Evaluation of trends in the rate of infectious diseases of blood donors is essential for monitoring safety of blood supply and effective screening of donors. Transfusion records of blood donors who attended the Center between 2002 and 2005 were reviewed for positive cases of HBS (by ELISA), HIV (by Western Blot) and HCV (by ELISA). During 2002–05, 507,531 persons donated blood. The prevalence r...

A large number of previous clinical studies have reported a delayed graft function for brain dead donors, when compared with living relatives or cadaveric organ transplantations. However, there is no accurate method for the quality evaluation of kidneys from brain‑dead donors. In the present study, two‑dimensional gel electrophoresis and MALDI‑TOF MS‑based comparative proteomic analysis were co...

Numerous low-Mr metabolites--including creatinine, citrate, hippurate, glucose, ketone bodies, and various amino acids--have been identified in 400- and 500-MHz proton nuclear magnetic resonance (1H NMR) spectra of intact human urine. The presence of many of these was related to the specific condition of the donors: humans in different physiological states (resting, fasting, or post-exercise) a...

The key step in chlorophyll biosynthesis is photoreduction of its immediate precursor, protochlorophyllide. This reaction is catalyzed by a photoenzyme, protochlorophyllide oxidoreductase (POR) and consists in the attachment of two hydrogen atoms in positions C17 and C18 of the tetrapyrrole molecule of protochlorophyllide; the double bond is replaced with the single bond. Two hydrogen donors in...

Reduction of CBr2F2, Difluorocarbene CBr2F2 (1) is reduced by lead metal even at room temperature with intermediate formation of :CF2. At 40 to 60 °C this reaction is rapid and nearly quantitative. Electronrich olefins allow the trapping of difluorocarbene in the form of the corresponding 1,1difluorocyclopropanes in up to 90% yield. In dichloromethane, dichloroethane or acetonitrile the reducti...

Laguna, Tenerife, Canarias, Spain haemand Mo-dependent and Mo-dependent activities of nitrate reductase, determined with the non-physiological electron donors FMNH, and reduced methyl viologen respectively, were less affected. A similar inactivation was found with the proton ionophores 2,rddinitrophenol and carbonyl cyanide m-chlorophenylhydrazone. The inactive enzyme was found in the particula...

The asymmetric unit of the title compound, [Li(C(6)H(3)N(2)O(4))(H(2)O)](n), contains an Li(I) ion with a distorted trigonal-bipyramidal coordination environment. It is chelated by a singly protonated ligand mol-ecule via its heterocyclic N atom, by two O aoms, each donated by an adjacent carboxyl-ate group, and is further coordinated by a water O atom which acts as a bridge, forming a mol-ecul...

The interaction of the important but often overdosed local anesthetic bupivacaine, its structural analogs 2,6-dimethylaniline, and N-methyl-2,6-dimethylacetanilide, and cocaine, with several electron deficient aromatic moieties were studied primarily by proton NMR and UV-visible spectroscopy. In solution, the anesthetic, its analogs and cocaine are electron donors and form pi-pi charge transfer...

Synthesis and characterization of a novel type of ambident bridging ligands joining together the functional prerequisites for visible-light absorption, photoinduced electron transfer and catalytic proton reduction is presented. This class of compounds consists of a chromophoric 1,2-diimine-based π-acceptor site and a rigid polyaromatic dithiolate chelator. Due to the presence of a common conjug...