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- W2002072934 abstract "Pyridinoline (Pyr) and deoxypyridinoline (Dpyr) are mature crosslinks which maintain the structure of the collagen fibril. Pentosidine (Pen) is a senescent crosslink and one of the advanced glycation end products. We developed a direct and one-injection method to measure Pyr, Dpyr, and Pen in the hydrolysate of tissues using reversed-phase high-performance liquid chromatography. Using a linear gradient of acetonitrile and a cleaning step, the objective crosslinks were well separated and continuously and automatically assayed. Recovery rates of Pyr, Dpyr, and Pen were 95–116, 94–110, and 92–120%, respectively (n= 5). The intraassay coefficients of variation for Pyr, Dpyr, and Pen were 5.3, 5.8, and 4.3%, respectively (n= 5), and the interassay coefficients of variation for Pyr, Dpyr, and Pen were 3.5, 4.6, and 5.7%, respectively (n= 5). Linear regression analysis showed the linearity (r= 0.999) of calibration line for each Pyr, Dpyr, and Pen. We measured the content of these crosslinks in the tissues from the young and old subjects. There was no difference in the content of Pyr and Dpyr between the young and the old group. On the other hand, the content of Pen in the old group was extremely higher than that in the young group. We demonstrated the direct method for measuring two kinds of major crosslinks which have different characters and believe that this method will be useful in determining the content of these crosslinks in tissues under various conditions." @default.
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- W2002072934 date "1990-01-01" @default.
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- W2002072934 title "P15. Comparison of collagen crosslink levels in ‘spot’ urine samples" @default.
- W2002072934 doi "https://doi.org/10.1016/8756-3282(90)90120-n" @default.
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