Inhibitory effect of alpha-tocopherol on methemoglobin formation by nitric oxide in normal and acatalasemic mouse hemolysates.
Copyright policy )Inhibitory effect of alpha-tocopherol on methemoglobin formation by nitric oxide in normal and acatalasemic mouse hemolysates.
The inhibitory effect of alpha-tocopherol on methemoglobin formation in normal and acatalasemic mice was studied by exposing their hemolysates to nitric oxide. Methemoglobin formation in normal and acatalasemic mouse hemolysates exposed to nitric oxide were significantly inhibited by the addition of alpha-tocopherol at final concentrations ranging from 1.2 to 5.8 mM. Negative correlations were observed between the logarithm of alpha-tocopherol concentration and the methemoglobin formation. The formation of methemoglobin in acatalasemic mouse hemolysates was greater than that in normal mouse hemolysates with or without added alpha-tocopherol. The methemoglobin formation in acatalasemic mice was also significantly inhibited by addition of more than 500 units/ml of catalase, and the methemoglobin formation in normal and acatalasemic mice was also inhibited with sodium diethyldithiocarbamate at a final concentration of 1 M.
- Okayama University Japan
Male, Mice, Inbred C3H, Dose-Response Relationship, Drug, Nitric Oxide, Hemolysis, Mice, Mutant Strains, Acatalasia, Kinetics, Mice, Reference Values, Animals, Vitamin E, Methemoglobin
Male, Mice, Inbred C3H, Dose-Response Relationship, Drug, Nitric Oxide, Hemolysis, Mice, Mutant Strains, Acatalasia, Kinetics, Mice, Reference Values, Animals, Vitamin E, Methemoglobin
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