Science topic

Antioxidants - Science topic

Naturally occurring or synthetic substances that inhibit or retard the oxidation of a substance to which it is added. They counteract the harmful and damaging effects of oxidation in animal tissues.
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Publications related to Antioxidants (10,000)
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Dear Colleagues, We invite you to submit original research papers and review articles concerning different aspects of the role of melatonin in animal reproduction using-omic technologies in different animal species. Melatonin is a pleiotropic molecule that regulates various processes. With respect to reproduction, melatonin is involved in follicula...
Article
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This study carried out a bibliometric analysis centered on Callistemon research, spanning five decades, disclosing their trend and limitations. Published works related to Callistemon between 1966 and 2020 were retrieved from Web of Science (WoS) and SCOPUS databases using the search term Callistemon. A total of 239 documents comprising 237 research...
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High Fischer ratio oligopeptides (HFROs) are a group of oligopeptides containing high levels of branched-chain amino acids (BCAA) and low levels of aromatic amino acids (AAA). HFROs have received a lot of attention as they are believed to have significant physiological activities, including antioxidant, liver damage repair, anti-fatigue, anti-tumor...
Article
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In this study, 3′,3′,4′,4′,5′,5′,6′,6′,6′-nonafluoro-hexyloxy group substituted metal-free and metallo-phthalocyanines have been synthesized. The new compounds have been characterized by a combination of several spectroscopic techniques. Using 1,1-diphenyl-2-picrylhydrazine (DPPH), OH radical scavenging, and reducing power tests, the antioxidant pr...
Research Proposal
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Submit a paper into Special Issue of Foods: Studies of Antioxidant and Antimicrobial Properties of Food Bioactive Compounds Link: https://www.mdpi.com/journal/foods/special_issues/F34JY2T7KR Deadline for manuscript submissions: 31 December 2023
Article
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Natural carotenoids are secondary metabolites that exhibit antioxidant, anti-inflammatory, and anti-cancer properties. These types of compounds are highly demanded by pharmaceutical, cosmetic, nutraceutical, and food industries, leading to the search for new natural sources of carotenoids. In recent years, the production of carotenoids from bacteri...
Article
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The potentiometric assay for determining the antioxidant activity of ascorbic acid has been developed and validated according to the following parameters: specificity, linearity, accuracy, repeatability, intermediate precision. The linearity was in the concentration range of 0.002-0.02 mol L-1 (r 2 = 0.9993). The percentage of recovery was found to...
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Radiation, ionizing or non-ionizing radiation affects living forms in a variety of ways; it has helped life forms evolve, provided a source of energy and is an invaluable tool in modern medicine while its inadvertent use results in serious radiation induced damages For exploiting the complete beneficial use of radiation, the risks of radiation expo...
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A grapevine shoot extract (GSE) was obtained using ultrasound-assisted extraction and characterized. The main phenolic constituents were identified as stilbenoids. Among them, trans-resveratrol and trans-ε-viniferin stood out. The GSE was administered to an isoproterenol-induced myocardial injury animal model. The extract alleviated the associated...
Article
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Rheumatoid arthritis is characterized by a burst of inflammation, the destruction of cartilage and the abundant release of inflammatory factors such as IL-1β. Thus, the effect of IL-1β on cartilage was examined in this study. IL-1β could cause lipid peroxidation and disturbances in iron metabolism by increasing the expression of NCOA4 and decreasin...
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As a traditional Chinese medicine, Angelica dahurica has significant medicinal and nutritional value. To optimize the extraction of flavonoids from Angelica dahurica and enhance its medicinal value, this study was conducted to optimize the process using response surface methodology and investigated the effects of ultrasonication time, ethanol conce...
Article
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Cardiac remodeling is defined as molecular, cellular, and interstitial changes that manifest clinically as alterations in the size, shape, and function of the heart. Despite the pharmacological approaches, cardiac remodeling-related mortality rates remain high. Therefore, other therapeutic options are being increasingly studied. This review highlig...
Article
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The aim of this article is to provide an overview of the potential advantages and drawbacks of nanocellulose and metal oxide-based composites in food packaging. These materials offer improved mechanical and barrier properties, as well as antioxidant and antimicrobial benefits that extend the shelf life of food products. Nano-composite structures pr...
Article
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Purpose Chronic inflammation in the liver is a key trigger for liver injury and fibrosis in various liver diseases. Given the anti-inflammatory and antioxidant effects of Saffron, this study aimed to investigate the pharmacological effects of Saffron on hepatic inflammation and fibrosis. Methods The mice model of hepatic fibrosis was constructed u...
Article
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Purpose] Oxidative stress is regulated by antioxidant capacity in vivo. However, its impact on aging characteristics remains debatable. This study is first to report oxidative stress, antioxidant capacity, and their ratio in five age groups of rats, and aimed to provide basic data useful for disease prevention. [Materials and Methods] Sixty male Wi...
Poster
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Nanocrystalline Ni-Zn spinel ferrites: size-dependent physical, photocatalytic and antioxidant properties
Conference Paper
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Piper sarmentosum known as Kaduk in Malaysia is a climbing herb with long runners comes from the family of Piperacaeae. Piper sarmentosum has been traditionally used in culinary and alternative medicines in different parts of the world to cure many diseases and ailments. Thus, this study aims to screen antioxidant activity of P. sarmentosum based o...
Article
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III‐V quantum dots (QDs) have emerged as significant alternatives to Cd‐ and Pb‐based QDs, garnering notable attention over the past two decades. However, the understanding of III‐V QDs, particularly in the short wave‐infrared (SWIR) region, remains limited. InAs QDs are widely recognized as the most prominent SWIR QDs, but their absorption beyond...
Article
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The current study proposes an efficient coating methodology for the development of low-density polyethylene (LDPE) films with prolonged bioactivity for food packaging applications. Three natural phenolic-based substances were incorporated at optimized concentrations in methyl-cellulose-based solutions and used as coatings on LDPE films. The amount...
Article
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With the addition of the antioxidant butylated hydroxyanisole (BHA) and phenol, it affects the breakdown voltage characteristics of soybean oil as an alternative to transformer insulating oil. This test varied the addition of BHA by 2%, 3%, and 4%, and variations in the addition of phenol by 2%, 3%, and 4%. Samples were prepared with a volume of 50...
Article
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The genus Desmodium includes about 350 species, distributed in tropical and subtropical regions around the world. The objective of this review was to associate the traditional medicinal uses of the genus Desmodium with its biological activities reported in the scientific literature. Traditional medicinal uses and biological activities were describe...
Article
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Vigna Subterranea is a plant whose seeds are widely consumed in Chad. Five seed varieties from the Chadian Institute of Agronomic Research for Development (CIARD) in, Chad. Total polyphenol and total anthocyanin contents were assessed by the Folin-Ciocalteu and pH-differential methods respectively. Total antioxidant levels were determined by DPPH a...
Article
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Introduction:D-Pinitol, a polyol is a potent antioxidant agent and anti-inflammatory agent. Hence,this study was carried out to evaluate whether D-Pinitol administration prior to induction of cardiotoxicity using Doxorubicin would protect cardiac histopathological changes in an experimental mice model. Methods: Ten groups of sixty Swiss Albino mice...
Conference Paper
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The growing global concern about antimicrobial resistance necessitates alternative strategies against multidrug-resistant bacteria. Our study explores the antimicrobial potential of phenolic compounds from Tinto Cão grape winemaking by-products. These compounds effectively combat S. epidermidis, K. pneumoniae, and L. monocytogenes, showing promise...
Article
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The excess of free radicals is known to induce dysfunction in tissues and cells within the human body. This phenomenon is caused by the imbalance between antioxidants and free radical production necessitating the need for exogenous antioxidants. Golden bladderwort (Utricularia aurea) plant may have the potential as a source of antioxidant. Therefor...
Article
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This work deals with the formulation of natural cosmetics enriched with antioxidant fractions from the ultrasound treatment (US) of the brown seaweed Saccharina latissima. The challenge was the development of a cosmetic matrix without jeopardizing the thermorheological features of the creams, adding microparticles containing the antioxidant fractio...
Article
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Background Numerous studies have demonstrated the potential of pirfenidone to enhance the prognosis of patients afflicted with idiopathic pulmonary fibrosis (IPF). Although N-acetylcysteine (NAC) is utilized as an antioxidant in IPF treatment, the combination of NAC and pirfenidone has produced inconsistent outcomes in certain studies. To assess th...
Article
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This paper presents the results of a two-year trial on the yield, total phenolic and flavonoid contents and total antioxidant capacity of the ‘Willamette’ red raspberry under organic and conventional farming. A trial was conducted in a commercial plantation of ‘Willamette’ raspberries located in the southwestern part of Serbia.The total phenolics a...
Article
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Cottonseed protein concentrate (CPC) has the function of replacing soybean meal to maintain normal animal growth and development. This study involved 180 Arbor Acres (AA) broilers, which were randomly assigned to three different treatments. Each treatment had six replicates, with each replicate consisting of 10 chicks. The control group was fed a b...
Article
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Four crisping diets were designed to conduct a feeding experiment to investigate the use of broad bean in the formulated feed of Nile tilapia and optimize its use. The growth performance, muscle characteristics, antioxidant capacity, and intestinal health of Nile tilapia with an initial body weight of 617.32 ± 1.64 g were evaluated after being fed...
Article
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Novel quinoline derivatives were synthesized based on 6-amino-substituted quinoline, and antioxidant activity of these compounds is studied by p-nitroso-N,N-dimethylaniline assay. The rate of the reaction between OH radicals and quinoline derivatives is determined by photometric method and the obtained results are compared with that of well-known a...
Article
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Many microbial exopolysaccharides (EPS) have been reported in the last decade, and their fermentation processes, functional properties and applications, structural characterization, and biological activities have been extensively studied. Despite the great diversity of biological activities already described for EPS, only a few have been exploited...
Article
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Acetylation could improve the bioavailability of (-)-Epigallocatechin-3-Gallate (EGCG), but the relationship of substitution degree and antioxidant capacity of acetylated EGCG was unclear. The acetylated EGCG products were separated by preparation high performance liquid chromatography (HPLC). Two mono substituted acetylated EGCG, three substituted...
Article
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The development and progression of cancer are associated with the dysregulation of multiple pathways involved in cell proliferation and survival, as well as dysfunction in redox balance, immune response, and inflammation. The master antioxidant pathway, known as the nuclear factor erythroid 2-related factor 2 (Nrf2) pathway, regulates the cellular...
Article
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Erythrocytes are responsible for the transport of oxygen within the organism, which is particularly important for nerve tissues. Erythrocyte quality has been shown to be deteriorated in oxidative stress conditions. In this study, we measured the same series of oxidative stress markers in plasma and erythrocytes to compare the differences between ne...
Article
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Onions, often referred to as the “backbone of flavour” in many culinary traditions, are a versatile and essential ingredient in kitchens around the world. Beyond their role in adding taste and aroma to dishes, onions have long been appreciated for their numerous health benefits. These flavourful bulbs are rich in vitamins, minerals, antioxidants an...
Article
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Angelica sinensis (Oliv.) Diels (A. sinensis) has a long processing history. In order to obtain a more valuable composition and higher antioxidant behavior, it is often processed by stir-frying and vinegar treatment. However, the underlying mechanism of chemical changes remains ambiguous. Using UPLC-QQQ-MS/MS alongside targeted metabolomics techniq...
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This study aimed to investigate the effects of adding probiotics, prebiotics, and different types of jelly agents on a few key quality attributes of potentially functional mulberry jellies throughout a 10-day storage period at 4 °C. Mullbery juice was separately fermented at 37 °C for 24 h using Lactiplantibacillus plantarum O21; it was a favorable...
Article
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The modern trend in sunscreen products is towards the development of UV filters with multi-functional properties, to provide a broad shielding against ultraviolet radiation, antioxidant activity, and the prevention of skin cancer. Additionally, they should also be safe for humans as well as the environment. The benzimidazole heterocycle is a suitab...
Article
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Noscapine is one of the leading antitussive drugs available but it also faces the huge task of solubility. Ionic liquids are found to have high water solubility and stability. The authors have designed ionic liquids of noscapine and studied their interactions using DFT calculations. It was found that both the solubility and stability of noscapine i...
Article
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Our previous animal studies found that the preventive effects of lactoferrin (Lf) on alcoholic liver injury (ALI) are associated with nuclear factor E2-related factor 2 (Nrf2). To further explore the causality, experiments were performed using rat normal liver BRL-3A cells. Lf treatment reduced ethanol-induced death and apoptosis; meanwhile, Lf tre...
Article
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Numerous diseases, including diabetes, atherosclerosis, cancer, and neurological and cardiovascular diseases, are caused by oxidative stress. Therapeutic antioxidants are promising options for preventing and treating illnesses caused by oxidative stress. We present the design, Antioxidant Activity of Some 1, 5-Diphenyl-2, 4-Disubstituted-1H-Imidazo...
Article
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The antioxidant properties of selenium nanoparticles coated with arabinogalactan have been studied. The nanoparticles were characterized by transmission electron microscopy and infrared spectroscopy. Arabinogalactan-coated selenium nanoparticles were incubated together with Ehrlich ascitic carcinoma cells and then exposed to microwave radiation. Th...
Article
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Background: Most studies have primarily focused on assessing the association between diet or exercise patterns and metabolic dysfunction-associated steatotic liver disease (MASLD). This study adopted a more comprehensive approach by introducing the oxidative balance score (OBS) to evaluate the combined effects of diet and lifestyle on the body’s an...
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Sıçanlarda paklitaksel (PTX) kaynaklı akciğer hasarına karşı misoprostol’ün (MP) koruyucu etkilerinin incelendiği bu çalışmada, yirmi bir adet dişi Sprague-Dawley cinsi sıçan kullanıldı. Bu hayvanlardan rastgele bir seçimle Kontrol, PTX ve PTX + MP olmak üzere 3 grup (n=7) oluşturuldu. Kontrol grubuna 1 mL %0,9 NaCl intraperitoneal (i.p.) ve 1 mL %...
Article
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Green nanotechnology has attracted attention worldwide. This work aims to study the antioxidant and anti-hemolytic activity of the synthesized silver nanoparticles. It was noted that the synthesized green nanoparticles possess remarkable antioxidant and anti�hemolytic activity as well. The antioxidant activity of silver nanoparticles was studied....
Article
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Copper functions as a structural component in many proteins involved in energy and iron metabolism, production of neurotransmitters, formation of connective tissue and endogenous antioxidant defence. Several biochemical indices have been suggested and used to assess copper status, but none of these has been found suitable for the detection of margi...
Article
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Günümüzde kullanılan birçok terapötik ilaç kaynağını şifalı bitkilere borçludur. Her bitkinin kendine özgü aktivitesi ve biyokimyasal profili vardır. Bu çalışmada günlük hayatta oldukça iyi bilinen üç farklı bitki türü; Helianthus tuberosus, Zingiber officinale ve Raphanus sativus var. niger kullanıldı. İlk defa yapılan bu çalışmada antioksidan akt...
Article
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With its antioxidant properties, hydrogen gas (H2) has been evaluated in vitro, in animal studies and in human studies for a broad range of therapeutic indications. A simple search of “hydrogen gas” in various medical databases resulted in more than 2000 publications related to hydrogen gas as a potential new drug substance. A parallel search in cl...
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This study aimed to evaluate the response of Triticum aestivum to hydrogen water (HW) and trace elements treated with HW. A pot experiment was conducted to assess the growth indices, secondary metabolites, and antioxidant levels. The response surface methodology (RSM) approach was used to ascertain the concentrations and significant interaction bet...
Preprint
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This work is aimed at studying the effects of rifampicin resistance mutations on the synthesis of secondary metabolites with antioxidant and DNA-protective properties. We used probiotic strains of the genus Bacillus : B. amyloliquefaciens B-1895 and B. subtilis KATMIRA1933. The antioxidant, DNA-protective activity, and the ability to suppress the S...
Poster
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The beneficial effect of Moringa oleifera and Eclipta alba was examined on the gentamicin-induced nephrotoxicity in adult. The Moringa oleifera and Eclipta alba administered group showed a significant attenuation in oxidative stress and observed in renal tissues of gentamicin treated group as well as the Moringa oleifera and Eclipta alba treated gr...
Article
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Given their potent antioxidant and biological properties [...]
Book
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Diabetes mellitus ist eine Stoffwechselerkrankung, die zu einem Problem der öffentlichen Gesundheit geworden ist. Sie ist durch eine Hyperglykämie gekennzeichnet. Ziel dieser Studie ist es, die antihyperglykämische, antioxidative, antialzheimerische und zytoprotektive Wirkung von Extrakten aus zwei Pflanzen aus dem Nordosten Algeriens, Rosmarinus o...
Article
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Introduction Aging leads to significant structural and functional changes in blood vessels, which disrupt their normal function and impact cardiovascular health. Current research is actively exploring the NRF2 antioxidative pathway, recognizing its role in protecting cells by preserving their antioxidant defenses against damage. However, there has...
Article
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A major problem that limits the use of biodiesel is maintaining the fuel at the specified standards for a longer period. Biodiesel oxidizes much more easily than diesel, and the final oxidation products change its physical and chemical properties and cause the formation of insoluble gums that can block fuel filters and the supply pipes. This instab...
Article
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Because of its potent antioxidant effects, lycopene has been used in various industries including, but not limited to, food, medical, and cosmetic industries. Yarrowia lipolytica , a non-conventional yeast species, is a promising chassis due to its natural mevalonate (MVA) pathway, abundant precursor acetyl coenzyme A content, and oleaginous proper...
Article
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It is generally thought that under basal conditions, neurons produce ATP mainly through mitochondrial oxidative phosphorylation (OXPHOS), and glycolytic activity only predominates when neurons are activated and need to meet higher energy demands. However, it remains unknown whether there are differences in glucose metabolism between neuronal somata...
Article
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Ferroptosis is a type of iron-dependent programmed cell death caused by the imbalance between oxidants and antioxidants. A disintegrin and metalloproteinase-8 (ADAM8) is a metalloproteinase that mediates cell adhesion, cell migration, and proteolytic activity. However, the molecular mechanism of ADAM8 regulating ferroptosis after neural disorder is...
Conference Paper
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Accumulated evidence from cell and animal models highlights the potency of phytochemicals’ potency in targeting the Keap1-Nrf2-ARE antioxidant pathway for preventing chronic diseases. However, the scarcity of human data necessitates urgent exploration of phytochemical-based supplements in human chronic disease prevention. Comprehensive evaluation...
Article
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Polydopamine (PDA) as a melanin-like biomimetic material with excellent biocompatibility, full spectrum light absorption capacity and antioxidation property has been extensively applied in the biomedical field. Based on the high reactivity of dopamine (DA), exploiting new strategies to fabricate novel PDA-based nano-biomaterials with controllable s...
Article
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Background: Klotho is widely recognized as a protein that combats aging and possesses antioxidative characteristics, which have been implicated in the pathophysiology of numerous diseases. There is emerging evidence suggesting that the consumption of dietary nutrients, particularly those rich in antioxidants, could be associated with serum Klotho c...