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  • Title: Serum enzymes of lysosomal origin as indicators of the metabolic control in non-insulin-dependent diabetics.
    Author: Goi G, Lombardo A, Fabi A, Burlina AB, Segalini G, Guagnellini E, Tettamanti G.
    Journal: Acta Diabetol Lat; 1987; 24(4):331-40. PubMed ID: 3125710.
    Abstract:
    Several lysosomal enzymes (beta-N-acetyl-D-glucosaminidase, beta-D-glucuronidase, alpha-D-galactosidase, beta-D-galactosidase, alpha-D-glucosidase, beta-D-glucosidase, alpha-L-fucosidase and alpha-D-mannosidase) were determined in the serum of 54 non-insulin-dependent diabetics with different degrees of metabolic control and without complications and in 18 non-insulin-dependent diabetics with complications. The serum levels of beta-N-acetyl-D-glucosaminidase, beta-D-glucuronidase, alpha-D-galactosidase, and alpha-D-mannosidase were significantly (p less than 0.01) higher in the diabetics without complications. The levels of beta-N-acetyl-D-glucosaminidase and beta-D-glucuronidase were inversely proportional to the degree of metabolic control, in a statistically significant manner. Moreover the levels of these enzymes decreased to normal values during a 2-month period of controlled oral hypoglycemic drug-diet therapy resulting in metabolic compensation. The presence of complications was indicated by a further increase of serum beta-N-acetyl-D-glucosaminidase and beta-D-glucuronidase; however the portion of lysosomal enzyme activities due to complications remained unchanged after controlled therapy aimed at compensating the metabolism. The conclusion is drawn that in non-insulin-dependent diabetics, as already shown for insulin dependent-diabetics, serum lysosomal enzymes, especially beta-N-acetyl-D-glucosaminidase and beta-D-glucuronidase, are good intraindividual indicators of the metabolic control of the disease.
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