Free amino acid content in the blood plasma of cosmonauts before and after a 175-day flight on Saliut-6
Popov, I.G.; Latskevich, A.A.
Kosmicheskaia Biologiia i Aviakosmicheskaia Meditsina 18(2): 26-33
1984
ISSN/ISBN: 0321-5040 PMID: 6716939 Document Number: 236084
Measurements of 17 free amino acids were performed before and after the Salyut-6 175-day space flight. At R + 1 both crewmembers showed a reduced concentration of most amino acids as compared to the preflight level. By R + 7 the preflight status was not yet reached. The diet in space flights apparently should be enriched with the following essential amino acids: preflight methionine, leucine, isoleucine, phenylalanine, lysine, threonine, cystine and tyrosine; postflight, lysine threonine, valine, leucine, isoleucine, phenylalanine, methionine and cystine.