Systemic oxidative stress biomarkers in patients with vitreomacular traction syndrome

Oxidative stress biomarkers have been observed in peripheral blood of chronic periodontitis patients; however, their associations with periodontitis were not consistent. This meta-analysis was performed to clarify the associations between chronic periodontitis and oxidative biomarkers in systemic circulation. Electronic searches of PubMed and Embase databases were performed until October 2014 and articles were selected to meet inclusion criteria. Data of oxidative biomarkers levels in peripheral blood of periodontitis patients and periodontal healthy controls were extracted to calculate standardized mean differences (SMDs) and 95% confidence intervals (CIs) by using random-effects model. Of 31 eligible articles, 16 articles with available data were included in meta-analysis. Our results showed that periodontitis patients had significantly lower levels of total antioxidant capacity (SMD = −2.02; 95% CI: −3.08, −0.96;P=0.000) and higher levels of malondialdehyde (SMD = 0.99; 95% CI: 0.12, 1.86;P=0.026) and nitric oxide (SMD = 4.98; 95% CI: 2.33, 7.63;P=0.000) than periodontal healthy control. Superoxide dismutase levels between two groups were not significantly different (SMD = −1.72; 95% CI: −3.50, 0.07;P=0.059). In conclusion, our meta-analysis showed that chronic periodontitis is significantly associated with circulating levels of three oxidative stress biomarkers, indicating a role of chronic periodontitis in systemic diseases.

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Systemic Oxidative Stress Is Increased to a Greater Degree in Young, Obese Women Following Consumption of a High Fat Meal

Oxidative Medicine and Cellular Longevity ◽

10.4161/oxim.2.1.7860 ◽

2009 ◽

Vol 2 (1) ◽

pp. 19-25 ◽

Cited By ~ 20

Author(s):

Richard J. Bloomer ◽

Kelsey H. Fisher-Wellman

Keyword(s):

Oxidative Stress ◽

Trolox Equivalent Antioxidant Capacity ◽

Feeding Time ◽

Obese Women ◽

High Fat ◽

Oxidative Stress Biomarkers ◽

Post Feeding ◽

Stress Biomarkers ◽

Systemic Oxidative Stress ◽

Fat Meal

High fat meals induce oxidative stress, which is associated with the pathogenesis of disease. Obese individuals have elevated resting biomarkers of oxidative stress compared to non-obese. We compared blood oxidative stress biomarkers in obese (n = 14; 30 ± 2 years; BMI 35 ± 1 kg•m−2) and non-obese (n = 16; 24 ± 2 years; BMI 23 ± 1 kg•m−2) women, in response to a high fat meal. Blood samples were collected pre-meal (fasted), and at 1, 2, 4 and 6 hours post meal, and assayed for trolox equivalent antioxidant capacity (TEAC), xanthine oxidase activity (XO), hydrogen peroxide (H2O2), malondialdehyde (MDA), triglycerides (TAG), and glucose. An obesity status effect was noted for all variables (p < 0.001; MDA p = 0.05), with obese women having higher values than non-obese, except for TEAC, for which values were lower. Time main effects were noted for all variables (p ≤ 0.01) except for TEAC and glucose, with XO, H2O2, MDA and TAG increasing following feeding with a peak response at the four or six hour post feeding time point. While values tended to decline by six hours post feeding in the non-obese women (agreeing with previous studies), they were maintained (MDA) or continued to increase (XO, H2O2and TAG) in the obese women. While no interaction effects were noted (p > 0.05), contrasts revealed greater values in obese compared to non-obese women for XO, H2O2, MDA, TAG and glucose, and lower values for TEAC at times from 1–6 hours post feeding (p ≤ 0.03). We conclude that young, obese women experience a similar pattern of increase in blood oxidative stress biomarkers in response to a high fat meal, as compared to non-obese women. However, the overall oxidative stress is greater in obese women, and values appear to remain elevated for longer periods of time post feeding. These data provide insight into another potential mechanism related to obesity-mediated morbidity.

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Effects of Oral Glutathione Supplementation on Systemic Oxidative Stress Biomarkers in Human Volunteers

The Journal of Alternative and Complementary Medicine ◽

10.1089/acm.2010.0716 ◽

2011 ◽

Vol 17 (9) ◽

pp. 827-833 ◽

Cited By ~ 57

Author(s):

Jason Allen ◽

Ryan D. Bradley

Keyword(s):

Oxidative Stress ◽

Oxidative Stress Biomarkers ◽

Stress Biomarkers ◽

Systemic Oxidative Stress ◽

Human Volunteers

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OXIDATIVE STRESS BIOMARKERS IN EXPIRATED AIR OF HEALTHY HUMANS AND PROMISING TECHNIQUES OF THEIR ANALYSIS DURING SPACE FLIGHT

Aerospace and Environmental Medicine ◽

10.21687/0233-528x-2020-54-3-5-21 ◽

2020 ◽

pp. 5-21

Author(s):

L.N. Mukhamedieva ◽

◽

D.S. Tsarkov ◽

D.S. Ozerov ◽

G.Yu. Grigoriev ◽

...

Keyword(s):

Oxidative Stress ◽

Space Flight ◽

Oxidative Stress Biomarkers ◽

Stress Biomarkers ◽

Healthy Humans

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Association between Vitamin D Status, Oxidative Stress Biomarkers and Viral Load in Human Immunodeficiency Virus Type 1 Infection

Current HIV Research ◽

10.2174/1570162x15666171005170227 ◽

2017 ◽

Vol 15 (5) ◽

Cited By ~ 4

Author(s):

Tamires Flauzino ◽

Andrea N.C. Simao ◽

Elaine R.D. de Almeida ◽

Helena K. Morimoto ◽

Sayonara R. Oliveira ◽

...

Keyword(s):

Oxidative Stress ◽

Vitamin D ◽

Human Immunodeficiency Virus ◽

Viral Load ◽

Human Immunodeficiency Virus Type ◽

Vitamin D Status ◽

Oxidative Stress Biomarkers ◽

Stress Biomarkers ◽

Immunodeficiency Virus

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Oxidative Stress Biomarkers in Urine of Metal Carpentry Workers Can Be Diagnostic for Occupational Exposure to Low Level of Welding Fumes from Associated Metals

Cancers ◽

10.3390/cancers13133167 ◽

2021 ◽

Vol 13 (13) ◽

pp. 3167

Author(s):

Flavia Buonaurio ◽

Maria Luisa Astolfi ◽

Daniela Pigini ◽

Giovanna Tranfo ◽

Silvia Canepari ◽

...

Keyword(s):

Oxidative Stress ◽

Occupational Exposure ◽

Oxidation Products ◽

Control Group ◽

Welding Fumes ◽

Oxidative Stress Biomarkers ◽

Limit Values ◽

Stress Biomarkers ◽

Specificity And Sensitivity ◽

The Impact

Urinary concentrations of 16 different exposure biomarkers to metals were determined at the beginning and at the end of a working shift on a group of workers in the metal carpentry industry. Five different oxidative stress biomarkers were also measured, such as the oxidation products of RNA and DNA metabolized and excreted in the urine. The results of workers exposed to metals were compared to those of a control group. The metal concentrations found in these workers were well below the occupational exposure limit values and exceeded the mean concentrations of the same metals in the urine of the control group by a factor of four at maximum. Barium (Ba), mercury (Hg), lead (Pb) and strontium (Sr) were correlated with the RNA oxidative stress biomarker, 8-oxo-7, 8-dihydroguanosine (8-oxoGuo), which was found able to discriminate exposed workers from controls with a high level of specificity and sensitivity. The power of this early diagnostic technique was assessed by means of the ROC curve. Ba, rubidium (Rb), Sr, tellurium (Te), and vanadium (V) were correlated with the level of the protein oxidation biomarker 3-Nitrotyrosine (3-NO2Tyr), and Ba, beryllium (Be), copper (Cu), and Rb with 5-methylcytidine (5-MeCyt), an epigenetic marker of RNA damage. These effect biomarkers can help in identifying those workers that can be defined as “occupationally exposed” even at low exposure levels, and they can provide information about the impact that such doses have on their health.

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Antioxidants, lysosomes and elements status during the life cycle of sea trout Salmo trutta m. trutta L.

Scientific Reports ◽

10.1038/s41598-021-85127-3 ◽

2021 ◽

Vol 11 (1) ◽

Author(s):

Natalia Kurhaluk ◽

Halyna Tkachenko

Keyword(s):

Oxidative Stress ◽

Lipid Peroxidation ◽

Muscle Tissue ◽

Salmo Trutta ◽

Protein Carbonyl ◽

Oxidative Modification ◽

Oxidative Stress Biomarkers ◽

Development Stages ◽

Stress Biomarkers ◽

Element Contents

AbstractThe aim of our study was to elucidate the effects of both development stages (parr, smolt, adult, spawner), and kelt as a survival form and sex (male, female) on the functional stability of the lysosomal complex, biomarkers of oxidative stress, and element contents in the muscle tissue of the sea trout (Salmo trutta m. trutta L.) sampled in the Pomerania region (northern Poland). We have evaluated the maximal activities of lysosomal enzymes (alanyl aminopeptidase, leucyl aminopeptidase, β-N-acetylglucosaminidase, and acid phosphatase), lipid peroxidation level, and protein carbonyl derivatives as indices of muscle tissue degradation. The relationship between lysosomal activity and oxidative stress biomarkers estimated by the lipid peroxidation level and protein carbonyl derivatives was also assessed, as well as the relationships between element levels and oxidative stress biomarkers. Trends of the main effects (i.e., the development stages and sex alone, the interaction of the sex and development stage simultaneously) on oxidative stress biomarkers, lysosomal functioning, and element contents in the muscle tissue were evaluated. The study has shown sex-related relationships between the pro- and antioxidant balance and the tissue type in the adult stage as well as modifications in the lysosomal functioning induced by long-term environmental stress associated with changing the habitats from freshwater to seawater and intense migrations. The highest level of toxic products generated in oxidative reactions and oxidative modification of proteins was noted in both the spawner stage and the kelt form. The holistic model of analysis of all parameters of antioxidant defense in all development stages and sex demonstrated the following dependencies for the level of lipid peroxidation, oxidative modification of proteins, lysosomal activities, and element contents: TBARS > OMP KD > OMP AD > TAC, AcP > NAG > LAP > AAP and Cu > Fe > Ca > Mn > Zn > Mg, respectively.

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