scholarly journals Interplay between antioxidant activity, health and disease

2019 ◽  
Vol 10 (1) ◽  
pp. 4893-4901 ◽  

The article discusses the relationship between oxidative stress (OS) and pathological conditions, the possibilities and benefits of estimating OS considering the integral antioxidant activity (AOA) as an OS criterion, and using a simple accessible hybrid potentiometric method (HPM) with a mediator system for AOA monitoring. The results of AOA of blood serum in healthy volunteers and patients with various diseases are presented. Preliminary reference values are found. The lower levels of AOA of blood serum in patients with different diseases in comparison with the control group are observed. The potential mechanisms of changes in the AOA levels and it’s clinical significance are discussed from the position of biointerfaces interplay. With AOA equal or greater than 1.40 mmol-eq l–1 the person is healthy, the range from 0.95 to 1.40 mmol-eq l–1 indicates that the patient is at risk and needs to undergo a further medical examination. When AOA blood serum is below 0.95 mmol-eq l–1, detailed diagnostics and relevant treatment are required. The findings allow suggesting that the approach determine antioxidant/oxidant activity of biological fluids holds considerable promise for monitoring OS; it opens up new opportunities in expanding the use of analytical chemistry in medicine.

Author(s):  
V. D. Lukianchuk ◽  
M. V. Ohloblina ◽  
O. V. Koveshnikov

The work is devoted to the research of the condition of the main components of the antioxidant system at the terms of the closed cranial cerebral trauma and at its pharmaceutical correction of Cerebrogermum.  It is determined that in case of using of Cerebrogermum the activity of superoxiddismutasa is rised in the blood serum in average on 35 % concerning the significations of the control group (the closed cranial cerebral trauma without treatment), on 72 hour of experiment the activity of this are fixed in the groups of both intact and reviewer rats. It does not also yield to reviewer preparation the ability of Cerebrogermum to resist to oxidizing stress because of the activity of catalasa. In relation to the estimation of antioxidant activity it considerably outweighs sizes for rats under influence of Cerebrogermum ( in average on 65 %) which are registered in the control group. The received in the experiment data give the basis to assert that the potential cerebral protector owns the exactly ability to resist to oxidative stress that is formed on a background of the mechanical damage of cerebrum.


Author(s):  
N. N. Malyutina ◽  
A. F. Bolotova ◽  
R. B. Eremeev ◽  
A. Zh. Gilmanov ◽  
D. Yu. Sosnin

Introduction. The overwhelming number of publications contains only data on the content of individual antioxidants, but not on the overall antioxidant activity of the blood in patients with vibration disease.The aim of the study was to determine the total antioxidant activity of blood serum in patients with vibration disease.Materials and methods. Th e main group consisted of 30 people diagnosed with “Vibration disease” of 1 degree (n=21) and 2 degrees (n=9). Th e control group consisted of 30 clinically healthy men, comparable in age with the main group (p=0.66). Th e total activity of antioxidant systems of blood plasma was evaluated photometrically using the test system “Total antioxidant status-Novo” (“Vector-best”, Russia).Results. The indicator of the total antioxidant status (TAS) was 1,038±0.232 mmol/l in the examined main group, against 1,456±0.225 mmol/l in the examined control group (p<0.000001). Th e coefficient of variation (CV) in patients with vibration disease was 22.35%, 1.45 times higher than in the control group (15.45%). In the main group there was a positive correlation between age and TAS (R=0.525), in the control group there was no such relationship (R=0.095). Th e degree of decrease depended on the severity of vibration disease.Conclusions. 1. The development of vibration disease is accompanied by a decrease in the antioxidant status of blood serum. 2. Th e degree of decrease in the antioxidant status of blood serum correlates with the severity of vibration disease. 3. Reduction of TAS can serve as a pathogenetic justification of the need to include drugs and/or biologically active additives with antioxidant activity in therapy


2021 ◽  
pp. 096032712110134
Author(s):  
O Zouaoui ◽  
K Adouni ◽  
A Jelled ◽  
A Thouri ◽  
A Ben Chrifa ◽  
...  

Phytochemical composition and antioxidant activity of flowers decoction at post-flowering stage (F3D) of Opuntia dejecta were determined. The obtained findings demonstrate that F3D has a marked antioxidant activity in all tested assays. Furthermore, the present study was designed to test the protective activity of F3D against induced Diabetes type 2 (DT2) in male rats. Those metabolic syndromes were induced by a high-fructose diet (HFD) (10% fructose solution) for a period of 20 weeks. F3D was administered orally (100 and 300 mg/kg body weight) daily for the last 4 weeks. Metformin (150 mg/kg body weight) was used as a standard drug and administrated orally for the last 4 weeks. The results showed a significant increase in blood glucose, triglycerides and hepatic markers (ALAT, ASAT and ALK-P) in HFD group. A significant increase in hepatic TBARS and a significant decrease in SOD, CAT and GPX were observed in fructose fed rats compared to control group. Administration of F3D showed a protective effect in biochemical and oxidative stress parameters measured in this study. Also, oral administration of F3D restored the histological architecture of rat liver in comparison with rats fed HFD. In conclusion, F3D attenuated hepatic oxidative stress in fructose-fed rats.


2018 ◽  
Vol 36 (11) ◽  
pp. 1205-1210
Author(s):  
Didem Arman ◽  
Secil Ercin ◽  
Sevilay Topcuoğlu ◽  
Ayşem Kaya ◽  
Taner Yavuz ◽  
...  

Objective The present study aimed to assess the global oxidant and antioxidant status in infants born to preeclamptic mothers and their correlation with cardiac functions. Study Design We compared 40 infants born to preeclamptic mothers with 40 premature infants born to normotensive mothers. We assessed the relationship between echocardiographic measurements and total antioxidant capacity (TAC) and total oxidant status (TOS) values. Results In the study group, TAC, TOS, and oxidative stress index (OSI) levels were significantly higher in the cord blood (p = 0.03, 0.04, and 0.039, respectively) than in the control group. We did not observe any correlation between echocardiographic measurements and TAC, TOS, and OSI levels in infants born to preeclamptic mothers. Conclusion Compared with the control group, despite higher TAC levels in infants born to preeclamptic mothers, concurrent elevated OSI levels reveal that the oxidant–antioxidant balance is disturbed in favor of oxidants. Furthermore, the findings of this study suggest that echocardiographic parameters are unaffected by the oxidant status.


2019 ◽  
Vol 2019 ◽  
pp. 1-32 ◽  
Author(s):  
Martha A. Sánchez-Rodríguez ◽  
Víctor Manuel Mendoza-Núñez

Oxidative stress (OS) is the imbalance between oxidant and antioxidant molecules, in favor of oxidants, that causes aging and disease. Many studies have been published that demonstrate the relationship between OS and human health and disease; however, the following questions arise: (i) how are we sure that the OS is present in a biological process? (ii) Is the OS reported in the different investigations equivalent? (iii) What are the best oxidant and antioxidant markers for OS diagnosis? (iv) Can we establish the types and the intensity of the OS? (v) Does OS index could be useful for research and/or application in clinical medicine? In this regard, several indexes have been proposed to measure OS in humans relative to the state of health and disease, among which the following can be highlighted: Oxidative Stress Index (OSI), Tiol Ratios (-SH/TT, -SS/-SH, and-SS/TT), Glutathione Ratio (GSSG/GSH), Oxidative Stress Score (OSS), and OXY-index. Therefore, the aim of this review is to present the state of the art of knowledge about OS indexes for diagnosis of health or disease in humans. We searched for articles in English or Spanish in the PubMed/MEDLINE and Scopus electronic databases published up until May 2019. The keywords used were “oxidative stress,” “index,” and “oxidative stress index.” It was identified 11479 records in both databases, and 490 articles were analyzed. Our review suggests that all indexes analyzed allow diagnose and differentiate the OS related to human health and disease. Also, the studies on OSI, Oxy-score, and OSS indexes have proven to be reliable, practical, and with clinical utility. However, it is necessary to continue with longitudinal studies, especially assess the usefulness of the indexes in the clinical prognosis, and make comparative studies between the different indexes.


Author(s):  
SACHIN NEEKHRA ◽  
HIMANI AWASTHI ◽  
DCP SINGH

Objective: The current study deals with the evaluation of neuropharmacological activities of hydroalcoholic extract of the plant Streblus asper. Methods: Hydroalcoholic extract of S. asper leaves was administered to animals at the dose of 200 and 400 mg/kg p.o., respectively. The neuropharmacological activities, namely, anxiolytic, muscle-relaxant, nootropic, and locomotor activities of hydroalcoholic extract of S. asper leaves were evaluated. The antioxidant activity of the hydroalcoholic extract of S. asper leaves was also investigated. Results: The dose 400 mg/kg p.o. of hydroalcoholic extract indicated significant variation with control group on neuropharmacological activity, especially nootropic and locomotion, whereas the mentioned dose did not show a significant effect on anxiolytic and muscle-relaxant activities. Percentage scavenging activities and inhibition concentration (IC50) were reported as 63.132 at 100 μg/ml and 35.33, respectively. Conclusion: It was found that hydroalcoholic extract of S. asper leaves can treat central nervous system disorders caused by oxidative stress.


2018 ◽  
Vol 2018 ◽  
pp. 1-7 ◽  
Author(s):  
Maria Cristina Pintus ◽  
Milena Lussu ◽  
Angelica Dessì ◽  
Roberta Pintus ◽  
Antonio Noto ◽  
...  

Despite the advancements in medical knowledge and technology, the etiopathogenesis of bronchopulmonary dysplasia (BPD) is not yet fully understood although oxidative stress seems to play a role, leading to a very demanding management of these patients by the neonatologist. In this context, metabolomics can be useful in understanding, diagnosing, and treating this illness since it is one of the newest omics science that analyzes the metabolome of an individual through the investigation of biological fluids such as urine and blood. In this study, 18 patients admitted to the Neonatal Intensive Care Unit of the Cagliari University Hospital were enrolled. Among them, 11 patients represented the control group and 7 patients subsequently developed BPD. A sample of urine was collected from each patient at 7 days of life and analyzed through 1H-NMR coupled with multivariate statistical analysis. The discriminant metabolites between the 2 groups noted were alanine, betaine, trimethylamine-N-oxide, lactate, and glycine. Utilizing metabolomics, it was possible to detect the urinary metabolomics fingerprint of neonates in the first week of life who subsequently developed BPD. Future studies are needed to confirm these promising results suggesting a possible role of microbiota and oxidative stress, and to apply this technology in clinical practice.


2021 ◽  
pp. 70-80
Author(s):  
D. A. Evseenko ◽  
Z. A. Dundarov

Objective: to determine the clinical efficiency of antioxidant therapy in patients with liver cirrhosis and acute blood loss.Material and methods. The study included 286 patients with liver cirrhosis and acute blood loss of varying degrees of severity. The patients were divided into two series of studies. In the first series, the patients received the therapy according to the clinical diagnostic and treatment protocols, in the second series 1 according to the same protocols in combination with an intravenous administration of the antioxidant complexes “Reamberin” and “Fluimucil”. After 48 hours from admission, the antioxidant status of blood serum, the blebbing index of lymphocytes, the concentration of uric acid, and the level of hemoglobin were analyzed. The indicators of the clinical efficiency of the treatment were determined: risk of absolute mortality, risk of relative mortality, the number needed to treat.Results. The blood serum of the patients from the first series of studies was characterized by pronounced prooxidant activity, high values of the lymphocyte blebbing index, and a small amount of uric acid, which was indicative of the development of oxidative stress. The mortality rate in this series of studies was 26.0 %. The patients of the second series of studies were characterized by pronounced antioxidant activity of blood serum, low values of the lymphocyte blebbing index, and high concentrations of uric acid, which indicated a decrease in the activity of systemic oxidation processes. The mortality rate in this series of studies was 18.2 %. The duration of the treatment decreased from 16.5 days (first series) to 13.0 days (second series).Conclusion. The combined use of the “Reamberin” and “Fluimucil” complexes as part of the therapy according to the clinical diagnostic and treatment protocols leads to a relief of oxidative stress in patients with liver cirrhosis complicated by acute blood loss. The blood serum of these patients is characterized by pronounced antioxidant activity, low values of the lymphocyte blebbing index, and a high concentration of uric acid, which reduces the risk for the development of multiple organ failure syndrome. This therapy decreases the mortality rate to 18.2 % and the duration of the treatment to 13.0 days.


2018 ◽  
Vol 6 (2) ◽  
pp. 37-43
Author(s):  
Hamid Heidary Dartoti ◽  
Farzin Firozian ◽  
Sara Soleimani Asl ◽  
Akram Ranjbar

Objectives: The present study aimed to investigate the antioxidant activity of cerium oxide nanoparticles (CeNPs) against paraquat (PQ)-induced liver injury in rats. Methods: Thirty-two male rats were divided into four 8-member groups and treated intraperitoneally with PQ and/or CeNPs for 14 days. Group 1 received PQ (5 mg/kg/d), group 2 received CeNPs (15, 30, and 60 mg/kg/d), group 3 received a combination of PQ (5 mg/kg/d) and CeNPs (15, 30, and 60 mg/kg/d), and group 4 (control group) received saline solution. Serum samples along with liver tissue samples were collected from all the rats. Oxidative stress (OS) biomarkers including total antioxidant capacity, lipid peroxidation, total thiol groups, DNA damage, and nitric oxide levels were determined. Histological samples were also analyzed using hematoxylin and eosin staining slides. Results: Levels of oxidative stress and hepatic tissue damage were significantly higher in the PQ group compared to the control group. CeNPs at a dose of 15 mg/kg showed the antioxidant activity and compromised the PQ-induced damage. Conclusion: In the scenario tested in this study, CeNPs could reduce the levels of OS, as well as hepatic damage induced by PQ.


2012 ◽  
Vol 36 (0A) ◽  
pp. 62-69
Author(s):  
Hazim J. Al – Daraji

This study was conducted to evaluate the effect of adding different levels of rocket salad seeds powder to the diet on seminal plasma traits of roosters subjected to oxidative stress induced by hydrogen peroxide. A total of 60 Hy – line laying breeder roosters 57 weeks old were used in this study. Roosters were randomly distributed into 5 treatments with 3 replicates each. Each replicate constituted of 4 roosters (12 roosters for each treatment). Experimental treatments were as following: T1: Males fed control diet and normal water, T2: Males fed diet supplemented with 3 gm rocket salad powder / kg of diet + 0.25 ml hydrogen peroxide (0.5%) / litter of water, T3: Males fed diet supplemented with 3 gm rocket salad powder / kg of diet + 0.5 ml hydrogen peroxide (0.5%) / litter of water, T4: Males fed diet supplemented with 3 gm rocket salad powder / kg of diet + 1 ml hydrogen peroxide (0.5%) / litter of water, and T5: Males fed control diet and drink tap water supplemented with 1 ml hydrogen peroxide (0.5%) / litter of water. Males were treated with hydrogen peroxide (6%) and rocket salad for 12 weeks starting from 59 week of male ages. Results revealed that treated the roosters with hydrogen peroxide without adding rocket salad powder to the diet of these roosters (T5) resulted in highly significant (p< 0.01) decrease as regards concentrations of phospholipids, cholesterol, glutathione, the activity of superoxide desmutase and catalase, and total antioxidant activity in seminal plasma and highly significant (p< 0.01) increase concerning concentrations of tyrosine and malondialdehyde as compared with control group (T1) and rocket salad powder treatments (T2, T3, T4) after 12 weeks of experiment. However, supplementing diet of roosters with rocket salad powder (T2, T3, T4) resulted in highly significant (p< 0.01) increase with relation to concentrations of phospholipids, cholesterol, glutathione, the activity of superoxide desmutase and catalase, and total antioxidant activity in seminal plasma and highly significant (p< 0.01) decrease respecting concentrations of tyrosine and malondialdehyde as compared with (T5) In conclusion adding rocket salad powder to the diet of roosters had important role in limiting the negative effect of oxidative stress induced by hydrogen peroxide on seminal plasma quality of roosters. Therefore, dietary supplementation with rocket salad powder could be used as one of important tools for improving semen quality of roosters.


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