State of the antioxidant protection system of rat liver in ischemia and reperfusion
Purpose: determination of the state of the antioxidant protection system of the cytosolic fraction and suspension of rat liver mitochondria after experimental ischemia and reperfusion. Materials and methods: the study was conducted using white mature rats, divided into 3 groups: the control group (n...
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| Format: | Article |
| Language: | English |
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Peoples’ Friendship University of Russia (RUDN University)
2020-12-01
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| Series: | RUDN Journal of Medicine |
| Subjects: | |
| Online Access: | http://journals.rudn.ru/medicine/article/viewFile/23399/18075 |
| _version_ | 1818237225960210432 |
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| author | Konstantin Andreevich Popov Ilia Mikhaylovich Bykov Igor Yuryevich Tsymbalyuk Yana Evgenievna Denisova Anzhela Nikolaevna Stolyarova Erustam Adamovich Azimov Larisa Alekseevna Shurygina |
| author_facet | Konstantin Andreevich Popov Ilia Mikhaylovich Bykov Igor Yuryevich Tsymbalyuk Yana Evgenievna Denisova Anzhela Nikolaevna Stolyarova Erustam Adamovich Azimov Larisa Alekseevna Shurygina |
| author_sort | Konstantin Andreevich Popov |
| collection | DOAJ |
| description | Purpose: determination of the state of the antioxidant protection system of the cytosolic fraction and suspension of rat liver mitochondria after experimental ischemia and reperfusion. Materials and methods: the study was conducted using white mature rats, divided into 3 groups: the control group (n = 15); The 2nd group of animals (n = 15), from which the liver was taken after 15 minutes of liver ischemia; the 3rd group of rats (n = 15), from which the liver was taken after a 15-minute reperfusion period, followed by a 15-minute ischemic period. Mitochondrial suspension and cytosolic fraction were isolated from liver tissue. Results: the obtained research results showed the presence of certain pathobiochemical changes in the suspension of mitochondria and the cytosolic fraction after ischemia or reperfusion. In the mitochondrial suspension during the reperfusion period it was found an adaptive increase in the activity of glutathione peroxidase by 39% and glutathione reductase by 61%. In the cytosolic fraction, it was the most remarkable increase of the total antioxidant capacity by 38% already during ischemia and a progressive decrease in the level of reduced glutathione form by 26% in ischemic and 55% in reperfusion period. The change in the state of the antioxidant system occurred against the background of an increase in the number of products of oxidative modifications of biomolecules by 40% during ischemia and 2.2 times after reperfusion. Conclusion: The results indicate the need to develop not only a mitochondria-oriented correction of oxidative disorders, but also active support for the components of the cytosol, which provide the main accumulation of free radical damage products and their subsequent removal from the cell, which is essential for survival. |
| first_indexed | 2024-12-12T12:22:23Z |
| format | Article |
| id | doaj.art-14e615c6dd514693b55c9e325dbfbb0a |
| institution | Directory Open Access Journal |
| issn | 2313-0245 2313-0261 |
| language | English |
| last_indexed | 2024-12-12T12:22:23Z |
| publishDate | 2020-12-01 |
| publisher | Peoples’ Friendship University of Russia (RUDN University) |
| record_format | Article |
| series | RUDN Journal of Medicine |
| spelling | doaj.art-14e615c6dd514693b55c9e325dbfbb0a2022-12-22T00:24:38ZengPeoples’ Friendship University of Russia (RUDN University)RUDN Journal of Medicine2313-02452313-02612020-12-012419310410.22363/2313-0245-2020-24-1-93-10418750State of the antioxidant protection system of rat liver in ischemia and reperfusionKonstantin Andreevich Popov0Ilia Mikhaylovich Bykov1Igor Yuryevich Tsymbalyuk2Yana Evgenievna Denisova3Anzhela Nikolaevna Stolyarova4Erustam Adamovich Azimov5Larisa Alekseevna Shurygina6Kuban state medical universityKuban state medical universityKuban state medical universityKuban state medical universityKuban state medical universityKuban state medical universityKuban state medical universityPurpose: determination of the state of the antioxidant protection system of the cytosolic fraction and suspension of rat liver mitochondria after experimental ischemia and reperfusion. Materials and methods: the study was conducted using white mature rats, divided into 3 groups: the control group (n = 15); The 2nd group of animals (n = 15), from which the liver was taken after 15 minutes of liver ischemia; the 3rd group of rats (n = 15), from which the liver was taken after a 15-minute reperfusion period, followed by a 15-minute ischemic period. Mitochondrial suspension and cytosolic fraction were isolated from liver tissue. Results: the obtained research results showed the presence of certain pathobiochemical changes in the suspension of mitochondria and the cytosolic fraction after ischemia or reperfusion. In the mitochondrial suspension during the reperfusion period it was found an adaptive increase in the activity of glutathione peroxidase by 39% and glutathione reductase by 61%. In the cytosolic fraction, it was the most remarkable increase of the total antioxidant capacity by 38% already during ischemia and a progressive decrease in the level of reduced glutathione form by 26% in ischemic and 55% in reperfusion period. The change in the state of the antioxidant system occurred against the background of an increase in the number of products of oxidative modifications of biomolecules by 40% during ischemia and 2.2 times after reperfusion. Conclusion: The results indicate the need to develop not only a mitochondria-oriented correction of oxidative disorders, but also active support for the components of the cytosol, which provide the main accumulation of free radical damage products and their subsequent removal from the cell, which is essential for survival.http://journals.rudn.ru/medicine/article/viewFile/23399/18075liverischemiareperfusionantioxidative systemmitochondria |
| spellingShingle | Konstantin Andreevich Popov Ilia Mikhaylovich Bykov Igor Yuryevich Tsymbalyuk Yana Evgenievna Denisova Anzhela Nikolaevna Stolyarova Erustam Adamovich Azimov Larisa Alekseevna Shurygina State of the antioxidant protection system of rat liver in ischemia and reperfusion RUDN Journal of Medicine liver ischemia reperfusion antioxidative system mitochondria |
| title | State of the antioxidant protection system of rat liver in ischemia and reperfusion |
| title_full | State of the antioxidant protection system of rat liver in ischemia and reperfusion |
| title_fullStr | State of the antioxidant protection system of rat liver in ischemia and reperfusion |
| title_full_unstemmed | State of the antioxidant protection system of rat liver in ischemia and reperfusion |
| title_short | State of the antioxidant protection system of rat liver in ischemia and reperfusion |
| title_sort | state of the antioxidant protection system of rat liver in ischemia and reperfusion |
| topic | liver ischemia reperfusion antioxidative system mitochondria |
| url | http://journals.rudn.ru/medicine/article/viewFile/23399/18075 |
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