Journal
ACTA BIOCHIMICA ET BIOPHYSICA SINICA
Volume 43, Issue 6, Pages 480-486Publisher
OXFORD UNIV PRESS
DOI: 10.1093/abbs/gmr037
Keywords
cardiomyocytes; lipid peroxidation; stress; nitric oxide; superoxide-dismutase; catalase
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Funding
- Georgian National Science Foundation [GNSF/ST08/2-375]
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We studied the functionality of the antioxidant system in laboratory rat cardiomyocytes and blood under psycho-emotional stress. It was found that 40-day isolation and violation of diurnal cycle among the animals were accompanied by the intensification of lipid peroxidation process and marked with a reduced activity of antioxidant system enzymes, such as catalase and superoxide dismutase activity. The results suggested that psycho-emotional stress was accompanied by oxidative stress, causing a reduction in the intensity of energy metabolism in cardiomyocytes, which was further strengthened by the fact that the activity of the enzymes involved in ATP synthesis in mitochondria was reduced. Based on the results, we proposed that psychological stress is one of the factors contributing to the development of various cardiac diseases.
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