Abstract
Oligosaccharides were extracted from tissues and body fluids of five kittens with α-mannosidosis, three being from the same litter. The kittens were all of different ages at death and were compared to normal and heterozygote cats. The oligosaccharides were analyzed by high-pressure liquid chromatography after perbenzoylation and were identified by comparison with compounds of known structure. This provided a detailed picture of the distribution of oligosaccharides in each tissue, and a method for quantitation of the total oligosaccharides. With the exception of the youngest animal (death at day 2), the oligosaccharide elution profiles were broadly similar for all tissues and fluids, and were typical of feline α-mannosidosis. In contrast, concentrations of total oligosaccharides diverged widely from one source to another, from a high of 17.3 μmol/g to a low of 0.04 μmol/g. The results are interpreted in the context of glycoprotein catabolism.
Published Version
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