Distribution of vitamins A (retinol) and E (alpha-tocopherol) in polar bear kidney: Implications for biomarker studies

Publication: Research - peer-reviewJournal article – Annual report year: 2011

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Vitamins A and E content of inner organs, among these the kidneys, are increasingly being used as an indicator of adverse effects caused to the organism by e.g. environmental contaminants. In general, only a renal sub sample is used for analyses, and it is thus essential to know which part of the organ to sample in order to get a representative value for this important biomarker. The aim here was to assess the distribution of vitamins A (retinol) and E (α-tocopherol) within the polar bear multireniculate kidney (i.e. polar vs. medial position) and also within the cortex vs. medulla of each separate renculi. The results showed no significant difference between the medial and polar renculi with regards to either retinol (p=0.44) or α-tocopherol (p=0.75). There were, however, significant differences between cortex and medulla for both vitamins (retinol, p=0.0003; α-tocopherol, p
Original languageEnglish
JournalScience of the Total Environment
Publication date2011
Volume409
Journal number18
Pages3508-3511
ISSN0048-9697
DOIs
StatePublished
CitationsWeb of Science® Times Cited: 0

Keywords

  • Retinol, Vitamin, Renculi, Kidney, Ursus maritimus, Tocopherol
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