منابع مشابه
Effect of organic mercurials and sulfhydryl compounds on the urease activity of Proteus: inhibition by urine and ascorbic acid.
Meralluride, mercaptomerin, ethacrynic acid, and penicillamine inhibited urease activity of Proteus mirabilis. The activity of the organic mercurials and ethacrynic acid was markedly inhibited by human and dog urine. Antiurease activity could not be detected in the urine of a human and a dog given meralluride by injection. Urine from patients receiving penicillamine also failed to inhibit ureas...
متن کاملInhibition of urease by copper salts in the presence of ascorbic acid and related substances.
Elson (1943) found that urease is inhibited by small amounts of ascorbic acid and that this inhibition is eliminated in the presence of cysteine. Quastel (1943) suggested that the inhibition was due to a reaction between dehydroascorbic acid and an -SH group of the enzyme, and that the protective effect of thiol compoundcls was due to the fact that they reduced dehydroascorbic acid. Giri & Sesh...
متن کاملGreen Synthesis and Urease Inhibitory Activity of Spiro-pyrimidinethiones/spiro-Pyrimidinones-barbituric Acid Derivatives
Sulfonic acid functionalized SBA-15 (SBA-Pr-SO3H) with pore size 6 nm as an efficient heterogeneous nanoporous solid acid catalyst exhibited good catalytic activity in the Biginelli-like reaction in the synthesis of spiroheterobicyclic rings with good yield and good recyclability. Spiro-pyrimidinethiones/spiro-pyrimidinones-barbituric acid derivatives were synthesized in a simple and efficient ...
متن کاملGreen Synthesis and Urease Inhibitory Activity of Spiro-pyrimidinethiones/spiro-Pyrimidinones-barbituric Acid Derivatives
Sulfonic acid functionalized SBA-15 (SBA-Pr-SO3H) with pore size 6 nm as an efficient heterogeneous nanoporous solid acid catalyst exhibited good catalytic activity in the Biginelli-like reaction in the synthesis of spiroheterobicyclic rings with good yield and good recyclability. Spiro-pyrimidinethiones/spiro-pyrimidinones-barbituric acid derivatives were synthesized in a simple and efficient ...
متن کاملAscorbic Acid and Cozymase
Virtanen, A. I. & Hietala, P. K. (1955b). Acta chem. scand. 9, 549. Virtanen, A. I. & Kari, S. (1954). Acta chem. 8cand. 8, 1290. Virtanen, A. I. & Kari, S. (1955). Acta chem. 8cand. 9, 170. Virtanen, A. I. & Linko, P. (1955). Acta cUem. 8cand. 9, 551. Virtanen, A. I., Uksila, E. & Matikkala, E. J. (1954). Acta chem. 8cand. 8, 1091. Vogel, H. J. (1953). Proc. nat. Acad. Sci., Wa8h., 39, 578. Vo...
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ژورنال
عنوان ژورنال: Nature
سال: 1943
ISSN: 0028-0836,1476-4687
DOI: 10.1038/152215b0