Cardin de' Stefani E, Costa C
Boll Soc Ital Biol Sper. 1984 Aug 31;60(8):1541-7.
Tryptophan metabolism "via kynurenine" is altered in lues: after a load of 50 mg/Kg b.w. of L-tryptophan the urinary excretion of kynurenine, 3-hydroxykynurenine and xanthurenic acid is increased, suggesting a deficiency of vitamin B6.
在梅毒患者中,色氨酸通过犬尿氨酸途径的代谢发生改变:给予50mg/kg体重的L-色氨酸负荷后,犬尿氨酸、3-羟基犬尿氨酸和黄尿酸的尿排泄量增加,提示维生素B6缺乏。