Intensity of lipid peroxydation processes and activity of antioxidational ferments in erythrocytes at initial forms of vascular brain diseases

Javorskaya, V. A.; Malakhov, V. A.; Belous, A. M.

doi:10.17816/nb78942

Neurology bulletin

1995

DOI: 10.17816/nb78942

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Intensity of lipid peroxydation processes and activity of antioxidational ferments in erythrocytes at initial forms of vascular brain diseases

V. A. Javorskaya

V. A. Malakhov

A. M. Belous

Abstract: Level of spontaneous POL (over the accumulation of malonic dialdegid and dienic conjugates) and activity of antioxidational ferments of glutationreductase and glutationperoxidase, and also passive transport of Ca2+ in erythrocytes allowed to discover that the level of spontaneous POL was high along with lowering of activity of glutation-containing ferments and Ca2+ accumulation in erythrocytes. High activity of POL, lowering of activity of physiological antioxidational system, accumulation of Ca2+ in erythrocy… Show more

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2023

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Study of changes in the activity of glutathione system enzymes in the blood and liver in experimentally induced dyslipoproteinemia on the background of mechanical damage to the skeletal muscle in rats of different age groups

Pavlova,

Tulaeva,

Gulenko

et al. 2023

vmirvz

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Currently, there is a steady increase in morbidity and mortality from acute cerebrovascular conditions, which are based on vascular ischemic manifestations, which are systemic in nature. At the heart of the root cause of any ischemic process – heart attack, stroke, hypertension – is atherosclerosis and dyslipoproteinemia. One of the biomarkers of this pathological process is oxidative stress.The purpose of the study: to analyze the dynamics of the activity of glutathione peroxidase and glutathione reductase in the blood and liver of rats of different ages under oxidative stress caused by modeling dyslipoproteinemia followed by mechanical injury to the skeletal muscle.Materials and methods. The study was conducted on outbred healthy male rats, divided into two groups according to age: the first group (c) – 24-month-old (old) rats, weighing 230–250 grams in the amount of 120 pieces and the second group (m) – 6-month-old (young) rats, weighing 190–210 grams in the amount of 120 pieces, kept under standard vivarium conditions. All rats were divided into four subgroups within their group, 30 animals each. Animals of the first subgroup in each group (1s, 1m) are intact (old and young) animals, to which no effects were applied. Animals of the second subgroup (2c, 2m) (regeneration control, old and young) had a mechanical dissection in the region of the middle third of the gastrocnemius muscle of the hind limb. Animals of the first and second subgroups were on a standard vivarium diet and had free access to water and food. Animals of the third (3s, 3m) and fourth (4s, 4m) subgroups of each group were subjected to dyslipoproteinemia modeling for 63 days and received a high-carbohydrate and high-fat diet with an increased fat content of up to 30% by weight of dry matter and replacement of drinking water with a 20% fructose solution. After the specified time, the animals of the fourth subgroups of both groups were injured in the middle third of the gastrocnemius muscle of the hind limb.Conclusions. Against the background of dyslipoproteinemia, oxidative stress occurs in the tissues of young and old rats, which is reflected by a decrease in the activity of enzymes of the glutathione system. Mechanical injury of the calf muscle in combination with dyslipoproteinemia aggravates oxidative processes against the background of inflammation and leads to an even more intense decrease in the activity of glutathione peroxidase and glutathione reductase in the liver and blood tissues of rats, and in old animals these processes are more pronounced than in young ones.

show abstract

Study of changes in the activity of glutathione system enzymes in the blood and liver in experimentally induced dyslipoproteinemia on the background of mechanical damage to the skeletal muscle in rats of different age groups

Pavlova,

Tulaeva,

Gulenko

et al. 2023

vmirvz

View full text Add to dashboard Cite

show abstract

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Intensity of lipid peroxydation processes and activity of antioxidational ferments in erythrocytes at initial forms of vascular brain diseases

Cited by 1 publication

References 3 publications

Study of changes in the activity of glutathione system enzymes in the blood and liver in experimentally induced dyslipoproteinemia on the background of mechanical damage to the skeletal muscle in rats of different age groups

Study of changes in the activity of glutathione system enzymes in the blood and liver in experimentally induced dyslipoproteinemia on the background of mechanical damage to the skeletal muscle in rats of different age groups

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