109 research outputs found
<Abstract of Published Report>Growth Suppressing Activity for Endothelial Cells Induced from Macrophages by Carboxymethylated Curdlan.
<Abstract of Published Report>Biological Activities of (1→3)-β-D-Glucans with Reducing Glucose Side Chains.
<Abstract of Published Report>Preparation of Novel(1→3)-β-D-Glucans Having Reducing Glucose Side Chains.
<Abstract of Published Report>Purification of a Growth-Suppressing Factor for Bovine Artery Endothelial Cells from Mouse Lymphoma P388D1 Cells.
<Abstract of published report>Effect of 3-Deoxyglucosone on the Activities of Enzymes Responsible for Glucose Metabolism in Mouse Liver.
<Abstract of published report>Preparation and Antitumor Activities of Mitomycin C-(1→6)-Branched (1→3)-β-D-Glucan Conjugate.
<Abstract of published report>Polysaccharides in Fungi. XXXVI. : Hypoglycemic Activity of a Polysaccharide (CS-F30) from the Cultural Mycelium of Cordyceps seninsis and Its Effect on Glucose Metabolism in Mouse Liver.
Electrochemical and Mechanistic Study of Superoxide Scavenging by Pyrogallol in N,N-Dimethylformamide through Proton-Coupled Electron Transfer
Scavenging of electrogenerated superoxide radical anion (O2•−) by pyrogallol (PyH3) was investigated on the basis of cyclic voltammetry and in situ electrolytic electron spin resonance spectrum in N,N-dimethylformamide with the aid of density functional theory (DFT) calculations. Quasi-reversible dioxygen/O2•− redox couple was modified by the presence of PyH3, suggesting that O2•− was scavenged by PyH3 through proton-coupled electron transfer (PCET) involving two proton transfer and one electron transfer. DFT calculation suggested that the pre-reactive formation of a hydrogen-bond (HB) complex and the subsequent concerted two-proton-coupled electron transfer characterized by catechol moiety in PyH3 is plausible mechanism that embodies the superior kinetics of the O2•− scavenging by PyH3 as shown in the electrochemical results. Furthermore, it was clarified that the three hydroxyl groups of PyH3 promote the formation of HB complex, in comparative analyses using related compounds, resulting in the promotion of the O2•− scavenging
<Abstract of Published Report>Activation of Macrophages and Neutrophils by an Endothelium Growth Suppressing Factor.
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