N-acetyl-B-D-glucosaminidase isoenzymes in the diagnosis of poisoning and kidney diseases.
Damaged lysosomes from renal tubular cells are, to the greatest degree, the source of activity of NAG in urine. Besides this, the enzyme can appear as a result of degranulation of granulocytes (PMN), active infection of the urinary system as also from serum as a result of glomerular filtration during damage to the glomerular basement membrane. For the purpose of explaining the source of origin of the enzyme in urine, NAG was separated into isoenzymes from the kidneys, granulocytes and serum for comparison with isoenzymes in physiological and pathological urines after ethylene glycol poisoning, and glomerulonephritis, respectively. The separation was made by column ion-exchange chromatography on DEAE-52 cellulose and by electrophoresis in 7% polyacrylamide gel. In addition, the thermostability of isolated isoenzymes was compared.
Marchewka
Z
Z
Department of Toxicology, Medical Academy, Wrocław, Poland.
Kuźniar
J
J
Lembas-Bogaczyk
J
J
Jacyszin
K
K
D000118:Acetylglucosaminidase / Q000097:blood / Q000652:urine*; D005026:Ethylene Glycols / Q000506:poisoning; D005921:Glomerulonephritis / Q000201:enzymology; D006801:Humans; D007527:Isoenzymes / Q000097:blood / Q000652:urine*; D007674:Kidney Diseases / Q000201:enzymology*; D011041:Poisoning / Q000201:enzymology*
D005026:Ethylene Glycols; D007527:Isoenzymes; D000118:Acetylglucosaminidase