References
- Altman K., Greengard O. Correlation of kynure-nine excretion with liver tryptophan pyrrolase levels in disease and after hydrocortisone induction. J. din. Invest. 1966; 45: 1527
- Arend R. A., Leklem J. E., Brown R. R. Direct and steam distillation autoanalyzer methods for assay of diazotizable aromatic amine metabolites of tryptophan in urine and in serum. Biochem. Med. 1970; 4: 457
- Gal E. M., Sherman A. D. L-kynurenine: its synthesis and possible function in brain. Fed. Proc. 1978; 38: 727
- Hirata F., Nomiyama S., Hayaishi O. Indoleamine 2,3-dioxygenase. 1. Catalytic and molecular properties. Acta vitamin, enzymol. 1975; 29: 288
- Leklem J. E., Rose D. P., Brown R. R. Effect of oral contraceptives on urinary metabolite excretions after administration of L-tryptophan and L-kynurenine sulphate. Metabolism 1973; 22: 1499
- Madras B. K., Sourkes T. L. Formation of respiratory 14CO2 from variously labeled forms of tryptophan-14C in intact and adrenalectomized rats. Archs Biochem. 1968; 125: 829
- Price J. M. Disorders of the tryptophan metabolism. Univ. Mich. med. Bull. 1958; 24: 461
- Rose D. P., Yao Y. S., Brown R. R. Transport and further metabolism of intermediate compounds of the tryptophan-nicotinic acid ribonucleotide pathway by rat small intestine. Biochem. biophys. Acta 1968; 163: 93
- Sundaresan P. R., Coursin D. B. Microassay of pyridoxal phosphate using L-tyrosine-l-14C and tyrosine apodecarboxylase. Meth. Enzymol. 1970; 18: 509
- Warnell J. L., Berg C. P. The preparation of L-, D- and DL-kynurenine. J. Am. chem. Soc. 1954; 76: 1908
- Wolf H., Brown R. R. Studies on tryptophan metabolism in male subjects treated with hydrocortisone. J. din. Endocr. 1971; 33: 838
- Wolf H. Studies on tryptophan metabolism in man. The effect of hormones and vitamin B6 on urinary excretion of metabolites of the kynurenine pathway. Scand. J. din. Lab. Invest. 1974; 33(suppl. 136)
- Yess N., Price J. M., Brown R. R., Swan P. B., Linkswiler H. Vitamin B6 depletion in man; urinary excretion of tryptophan metabolites. J. Nutr. 1964; 84: 229