Total and free plasma concentrations of tryptophan decreased 73% in both patients and controls during tryptophan depletion and increased approximately 60% on the day of supplementation.

• 患者和对照的总血浆色氨酸浓度与游离色氨酸浓度在色氨酸缺失期均下降73%25，在补充色氨酸的当天大约增加60%25。