenova IA, Rodriguez F, Arkhipova IR. An ancient clade of Penelope-like retroelements with permuted domains is present in the green lineage and protists, and dominates many invertebrate genomes. Mol Biol Evol 2021; 38:5005-5020. [PMID: 34320655 PMCID: PMC8557442 DOI: 10.1093/molbev/msab225] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
Penelope-like elements (PLEs) are an enigmatic clade of retrotransposons whose reverse transcriptases (RTs) share a most recent common ancestor with telomerase RTs. The single ORF of canonical endonuclease (EN)+ PLEs encodes RT and a C-terminal GIY–YIG EN that enables intrachromosomal integration, whereas EN− PLEs lack EN and are generally restricted to chromosome termini. EN+ PLEs have only been found in animals, except for one case of horizontal transfer to conifers, whereas EN− PLEs occur in several kingdoms. Here, we report a new, deep-branching PLE clade with a permuted domain order, whereby an N-terminal GIY–YIG EN is linked to a C-terminal RT by a short domain with a characteristic CxC motif. These N-terminal EN+ PLEs share a structural organization, including pseudo-LTRs and complex tandem/inverted insertions, with canonical EN+ PLEs from Penelope/Poseidon, Neptune, and Nematis clades, and show insertion bias for microsatellites, but lack canonical hammerhead ribozyme motifs. However, their phylogenetic distribution is much broader. The Naiads, found in numerous invertebrate phyla, can reach tens of thousands of copies per genome. In spiders and clams, Naiads independently evolved to encode selenoproteins containing multiple selenocysteines. Chlamys, which lack the CCHH motif universal to PLE ENs, occur in green algae, spike mosses (targeting ribosomal DNA), and slime molds. Unlike canonical PLEs, RTs of N-terminal EN+ PLEs contain the insertion-in-fingers domain (IFD), strengthening the link between PLEs and telomerases. Additionally, we describe Hydra, a novel metazoan C-terminal EN+ clade. Overall, we conclude that PLE diversity, taxonomic distribution, and abundance are comparable with non-LTR and LTR-retrotransposons.
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Affiliation(s)
- Rory J Craig
- Institute of Evolutionary Biology, University of Edinburgh, Edinburgh, UK
| | - Irina A Yushenova
- Josephine Bay Paul Center for Comparative Molecular Biology and Evolution, Marine Biological Laboratory, Woods Hole, MA, USA
| | - Fernando Rodriguez
- Josephine Bay Paul Center for Comparative Molecular Biology and Evolution, Marine Biological Laboratory, Woods Hole, MA, USA
| | - Irina R Arkhipova
- Josephine Bay Paul Center for Comparative Molecular Biology and Evolution, Marine Biological Laboratory, Woods Hole, MA, USA
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Schmidt L, Novo DLR, Druzian GT, Landero JA, Caruso J, Mesko MF, Flores EMM. Influence of culinary treatment on the concentration and on the bioavailability of cadmium, chromium, copper, and lead in seafood. J Trace Elem Med Biol 2021; 65:126717. [PMID: 33647737 DOI: 10.1016/j.jtemb.2021.126717] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/19/2020] [Revised: 11/21/2020] [Accepted: 01/07/2021] [Indexed: 10/22/2022]
Abstract
BACKGROUND Seafood present important advantages for human nutrition, but it can also accumulate high levels of toxic and potentially toxic elements. Culinary treatments could influence seafood chemical element content and element bioavailability. In this study, the influence of culinary treatments on the total concentration and on the bioavailability of Cd, Cr, Cu and Pb in shark, shrimp, squid, oyster, and scallop was assessed. METHODS Boiling, frying, and sautéing with or without seasonings (salt, lemon juice and garlic) were evaluated. Total concentration and bioavailability of Cd, Cr, Cu and Pb in seafood after all these culinary treatments were compared with those in uncooked samples. Analytes were determined by triple-quadrupole inductively coupled plasma mass spectrometry (ICP-MS/MS). An alternative to express the results avoiding underestimated or overestimated values was proposed. RESULTS The analytes concentration in seafood without culinary treatment varied from 0.0030 μg g-1 (shrimp) to 0.338 μg g-1 (oyster) for Cd; 0.010 μg g-1 (squid) to 0.036 μg g-1 (oyster) for Cr; 0.088 μg g-1 (scallop) to 8.63 μg g-1 (oyster) for Cu, and < 0.005 μg g-1 (shrimp, squid and oyster) to 0.020 μg g-1 (shark) for Pb. Only Cd (in scallop) was influenced by culinary treatments (reduction from 37 to 53 % after boiling, frying, and sautéing). Bioavailability percentage varied from 11% (oyster) for Cd; 18% (oyster) to 41% (shark) for Cr; 6% (shark) for Cu, and 8% (oyster) for Pb. Bioavailability percentage was not influenced by culinary treatments. CONCLUSION Cadmium concentration was reduced in scallop after some culinary treatments (reduction o 37-53% after boiling, frying, and sautéing), but bioavailability percentage was not influenced. The employed analytical method was adequate for the purpose, presenting import results for food safety assessment about the influence of culinary treatments on metals concentration and bioavailability in seafood.
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Affiliation(s)
- Lucas Schmidt
- Departamento de Química, Universidade Federal de Santa Maria, 97105-900, Santa Maria, RS, Brazil
| | - Diogo La Rosa Novo
- Departamento de Química, Universidade Federal de Santa Maria, 97105-900, Santa Maria, RS, Brazil; Centro de Ciências Químicas, Farmacêuticas e de Alimentos, Universidade Federal de Pelotas, 96160-000, Capão do Leão, RS, Brazil
| | - Gabriel Toneto Druzian
- Departamento de Química, Universidade Federal de Santa Maria, 97105-900, Santa Maria, RS, Brazil
| | - Julio Alberto Landero
- Metallomics Center, Department of Chemistry, University of Cincinnati, 45221, Cincinnati, OH, USA
| | - Joseph Caruso
- Metallomics Center, Department of Chemistry, University of Cincinnati, 45221, Cincinnati, OH, USA
| | - Marcia Foster Mesko
- Centro de Ciências Químicas, Farmacêuticas e de Alimentos, Universidade Federal de Pelotas, 96160-000, Capão do Leão, RS, Brazil
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Determination of Selenium Species in Muscle, Heart, and Liver Tissues of Lambs Using Mass Spectrometry Methods. Animals (Basel) 2020; 10:ani10050808. [PMID: 32392714 PMCID: PMC7277398 DOI: 10.3390/ani10050808] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2020] [Revised: 05/01/2020] [Accepted: 05/03/2020] [Indexed: 01/21/2023] Open
Abstract
Simple Summary The objective of the project was to evaluate speciation of selenium (Se) in various tissues (the liver, heart, or muscles) obtained from lambs fed with a diet enriched with an inorganic and organic chemical form of Se (i.e., selenite and Se-enriched yeast, respectively). Abstract Identification and quantification of the selenium species in biological tissues is imperative, considering the need to properly understand its metabolism and its importance in various field of sciences, especially nutrition science. Although a number of studies deals with the speciation of selenium, speciation analysis is still far from being a routine task, and so far strongly depends on the type of the samples. We present a study aimed to examine speciation analysis of Se in tissues of livers, muscles, and hearts obtained from lambs, namely in liver, muscle, and heart. The studied lambs were fed with the diet enriched with an inorganic (as sodium selenate) and organic chemical form of Se (as Se-enriched yeast) compounds with simultaneous addition of fish oil (FO) and carnosic acid (CA). The first part of the work was focused on the optimization of the extraction procedure of selenium compounds from tissues. Next, hyphenated high performance liquid chromatography and inductively coupled plasma mass spectrometry (HPLC–ICP–MS) was used for the identification of five seleno-compounds—Se-methionine (SeMet), Se-cystine (SeCys2), Se-methyl-Se-cysteine (SeMetSeCys), and Se(IV) and Se(VI). Verification of the identified seleno-compounds was achieved using triple-quadrupole mass spectrometer coupled to high performance liquid chromatography (HPLC–ESI–MS/MS). The applied procedure allowed for quantitative analysis of SeMet, SeCys2, and SeMetSeCys, in biological tissues. The developed analytical protocol is feasible for speciation analysis of small molecular seleno-compounds in animals samples.
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Alhasan R, Kharma A, Leroy P, Jacob C, Gaucher C. Selenium Donors at the Junction of Inflammatory Diseases. Curr Pharm Des 2020; 25:1707-1716. [PMID: 31267853 DOI: 10.2174/1381612825666190701153903] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2019] [Accepted: 06/18/2019] [Indexed: 12/25/2022]
Abstract
Selenium is an essential non-metal trace element, and the imbalance in the bioavailability of selenium is associated with many diseases ranking from acute respiratory distress syndrome, myocardial infarction and renal failure (Se overloading) to diseases associated with chronic inflammation like inflammatory bowel diseases, rheumatoid arthritis, and atherosclerosis (Se unload). The only source of selenium is the diet (animal and cereal sources) and its intestinal absorption is limiting for selenocysteine and selenomethionine synthesis and incorporation in selenoproteins. In this review, after establishing the link between selenium and inflammatory diseases, we envisaged the potential of selenium nanoparticles and organic selenocompounds to compensate the deficit of selenium intake from the diet. With high selenium loading, nanoparticles offer a low dosage to restore selenium bioavailability whereas organic selenocompounds can play a role in the modulation of their antioxidant or antiinflammatory activities.
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Affiliation(s)
- Rama Alhasan
- Division of Bioorganic Chemistry, School of Pharmacy, Saarland University, D-66123 Saarbrucken, Germany
| | - Ammar Kharma
- Division of Bioorganic Chemistry, School of Pharmacy, Saarland University, D-66123 Saarbrucken, Germany
| | - Pierre Leroy
- Universite de Lorraine, CITHEFOR, F-54000 Nancy, France
| | - Claus Jacob
- Division of Bioorganic Chemistry, School of Pharmacy, Saarland University, D-66123 Saarbrucken, Germany
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Skalny AV, Mona W, Kao R, Skalnaya MG, Huang PT, Wu CC, Ajsuvakova OP, Skalnaya OA, Tinkov AA. Hair Trace Element Levels in Han and Indigenous Hualien Inhabitants in Taiwan. Biol Trace Elem Res 2019; 191:1-9. [PMID: 30465167 DOI: 10.1007/s12011-018-1581-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/25/2018] [Accepted: 11/13/2018] [Indexed: 10/27/2022]
Abstract
The objective of the present study was to assess the impact of ethnicity on hair trace element content in Han and aboriginal inhabitants of Hualien in Taiwan. Fifty Han (female/male = 35/15) and 50 aboriginal (female/male = 40/10) Hualien inhabitants aged 40-60 years were involved in the present study. Anthropometric data and dietary patterns were recorded. Hair mineral, essential, and toxic trace element levels were assessed using inductively coupled plasma mass spectrometry at NexION 300D (PerkinElmer Inc., USA) equipped with ESI SC-2 DX4 autosampler (Elemental Scientific Inc., USA). No group difference in gender, age, body weight, height, or physical activity was observed. Fish intake was more frequent in Han inhabitants, whereas aborigines consumed significantly more nuts. Indigenous people were characterized by higher hair Al (45%), Ca (threefold), Co (71%), Fe (twofold), I (74%), K (60%), Mg (2.5-fold), Na (62%), P (6%), Sn (78%), and V (46%) content. In turn, Han Hualien inhabitants had higher hair Be (twofold), Li, Se, Si levels as compared to indigenous counterparts. Multiple regression analysis demonstrated that ethnicity was significantly associated with hair Ca (β = 0.302), Mn (β = 0.284), P (β = 0.387), and Se (β = - 0.310) levels after adjustment for other confounders. At the same time, the overall models were significant for Ca, Mn, Se, and As. The obtained data may provide a background for monitoring and correction of trace element status in patients of different ethnic groups. However, further detailed studies are required to highlight the mechanisms underlying the observed associations.
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Affiliation(s)
- Anatoly V Skalny
- Yaroslavl State University, Sovetskaya St., 14, Yaroslavl, 150000, Russia
- Peoples' Friendship University of Russia (RUDN University), Moscow, Russia
- IM Sechenov First Moscow State Medical University, Moscow, Russia
| | - Watan Mona
- Jian Township Health Center, Hualien, Taiwan
| | - Ryan Kao
- Upper School, Taipei American School, Taipei, Taiwan
| | - Margarita G Skalnaya
- Peoples' Friendship University of Russia (RUDN University), Moscow, Russia
- IM Sechenov First Moscow State Medical University, Moscow, Russia
| | | | - Cheng-Chi Wu
- Neomedi clinic, Shijian road, New Taipei, Taiwan
| | - Olga P Ajsuvakova
- Yaroslavl State University, Sovetskaya St., 14, Yaroslavl, 150000, Russia
- Peoples' Friendship University of Russia (RUDN University), Moscow, Russia
- IM Sechenov First Moscow State Medical University, Moscow, Russia
| | | | - Alexey A Tinkov
- Yaroslavl State University, Sovetskaya St., 14, Yaroslavl, 150000, Russia.
- Peoples' Friendship University of Russia (RUDN University), Moscow, Russia.
- IM Sechenov First Moscow State Medical University, Moscow, Russia.
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Processive Recoding and Metazoan Evolution of Selenoprotein P: Up to 132 UGAs in Molluscs. J Mol Biol 2019; 431:4381-4407. [PMID: 31442478 DOI: 10.1016/j.jmb.2019.08.007] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2019] [Revised: 08/05/2019] [Accepted: 08/11/2019] [Indexed: 02/06/2023]
Abstract
Selenoproteins typically contain a single selenocysteine, the 21st amino acid, encoded by a context-redefined UGA. However, human selenoprotein P (SelenoP) has a redox-functioning selenocysteine in its N-terminal domain and nine selenium transporter-functioning selenocysteines in its C-terminal domain. Here we show that diverse SelenoP genes are present across metazoa with highly variable numbers of Sec-UGAs, ranging from a single UGA in certain insects, to 9 in common spider, and up to 132 in bivalve molluscs. SelenoP genes were shaped by a dynamic evolutionary process linked to selenium usage. Gene evolution featured modular expansions of an ancestral multi-Sec domain, which led to particularly Sec-rich SelenoP proteins in many aquatic organisms. We focused on molluscs, and chose Pacific oyster Magallana gigas as experimental model. We show that oyster SelenoP mRNA with 46 UGAs is translated full-length in vivo. Ribosome profiling indicates that selenocysteine specification occurs with ∼5% efficiency at UGA1 and approaches 100% efficiency at distal 3' UGAs. We report genetic elements relevant to its expression, including a leader open reading frame and an RNA structure overlapping the initiation codon that modulates ribosome progression in a selenium-dependent manner. Unlike their mammalian counterparts, the two SECIS elements in oyster SelenoP (3'UTR recoding elements) do not show functional differentiation in vitro. Oysters can increase their tissue selenium level up to 50-fold upon supplementation, which also results in extensive changes in selenoprotein expression.
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Annibaldi A, Truzzi C, Carnevali O, Pignalosa P, Api M, Scarponi G, Illuminati S. Determination of Hg in Farmed and Wild Atlantic Bluefin Tuna ( Thunnus thynnus L. ) Muscle. Molecules 2019; 24:molecules24071273. [PMID: 30939866 PMCID: PMC6480458 DOI: 10.3390/molecules24071273] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2019] [Revised: 03/22/2019] [Accepted: 03/26/2019] [Indexed: 11/16/2022] Open
Abstract
Mercury (Hg) is a well-known toxic element, diffused in the environment, especially in the Mediterranean Sea which is rich in cinnabar deposits. Mercury bioaccumulation in fish is of great concern, especially for top-level aquatic predators (e.g., shark, tuna, swordfish) and above all for species of large human consumption and high nutritional value. This work aimed to determine Hg concentrations in farmed and wild Atlantic Bluefin tuna (Thunnus thynnus) caught in the Mediterranean area in order to evaluate the level of Hg bioaccumulation. selenium (Se) content was also determined, since this element is an antagonist of mercury toxicity. Mercury and Se were analysed by atomic absorption spectrometry after microwave digestion of the samples. Hg content in farmed tuna was below the legal limit (1 mg/kg, wet weight, w.w.) for all specimens (0.6 ± 0.2 mg/kg), whereas the wild ones had a content over the limit (1.7 ± 0.6 mg/kg); Se concentration was higher in farmed specimens (1.1 ± 0.9 mg/kg) compared to wild ones (0.6 ± 0.3 mg/kg). A safe seafood could show a Se/Hg ratio >1 and a health benefit value (HBVSe) > 0: farmed tuna had higher values than the wild specimens (Se/Hg 5.48 vs. 1.32; HBVSe 11.16 vs. 0.29). These results demonstrate that for Hg, there is a better risk/benefit ratio in farmed T. thynnus. making it safer than wild tuna.
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Affiliation(s)
- Anna Annibaldi
- Dipartimento di Scienze della Vita e dell'Ambiente, Università Politecnica delle Marche, Via Brecce Bianche, 60131 Ancona, Italy.
| | - Cristina Truzzi
- Dipartimento di Scienze della Vita e dell'Ambiente, Università Politecnica delle Marche, Via Brecce Bianche, 60131 Ancona, Italy.
| | - Oliana Carnevali
- Dipartimento di Scienze della Vita e dell'Ambiente, Università Politecnica delle Marche, Via Brecce Bianche, 60131 Ancona, Italy.
| | | | - Martina Api
- Dipartimento di Scienze della Vita e dell'Ambiente, Università Politecnica delle Marche, Via Brecce Bianche, 60131 Ancona, Italy.
| | - Giuseppe Scarponi
- Dipartimento di Scienze della Vita e dell'Ambiente, Università Politecnica delle Marche, Via Brecce Bianche, 60131 Ancona, Italy.
| | - Silvia Illuminati
- Dipartimento di Scienze della Vita e dell'Ambiente, Università Politecnica delle Marche, Via Brecce Bianche, 60131 Ancona, Italy.
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Constantinescu-Aruxandei D, Frîncu RM, Capră L, Oancea F. Selenium Analysis and Speciation in Dietary Supplements Based on Next-Generation Selenium Ingredients. Nutrients 2018; 10:E1466. [PMID: 30304813 PMCID: PMC6213372 DOI: 10.3390/nu10101466] [Citation(s) in RCA: 55] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2018] [Revised: 10/02/2018] [Accepted: 10/03/2018] [Indexed: 12/27/2022] Open
Abstract
Selenium is essential for humans and the deficit of Se requires supplementation. In addition to traditional forms such as Se salts, amino acids, or selenium-enriched yeast supplements, next-generation selenium supplements, with lower risk for excess supplementation, are emerging. These are based on selenium forms with lower toxicity, higher bioavailability, and controlled release, such as zerovalent selenium nanoparticles (SeNPs) and selenized polysaccharides (SPs). This article aims to focus on the existing analytical systems for the next-generation Se dietary supplement, providing, at the same time, an overview of the analytical methods available for the traditional forms. The next-generation dietary supplements are evaluated in comparison with the conventional/traditional ones, as well as the analysis and speciation methods that are suitable to reveal which Se forms and species are present in a dietary supplement. Knowledge gaps and further research potential in this field are highlighted. The review indicates that the methods of analysis of next-generation selenium supplements should include a step related to chemical species separation. Such a step would allow a proper characterization of the selenium forms/species, including molecular mass/dimension, and substantiates the marketing claims related to the main advantages of these new selenium ingredients.
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Affiliation(s)
- Diana Constantinescu-Aruxandei
- National Research & Development Institute for Chemistry and Petrochemistry ICECHIM, 202 Splaiul Independentei, 060021 Bucharest, Romania.
| | - Rodica Mihaela Frîncu
- INCDCP-ICECHIM Calarasi Subsidiary, 7A Nicolae Titulescu St., 915300 Lehliu Gara, Romania.
| | - Luiza Capră
- National Research & Development Institute for Chemistry and Petrochemistry ICECHIM, 202 Splaiul Independentei, 060021 Bucharest, Romania.
| | - Florin Oancea
- National Research & Development Institute for Chemistry and Petrochemistry ICECHIM, 202 Splaiul Independentei, 060021 Bucharest, Romania.
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Sele V, Ørnsrud R, Sloth JJ, Berntssen MHG, Amlund H. Selenium and selenium species in feeds and muscle tissue of Atlantic salmon. J Trace Elem Med Biol 2018; 47:124-133. [PMID: 29544799 DOI: 10.1016/j.jtemb.2018.02.005] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/12/2017] [Revised: 02/04/2018] [Accepted: 02/05/2018] [Indexed: 01/20/2023]
Abstract
Selenium (Se) is an essential element for animals, including fish. Due to changes in feed composition for Atlantic salmon (Salmo salar), it may be necessary to supplement feeds with Se. In the present work, the transfer of Se and Se species from feed to muscle of Atlantic salmon fed Se supplemented diets was studied. Salmon were fed basal fish feed (0.35 mg Se/kg and 0.89 mg Se/kg feed), or feed supplemented either with selenised yeast or sodium selenite, at low (1-2 mg Se/kg feed) and high (15 mg Se/kg feed) levels, for 12 weeks. For the extraction of Se species from fish muscle, enzymatic cleavage with protease type XIV was applied. The extraction methods for Se species from fish feed were optimised, and two separate extraction procedures were applied, 1) enzymatic cleavage for organic Se supplemented feeds and 2) weak alkaline solvent for inorganic Se supplemented feeds, respectively. For selenium speciation analysis in feed and muscle tissue anion-exchange HPLC-ICP-MS for analysis of inorganic Se species and cation-exchange HPLC-ICP-MS for analysis of organic Se species, were applied. In addition, reversed phase HPLC-ICP-MS was applied for analysis of selenocysteine (SeCys) in selected muscle samples. The results demonstrated that supplemented Se (organic and inorganic) accumulated in muscle of Atlantic salmon, and a higher retention of Se was seen in the muscle of salmon fed organic Se diets. Selenomethionine (SeMet) was the major Se species in salmon fed basal diets and diets supplemented with organic Se, accounting for 91-118% of the total Se. In contrast, for muscle of salmon fed high inorganic Se diet, SeMet accounted for 30% of the total Se peaks detected. Several unidentified Se peaks were detected, in the fish fed high inorganic diet, and analysis showed indicated SeCys is a minor Se species present in this fish muscle tissue.
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Affiliation(s)
- Veronika Sele
- Institute of Marine Research, PO Box 1870, Nordnes, N-5817 Bergen, Norway.
| | - Robin Ørnsrud
- Institute of Marine Research, PO Box 1870, Nordnes, N-5817 Bergen, Norway
| | - Jens J Sloth
- Institute of Marine Research, PO Box 1870, Nordnes, N-5817 Bergen, Norway; National Food Institute, Technical University of Denmark, Kemitorvet B202, DK-2800 Kgs. Lyngby, Denmark
| | - Marc H G Berntssen
- Institute of Marine Research, PO Box 1870, Nordnes, N-5817 Bergen, Norway
| | - Heidi Amlund
- Institute of Marine Research, PO Box 1870, Nordnes, N-5817 Bergen, Norway
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Sobiecki JG. Vegetarianism and colorectal cancer risk in a low-selenium environment: effect modification by selenium status? A possible factor contributing to the null results in British vegetarians. Eur J Nutr 2017; 56:1819-1832. [PMID: 28191611 PMCID: PMC5534195 DOI: 10.1007/s00394-016-1364-0] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2015] [Accepted: 12/14/2016] [Indexed: 12/14/2022]
Abstract
BACKGROUND Despite the consistent findings of lower total cancer incidence in vegetarians than in meat-eaters in the UK, the results of studies of colorectal cancer (CRC) risk in British vegetarians have largely been null. This was in contrast to the hypothesis of a decreased risk of CRC in this population due to null intake of red and processed meats and increased intake of fibre. Although the data are inconsistent, it has been suggested that selenium (Se) status may influence CRC risk. METHODS A literature review was performed of studies on CRC risk in vegetarians, Se intakes and status in vegetarians, and changes of Se intakes and status in the UK throughout the follow-up periods of studies on CRC risk in British vegetarians. RESULTS Vegetarians in the UK and other low-Se areas were found to have low Se intakes and status compared to non-vegetarians. There was some evidence of a reverse J-shaped curve of Se intakes and status in the UK throughout the last three decades. These presumed patterns were followed by the changes in CRC mortality or incidence in British vegetarians during this period. CONCLUSIONS Available data on Se intake and status in British vegetarians, as well as the relationship between their secular changes in the UK and changes in CRC risk in this dietary group, are compatible with the hypothesis that low Se status may contribute to the largely null results of studies of CRC risk in vegetarians in the UK.
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Affiliation(s)
- Jakub G Sobiecki
- Cancer Epidemiology Unit, Nuffield Department of Population Health, Richard Doll Building, University of Oxford, Roosevelt Drive, Oxford, OX3 7LF, UK.
- Department of Epidemiology and Biostatistics, School of Public Health, Imperial College London, St Mary's Campus, London, W2 1PG, UK.
- Department of Paediatrics, Nutrition and Metabolic Disorders, Children's Memorial Health Institute, Al. Dzieci Polskich 20, Warsaw, 04-730, Poland.
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Wang LH, Zhang YH. Electrochemical Oxidation of l-selenomethionine and Se-methylseleno-l-cysteine at a Thiol-Compound-Modified Gold Electrode: Its Application in a Flow-Through Voltammetric Sensor. SENSORS 2017; 17:s17020383. [PMID: 28212326 PMCID: PMC5336127 DOI: 10.3390/s17020383] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/28/2016] [Revised: 02/08/2017] [Accepted: 02/14/2017] [Indexed: 12/12/2022]
Abstract
A flow-electrolytic cell that consists of a bare gold wire or of different thiol-compound-modified gold electrodes (such as 2,4-thiazolidinedione, 2-mercapto-5-thiazoline, 2-mercaptothiazoline, l-cysteine, thioglycolic acid) was designed to be used in a voltammetric detector to identify l-selenomethionine and Se-methylseleno-l-cysteine using high-performance liquid chromatography. Both l-selenomethionine and Se-methylseleno-l-cysteine are more efficiently electrochemically oxidized on a thiol/gold than on a bare gold electrode. For the DC mode, and for measurements with suitable experimental parameters, a linear concentration from 10 to 1600 ng·mL−1 was found. The limits of quantification for l-selenomethionine and Se-methylseleno-l-cysteine were below 10 ng·mL−1. The method can be applied to the quantitative determination of l-selenomethionine and Se-methylseleno-l-cysteine in commercial selenium-containing supplement products. Findings using high-performance liquid chromatography with a flow-through voltammetric detector and ultraviolet detector are comparable.
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Affiliation(s)
- Lai-Hao Wang
- Department of Medical Chemistry, Chia Nan University of Pharmacy and Science, 60 Erh-Jen Road, Section 1, Rende, Tainan 71743, Taiwan.
| | - Yu-Han Zhang
- Department of Medical Chemistry, Chia Nan University of Pharmacy and Science, 60 Erh-Jen Road, Section 1, Rende, Tainan 71743, Taiwan.
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Jagtap R, Maher W, Krikowa F, Ellwood MJ, Foster S. Measurement of selenomethionine and selenocysteine in fish tissues using HPLC-ICP-MS. Microchem J 2016. [DOI: 10.1016/j.microc.2016.04.021] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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19
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Filatova DG, Es’kina VV, Chizhov AS, Rumyantseva MN, Shaposhnik PA, Baranovskaya VB, Karpov YA. Determination of selenium and cadmium dopants in nanocomposites based on zinc and indium oxides by high resolution continuous source electrothermal atomic absorption spectrometry and inductively coupled plasma mass spectrometry. JOURNAL OF ANALYTICAL CHEMISTRY 2016. [DOI: 10.1134/s106193481605004x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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20
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Chen J, Zhu Y, Zhang Y. Room-temperature phosphorescence probe based on Mn-doped ZnS quantum dots for the sensitive and selective detection of selenite. RSC Adv 2016. [DOI: 10.1039/c6ra09702b] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
Abstract
Selenite was selectively and sensitively detected based on the room-temperature phosphorescence quenching of Mn–ZnS QDs caused by HSe− from the reaction of selenite and glutathione.
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Affiliation(s)
- Jialing Chen
- Department of Chemistry
- College of Chemistry and Chemical Engineering
- Key Laboratory of Spectrochemical Analysis & Instrumentation
- Ministry of Education
- Xiamen University
| | - Yaxian Zhu
- Department of Chemistry
- College of Chemistry and Chemical Engineering
- Key Laboratory of Spectrochemical Analysis & Instrumentation
- Ministry of Education
- Xiamen University
| | - Yong Zhang
- State Key Laboratory of Marine Environmental Science of China (Xiamen University)
- College of Environment and Ecology
- Xiamen University
- Xiamen 361102
- China
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21
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Jagtap R, Maher W. Determination of selenium species in biota with an emphasis on animal tissues by HPLC–ICP-MS. Microchem J 2016. [DOI: 10.1016/j.microc.2015.07.014] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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22
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CAO YP, YAN LZ, HUANG HL, DENG BY. Determination of Selenium Species in Burdock and Panax Notoginseng Using Ultrasonic Assistant Extraction Combined with High Performance Liquid Chromatography-Inductively Coupled Plasma-Mass Spectrometry. CHINESE JOURNAL OF ANALYTICAL CHEMISTRY 2015. [DOI: 10.1016/s1872-2040(15)60859-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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