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Table 2 Amino acid measurements (μMol/l)

From: The relation between plasma tyrosine concentration and fatigue in primary biliary cirrhosis and primary sclerosing cholangitis

   PBC (n = 45) PSC (n = 27) HCV (n = 22) controls
Aromatic amino acids Tyrosine (mean ± SD) 76 ± 26
p = 0.0002
69 ± 24
p = 0.07
73 ± 25
p = 0.01
62 ± 14.4
  Phenylalanine (mean ± SD) 65 ± 15
p < 0.0001
59 ± 11
p = 0.11
54 ± 8
p = 0.26
56 ± 6.9
  Tryptophan (mean ± SD) 39 ± 8
p < 0.0001
43 ± 11
p = 0.085
40 ± 8
p = 0.0003
46 ± 6.1
Branched chain amino acids Valine (mean ± SD) 211 ± 47
p = 0.002
208 ± 42
p = 0.002
232 ± 45
p = 0.56
238 ± 41.7
  Isoleucine (mean ± SD) 55 ± 16
p < 0.0001
53 ± 13
p < 0.0001
67 ± 19
p = 0.51
70 ± 18.8
  Leucine (mean ± SD) 107 ± 30
p < 0.0001
101 ± 25
p < 0.0001
119 ± 28
p = 0.053
132 ± 27.1
Calculated ratio's Tryptophan-ratio (mean ± SD) 7.7 ± 1.5
p = 0.02
8.9 ± 1.8
p = 0.051
7.5 ± 1.0
p = 0.004
8.3 ± 1.14
  Tyrosine-ratio (mean ± SD) 16.3 ± 6.5
p < 0.0001
15.1 ± 5.0
p < 0.0001
14.0 ± 3.5
p < 0.0001
11.4 ± 2.17