Table 2.
Plasma phenylalanine and threonine concentration and enrichment data
| CA, nmol/ml |
EA (Tracer/Tracee Ratio) |
|||
|---|---|---|---|---|
| Phe | Thr | Phe | Thr | |
| Pre | 89 ± 7 | 112 ± 6 | 0 | 0 |
| 5 Min | 715 ± 96 | 154 ± 6 | 0.2034 ± 0.0096 | 2.5333 ± 0.0802 |
| 15 Min | 451 ± 52 | 150 ± 6 | 0.1320 ± 0.0072 | 1.2410 ± 0.0636 |
| 30 Min | 339 ± 36 | 148 ± 5 | 0.1062 ± 0.0032 | 0.7159 ± 0.0185 |
| 45 Min | 283 ± 28 | 150 ± 4 | 0.0919 ± 0.0021 | 0.5024 ± 0.0146 |
| 60 Min | 259 ± 26 | 150 ± 4 | 0.0794 ± 0.0014 | 0.3842 ± 0.0132 |
Data are means ± SE. Pre, basal/baseline enrichment of the tracers; CA, concentrations of plasma Phe and Thr, expressed in nmol/ml; EA, enrichments of plasma Phe and Thr, expressed as tracer/tracee ratio.