scholarly journals The influence of macular hole surgical treatment on biochemical tear fluid and blood serum indices

2013 ◽  
Vol 6 (4) ◽  
pp. 28-33
Author(s):  
Aleksey Vladislavovich Malyshev ◽  
Z Zh Al-Rashid
Keyword(s):  
Free Radical ◽  
Surgical Treatment ◽  
Blood Serum ◽  
Macular Hole ◽  
Visual Function ◽  
Biochemical Parameters ◽  
Free Radical Oxidation ◽  
Radical Oxidation ◽  
Macular Holes ◽  
Cataract Development

The present paper describes the changes of free radical oxidation (FRO) in patients with macular holes (MH) during vitrectomy. Material and methods. We examined 56 patients who underwent surgical treatment of MH. Results. We observed positive dynamics of FRO indices after surgery - a recovery of biochemical parameters in the late postop period. Among complications, a cataract development in patients who did not receive antioxidant therapy was observed. Conclusions. Vitrectomy improves visual function and FRO processes.

Gender differences in biochemical measurement reflecting the state of free-radical oxidation and antioxidant protection among workers in metallurgical production

2019 ◽  
Vol 1 (10) ◽  
pp. 877-881
Author(s):  
I. A. Umnyagina ◽  
L. A. Strakhova ◽  
T. V. Blinova
Keyword(s):  
Oxidative Stress ◽  
Gender Differences ◽  
Free Radical ◽  
Biochemical Parameters ◽  
Free Radical Oxidation ◽  
The Body ◽  
Antioxidant Protection ◽  
Radical Oxidation ◽  
Metallurgical Production ◽  
Production Factors

Introduction. To date, age and sex differences have been established for many biochemical parameters. Gender differences in indicators for systems such as antioxidant, thiol-disulfide, oxidative stress and inflammation systems are absent or under study.The aim of the study was to identify gender differences in biochemical parameters reflecting the functioning of antioxidant systems of the body and free radical oxidation in workers of metallurgical production, in contact with harmful production factors.Materials and methods. The blood of men and women working at the metallurgical enterprise of the Nizhny Novgorod region (n=80) under the influence of a complex of physical and chemical production factors was studied. Total oxidative stress, total antioxidant capacity of serum, glutathione levels were studied by photometric biochemical methods. Levels of C-reactive protein and 8-hydroxy–2-deoxyguanosine were studied by ELISA.Results. The average amount of peroxides in the serum of women exceeded 1.6 times this figure in men. In the group of men, the content of 8-Ondg was higher by 26% (p=0.012), the level of GS-by 12% (p=0.019), the activity of SOD — by 1.5–2 times (p=0.0001), the level of CRP — by 2 times (p=0.008) compared to similar indicators in women.Conclusions. Studies of gender differences in workers under the influence of harmful production factors will allow more effective approach to the etiology, treatment and prognosis of production-related diseases. Indicators of oxidative stress and antioxidant protection can be indicators of the health of workers under the influence of harmful industrial factors and be important in the prevention of diseases associated with oxidative stress.

scholarly journals Аnalysis of dynamics of clinical changes in cicatricially-changed tissues after surgical treatment of branchiogenic cysts in chronological aspect

2018 ◽  
Vol 85 (6) ◽  
pp. 33-35
Author(s):  
S. M. Hryhorov ◽  
L. R. Krynychko ◽  
S. O. Stavytskyi ◽  
I. V. Boiko ◽  
V. P. Trufanova
Keyword(s):  
Free Radical ◽  
Surgical Treatment ◽  
Classical Method ◽  
Free Radical Oxidation ◽  
Fibrin Clot ◽  
Treatment Results ◽  
Radical Oxidation ◽  
Postoperative Wound ◽  
Postoperative Prophylaxis ◽  
Clinical Changes

Objective. Studying of processes of the cicatrices development after surgical treatment of the neck cysts of embryonal origin in chronological aspect. Маterials and methods. Experience of surgical treatment of 60 patients, suffering branchiogenic cysts, was analyzed. Retrospective analysis of the treatment results, including those performed in accordance to own elaborated procedures, was conducted. Results. Clinical changes in cicatricially-changed tissues  depends upon the kind of intra- and postoperative prophylaxis of the cutaneous pathological cicatrices in surgical treatment of the neck cysts of embryological origin. Intraoperative application of the fibrin clot, enhanced by thrombocytes (PRF - clot), аnd postoperatively - of biocerrulin preparation, promotes a mostly expressed lowering  of the course intensity for the free-radical oxidation in cicatricially-changed tissues of postoperative wound and prognosis for the pathological cutaneous cicatrices development, comparing with solely application of PRF-clot, аnd with operative intervention in accordance to classical method as well.   Conclusion. Application of PRF-clot and biocerullin preparation improves significantly the  healing processes in postoperative wound after surgical treatment of the neck cysts of embryonal origin, and this lead to lowering of possibility for development of pathological cutaneous cicatrices.

scholarly journals NITRIC OXIDE AND ALLYL ALCOHOL INDUCED HEPATOTOXICITY

2014 ◽  
Vol 1 (1) ◽  
Author(s):  
M. M. Korda
Keyword(s):  
Nitric Oxide ◽  
Free Radical ◽  
Blood Serum ◽  
Allyl Alcohol ◽  
Calcium Ionophore ◽  
Free Radical Oxidation ◽  
No Synthase ◽  
Nitrate Content ◽  
Radical Oxidation ◽  
Nos Inhibitors

<p><strong>Background.</strong> Nitric oxide (NO) is an important mediator of hepatotoxicity. NO in liver can be derived from two sources: (1) constitutive NO synthase (eNOS) in endothelial cells, and (2) inducible NO synthase (iNOS) in hepatocytes and Kupffer cells.<br /><strong>Objectives.</strong> The present study was aimed to examine the effect of nonselective NOS inhibitor (L-NAME) and selective iNOS inhibitor (1400W) on the development of allyl alcohol (AA) induced hepatitis in rats.<br /><strong>Methods.</strong> Male Wistar rats were treated with intraperitoneal injection of saline or AA and L-NAME or 1400W. NO in liver was measured by electrochemical method after eNOS stimulation by calcium ionophore. Total NOS activity and nitrite/nitrate content were measured in liver and blood serum. The activity of free radical oxidation in liver was measured by chemiluminescent method. Alanine aminotransferase (ALT) and aspartate aminotransferase (AST) activities were assayed in blood serum<br /><strong>Results.</strong> AA increased the activity of free radical processes in liver and markers of cytolysis in serum, as well as decreased eNOS and increased iNOS activities. L-NAME considerably inhibited eNOS and augmented the necrosogenic properties of AA, whereas 1400W partially prevented liver damage.<br /><strong>Conclusion.</strong> It has been concluded that in AA intoxication NO produced from eNOS is beneficial to the liver, but NO derived from the upregulated iNOS has deleterious effect.</p><p><strong>KEY WORDS:</strong> nitric oxide, toxic hepatitis, NOS inhibitors.<br /><br /></p>

scholarly journals Features of free radical lipid peroxidation and serum proteins at dental implants and peri-implantitis

2015 ◽  
Vol 96 (5) ◽  
pp. 756-759 ◽  
Author(s):  
D V Plyukhin ◽  
V E Tseylikman ◽  
O B Tseylikman ◽  
A I Sinitskiy
Keyword(s):  
Lipid Peroxidation ◽  
Free Radical ◽  
Blood Serum ◽  
Dental Implants ◽  
Schiff Bases ◽  
Free Radical Oxidation ◽  
Protein Carbonylation ◽  
Radical Oxidation ◽  
Lipid Peroxidation Products ◽  
Dental Implantation

Aim. Determine the most informative indicators of free radical peroxidation in blood plasma for predicting the complications of dental implantation. Methods. The study included 84 patients of both with dental implants, including 31 patients without any complications and 53 patients with peri-implantitis. The levels of lipid peroxidation products and protein carbonylation were measured in peripheral blood. Results. Moderate intensification of lipid peroxidation and protein carbonylation was discovered in blood serum of patients with dental implants. Increased free radical oxidation in the blood was not limited to lipid peroxidation and resulted in increased serum levels of carbonylated proteins. Facilitation of oxidative degradation of proteins in the blood was associated with decreased resistance to «carbonyl stress», manifested as increased level of Fe+2/H2O2-induced carbonylation. Development of peri-implantitis resulted in a greater enhancement of free radical oxidation of blood. Isopropanol-soluble and heptane-soluble Schiff bases level was increased in blood serum as well. Similar to patients with dental implants, increased levels of carbonylated proteins was observed in blood serum at peri-implantitis. However, free radical oxidation was more intense in patients with peri-implantitis compared to patients with dental implants. Indeed, the level of heptane-soluble Schiff bases at the group with peri-implantitis was 2 times higher as compared to dental implants group, and the level of isopropanol-soluble lipid peroxidation products in inflammatory complications after implantation has reached fourfold increase compared with patients who underwent operation without complications. Conclusion. Investigated indicators of free radical oxidation may be used as markers of peri-implantitis. Among them, the most informative indicators are Schiff bases and metal-catalyzed protein oxidation.

scholarly journals Innovative approach to evaluating the correlation between the distribution of the concentration of enzymes in the blood serum and heart tissues of rats

2019 ◽  
Vol 135 ◽  
pp. 01097
Author(s):  
Pavel Boriskin ◽  
Olga Gulenko ◽  
Anatoliy Deviatkin ◽  
Victor Leonov ◽  
Olga Pavlova
Keyword(s):  
Lipid Peroxidation ◽  
Free Radical ◽  
Blood Serum ◽  
Concentration Distribution ◽  
Free Radical Oxidation ◽  
Correlation Coefficients ◽  
Active Oxygen ◽  
Cellular Structures ◽  
Weak Correlation ◽  
Radical Oxidation

Cardiovascular diseases (CVDs) have been the leading cause of death worldwide for many years. In recent years, new CVD markers have been sought that can improve the diagnosis and treatment of this broad and predictably unfavorable group of diseases. The efforts of many researchers are aimed at identifying changes in the level of enzymes in the lipid peroxidation system as possible mechanisms underlying the development of CVDs. The imbalance between the intensification of free-radical oxidation caused by active oxygen forms and the activity of the body’s protective antioxidant system leads to serious disturbances: disorganization of cellular structures, changes in their functional activity. The article presents the study of the interrelations between the concentration distribution of POL-AO enzymes in blood serum and heart tissues of white non-pedigree rats. The correlation coefficients of Spearman, the gamma of correlation and Kendel Tau revealed a reliable presence of weak correlation between the concentration of glutathione peroxidase in blood serum and heart tissues (Spearman R = 0.18 at p < 0.029408, Gamma = 0.14 at p < 0.018701; Kendall Tau = 0.13 at p < 0.018701).

scholarly journals The antioxidant status at patients with a thyreotoxicosis syndrome at the combined therapy with epifamin

2010 ◽  
Vol 56 (3) ◽  
pp. 397-403 ◽  
Author(s):  
S.S. Popov ◽  
A.N. Pashkov ◽  
V.I. Zoloedov ◽  
T.N. Popova ◽  
T.I. Rakhmanova
Keyword(s):  
Free Radical ◽  
Blood Serum ◽  
Catalase Activity ◽  
Combined Therapy ◽  
Free Radical Oxidation ◽  
Traditional Treatment ◽  
Group 13 ◽  
Radical Oxidation ◽  
Free Radical Processes ◽  
Radical Processes

The work purpose was research of degree of free-radical processes intensity and catalase activity in blood serum of patients with a thyreotoxicosis syndrome at traditional treatment and the combined therapy with epifamin. Patients (n=25) have been divided into 2 groups: the first group of patients - 12 persons who are on traditional treatment (antithyreoid drugs, β-adrenoblockers); the second group - 13 persons, are padding to basic therapy received epifamin on 1 tablet (10 mg) 3 times a day 10-15 minutes prior to meal within 7 days. Patients with thyreotoxicosis syndrome had an intensification of free-radical oxidation that was traced at measurement of biochemiluminescence parameters in blood serum. At the combined therapy with epifamin less expressed intensity of free-radical processes, and also increasing of the general antioxidant activity of an organism that did not descend at traditional treatment was observed. At carrying out of standard therapy of thyreotoxicosis syndrome, including application of antithyreoid drugs and β-adrenoblockers, catalase activity decreased, that unfavorable affected antioxidant potential of an organism. At the combined therapy with epifamin level of catalase activity, on the contrary, increased, that could influence positively on antioxidant protection of an organism.

Changes in free-radical oxidation in isolated femoral fracture during the systemic ozone therapy

2021 ◽  
pp. 79-85
Author(s):  
К.С. Абрамов ◽  
Е.В. Давыдова ◽  
М.В. Осиков ◽  
О.И. Огнева ◽  
А.И. Синицкий
Keyword(s):  
Oxidative Stress ◽  
Free Radical ◽  
Surgical Treatment ◽  
Femoral Fracture ◽  
Plasma Lipid ◽  
Free Radical Oxidation ◽  
Lipid Extract ◽  
Ozone Therapy ◽  
Radical Oxidation ◽  
End Products

Введение. Изолированные переломы бедренной кости (ИПБК) составляют более 10% от числа всех дорожных травм. Реакция организма в ответ на травму сопровождается нарушением гомеостаза, активацией процессов свободно-радикального окисления. Одним из перспективных направлений коррекции метаболических нарушений при хирургической патологии является озонотерапия. Цель исследования - оценка в динамике показателей свободно-радикального окисления в плазме крови у пациентов с изолированным переломом бедренной кости в условиях применения системной озонотерапии. Методика. Исследование выполнено на 36 пациентах с ИПБК и 20 условно здоровых лицах. Содержание изопропанол- и гептан-растворимых первичных, вторичных и конечных продуктов перекисного окисления липидов (ПОЛ) в плазме оценивали на 5-7-е сут после травмы до начала хирургического лечения, а также на 18-е сут после травмы, хирургического лечения и стандартного курса терапии, в том числе дополненного курсом малой аутогемотерапии (МАГТ), - 7-9 инъекций с озонированием крови (концентрация озона 20 мг/л). Результаты. Ранний посттравматический период у пациентов с ИПБК до оперативного лечения сопровождается накоплением первичных (диеновые конъюгаты), вторичных (ацилгидроперекиси, кетодиены и сопряженные триены) и конечных (основания Шиффа) продуктов ПОЛ в гептановой фазе липидного экстракта плазмы, а также вторичных и конечных продуктов ПОЛ в изопропанольной фазе липидного экстракта плазмы. У пациентов с ИПБК после оперативного лечения на фоне стандартной консервативной терапии сохраняется высокий уровень продуктов ПОЛ в гептановой и изопропанольной фазах липидного экстракта плазмы, что свидетельствует об эскалации окислительного стресса. Применение процедуры МАГТ с озонированием крови приводит к снижению и полному восстановлению уровня продуктов ПОЛ в изопропанольной фазе, снижению и частичному восстановлению продуктов ПОЛ в гептановой фазе липидного экстракта плазмы. Заключение. Применение МАГТ с озонированием крови оптимизирует состояние про- и антиоксидантных систем крови и ограничевает эскалацию окислительного стресса. Introduction. Isolated femoral fractures (IFF) account for more than 10% of all road injuries. The body responds to trauma with homeostatic disorders and activation of free radical oxidation. The ozone therapy is one of promising directions for correction of metabolic disorders in surgical pathology due to the pleiotropic effects of reactive oxygen species. The aim of the study was to evaluate changes in indexes of free radical oxidation in plasma of patients with isolated femoral fracture during the systemic ozone therapy. Methods. The study included 36 patients with IFF and 20 healthy individuals. Plasma concentrations of isopropanol and heptane-soluble primary, secondary, and end products of lipid peroxidation (LPO) were measured at 5-7 days after the injury, prior to the surgical treatment, and at 18 days after the injury following the surgical treatment and a standard therapy, including a course of minor autohemotherapy (7-9 injections of ozonated blood with ozone concentration of 20 mg/l). Results. The early post-traumatic period preceding the surgical treatment was associated with accumulation of LPO primary (conjugated dienes), secondary (ketodienes, and conjugated trienes) and end (Schiff bases) products in the heptane phase of plasma lipid extract, as well as LPO secondary and end products in the isopropanol phase of plasma lipid extract. In patients with IFF after the surgical treatment in combination with a standard, conservative therapy, high levels of LPO products remained in the heptane and isopropanol phases of plasma lipid extract, which indicated escalation of oxidative stress. The use of minor autohemotherapy with blood ozonation resulted in a decrease and complete restoration of the level of LPO products in the isopropanol phase and a decrease and partial return to the normal level of LPO products in the heptane phase of plasma lipid extract. Conclusions. The use of minor autohemotherapy with blood ozonation improved the condition of pro- and antioxidant blood systems and restricted the escalation of oxidative stress.

scholarly journals The activity of glutathione antioxidant system at melaksen and valdoxan action under experimental hyperthyroidism in rats

2013 ◽  
Vol 59 (5) ◽  
pp. 541-549
Author(s):  
M.V. Gorbenko ◽  
T.N. Popova ◽  
K.K. Shulgin ◽  
S.S. Popov
Keyword(s):  
Free Radical ◽  
Blood Serum ◽  
Antioxidant System ◽  
Glutathione Transferase ◽  
Free Radical Oxidation ◽  
Melatonin Level ◽  
Diene Conjugates ◽  
Radical Oxidation ◽  
Glutathione Antioxidant System ◽  
Experimental Hyperthyroidism

Investigation of glutathione antioxidant system activity and diene conjugates content in rats liver and blood serum at the influence of melaksen and valdoxan under experimental hyperthyroidism (EG) has been revealed. It has been established that the activities of glutathione reductase (GR), glutathione peroxidase (GP) and glutathione transferase (GT), growing at pathological conditions, change to the side of control value at these substunces introduction. Reduced glutathione content (GSH) at melaxen and valdoxan action increased compared with values under the pathology, that, obviously, could be associated with a reduction of its spending on the detoxication of free radical oxidation (FRO) toxic products. Diene conjugates level in rats liver and blood serum, increasing at experimental hyperthyroidism conditions, under introduction of melatonin level correcting drugs, also approached to the control meaning. Results of the study indicate on positive effect of melaxen and valdoxan on free radical homeostasis, that appears to be accompanied by decrease of load on the glutathione antioxidant system in comparison with the pathology.

State of the enzyme link of antioxidant protection in boys with hypoandrogenism

2020 ◽  
Vol 40 (4) ◽  
pp. 32-36
Author(s):  
L. K. Parkhomenko ◽  
◽  
L. A. Strashok ◽  
S. I. Turchina ◽  
G. V. Kosovtsova ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Superoxide Dismutase ◽  
Free Radical ◽  
Glutathione Peroxidase ◽  
Free Radical Oxidation ◽  
Conjugated Dienes ◽  
Delayed Puberty ◽  
Control Group ◽  
Antioxidant Protection ◽  
Radical Oxidation

Recently, interest in the problem of free radical oxidation in biological membranes, which is directly related to both the normal functioning of cells and the occurrence, course and outcome of many pathological conditions, has increased again in clinical medicine. The aim was to determine the role and impact of antioxidant defense in boys with hypoandrogenism. The study involved 75 adolescents with hypoandrogenism aged 13–18 years, who underwent a complex of clinical and laboratory examinations. All patients were conducted complex of anthropometric research and determination of the degree of delayed puberty, laboratory and instrumental examination. Free radical oxidation was determined by the levels of malondialdehyde, conjugated dienes, carbonated proteins, superoxide dismutase and catalase in the serum, and restored glutathione and glutathione peroxidase in whole blood. Based on their determination, the coefficient of oxidative stress was calculated. Statistical processing of results was performed using parametric and nonparametric methods. The study of indicators of the free radical oxidation process found that adolescents with hypoandrogenism have multidirectional changes in the oxidation of proteins and lipids, namely: the level of conjugated dienes increases, the concentration of malondialdehyde remains at the level of the control group, and the level of carbonated proteins tends to decrease. As for the activity of antioxidant protection enzymes, a significant decrease in the level of glutathione peroxidase was detected, while the level of superoxide dismutase and catalase remained at the level of normative indicators. Oxidative stress accompanies and is one of the pathogenetic links in the formation or maintenance of the state of hypoandrogenism in boys. This requires the use of antioxidants, the complex of which must be selected individually.

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