Various species of Clostridium, Bacteroides, Propionibacterium and Eubacterium were incubated in a 1% solution of 1,2-O-iso-propylidene-D-glucofuranose in a peptone-yeast-extract (PY) medium according to the VPI-technique. The volatile and non volatile acids were investigated by gas-liquid chromatography. All microorganisms showed a
Methyl alpha,beta-D-glucofuranoside (1) and 1,2-O-isopropylidene-alpha-D-glucofuranose (2) have been polymerized thermally, using 0.1% phosphoric acid as catalyst. The resulting alcohol-insoluble polymers were analyzed by gel-permeation chromatography and methylation analysis. The two starting materials gave polymers that were very similar in molecular-weight
The gluconeogenic contribution to glucose production in livers isolated from rats fasted for 24 h was determined by 13C-NMR isotopomer distribution analysis of secreted glucose enriched from 99% [13C]bicarbonate (n = 4) and 99% [1-13C]lactate (n = 4). Experiments with
American journal of physiology. Endocrinology and metabolism, 288(4), E654-E662 (2004-11-25)
The metabolic mechanism of hepatic glucose overproduction was investigated in 3,3'-5-triiodo-l-thyronine (T3)-treated rats and Zucker diabetic fatty (ZDF) rats (fa/fa) after a 24-h fast. 2H2O and [U-13C3]propionate were administered intraperitoneally, and [3,4-13C2]glucose was administered as a primed infusion for 90
A triple-tracer method was developed to provide absolute fluxes contributing to endogenous glucose production and hepatic tricarboxylic acid (TCA) cycle fluxes in 24-h-fasted rats by (2)H and (13)C nuclear magnetic resonance (NMR) analysis of a single glucose derivative. A primed
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