title: Association of serum pentosidine with arterial stiffness in hemodialysis patients.
abstract: Pentosidine is an advanced glycation end product (AGE). The present study was undertaken to investigate the association of serum pentosidine with carotid distensibility as a measure of arterial stiffness in hemodialysis patients. One hundred and three patients on maintenance hemodialysis were recruited. The distensibility coefficient of the common carotid artery was evaluated by an ultrasonic phase-locked echo-tracking system. Serum pentosidine was measured by competitive enzyme-linked immunosorbent assay. Serum albumin, lipid profile, calcium, phosphorus, intact parathyroid hormone (iPTH), high-sensitivity C-reactive protein (hs-CRP), and oxidized low-density lipoprotein (ox-LDL) levels were also measured. Correlation was determined by linear and multiple stepwise regression analysis. Serum pentosidine level studied in hemodialysis patients was 0.54 +/- 0.13 microg/mL. No significant difference in serum pentosidine level was noted between patients with and without diabetes (0.59 +/- 0.10 microg/mL vs. 0.53 +/- 0.13 microg/mL, P = 0.062) as well as between patients with and without prior cardiovascular disease (CVD) history (0.56 +/- 0.14 microg/mL vs. 0.53 +/- 0.12 microg/mL, P = 0.206). In multivariate regression analysis, only age (beta = 0.363, P < 0.001) and ox-LDL (beta = 0.262, P = 0.004) were identified as independent determinants for serum pentosidine. Serum pentosidine was significantly correlated with carotid distensibility (r = -0.387, P < 0.001), as well as age, ox-LDL, and hs-CRP. After adjustment for age, blood pressure, history of diabetes, prior CVD history, lipid profile, calcium, phosphorus, iPTH, hs-CRP, and ox-LDL, serum pentosidine was still negatively correlated with distensibility (beta = -0.175, P = 0.044). Serum pentosidine was independently associated with carotid distensibility in hemodialysis patients. This finding suggested that the accumulation of AGE might be an important pathway in the development of arterial stiffness in end-stage renal disease.
authors.affiliation: Department of Nephrology, ChaoYang Hospital, Capital Medical University, Beijing, China.
authors.forename: YiLun
authors.initials: Y
authors.lastname: Zhou
authors.forename: ZeXing
authors.initials: Z
authors.lastname: Yu
authors.forename: HuiMin
authors.initials: H
authors.lastname: Jia
authors.forename: Fang
authors.initials: F
authors.lastname: Sun
authors.forename: LiJie
authors.initials: L
authors.lastname: Ma
authors.forename: RuiJun
authors.initials: R
authors.lastname: Guo
authors.forename: LiRen
authors.initials: L
authors.lastname: Peng
authors.forename: TaiGen
authors.initials: T
authors.lastname: Cui
mesh_terms: D000367:Age Factors; D000368:Aged; D001120:Arginine / Q000031:analogs & derivatives* / Q000097:blood; D015415:Biomarkers / Q000097:blood; D002340:Carotid Artery Diseases / Q000097:blood / Q000000981:diagnostic imaging*; D017536:Carotid Artery, Common / Q000000981:diagnostic imaging*; D016009:Chi-Square Distribution; D004548:Elasticity; D004797:Enzyme-Linked Immunosorbent Assay; D005260:Female; D006801:Humans; D007676:Kidney Failure, Chronic / Q000097:blood / Q000000981:diagnostic imaging / Q000628:therapy*; D016014:Linear Models; D008077:Lipoproteins, LDL / Q000097:blood; D008239:Lysine / Q000031:analogs & derivatives* / Q000097:blood; D008297:Male; D008875:Middle Aged; D006435:Renal Dialysis; D018570:Risk Assessment; D012307:Risk Factors; D014463:Ultrasonography
chemical_list: D015415:Biomarkers; D008077:Lipoproteins, LDL; C099252:oxidized low density lipoprotein; D001120:Arginine; C062187:pentosidine; D008239:Lysine