title: [Free amino acid content in the blood plasma of cosmonauts before and after a 175-day flight on Saliut-6].
abstract: 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. It is recommended to enrich the space diet 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.
mesh_terms: D000596:Amino Acids / Q000097:blood*; D001322:Autoanalysis; D005609:Free Radicals; D006801:Humans; D008297:Male; D013026:Space Flight; D013997:Time Factors; D014586:USSR
chemical_list: D000596:Amino Acids; D005609:Free Radicals
vernacular_title: Soderzhanie svobodnykh aminokislot v plazme krovi u kosmonavtov do i posle 175-sutochnogo poleta na "Saliute-6".