The effects of dietary l-ascorbic acid on the absorption and utilization of Na75SeO3 of silver-treated rats

Rahim, A.G. Abdel

doi:10.1016/0742-8413(85)90103-3

Cited by 3 publications

(1 citation statement)

References 4 publications

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“…Vitamin A ) and ascorbic acid (Combs and Pesti 1976, Combs and Scott 1974) in chicks and ascorbic acid in rats (Rahim 1985) increase selenium absorption, suggesting that factors which inhibit the oxidation of dietary selenium promote its absorption. In contrast to this Mykkänen and Mutanen (1983) reported that moderate doses of ascorbic acid can inhibit the intestinal absorption of selenite in chicks when administered together intraduodenally.…”

Section: Conrad 1984 B)mentioning

confidence: 99%

Metabolism of selenite, selenomethionine and feed-incorporated selenium in lactating goats and dairy cows

Aspila

1991

AFSci

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The objective of this study was to investigate the metabolism of inorganic and organic Se sources at different dietary Se levels in lactating goats and dairy cows. The study consists of two experiments on goats dosed singly, either orally with grass sprayed with Na275SeO3 one week before cutting, intraruminally (I.R.) with Na275SeO3, or intravenously (I.V.) with Na275SeO3 or 75Se-selenomethionine. Follow-up periods were from 15 to 28 d long. Dietary Se levels were 0.05, 0.22 and 0.34 mg/kg DM. Values for 75Se absorption, excretion in milk, urine and faeces, 75Se activity in plasma, erythrocytes and hair are presented. In another experiment lasting 539 d, 48 dairy cows were fed either Na275SeO3 or grass silage sprayed with Na275SeO3 one week before cutting. Dietary Se levels were from 0.03 to 1.8 mg/kg DM. Se content in milk, plasma and erythrocytes, and GSH-Px activity in erythrocytes and plasma are given. True absorption of 75Se was 63 % and 65 %, and excretion of 75Se in milk 4 % and 7 % in the goats dosed I.R. with Na275SeO3 and orally with 75Se-labeled grass. The effect of dietary Se content was non-significant. After I.V. dose, 3.6 % and 33 % of 75Se was excreted in milk in goats dosed with Na275SeO3 and 75Se-selenomethionine, respectively, Na275SeO3 being eliminated mainly via urine. In cows receiving selenium as Na275SeO3, milk contained 0.011, 0.011, 0.016 and 0.020 mg Se/l at dietary Se levels 0.11, 0.17, 0.42 and 0.68 mg/kg DM, respectively. In cows receiving Se-sprayed silage, milk Se content was 0.023, 0.020, 0.029 and 0.040 mg/l when the diet contained 0.09, 0.20, 0.45 and 1.20 mg Se/kg DM. Se incorporated into silage was more efficient (p

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Section: Conrad 1984 B)mentioning

confidence: 99%

Metabolism of selenite, selenomethionine and feed-incorporated selenium in lactating goats and dairy cows

Aspila

1991

AFSci

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Effects of selenium on toxicity and ultrastructural localization of silver in cultured macrophages

Rungby

Ellermann-Eriksen

Danscher³

1987

Arch Toxicol

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The effects of selenium on cellular toxicity and histochemical distribution of silver were examined in a cell culture system of mouse peritoneal macrophages. Selenium caused a significant delay in the appearance of coagulation necrosis induced by high silver concentrations and reduced the cytostatic effect of lower doses of silver when long-term toxicity was examined. Furthermore, selenium increased the amount of silver that could be visualized by autometallography. The additional silver made available for this histochemical demonstration was located in the cytosol as well as in lysosomes, the sole localization of silver when selenium was not administered.

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Effects of selenium supplementation on glucose homeostasis, inflammation, and oxidative stress in gestational diabetes: Randomized, double-blind, placebo-controlled trial

et al. 2015

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The effects of dietary l-ascorbic acid on the absorption and utilization of Na75SeO3 of silver-treated rats

Cited by 3 publications

References 4 publications

Metabolism of selenite, selenomethionine and feed-incorporated selenium in lactating goats and dairy cows

Metabolism of selenite, selenomethionine and feed-incorporated selenium in lactating goats and dairy cows

Effects of selenium on toxicity and ultrastructural localization of silver in cultured macrophages

Effects of selenium supplementation on glucose homeostasis, inflammation, and oxidative stress in gestational diabetes: Randomized, double-blind, placebo-controlled trial

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