A new proline analogue with the camphor-based 1,3-diamine unit is presented. This readily available from chiral pool providing a organocatalyst one free primary amine group next to secondary of unit. The diamine fragment had significant effect on catalytic activity organocatalyst.

The organic solvent toluene is used widely in industry and is toxic to the central nervous system (CNS). To clarify the mechanisms of CNS toxicity following toluene exposure, especially with respect to the G protein-coupling of receptors, we determined the effects of toluene on the activation of Gi by stimulating human muscarinic acetylcholine receptor m2 subtypes (hm2 receptors) expressed in C...

With the use of a newly developed and convenient enzymatic method, tissue, urine and blood polyamine (diamine, spermidine and spermine) levels were evaluated as a tumor marker of renal cell carcinoma (RCC) in 50 cases with the disease. Furthermore, blood and urine polyamines were periodically determined and evaluated as a follow-up marker. The pretreatment three polyamine levels in tissue, bloo...

1. The induction of ornithine decarboxylase activity in mouse 3T3 fibroblasts or an SV-40 transformed 3T3 cell line by serum was prevented by addition of the naturally occurring polyamines putrescine (butane-1,4-diamine) and spermidine. Much higher concentrations of these amines were required to fully suppress ornithine decarboxylase activity in the transformed SV-3T3 cells than in the 3T3 fibr...

introduction: toluene is an organic solvent that it is one of the byproducts in the coke industry. exposure to toluene causes central nervous system dysfunction and others disorders. many workers are exposed to toluene due to leakage from tracks. therefore the aim of this study was to determine the levels of exposure through environmental and biological monitoring of toluene methods: air toluen...

background toluene is a cyclic aromatic hydrocarbon which is widely used as an industrial feedstock and as a solvent. it is one of the major parts of pollution in oil-contaminated environments. objectives the main aim of this study was to isolate and characterize a bacterium with high potential application in toluene bioremediation. materials and methods to isolate a toluene-degrading bacterium...

New Pd(II) and Pt(II) complexes of the type [M(bzoS)2(diamine)] {where M = or } from treatment one mole diamine ligands {diamine , phenanthroline (Phen), bipyridine (Bipy), ethylene (en), N,N′-dimethyl (dmen)} with [M(bzoS)2] complexes. The prepared were characterization by elemental analysis (CHN), molar conductivity, infrared spectroscopy, nuclear magnetic resonance proton (1H NMR). bzoS- lig...

1. The purification of monoamine oxidase and diamine oxidase from normal human term placental tissue is described. 2. The properties of these enzymes are reported and compared with the properties of unpurified human pregnancy plasma. 3. This comparison shows that the amine oxidase of pregnancy plasma has properties corresponding to purified placental diamine oxidase, suggesting a placental orig...

A fluidized bed reactor with ultraviolet lamp and TiO2/silica photo-catalyst prepared in our laboratory was used as a photo-reactor to degrade toluene in a simulated toluene-air mixture. The effects of operating parameters including initial toluene concentration, superficial gas velocity, ultraviolet light intensity and catalyst bed height on degradation rate of toluene have been investigated i...