Table 2.
Concentrations of total Trp, Tyr, LNAA and free-Trp before and after supplementation.
| Blood collection time (min) | |||||
| Group | Trial | Rest | 40 | End | |
| Total [Trp] (μmol·l-1) | Plc | Pre | 58.3(12) | 56.7(22) | 63.9(11) |
| Post | 55.2(14) | 67.7(22) | 75.5(16)§ | ||
| Cr | Pre | 47.8(14) | 71.1(16)§ | 69.9(17)§ | |
| Post | 53.4(5) | 62.3(7)§ | 71.7(21)§ | ||
| Resp | Pre | 47.5(6) | 65.8(15)§ | 68.7(18)§ | |
| Post | 53.6(7) | 62.4(8)§ | 71.6(20)§ | ||
| [Tyr] (μmol·l-1) | Plc | Pre | 85.3(18) | 94.8(12) | 116(24)§ |
| Post | 76.9(41) | 86.5(33) | 104.1(36) | ||
| Cr | Pre | 71.9(37) | 111.5(41)§ | 121.7(46)§ | |
| Post | 81.3(34) | 104.9(31)§ | 112.4(52)§ | ||
| Resp | Pre | 70.3(31) | 112.1(36)§ | 118.3(45)§ | |
| Post | 74.6(33) | 109.8(31)§ | 114.5(51) | ||
| [LNAA] (μmol·l-1) | Plc | Pre | 831(29) | 902(211) | 986(254) |
| Post | 873(233) | 897(171) | 994(375) | ||
| Cr | Pre | 744(334) | 1076(340) | 945(326) | |
| Post | 812(189) | 806(372) | 933(361) | ||
| Resp | Pre | 732(279) | 1051(273) | 962(267) | |
| Post | 764(187) | 864(473) | 871(322) | ||
| Free-[Trp] (μmol·l-1) | Plc | Pre | 2.5(0.6) | 3.1(0.7)§ | 3.3(0.8)§ |
| Post | 2.6(1.2) | 3.2(0.7)§ | 3.6(0.9)§ | ||
| Cr | Pre | 2.4(0.7) | 2.9(0.6)§ | 3.5(0.5)§ | |
| Post | 2.4(0.5) | 2.6(0.5)*§ | 3.0(0.7)*§ | ||
| Resp | Pre | 2.6(0.9) | 3.1(0.6) | 3.4(0.6)§ | |
| Post | 2.3(0.7) | 2.7(0.6)* | 3.0(0.5)*§ | ||
Values are given as median (IQR).
* Indicates a significant difference from pre-supplementation values
§ Indicates a significant difference over time compared with the resting value
Resp: "responders"