Abstract
As selenium in the form of “Selenoprotein W (SelW)” is essential for the maintenance of normal liver function, the expression of SelW liver depends on the level of selenium supplied with the diet. Whereas this is well known to be the case in mammals, relatively little is known about the effect of dietary Se on the expression SelW in the livers of avian species. To investigate the effects of dietary Se levels on the SelW mRNA expression in the liver of bird, 1-day-old male chickens were fed either a commercial diet or a Se-supplemented diet containing 1.0, 2.0, 3.0, and 5.0 mg/kg sodium selenite (Na2SeO3) for 90 days. The livers were collected and examined for Se content and mRNA levels of SelW, Selenophosphate synthetase-1, and selenocysteine-synthase (SecS). The data indicate that, within a certain range, a Se-supplemented diet can increase the expression of SelW and the mRNA levels of SecS, and also, that the transcription of SelW is very sensitive to dietary Se.
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Acknowledgments
This study was supported by the National Natural Science Foundation of China (30871902) and Science and Technology Research Foundation of Heilongjiang Provincial Education Department (11551030).
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Sun, B., Wang, R., Li, J. et al. Dietary Selenium Affects Selenoprotein W Gene Expression in the Liver of Chicken. Biol Trace Elem Res 143, 1516–1523 (2011). https://doi.org/10.1007/s12011-011-8995-z
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DOI: https://doi.org/10.1007/s12011-011-8995-z