Scholz R W, Hutchinson L J
Am J Vet Res. 1979 Feb;40(2):245-9.
The distribution of glutathione peroxidase (GSH-Px) activity and selenium concentrations among several components in the blood of dairy cows was examined. Approximately 98% of the GSH-Px activity in peripheral blood was associated with the erythrocytes when enzyme activity was expressed as units per milliliter of blood. The GSH-Px activity expressed per cell was approximately fourfold greater for peripheral leukocytes than for erythrocytes. The cellular component contained a greater proportion (approx 73%) of whole blood selenium than did the plasma. A positive linear relationship (r = 0.958) between blood GSH-Px activity and blood selenium concentrations was found in dairy cattle under practical field conditions.
研究了奶牛血液中几种成分之间谷胱甘肽过氧化物酶（GSH-Px）活性和硒浓度的分布情况。当酶活性以每毫升血液的单位表示时，外周血中约98%的GSH-Px活性与红细胞相关。以每个细胞表示的GSH-Px活性，外周白细胞比红细胞大约高四倍。细胞成分所含的全血硒比例（约73%）高于血浆。在实际田间条件下的奶牛中，发现血液GSH-Px活性与血液硒浓度之间存在正线性关系（r = 0.958）。
