Fluorescamine is a new reagent for the detection of primary amines in the picomole range.
Its reaction with amines is almost instantaneous at room temperature in aqueous media. The …

The reagent fluorescamine has been used for the fluorometric assay of proteins based on
their content of free amino groups and its applications to the monitoring of proteins during …

… Control tubes containing 0.05 bCi of 3-Wserotonin (creatinine sulfate complex, … containing
0.5 pCi of 1-W-phenylalanine. … study (see footnote 1) W-CO2 was evolved from uniformly …

Simultaneous immunological titration of DOPA and 5-hydroxytryptophan decarboxylase
activities, from a number of tissues of various species, showed that the two activities were not …

… 1 It0 ni:w .qwctromctcr. The procedure of Wang et al. (11) for I~hcnylnlaninc assay is
carriccl out) in the following manner: A mixture of 20 pl of l~hcngl:~lnnine (12 m31), 37.5 pl of …

The administration of L-dopa for several days has been shown to result in decreased activity
in vitro of the catecholamine biosynthetic enzymes in peripheral tissues, but not in the brain. …

… This report concerns applications of the waction to the quantitative assay of lwpiides, amino
acids, and aminea in solution and for detection ou paper and thin-layer chromatograms. …

L-Dopa, an intermediate in the biosynthesis of catecholamines, is now widely used in the
treatment of parkinsonism. A number of clinical observations suggested that L-dopa may …

Metabolism of tyrosine was examined in mice, some of which had been treated with an
inhibitor of aromatic-L-amino-acid decarboxylase. The results of the study indicate that as the …

The present study was undertaken to evaluate the effects of α-blocking agents on the rate of
catecholamine synthesis in vivo. It was found that phentolamine and phenoxybenzamine …