-transparent.png){kind=logo}
Brain Na,K-ATPase is subjected to direct modifying influence of the hypochlorite anion and hydrogen peroxide resulting in irreversible inactivation of the enzyme. The K0.5 values for these compounds are 20-40 microM and 1 mM, respectively. The inhibiting effect of hydrogen peroxide is suppressed by desferrioxamine (by 20-30%) which indicates that the H2O2-induced inhibition is partly due to the generation of the hydroxyl radical. Carnosine, homocarnosine and the hydrophobic antioxidants, alpha-tocopherol and ionol, protect the enzyme from H2O2: their effective concentrations are to 10 mM (carnosine), 5 microM (alpha-tocopherol), and 0.5 microM (ionol). The data obtained suggest that inhibition of Na,K-ATPase by the antioxidants is caused by their direct action on the protein molecule, while the protective effect of natural hydrophilic antioxidants are due to the quenching of the hydroxyl radical.
A A Boldyrev, and
E R Bulygina, and
E A Volynskaia, and
E G Kurella, and
O V Tiulina
May 1994,
General pharmacology,
A A Boldyrev, and
E R Bulygina, and
E A Volynskaia, and
E G Kurella, and
O V Tiulina
January 2004,
Drug metabolism and drug interactions,
A A Boldyrev, and
E R Bulygina, and
E A Volynskaia, and
E G Kurella, and
O V Tiulina
April 1996,
Experientia,
A A Boldyrev, and
E R Bulygina, and
E A Volynskaia, and
E G Kurella, and
O V Tiulina
October 1986,
Biulleten' eksperimental'noi biologii i meditsiny,
A A Boldyrev, and
E R Bulygina, and
E A Volynskaia, and
E G Kurella, and
O V Tiulina
January 2015,
PloS one,
A A Boldyrev, and
E R Bulygina, and
E A Volynskaia, and
E G Kurella, and
O V Tiulina
January 1981,
Biokhimiia (Moscow, Russia),
A A Boldyrev, and
E R Bulygina, and
E A Volynskaia, and
E G Kurella, and
O V Tiulina
January 2002,
Zeitschrift fur Naturforschung. C, Journal of biosciences,
A A Boldyrev, and
E R Bulygina, and
E A Volynskaia, and
E G Kurella, and
O V Tiulina
October 1976,
Biokhimiia (Moscow, Russia),
A A Boldyrev, and
E R Bulygina, and
E A Volynskaia, and
E G Kurella, and
O V Tiulina
March 1982,
Biochemical pharmacology,
A A Boldyrev, and
E R Bulygina, and
E A Volynskaia, and
E G Kurella, and
O V Tiulina
March 1990,
Neurochemical research,
