IMPROVED FLOW-INJECTION ANALYSIS (FIA) METHOD FOR DETERMINING SELENIUM IN BIOLOGICAL SAMPLES, AND THE EFFECT OF CAPTOPRIL ADMINISTRATION ONSELENIUM LEVELS AND GLUTATHIONE-PEROXIDASE ACTIVITY IN RAT
N. Suzuki et al., IMPROVED FLOW-INJECTION ANALYSIS (FIA) METHOD FOR DETERMINING SELENIUM IN BIOLOGICAL SAMPLES, AND THE EFFECT OF CAPTOPRIL ADMINISTRATION ONSELENIUM LEVELS AND GLUTATHIONE-PEROXIDASE ACTIVITY IN RAT, Biological & pharmaceutical bulletin, 16(11), 1993, pp. 1069-1072
An improved flow injection analysis (FIA) method has been developed fo
r the determination of trace selenium in biological samples, and this
method has been applied to investigate the effect of captopril, an ant
ihypertensive drug having a thiol group, on selenium concentrations in
the rat blood, liver and urine. After oral administration of captopri
l, selenium levels in the blood decreased, while those in the liver in
creased significantly. However, no pronounced effect was observed on t
he urinary excretion rate. The glutathione peroxidase activities in th
e blood and the liver were comparable to the changes in the selenium l
evels.