scholarly journals Potentiation of hydrogen peroxide toxicity: From catalase inhibition to stable DNA-iron complexes

2017 ◽  
Vol 773 ◽  
pp. 274-281 ◽  
Author(s):  
Tulip Mahaseth ◽  
Andrei Kuzminov
Keyword(s):  
Hydrogen Peroxide ◽  
Iron Complexes ◽  
Catalase Inhibition

Oxidation of cyclic hydrocarbons with hydrogen peroxide over iron complexes encapsulated in cation-exchanged zeolite

2018 ◽  
Vol 303 ◽  
pp. 249-255 ◽  
Author(s):  
Syuhei Yamaguchi ◽  
Yuki Miyake ◽  
Keiko Takiguchi ◽  
Daijiro Ihara ◽  
Hidenori Yahiro
Keyword(s):  
Hydrogen Peroxide ◽  
Iron Complexes ◽  
Cyclic Hydrocarbons

Kinetic Model of Biphasic Character of Catalyse Inhibition

2003 ◽  
Vol 8 (1) ◽  
pp. 55-60
Author(s):  
J. Kulys ◽  
K. Kriaučiūnas ◽  
R. Vidžiūnaitė
Keyword(s):  
Hydrogen Peroxide ◽  
Intermediate Formation ◽  
Second Phase ◽  
Hydrogen Peroxide Decomposition ◽  
Peroxide Decomposition ◽  
Nonstationary Kinetics ◽  
Nonstationary State ◽  
Kinetics Of ◽  
Stop Flow ◽  
Catalase Inhibition

A mathematical model of kinetics of fungal catalase inhibition with hydroxylamine in presence of substrate (hydrogen peroxide) has been developed. The scheme includes an intermediate formation and slow reversible native enzyme production. The model is based on differential equations of nonstationary kinetics of the enzyme action. The computer simulation was carried out using adaptive Runge-Kuta method. Good satisfactory is achieved if the kinetic constants calculated by modeling nonstationary state of hydrogen peroxide decomposition are used for calculations of inhibition of the catalases at the second phase of inhibition and for kinetics of the intermediate formation, that was determined with stop-flow spectrophotometer.

scholarly journals Hydrogen Peroxide Oxygenation of Alkanes Including Methane and Ethane Catalyzed by Iron Complexes in Acetonitrile

2004 ◽  
Vol 346 (23) ◽  
pp. 317-332 ◽  
Author(s):  
Georgiy B. Shul'pin ◽  
Galina V. Nizova ◽  
Yuriy N. Kozlov ◽  
Laura Gonzalez Cuervo ◽  
Georg Süss-Fink
Keyword(s):  
Hydrogen Peroxide ◽  
Iron Complexes

scholarly journals Amyloid-β binds catalase with high affinity and inhibits hydrogen peroxide breakdown

1999 ◽  
Vol 344 (2) ◽  
pp. 293-296 ◽  
Author(s):  
Nathaniel G. N. MILTON
Keyword(s):  
Hydrogen Peroxide ◽  
Amyloid Β ◽  
High Affinity ◽  
Functional Assays ◽  
Compound Ii ◽  
Catalase Inhibition

Amyloid-β (Aβ) specifically bound purified catalase with high affinity and inhibited catalase breakdown of H2O2. The Aβ-induced catalase inhibition involved formation of the inactive catalase Compound II and was reversible. Catalase ↔ Aβ interactions provide rapid functional assays for the cytotoxic domain of Aβ and suggest a mechanism for some of the observed actions of Aβ plus catalase in vitro.

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