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Which vitamin does not have antioxidant action?

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Journal Article•DOI Folates as antioxidants A. Gliszczynska-Swiglo 01 Jan 2007-Food Chemistry 52 Citations	Their antioxidant activities are comparable to those of vitamin C and E, which are commonly accepted as the effective water and lipid soluble antioxidants.
Open access•Journal Article•DOI Vitamin B12 in Relation to Oxidative Stress: A Systematic Review. Erik E van de Lagemaat, Erik E van de Lagemaat, Lisette C. P. G. M. de Groot, Ellen G. H. M. van den Heuvel - Show less +3 more 25 Feb 2019-Nutrients 119 Citations	Vitamin B12 (B12) appears to possess antioxidant properties.
Open access•Journal Article•DOI Reply: Does vitamin C have a pro-oxidant effect? Ian D. Podmore, Helen R. Griffiths, Karl E. Herbert, Nalini Mistry, Pratibha Mistry, Joseph Lunec - Show less +5 more 17 Sep 1998-Nature 17 Citations	On this basis, vitamin C seems to act as both a pro-oxidant and an antioxidant in vivo.
Journal Article•DOI Induction of a SOS repair system in lysogenic bacteria by zearalenone and its prevention by vitamin E L. Ghedira-Chekir, Khira Maaroufi, A. Zakhama, F. Ellouz, S Dhouib, Edmond E. Creppy, H. Bacha - Show less +6 more 01 May 1998-Chemico-Biological Interactions 42 Citations	This vitamin could be active both as an antioxidant and as a radical scavenger.
Open access•Journal Article•DOI Antioxidant and pro-oxidant activity of Vitamin C in oral environment. Aratirika Chakraborthy, Pratibha Ramani, Herald J Sherlin, Priya Premkumar, Anuja Natesan - Show less +4 more 01 Jul 2014-Indian Journal of Dental Research 69 Citations	The data validates the role of Vitamin C as an antioxidant under physiologic conditions exhibiting a cross over role as a pro-oxidant in pathological conditions.

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Which vitamins function as antioxidants?4 answersVitamin C, vitamin E, carotenoids, vitamin K, vitamin D, niacin, pyridoxine, and riboflavin are all vitamins that function as antioxidants. These vitamins have been shown to reduce oxidative stress and prevent or improve disease conditions by reducing lipid peroxidation, protein carbonylation, and advanced glycated end-products. Ascorbic acid (vitamin C) is particularly known for its strong antioxidant properties and its ability to stimulate the biosynthesis and activation of antioxidant enzymes. Vitamin E, specifically α- and γ-tocopherols, are also important antioxidants in nature and protect polyunsaturated fatty acids from free radical attack. Further research is needed to fully understand the antioxidant mechanisms and potential of these vitamins.

Do vitamins have a protective effect against oxidative stress in pigs?5 answersVitamins, specifically vitamin C and vitamin E, have been shown to have a protective effect against oxidative stress in pigs. Vitamin C plays a role in protection against oxidative processes, which is important for the protection of sperm and the breakdown of reactive oxygen molecules and radicals in cells. In a study on boars, the addition of vitamin A, vitamin E, and ascorbic acid to the diet significantly changed the prooxidant-antioxidant homeostasis in the blood, reducing peroxidation processes and increasing antioxidant levels. Another study found that vitamin C can alleviate liver damage in piglets caused by oxidative stress induced by zearalenone, a mycotoxin found in animal feed. Additionally, a study on guinea pigs showed that the administration of L-ascorbic acid and alpha-tocopherol, either individually or in combination, inhibited markers of oxidative stress, indicating their important antioxidant activity. Therefore, vitamins have been shown to have a protective effect against oxidative stress in pigs.

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What is Antioxidant?

Antioxidants are substances that prevent or delay oxidative damage by inhibiting the formation of free radicals, which can harm cells. In living organisms, oxidative stress caused by an imbalance between free radicals and the body's ability to eliminate them leads to cellular damage and various diseases. Antioxidants can be natural or synthetic compounds found in foods like fruits, vegetables, grains, and beverages, rich in metabolites such as flavonoids, vitamins, and phenolic acids, which promote health and prevent diseases. These compounds scavenge free radicals, protecting cellular structures like lipids, nucleic acids, and proteins, thus maintaining cellular health and viability. Antioxidants play a crucial role in food preservation by retarding oxidation processes, maintaining nutrient levels, texture, taste, and appeal to consumers.What is a good vitamin?

A good vitamin is one that is essential for normal health and must be supplied through the diet, as the body cannot synthesize it. Vitamin C, for example, plays crucial roles in various biochemical reactions as an enzyme cofactor, including collagen synthesis, carnitine and catecholamine production, and iron metabolism. It acts as a water-soluble antioxidant, protecting cells from oxidative damage, and is vital for collagen and neurotransmitter synthesis. Similarly, vitamin A is essential for vision, gene expression regulation, immune function, and tissue health. Vitamin K, known for its role in blood clotting, also supports bone health and tissue functions through posttranslational modifications of proteins. Therefore, vitamins like C, A, and K are considered good due to their diverse physiological functions and essential roles in maintaining overall health.What are the specific nutrients in food that have positive effects on overall health?

Specific nutrients in food that have positive effects on overall health include phytonutrients like polyphenols, terpenoids, resveratrol, flavonoids, carotenoids, limonoids, glucosinolates, phytoestrogens, phytosterols, anthocyanins, ω-3 fatty acids, and probiotics. Carotenoids such as lutein and zeaxanthin found in green leafy vegetables and egg yolks are essential for eye health and may reduce the risk of cataracts and age-related macular degeneration. Cereal grains contain dietary fibers, proteins, and polyphenols that can reduce the risk of cardiovascular events, while flaxseed with secoisolariciresinol diglucoside (SDG) has anticancer effects. Additionally, plant sterols in foods like vegetable oils and nuts can lower cholesterol levels, and omega-3 PUFAs found in fatty fish have positive effects in decreasing cardiovascular disease risk factors. These nutrients play crucial roles in promoting human health and well-being.What specific plant compounds have been found to be most beneficial in reducing stroke risk or improving stroke outcomes?

Plant compounds such as geraniol (GE), polyphenolic compounds like gallic acid, resveratrol, quercetin, kaempferol, mangiferin, epigallocatechin, and pinocembrin, flavone C-glycoside, eriodictyol, rosamirinic acid, 6″-O-succinylapigenin, and allicin, and isoflavones including genistein, daidzein, formononetin, biochanin-A, and calycosinhave shown promising neuroprotective effects in reducing stroke risk or improving stroke outcomes. These compounds exhibit antioxidant, anti-inflammatory, and anti-apoptotic properties, which play crucial roles in mitigating oxidative stress, inflammation, and neuronal damage associated with stroke. Additionally, the comprehensive neuroprotective mechanisms of natural products, including flavonoids, phenols, terpenes, alkaloids, and glycosides, have shown potential in addressing the complex cascade processes involved in cerebral ischemic stroke. Overall, these plant compounds offer a promising avenue for the development of innovative therapeutic strategies for stroke prevention and treatment.What is the impact of spraying nano_ nitrogen and potassium on the photosynthesis process in Calendula officinalis plants?

Spraying nano-nitrogen and potassium on Calendula officinalis plants can have varying impacts on the photosynthesis process. Research indicates that the application of cerium oxide nanoparticles (CeO2 NPs) induced changes in physiological parameters, such as chlorophyll contents, in marigold plants. Additionally, the study on the effects of growth stimulants like yeast extract, humic acid, and algae extract showed improvements in physiological characteristics like chlorophyll a, chlorophyll b, and total chlorophyll in leaves when applied to Calendula officinalis plants. Moreover, the application of mineral and organic nitrogen fertilizers, including nano-chelate nitrogen, influenced the antioxidant activity in marigold plants, which is crucial for photosynthesis processes. Therefore, the combined data suggests that spraying nano-nitrogen and potassium can potentially impact the photosynthesis process in Calendula officinalis plants by influencing physiological parameters and antioxidant activity.Chitosan from milkfish scales as bioactive coating against plant disease?

Chitosan derived from milkfish scales can indeed serve as a bioactive coating against plant diseases. Chitosan, a biodegradable and biocompatible compound, exhibits antimicrobial properties that can effectively combat pathogens in plants. Studies have shown that chitosan, particularly when combined with plant extracts, enhances its antimicrobial and antioxidant capabilities, making it a valuable resource for food preservation and disease management in agriculture. Furthermore, chitosan extracted from shellfish has demonstrated significant antifungal potential against various plant pathogens, leading to a reduction in disease severity and incidence in crops like rice. Therefore, utilizing chitosan from milkfish scales as a bioactive coating can be a sustainable and effective strategy to protect plants from diseases.Does RIBOFLAVIN have potential therapeutic benefits for individuals with hormonal imbalances?

Riboflavin, also known as vitamin B2, exhibits therapeutic potential beyond its traditional roles. Studies suggest that riboflavin possesses antioxidant properties, which can help alleviate oxidative stress associated with various chronic diseases like cancer, diabetes, and cardiovascular diseases. Additionally, riboflavin has been linked to anticancer, anti-inflammatory, and anti-nociceptive effects, showcasing its diverse therapeutic benefits. Furthermore, riboflavin has shown promise in reducing histamine-induced itching by modulating TRPV1 activity, indicating its potential as an antipruritic agent. Therefore, individuals with hormonal imbalances may benefit from riboflavin's multifaceted therapeutic properties, although further research is needed to explore its specific effects on hormonal regulation.Do polyphenols show an interaction with viscosity enhancers in cosmetics?

Polyphenols, such as tannic acid and gallic acid, have been studied for their interaction with viscosity enhancers in cosmetics. Tannic acid and gallic acid were found to be effective additives in emulsion formulations, impacting droplet size and color parameters. Additionally, a fusion polyphenol containing a peptide sequence and polyphenol showed increased stability and skin permeability in cosmetic products, indicating a potential interaction with viscosity enhancers. Moreover, the use of green tea waste (GTW) carboxymethylated nanoparticles with varying degrees of substitution demonstrated enhanced water retention values and rheological properties, suggesting a possible interaction with viscosity enhancers in cosmetic formulations. Therefore, polyphenols exhibit interactions with various components in cosmetics, including viscosity enhancers.What are the potential benefits of using hyaluronic acid supplements for joint health?

Hyaluronic acid (HA) supplements offer various benefits for joint health. They can help restore the rheological properties of synovial fluid, reduce inflammation, alleviate pain, and improve joint function. HA supplements can also preserve viscoelasticity, reduce friction in joints, and expedite functional recovery post-arthroscopic surgery. High molecular weight HA, like GreenIuronic®, can promote tissue regeneration, maintain joint homeostasis, and prevent cartilage degradation in osteoarthritis. Studies have shown that intra-articular HA injections significantly improve symptoms in knee osteoarthritis patients, with effects peaking around 8-12 weeks post-administration. Combining HA with other substances like cyclodextrin and vitamin E can enhance viscoelastic and lubrication properties, provide antioxidant benefits, and improve clinical outcomes. Overall, HA supplements offer a promising approach for managing joint diseases effectively.How does gamma irradiation affect on flours l fiber?

Gamma irradiation has varying effects on the fiber content of different flours. Studies on brown rice flour, red pitaya shell flour, black rice flour, maize flour, and pigeon pea flourshow that gamma irradiation can lead to changes in fiber content. While some flours maintained their fiber content, others experienced slight decreases. For instance, black rice flour showed a decrease in pasting properties and fiber content with irradiation. On the other hand, red pitaya shell flour maintained its fiber content. These findings suggest that the impact of gamma irradiation on fiber in flours can vary depending on the type of flour and the specific conditions of irradiation.What is green products?

Green products are environmentally friendly items that are produced using sustainable practices and materials. These products aim to reduce negative impacts on the environment and human health. Green marketing plays a crucial role in promoting these products by integrating environmental principles into brand communication strategies. The shift towards green products is driven by consumers' increasing environmental awareness, leading to a decline in the market share of traditional brown products. Additionally, the concept of green design methods emphasizes the relationship between energy and product life cycles, focusing on factors like failure rate and reliability to enhance sustainability. Overall, green products are essential for promoting sustainability, reducing environmental harm, and meeting the evolving preferences of environmentally conscious consumers.