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. 2010 Aug;140(8):1418–1424. doi: 10.3945/jn.110.123042

TABLE 3.

Free intracellular concentrations of amino acids in skeletal muscle of young pigs after 60 min of infusion with saline, leucine, KIC, or norleucine1

Treatment
Amino acid Saline Leucine KIC Norleucine SE2
μmol/L
Alanine 260.9a 150.7b 127.8b 147.3b 26.1
Arginine 308.3 292.7 347.8 283.3 30.1
Aspartate + asparagine 173.2a 131.4b 144.6a,b 149.6a,b 14.2
Glutamate + glutamine 1,270.1 1,364.0 1,383.1 1,353.5 62.3
Glycine 503.2 509.4 541.1 539.2 49.9
Histidine 12.7a,b 11.5a,b 16.7a 10.5b 2.0
Isoleucine 29.1 26.5 28.7 28.9 1.8
Leucine 12.4c 41.2a 33.5b 9.4c 1.5
Lysine 14.1a 8.0b 6.6b 14.3a 1.7
Methionine 6.0 3.7 5.3 5.5 0.8
Norleucine n.d. n.d. n.d. 42.2 1.2
Phenylalanine 123.1 120.4 116.0 117.8 2.7
Proline 35.3 32.6 25.5 33.5 3.8
Serine 93.2a 71.9b 90.9a,b 77.8a,b 7.3
Threonine 158.1a,b 158.9a,b 142.0b 164.4a 7.9
Tryptophan 1.96a 1.30b,c 1.10c 1.63a,b 0.2
Tyrosine 40.1 39.1 28.0 33.1 8.1
Valine 21.9a 17.4a,b 15.0b 18.6a,b 1.7
1

Data are means per treatment, n = 7–8. Labeled means in a row with superscripts without a common letter differ, P < 0.05.

2

Pooled SE of treatment groups.