Blood amino acid (µmol/mL)

Gln

Glu

Gln + Glu

First

0.259 ± 0.020^A

0.209 ± 0.015^A

0.467 ± 0.025^A

Third

0.237 ± 0.021^A

0.192 ± 0.011^A

0.430 ± 0.022^A