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Antioxidants, Volume 7, Issue 3

2018 March - 11 articles

Cover Story: Lipophilic superoxide dismutase mimetics are effective mitigators of many disease processes that involve oxidative injury. New data presented here demonstrate the development of a nonhuman primate model of radiation-induced lung injury, with high genetic and phenotypic similarity to human beings. The findings indicate the potential of MnTnHex-2-PyP5+ to mitigate radiation-induced lung injury. Both inflammation and pro-fibrotic mechanisms are involved, and further studies are needed to understand and maximize the mitigating effects. View this paper
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Articles (11)

  • Article
  • Open Access
12 Citations
7,177 Views
12 Pages

Microbial Biotransformation of a Polyphenol-Rich Potato Extract Affects Antioxidant Capacity in a Simulated Gastrointestinal Model

  • Joelle Khairallah,
  • Shima Sadeghi Ekbatan,
  • Kebba Sabally,
  • Michèle M. Iskandar and ,
  • Raza Hussain,
  • Atef Nassar,
  • Lekha Sleno,
  • Laetitia Rodes,
  • Satya Prakash and
  • Stan Kubow
  • + 6 authors+ 1 author

A multistage human gastrointestinal model was used to digest a polyphenol-rich potato extract containing chlorogenic acid, caffeic acid, ferulic acid, and rutin as the primary polyphenols, to assess for their microbial biotransformation and to measur...

(This article belongs to the Special Issue Dietary Antioxidants and Prevention of Non-Communicable Diseases)
  • Article
  • Open Access
18 Citations
6,796 Views
16 Pages

Redistribution of Extracellular Superoxide Dismutase Causes Neonatal Pulmonary Vascular Remodeling and PH but Protects Against Experimental Bronchopulmonary Dysplasia

  • Laurie G. Sherlock,
  • Ashley Trumpie,
  • Laura Hernandez-Lagunas,
  • Sarah McKenna and ,
  • Susan Fisher,
  • Russell Bowler,
  • Clyde J. Wright,
  • Cassidy Delaney and
  • Eva Nozik-Grayck
  • + 4 authors+ 0 author

Background: A naturally occurring single nucleotide polymorphism (SNP), (R213G), in extracellular superoxide dismutase (SOD3), decreases SOD3 matrix binding affinity. Humans and mature mice expressing the R213G SNP exhibit increased cardiovascular di...

(This article belongs to the Special Issue Superoxide Dismutase (SOD) Enzymes, Mimetics and Oxygen Radicals)
  • Review
  • Open Access
121 Citations
27,047 Views
14 Pages

Influence of Vitamin C on Lymphocytes: An Overview

  • Gwendolyn N. Y. Van Gorkom,
  • Roel G. J. Klein Wolterink,
  • Catharina H. M. J. Van Elssen,
  • Lotte Wieten and ,
  • Wilfred T. V. Germeraad and
  • Gerard M. J. Bos
  • + 1 author+ 0 author

Vitamin C or ascorbic acid (AA) is implicated in many biological processes and has been proposed as a supplement for various conditions, including cancer. In this review, we discuss the effects of AA on the development and function of lymphocytes. Th...

(This article belongs to the Special Issue Vitamin C: Current Concepts in Human Physiology)
  • Article
  • Open Access
37 Citations
7,125 Views
17 Pages

Post-Irradiation Treatment with a Superoxide Dismutase Mimic, MnTnHex-2-PyP5+, Mitigates Radiation Injury in the Lungs of Non-Human Primates after Whole-Thorax Exposure to Ionizing Radiation

  • John Mark Cline,
  • Greg Dugan,
  • John Daniel Bourland,
  • Donna L. Perry and ,
  • Joel D. Stitzel,
  • Ashley A. Weaver,
  • Chen Jiang,
  • Artak Tovmasyan,
  • Kouros Owzar and
  • Zeljko Vujaskovic
  • + 7 authors+ 2 authors

Radiation injury to the lung is the result of acute and chronic free radical formation, and there are currently few effective means of mitigating such injury. Studies in rodents indicate that superoxide dismutase mimetics may be effective in this reg...

(This article belongs to the Special Issue Superoxide Dismutase (SOD) Enzymes, Mimetics and Oxygen Radicals)
  • Article
  • Open Access
72 Citations
9,008 Views
17 Pages

Systems-Level Feedbacks of NRF2 Controlling Autophagy upon Oxidative Stress Response

  • Orsolya Kapuy,
  • Diána Papp,
  • Tibor Vellai,
  • Gábor Bánhegyi and
  • Tamás Korcsmáros

Although the primary role of autophagy-dependent cellular self-eating is cytoprotective upon various stress events (such as starvation, oxidative stress, and high temperatures), sustained autophagy might lead to cell death. A transcription factor cal...

(This article belongs to the Special Issue Oxidative Stress and Cancer: The Nrf2 Enigma)
  • Review
  • Open Access
29 Citations
7,585 Views
13 Pages

Premature neonates are in an energy deficient state due to (1) oxygen desaturation and hypoxia events, (2) painful and stressful stimuli, (3) illness, and (4) neurodevelopmental energy requirements. Failure to correct energy deficiency in premature i...

(This article belongs to the Special Issue Antioxidants: Infant Nutrition)
  • Article
  • Open Access
20 Citations
5,793 Views
20 Pages

Synthetic Lignan Secoisolariciresinol Diglucoside (LGM2605) Reduces Asbestos-Induced Cytotoxicity in an Nrf2-Dependent and -Independent Manner

  • Ralph A. Pietrofesa,
  • Shampa Chatterjee,
  • Kyewon Park,
  • Evguenia Arguiri and ,
  • Steven M. Albelda and
  • Melpo Christofidou-Solomidou
  • + 1 author+ 0 author

Asbestos exposure triggers inflammatory processes associated with oxidative stress and tissue damage linked to malignancy. LGM2605 is the synthetic lignan secoisolariciresinol diglucoside (SDG) with free radical scavenging, antioxidant, and anti-infl...

(This article belongs to the Special Issue Oxidative Stress and Cancer: The Nrf2 Enigma)
  • Review
  • Open Access
87 Citations
11,524 Views
12 Pages

Selenium and Selenoproteins in Gut Inflammation—A Review

  • Shaneice K. Nettleford and
  • K. Sandeep Prabhu

Inflammatory bowel disease (IBD), characterized by severe flares and remissions, is a debilitating condition. While the etiology is unknown, many immune cells, such as macrophages, T cells and innate lymphoid cells, are implicated in the pathogenesis...

(This article belongs to the Special Issue Selenium and Selenoproteins for Optimal Health)
  • Article
  • Open Access
62 Citations
10,974 Views
12 Pages

Quantification of Phenolic Compounds and In Vitro Radical Scavenging Abilities with Leaf Extracts from Two Varieties of Psidium guajava L.

  • Julio César Camarena-Tello,
  • Héctor Eduardo Martínez-Flores,
  • Ma. Guadalupe Garnica-Romo,
  • José Saúl Padilla-Ramírez and ,
  • Alfredo Saavedra-Molina,
  • Osvaldo Alvarez-Cortes,
  • María Carmen Bartolomé-Camacho and
  • José Octavio Rodiles-López
  • + 3 authors+ 0 author

27 February 2018

Guava leaf (Psidium guajava L.) extracts are used in both traditional medicine and the pharmaceutical industry. The antioxidant compounds in P. guajava leaves can have positive effects including anti-inflammatory, anti-hyperglycemic, hepatoprotective...

  • Article
  • Open Access
40 Citations
12,110 Views
32 Pages

27 February 2018

The thermodynamic parameters Eact, ΔH≠, ΔS≠, and ΔG≠ for various processes involving antioxidants were calculated using literature kinetic data (k, T). The ΔG≠ values of the antioxidants’ processes vary in the range 91.27–116.46 kJmol−1 at 310 K. The...

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Antioxidants - ISSN 2076-3921