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Antioxidants, Volume 10, Issue 3

March 2021 - 166 articles

Cover Story: In the current study, we investigated exercise-induced atrial alterations using a small animal model, where balanced swim training protocol resulted in left ventricular physiological hypertrophy and functional improvement. A detailed investigation of atrial function and structure showed physiological myocardial hypertrophy with increased capillary density, lack of pathological processes, such as profibrotic and inflammatory response, and a balance between oxidative stress and antioxidant mechanisms. A decreased expression of potassium channels and connexin-43 might contribute to prolonged atrial effective refractory period. The lack of arrhythmia inducibility suggests benign electrical remodeling. Our results point out that a balanced intense training program—without excessive exercise episodes or usage of performance-enhancing drugs—is associated with benign, physiological atrial remodeling. View this paper
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Articles (166)

  • Article
  • Open Access
9 Citations
3,667 Views
18 Pages

Cyclooxygenase-2 Glycosylation Is Affected by Peroxynitrite in Endothelial Cells: Impact on Enzyme Activity and Degradation

  • Sonia Eligini,
  • Susanna Colli,
  • Aida Habib,
  • Giancarlo Aldini,
  • Alessandra Altomare and
  • Cristina Banfi

The exposure of human endothelial cells to 3-morpholinosydnonimine (SIN-1) induced the expression of cyclooxygenase-2 (COX-2) in a dose- and time-dependent manner. Interestingly, after a prolonged incubation (>8 h) several proteoforms were visuali...

  • Article
  • Open Access
14 Citations
4,075 Views
16 Pages

Protein Disulphide Isomerase and NADPH Oxidase 1 Cooperate to Control Platelet Function and Are Associated with Cardiometabolic Disease Risk Factors

  • Renato Simões Gaspar,
  • Tanya Sage,
  • Gemma Little,
  • Neline Kriek,
  • Giordano Pula and
  • Jonathan M. Gibbins

Background: Protein disulphide isomerase (PDI) and NADPH oxidase 1 (Nox-1) regulate platelet function and reactive oxygen species (ROS) generation, suggesting potentially interdependent roles. Increased platelet reactivity and ROS production have bee...

  • Review
  • Open Access
27 Citations
6,091 Views
23 Pages

Post-translational modifications regulate the structure and function of proteins that can result in changes to the activity of different pathways. These include modifications altering the redox state of thiol groups on protein cysteine residues, whic...

  • Article
  • Open Access
32 Citations
4,603 Views
20 Pages

Comprehensive Phenolic and Free Amino Acid Analysis of Rosemary Infusions: Influence on the Antioxidant Potential

  • Juliana A. Barreto Peixoto,
  • Gerardo Álvarez-Rivera,
  • Rita C. Alves,
  • Anabela S. G. Costa,
  • Susana Machado,
  • Alejandro Cifuentes,
  • Elena Ibáñez and
  • M. Beatriz P. P. Oliveira

The phenolics profile, free amino acids composition, and antioxidant potential of rosemary infusions were studied. Forty-four compounds belonging to nine different groups (hydroxybenzoic acids, hydroxycinnamic acids, flavan-3-ols, flavanones, flavone...

  • Article
  • Open Access
17 Citations
4,736 Views
18 Pages

Characterization of NADPH Oxidase Expression and Activity in Acute Myeloid Leukemia Cell Lines: A Correlation with the Differentiation Status

  • Hassan Dakik,
  • Maya El Dor,
  • Joan Leclerc,
  • Farah Kouzi,
  • Ali Nehme,
  • Margaux Deynoux,
  • Christelle Debeissat,
  • Georges Khamis,
  • Elfi Ducrocq and
  • Aida Ibrik
  • + 7 authors

In acute myeloid leukemia (AML), a low level of reactive oxygen species (ROS) is associated with leukemic stem cell (LSC) quiescence, whereas a high level promotes blast proliferation. ROS homeostasis relies on a tightly-regulated balance between the...

  • Article
  • Open Access
8 Citations
3,656 Views
14 Pages

The aim of the study was to evaluate the impact of early pregnancy and exposure to tobacco smoke on antioxidant status and copper, zinc, and cadmium concentrations in the blood of non-smoking and smoking, as well as non-pregnant or pregnant women. Th...

  • Article
  • Open Access
16 Citations
4,215 Views
14 Pages

Aesculetin Inhibits Airway Thickening and Mucus Overproduction Induced by Urban Particulate Matter through Blocking Inflammation and Oxidative Stress Involving TLR4 and EGFR

  • Su-Yeon Oh,
  • Yun-Ho Kim,
  • Min-Kyung Kang,
  • Eun-Jung Lee,
  • Dong-Yeon Kim,
  • Hyeongjoo Oh,
  • Soo-Il Kim,
  • Woojin Na,
  • Il-Jun Kang and
  • Young-Hee Kang

Particulate matter (PM) is a mixture of solid and liquid air pollutant particles suspended in the air, varying in composition, size, and physical features. PM is the most harmful form of air pollution due to its ability to penetrate deep into the lun...

  • Article
  • Open Access
10 Citations
5,987 Views
14 Pages

Italian gastronomy experiences have ever-enhancing fame around the world. It is due to the linkage between taste and salubriousness commonly related to Mediterranean foods. The market proposes many types of pizza to suit all palates. The antioxidant...

  • Review
  • Open Access
28 Citations
5,072 Views
21 Pages

Implication of Dietary Iron-Chelating Bioactive Compounds in Molecular Mechanisms of Oxidative Stress-Induced Cell Ageing

  • Alexandra Barbouti,
  • Nefeli Lagopati,
  • Dimitris Veroutis,
  • Vlasios Goulas,
  • Konstantinos Evangelou,
  • Panagiotis Kanavaros,
  • Vassilis G. Gorgoulis and
  • Dimitrios Galaris

One of the prevailing perceptions regarding the ageing of cells and organisms is the intracellular gradual accumulation of oxidatively damaged macromolecules, leading to the decline of cell and organ function (free radical theory of ageing). This che...

  • Review
  • Open Access
80 Citations
8,704 Views
17 Pages

Pterostilbene in Cancer Therapy

  • Elena Obrador,
  • Rosario Salvador-Palmer,
  • Ali Jihad-Jebbar,
  • Rafael López-Blanch,
  • Thanh H. Dellinger,
  • Ryan W. Dellinger and
  • José M. Estrela

Natural polyphenols are organic chemicals which contain phenol units in their structures and possess antitumor properties. However, a key problem is their short half-life and low bioavailability under in vivo conditions. Pterostilbene (3,5-dimethoxy-...

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Antioxidants - ISSN 2076-3921