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pubmed:abstractText |
A simple and specific enzymatic assay method for homocysteine is described. The method is based on the formation of S-adenosylhomocysteine from adenosine and homocysteine through the catalysis of S-adenosylhomocysteine hydrolase (EC 3.3.1.1), followed by its separation by high-performance liquid chromatography. The results for human blood, serum, and urine and those extracted from filter paper showed good correlation with those obtained on measurement with a conventional amino acid analyzer, which demonstrates that the method is useful for neonatal screening for homocystinuria.
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