Showing papers by "Norbert W. Seidler published in 2006"
TL;DR: The effects of sevoflurane, a halogenated ether anesthetic, on the catalytic and fluorescence properties of GAPDH are examined and indicate that this approach may lead to delineation of a novel contribution to the mechanism of anesthesia.
Abstract: The mechanism of inhalation anesthesia remains to be fully elucidated. While certain neuronal membrane proteins are considered sites of action, cytosolic proteins may also be targets. We hypothesize that inhaled anesthetics may act via glyceraldehyde 3-phosphate dehydrogenase (GAPDH), which has recently been shown to participate in neuronal inhibition. We examined the effects of sevoflurane, a halogenated ether anesthetic, on the catalytic and fluorescence properties of GAPDH. Initial rates of oxidoreductase activity decreased approximately 30% at saturating levels of sevoflurane. NADH-stimulated oxidoreductase activity (25 μM NADH; 0.8 mM NAD+) increased with sevoflurane. Sevoflurane quenched tryptophan fluorescence emission and increased polarization. Additionally, sevoflurane increased the susceptibility of GAPDH to thermal denaturation suggesting an effect on conformation. Our findings warrant further research on sevoflurane's effect on GAPDH and indicate that this approach may lead to delineation of ...
8 citations
TL;DR: The current paper outlines the proposed steps in forming thin plastic fragments of Abeta-polyacrolein and hypothesizes that plastic composite material contributes to plaque formation.
1 citations