title: Urinary excretion of three specific renal tubular enzymes in patients treated with nonsteroidal anti-inflammatory drugs (NSAID).
abstract: Ten patients, mean age 51.50 +/- 3.03 years, with degenerative rheumatism on NSAID treatment without any sign of renal disease, and 11 control subjects, mean age 43.50 +/- 1.51 years, were studied. NSAID treatment was of 11.30 +/- 5.60 weeks duration in average, with ibuprofen, naproxen, or indomethacin. Urinary excretion of three specific renal tubular enzymes--AAP: alanine-amino-peptidase, GGT: gamma-glutamyl-transpeptidase, and beta-NAG: beta-N-acetyl-glucosaminidase, were determined in 8-h overnight urine samples, as well as GFR creatinine clearance/1.73 m2, urinary volume/8 h, specific gravity of the urine, proteinuria and glucosuria. In the group treated with NSAIDs, urinary excretion of the enzymes was significantly higher than in the control group--AAP: 1414.20 +/- 317.60, 864.20 +/- 94.42, p < 0.00001; GGT: 8034.6 +/- 1378.55, 5095.64 +/- 614.40, p < 0.00001, and beta-NAG: 1644.60 +/- 299.97, 964.82 +/- 142.00, p < 0.00001. Patients on NSAID treatment showed abnormal urinary excretion of AAP in 7/10 cases, of GGT in 6/10, and of beta-NAG in 7/10 cases. Duration of the treatment did not correlate with the urinary excretion of the enzymes. Age was in correlation with the urinary excretion of the enzymes only in the control group, r = 0.52, p < 0.005 for AAP, r = -0.43, p < 0.02 for GGT, and r = -0.23, p < 0.05 for beta-NAG.(ABSTRACT TRUNCATED AT 250 WORDS)
authors.affiliation: Department of Nephrology, Medical Faculty, University Cyril and Methodius, Skopje, Macedonia.
authors.forename: K G
authors.initials: KG
authors.lastname: Zafirovska
authors.forename: S V
authors.initials: SV
authors.lastname: Bogdanovska
authors.forename: N
authors.initials: N
authors.lastname: Marina
authors.forename: T
authors.initials: T
authors.lastname: Gruev
authors.forename: L
authors.initials: L
authors.lastname: Lozance
mesh_terms: D000118:Acetylglucosaminidase / Q000652:urine*; D000626:Aminopeptidases / Q000652:urine*; D000894:Anti-Inflammatory Agents, Non-Steroidal / Q000009:adverse effects / Q000627:therapeutic use*; D018826:CD13 Antigens; D005919:Glomerular Filtration Rate; D006801:Humans; D007674:Kidney Diseases / Q000139:chemically induced / Q000175:diagnosis / Q000652:urine; D008875:Middle Aged; D010003:Osteoarthritis / Q000188:drug therapy; D013997:Time Factors; D005723:gamma-Glutamyltransferase / Q000652:urine*
chemical_list: D000894:Anti-Inflammatory Agents, Non-Steroidal; D005723:gamma-Glutamyltransferase; D000118:Acetylglucosaminidase; D000626:Aminopeptidases; D018826:CD13 Antigens