Results 241 to 250 of about 65,595 (300)
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Reduction of Ferricyanide by Thiamine or Thiamine Pyrophosphate
Biochemical and Biophysical Research Communications, 1996The colorimetric assay for the activity of pyruvate dehydrogenase (EC 1.2.4.1) developed by Itokawa is based on a coupled reduction of ferricyanide and the formation of Prussian blue (Brian Research 94, 475-484). In this assay system, we found that the coenzyme, thiamine pyrophosphate, itself reduced ferricyanide independent of both the enzyme and the ...
G, Li, M E, Cook, W, Wu
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Biochemistry of Thiamine and Thiamine Phosphate Compounds
2013Thiamine (vitamin B1) is an essential molecule for all living organisms. It is the precursor for several phosphorylated derivatives, the most important being the coenzyme thiamine diphosphate (ThDP). Thiamine is transported into cells by specific transporters and pyrophosphorylated to ThDP in the cytosol.
Bettendorff, Lucien, Wins, Pierre
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Thiamine diphosphatase in thiamine deficiency
Experientia, 1962In Thiamin-Mangelkuken wurde eine erhohte Thiamin-Diphosphatase-Aktivitat festgestellt. In Figur 1 sind die Mengen an freigesetztem anorganischem Phosphat in μMol/g Gewebe/h angegeben. Die Normalwerte betragen durchschnittlich 43,0 Einheiten, wahrend das pathologische Gewebe bis zu 60 Einheiten enthalt.
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Annual Review of Nutrition, 1988
INTR ODUCTI ON.... . . ......... . .. . . . . . . . ....... 483 HIST ORY OF THI AMIN . ..... . . . . . . . ... . .. .. . . . . . . . . . . . . . . . . . . . . . . .... . . . . . . . . . . . . . . .. ... . . . . . . . . . 484 BI OCHEMISTRY AN D MET AB OLISM 485 Biosynthesis . . . . . . . . . ..... . . . . . . . . . . . . . . . . . . . . . . . . .
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INTR ODUCTI ON.... . . ......... . .. . . . . . . . ....... 483 HIST ORY OF THI AMIN . ..... . . . . . . . ... . .. .. . . . . . . . . . . . . . . . . . . . . . . .... . . . . . . . . . . . . . . .. ... . . . . . . . . . 484 BI OCHEMISTRY AN D MET AB OLISM 485 Biosynthesis . . . . . . . . . ..... . . . . . . . . . . . . . . . . . . . . . . . . .
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Archives of Toxicology, 1989
Acrylamide administration to rats caused clear alteration of blood thiamine content, which appeared to reflect suppressed intake and/or utilization of the vitamin in the body. Decreased utilization of thiamine does not seem to be induced by decreased binding of thiamine pyrophosphate (TPP) and apotransketolase, because acrylamide did not affect the Km ...
H, Igisu, I, Goto
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Acrylamide administration to rats caused clear alteration of blood thiamine content, which appeared to reflect suppressed intake and/or utilization of the vitamin in the body. Decreased utilization of thiamine does not seem to be induced by decreased binding of thiamine pyrophosphate (TPP) and apotransketolase, because acrylamide did not affect the Km ...
H, Igisu, I, Goto
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2018
Starting with a brief history of beriberi and the discovery that thiamin deficiency is its cause, the symptoms and signs are reviewed. None are pathognomonic. The disease has a low mortality and a long morbidity. The appearance of the patient can be deceptive, often being mistaken for psychosomatic disease in the early stages.
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Starting with a brief history of beriberi and the discovery that thiamin deficiency is its cause, the symptoms and signs are reviewed. None are pathognomonic. The disease has a low mortality and a long morbidity. The appearance of the patient can be deceptive, often being mistaken for psychosomatic disease in the early stages.
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Effect of Thiamin Deprivation on Thiamin Metabolism in Mice
The Journal of Nutrition, 1981Mice were made deficient by thiamin deprivation. Thiamin pyrophosphokinase and thiamin pyrophosphatase activities were measured, and their changes were compared to transketolase (TK), pyruvate and alpha-ketoglutarate dehydrogenase (DG) activities and thiamin pyrophosphate (TPP) level in the same tissues. Thiamin pyrophosphokinase activity was increased
R V, Trebukhina +4 more
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Thiamine-quinone adducts. Colorimetric determination of thiamine
Experientia, 19772, 3-dichloro-1,4-naphtoquinone reacts with thiamine in the presence of NH3 to give a 1∶2 adduct, for which structureII is proposed on the basis of analytical and spectroscopic (IR) data. Such a reaction is very useful for thiamine quantitative determination.
N, Gallo, V, De Mola
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Simultaneous excretion of thiamine and thiamine phosphates by the dog
American Journal of Physiology-Legacy Content, 1962The fate of intravenously infused thiamine phosphates was studied in the dog. The degree of dephosphorylation by blood, tissue perfusion, and by the kidney was measured. Clearance determinations showed smaller values for these substances than those for creatinine.
G, MALNIC +3 more
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Prostaglandins, Leukotrienes and Essential Fatty Acids, 2005
After peroxynitrite addition to aqueous solutions of thiamine at neutral and alkaline pH formation of thiamine disulfide and fluorescent products was observed. The fluorescent compounds were identified as thiochrome (TChr) and oxodihydrothiochrome (ODTChr) using spectral and fluorescent methods as well as paper chromatography and mass spectrometry ...
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After peroxynitrite addition to aqueous solutions of thiamine at neutral and alkaline pH formation of thiamine disulfide and fluorescent products was observed. The fluorescent compounds were identified as thiochrome (TChr) and oxodihydrothiochrome (ODTChr) using spectral and fluorescent methods as well as paper chromatography and mass spectrometry ...
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