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Table 4 Amino acid concentrations in muscles (μmol/l of intracellular water)

From: Alterations in protein and amino acid metabolism in rats fed a branched-chain amino acid- or leucine-enriched diet during postprandial and postabsorptive states

  Fed animals Overnight starved animals
SLD (n = 10) HVLID (n = 10) HLD (n = 9) SLD + S (n =10) HVLID + S (n = 10) HLD + S (n = 10)
M. gastrocnemius
 Valine 269 ± 15 547 ± 28 a 166 ± 8 a,c 317 ± 9 352 ± 10 b 336 ± 19 b
 Isoleucine 129 ± 10 227 ± 12 a 72 ± 5 a,c 182 ± 5 b 199 ± 5 181 ± 8 b
 Leucine 193 ± 13 328 ± 19 a 533 ± 30 a,c 264 ± 7 b 302 ± 10 304 ± 18 b
 Glutamine 5773 ± 244 5731 ± 212 6665 ± 236 a,c 3870 ± 141 b 3892 ± 148 b 4714 ± 103 a,b,c
 Alanine 3188 ± 165 4838 ± 644a 4879 ± 183 a 3227 ± 103 3025 ± 61 b 3467 ± 115 b
M. soleus
 Valine 190 ± 8 452 ± 26 a 128 ± 9 a,c 229 ± 9 226 ± 6 b 215 ± 11 b
 Isoleucine 92 ± 6 184 ± 12 a 49 ± 6 a,c 126 ± 5 b 116 ± 3 b 109 ± 6 b
 Leucine 159 ± 10 287 ± 15 595 ± 93 a,c 231 ± 19 196 ± 4 216 ± 12 b
 Glutamine 12,374 ± 279 13,849 ± 451 15,137 ± 835 a 11,887 ± 357 11,962 ± 529 b 13,656 ± 334
 Alanine 3293 ± 99 3920 ± 151 a 3972 ± 204 a 3633 ± 131 3558 ± 132 3854 ± 112
M. ext.digitorum longus
 Valine 268 ± 9 552 ± 28 a 177 ± 7 a 336 ± 23 b 339 ± 8 b 330 ± 13 b
 Isoleucine 124 ± 4 235 ± 12 a 82 ± 7 a,c 199 ± 12 b 194 ± 10 b 182 ± 13 b
 Leucine 201 ± 8 354 ± 23 a 558 ± 27 a,c 297 ± 18 b 325 ± 38 b 297 ± 10 b
 Glutamine 8413 ± 322 9216 ± 293 9935 ± 480 a 5880 ± 175 b 6137 ± 193 b 6838 ± 140 b
 Alanine 3499 ± 136 4642 ± 111 a 5272 ± 235 a,c 3635 ± 143 3762 ± 115 b 3818 ± 110 b
  1. Means ± SE, p ˂ 0.05
  2. a compared to the corresponding control (SLD or SLD + S)
  3. b compared to the corresponding fed group
  4. c HLD (HLD + S) vs. HVLID (HVLID + S). Abbreviations as indicated in Table 1