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  • Title: Radioimmunoassay for non-enzymatically glycated serum proteins.
    Author: Kato M, Nakayama H, Makita Z, Aoki S, Kuroda Y, Misawa K, Yoshida H, Yanagisawa K, Nakagawa S.
    Journal: Horm Metab Res; 1989 May; 21(5):245-8. PubMed ID: 2777182.
    Abstract:
    We have developed a radioimmunoassay (RIA) for nonenzymatically glycated serum proteins. The polyclonal antibodies prepared against reduced glycated human albumin were specific for the glucitollysine residues of serum proteins. Serum proteins from diabetic patients (n = 25) contained 5.3 +/- 2.8 nmoles of glucitollysine/mg protein, compared to 2.0 +/- 0.2 in controls (n = 20). The intra- and inter-assay variables were 3.2-6.2% and 4.4-8.6%, respectively. Results from this assay procedure correlated well with those from the boronate affinity chromatography procedure (r = 0.94; P less than 0.001). The data suggested that diabetic serum proteins contained at least 2.5 times as much immunochemically detectable glucitollysine residures as normal serum proteins after reduction of the proteins with sodium borohydride.
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