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Effects of Selenium Administration on Erythrocyte and Blood Plasma Glutathione Peroxidase Activity in Goats

Effekler av selentilljiirsel ps aktioiteten av glulalhionperoxidas i blodplasma ocli röda blodkroppar hos gel

Abstract

The activity of glutathione peroxidase (GSH-Px, E.G. 1.11.1.9.) was determined in heparinized whole blood, blood plasma and washed erythrocytes from goats before and up to 4 weeks after the administration of selenium (0.4 mg/10 kg BW) and vitamin E (20 mg/10 kg BW) or only vit. E (20 mg/10 kg BW). It was found that Se administration caused a significant increase in enzyme activity in whole blood and washed erythrocytes first detected 2 weeks after the intramuscular injection of Se. No changes were observed in plasma from the treated animals. Minor and insignificant changes were seen in the vit. E treated control animals. It is concluded that GSH-Px activity in blood plasma or serum is of no value as a short-term indicator of the selenium status of goats but whole blood is a good indicator of the long-term status.

Sammanfattning

Aktiviteten aν enzymet glutationperoxidas (GSH-Px, E.C. 1.11.1.9.) bestämdes i hepariniserat helblod, plasma och tvättade blodkroppar från getter före och efter intramuskulär tillförsel av seien (0.4 mg/ 10 kg kroppsvikt) och vitamin Ε (20 mg/10 kg kroppsvikt) eller en-bart vit. Ε (20 mg/10 kg kroppsvikt). Tillförsel av Se gav en signifikant ökning av enzymaktiviteten i helblod och tvättade blodkroppar mätbar från 2 veckor efter tillförseln av Se. Plasmaproven uppvisade inga förändringar. Proven från de getter som enbart fått vit. Ε visade mindre och icke signifikanta ändringar av GSH-Px aktiviteten. Slut-satsen av experimentet blir att enzymaktiviteten i blodplasma eller serum inte kan användas som en indikator på getens kortsiktiga selen-status men att bestämning av GSH-Px i helblod eller röda blodkroppar är en god indikator på djurets långsiktiga selenstatus.

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M. Hussein, K.S., Jones, BE.V. Effects of Selenium Administration on Erythrocyte and Blood Plasma Glutathione Peroxidase Activity in Goats. Acta Vet Scand 23, 559–564 (1982). https://doi.org/10.1186/BF03546774

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