Ascorbate, 2-mercaptoethanol, and 2,3-dimercaptopropanol (l-3) are used as protective agents to stabilize solutions of tetrahydrofolate and its derivatives. The protective action of these compounds has been thought to be due exclusively to their reducing properties. The spontaneous decomposition of HI-folate to the diazotizable amine, p-aminobenzoylglutamate, has been used to measure quantitati...

background: brucellosis is a febrile zoonotic infectionand has worldwide distribution among humans as well asanimals. although the seroprevalence of brucellosis in variousanimals has been described in iran, there is only one report onequine brucellosis in the region. objectives: this study wascarried out to determine the seroprevalence of brucellosis inracing clubs and private horse owners in t...

The present study was designed to detect the presence of Hemagglutinin (HA) molecule, which recognizes and responds to foreign bodies, in the serum of Ariadne merione. On screening the natural hemagglutinating (HA) activity using various mammalian erythrocytes as indicator cells, highest hemagglutination titer was observed with rat erythrocytes. In cross adsorption tests, this RBC type was able...

The major aqueous equilibrium complexation reactions of vanadate in the presence of N,Ndimethylhydroxylamine (DMHA) and with dithiothreitol (DTT), β-mercaptoethanol, glycine, or cysteine in solution have been studied using 51V NMR spectroscopy. Previously unreported DMHA complexes of 2:1 and 2:3 V:DMHA stoichiometry were observed and characterized. Concentration studies showed that, for the thr...