Influence of NF-κB on the development of oxidative-nitrosative stress in the liver of rats under conditions of chronic alcohol intoxication
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Published:2023-02-23
Issue:6
Volume:94
Page:57-66
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ISSN:2409-4943
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Container-title:The Ukrainian Biochemical Journal
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language:
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Short-container-title:Ukr.Biochem.J.
Author:
Mykytenko A. O., ,Akimov O. Ye.,Yeroshenko G. A.,Neporada K. S., , ,
Abstract
Alcohol-related liver disease is the most common cause of liver disease worldwide. The purpose of this work is the establishment of the influence of the transcription factor κB on the development of oxidative-nitrosative stress in the liver of rats under conditions of chronic alcohol intoxication. The experiments were performed on 24 male Wistar rats weighing 180-220 g. The animals were divided into 4 groups of 6 animals: control; animals, which were administered NF-κB inhibitor, namely ammonium pyrrolidinedithiocarbamate (PDTC) at a dose of 76 mg/kg 3 times a week; animals, on which we simulated alcoholic hepatitis and group of combination of alcoholic hepatitis and NF-κB inhibitor. We determined in rat liver homogenate the following biochemical parameters: the activity of NO synthase isoforms, superoxide dismutase and catalase activity, the concentration of malonic dialdehyde, the concentration of peroxynitrite, nitrites and nitrosothiols, concentration of sulfide anion and superoxide anion radical production. Chronic alcohol intoxication led to increased production of reactive oxygen and nitrogen species on the background of decreased antioxidant activity, thus intensifying lipid peroxidation in the liver. Blockade of the transcription factor κB during chronic alcohol intoxication despite an increase in antioxidant activity and decrease of reactive oxygen and nitrogen species production did not ameliorate oxidative damage to the liver. Blockade of activation of nuclear transcription factor κB in rat liver by PDTC reduced the risk of oxidative damage to hepatocytes, but did not reduce the risk of developing nitrosative damage to hepatocytes. Keywords: chronic alcohol intoxication, NF-κB, oxidative-nitrosative stress, PDTC, rat liver
Publisher
National Academy of Sciences of Ukraine (Co. LTD Ukrinformnauka) (Publications)
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