Tag Archives: catalase
Antioxidative effect of the N-stearoylethanolamine in the heart tissue and blood plasma of rats under doxorubicin treatment
I. A. Goudz, N. M. Gula, T. O. Khmel, T. M. Goridko, A. G. Berdyshev
Palladin Institute of Biochemistry, National Academy of Sciences of Ukraine, Kyiv;
e-mail: ngula@biochem.kiev.ua
The influence of N-stearoylethanolamine on the alterated antioxidant enzyme activity in the heart tissue and blood plasma of rats under the doxorubicin treatment was investigated. It was shown that doxorubicin administration caused the decrease of antioxidant enzymes activity (superoxide dismutase and glutathione peroxidase) in the heart tissue. Administration of the NSE promoted the partial normalization of these enzymes activity. It was shown that doxorubicin treatment caused the increase of the urea and creatinine level in the blood plasma of experimental animals. The NSE administration normalized the level of the urea and did not affect creatinine level.
Changes in oxidative stress intensity in blood of tumor-bearing rats following different modes of administration of rhenium-platinum system
K. L. Shamelashvili1, N. I. Shtemenko2, І. V. Leus3, S. O. Babiy4, O. V. Shtemenko5
1SE “Dnipropetrovsk Medical Academy” of Health Ministry of Ukraine;
2Palladin Institute of Biochemistry, National Academy of Sciences of Ukraine, Kyiv;
3University of Oklahoma, Oklahoma-city, USA;
4Institute of Gastroenterology, National Academy of Medical Sciences
of Ukraine, Dnipropetrovsk;
5Ukrainian State University of Chemical Technology, Dnipropetrovsk;
e-mail: shamelashvili@rambler.ru
Effects of the different modes of administration of dichlorotetra-μ-isobutyratodirhenium(ІІІ) – І – (in water solution, liposomes, nanoliposomes and together with cisplatin – in the rhenium-platinum system) on the intensity of lipid peroxidation (LP) in blood plasma and the activity of the erythrocyte antioxidant enzymes were investigated on the model of tumor growth. A decrease in the concentration of TBA-active substances caused by dirhenium compounds was shown to be independent of the administration mode and the extent of the tumor growth inhibition. I was four-times more effective in inhibition of the LP burst than any known antioxidant. I induced the increasing activity of erythrocyte superoxide dismutase and decreasing activity of catalase. In vitro experiments with native superoxide dismutase, the interaction of І with following activation of the active center of the enzyme was confirmed and the superoxide dismutase activity of І was shown, that may contribute to the enhancement of the enzyme activity in vivo. The cluster rhenium compounds may be promising nontoxic potent antioxidants capable of deactivating superoxide radicals.
Loach embryos prooxidant-antioxidant status under the influence of amide derivatives of 1,4-naphthoquinone
A. O. Bezkorovaynyj1,2, A. R. Zyn2, N. M. Harasym1, J. T. Len2,3, O. M. Figurka3, D. I. Sanagursky1
1Ivan Franko National University of Lviv, Ukraine;
2Lviv Expert Center of Scientific Researches Ministry of Internal Affairs of Ukraine;
3National University “Lviv Polytechnicа”, Ukraine;
e-mail: andriy.bezkorovajnyj@gmail.com
The mechanisms of disorders in cell functions induced by 1,4-naphthoquinone amide derivatives are not clarified yet. The article is dedicated to the study of features of these substances influence on loach Misgurnus fossilis L. embryos pro/antioxidant homeostasis during early embryogenesis. The aim of this work was to study the effect of 2-chloro-3-hydroxy-1,4-naphthoquinone, 2-chloro-3-(3-oxo-3-(piperidine-1-yl)propylamine)-1,4-naphthoquinone (FO-1), 2-chloro-3-(3-(morpholine-4-yl)-3-oxopropylamine)-1,4-naphthoquinone (FO-2 at concentrations of 10-3, 10-5, 10-7 M on the content of TBA-reactive substances (a byproduct of lipid peroxidation) and the activities of superoxide dismutase and catalase in loach embryos. It was established that 1,4-naphthoquinone amide derivatives and 2-chloro-3-hydroxy-1,4-naphthoquinone decreased the content of lipid peroxidation products in embryo cells in a dose-dependent manner. The investigated compounds cause an increase in superoxide dismutase and catalase activities compared with the control value. The results of the two-factor ANOVA test indicate that 2-chloro-3-hydroxy-1,4-naphthoquinone and 1,4-naphthoquinone amide derivatives (FO-1, FO-2) have predominant influence on the TBA-reactive substances content and superoxide dismutase activity. However, the time of loach embryos development has a more pronounced effect on catalase activity than the studied 1,4-naphthoquinone derivatives.
Intensity of peroxidation processes and activity of antioxidant enzymes in rat tissues at high chromium level in the diet
R. Ya. Iskra, V. G. Yanovych
Institute of Animal Biology, National Academy of Agrarian Sciences, Lviv, Ukraine;
e-mail: ruslana_iskra@inenbiol.com.ua
The data on the influence of chromium in different tissues of rats at its consumption with mixed fodder in the form of CrCl3×6H2O on the intensity of peroxidation processes and activity of antioxidant enzymes are presented. The degree of high chromium content in the studied tissues of rats at its addition to mixed fodder in the amount of 200 µg/kg during 30 days was established. Chromium content in the rat tissues decreased in the order: the spleen, heart, kidneys, lungs, brain, liver, skeletal muscle. In all tissues of rats fed with mixed fodder with chromium addition, except for skeletal muscles, content of lipid peroxidation products – hydroperoxide and TBARS-products decreased. The content of lipid peroxidation products decreased in the spleen, kidneys, liver and lungs. Also in all organs and tissues of rats the activity of glutathione peroxidase, glutathione reductase and catalase increased at the action of chromium. In the brain and kidneys the level of reduced glutathione increased. Superoxide dismutase activity was significantly higher not only in the heart and skeletal muscles of animals and is probably equal in the lungs and liver, and in other organs – the brain, kidneys and spleen in animals of the studied group the enzyme activity was lower as compared to animals of the control group. Obtained results demonstrate the regulatory influence of chromium on free radical process in the rat tissues.
Antioxidant defense system state in blood plasma and heart muscle of rats under the influence of histamine and sodium hypoclorite
O. I. Bishko, N. P. Harasym, D. I. Sanahurs’kyj
Ivan Franko National University of Lviv, Ukraine;
e-mail: oliabishko@gmail.com
There is a wide spectrum of antihistamine drugs in the pharmaceutical market, however all these chemical preparations cause side effects. Therefore, new alternative ways for histamine detoxication are to be found. For this aim in our experiment sodium hypochlorite was used because its solution possesses strong oxidizing properties. The influence of histamine and sodium hypochlorite on the antioxidant defence system state of blood plasma and cardiac muscle in rats has been researched. It was shown, that the investigated factors result in the disruption of the antioxidant system. It was found that histamine injection in concentration of 1 and 8 μg/kg in plasma leads to the increase of superoxide dismutase activity during all the experiment. When studying enzymes, that catalyze hydroperoxides and Н2О2 decomposition it was shown that under the influence of histamine in a dose 1 μg/kg, the glutathione peroxidase activity increased on the 1st day of the experiment. However, on the 7th day of the experiment the increase of both glutathione peroxidase and catalase activity was fixed. The deviation in superoxide dismutase function in rats plasma under the action of sodium hypochlorite has been established. The activity of enzymes that decompose Н2О2 and hydroperoxides were inhibited. Under the influence of histamine in the heart tissues we have stated the disturbance of superoxide dismutase work and increase of catalase activity and decrease of glutathione peroxidase activity. The influence of sodium hypochlorite on the myocardium of intact animals as well as joint influence of sodium hypochlorite and histamine result in the increase of superoxide dismutase and catalase activity and lead to the considerable decline of activity of glutathione peroxidase.
The activity of prooxidant-antioxidant system in loach embryos under the action of microwave radiation
M. M. Yaremchuk, M. V. Dyka, D. I. Sanagursky
Ivan Franko National University of Lviv,Ukraine;
e-mail: m.yaremchuk@i.ua
Electromagnetic radiation (EMR) affects biological organisms, primarily on the cellular level. However, the effects of EMR at low-intensity exposure on animals and state of metabolic systems are not fully defined yet. Thus, research of microwave radiation influence on the processes of lipid peroxidation and antioxidant protection system is important for understanding the mechanisms of EMR action on the cell, in particular, and organism development on the whole. The content of lipid peroxidation products – lipid hydroperoxides, thiobarbituric acid reactive substances and the activity of antioxidant enzymes – superoxide dismutase, glutathione peroxidase and catalase in loach embryos under the action of microwave radiation (GSM-900 MHz, SAR = 1.1 Vt/kg) lasting 1; 5; 10 and 20 min during early embryogenesis were studied. It has been found that content of lipid peroxidation products in germ cells undergoes significant changes under the action of low-intensity EMR. The effect of microwave radiation (1, 5, 10 min) leads to the increase of superoxide dismutase activity, nevertheless, 20 min exposure decreased this index to the level of control values as it is shown. It has been established that EMR at frequencies used for mobile communications reduce the activity of antioxidant protection system components, especially catalase and glutathione peroxidase. The growth of catalase activity at the 10-cell stage of blastomere division (P < 0.05) is an exception. The results of two-way analysis of variance attest that microwave radiation factor causes the large part of all observable modifications.
Influence of ω-3 polyunsaturated fatty acids on oxidative stress and cytochrome P450 2E1 expression in rat liver
O. V. Maksymchuk
Institute of Molecular Biology and Genetics,
National Academy of Sciences of Ukraine, Kyiv;
e-mail: prima@imbg.org.ua; o.maksymchuk@ukr.net
Polyunsaturated fatty acids (PUFAs), ω-3 ones in particular, form phospholipid layer of biological membranes, which provides normal functioning of membrane-associated complexes of enzymes and transmembrane transport. Free ω-3 PUFAs regulate the transcription of many genes, and thereby have an effect on the level of metabolic processes, particularly control of lipid and carbohydrate metabolism in the liver. Cytochrome P450 2E1 (1.14.14.1) causes the transformation of lipophilic exogenous and endogenous substances, as well as involvement in homeostasis, both at the cellular and systemic levels. The aim is to study changes in expression of cytochrome P450 2E1, and to assess the antioxidant system and the level of peroxidation processes in the liver of experimental animals under the chronic action of ω-3 PUFAs. During experiment more than two-fold increase in the content of cytochrome P450 2E1 was observed in the liver of rats which additionally received ω-3 PUFAs for 4 weeks in the standard daily diet. At the same time, such changes in the enzyme expression did not lead to an imbalance of pro- and antioxidant processes in the liver.
State of antioxidant system of rat thymocytes in experimental ulcerogenesis
V. A. Kovaleva, L. M. Gaida, A. E. Shevchenko, D. V. Shelest, L. I. Ostapchenko
Educational and Scientific Centre Institute of Biology,
Taras Shevchenko Kyiv National University, Ukraine;
e-mail: vikikov@univ.kiev.ua
Features of free radical processes and their impact on the implementation of immunocompetent cells of their functions under conditions of peptic ulcer are insufficiently studied today. Reduced activity of catalase 1.7 and 3.4 times and that of glutathione peroxidise ~ 2.0 times, accordingly, were observed in both models of gastric ulceration (stress ulcer and ethanol one). Enzymatic activity of superoxide dismutase decreased 1.5 times and activity of glutathione transferase increased 1.8 times in the stress model in contrast to the ethanol model of stomach ulcer. Obtained results indicate the exhaustion of antioxidant system in rats’ thymocytes under experimental ulcerogenesis. These data confirm complex negative effect of ulcer on the organism.