scholarly journals Relationship Between Protein Oxidation Markers and Oxidative Stress Biomarkers

Author(s):  
Silvia Clara
Biologia ◽  
2013 ◽  
Vol 68 (4) ◽  
Author(s):  
Alexey Tinkov ◽  
Alexandr Nikonorov

AbstractThe aim of the research was to estimate the effect of different doses and combinations of iron and copper consumption with drinking water on lipid profile and oxidative stress biomarkers in albino Wistar rats serum. Rats were given drinking water containing 3 mg L−1 and 6 mg L−1 iron; copper 4.88 and 9.76 mg L−1; a mixture of 3 mg L−1 iron and 4.88 mg L−1 copper. Control group obtained pure drinking water. Total cholesterol, lipoprotein spectrum and markers of lipid and protein oxidation were analyzed. It has been seen that administration of iron in concentration of 6 mg L−1 induces lipid peroxidation and protein oxidation, while copper given in the maximal doses leads only to protein oxidation. Free radical oxidation in rats obtaining combination of iron and copper with drinking water was more expressed than in case of administration of single metals in the same doses. Consumption of maximal doses of isolated metals leads to more expressed atherogenic changes, while combination of both metals in lower doses did not affect serum lipoprotein significantly. The data obtained show that chemical interaction of iron and copper in the organism has an additive effect on some vital parameters in comparison to isolated metal administration.


2018 ◽  
Vol 9 (12) ◽  
pp. 6508-6516 ◽  
Author(s):  
Marta Esgalhado ◽  
Julie A. Kemp ◽  
Renata Azevedo ◽  
Bruna R. Paiva ◽  
Milena B. Stockler-Pinto ◽  
...  

Prebiotic-resistant starch supplementation may be a good strategy to reduce inflammation, oxidative stress and uremic toxins in CKD patients.


Chemosphere ◽  
2016 ◽  
Vol 160 ◽  
pp. 95-103 ◽  
Author(s):  
Diogo Cruz ◽  
Ângela Almeida ◽  
Vânia Calisto ◽  
Valdemar I. Esteves ◽  
Rudolf J. Schneider ◽  
...  

2018 ◽  
Vol 19 (11) ◽  
pp. 3349 ◽  
Author(s):  
Jin Namkoong ◽  
Dale Kern ◽  
Helen Knaggs

Since the skin is the major protective barrier of the body, it is affected by intrinsic and extrinsic factors. Environmental influences such as ultraviolet (UV) irradiation, pollution or dry/cold air are involved in the generation of radical oxygen species (ROS) and impact skin aging and dermal health. Assessment of human skin gene expression and other biomarkers including epigenetic factors are used to evaluate the biological/molecular activities of key compounds in cosmetic formulas. The objective of this study was to quantify human gene expression when epidermal full-thickness skin equivalents were exposed to: (a) a mixture of betaine, pentylene glycol, Saccharomyces cerevisiae and Rhodiola rosea root extract (BlendE) for antioxidant, skin barrier function and oxidative stress (with hydrogen peroxide challenge); and (b) a mixture of Narcissus tazetta bulb extract and Schisandra chinensis fruit extract (BlendIP) for various biomarkers and microRNA analysis. For BlendE, several antioxidants, protective oxidative stress biomarkers and many skin barrier function parameters were significantly increased. When BlendE was evaluated, the negative impact of the hydrogen peroxide was significantly reduced for the matrix metalloproteinases (MMP 3 and MMP 12), the skin aging and oxidative stress biomarkers, namely FBN2, ANXA1 and HGF. When BlendIP was tested for cell proliferation and dermal structural components to enhance the integrity of the skin around the eyes: 8 growth factors, 7 signaling, 7 structural/barrier function and 7 oxidative stress biomarkers were significantly increased. Finally, when BlendIP was tested via real-time RT-PCR for microRNA expression: miR-146a, miR-22, miR155, miR16 and miR21 were all significantly increased over control levels. Therefore, human skin gene expression studies are important tools to assess active ingredient compounds such as plant extract blends to advance dermal hypotheses toward validating cosmetic formulations with botanical molecules.


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