title: [Detection of nephrotoxicity of human alpha 2b interferon with special reference to the analysis of urine enzymes in patients with chronic myeloid leukemia].
abstract: The nephrotoxic potential of alpha-interferon (IFN alpha-2b) was analysed in 21 patients with chronic myeloid leukemia. As particularly sensitive parameters in the detection of subclinical renal injury we measured the excretion of the following urinary enzymes: lactate dehydrogenase (LDH), gamma-glutamyltransferase (GGT), leucine arylaminidase (LAP), beta-galactosidase (GAL) and N-acetyl-beta-glucosaminidase (NAG). Additionally, protein excretion and urinary sediment were analysed. In 18 of 21 patients a significant increase in the excretion of LDH, LAP, GGT and NAG was found, in 6 patients there was an additional rise in the output of GAL. Eleven patients developed proteinuria up to 2 g/l, one patient excreted up to 9 g/l. Enzymuria and protein excretion decreased in all patients after reduction of the IFN alpha-2b dosage and disappeared in two patients following cessation of therapy. The high incidence of nephrotoxic events in patients with CML during IFN alpha-2b therapy might be mostly due to immunological or substance-specific effects.
mesh_terms: D000293:Adolescent; D000328:Adult; D004798:Enzymes / Q000652:urine*; D005260:Female; D006801:Humans; D007370:Interferon Type I / Q000009:adverse effects* / Q000627:therapeutic use; D007674:Kidney Diseases / Q000139:chemically induced* / Q000201:enzymology; D007677:Kidney Function Tests; D007951:Leukemia, Myeloid / Q000201:enzymology / Q000628:therapy*; D008297:Male; D008875:Middle Aged; D011994:Recombinant Proteins / Q000009:adverse effects* / Q000627:therapeutic use
chemical_list: D004798:Enzymes; D007370:Interferon Type I; D011994:Recombinant Proteins
vernacular_title: Untersuchungen zur Erfassung der Nephrotoxizität von humanem Alpha-2b-Interferon unter besonderer Berücksichtigung der Analyse von Harnenzymen bei Patienten mit chronischer myeloischer Leukämie.