nitrogen balance during this period had a significant direct correlation with pre-diet concentrations of branched-chain amino acids ( r = 0.69 to 0.89 ) , methionine ( r = 0.85 ) , histidine ( r = 0.66 ) , alanine ( r = 0.73 ) , arginine ( r = 0.70 ) , ornithine ( r = 0.66 ) , total essential ( r = 0.87 , and nonessential ( r = 0.68 ) amino acids , with initial serum levels of triiodothyronine ( r = 0.66 ) and with the fall in triiodothyronine over the 40 days ( r = 0.79 ) .
C0001898
alanine
C0002520
amino acids