scholarly journals Integrated evaluation of oxidation-reduction processes in rat liver tissues on the background of a mechanical eye injury

2021 ◽  
Author(s):  
О. N. Pavlova ◽  
O. N. Gulenko ◽  
E. S. Korovina ◽  
V. V. Zaytsev
Keyword(s):  
Oxidative Stress ◽  
Rat Liver ◽  
Catalase Activity ◽  
Antioxidant Status ◽  
The Body ◽  
Male Rats ◽  
Mechanical Trauma ◽  
Sod Activity ◽  
Integral Assessment ◽  
Liver Tissues

As a result of mechanical trauma to the eye and damage to the blood-ophthalmic barrier, an inflammatory process occurs and, as a result, oxidative stress is a state of the body that develops against the background of an overproduction of free radicals, with a violation of the effectiveness of antioxidant protection. The aim of the study was to study the dynamics of oxidative stress coefficients for the integral assessment of the antioxidant status of rat liver tissues under oxidative stress induced by mechanical eye trauma. The study was carried out on outbred white sexually mature healthy male rats of six months of age, weighing 220–240 g in the amount of 150 pieces. For the integral assessment of oxidative homeostasis in rats, the coefficients of oxidative stress were used: a coefficient expressing the ratio of catalase activity to SOD activity; antioxidant-prooxidant index (API), which expresses the ratio of catalase activity to MDA concentration; the coefficient of the ratio of the concentration of MDA to the concentration of DC and the local antioxidant index (LAI), which is the ratio of the product of the activities of catalase and SOD to the concentration of MDA. The study found that the antioxidant status of rat liver tissue under oxidative stress caused by mechanical trauma of the eye is most effectively stabilized by standard therapy of mechanical trauma of the eye with the addition of quercetin in the form of injections. 

scholarly journals Study of changes in catalase activity in rat brain under mechanical influence on hemato-ophthalmic barrier

2020 ◽  
Vol 210 ◽  
pp. 06014
Author(s):  
Anatoly Devyatkin ◽  
Olga Pavlova ◽  
Olga Gulenko ◽  
Pavel Boriskin
Keyword(s):  
Oxidative Stress ◽  
Rat Brain ◽  
Brain Tissue ◽  
Catalase Activity ◽  
White Male ◽  
The Body ◽  
Male Rats ◽  
Mechanical Trauma ◽  
Barrier Materials ◽  
Mechanical Influence

Hemato-ophthalmic barrier protects nervous system tissues from adverse factors. Against the background of inflammatory process caused by mechanical trauma of the eye, large molecules are able to penetrate the eyeball. At present, the mechanism of restoring the homeostatic balance of the body under oxidative stress caused by mechanical trauma of the eye is poorly studied. The aim of the study was to study the dynamics of catalase activity in rat brain tissue under oxidative stress caused by mechanical influence on hemato-ophthalmic barrier. Materials and methods: the study was conducted on white male rats of six months of age in the amount of 150 pieces. The activity of catalase in brain tissue was studied before the experiment, as well as on the 1st, 3rd, 5th, 7th and 14th day of the experiment using the standard Korolyuk M.A. method. The obtained digital material was statistically processed by non-parametric statistical analysis. Conclusion: The activity of catalase in the rat brain under oxidative stress caused by mechanical action on the hemato-ophthalmic barrier is most effectively stabilized in the standard therapy of mechanical eye injury with the addition of quercetin in the form of injections.

scholarly journals Dynamics of glutathione reductase activity in rat liver tissues during cryodestruction of the right atrium

2021 ◽  
Vol 273 ◽  
pp. 02014
Author(s):  
Olga Pavlova ◽  
Olga Gulenko ◽  
Konstantin Krupin ◽  
Pavel Boriskin ◽  
Victor Leonov
Keyword(s):  
Oxidative Stress ◽  
Glutathione Reductase ◽  
Rat Liver ◽  
Right Atrium ◽  
Liver Tissue ◽  
Reductase Activity ◽  
The Body ◽  
Glutathione Reductase Activity ◽  
The Right ◽  
Liver Tissues

The metabolic processes of the human body are based on multiple redox reactions and oxidative stress occurs when homeostasis is imbalanced. Antioxidant system of the body is represented by such enzymes as catalase, glutathione reductase, superoxidismutase and glutathione peroxidase. Objective: to study the dynamics of glutathione reductase activity in rat liver tissues after cryodestruction of right atrial myocardium to initiate oxidative stress. Materials and methods: 420 male rats were used. The rats were divided into two groups - intact and experimental, 210 animals in each. To initiate oxidative stress, the experimental group rats underwent cryodestruction of the right atrium. The activity of glutathione reductase in the liver tissue was determined by accumulation of oxidized glutathione before the experiment, as well as on 1, 3, 5, 7 and 14 days of the experiment. Conclusions: oxidative stress arising after cryodestruction of the right atrium up to the 7th day of the experiment provokes a decrease in the glutathione reductase activity in the rat liver tissue, but the start of reparative processes helps to restore the disturbed redox equilibrium in the body and normalize the enzyme level.

Study of the dynamics of catalase activity in heart and muscle of rats by mechanical action on the barrier gematologichesky

2020 ◽  
pp. 106-113
Author(s):  
O. Pavlova ◽  
O. Gulenko ◽  
R. Karimovа ◽  
L. Gondareva ◽  
A. Devyatkin ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Muscle Tissue ◽  
Catalase Activity ◽  
Standard Therapy ◽  
Mechanical Action ◽  
The Body ◽  
Male Rats ◽  
Muscular Tissue ◽  
Eye Injury ◽  
Barrier Materials

The hematoophthalmic barrier is one of the mechanisms of resistance that serves to protect the body and prevents homeostasis disorder when the body is affected by factors that can disturb this balance. One of the complications of mechanical trauma of the eye and violation of the hematoophthalmic barrier is the appearance of oxidative stress on the background of the general inflammatory process in violation of cellular structures. Objective: to study the dynamics of catalase activity in the heart and muscle tissue of rats under oxidative stress caused by mechanical action on the hematoophthalmic barrier. Materials and methods. The study was carried out on white neonatal mature healthy male rats of six months of age, weighing 200–220 g and having 150 pieces. The activity of catalase in heart and muscle tissue was studied before the beginning of the experiment, as well as on the 1st, 3rd, 5th, 7th and 14th day of the experiment using the standard Korolyuk M.A. method. The dynamics of catalase activity was evaluated by different methods of treatment of mechanical eye trauma, including the use of quercetin antioxidant. The results of the study. It was found that in addition to the standard therapy of mechanical eye injury injection of quercetin, the activity of catalase in the heart and muscular tissue after falling on the background of induced oxidative stress increases to the values of physiological norm by 14 days, which indicates the effective elimination of oxidative stress. Conclusions. The activity of catalase in rat heart and muscle tissue under oxidative stress caused by mechanical influence on hematoophthalmic barrier is most effectively stabilized under standard therapy of mechanical eye injury with addition of quercetin in the form of injections.

scholarly journals Study of superoxiddismutase activity dynamics in rat skeletal muscle tissue under mechanical influence on hemato-ophthalmic barrier

2020 ◽  
Vol 210 ◽  
pp. 06013
Author(s):  
Anatoly Devyatkin ◽  
Olga Pavlova ◽  
Olga Gulenko ◽  
Pavel Boriskin ◽  
Olga Tulaeva
Keyword(s):  
Oxidative Stress ◽  
Skeletal Muscle ◽  
Muscle Tissue ◽  
Mechanical Action ◽  
The Body ◽  
Skeletal Muscle Tissue ◽  
Male Rats ◽  
Rat Skeletal Muscle ◽  
Sod Activity ◽  
Barrier Materials

Hemato-ophthalmic barrier is one of the mechanisms of body resistance. One of the complications of mechanical trauma of the eye and violation of the hemato-ophthalmic barrier is the emergence of oxidative stress on the background of the general inflammatory process. Normally, oxidative stress in the skeletal muscle tissue is not a damaging agent, but when intensified by other factors, it promotes pathological changes in the body. Objective: to study the dynamics of superoxiddismutase (SOD) activity in rat skeletal muscle tissue under oxidative stress caused by mechanical action on the hemato-ophthalmic barrier. Materials and methods: The study was carried out on pedigree matured male rats in the amount of 150 pieces. The activity of SOD in skeletal muscle tissue was studied before the experiment, as well as on the 1st, 3rd, 5th, 7th and 14th day of the experiment using the standard technique of V.S. Gurevich. The obtained digital material was subjected to statistical processing by means of non-parametric statistical analysis. Conclusion: SOD activity in rat skeletal muscle tissue under oxidative stress caused by mechanical action on hemato-ophthalmic barrier is most effectively stabilized in standard therapy of mechanical eye injury with the addition of quercetin in the form of injections.

scholarly journals Catalase activity as signal of antioxydant system affection under influence of limb ischemia-reperfusion

2021 ◽  
pp. 24-30
Author(s):  
Nataliya Volotovska
Keyword(s):  
Risk Factors ◽  
Blood Loss ◽  
Catalase Activity ◽  
Ischemia Reperfusion ◽  
Limb Ischemia ◽  
Mechanical Injury ◽  
Male Rats ◽  
Mechanical Trauma ◽  
Control Group ◽  
Ischemic Reperfusion

The use of hemostatic tourniquet is a proved means of primary care. However, systemic disorders, as well as ultrastructural, in the area of compression can significantly worsen the condition of the injured organism. The aim. Estimation of catalase level in rats’ liver on the background of modifications of ischemic-reperfusion syndrome to know the severest pathogenic combination for organism. Materials and methods. 260 white adult male rats were divided into 5 groups: control (KG), EG1 – simulation of isolated ischemia-reperfusion syndrome (IRS) of the limb, EG2 – simulation of isolated volumetric blood loss, EG3 – combination of IRS of the limb with blood loss, EG4 – simulation of isolated mechanical injury of the thigh, EG5 – combination of IRS of the limb and mechanical injury. The variability of catalase level in liver was analyzed. Results. It was found that each of the experimental interventions has led to changes of catalase activity in the liver. The most expressed pathological expressions were observed on the 3rd after interventions, when the studied index in EG3 was lower than in EG1 and EG2 in 6,2 times and by 33,1 %. On the 7th day catalase activity in EG3 was in 9,4 times and by 44,5 % times lower than in EG1 and in EG2 data concordantly. The combination of limb ischemia-reperfusion with blood loss in EG3 led to exhausting of liver antioxydant enzyme catalase in the most critical posttraumatic period (day 3). The same, but less significant effect was registered in the group of combination of mechanical trauma with ischemia-reperfusion in EG5. This proved the role of the tourniquet as a factor that complicated the course of traumatic disease due to ischemic reperfusion. Conclusions. In this experiment, founded risk factors of combination of ischemia-reperfusion with heavy blood loss emphasized the importance and particular attention on such widespread method of bleeding tratment, as the imposition of a tourniquet, as in our experiment it triggered risk factors of ischemia-reperfusion. It was shown katalase activity depression respectively to the periods of increasing of lipid peroxydation. There was peculiarity, that on the base of isolated IRS catalase activity was increased in 2,5 times comparely to control group, whereas the hardest depression of it was found on the background of IRS, combined with blood loss – catalase activity was lower, comparely to KG – in 2,5 times. The importance of understanding the suppression of hepatocytes’ antyoxydants is great, as it might help in prevention the development of liver failure or hepatorenal syndrome on the background of limb ischemia-reperfusion.

Zataria multiflora extract and carvacrol affect cardiotoxicity induced by Adriamycin in rat

2018 ◽  
Vol 30 (1) ◽  
pp. 73-79 ◽  
Author(s):  
Abolfazl Khajavi Rad ◽  
Reza Mohebbati
Keyword(s):  
Oxidative Stress ◽  
Cardiac Tissue ◽  
Male Rats ◽  
Control Group ◽  
Sod Activity ◽  
Serum Glutamic Oxaloacetic Transaminase ◽  
Zataria Multiflora ◽  
Total Thiol ◽  
Group 2 ◽  
Stress Damage

Abstract Background Because of the antioxidant effects of Zataria multiflora (ZM) and carvacrol (CAR) and also the role of oxidative stress in the induction of cardiotoxicity induced by Adriamycin (ADR), the aim of this study was to investigate the improvement effects of ZM extract and CAR on cardiotoxicity induced by ADR in rats. Methods Twenty-eight male rats were randomly assigned to four groups including (1) the control group; (2) the ADR group, which received ADR intravenously at the beginning of the study and the (3) ZM+ADR and (4) CAR+ADR groups, which received ZM and CAR by gavage for 28 consecutive days and ADR as single dose. Blood samples were collected on days 0 and 28 to determine serum glutamic oxaloacetic transaminase (SGOT), serum glutamic pyruvic transaminase (SGPT) and lactate dehydrogenase (LDH). Also, cardiac tissue was removed for redox marker evaluation. Results In the ADR group, malondialdehyde (MDA) significantly increased and superoxide dismutase (SOD) activity and total thiol contents significantly reduced, as compared with the control group, while CAR administration significantly improved this condition. Treatment with ZM significantly increased the SOD activity and total thiol content, as compared with the ADR group. The level of LDH significantly increased on day 28 in the ADR group compared to the control group, and administration of ZM and CAR significantly decreased it. The SGPT and SGOT levels in the ADR group significantly increased, and CAR administration significantly reduced them. Conclusion The results indicate that the administration of ZM hydroalcoholic extracts and its active ingredient, CAR, could reduce the oxidative stress damage through promotion of the cardiac and systemic antioxidant system. Also, CAR administration demonstrated better improvement in cardiotoxicity with ADR in rats.

Oxidative stress in Vitiligo patients and administration of Munzij and Mushil therapy, a poly herbal Unani formulation – hospital-based study

2020 ◽  
Vol 17 (3) ◽  
Author(s):  
Towseef Amin Rafeeqi ◽  
Farhat Jabeen ◽  
M A Waheed ◽  
Gulam Mohammed Husain ◽  
Alokananda Chakraborthy
Keyword(s):  
Oxidative Stress ◽  
Healthy Subjects ◽  
Skin Disorder ◽  
Antioxidant Status ◽  
The Body ◽  
Oxygen Species ◽  
Statistical Significant Difference ◽  
Significant Difference ◽  
Gpx Activity

AbstractBackgroundVitiligo, a skin disorder is viewed as a multifactorial process with major role of reactive oxygen species in concert to destroy or incapacitate melanocytes. In Unani system of medicine the treatment of Bars (Vitiligo) starts with removal of harmful materials from the body with Munzij and Mushil (MM), a poly herbal Unani formulation.MethodsHerein, oxidative stress related parameters as MDA, SOD, GPx and CAT have been estimated in the 21 clinically diagnosed Vitiligo in-patients and subsequently these parameters were evaluated during and after administration of MM therapy and compared with 21 healthy subjects.ResultsThere was significant difference in the parameters viz., SOD (p<0.001) and CAT (p<0.005) activity at the baseline with no statistical significant difference in MDA and GPx activity among Vitiligo subjects and controls. After MM therapy there was no statistical significant difference among the values of these parameters in Vitiligo subjects.ConclusionsThe results suggest that there is imbalance in the oxidant-antioxidant status of Vitiligo subjects and the MM therapy is not found to significantly change the levels of oxidative stress related parameters.

Radioprotective effect of Curcuma longa extract on γ-irradiation-induced oxidative stress in rats

2012 ◽  
Vol 90 (4) ◽  
pp. 415-423 ◽  
Author(s):  
Ahmed S. Nada ◽  
Asrar M. Hawas ◽  
Nour El-Din Amin ◽  
Magdy M. Elnashar ◽  
Zakaria Y. Abd Elmageed
Keyword(s):  
Oxidative Stress ◽  
Aqueous Extract ◽  
Antioxidant Status ◽  
Curcuma Longa ◽  
Radioprotective Effect ◽  
Male Rats ◽  
Sublethal Dose ◽  
Γ Irradiation ◽  
Protein Levels ◽  
Radiation Induced

This study was conducted to evaluate the modulatory effect of aqueous extract of Curcuma longa (L.) against γ-irradiation (GR), which induces biochemical disorders in male rats. The sublethal dose of GR was determined in primary hepatocytes. Also, the effect of C. longa extract was examined for its activity against GR. In rats, C. longa extract was administered daily (200 mg/kg body mass) for 21 days before, and 7 days after GR exposure (6.5 Gy). The lipid profile and antioxidant status, as well as levels of transaminases, interleukin-6 (IL-6), and tumour necrosis factor α (TNFα) were assessed. The results showed that in hepatocytes, the aqueous extract exhibited radioprotective activity against exposure to GR. Exposure of untreated rats to GR resulted in transaminase disorders, lipid abnormalities, elevation of lipid peroxidation, trace element alterations, release of IL-6 and TNF, and decrease in glutathione and protein level of superoxide dismutase-1 (SOD-1) and peroxiredoxin-1 (PRDX-1). However, treatment of rats with this extract before and after GR exposure improved antioxidant status and minimized the radiation-induced increase in inflammatory cytokines. Changes occurred in the tissue levels of trace elements, and the protein levels of SOD-1 and PRDX-1 were also modulated by C. longa extract. Overall, C. longa exerted a beneficial radioprotective effect against radiation-induced oxidative stress in male rats by alleviating pathological disorders and modulating antioxidant enzymes.

scholarly journals Anti-Inflammatory and Antioxidative Effects of Sumatriptan Against Doxorubicin-Induced Cardiotoxicity in Rat

2021 ◽  
Author(s):  
Mohammad Sheibani ◽  
Hedyeh Faghir-Ghanesefat ◽  
Yaser Azizi ◽  
Tahmineh Mokhtari ◽  
Hasan Yousefi‐Manesh ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Body Weight ◽  
Mortality Rate ◽  
Cardiac Tissue ◽  
The Body ◽  
Male Rats ◽  
Protective Effects ◽  
Cardiac Damage ◽  
Necrosis Factor Alpha ◽  
Antioxidative Effects

The clinical use of doxorubicin as a potent chemotherapeutic agent is limited due to its dose-dependent cardiotoxicity. Oxidative stress and inflammatory pathways have a pivotal role in doxorubicin-induced cardiotoxicity. Sumatriptan, a 5-hydroxytryptamine (5-HT)1B/1D agonist that is mainly used to relieve migraine pain, has suggested exerting protective effects in numerous pathological conditions through antiinflammatory properties. The aim of the present study was to investigate the effects of sumatriptan on doxorubicin-induced cardiotoxicity and the contribution of anti-inflammation and antioxidative responses. Cardiotoxicity was induced by the administration of doxorubicin three times a week (2.5 mg/kg i.p) for two consecutive weeks on male rats. The animals were divided into four groups, including Control, Sumatriptan (0.1 mg/kg) received group, doxorubicin received group, and Doxorubicin+Sumatriptan (0.1 mg/kg) received group. Sumatriptan was administered 30 min before every injection of doxorubicin. On the last day of the second week, the body weight, mortality rate, electrocardiogram (ECG) and histopathological changes, cardiac inotropic study, and biochemical factors were evaluated. The loss of body weight, mortality rate, ECG parameters, reduction of papillary muscle contractility force as well as histopathological scores following administration of doxorubicin indicated severe cardiac damage. However, treatment with sumatriptan inhibited the functional and structural impairment induced by doxorubicin. In addition, sumatriptan could significantly reduce cardiac tissue levels of malondialdehyde (MDA) and tumor necrosis factor-alpha (TNF-α), which were increased in the doxorubicin-treated rats. This study illustrated the protective effects of sumatriptan on decreasing doxorubicin-induced cardiac toxicity and mortality rate in part through inhibition of inflammatory and oxidative stress pathways.

scholarly journals Attenuation of Oxidative Stress-Associated Hematological Alterations and Hepatic Injury Induced by D-Dalactose or γ-Irradiation Using β-Hydroxybutyrate in Male Rats

2021 ◽  
Author(s):  
Mahmoud El Sayed Habieb ◽  
Marwa Abd El Hameed Mohamed ◽  
Doaa Mohamed ElGamal ◽  
Asrar Mohamed Hawas ◽  
Tarek Mohamed Mohamed
Keyword(s):  
Oxidative Stress ◽  
Hepatic Injury ◽  
Complete Blood Count ◽  
G6pd Activity ◽  
Male Rats ◽  
Protective Agent ◽  
Γ Irradiation ◽  
Sod Activity ◽  
Irradiation Group ◽  
Hematological Alterations

Abstract This work aims to investigate the possible inhibitory action of β-hydroxybutyrate (βOHB) against hematological alterations and hepatic injury associated with oxidative stress caused by D-galactose or γ-irradiation in rats. Six groups of male rats were used as the control, irradiated group (5 Gy), D-galactose (150 mg/kg b.wt), β-hydroxybutyrate (72.8 mg/kg b.wt), γ-irradiation plus βOHB, and D-galactose plus βOHB. Complete blood count and glucose-6-phosphate-dehydrogenase (G6PD) activity were determined in whole-blood samples. In addition, the hepatic malondialdehyde (MDA), nitric oxide (NO), and glutathione (GSH) levels and the superoxide dismutase (SOD) activity were evaluated. Moreover, certain elements were measured in liver tissue (iron (Fe), copper (Cu), and zinc (Zn)). The G6PD activity significantly diminished post exposure to D-galactose or γ-irradiation. In the βOHB, D-galactose, or γ-irradiation groups, liver MDA levels and SOD activity were significantly increased. Meanwhile, NO and GSH levels were significantly increased relative to normal control levels in the γ-irradiation group. The findings showed that βOHB alleviated hematological alterations, enhanced the altered biochemical indices, and modulated the change in Cu, Fe, and Zn elements in D-galactose or γ-irradiation group. These results highlight the role of βOHB as a powerful protective agent against hematological alterations and liver impairment by reducing G6PD-mediated oxidative stress and controlling the measured elements.

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