LIVER AND AMINO ACID LEVELS IN BLOOD 
TABLE II 
CHANGES IN PLASMA FREE AMINO ACIDS PRODUCED BY ISOLATED PERFUSED RAT LIVER 


Plasma level in pomoles/roo ml Ratio 
Amino acid - $$ = (b)/(a) 
oh (a) 6h (b) 
Alanine 39.0 66.3 1.67 
a-Amino-n-butyric acid Slight trace Trace 
Valine 21.4 101.5 4-74 
Methionine Bh 1.02 0.324 
Isoleucine 14.8 75-3 5.10 
Leucine 15.5 74.0 -78 
Tyrosine 7.62 0.80 105 
Phenylalanine 6.73 4.31 0.64 
f-Alanine _ Trace 
Phosphoserine Trace 0.71 
Phosphoethanolamine -—— 6.80 
Taurine 22.9 29.4 1.28 
Urea 417.0 2090.0 5.02 
Methionine sulfoxides 1.04 8.83 8.50 
Aspartic acid 1.65 3.03 1.84 
Threonine 20.2 11.8 0.585 
Serine 24.0 10.0 0.406 
Asparagine 38.2 48.2 1.26 
Proline 12.6 7.6 0.604 
Glutamic acid 25.1 107.8 4.30 
Citrulline 5.85 — 
Glycine 30.0 8.23 0.228 
Galactosamine 18.2 8.64 0.474 
y-Amino-n-butyric acid 2.53 0.87 0.344 
Ornithine 6.05 15.3 2.53 
Ethanolamine 3.24 STG] 2.40 
Ammonia 2960.0 160.0 0.54 
Lysine 35-2 24.2 0.68 
1-Methylhistidine 0.57 2.90 5.10 
Histidine 5-27 Wage 1.46 
3-Methylhistidine Very slight trace Very slight trace 
Arginine 13.8 -_— 
Cysteic acid 0.93 9.20 9.90 
References p. 721 
717 
