Abstract
Glycosylated hemoglobins (GHb) or fast hemoglobins (FH) are minor components of hemoglobin that so far have been quantified in men, monkeys, and mice, and they are elevated in diabetic subjects of all these species. Since the rat is a useful model for experimental diabetic studies, hemolysates from streptozotocin-induced diabetic rats were analyzed for FH fractions using a high pressure liquid chromatography method. In a long-term study (3 mo), the maximal increment of the FH fractions was achieved after 5 wk of diabetes (from 5.67% ± 0.41% SD to 10.80% ± 0.74%) supporting the notion that the biosynthesis of these compounds occurs continuously during the lifespan of the red cell. In a short-term study. however, an elevation of the FH by 11% after 2 days and by 26% after 6 days of diabetes was noticed suggesting that a rapid increase of the FH may occur in relation to rapid changes of the glucose level.
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