Selenium health benefit values provide a reliable index of seafood benefits vs. risks

Ralston, Nicholas V.C.; Kaneko, J. John; Raymond, Laura J.

doi:10.1016/j.jtemb.2019.05.009

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Selenium health benefit values provide a reliable index of seafood benefits vs. risks

2019
By Ralston, Nicholas V.C. ; Kaneko, J. John ; Raymond, Laura J.
Source: Journal of Trace Elements in Medicine and Biology, 55, 50-57

[PDF-970.37 KB]

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Journal Title:

Journal of Trace Elements in Medicine and Biology
Personal Author:

Ralston, Nicholas V.C. ; Kaneko, J. John ; Raymond, Laura J.

Ralston, Nicholas V.C. ; Kaneko, J. John ; Raymond, Laura J. Less -
NOAA Program & Office:

NMFS (National Marine Fisheries Service)
Description:

Methylmercury (CH3Hg) toxicity causes irreversible inhibition of selenium (Se)-dependent enzymes, including those that are required to prevent and reverse oxidative damage in the brain. Fish consumption provides numerous essential nutrients required for optimal health, but is also associated with CH3Hg exposure risks, especially during fetal development. Therefore, it is necessary to assess the amounts of both elements in seafood to evaluate relative risks or benefits. Consumption of ocean fish containing Se in molar excess of CH3Hg will prevent interruption of selenoenzyme activities, thereby alleviating Hg-exposure risks. Because dietary Se is a pivotal determinant of CH3Hg’s effects, the Selenium Health Benefit Value (HBV) criterion was developed to predict risks or benefits as a result of seafood consumption. A negative HBV indicates Hg is present in molar excess of Se and may impair Se availability while a positive HBV indicates consumption will improve the Se status of the consumer, thus negating risks of Hg toxicity.
Keywords:

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Biochemistry Inorganic Chemistry Molecular Medicine
Source:

Journal of Trace Elements in Medicine and Biology, 55, 50-57
DOI:

https://doi.org/10.1016/j.jtemb.2019.05.009
ISSN:

0946-672X
Format:

PDF
Publisher:

Elsevier BV
Document Type:

Journal Article
Funding:

Grant no. NA08NMF4520492 ; Grant no. NA09NMF4520172

Grant no. NA08NMF4520492 ; Grant no. NA09NMF4520172 Less -
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Accepted Manuscript
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urn:sha256:90888d93855897386e75816e521593e318b2e09f8f41b77f01d08114905df55c
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https://repository.library.noaa.gov/view/noaa/57746/noaa_57746_DS1.pdf
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Selenium health benefit values provide a reliable index of seafood benefits vs. risks

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