Table 5.
Fractional synthesis rate (FSR) and absolute synthesis rate (ASR) of tissue proteins in rats after ingestion of the meal
| Acute | Chronic | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| MPI | RPI | MPI | RPI | Stat | |||||
| Mean | SD | Mean | SD | Mean | SD | Mean | SD | effecta | |
| Intestinal mucosa | |||||||||
| FSR (%/d) | 313 | 107 | 335 | 106 | 433 | 214 | 352 | 85 | NS |
| ASR (gP/d) | 1.36 | 0.56 | 1.45 | 0.55 | 1.80 | 1.03 | 1.46 | 0.29 | NS |
| Liver | |||||||||
| FSR (%/d) | 109 | 10 | 100 | 13 | 96 | 11 | 108 | 13 | NS |
| ASR (gP/d) | 2.06 | 0.26 | 1.97 | 0.37 | 1.87 | 0.29 | 2.22 | 0.36 | NS |
| Kidney | |||||||||
| FSR (%/d) | 81 | 12 | 78 | 19 | 93 | 36 | 81 | 22 | NS |
| ASR (gP/d) | 0.30 | 0.03 | 0.27 | 0.05 | 0.34 | 0.15 | 0.28 | 0.09 | NS |
| Total muscle | |||||||||
| FSR (%/d) | 9.7 | 2.1 | 9.5 | 2.7 | 11.3 | 4.0 | 10.9 | 2.1 | NS |
| ASR (gP/d) | 2.70 | 0.62 | 2.72 | 1.04 | 3.43 | 1.22 | 3.33 | 0.69 | NS |
| Skin | |||||||||
| FSR (%/d) | 17.0 | 5.3 | 21.3 | 4.0 | 24.4 | 9.6 | 16.8 | 6.5 | NS |
| ASR (gP/d) | 2.18 | 0.63 | 3.04 | 1.10 | 2.84 | 1.14 | 2.40 | 1.07 | NS |
| Visceral organsb (gP/d) | 3.4 | 0.6 | 3.3 | 0.8 | 3.7 | 1.2 | 3.5 | 0.5 | NS |
| Peripheral tissuec (gP/d) | 5.2 | 1.0 | 6.0 | 1.5 | 6.6 | 1.2 | 6.0 | 1.3 | NS |
| Total protein synthesis (gP/d) | 8.6 | 1.4 | 9.1 | 1.8 | 10.1 | 2.2 | 9.5 | 1.4 | NS |
NS: not significant. a Two way ANOVA; b Amount of intestinal mucosa, liver and kidney ASR; c Amount of muscle and skin ASR.