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  • Ellingsen, D. G. (author)

The variability of arsenic in blood and urine of humans

  • Article/chapterEnglish2023

Publisher, publication year, extent ...

  • 2023

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  • LIBRIS-ID:oai:gup.ub.gu.se/327062
  • https://gup.ub.gu.se/publication/327062URI
  • https://doi.org/10.1016/j.jtemb.2023.127179DOI

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  • Language:English

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  • Subject category:ref swepub-contenttype
  • Subject category:art swepub-publicationtype

Notes

  • Background: Humans are exposed to inorganic and organic arsenic. The total arsenic (As) concentration in urine is a commonly used biomarker of exposure. However, little is known about variability of As in biological fluids and the diurnal variation of As excretion.Objectives: Main objectives were to assess the variability of As in urine, plasma (P-As), whole blood (B-As), and the blood cell fraction (C-As), and to assess diurnal variation of As excretion. Methods: Six urine samples were collected at fixed times during 24 h on two different days around one week apart among 29 men and 31 women. Blood samples were collected when the morning urine samples were delivered. The intra-class correlation coefficient (ICC) was calculated as the ratio of the between-individuals variance to the total observed variance.Results: Geometric mean (GM) 24 h urinary excretions of As (U-As24 h) were 41 and 39 mu g/24 h on the two days of sampling. Concentrations of B-As, P-As and C-As were highly correlated with U-As24 h and As in first void morning urine. No statistically significant differences were observed for the urinary As excretion rate between the different sampling times. A high ICC was observed for As in the cellular blood fraction (0.803), while ICC for first morning urine corrected for creatine was low (0.316).Conclusions: The study suggests that C-As is the most reliable biomarker for use in exposure assessment of individual exposure. Morning urine samples have low reliability for such use. No apparent diurnal variation was observed in the urinary As excretion rate.

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  • Weinbruch, S. (author)
  • Sällsten, Gerd,1952Gothenburg University,Göteborgs universitet,Institutionen för medicin, avdelningen för samhällsmedicin och folkhälsa,Institute of Medicine, School of Public Health and Community Medicine(Swepub:gu)xsalge (author)
  • Berlinger, B. (author)
  • Barregård, Lars,1948Gothenburg University,Göteborgs universitet,Institutionen för medicin, avdelningen för samhällsmedicin och folkhälsa,Institute of Medicine, School of Public Health and Community Medicine(Swepub:gu)xbarrl (author)
  • Göteborgs universitetInstitutionen för medicin, avdelningen för samhällsmedicin och folkhälsa (creator_code:org_t)

Related titles

  • In:Journal of Trace Elements in Medicine and Biology780946-672X

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Ellingsen, D. G.
Weinbruch, S.
Sällsten, Gerd, ...
Berlinger, B.
Barregård, Lars, ...
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MEDICAL AND HEALTH SCIENCES
MEDICAL AND HEAL ...
and Health Sciences
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Journal of Trace ...
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University of Gothenburg

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