Iodine and bromine in fish consumed by indigenous peoples of the Russian Arctic
| Autor: | Valery Chashchin, Dag G. Ellingsen, Magny S. Thomassen, Tatiana Sorokina, Alexandra Onuchina, Evert Nieboer, Yulia Varakina, Nikita Sobolev, Yngvar Thomassen, Andrey Aksenov, Elena Plakhina |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
0301 basic medicine
chemistry.chemical_element lcsh:Medicine Medicinal chemistry Fresh Water Article Arsenic Russia 03 medical and health sciences Selenium Animal science Fish Products Animals Humans Seawater lcsh:Science Indigenous Peoples Pike computer.programming_language Cadmium 030109 nutrition & dietetics Multidisciplinary biology Arctic Regions lcsh:R Fishes Broad whitefish Mercury biology.organism_classification Bromine Mercury (element) Zinc 030104 developmental biology chemistry Arctic Environmental chemistry lcsh:Q Atlantic cod computer Analytical chemistry Inorganic chemistry Copper Iodine |
| Zdroj: | Scientific Reports Scientific Reports, Vol 10, Iss 1, Pp 1-8 (2020) |
| Popis: | Fish muscle may constitute one of the main sources of iodine (I) for the indigenous peoples of the Russian Arctic, although limited information is available about its content in commonly consumed fish species. In the current study, bromine (Br), I, the essential elements (copper, selenium and zinc) and other non-essential elements — specifically mercury, arsenic (As), cadmium, lead and nickel — have been quantified in 10 fish species consumed by people living in the Nenets and Chukotka Regions. Fish muscle was analysed by ICP-MS after nitric acid or tetramethylammonium hydroxide digestion. Certified reference materials were employed and concentrations are reported as geometric means (GMs). Atlantic cod (6.32 mg/kg) and navaga (0.934 mg/kg) contained substantially higher amounts of I than all other fish species, while broad whitefish had the lowest (0.033 mg/kg). By comparison, navaga contained more Br (14.5 mg/kg) than the other fish species, ranging 7.45 mg/kg in Atlantic cod to 2.39 mg/kg in northern pike. A significant inter-fish association between As and I in freshwater and marine fish was observed, suggesting common sources and perhaps parallel absorption patterns. Only Atlantic cod and, to lesser extent, navaga constituted significant dietary sources of I. |
| Databáze: | OpenAIRE |
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