Leuco-erythroblastosis has many known associations (Burkett, Cox and Fields, 1965; Weick, Hagedorn and Linman, 1974; Retief, 1964), but the only ones related to drug therapy are the well established response to haematinics (Burkett et al., 1965) and one possible case following anti-epileptic therapy (Retief, 1964). The case described below is of leuco-erythroblastosis following steroid withdraw...

The application of Leuco Crystal Violet (LCV) for the enhancement of footwear and fingerprint impression evidence was first utilized in the FBI Laboratory in late 1993, after learning from Mr. John F. Fischer (1) of the formulation of this reagent. Mr. Fischer subsequently made a presentation on this topic at the International Symposium on Footwear and Tire Tread Impression Evidence at the FBI ...

Bacillus pyocyaneus produces, according to the conditions, different varieties of pigment of which pyoeyanine is best known and easily isolated because of its solubility in chloroform. This pigment is indigo blue at alkaline reaction, wine-red at acid reaction, and is reducible to a leuco compound by various reductants or in the absence of air by the living bacillus itself, and the leucodye is ...

The rate of reduction of 2,6-dichlorobenzenoneindophenol by xanthine oxidase plus its aldehydic or purine substrates is strikingly stimulated by the admixture of water-miscible organic solvents. In addition to acting as the electron acceptor in these assays, 2,6-dichlorobenzenoneindophenol is found to be a potent competitive inhibitor of xanthine oxidase with a K, of 1 X 10 6 M. The leuco form ...

We purified to homogeneity an enzyme from Citrobacter sp. strain KCTC 18061P capable of decolorizing triphenylmethane dyes. The native form of the enzyme was identified as a homodimer with a subunit molecular mass of about 31 kDa. It catalyzes the NADH-dependent reduction of triphenylmethane dyes, with remarkable substrate specificity related to dye structure. Maximal enzyme activity occurred a...

Indigo is one of the most important dyes in the textile industry. The control of the indigo concentration in dyeing liquors and effluents is an important tool to ensure the reproducibility of the dyed fabrics and also to establish the efficiency of the wastewater treatment. In this work, three analytical methods were studied and validated with the aim to select a reliable, fast and automated me...