1. Subcutaneous inflammatory granuloma were induced in young rats and the urinary excretion of hydroxyproline and hydroxylysyl glycosides was observed during the period of acute inflammation.

2. All collagen metabolites were increased in the urine and excretion of glucosyl-galactosyl-hydroxylysine was much greater than excretion of galactosyl-hydroxylysine in the first days.

3. It is argued that urinary glucosyl-galactosyl-hydroxylysine is probably derived from hydroxylysyl residues of soluble collagen.

4. This study affords new arguments in favour of the dermal origin of urinary glucosyl-galactosyl-hydroxylysine, at least in skin inflammation.

Keywords:
collagen metabolism, hydroxylysine, inflammation
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© 1976 The Biochemical Society and the Medical Research Society
1976
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