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. 2018 Jan 19;8:1256. doi: 10.1038/s41598-018-19677-4

Figure 2.

Figure 2

Identification and characterization of low-density CPP (L-CPP). (a) Gel filtration chromatograms of archive serum samples from three dialysis patients, which were centrifuged at 16,000 g for 2 hours (open markers with dot lines) or left untreated (closed markers with solid lines) before OsteoSense inoculation. (b) Comparison between the fetuin-A method and the gel filtration method. The CPP levels determined by the fetuin-A method were correlated with the H-CPP levels (b), but not with the L-CPP levels (c), determined by the gel filtration method. RR (%), the reduction rate (%) of serum fetuin-A levels. (d) The particle size distribution of CPP in one of the archive serum samples from dialysis patients determined by nanoparticle tracking analysis (NTA) using FITC-alendronate as a probe. (e) as in (d), except that EDTA was added to the serum sample before NTA. (f) as in (d), except that the serum sample was centrifuged at 16,000 g for 2 hours before NTA.