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  • Title: Urinary excretion of glycosaminoglycans in malignant diseases of the haemopoietic and lymphatic tissues.
    Author: Friman C, Juvani M.
    Journal: Acta Med Scand; 1975; 198(1-2):115-22. PubMed ID: 126635.
    Abstract:
    A study has been made of the urinary excretion of glycosaminoglycans (GAG) in 50 patients with malignancies, including 6 patients with acute myeloid leukaemia (AML), 11 with chronic myeloid leukaemia (CML), 10 with chronic lymphatic leukaemia (CLL), 10 with multiple myeloma (MM), 7 with Hodgkin's disease and 6 with mycosis fungoides (MF). The total urinary GAG were isolated by precipitation with cetyltrimethyl-ammoniumbromide (CTAB), and assayed in terms of their hexuronic acid content. A statistically highly significant increase in the excretion of total GAG was observed in all the disorders studied, except Hodgkin's disease, the highest value being seen in myeloid leukaemia (ML). Constant amounts of non-dialysable urinary GAG were electrophoresed in 0.5 M lithium acetate on cellulose acetate strips, and stained with alcian blue. The densitometric tracing derived from the electrophoresis strips were analysed with a Du Pont Curve Resolver. The electrophoretic data suggested the existence of a qualitative deviation in GAG excretion in CLL and in MF, in that patients with these diseases excreted on an average larger than normal amounts of slowly migrating GAG fractions. Pooled crude urinary GAG material from patients with CLL, MF, AML and CML and from control subjects was further purified and subjected to analytical studies. These indicated that a similar qualitative urinary GAG distribution exists in ML and in controls, whereas the urinary GAG in CLL and MF patients contained relatively more dermatan sulphate (DS, in terms of iduronate) than those of the controls.
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