Results 31 to 40 of about 5,663,581 (403)

Free radicals, antioxidants and functional foods: Impact on human health

open access: yesPharmacognosy Reviews, 2010
In recent years, there has been a great deal of attention toward the field of free radical chemistry. Free radicals reactive oxygen species and reactive nitrogen species are generated by our body by various endogenous systems, exposure to different ...
Vijaya Lobo   +3 more
semanticscholar   +1 more source

Polyphenolic Composition and Antioxidant Activity (ORAC, EPR and Cellular) of Different Extracts of Argylia radiata Vitroplants and Natural Roots

open access: yesMolecules, 2022
Plant biochemistry studies have increased in recent years due to their potential to improve human health. Argylia radiata is an extremophile plant with an interesting polyphenolic profile.
Ady Giordano   +6 more
doaj   +1 more source

Balur and Improving Quality of Life [PDF]

open access: yesJournal of Tropical Life Science, 2016
Balur treatment aimed to leach free radicals overwhelmingly produced in unhealthy body with rubbed over the human body. In Balur used some amino acid, bawang sabrang (Eleutherine palmifolia (L.) Merr), kopi balur (Mixed Coffea arabica L.
Gatra Ervi Jayanti, Saraswati Subagjo
doaj  

A possible role for selenoprotein glutathione peroxidase (GPx1) and thioredoxin reductases (TrxR1) in thyroid cancer. Our experience in thyroid surgery [PDF]

open access: yes, 2018
Background: Oxidative stress is responsible for some alterations in the chemical structure and, consequently, in the function of proteins, lipids, and DNA.
DE LUCA, Alessandro   +6 more
core   +2 more sources

Reactive Oxygen Species (ROS) Metabolism and Nitric Oxide (NO) Content in Roots and Shoots of Rice (Oryza sativa L.) Plants under Arsenic-Induced Stress

open access: yesAgronomy, 2020
Arsenic (As) is a highly toxic metalloid for all forms of life including plants. Rice is the main food source for different countries worldwide, although it can take up high amounts of As in comparison with other crops, showing toxic profiles such as ...
Ernestina Solórzano   +3 more
doaj   +1 more source

Assay of the antioxidant capacity of foods using an iron(II)-catalysed lipid peroxidation model for greater nutritional relevance [PDF]

open access: yes, 2010
The formation of free radicals by the iron-catalysed Fenton reaction is a major cause of oxidative damage in the body. Here a common assay of antioxidant capacity, inhibition of the β-carotene-linoleic acid model of lipid peroxidation, has been modified ...
Brangoulo, Helene L., Molan, Peter C.
core   +2 more sources

Detection of reactive oxygen and nitrogen species by electron paramagnetic resonance (EPR) technique [PDF]

open access: yes, 2017
During the last decade there has been growing interest in physical-chemical oxidation processes and the behavior of free radicals in living systems. Radicals are known as intermediate species in a variety of biochemical reactions.
Gurer-Orhan, H., Saso, L., Suzen, S.
core   +2 more sources

Free Radical Chemistry of Phosphasilenes [PDF]

open access: yesAngewandte Chemie International Edition, 2020
AbstractUnderstanding the characteristics of radicals formed from silicon‐containing heavy analogues of alkenes is of great importance for their application in radical polymerization. Steric and electronic substituent effects in compounds such as phosphasilenes not only stabilize the Si=P double bond, but also influence the structure and species of the
Yannic Heider   +10 more
openaire   +4 more sources

Screening of Natural Stilbene Oligomers from Vitis vinifera for Anticancer Activity on Human Hepatocellular Carcinoma Cells

open access: yesAntioxidants, 2020
The characterization of bioactive resveratrol oligomers extracted from Vitis vinifera canes has been recently reported. Here, we screened six of these compounds (ampelopsin A, trans-ε-viniferin, hopeaphenol, isohopeaphenol, R2-viniferin, and R-viniferin)
Iris Aja   +5 more
doaj   +1 more source

Impact of Nitric Oxide (NO) on the ROS Metabolism of Peroxisomes

open access: yesPlants, 2019
Nitric oxide (NO) is a gaseous free radical endogenously generated in plant cells. Peroxisomes are cell organelles characterized by an active metabolism of reactive oxygen species (ROS) and are also one of the main cellular sites of NO production in ...
Francisco J. Corpas   +2 more
doaj   +1 more source

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