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Separations 2016, 3(4), 30;

Enantiomeric Ratio of Amino Acids as a Tool for Determination of Aging and Disease Diagnostics by Chromatographic Measurement

Department of Physical and Macromolecular Chemistry, Faculty of Science, Charles University, 128 43 Prague, Czech Republic
Author to whom correspondence should be addressed.
Academic Editor: W John Lough
Received: 5 April 2016 / Revised: 22 September 2016 / Accepted: 28 September 2016 / Published: 12 October 2016
(This article belongs to the Special Issue Advance in Chiral Chromatography)
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Occurrence of d-amino acids in living organisms is a useful indicator of various changes, diseases, or disorders. Determination of amino acid enantiomers, namely the enantiomeric ratio of amino acids or excess of certain d-amino acids, represents a useful tool in the studies of aging processes or biomarkers in disease/disorder diagnosis in humans. The amount of d-amino acids is usually very low. Therefore, suitable sample pretreatment, often derivatization, and highly selective and sensitive separation methods are essential for d-amino acid analysis in this field. Chromatographic techniques offer appropriate choices for solving these tasks. This review covers the advances in methodology and development of improved instrumental chromatographic methods focused on d,l-amino acid separation and determination. New findings in the area of possible d-amino acid biomarkers are also included. View Full-Text
Keywords: chromatography; amino acids; enantiomeric ratio; aging; biomarkers chromatography; amino acids; enantiomeric ratio; aging; biomarkers

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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

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Kalíková, K.; Šlechtová, T.; Tesařová, E. Enantiomeric Ratio of Amino Acids as a Tool for Determination of Aging and Disease Diagnostics by Chromatographic Measurement. Separations 2016, 3, 30.

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