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  • Title: Selenium supplementation: plasma glutathione peroxidase an indicator of selenium intake.
    Author: Lombeck I, Menzel H, Steiner G, Kasperek K.
    Journal: Klin Padiatr; 1982; 194(5):303-5. PubMed ID: 7144044.
    Abstract:
    Plasma glutathione peroxidase activity is markedly reduced in dietetically treated patients with PKU or MSUD in comparison to health children of the same age. This is due to the low selenium content of their diet. During supplementation with yeast rich in selenium (200 micrograms selenium per day) for 3 months 2 healthy adults did not show any significant change of their plasma GSHPx activity. 5 dietetically treated patients with PKU or MSUD and a reduced selenium state showed a rapid increase of the plasma GSHPx activity after selenium supplementation were started with 120 micrograms Se/m2 x d. The values doubled within the first two days and reached a plateau after 1--3 weeks. The patients showed no clinical anomalities before or during the selenium supplementation besides the inherited defect of amino acid metabolism. Plasma GSHPx activity seems to be a good indicator of short-term changes of selenium intake in patients with reduced selenium state.
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