期刊
JOURNAL OF CHROMATOGRAPHY B-ANALYTICAL TECHNOLOGIES IN THE BIOMEDICAL AND LIFE SCIENCES
卷 844, 期 2, 页码 278-282出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jchromb.2006.07.022
关键词
NMDA receptor; serine racemase; chiral thiol; brain; neurochemistry; schizophrenia; Alzheimer's disease; epilepsy
A simple and versatile methodology using high-performance liquid chromatography (HPLC) with fluorimetric detection was developed to simultaneously determine D-serine along with other metabolically related neuroactive amino acids in the glutamatergic system: L-serine, L-glutamate, L-glutamine, and glycine. On-column sensitivity was in the lower picomole range. Of two chiral thiol reagents investigated, amino acid derivatives of o-phthaldialdehyde (OPA) in combination with N-isobutyryl-L-cysteine were found to have consistently higher responses than their corresponding N-tert-butyloxycarbonyl-L-cysteine derivatives. This methodology was applied to the quantitative detection of amino acids in human plasma and lays the foundation for further investigations of the role of neuroactive amino acids in the pathophysiology and treatment of neurological and psychiatric disorders. (c) 2006 Elsevier B.V. All rights reserved.
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