Results 241 to 250 of about 18,866 (283)

Mediatorless Carbohydrate/Oxygen Biofuel Cells with Improved Cellobiose Dehydrogenase Based Bioanode

Fuel Cells, 2014
AbstractDirect electron transfer (DET) between cellobiose dehydrogenase from Humicola insolens ascomycete (HiCDH) and gold nanoparticles (AuNPs) was achieved by modifying AuNPs with a novel, positively charged thiol N‐(6‐mercapto)hexylpyridinium (MHP). The DET enabled the use of the HiCDH enzyme as an anodic biocatalyst in the design of a mediatorless ...
V. Krikstolaityte, P. Lamberg, M. D. Toscano, M. Silow, O. Eicher‐Lorka, A. Ramanavicius, G. Niaura, L. Abariute, T. Ruzgas, S. Shleev   +9 more
openaire   +1 more source

Carbohydrate availability modifies sorbitol dehydrogenase activity of apple fruit

Physiologia Plantarum, 1999
Complete defoliation of the stem or spur and girdling the phloem (D/G) subtending a single apple (Malusdomestica Borkh.) fruit at 70 or more days after bloom resulted in reduction of fruit growth. Extractable sorbitol dehydrogenase (SDH) (enzyme code, 1.1.1.14) activity and sorbitol and starch content of the cortex tissue of fruit receiving D/G ...
openaire   +1 more source

Yarrowia lipolytica dehydrogenase/reductase: An enzyme tolerant for lipophilic compounds and carbohydrate substrates

Bioorganic & Medicinal Chemistry Letters, 2013
Yarrowia lipolytica short chain dehydrogenase/reductase (YlSDR) was expressed in Escherichia coli, purified and characterized in vitro. The substrate scope for YlSDR mediated oxidation was investigated with alcohols and unprotected carbohydrates spectrophotometrically, revealing a preference for secondary compared to primary alcohols.
Kamila, Napora, Tanja M, Wrodnigg, Patrick, Kosmus, Martin, Thonhofer, Karen, Robins, Margit, Winkler   +5 more
openaire   +2 more sources

Human skeletal muscle pyruvate dehydrogenase kinase activity increases after a low-carbohydrate diet

American Journal of Physiology-Endocrinology and Metabolism, 1998
To characterize human skeletal muscle enzymatic adaptation to a low-carbohydrate, high-fat, and high-protein diet (LCD), subjects consumed a eucaloric diet consisting of 5% of the total energy intake from carbohydrate, 63% from fat, and 33% from protein for 6 days compared with their normal diet (52% carbohydrate, 33% fat, and 14% protein).
S J, Peters, T A, St Amand, R A, Howlett, G J, Heigenhauser, L L, Spriet   +4 more
openaire   +2 more sources

11β-Hydroxysteroid dehydrogenase activity in acromegalic patients with normal or impaired carbohydrate metabolism

Steroids, 2009
The 11beta-hydroxysteroid dehydrogenase isoenzymes (11beta-HSD) catalyse the interconversion of cortisol (F) and cortisone (E). Earlier studies demonstrated that growth hormone (GH) and insulin resistance may exert opposite effects on the conversion of E to F by 11beta-HSD type 1.
Agnes, Mondok, Ibolya, Varga, Edit, Glaz, Nikolette, Szucs, Miklós, Tóth, Attila, Patocs, Gabriella, Beko, Karoly, Racz   +7 more
openaire   +2 more sources

Regulation of alcohol dehydrogenase in Drosophila melanogaster by dietary alcohol and carbohydrate

Insect Biochemistry, 1984
Abstract When fed to Drosphila melanogaster Canton-S wild-type larvae cultured axenically on Sang's modified medium C with 0.5% (w/v) sucrose, 2.5% (v/v) ethanol induced an alcohol dehydrogenase (ADH) activity at least 2.5-fold higher than the activity in larvae fed an unsupplemented 0.5% sucrose diet.
Stephen W McKechnie, Billy W Geer
openaire   +1 more source

Lactic acidemia, neurologic deterioration and carbohydrate dependence in a girl with dihydrolipoyl dehydrogenase deficiency

European Journal of Pediatrics, 1981
A girl with failure to thrive in the neonatal period was brought to the hospital at 10 weeks of age following a respiratory arrest, preceded by 12 h of vomiting and diarrhea. There was significant acidosis with a blood lactate of 8.8 mM. A high carbohydrate diet decreased her acidosis.
B H, Robinson, J, Taylor, S G, Kahler, H N, Kirkman   +3 more
openaire   +2 more sources

Pyrroloquinoline quinone‐dependent carbohydrate dehydrogenase: Activity enhancement and the role of artificial electron acceptors

Biotechnology Journal, 2010
AbstractPyrroloquinoline quinone (PQQ)‐dependent glucose dehydrogenase (PQQ‐GDH) offers a variety of opportunities for applications, e.g. in highly sensitive biosensors and electrosynthetic reactions. Here we report on the acceleration (up to 4.9 x 104‐fold) of enzymatic ferricyanide reduction by artificial redox mediators (enhancers).
Juozas, Kulys, Lidija, Tetianec, Irina, Bratkovskaja   +2 more
openaire   +2 more sources

Effect of stress on hepatic 11β-hydroxysteroid dehydrogenase activity and its influence on carbohydrate metabolism

Canadian Journal of Physiology and Pharmacology, 2006
Stress activates the synthesis and secretion of catecholamines and adrenal glucocorticoids, increasing their circulating levels. In vivo, hepatic 11β-hydroxysteroid dehydrogenase 1 (HSD1) stimulates the shift of 11-dehydrocorticosterone to corticosterone, enhancing active glucocorticoids at tissue level.
María Eugenia, Altuna, Sandra Marcela, Lelli, Leonor C, San Martín de Viale, María Cristina, Damasco   +3 more
openaire   +2 more sources

Dehydrogenase in carbohydrate metabolism in larvae of the silkworm, Bombyx mori L.

Journal of Insect Physiology, 1967
Abstract The dehydrogenases involved in both glycolytic and pentose phosphate pathways were studied with larval tissues of the silkworm, Bombyx mori L. The highest activity of G-6-P dehydrogenase and 6-PG dehydrogenase was found in the fat body. The purification of these two enzymes was partially carried out by precipitating with ammonium sulphate ...
openaire   +2 more sources