scholarly journals Dynamics of intensity of the protein oxidative modification processes and the state of the antioxidant protection system of chicken-broilers under the effect of BPS-44 and the dried preparations of Saccharomyces cerevisiae

2019 ◽  
Vol 21 (1) ◽  
pp. 48-54
Author(s):  
N. N. Romanovich ◽  
◽  
B. M. Kurtyak ◽  
M. S. Romanovich ◽  
O. I. Vishchur ◽  
...  
2020 ◽  
Vol 24 (1) ◽  
pp. 93-104
Author(s):  
Konstantin Andreevich Popov ◽  
Ilia Mikhaylovich Bykov ◽  
Igor Yuryevich Tsymbalyuk ◽  
Yana Evgenievna Denisova ◽  
Anzhela Nikolaevna Stolyarova ◽  
...  

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.


2019 ◽  
Vol 2 (3) ◽  
pp. 19-22
Author(s):  
L. Romanovych ◽  
B. Kurtyak ◽  
D. Mudrak

Chickens in the control group received a standard ration, the first experimental – ration with the addition of tocopherol acetate, the second experimental – ascorbic acid, and the third – a complex of these vitamins. On the basis of the conducted researches the influence of vitamin supplements on the indexes of oxidation intensity of lipid and protein structures was analyzed. The intensity of the processes of oxidative modification of proteins largely depends on the level of vitamins E and C in the ration of broiler chickens. Supplementation with vitamin C and with vitamin E resulted in an inhibitory influence on the content of OMP products, the level of which is largely regulated by the enzyme and non-enzymatic links of the antioxidant protection system. Searches have shown the stimulating influence of the addition of vitamins on the activity of antioxidant enzymes. In particular, SOD activity increased by 19 % on the 34th day, by 32 % on the 41st day, whereas glutathione peroxidase activity was 5.7 and 20.8 %, respectively, compared to the control chickens group. An increase in the activity of antioxidant enzymes occurred against the background of a decrease in the intensity of oxidation processes. At the same time, there was also an increase in the content of recovered glutathione in the blood of chickens of the second and third experimental groups at 34th and 41st days of age. Thereby, searches have shown that supplementing the ration with vitamins E and C with a positive influence on the organism's adaptive capacity and antioxidant potential, which is extremely important to ensure the metabolic homeostasis of chickens during critical periods of their cultivation.


2020 ◽  
Vol 48 (3) ◽  
pp. 32-37
Author(s):  
L. S. Babinets ◽  
I. M. Halabitska

Introduction. The main pharmacological effects of NSAIDs are anti-inflammatory, the onset and conduction of a pain signal, the aggregation of blood elements, neoangiogenesis, cell apoptosis, etc. — make them indispensable in the treatment of inflammatory and degenerative diseases of the joints and spine, in particular osteoarthritis. NSAIDs account for 25% of all medical complications, including bleeding rates (25–40%), which is a serious medical and important socio-economic problem. The risk of developing NSAIDs-gastropathy is determined both by severity of COX-2 inhibitory effect and non-prostaglandin systemic and local effects. Use of proton pump inhibitors, histamine blockers (mainly children and adolescents), and synthetic analogues of prostaglandins, as well as drugs of cytoprotective action, is pathogenetically justified in the treatment of NSAIDs-gastropathy. One of the newest and most economically available, most metabolically high-technological is the vitamin drug Doctovit. Aim: to study the effectiveness of Doctovit in the complex therapy of patients with NSAIDs-gastropathy on the background of chronic pancreatitis by analyzing the morphological parameters, indices of antioxidant protection system and endotoxicosis system. Materials and methods. 42 patients with NSAID-gastropathy on the background of chronic pancreatitis were examined. Patients, comparable by clinical, gender criteria, severity of NSAID-gastropathy and treatment received — were divided into two groups: I control group (20 patients), 10-day treatment regimen: PPI pantoprazole (Controlok, Nolpase, Pantasan, etc.) 40 mg×2; cancellation of NSAIDs; II main group (22 patients), 10-day treatment regimen: PPI pantoprazole (Controlok, Nolpase, Pantasan, etc.) 40 mg×2; cancellation of NSAIDs; Doctovit 2 tablets per day after meals for 2 months. Compulsory components of medical complexes were outpatient regimen and normotrophic nutrition. All patients with NSAID-gastropathy underwent standardized clinical laboratory examination. At the beginning of the study and two months after the start of treatment EGDS + biopsy from 5 places with histological examination was performed. The level of endotoxicosis was defined by the level of sorption capacity of erythrocytes, which was determined according to A. A. Togaibayev technique. The state of lipid peroxidation was evaluated by the level of malonic aldehyde, the state of antioxidant protection system — by the levels of superoxide dismutase, catalase, SH-groups. Results and discussion. Morphological examination of gastric EGD biopsy specimens before and after treatment in the comparison groups showed statistically significant efficacy of the proposed treatment complex with the inclusion of Doctovit in influencing the established pathological features of NSAID-gastropathy. There was a statistically significant improvement in endotoxicosis in both study groups after treatment, but in the II group the positive effect was statistically more significant. The proposed correction programs had a positive effect on the lipid peroxidation, but the correction program used in II group had a statistically significantly better effect. Conclusion. In the complex treatment of NSAID-gastropathy on the background of chronic pancreatitis, it is advisable to use the vitamin complex Doctovit 2 tablets per day after meals for 2 months, which has a positive effect on the condition of the gastric mucosa, indices of lipid peroxidation and endotoxicosis.  


2020 ◽  
Vol 11 (2) ◽  
pp. 237-242
Author(s):  
L. G. Slivinska ◽  
A. R. Shcherbatyy ◽  
B. O. Lukashchuk ◽  
B. V. Gutyj

A highly relevant problem of modern veterinary science is the study of features and mechanisms of combined action of the most common heavy metals – cadmium and plumbum and their influence on the body of humans and animals in the regions of Ukraine under technogenic pollution. The purpose of the work was to study the influence of heavy metals on the state of the antioxidant protection system of cows, in particular on the content of lipid peroxidation products (malonic dialdehyde, lipid hydroperoxides and diene conjugates), and activity of antioxidant enzymes (glutathione peroxidase and superoxide dismutase), depending on the distance to the heaps of mines in the coal basin. The study objects were cows of black-and-white breed at the age of 3–7 years. It was established that this parameter in the place with the highest concentration of diene conjugates in the blood of cows was by 25.8 % higher compared to the place of low concentration and 12.1 % higher compared to the place with medium concentration. In the place with the highest content of lipid hydroperoxides in the blood of cows the parameter was 23.7 % higher compared to the cows from the place with the low content. The concentration of lipid hydroperoxides in the blood of cows from the place with the medium content was 16.7% higher compared to the cows from the place with the low content. The parameter from the place with the lowest content of lipid hydroperoxides in the blood of cows was 12.1% lower compared to the place with the highest content. The level of malonic dialdehyde in the blood of cows from the technogenic pollution zone in the place with the largest amount was higher by 36.2; 34.0 and 18.8 % – compared to places with medium and low levels, respectively. The activity of superoxide dismutase in the blood of cows in the place with its highest activity was 0.284 ± 0.0099 % block. reac/g Hb, and in the place with the lowest activity – 0.23 ± 0.0051 % block. reac/g Hb. The activity of glutathione peroxidase in the blood of cows in farms of the technogenic pollution zone depended on the distance to the mine. These researches will further develop effective methods of treating cows under the influence of heavy metals, in particular regarding the antioxidant system.


2019 ◽  
Vol 4 (1) ◽  
pp. 31-35
Author(s):  
Maria A. Rashidova ◽  
Leonid F. Sholokhov ◽  
Marina A. Darenskaya ◽  
Lyubov I. Kolesnikova

Background.Chronic viral hepatitis is a complex global problem and is still far from being solved. Many researchers point out influence of viral hepatitis on the reproductive system of women.Aim.To identify features of the functional state of pituitary-thyroid units of neuroendocrinal regulation, and to evaluate lipid peroxidation – antioxidant protection with determination of the oxidative stress coefficient in perimenopausal women with chronic form of hepatitis.Materials and methods. Study included 44 women with chronic viral hepatitis and 28 healthy women of the same age. Immunoabsorbent, spectrophotometric, fluorometric and statistical methods were used.Results.In patients with chronic viral hepatitis, we detected an increase in thyroxine levels – by 29.6% (р < 0.001) and free triiodothyronine values – by 65.7% (р = 0.008) in comparison with the control group. In the group with chronic viral hepatitis, the TBA-reactive products level increased by 1.9 times (р = 0.006), and superoxide dismutase activity decreased by 1.3 times (р < 0.001), total antioxidant activity – by 1.7 times (р < 0.001) and α-tocopherol level – by 1.3 times (р = 0.005) in comparison with the control group.Conclusions. The obtained data demonstrate the features of the pituitary-thyroid system functioning and the lipid peroxidation – antioxidant protection system in patients with chronic hepatitis. The chronic form of hepatitis is characterized by metabolic disorders that require a more careful approach in diagnosis and management.


2021 ◽  
Vol 2 (344) ◽  
pp. 64-73
Author(s):  
B. Kerimzhanova ◽  
A. Jumagaziyeva ◽  
N. Аkhatullina ◽  
Zh. Iskakbayeva ◽  
E. Sakhipov

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