Abstract
The presence of macromolecular substances is among the multiple factors that may influence the complex process of urinary stone formation. The aim of this study was to evaluate the inhibitory potency of crystal matrix protein (CMP). Purification of CMP consisted of calcium oxalate crystal formation, dissolution of crystals, electrodialysis and high-performance liquid chromatography (HPLC). The inhibitory potency of crystal aggregation was examined by the seed crystal method, the undiluted urine method, and the use of scanning electron microscopy (SEM). CMP showed the protein band of 31 kDa in SDS-PAGE. Anti-CMP polyclonal antibody and antihuman prothrombin antibody cross-reacted well with human prothrombin and CMP in Western blotting. CMP and human prothrombin had high inhibitory potency by the seed crystal method and undiluted urine method. Using SEM, we were able to observe the high inhibitory potency of human prothrombin and undiluted CMP on the aggregation of calcium oxalate crystals.
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