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Table 5 Time course changes in plasma concentrations of selected amino acids in subjects with metabolic syndrome 1

From: Muscle p70S6K phosphorylation in response to soy and dairy rich meals in middle aged men with metabolic syndrome: a randomised crossover trial

  Soy (n = 10) Dairy (n = 10)
Time (min)
0 30 60 180 240 0 30 60 180 240
  μ mol/L
Arginine 8.7 ± 0.7 11.3 ± 0.8** 11.9 ± 1.0** 9.3 ± 0.9 8.5 ± 0.8 8.6 ± 0.4 9.6 ± 0.5 10.5 ± 0.7* 8.9 ± 0.6 7.7 ± 0.4
Asparagine 6.3 ± 0.8 8.7 ± 0.8** 8.4 ± 0.8** 6.4 ± 0.4 6.3 ± 0.5 6.3 ± 0.4 7.2 ± 0.5 8.0 ± 0.4** 6.6 ± 0.4 5.9 ± 0.2
Serine 12.9 ± 1.7 13.3 ± 0.8 15.2 ± 1.5 12.3 ± 1.6 11.5 ± 1.1 13.3 ± 1.4 15.4 ± 1.4 15.8 ± 1.4** 13.8 ± 1.4 12.7 ± 1.4
Glutamine 99.5 ± 7.0 90.9 ± 7.4* 95.6 ± 6.7 89.6 ± 4.1* 94.3 ± 4.8 99.7 ± 6.4 95.7 ± 6.5 103.1 ± 4.7 102.7 ± 6.5 103.4 ± 7.0
Taurine 8.6 ± 0.8 7.7 ± 0.5 8.0 ± 0.6 8.5 ± 0.6 8.6 ± 0.5 8.8 ± 0.5 7.4 ± 0.3* 8.3 ± 0.3 8.3 ± 0.5 8.2 ± 0.4
Glycine 36.7 ± 3.6 36.6 ± 3.4 37.4 ± 3.5 33.4 ± 2.5* 37.1 ± 4.8* 40.2 ± 3.8 35.8 ± 2.2 38.5 ± 2.5 34.5 ± 2.5** 32.9 ± 2.4*
Proline 65.8 ± 3.8 79.6 ± 5.5** 86.7 ± 7.8** 74.6 ± 4.6** 74.4 ± 6.3 68.5 ± 3.8 83.2 ± 5.0* 101.6 ± 5.8** 99.4 ± 5.9** 88.1 ± 5.9**
Lysine 16.6 ± 1.7 19.6 ± 2.5 19.4 ± 2.4 15.6 ± 2.3 16.8 ± 2.0 15.1 ± 1.1 20.5 ± 2.4* 18.6 ± 1.6** 19.8 ± 2.9 18.0 ± 2.1
Valine 99.0 ± 7.2 108.0 ± 6.5** 109.4 ± 7.6* 95.3 ± 6.3 93.2 ± 4.4 88.9 ± 4.7 101.3 ± 4.9* 112.2 ± 4.0** 111.1 ± 6.6** 103.4 ± 5.1**
Isoleucine 35.4 ± 2.6 47.6 ± 2.6** 47.8 ± 3.1** 38.4 ± 2.4 36.5 ± 1.7 31.7 ± 2.1 44.4 ± 2.8** 47.7 ± 2.2** 43.0 ± 3.2** 38.2 ± 3.1*
Leucine 78.2 ± 4.9 98.3 ± 4.4** 93.7 ± 4.8** 72.2 ± 3.6* 68.8 ± 2.6* 70.4 ± 4.9 100.6 ± 4.3** 103.5 ± 2.2** 90.4 ± 5.8** 83.8 ± 4.8*
∑BCAA 212.6 ± 18.7 253.9 ± 18.7* 251.0 ± 18.5* 205.9 ± 16.5 242.4 ± 21.1 196.2 ± 17.8 243.1 ± 18.4 264.8 ± 20.4* 247.6 ± 20.4* 224.0 ± 19.2*
∑Total AA 2 538.0 ± 62.8 585.7 ± 56.9** 605.4 ± 69.1** 515.6 ± 51.1 527.2 ± 125.8 489.0 ± 24.3 546.5 ± 24.7 602.4 ± 21.5** 569.7 ± 31.1** 527.2 ± 32.5
  1. 1Means which are statistically different from baseline (0 min) for each meal are indicated by; * P < 0.05, ** P < 0.01.
  2. 2Total AA: sum of measurable amino acids.