succinyladenosine and dihydrouracil

An automated screening system for purine and pyrimidine metabolism disorders using high-performance liquid chromatography (HPLC) with column switching is described. The system consists of a reversed-phase column, a cation-exchange column, a column switch, four sets of ultraviolet absorbance detectors, a microcomputer and other conventional equipment. As this system permits the simultaneous determination of urinary orotic acid, uracil, dihydrouracil, pseudouridine, xanthine, 2,8-dihydroxyadenine and succinyladenosine, it offers a useful method for the detection of orotic aciduria, dihydropyrimidine dehydrogenase deficiency, dihydropyrimidinuria, xanthinuria, adenine phosphoribosyltransferase deficiency and adenylosuccinase deficiency.

Topics: Adenine; Adenosine; Autoanalysis; Chromatography, High Pressure Liquid; Humans; Orotic Acid; Pseudouridine; Purine-Pyrimidine Metabolism, Inborn Errors; Uracil; Xanthine; Xanthines