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Antioxidants, Volume 8, Issue 12

December 2019 - 83 articles

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Cover Story: An oxidative stress occurred during the first hours of acclimatisation of stevia plantlets to ex vitro conditions. After 2 days, DHAR was higher than MDHAR. After 7 days, plants activated the MDHAR route to recycle ascorbate, which is much more efficient energetically, and SOD and CAT activities peaked, suggesting a protection against ROS. Peroxidase showed a 2-fold increase after 2 days of acclimatization, remaining high until day 14, linked to the cell wall stiffening and the lignification processes. A progressive increase in the photochemical quenching parameters and the ETR occurred, indicating a progressive photosynthetic efficiency during this process. Antioxidant enzymes, lipid peroxidation, and chlorophyll fluorescence are proven as suitable tools for the physiological evaluation during acclimatization to ex vitro conditions. View this paper.

Articles (83)

  • Article
  • Open Access
46 Citations
9,914 Views
18 Pages
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Acute Intake of a Grape and Blueberry Polyphenol-Rich Extract Ameliorates Cognitive Performance in Healthy Young Adults During a Sustained Cognitive Effort

  • Pierre Philip,
  • Patricia Sagaspe,
  • Jacques Taillard,
  • Claire Mandon,
  • Joël Constans,
  • Line Pourtau,
  • Camille Pouchieu,
  • Donato Angelino,
  • Pedro Mena and
  • Daniela Martini
  • + 2 authors
Antioxidants2019, 8(12), 650;https://doi.org/10.3390/antiox8120650

17 December 2019

Despite an increasing level of evidence supporting the individual beneficial effect of polyphenols on cognitive performance, information related to the potential synergistic action of these phytonutrients on cognitive performance during a prolonged c...

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  • Article
  • Open Access
62 Citations
5,891 Views
17 Pages
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Characterization of Polyphenolic Compounds Extracted from Different Varieties of Almond Hulls (Prunus dulcis L.)

  • Maher Kahlaoui,
  • Stefania Borotto Dalla Vecchia,
  • Francesco Giovine,
  • Hayet Ben Haj Kbaier,
  • Nabiha Bouzouita,
  • Letricia Barbosa Pereira and
  • Giuseppe Zeppa
Antioxidants2019, 8(12), 647;https://doi.org/10.3390/antiox8120647

16 December 2019

Ultrasound-assisted extraction (UAE) was applied as a pretreatment technique to improve the recovery of polyphenols from the almond hulls of four Tunisian and three Italian almond varieties, followed by the characterization with HPLC-DAD. The operati...

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  • Review
  • Open Access
41 Citations
4,924 Views
13 Pages
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Phenolic Antioxidants in Aerial Parts of Wild Vaccinium Species: Towards Pharmaceutical and Biological Properties

  • Oana-Crina Bujor,
  • Corneliu Tanase and
  • Mona Elena Popa
Antioxidants2019, 8(12), 649;https://doi.org/10.3390/antiox8120649

16 December 2019

Phenolic compounds are a widespread group of secondary metabolites found in all plants, representing the most desirable antioxidants due to their potential to be used as additives in the food industry (inhibition of lipid oxidation), and in cosmetolo...

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  • Article
  • Open Access
14 Citations
5,798 Views
11 Pages
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Beneficial Effects of Alpha-Lipoic Acid on Hypertension, Visceral Obesity, UCP-1 Expression and Oxidative Stress in Zucker Diabetic Fatty Rats

  • Adil El Midaoui,
  • I. George Fantus,
  • Ali Ait Boughrous and
  • Réjean Couture
Antioxidants2019, 8(12), 648;https://doi.org/10.3390/antiox8120648

16 December 2019

Evidence suggests that oxidative stress plays a major role in the development of metabolic syndrome. This study aims to investigate whether α-lipoic acid (LA), a potent antioxidant, could exert beneficial outcomes in Zucker diabetic fatty (ZDF)...

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  • Article
  • Open Access
7 Citations
4,532 Views
19 Pages
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Phenolic Constituents of Chrysophyllum oliviforme L. Leaf Down-Regulate TGF-β Expression and Ameliorate CCl4-Induced Liver Fibrosis: Evidence from In Vivo and In Silico Studies

  • Seham S. El-Din El-Hawary,
  • Soheir M. El Zalabani,
  • Nabil M. Selim,
  • Marwa A. Ibrahim,
  • Fatma A. Wahba,
  • Shymaa A. El Badawy,
  • Nariman El Sayed Mahdy,
  • Aziz Yasri and
  • Mansour Sobeh
Antioxidants2019, 8(12), 646;https://doi.org/10.3390/antiox8120646

15 December 2019

The prevalence of hepatic diseases globally and in Egypt particularly necessitates an intensive search for natural hepatoprotective candidates. Despite the traditional use of Chrysophyllum oliviforme L. and C. cainito L. leaves in the treatment of ce...

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  • Review
  • Open Access
117 Citations
10,203 Views
23 Pages
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Ascorbic Acid—The Little-Known Antioxidant in Woody Plants

  • Karolina Bilska,
  • Natalia Wojciechowska,
  • Shirin Alipour and
  • Ewa Marzena Kalemba
Antioxidants2019, 8(12), 645;https://doi.org/10.3390/antiox8120645

14 December 2019

Reactive oxygen species (ROS) are constantly produced by metabolically active plant cells. The concentration of ROS may determine their role, e.g., they may participate in signal transduction or cause oxidative damage to various cellular components....

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  • Editorial
  • Open Access
5 Citations
3,463 Views
3 Pages
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Dietary Antioxidants: Micronutrients and Antinutrients in Physiology and Pathology

  • Ilaria Peluso
Antioxidants2019, 8(12), 642;https://doi.org/10.3390/antiox8120642

13 December 2019

This Special Issue aimed to clarify the distinction between micronutrients and antinutrients and their different roles in physiology and pathology, considering the European Food Safety Authority (EFSA) criteria for health claims [...]

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  • Article
  • Open Access
67 Citations
7,362 Views
13 Pages
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Effects of Very Low Calorie Ketogenic Diet on the Orexinergic System, Visceral Adipose Tissue, and ROS Production

  • Anna Valenzano,
  • Rita Polito,
  • Valentina Trimigno,
  • Antonella Di Palma,
  • Fiorenzo Moscatelli,
  • Gaetano Corso,
  • Francesco Sessa,
  • Monica Salerno,
  • Angelo Montana and
  • Nunzio Di Nunno
  • + 6 authors
Antioxidants2019, 8(12), 643;https://doi.org/10.3390/antiox8120643

13 December 2019

Background: Caloric restriction is a valid strategy to reduce the visceral adipose tissue (VAT) content in obese persons. Hypocretin-1 (orexin-A) is a neuropeptide synthesized in the lateral hypothalamus that strongly modulates food intake, thus infl...

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  • Article
  • Open Access
26 Citations
5,006 Views
12 Pages
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Protective Effects of Unsaponifiable Matter from Perilla Seed Meal on UVB-induced Damages and the Underlying Mechanisms in Human Skin Fibroblasts

  • Hana Lee,
  • Jeehye Sung,
  • Younghwa Kim,
  • Heon Sang Jeong and
  • Junsoo Lee
Antioxidants2019, 8(12), 644;https://doi.org/10.3390/antiox8120644

13 December 2019

Unsaponifiable matter (USM) from perilla seed meal contains numerous phytochemicals, including tocopherols, phytosterols, squalene, and policosanols, that exhibit antioxidant and health-promoting properties. In this study, the protective effects of U...

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  • Article
  • Open Access
23 Citations
5,796 Views
19 Pages
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Manganese Porphyrin-Based SOD Mimetics Produce Polysulfides from Hydrogen Sulfide

  • Kenneth R. Olson,
  • Yan Gao,
  • Faihaan Arif,
  • Shivali Patel,
  • Xiaotong Yuan,
  • Varun Mannam,
  • Scott Howard,
  • Ines Batinic-Haberle,
  • Jon Fukuto and
  • Magdalena Minnion
  • + 2 authors
Antioxidants2019, 8(12), 639;https://doi.org/10.3390/antiox8120639

12 December 2019

Manganese-centered porphyrins (MnPs), MnTE-2-PyP5+ (MnTE), MnTnHex-2-PyP5+ (MnTnHex), and MnTnBuOE-2-PyP5+ (MnTnBuOE) have received considerable attention because of their ability to serve as superoxide dismutase (SOD) mimetics thereby producing hydr...

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