title: Microbiological assay of amino acids in serum: valine, leucine, and methionine.
abstract: A microbiological method for the assay of valine, leucine, and methionine in serum is described and its accuracy and reproducibility are assessed. Under the conditions specified the L-isomers only of the three amino acids are measured. The serum levels of the three amino acids in 60 normal subjects are presented.
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D001431:Bacteriological Techniques; D001681:Biological Assay; D011232:Chemical Precipitation; D005260:Female; D005374:Filtration; D006801:Humans; D007930:Leucine / Q000097:blood*; D008297:Male; D008715:Methionine / Q000097:blood* / Q000494:pharmacology; D008722:Methods; D008875:Middle Aged; D014633:Valine / Q000097:blood*
chemical_list: D008715:Methionine; D007930:Leucine; D014633:Valine