scholarly journals Bio protectors’ effect on the composition of some amino acids under alcohol-induced oxidative stress

2021 ◽  
pp. 50-57
Author(s):  
Liliia Kalachniuk ◽  
Petro Fedyshyn ◽  
Oleh Smirnov ◽  
Viktoriia Prys-Kadenko ◽  
Roman Palonko ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Amino Acids ◽  
Malonic Dialdehyde ◽  
Experimental Period ◽  
The Body ◽  
Raw Material ◽  
Depressant Effect ◽  
Control Groups ◽  
Increased Activity ◽  
Amino Acid Spectrum

The studies, which may reveal some elements of regulation between the metabolic processes of proteins (at the level of translation and changes in the amino acid spectrum) as well as catabolism and anabolism of carbohydrates under conditions of pathological deviations of the functioning of the animal organism, are promising, and the search for protective substances of a different nature is necessary. The aim is to study and analyze a bio protectors’ effect on the composition of some amino acids under alcohol-induced oxidative stress. During the experimental period, changes in the body weight of rats confirm the depressant effect of alcohol on the dynamics of weight gain of animals during their growth and development, and the positive protective effect of betaine and additives (protein+minerals). The increased activity of alanine aminotransferase, aspartate aminotransferase, γ-glutamyltransferase in the blood serum of rats in experimental groups of animals with the absence of protectors’ substances in the diet indicates a deviation in the functional capacity of the liver. The determined indices of the content of creatinine and urea were increased significantly that points out on possible pathological deviation of the kidney. Under alcohol substances, changes of such biochemical indexes value as lactate dehydrogenase, superoxide dismutase, and catalase, and the content of malonic dialdehyde indicate oxidative stress. In the case of bio protectors’ presence, values of biochemical parameters become to ones in the animals of control groups. It was observed, that betaine has a higher potential for the correction of the above pathological abnormalities than protein-containing additives with minerals in the form of chelate, but the last is perspective for further study and their use as a raw material for the development of more complex bio protectors

scholarly journals Male Infertility: Pathogenetic Significance of Oxidative Stress and Antioxidant Defence (Review)

2021 ◽  
Vol 24 (6) ◽  
pp. 107-116
Author(s):  
Vsevolod Koshevoy ◽  
Svitlana Naumenko ◽  
Pavlo Skliarov ◽  
Serhiy Fedorenko ◽  
Lidia Kostyshyn
Keyword(s):  
Oxidative Stress ◽  
Male Infertility ◽  
Nitrosative Stress ◽  
Antioxidant Properties ◽  
Malonic Dialdehyde ◽  
The Body ◽  
Redox Activity ◽  
Enzymatic System ◽  
Male Body ◽  
Mitochondrial Potential

The basis of the pathogenesis of male infertility is the processes of peroxide oxidation of biological substrates, especially lipids and proteins. By destroying the sperm membrane, toxic peroxidation products reduce its motility and ability to fertilize the egg, which is determined by a decrease in the number of motile sperm in the ejaculate. These changes lead to complete or partial male infertility. The authors of the review found that is accompanied by a damaging effect on the structural and functional activity of the gonads and is manifested, in particular, by an imbalance in the hormonal background of the male body. Similar effects are characteristic of an increase in the content of reactive Nitrogen species and its metabolites, which cause nitrosative stress, which is also the cause of male hypofertility and is inseparable from the state of oxidative stress. In scientific work it is determined that the accumulation of harmful peroxidation products leads to damage and destruction of sperm DNA, reduced activity of acrosomal enzymes and mitochondrial potential of sperm, reduced overall antioxidant activity. This makes it impossible for an adequate response of the body. Multi component antioxidant defense system resists stress. It is represented by enzymatic and non-enzymatic links, which can neutralize harmful radicals and peroxidation products. It contributes to the full manifestation of reproductive function. The presence of powerful antioxidant properties of catalase, superoxide dismutase, and enzymes of the thiol-disulfide system, which form the enzymatic system of antioxidant protection, as well as selenium, zinc, copper, other trace elements, retinol, tocopherol, ascorbic acid, and vitamins as parts of the non-enzymatic system is shown. The efficiency of registration is substantiated thin biochemical shift detectors or complex methods, such as total antioxidant status of sperm or sperm plasma, mitochondrial membrane potential, etc along with simple markers of oxidative stress, such as diene conjugates, malonic dialdehyde, and metabolites of the Nitrogen Oxide cycle. Given the leading role of oxidative stress in the development of male hypofertility, the prospect of further research is the search for modern means for correction, especially among substances with pronounced redox activity

scholarly journals Amino acids targeted based metabolomics study in non-segmental Vitiligo: a pilot study

2021 ◽  
Author(s):  
Rezvan Marzabani ◽  
Hassan Rezadoost ◽  
Peyman Chopanian ◽  
Nikoo Mozafari ◽  
Mohieddin Jafari ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Amino Acids ◽  
Treatment Process ◽  
The Body ◽  
Molar Ratios ◽  
Metabolomics Study ◽  
Amino Acid Profiles ◽  
Set Up ◽  
And Oxidative Stress

AbstractIntroductionVitiligo is an asymptomatic disorder that results from the loss of pigments (melanin), causing skin or mucosal depigmentation and impairs beauty.ObjectiveDue to the complexity of the pathogenesis of this disease and various theories including self-safety theory, oxidative stress, neurological theory and internal defects of melanocytes behind it, and finally, the vast role of amino acids in body metabolism and various activities of the body, amino acids targeted based metabolomics was set up to follow any fluctuation inside this disease.MethodologyThe study of amino acid profiles in plasma of people with non-segmental vitiligo using a liquid chromatography equipped with fluorescent detector was performed to find remarkable biomarkers for the diagnosis and evaluation of disease severity of patients with vitiligo. Twenty-two amino acids derivatized with o-phthalaldehyde (OPA) and fluorylmethyloxycarbonyl chloride (FMOC), were precisely determined. Next, the concentrations of these twenty-two amino acids and their corresponding molar ratios were calculated in 37 patients (including 18 females and 19 males) and corresponding 34 healthy individuals (18 females and 16 males). Using R programing, the data were completely analyzed between the two groups of patients and healthy to find suitable and reliable biomarkers.ResultsInterestingly, comparing the two groups, in the patient group, tyrosine, cysteine, the ratio of tyrosine to lysine and the ratio of cysteine to ornithine were increased while, arginine, lysine, ornithine and glycine ratios to cysteine have been decreased. These amino acids were selected for identification of patients with accuracy of detection of approximately 0.95 using the assessment of logistic regression.ConclusionThese results indicate a disruption of the production of melanin, increased immune activity and oxidative stress, which are also involved in the effects of vitiligo. Therefore, these amino acids can be used as biomarker for the evaluation of risk, prevention of complications in individuals at risk and monitoring of treatment process.

The Effects of Melatonin and Propolis on Markers of Inflammation, Oxidative Stress, Clinical Outcomes, and Survival Rate in Patients with Primary Sepsis Hospitalized in Intensive Care Unit: A Randomized Clinical Trial

2020 ◽  
Author(s):  
Naseh Pahlavani ◽  
Alireza Sedaghat ◽  
Gordon A Ferns ◽  
Mahdie Mir ◽  
Mahsa Malekahmadi ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Clinical Trial ◽  
Survival Rate ◽  
Clinical Outcomes ◽  
The Body ◽  
Calorie Intake ◽  
Control Group ◽  
Control Groups ◽  
Markers Of Inflammation ◽  
And Oxidative Stress

Abstract Background: Systemic Inflammatory Response Syndrome (SIRS) that occurs under stressful conditions affecting all organs of the body. Previous studies have shown that propolis and melatonin have the potential to improve inflammation and oxidative stress, so the aim of this study was to investigate the effects of these supplements on SIRS treatment.Method: This was a randomized, controlled clinical trial in SIRS patients comprising 55 subjects that were randomly assigned to 3 intervention or control groups. In the 3 intervention groups, patients were treated with propolis alone (at dose of 1000 mg/day), propolis (1000 mg/day) plus melatonin (20 mg/day), and melatonin alone (20 mg/day) respectively, while there was no intervention in the control group. The inflammatory and oxidative stress markers and clinical outcomes were measured before and after of the intervention, also 28-day survival rate was assessed. Results: Propolis plus melatonin reduced serum interleukin 6 (p = 0.001) and CRP levels (p <0.001), and was associated with an increased gavage intake (p = 0.016). At the end of the study, there was no difference between the groups in the oxidative stress and hematological indices. In the propolis+melatonin group, the clinical outcomes were significantly improved (p <0.05). Also the SOFA score between the groups did not differ at any time, its changes was significant during the time (p>0.001). The average survival after 28 days of follow-up in the propolis, propolis+melatonin, melatonin and control groups were 24.08, 25.69, 22.05 and 19.42 days respectively, although this was not statistically significant (p=0.07).Conclusion and relevance: Supplementation with propolis+melatonin may help to improve clinical outcomes by reducing inflammation and was probably associated with an increase in the calorie intake, leading to an increase in the survival rate in SIRS patients, although more studies are necessary to prove these effects. Trial registration: IRCT20181025041460N1.

scholarly journals Quercetin and curcumin effects in experimental pleural inflammation

2020 ◽  
Author(s):  
Cristina Bidian ◽  
Daniela-Rodica Mitrea ◽  
Olivia Gabriela Vasile ◽  
Adriana Filip ◽  
Adriana Florinela Cătoi ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Experimental Studies ◽  
The Body ◽  
Male Rats ◽  
Protective Effects ◽  
Control Groups ◽  
Beneficial Effects ◽  
Pulmonary Pathology ◽  
Anti Inflammatory ◽  
Antioxidant Effects

Background. The inflammatory mechanisms occur with the highest prevalence in pulmonary pathology. In pharmaceutical industry, carrageenan is used as a pro-inflammatory agent when the activity of anti-inflammatory agents is tested. The oxidative stress represents the imbalance between pro-oxidants and antioxidants which can lead to the activation of the oxidative mechanisms with noxius potential to the body. In experimental studies, quercetin is the most active flavonoid, having the highest anti-inflammatory and antioxidant effects. Curcumin has antioxidant effects that are similar to those of the standard antioxidants and exerts direct anti-inflammatory activity. Aims. The aim of this study is to determine the antioxidant effects of quercetin and curcumin on a carrageenan-induced pleural inflammation. Methods. Eight groups of adult male rats were used: Ia and Ib -control groups, IIa and IIb -with carrageenan administration, IIIa and IIIb -with curcumin and carrageenan, IVa and IVb -with quercetin and carrageenan administration. Blood and lung samples were taken at 4 hours (Ia, IIa, IIIa, IVa groups) and at 24 hours (Ib, IIb, IIIb, IVb groups) after carrageenan administration. Results. In serum, at 4 and at 24 hours, curcumin and quercetin showed protective effects, reducing the oxidative stress (malondialdehyde significantly decreased) and stimulating the antioxidant protection (ceruloplasmin and glutathione significantly increased) in rats with administration of these substances, in comparison to the group that received only carrageenan. In the lungs, at 4 hours, the oxidative stress was significantly reduced only in the rats that received quercetin (malondialdehyde significantly decreased), modifications that were not observed at 24 hours.     Conclusions. In serum, curcumin presented higher antioxidant effects, compared to quercetin. In lungs, quercetin administration showed superior beneficial effects, but only temporarily.

scholarly journals STRESS-PROTECTIVE EFFECT OF AQUEOUS INFUSION OF FERMENTED LEAVES CHAMAENERION AN-GUSTIFOLIUM (L.) SCOP.

2020 ◽  
pp. 267-272
Author(s):  
Svetlana Olegovna Volodina ◽  
Vladimir Vital'yevich Volodin ◽  
Elena Vladimirovna Nekrasova ◽  
Vladimir Nikolayevich Syrov ◽  
Zainab Abdurakhmanovna Khushbaktova
Keyword(s):  
Protective Effect ◽  
Acute Stress ◽  
Malonic Dialdehyde ◽  
Blood Parameters ◽  
The Body ◽  
Raw Material ◽  
Middle Taiga ◽  
Taiga Zone ◽  
North East ◽  
Water Infusion

The stress-protective effect of an aqueous infusion of fermented leaves of flowering plants of Сhamaenerion angustifolium (L.) Scop., (Onagraceae) collected in the middle taiga zone of the European North-East of Russia (near Syktyvkar), in experiments on white laboratory mice under acute stress has been studied. As a model of acute stress, the hanging of animals by the neck fold for 19 hours was used. Water infusion (1 : 20) was administered to each animal 0.5 and 1.0 ml for five days per os. It was found that the prophylactic administration of water infusion of fermented leaves in doses of 0.5 and 1.0 ml lead to normalizing effect on the mass of internal organs and peripheral blood parameters that have sharp pathological deviations under stress. The content of ascorbic acid and cholesterol in the adrenal glands and malonic dialdehyde in the liver of animals receiving infusion, approached the corresponding values in intact animals, which indicates the protective and antioxidant effects. With the introduction of sodium nitroprusside (25 mg/kg) and ethanol (25% solution, 9g/kg) a pronounced antihypoxic and antitoxic effects were found, which are typical for such well-known adaptogenic plants as ginseng and eleutherococcus. Due to data obtained, the raw material of fermented leaves of Сhamaenerion angustifolium could be considered as adaptogenic remedy that increases the overall non-specific resistance of the body and recommended not only as a tonic tea drink, but also for wider use in functional nutrition and medicine for the prevention and treatment of stress-induced and age-dependent diseases.

scholarly journals METABOLISM OF HOMOCYSTEIN AND GLUTATHIONE IN ERYTHROCYTES IN HYPOTHERMAL STORAGE

2019 ◽  
Vol 19 (1) ◽  
pp. 115-118
Author(s):  
V.V. Ramazanov ◽  
E.L. Volovelskaya ◽  
S.V. Rudenko ◽  
A.Yu. Semenchenko ◽  
V.A. Bondarenko
Keyword(s):  
Oxidative Stress ◽  
Amino Acids ◽  
Red Blood Cells ◽  
Blood Cells ◽  
Redox Homeostasis ◽  
The Body ◽  
Antioxidant Potential ◽  
Vascular Pathology ◽  
Hemoglobin Oxidation ◽  
Stimulation Of

When hypothermic storage of red blood cellsб there is a decrease in the level of glutathione and an increase in the concentration of homocysteine, at the same time, inclusion in the medium of substrate amino-acids of the synthesis of glutathione activates the utilization of this cytotoxin. Moreover, stimulation of the synthesis of glutathione reduces the loss of membrane proteins and lowers the intensity of hemoglobin oxidation that ensures the preservation of the osmotic stability of erythrocytes. Red blood cells as a component of the body redox homeostasis absorb and neutralize reactive oxygen and nitrogen species, which normally determine a certain antioxidant potential and are not enough to maintain the structural and functional state of red blood cells after isolation from donor blood and storage. Oxidative stress in cells, including red blood cells, in various pathologies usually causes a decrease in the level of glutathione and an impairment of its synthesis that leads to an increase in the production of homocysteine ​​and its entry into the blood plasma. Homocysteine ​​is a cytotoxic amino acid that enhances the production of superoxide, limits the bioavailability of nitric oxide and causes the development of vascular pathology. The data presented in the review indicate that stimulation of the antioxidant potential of erythrocytes during the storage may prevent the development of oxidative stress and inflammation during subsequent transfusion. In addition, the preservation of the viability indicators of various cells during cryopreservation in a medium with substrate amino-acids shows that stimulation of the antioxidant potential contributes to an increase in the cell resistance to the damaging factors of freeze-thawing.

scholarly journals Effect of Vitamin C and Selenium on Some Physiological and Reproductive Characters in Adult Roosters Exposed to Oxidative Stress Induced by Hydrogen Peroxide

2012 ◽  
Vol 36 (0A) ◽  
pp. 32-42
Author(s):  
محمودسالم محمدشيت المعاضيدي
Keyword(s):  
Oxidative Stress ◽  
Hydrogen Peroxide ◽  
Body Weight ◽  
Vitamin C ◽  
Sodium Selenite ◽  
Sperm Concentration ◽  
Experimental Period ◽  
The Body ◽  
Abnormal Sperm ◽  
Study Results

The present study was designed to investigate the effect of Vitamin C (450 mg/kg diet) and sodium selenite (0.5 mg/kg diet) in adult white Leghorn male chickens (30 weeks of age), whose concomitantly exposed to oxidative stress induced by hydrogen peroxide (0.5%) supplemented with drinking water for 6 weeks on reproductive performance. Semen were collected at 0, 2, 4 and 6weeks, The study results showed that hydrogen peroxide treatment caused a significant decrease in the body weight, sperm concentration, mass motility and individual motility during experimental period. Also a decrease in testosterone and testis glutathione concentration at the 6th week of the treatment, accompanied with a significant increase in dead and abnormal sperm percentage, testis malondialdehyde level compared with the control group. Histopathological changes revealed presence of necrosis and sloughing in the epithelial lining of the semineferous tubules and vacuolar degeneration of the supporting cells that fall in the lumen of the semineferous tubules and necrosis of interstitial cells. Vitamin C and sodium selenite with hydrogen peroxide caused a significant increase in body weight, sperm concentration, mass motility and individual motility during the experimental period, testosterone and glutathione level, accompanied with a significant decrease in dead and abnormal sperm percentages and Malondialdehyde level compared with hydrogen peroxide. In addition to the improvement in the histological picture of the semineferous tubules, mitosis germ cells were observed through their arrangement in circular tubules. It was concluded from this study that Vitamin C and Sodium selenite reverse the adverse effects produced by hydrogen peroxide on certain physiological and reproductive aspects in adult male chickens.

scholarly journals Inability of healthy subjects to deposit potassium during hypokinesia and potassium supplementation

2009 ◽  
Vol 32 (1) ◽  
pp. 34 ◽  
Author(s):  
Yan G Zorbas ◽  
Kostas K Kakuris ◽  
Yuri F Federenko ◽  
Viktor A Deogenov
Keyword(s):  
Healthy Subjects ◽  
Experimental Period ◽  
The Body ◽  
Healthy Male ◽  
Control Groups ◽  
Deficient Diet ◽  
Control Subjects ◽  
Potassium Supplementation ◽  
Experimental Subjects ◽  
K Concentration

Objective: To determine the effect of potassium (K+) supplementation and hypokinesia (HK; diminished movement) on muscle K+ content and K+ loss. Methods: Studies were conducted on 40 healthy male volunteers during a pre-experimental period of 30 days and an experimental-period of 364 days. Volunteers were equally divided into four groups: unsupplemented control subjects (UCS), unsupplemented experimental subjects (UES), supplemented control subjects (SCS), and supplemented experimental subjects (SES). A daily supplement of 1.17 mmol potassium-chloride (KCl) per kg body weight was given to the subjects in the SCS and SES groups. Results: Muscle K+ content decreased (P < 0.05), and plasma K+ concentration, and K+ loss in urine and feces increased (P < 0.05) in the SES and UES groups compared with their pre-experimental levels and the values in their respective control groups (SCS and UCS). Muscle K+ content decreased more (P < 0.05), and plasma K+ concentration and K+ loss in urine and feces increased more (P < 0.05) in the SES group than in the UES group. Conclusion: Muscle K+ content is not decreased by the K+ deficient diet and K+ loss is not increased by the higher muscle K+ content in the body. Rather it is caused by the inability of the body to use K+ during HK and K+ supplementation.

Role of methionine in the correction of oxidative stress with increased physical exertion

2020 ◽  
pp. 74-80
Author(s):  
A. Khisamova ◽  
O. Gizinger
Keyword(s):  
Oxidative Stress ◽  
Amino Acids ◽  
Antioxidant Properties ◽  
Physical Exertion ◽  
The Body ◽  
Methyl Group ◽  
Metabolic Reactions ◽  
Search For Information ◽  
Sulfur Containing

Methionine is an indispensable sulfur-containing amino acid that is involved in processes unique to the body: initiation of protein synthesis; methylation process, an adenosine residue is attached to methionine and S-adenosylmethionine is formed; as a result of metabolic reactions, this methyl group is transferred to a number of substrates. In this case, adrenaline, melatonin, creatine, and other amino acids are formed. This article contains a literature review of articles that prove the antioxidant properties of methionine on the cell and the body as a whole. A large amount of literature and databases, such as Pubmed, Google.Scholar, Embase, have been worked out to search for information.

Effect of a high amino acid diet on antioxidant barrier parameters of rat skin. Part 2

2019 ◽  
Vol 1 ◽  
pp. 70-75
Author(s):  
M. Knaś ◽  
M. Niczyporuk ◽  
K. Grądzka ◽  
H. Car
Keyword(s):  
Oxidative Stress ◽  
Amino Acids ◽  
Body Weight ◽  
Amino Acid ◽  
The Body ◽  
Total Protein Content ◽  
Standard Diet ◽  
Acid Diet ◽  
High Amino Acid ◽  
Amino Acid Diet

<b>Purpose:</b> The imbalance between the formation of reactive oxygen species and antioxidant capacity of the body is known as oxidative stress. Exposition of the skin to free radicals, the origin of the internal and external causes activation of multiple mechanisms to eliminate them and prevent in this way the development of oxidative stress. The aim of this experiment was examining what changes are taking place in the antioxidant barrier of unwounded healthy skin of rats, who are on a high amino acids diet for 7 and 14 days at administered doses of 0.3 and 0.5 g/kg body weight. <br/><b>Materials and Methods:</b> The study was performed on male Wistar rats divided into 5 groups: 1. control (standard feed), 2. high amino acid diet (WPC-80 80% whey protein) administered for 7 days at a dose of 0.3g/kg of body weight, 3. WPC-80 for 7 days at a dose of 0.5g/kg of body weight, 4. WPC-80 for 14 days at a dose of 0.3g/kg of body weight, 5. WPC-80 for 14 days at a dose of 0.5g/kg of body weight. The concentration of superoxide dismutase 2 and 3, the concentration of catalase specific activity of glutathione peroxidase, the concentration of glutathione and total protein content were determined. <br/><b>Results:</b> The supplementation of the standard diet by the preparation of WPC-80 administered in a dose 0.5 g/kg body weight for 14 days containing methionine and cysteine (essential amino acids involved in the formation of glutathione), significantly increases the concentration of reduced glutathione. <br/><b>Conclusions:</b> Enrichment of a standard diet with WPC-80 caused by the significant increases of non-enzymatic antioxidant.

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