title: Unchanged serum levels of advanced glycation endproducts in patients with liver disease.
abstract: Advanced glycation end products (AGEs), e.g., carboxymethyllysine (CML) or imidazolone are involved in several age-related disorders. Concerning their accumulation, the importance of hepatic and renal function is controversially discussed. To test whether impairment of hepatic or renal function will affect their accumulation, both AGEs have been measured in various populations, such as 52 patients with liver disease [viral hepatitis C without (n = 19) and with (n = 10) fatty liver; nonalcoholic fatty liver (n = 13), nonalcoholic steatohepatitis (n = 10)]. Serum concentrations of both AGEs have been compared to those in 20 healthy controls and 24 patients with moderate renal impairment (creatinine clearance 23-55 ml/min). Concerning CML (95% C.I. 803-1200 ng/ml), no differences between the various groups could be observed. Likewise, serum levels of imidazolone (95% C.I. 1.3-5.6 units) were similar in all populations. In conclusion, moderate impairment in hepatic or in renal function did not affect serum levels of CML and imidazolone. Apparently, any increase observed in severe cirrhosis or renal failure seems to be rather a consequence than a cause of both disorders.
authors.affiliation: Dr. Margarete Fischer-Bosch Institute of Clinical Pharmacology, Auerbachstrasse 112, 70376 Stuttgart, Germany.
authors.forename: Moritz
authors.initials: M
authors.lastname: Butscheid
authors.forename: Christian
authors.initials: C
authors.lastname: Schäfer
authors.forename: Stefanie
authors.initials: S
authors.lastname: Brenner
authors.forename: Dominik
authors.initials: D
authors.lastname: Alscher
authors.forename: Thomas
authors.initials: T
authors.lastname: Mürdter
authors.forename: Toshimitsu
authors.initials: T
authors.lastname: Niwa
authors.forename: Matthias
authors.initials: M
authors.lastname: Frischmann
authors.forename: Monika
authors.initials: M
authors.lastname: Pischetsrieder
authors.forename: Ulrich
authors.initials: U
authors.lastname: Klotz
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D005234:Fatty Liver / Q000097:blood* / Q000209:etiology; D005260:Female; D017127:Glycation End Products, Advanced / Q000097:blood*; D006526:Hepatitis C / Q000097:blood* / Q000150:complications; D006801:Humans; D007093:Imidazoles / Q000097:blood*; D008239:Lysine / Q000031:analogs & derivatives* / Q000097:blood; D008297:Male; D008875:Middle Aged; D051437:Renal Insufficiency / Q000097:blood
chemical_list: D017127:Glycation End Products, Advanced; D007093:Imidazoles; C117197:imidazolone; C048496:N(6)-carboxymethyllysine; D008239:Lysine