PMID- 29788425 OWN - NLM STAT- MEDLINE DCOM- 20200414 LR - 20200414 IS - 1460-2385 (Electronic) IS - 0931-0509 (Print) IS - 0931-0509 (Linking) VI - 34 IP - 6 DP - 2019 Jun 1 TI - Patients with advanced chronic kidney disease and vascular calcification have a large hydrodynamic radius of secondary calciprotein particles. PG - 992-1000 LID - 10.1093/ndt/gfy117 [doi] AB - BACKGROUND: The size of secondary calciprotein particles (CPP2) and the speed of transformation (T50) from primary calciprotein particles (CPP1) to CPP2 in serum may be associated with vascular calcification (VC) in patients with chronic kidney disease (CKD). METHODS: We developed a high throughput, microplate-based assay using dynamic light scattering (DLS) to measure the transformation of CPP1 to CPP2, hydrodynamic radius (Rh) of CPP1 and CPP2, T50 and aggregation of CPP2. We used this DLS assay to test the hypothesis that a large Rh of CPP2 and/or a fast T50 are associated with VC in 45 participants with CKD Stages 4-5 (22 without VC and 23 with VC) and 17 healthy volunteers (HV). VC was defined as a Kauppila score >6 or an Adragao score >/=3. RESULTS: CKD participants with VC had larger cumulants Rh of CPP2 370 nm [interquartile range (IQR) 272-566] compared with CKD participants without VC [212 nm (IQR 169-315)] and compared with HV [168 nm (IQR 145-352), P < 0.01 for each]. More CPP2 were in aggregates in CKD participants with VC than those without VC (70% versus 36%). The odds of having VC increased by 9% with every 10 nm increase in the Rh of CPP2, after adjusting for age, diabetes, serum calcium and phosphate [odds ratio 1.09, 95% confidence interval (CI) 1.03, 1.16, P = 0.005]. The area under the receiver operating characteristic curve for VC of CPP2 size was 0.75 (95% CI 0.60, 0.90). T50 was similar in CKD participants with and without VC, although both groups had a lower T50 than HV. CONCLUSIONS: Rh of CPP2, but not T50, is independently associated with VC in patients with CKD Stages 4-5. CI - (c) The Author(s) 2018. Published by Oxford University Press on behalf of ERA-EDTA. All rights reserved. FAU - Chen, Wei AU - Chen W AD - Department of Medicine, University of Rochester School of Medicine and Dentistry, Rochester, NY, USA. FAU - Anokhina, Viktoriya AU - Anokhina V AD - Department of Biochemistry and Biophysics, University of Rochester School of Medicine and Dentistry, Rochester, NY, USA. FAU - Dieudonne, Gregory AU - Dieudonne G AD - Department of Radiology, University of Rochester School of Medicine and Dentistry, Rochester, NY, USA. FAU - Abramowitz, Matthew K AU - Abramowitz MK AD - Department of Medicine, Albert Einstein College of Medicine, Bronx, NY, USA. FAU - Kashyap, Randeep AU - Kashyap R AD - Department of Surgery, University of Rochester School of Medicine and Dentistry, Rochester, NY, USA. FAU - Yan, Chen AU - Yan C AD - Department of Medicine, University of Rochester School of Medicine and Dentistry, Rochester, NY, USA. FAU - Wu, Tong Tong AU - Wu TT AD - Department of Biostatistics and Computational Biology, University of Rochester School of Medicine and Dentistry, Rochester, NY, USA. FAU - de Mesy Bentley, Karen L AU - de Mesy Bentley KL AD - Department of Pathology and Laboratory Medicine, University of Rochester School of Medicine and Dentistry, Rochester, NY, USA. FAU - Miller, Benjamin L AU - Miller BL AD - Department of Biochemistry and Biophysics, University of Rochester School of Medicine and Dentistry, Rochester, NY, USA. AD - Department of Dermatology, University of Rochester School of Medicine and Dentistry, Rochester, NY, USA. AD - Department of Biomedical Engineering, University of Rochester School of Medicine and Dentistry, Rochester, NY, USA. FAU - Bushinsky, David A AU - Bushinsky DA AD - Department of Medicine, University of Rochester School of Medicine and Dentistry, Rochester, NY, USA. LA - eng GR - KL2 TR001999/TR/NCATS NIH HHS/United States GR - R01 DK075462/DK/NIDDK NIH HHS/United States GR - S10 RR026501/RR/NCRR NIH HHS/United States GR - S10 RR027241/RR/NCRR NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Research Support, Non-U.S. Gov't PL - England TA - Nephrol Dial Transplant JT - Nephrology, dialysis, transplantation : official publication of the European Dialysis and Transplant Association - European Renal Association JID - 8706402 RN - 0 (Phosphates) RN - SY7Q814VUP (Calcium) SB - IM MH - Adult MH - Calcium/*blood MH - Cross-Sectional Studies MH - Diabetes Mellitus MH - Female MH - Glomerular Filtration Rate MH - Humans MH - Hydrodynamics MH - Light MH - Male MH - Middle Aged MH - Odds Ratio MH - Phosphates/*blood MH - Photometry/*methods MH - Regression Analysis MH - Renal Insufficiency, Chronic/*blood/complications MH - Scattering, Radiation MH - Vascular Calcification/*blood/complications MH - Young Adult PMC - PMC6545469 OTO - NOTNLM OT - calcification propensity OT - calciprotein particle OT - chronic kidney disease OT - mineral metabolism OT - vascular calcification EDAT- 2018/05/23 06:00 MHDA- 2020/04/15 06:00 PMCR- 2019/05/16 CRDT- 2018/05/23 06:00 PHST- 2018/02/16 00:00 [received] PHST- 2018/05/23 06:00 [pubmed] PHST- 2020/04/15 06:00 [medline] PHST- 2018/05/23 06:00 [entrez] PHST- 2019/05/16 00:00 [pmc-release] AID - 4996711 [pii] AID - gfy117 [pii] AID - 10.1093/ndt/gfy117 [doi] PST - ppublish SO - Nephrol Dial Transplant. 2019 Jun 1;34(6):992-1000. doi: 10.1093/ndt/gfy117.