Modulation of Fibrosis in Systemic Sclerosis by Nitric Oxide and Antioxidants by Audrey Dooley, K. Richard Bruckdorfer, David J. Abraham

“…Evidence suggests that the free radical nitric oxide (NO), a key mediator of oxidative stress, can profoundly influence the early microvasculopathy, and possibly the ensuing fibrogenic response. …”
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In vitro Superoxide Production by Peripheral Neutrophils from Patients with Inflammatory Bowel Disease by O. H. Nielsen, D. Berild, I. Ahnfelt-Rønne

“…Activated polymorphonuclear leucocytes, which are accumulated in inflammatory lesions of inflammatory bowel disease, produce tissue destructive, oxygen derived free radicals and other inflammatory mediators. The PMN superoxide production elicited by formyl-methionyl-leucyl-phenylalanine or the complement split product 5a were compared in IBD and healthy volunteers. …”
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Mechanism of Oxidation of L-Histidine by Heptavalent Manganese in Alkaline Medium by Timy P. Jose, Sharanappa T. Nandibewoor, Suresh M. Tuwar

“…A mechanism involving the free radical has been proposed. In composite equilibrium step L-histidine binds to MnO4- species to form a complex(C). …”
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Melatonin in Hypoxic-Ischemic Brain Injury in Term and Preterm Babies by Justyna Paprocka, Marek Kijonka, Beata Rzepka, Maria Sokół

“…Melatonin may serve as a potential therapeutic free radical scavenger and broad-spectrum antioxidant. …”
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Angiotensin-I-Converting Enzyme Inhibitory and Antioxidant Activities of Protein Hydrolysate from Muscle of Barbel (Barbus callensis) by Assaad Sila, Anissa Haddar, Oscar Martinez-Alvarez, Ali Bougatef

“…These results obtained by in vitro systems obviously established the antioxidant potency of barbel hydrolysate to donate electron or hydrogen atom to reduce the free radical. Furthermore, these bioactive substances can be exploited into functional foods or used as source of nutraceuticals.…”
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Antibiotic residuals removal via novel fabricated hydrogel from 2-hydroxyethyl methacrylate and sodium methacrylate by Nahit Aktaş, Sinan Akgöl, Urmat Zholdoshbek Uulu

“…[p(HEMA-SMA)] co-polymers were synthesized by the free radical photopolymerization method. Synthesized hydrogels were characterized by different methods such as Fourier-transform infrared spectroscopy (FTIR), elemental and scanning electron microscope (SEM), and surface area calculations. …”
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Fyn Signaling in Ischemia-Reperfusion Injury: Potential and Therapeutic Implications by Fang Du, Tao Tang, Qingzhu Li, Jiaxin Liu

“…In recent years, more and more evidence suggests that Fyn may be closely related to cerebral ischemia-reperfusion, including energy metabolism disorders, excitatory neurotoxicity, intracellular calcium homeostasis, free radical production, and the activation of apoptotic genes. …”
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Metabolomics and Transcriptomics Reveal the Effects of Different Fermentation Times on Antioxidant Activities of <i>Ophiocordyceps sinensis</i> by Min He, Tao Wang, Chuyu Tang, Mengjun Xiao, Xiaojian Pu, Jianzhao Qi, Yuling Li, Xiuzhang Li

“…The antioxidant results of <i>O. sinensis</i> indicate that the ferric ion-reducing antioxidant power (FRAP), antioxidant capacity (2.74 ± 0.12 μmol Trolox/g), 2,2-diphenyl-1-picrylhydrazyl (DPPH•) free radical scavenging rate (60.21 ± 0.51%), and the hydroxyl free radical scavenging rate (91.83 ± 0.68%) reached a maximum on day 30. …”
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Efek Pemberian Vitamin C Terhadap Aktifitas Katalase Hati Tikus Galur Wistar yang Terpapar Ion Pb by Elmatris Sy, Husnil Kadri, Eti Yerizel

“…Vitamin C is a non-enzymatic antioxidants, natural compounds that are strong antioxidants and free radical binding. This study to determine the Effect of Vitamin C to catalase activity of rat-wistar strain-liver. …”
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Antioxidant activity and phytochemical profiling of peaches, Arabica coffee, and their combination by Dhea Angela Putri, Himmi Marsiati

“…Antioxidant compounds scavenge unstable free radical reactions and are abundant in certain plants. …”
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Activity-Guided Isolation of Antioxidant Compounds from Andrographis stenophylla Leaf by Neelaveni Thangavel, Jayanta Kumar Gupta

“…Reductive ability and free radical scavenging activity of the extracts were also investigated. …”
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Exertion in Kangoo Jumps Aerobic: Evaluation and Interpretation Using Spectroscopic Technique Determinations by Cristina Popa, Mihai Patachia, Stefan Banita, Dan Constantin Dumitras

“…Because it is not possible to directly measure free radicals in the body, we approach that by measuring the by-products (breath ethylene) that result from free radical reactions. …”
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Inverse Emulsion Polymerization for the Synthesis of High Molecular Weight Polyacrylamide and Its Application as Sand Stabilizer by Mahmoud A. Mohsin, Nuha F. Attia

“…Polyacrylamides constitute a class of polymers that can entirely dissolve or swell in water to form a solution or hydrogel, respectively. Free radical polymerization of acrylamide monomer, using both solution and inverse emulsion polymerization, was applied to produce polyacrylamide with various molecular weights. …”
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Radical-Scavenging Effect, Ferric Reducing Ability and Phytochemical Analysis of Urtica urens (L.) and Mercurialis annua (L.) by Doukkali Zouhra, Meryem El Jemli, Abdelhakim Bouyahya, Khang Wen Goh, Ganesh Sritheran Paneerselvam, Belatar Bahia, Yahia Cherrah, Katim Alaoui

“…We examined the antioxidant activity of the methanolic and aqueous extracts by several in vitro systems of the assay, namely the ferric reducing/antioxidant power (FRAP) assay, the DPPH radical-scavenging activity, and the ABTS free radical-scavenging capacity. In addition, all active extracts were subjected to phytochemical screening to determine the key groups of chemicals implicated in their therapeutic activity. …”
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A Review on the Antimutagenic and Anticancer Effects of Cysteamine by Chun-Man Lee

“…Although the mechanisms of action are not fully understood, possible explanations are (i) free radical scavenging, (ii) alteration of the tumor cell proliferation by affecting nucleic acid and protein synthesis or inhibition of DNA synthesis, and (iii) hormone regulation. …”
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Phytochemicals, Nutritional and Elemental Composition of different plant parts of Rinorea oblongifolia (C.H Wright) C. Marquand ex Chipp by Adeniyi Ohunayo, Olusola Elekofehinti, Muftau Kolawole Oladunmoye, Anthony Kayode Onifade

“… Antioxidants are essential in managing chronic diseases by neutralizing free radicals and reducing oxidative stress. Rinorea oblongifolia, a medicinal plant, contains a rich profile of phytochemicals and minerals, adding to its therapeutic potential. …”
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Evaluation of the Antioxidant Activity of Coreopsis Tinctoria Nuff. and Optimisation of Isolation by Response Surface Methodology by Lan Shumin, Lin Jingming, Zheng Ni

“…We may assume that CTFT possess antioxidant and free radical scavenging potentials.…”
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Age-Dependent Paraoxonase 1 (PON1) Activity and LDL Oxidation in Wistar Rats during Their Entire Lifespan by Dileep Kumar, Syed Ibrahim Rizvi

“…The reduction of PON1 and free radical scavenging activity with age could have a considerable impact on the increased incidence of atherosclerosis with age. …”
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Diet and Skin Cancer: The Potential Role of Dietary Antioxidants in Nonmelanoma Skin Cancer Prevention by Rajani Katta, Danielle Nicole Brown

“…Dietary AOs may prevent free radical-mediated DNA damage and tumorigenesis secondary to UV radiation. …”
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Effect of Withania Somnifera Root Powder on the Levels of Circulatory Lipid Peroxidation and Liver Marker Enzymes in Chronic Hyperammonemia by B. Harikrishnan, P. Subramanian, S. Subash

“…Our results indicate that W.somnifera offers hepatoprotection by influencing the levels of lipid peroxidation products and liver markers in experimental hyperammonemia and this could be due to (i) the presence of alkaloids, withanolids and flavonoids, (ii) normalizing the levels of urea and urea related compounds, (iii) its free radical scavenging property and (iv) its antioxidant property. …”
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