title: Serum pyridinolines as specific markers of bone resorption in hemodialyzed patients.
abstract: Serum levels of hydroxylysyl pyridinoline and lysyl pyridinoline were quantified in uremic patients undergoing maintenance hemodialysis and in healthy subjects. Pre-hemodialysis serum levels of hydroxylysyl pyridinoline and lysyl pyridinoline in the hemodialyzed patients were significantly higher than those in healthy subjects. Serum levels of hydroxylysyl pyridinoline and lysyl pyridinoline decreased significantly after hemodialysis with reduction rates of about 40%. Pre-hemodialysis serum levels of hydroxylysyl pyridinoline and lysyl pyridinoline correlated significantly with intact parathyroid hormone, osteocalcin and bone-specific alkaline phosphatase. Lysyl pyridinoline showed better correlations with these parameters than hydroxylysyl pyridinoline. Parathyroidectomy markedly decreased serum levels of hydroxylysyl pyridinoline and lysyl pyridinoline. These results indicate that serum pyridinolines, especially lysyl pyridinoline, may be used as specific biochemical markers of bone resorption in hemodialyzed patients.
authors.affiliation: Nagoya University Branch Hospital, Japan.
authors.forename: T
authors.initials: T
authors.lastname: Niwa
authors.forename: K
authors.initials: K
authors.lastname: Shiobara
authors.forename: T
authors.initials: T
authors.lastname: Hamada
authors.forename: T
authors.initials: T
authors.lastname: Miyazaki
authors.forename: S
authors.initials: S
authors.lastname: Tsukushi
authors.forename: K
authors.initials: K
authors.lastname: Uema
authors.forename: T
authors.initials: T
authors.lastname: Tsuzuki
mesh_terms: D000135:Acid Phosphatase / Q000097:blood; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D000469:Alkaline Phosphatase / Q000097:blood; D000596:Amino Acids / Q000097:blood*; D015415:Biomarkers / Q000097:blood; D001862:Bone Resorption / Q000097:blood*; D002851:Chromatography, High Pressure Liquid; D005260:Female; D006801:Humans; D007527:Isoenzymes / Q000097:blood; D008297:Male; D008875:Middle Aged; D015675:Osteocalcin / Q000097:blood; D010281:Parathyroid Hormone / Q000097:blood; D016105:Parathyroidectomy; D006435:Renal Dialysis; D000071681:Tartrate-Resistant Acid Phosphatase; D014511:Uremia / Q000097:blood
chemical_list: D000596:Amino Acids; D015415:Biomarkers; D007527:Isoenzymes; D010281:Parathyroid Hormone; D015675:Osteocalcin; C015484:pyridinoline; C036020:deoxypyridinoline; D000469:Alkaline Phosphatase; D000135:Acid Phosphatase; D000071681:Tartrate-Resistant Acid Phosphatase