Abstract
The on-line coupling of capillary electrophoresis (CE) with electrospray-time-of-flight mass spectrometry (MS) has been used to obtain patterns of peptides and proteins present in the urine of healthy human individuals. This led to the establishment of a “normal urine polypeptide pattern”, consisting of 247 polypeptides, each of which was found in more than 50% of healthy individuals. Applying CE–MS to the analysis of urine of patients with kidney disease revealed differences in polypeptide pattern. Twenty-seven polypeptides were exclusively found in samples of patients. Another 13, present in controls, were missing. These data indicate that CE–MS can be applied as powerful tool in clinical diagnostics.
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