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用无损伤~(23)Na NMR检测技术测定了正常和低硒饲料喂养的大白鼠的红细胞内钠离子浓度.结果表明:(1)缺硒可引起胞内钠离子浓度升高,(2)高钠细胞比正常细胞易溶血,(3)在饲料中补充Na_2ScO_3后可使胞内钠离子浓度恢复至正常水平,溶血情况也有所改善。
The sodium ion concentration in erythrocytes of normal and low selenium-fed rats was determined by non-invasive ~(23)Na NMR technique. The results showed that: (1) Selenium deficiency can increase intracellular sodium ion concentration, (2) High-sodium cells are more prone to hemolysis than normal cells. (3) Na_2ScO_3 supplementation can restore intracellular sodium ion concentration to normal levels, and hemolysis is also improved.