Results 131 to 140 of about 1,342,970 (430)

Free radicals, natural antioxidants, and their reaction mechanisms

, 2015
The normal biochemical reactions in our body, increased exposure to the environment, and higher levels of dietary xenobiotic's result in the generation of reactive oxygen species (ROS) and reactive nitrogen species (RNS). The ROS and RNS create oxidative
S. B. Nimse, D. Pal
semanticscholar   +1 more source

Natural Antioxidants in Foods and Medicinal Plants: Extraction, Assessment and Resources

International Journal of Molecular Sciences, 2017
Natural antioxidants are widely distributed in food and medicinal plants. These natural antioxidants, especially polyphenols and carotenoids, exhibit a wide range of biological effects, including anti-inflammatory, anti-aging, anti-atherosclerosis and ...
Dong-ping Xu, Ya Li, Xiao Meng, Tong Zhou, Yue Zhou, Jie Zheng, Jiao-Jiao Zhang, Huabin Li   +7 more
semanticscholar   +1 more source

The Aging Substantia Nigra is Characterized by ROS Accumulation Potentially Resulting in Increased Neuroinflammation and Cytoskeletal Remodeling

Advanced Biology, EarlyView.
Definition of study groups, including young individuals (n = 7 mean age: 28.7 years), middle aged individuals (n = 14 mean age: 62.3 years) and elderly individuals (n = 14 mean age: 83.9 years). Condensed workflow including sample preparation (sample lysis and tryptic digestion), mass spectrometric measurements and subsequent data and statistical ...
Britta Eggers, Simone Steinbach, Isabel Gil Aldea, Sharon Keers, Mariana Molina, Lea T. Grinberg, Helmut Heinsen, Renata E. Paraizo Leite, Johannes Attems, Caroline May, Katrin Marcus   +10 more
wiley   +1 more source

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

, 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

The Role of Oxidative Stress and Antioxidants in Liver Diseases

International Journal of Molecular Sciences, 2015
A complex antioxidant system has been developed in mammals to relieve oxidative stress. However, excessive reactive species derived from oxygen and nitrogen may still lead to oxidative damage to tissue and organs.
Sha Li, H. Tan, Ning Wang, Zhangjin Zhang, L. Lao, C. Wong, Yibin Feng   +6 more
semanticscholar   +1 more source

Smart Rubber Extrusion Line Combining Multiple Sensor Techniques for AI‐Based Process Control

Advanced Engineering Materials, EarlyView.
This publication presents a digitalization approach for a laboratory rubber extrusion line, employing innovative measurement methods and artificial intelligence (AI)‐based process control. The results demonstrate that the measurement systems are capable of detecting changes in the process and extrudate quality.
Alexander Aschemann, Paul‐Felix Hagen, Simon Albers, Robin Rofallski, Sven Schwabe, Mohammed Dagher, Marco Lukas, Sebastian Leineweber, Benjamin Klie, Patrick Schneider, Hagen Bossemeyer, Lennart Hinz, Markus Kästner, Birger Reitz, Eduard Reithmeier, Thomas Luhmann, Hainer Wackerbarth, Ludger Overmeyer, Ulrich Giese   +18 more
wiley   +1 more source

Acute Effects of Photobiomodulation Therapy Combined with Static Magnetic Field in C2C12 Muscle Cells Exposed and Not Exposed to H₂O₂

Applied Sciences
Photobiomodulation (PBM) has been applied in biomedical technology to improve cellular responses. Specifically in sports medicine, it is used to accelerate metabolic and structural repair and adaptation in skeletal muscle under stress overload. Currently,
Marcos Vinicius Ferlito, João Vitor Ferlito, Fernando Joel Scariot, Mirian Salvador, Ernesto Cesar Pinto Leal-Junior, Thiago De Marchi, Catia Santos Branco   +6 more
doaj   +1 more source

Free Radicals, Antioxidants in Disease and Health

International Journal of Biomedical Science, 2008
Free radicals and oxidants play a dual role as both toxic and beneficial compounds, since they can be either harmful or helpful to the body. They are produced either from normal cell metabolisms in situ or from external sources (pollution, cigarette ...
Lien Ai Pham-Huy, Hua-Dong He, C. Pham-Huy   +2 more
semanticscholar   +1 more source

Direct Ink Writing of Conductive Hydrogels

Advanced Functional Materials, EarlyView.
This review examines the use of direct ink writing (DIW) for fabricating conductive hydrogels with customizable 3D structures. It outlines the rheological requirements for successful DIW, followed by an exploration of the materials and ink formulations used to impart electronic and/or ionic conductivity to hydrogels while maintaining printability ...
Monica Ho, Aline Braz Ramirez, Negar Akbarnia, Eric Croiset, Elisabeth Prince, Gerald G. Fuller, Milad Kamkar   +6 more
wiley   +1 more source

5-Aryl-2-(3,5-dialkyl-4-hydroxyphenyl)-4,4-dimethyl-4H-imidazole 3-Oxides and Their Redox Species: How Antioxidant Activity of 1-Hydroxy-2,5-dihydro-1H-imidazoles Correlates with the Stability of Hybrid Phenoxyl–Nitroxides

Molecules, 2020
Cyclic nitrones of the imidazole series, containing a sterically hindered phenol group, are promising objects for studying antioxidant activity; on the other hand, they can form persistent hybrid phenoxyl–nitroxyl radicals (HPNs) upon oxidation.
Svetlana A. Amitina, Elena V. Zaytseva, Natalya A. Dmitrieva, Alyona V. Lomanovich, Natalya V. Kandalintseva, Yury A. Ten, Ilya A. Artamonov, Alexander F. Markov, Dmitrii G. Mazhukin   +8 more
doaj   +1 more source