Plasma Amino Acids in Young and Older Adult Human Subjects
- 1 January 1964
- journal article
- research article
- Published by Oxford University Press (OUP) in Clinical Chemistry
- Vol. 10 (1) , 32-40
- https://doi.org/10.1093/clinchem/10.1.32
Abstract
Nineteen amino acids were determined in the plasma of young and older individuals by the chromatographic procedure of Moore, Spackman, and Stein (7,8). Of the essential amino acids, valine, methionine, isoleucine, leucine, phenylalanine, and lysine were found to be lower in older subjects. In all, 11 of the 19 amino acids studied showed lower values in these individuals, indicating some differences in protein metabolism between the elderly and younger adults.Keywords
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