Hens were rendered severely anaemic by the use of phenylhydrazine and the characteristics of the polychromatic erythrocytes appearing in the blood examined. Even the least-dense polychromatic erythrocytes obtained after density fractionation of anaemic blood on BSA density gradients had a volume mode only 1-5 times that of mature erythrocytes. Also the immature cells always contained less haemo...

Copper complexes of chiral tridentate pybox ligands synthesized using a modified procedure have been studied as catalysts for the enantioselective allylic oxidation of olefins. A variety of olefins have been used in this reaction. Using 5 mol% of a Cu(II) complex of the tridentate pybox ligand, phenylhydrazine, and tert-butyl perbenzoate as oxidant in acetone, optically active allylic benzoates...

Purpose. To study suppressor and/or cytotoxic activity of the nuclear erythroid cells (NEC) against tumor various origins. Material and Methods. C57Bl/6 mice P815, L1210, B16 L929 were used. “Phenylhydrazine” NECs obtained from with induced hemolytic anemia. “Erythropoietin” isolated “phenylhydrazine spleen” further cultured in presence erythropoietin. Another source NEC was neonatal mouse sple...

Photosynthetic oxygen evolution is catalyzed at the manganese-containing active site of photosystem II (PSII). Amines are analogs of substrate water and inhibitors of oxygen evolution. Recently, the covalent incorporation of (14)C from [(14)C]methylamine and benzylamine into PSII subunits has been demonstrated (Ouellette, A. J. A., Anderson, L. B., and Barry, B. A. (1998) Proc. Natl. Acad. Sci....

Chemically converted graphene that was reduced with phenylhydrazine was highly dispersed in organic solvents, and its "paper" prepared by filtration of the reduced graphene possessed an electrical conductivity value as high as 20,950 S m(-1).

BACKGROUND Pyrazoline derivatives have been found to possess a broad spectrum of biological activities. Among various pyrazoline derivatives, 2-pyrazolines seem to be the most frequently studied. A variety of methods have been reported for the preparation of this class of compound. However, in spite of their potential utility, some of the reported methods suffer from drawbacks such as long reac...

In Cancer Research, 26: 198-201, Feb. 1966, Brodsky et at. describe a method for determining the red cell survival in mice, based on whole-body counting after injection of 51Cr-labeled red cells. Inspired by this article, we decided to use the method which seemed to have some obvious advantages over the sampling method. Three hundred /L1. of red cells, labeled with 1 uc. 51Cr ( specific activit...

The atypical two-electron oxidation of thioanisole and its p-methyl, p-methoxy, and p-nitro analogues by horseradish peroxidase, contrary to earlier reports, stereoselectively produces the (8) sulfoxides in 6070% enantiomeric excess. Horseradish peroxidase reconstituted with 6-meso-ethylheme has little peroxidase (guaiacol oxidizing) activity, as previously reported, but exhibits increased sulf...