{"id":253,"date":"2025-09-03T08:42:30","date_gmt":"2025-09-03T03:12:30","guid":{"rendered":"https:\/\/www.najao.com\/learn\/?p=253"},"modified":"2026-01-26T04:45:06","modified_gmt":"2026-01-25T23:15:06","slug":"reactive-oxygen-species-oxidative-stress","status":"publish","type":"post","link":"https:\/\/www.najao.com\/learn\/reactive-oxygen-species-oxidative-stress\/","title":{"rendered":"The Double-Edged Sword: Understanding Reactive Oxygen Species and Oxidative Stress"},"content":{"rendered":"\n<p><strong>Reactive oxygen species (ROS) are vital for cell signaling but harmful in excess, causing oxidative stress that damages cells and contributes to aging and diseases. Maintaining balance through antioxidants and healthy lifestyle choices is key to protecting cellular health and preventing chronic conditions.<\/strong><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Introduction<\/h2>\n\n\n\n<p>Each and every living cell is constantly striving for a state of balance. This intrinsic ability to maintain a stable internal state, crucial for life and function, is referred to as homeostasis<strong><sup>1<\/sup><\/strong>. But why and how do our cells maintain this harmony?<\/p>\n\n\n\n<p>By regulating their internal environment, cells can maintain stable conditions despite external fluctuations, allowing room for proper enzyme activity and other cellular processes.&nbsp;They do so by regulating transport of ions and small molecules and communicating with neighboring cells. &nbsp;<\/p>\n\n\n\n<p>Within the constraints of this delicate balance, molecules that at first might seem like adversaries, play vital roles. Among these molecules are Reactive Oxygen Species (ROS)\u2014naturally occurring molecules that play roles in essential cellular signaling and physiological processes, and high levels of which can lead to oxidative damage<strong><sup>2, 3<\/sup><\/strong>.<\/p>\n\n\n\n<p>However, when production of these ROS overwhelms the defense mechanisms of the cell, oxidative stress ensues, contributing significantly to a plethora of diseases<strong><sup>4<\/sup><\/strong>. This nuanced interplay thus represents a fine line that can be key to unlocking new avenues for treatment.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Reactive oxygen species (ROS)<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">What exactly are ROS?<\/h3>\n\n\n\n<p>ROS are, essentially, a class of highly reactive, oxygen-derived molecules, many of which are free radicals. This makes them highly unstable and eager to react with other molecules for achieving stability<strong><sup>5<\/sup><\/strong>. Non-radical ROS are also highly reactive due to their specific chemical configurations<strong><sup>6<\/sup><\/strong>.<\/p>\n\n\n\n<p>The most common players in the ROS family include the primary ROS\u2014superoxide radical (O<sup>2<\/sup><sup>\u22c5<\/sup><sup>\u2212<\/sup>\u200b), and hydroxyl radical (\u22c5OH), the most potent and damaging of all. Non-radical examples include hydrogen peroxide (H<sub>2<\/sub>\u200bO<sub>2<\/sub>\u200b), a relatively stable signaling molecule, and singlet oxygen (<sup>1<\/sup>O<sup>2<\/sup>\u200b), a highly excited form of oxygen.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Where do ROS come from?<\/h3>\n\n\n\n<p>ROS are generated all around our biological systems, both from within our bodies and from the environment that surrounds us.<\/p>\n\n\n\n<p>The most significant internal source is the mitochondria<strong><sup>7<\/sup><\/strong>. As they generate energy in the form of ATP through the electron transport chain, a small fraction of electrons leaks and react with oxygen, forming the highly potent superoxide radicals<strong><sup>8<\/sup><\/strong>. This occurs as we breathe and metabolize food. Enzyme classes, such as NADPH oxidases (NOXs) employ immune cells to generate superoxide, resulting in the &#8220;oxidative burst&#8221;, to kill invading pathogens<strong><sup>9<\/sup><\/strong>. Xanthine oxidase and lipoxygenases are some other enzymes that contribute, along with other organelles including peroxisomes and the endoplasmic reticulum, as part of their normal operations<strong><sup>10-13<\/sup><\/strong>.<\/p>\n\n\n\n<p>In course of our daily life, we are constantly exposed to external sources that can significantly increase ROS levels.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Breathing polluted air containing ozone and particulate matter, exposure to industrial chemicals and <a href=\"https:\/\/www.najao.com\/learn\/heavy-metals\/\" target=\"_blank\" rel=\"noreferrer noopener\">heavy metals<\/a> such as lead, cadmium, and arsenic can lead to the formation of ROS<strong><sup>14, 15<\/sup><\/strong>.<\/li>\n\n\n\n<li>Radiation exposure, whether from the sun\u2019s UV radiation, or from X-rays and radiotherapy, can split water molecules, activating cellular pathways to produce ROS in large quantities<strong><sup>16<\/sup><\/strong>. Smoking and alcohol consumption also pose as major contributors, prompting ROS-generating pathways<strong><sup>17<\/sup><\/strong>.<\/li>\n\n\n\n<li>Furthermore, chronic inflammation and <a href=\"https:\/\/www.najao.com\/learn\/antimicrobial-resistance\/\" target=\"_blank\" rel=\"noreferrer noopener\">infection<\/a> cause sustained activation of immune cells and are significant sources of ROS<strong><sup>18<\/sup><\/strong>.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">The &#8220;Good&#8221; side of ROS<\/h3>\n\n\n\n<p>Despite their general reputation of being damaging, ROS are not inherently harmful. At low to moderate concentrations, they activate specific cascades that influence gene expression, cell proliferation, differentiation, and apoptosis, functioning as intracellular messengers<strong><sup>19-21<\/sup><\/strong>.<\/p>\n\n\n\n<p>Their duality gets most pronounced in the way they induce immune responses. Immune cells such as phagocytes generate huge quantities of superoxide and hydrogen peroxide through an &#8220;oxidative burst&#8221; to kill invading microorganisms in a targeted manner<strong><sup>9<\/sup><\/strong>. Thus, by regulating various physiological processes, ROS help in maintaining cellular homeostasis.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Oxidative stress<\/h2>\n\n\n\n<p>While ROS are naturally occurring and even beneficial in moderate levels, it&#8217;s their imbalance that triggers oxidative stress, pushing the system from beneficial to destructive.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Defining the imbalance<\/h3>\n\n\n\n<p>Oxidative stress occurs when the generation of ROS in a biological system surpasses the neutralizing capacity of the antioxidant defense mechanisms. This disrupts the normal redox homeostasis, leading to cellular damage.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">How excess ROS harms cells and tissues<\/h3>\n\n\n\n<p>Excessive ROS levels attack fundamental cellular components, causing widespread damage:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Lipid peroxidation:<\/strong> The hydroxyl radical form of ROS attacks the polyunsaturated fatty acids of cell membranes, damaging their structural integrity by a process known as lipid peroxidation<strong><sup>22<\/sup><\/strong>. This causes loss of fluidity, enhanced permeability, and eventually, cell lysis. It also leads to generation of highly toxic byproducts such as malondialdehyde and 4-hydroxynonenal, which can end up harming other cellular components<strong><sup>22<\/sup><\/strong>.<\/li>\n\n\n\n<li><strong>Protein oxidation:<\/strong> These free radicals can modify amino acids, changing protein structure, leading to the loss of enzyme activity, and formation of faulty protein aggregates. Protein oxidation impairs everything from metabolism and transport to signaling and structural support<strong><sup>23<\/sup><\/strong>.<\/li>\n\n\n\n<li><strong>DNA and RNA damage:<\/strong> ROS can oxidize nucleotide bases of DNA and RNA, forming 8-oxoguanine, causing strand breaks and inducing cross-linking<strong><sup>24<\/sup><\/strong>. Such damage can lead to mutations, impaired DNA replication and repair mechanisms, and ultimately, genomic instability\u2014a hallmark of aging and cancer.<\/li>\n\n\n\n<li><strong>Carbohydrate damage:<\/strong> Although less extensively studied than damage to lipids, proteins, and DNA, ROS can also attack and modify carbohydrates, affecting their structure and function within the cell<strong><sup>25<\/sup><\/strong>.<\/li>\n<\/ul>\n\n\n\n<p>However, the tipping point towards oxidative stress is more than just about increased ROS production. A lowered antioxidant defense and persistent inflammation can leave the body vulnerable to even normal ROS levels.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Antioxidant defense systems<\/h2>\n\n\n\n<p>Fortunately, our bodies come with sophisticated defense mechanisms specifically designed to counteract ROS and prevent oxidative stress. These are the antioxidants, molecules that can neutralize ROS, scavenge free radicals, or inhibit their formation, thereby protecting cells from damage<strong><sup>4<\/sup><\/strong>. They are crucial for maintaining redox balance and ensuring cellular integrity.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Internal antioxidant systems<\/h3>\n\n\n\n<p>Our cells naturally produce a formidable array of antioxidants. These include enzymatic antioxidants, which efficiently catalyze proteins, converting harmful ROS into less damaging molecules. Key players include<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Superoxide dismutase<\/strong>, which converts superoxide into hydrogen peroxide<strong><sup>26<\/sup><\/strong>.<\/li>\n\n\n\n<li><strong>Catalase<\/strong>, which breaks down hydrogen peroxide into harmless water and oxygen<strong><sup>27<\/sup><\/strong>.<\/li>\n\n\n\n<li><strong>Glutathione peroxidase<\/strong>, which uses glutathione to reduce hydrogen peroxide and organic hydroperoxides<strong><sup>28<\/sup><\/strong>.<\/li>\n<\/ul>\n\n\n\n<p>Other than enzymes, our body also relies on non-enzymatic antioxidants\u2014smaller molecules that directly scavenge free radicals. Glutathione, the &#8220;master antioxidant,&#8221; is abundant in cells and plays a versatile role in direct radical scavenging and detoxification<strong><sup>29<\/sup><\/strong>. Other important endogenous scavengers include uric acid, bilirubin, and alpha-lipoic acid<strong><sup>30-32<\/sup><\/strong>.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Dietary antioxidants<\/h3>\n\n\n\n<p>Some essential antioxidants including crucial vitamins like Vitamins C and E are obtained through our diet. Carotenoids such as beta-carotene and lycopene, found in colorful fruits and vegetables, serve as potent lipid-soluble antioxidants that are effective at quenching singlet oxygen<strong><sup>33<\/sup><\/strong>. A vast group of plant compounds called polyphenols exhibit diverse antioxidant mechanisms<strong><sup>34<\/sup><\/strong>.<\/p>\n\n\n\n<p>Additionally, trace minerals such as selenium, zinc, copper, and manganese are essential cofactors for the proper functioning and activity of the body&#8217;s key enzymatic antioxidant systems, but they are not antioxidants themselves<strong><sup>35<\/sup><\/strong>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Oxidative stress and disease<\/h2>\n\n\n\n<p>The collective damage inflicted by persistent oxidative stress contributes significantly to the development and progression of numerous chronic diseases, as well as the very process of aging.<\/p>\n\n\n\n<p>According to one of the leading theories of aging, cellular senescence is mainly driven by the lifelong accumulation of oxidative damage to macromolecules, tissue dysfunction, and the overall decline associated with aging<strong><sup>36<\/sup><\/strong>.<\/p>\n\n\n\n<p>In <a href=\"https:\/\/www.najao.com\/learn\/neurodegeneration\/\" target=\"_blank\" rel=\"noreferrer noopener\">neurodegenerative diseases<\/a>, for instance, the high oxygen consumption and specific lipid composition of the brain make neurons particularly vulnerable to oxidative damage<strong><sup>37<\/sup><\/strong>. Oxidative stress has been found to contribute significantly to neuronal dysfunction and death, leading to conditions such as <a href=\"https:\/\/www.najao.com\/learn\/alzheimers-disease\/\" target=\"_blank\" rel=\"noreferrer noopener\">Alzheimer&#8217;s disease<\/a>, <a href=\"https:\/\/www.najao.com\/learn\/parkinsons-disease\/\" target=\"_blank\" rel=\"noreferrer noopener\">Parkinson&#8217;s disease<\/a>, and Amyotrophic Lateral Sclerosis.<\/p>\n\n\n\n<p>Oxidative stress also plays a critical role in cardiovascular diseases<strong><sup>38<\/sup><\/strong>. It contributes to endothelial dysfunction, promotes the oxidation of Low Density Lipoprotein (bad cholesterol), and fuels inflammation, all of which are key steps in the development of atherosclerotic plagues and hypertension.<\/p>\n\n\n\n<p>ROS-induced DNA damage is also a direct cause of mutations, which can initiate <a href=\"https:\/\/www.najao.com\/learn\/cancer-carcinogenesis\/\" target=\"_blank\" rel=\"noreferrer noopener\">carcinogenesis<\/a><strong><sup>39<\/sup><\/strong>. Furthermore, ROS can alter cell signaling pathways, promoting uncontrolled cell proliferation, inhibiting apoptosis, and driving tumor development and progression. Oxidative stress has significant roles in both the initiation and growth of many forms of cancers.<\/p>\n\n\n\n<p>Oxidative stress is a major player for metabolic disorders such as diabetes and obesity<strong><sup>40<\/sup><\/strong>. It contributes to insulin resistance, impairs the function of insulin-producing pancreatic beta cells, and drives the development of various complications affecting the eyes, kidneys, and nerves.<\/p>\n\n\n\n<p>Chronic inflammatory diseases like rheumatoid arthritis and inflammatory bowel disease are characterized by persistent immune cell activation, leading to excessive ROS production<strong><sup>41, 42<\/sup><\/strong>. This, in turn, exacerbates inflammatory response and tissue damage.<\/p>\n\n\n\n<p>Oxidative stress leads to many other health challenges, including autoimmune diseases, chronic kidney disease, various respiratory diseases, and common eye conditions like cataracts and age-related macular degeneration<strong><sup>43-46<\/sup><\/strong>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Managing oxidative stress<\/h2>\n\n\n\n<p>Given the extensive role of oxidative stress in health and disease, strategies aimed at maintaining redox balance are crucial.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Lifestyle interventions<\/h3>\n\n\n\n<p>Empowering individuals to make informed lifestyle choices is fundamental:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>A balanced diet rich in fruits, vegetables, whole grains, nuts, and seeds is the most effective way to support antioxidant defenses<strong><sup>47<\/sup><\/strong>. These foods provide a complex array of natural antioxidants, vitamins, and minerals that work synergistically to manage ROS levels.<\/li>\n\n\n\n<li>Regular physical activity at a moderate level can enhance the body&#8217;s antioxidant enzyme systems. This improves its ability to handle ROS<strong><sup>47<\/sup><\/strong>.<\/li>\n\n\n\n<li>Stress management techniques like meditation and adequate sleep can help mitigate the link between increased oxidative stress and psychological stress<strong><sup>48<\/sup><\/strong>.<\/li>\n\n\n\n<li>Avoiding environmental toxins such as cigarette smoke, excessive alcohol consumption, and minimizing exposure to air pollution can also contribute to lowering oxidative burden<strong><sup>17<\/sup><\/strong>.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Antioxidant supplementation: cautions and considerations<\/h3>\n\n\n\n<p>Research on isolated antioxidant supplements has yielded mixed results, and in some cases, high doses have shown <a href=\"https:\/\/www.nccih.nih.gov\/health\/antioxidant-supplements-what-you-need-to-know\" target=\"_blank\" rel=\"noreferrer noopener\">no benefit<\/a>, even causing potential harm, as seen in increased cancer risk in smokers taking beta-carotene<strong><sup>49<\/sup><\/strong>. The intricate redox signaling system of our body depends on precise ROS levels, and overwhelming the system with external antioxidants can sometimes disrupt this delicate balance. The benefits of antioxidants are best obtained from a diverse diet rich in whole foods, where these compounds work in concert with other beneficial nutrients.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Therapeutic approaches<\/h3>\n\n\n\n<p>Scientific advancements are paving way for more targeted interventions, into pharmaceutical compounds or specific nutritional components. These can modulate antioxidant enzyme activity, effectively boosting the body&#8217;s intrinsic defense systems.<\/p>\n\n\n\n<p>Scientists are working on targeting specific ROS-producing pathways, to develop drugs that inhibit excessive ROS generation from particular sources without disrupting ROS signaling that are actually beneficial<strong><sup>50<\/sup><\/strong>.<\/p>\n\n\n\n<p>The future may also involve <a href=\"https:\/\/www.najao.com\/learn\/precision-medicine\/\" target=\"_blank\" rel=\"noreferrer noopener\">personalized<\/a> nutrition and medicine, where antioxidant strategies are tailored based on an individual&#8217;s genetic predisposition and specific oxidative stress biomarkers, leading to more precise and effective interventions<strong><sup>51, 52<\/sup><\/strong>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Conclusion<\/h2>\n\n\n\n<p>In the grand scheme of cellular life, reactive oxygen species represent a double-edged sword. They are indispensable for vital cellular functions, acting as messengers in important physiological processes. Yet, when their production spirals out of control, the resulting oxidative stress becomes a potent force for cellular damage, contributing to aging and a vast array of chronic diseases.<\/p>\n\n\n\n<p>The goal, therefore, is to maintain the crucial redox homeostasis: a delicate balance between ROS generation and antioxidant defense, without trying to eliminate <strong>all<\/strong> ROS<strong><sup>53<\/sup><\/strong>. By embracing lifestyle choices that support our natural defenses, and by understanding the intricate mechanisms involving ROS, we can navigate the complexities of cellular health.<\/p>\n\n\n\n<!--nextpage-->\n\n\n\n<h2 class=\"wp-block-heading\">FAQ<\/h2>\n\n\n\n<p>1. Can stress or anxiety affect my ROS levels?<br>Yes, chronic psychological stress and anxiety have been linked to increased production of ROS in the body, which may contribute to cellular damage over time.<\/p>\n\n\n\n<p>2. How can I check my body\u2019s oxidative stress levels?<br>Direct testing is complex and typically involves specialized medical tests measuring biomarkers of oxidative damage, which are not commonly part of routine checkups.<\/p>\n\n\n\n<p>3. Is cooking method important in reducing oxidative stress?<br>Certain methods such as grilling or frying at high temperatures can generate harmful compounds that may increase oxidative stress, while steaming or boiling are gentler.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Reference<\/h2>\n\n\n\n<p>1. Ray, P. D., Huang, B. W., &amp; Tsuji, Y. (2012). Reactive oxygen species (ROS) homeostasis and redox regulation in cellular signaling.&nbsp;<em>Cellular signalling<\/em>,&nbsp;<em>24<\/em>(5), 981-990.<\/p>\n\n\n\n<p>2. Thannickal, V. J., &amp; Fanburg, B. L. (2000). Reactive oxygen species in cell signaling.&nbsp;<em>American Journal of Physiology-Lung Cellular and Molecular Physiology<\/em>,&nbsp;<em>279<\/em>(6), L1005-L1028.<\/p>\n\n\n\n<p>3. Selman, C., Blount, J. D., Nussey, D. H., <em>et al<\/em>. (2012). Oxidative damage, ageing, and life-history evolution: where now?.&nbsp;<em>Trends in ecology &amp; evolution<\/em>,&nbsp;<em>27<\/em>(10), 570-577.<\/p>\n\n\n\n<p>4. Liu, Z., Ren, Z., Zhang, J., <em>et al<\/em>. (2018). Role of ROS and nutritional antioxidants in human diseases.&nbsp;<em>Frontiers in physiology<\/em>,&nbsp;<em>9<\/em>, 360203.<\/p>\n\n\n\n<p>5. Panth, N., Paudel, K. R., &amp; Parajuli, K. (2016). Reactive oxygen species: a key hallmark of cardiovascular disease.&nbsp;<em>Advances in medicine<\/em>,&nbsp;<em>2016<\/em>(1), 9152732.<\/p>\n\n\n\n<p>6. Li, R., Jia, Z., &amp; Trush, M. A. (2016). Defining ROS in biology and medicine.&nbsp;<em>Reactive oxygen species (Apex, NC)<\/em>,&nbsp;<em>1<\/em>(1), 9.<\/p>\n\n\n\n<p>7. Kowaltowski, A. J., de Souza-Pinto, N. C., Castilho, R. F., <em>et al<\/em>. (2009). Mitochondria and reactive oxygen species.&nbsp;<em>Free Radical Biology and Medicine<\/em>,&nbsp;<em>47<\/em>(4), 333-343.<\/p>\n\n\n\n<p>8. Zhao, R. Z., Jiang, S., Zhang, L., <em>et al<\/em>. (2019). Mitochondrial electron transport chain, ROS generation and uncoupling.&nbsp;<em>International Journal of Molecular Medicine<\/em>,&nbsp;<em>44<\/em>(1), 3.<\/p>\n\n\n\n<p>9. Slauch, J. M. (2011). How does the oxidative burst of macrophages kill bacteria? Still an open question.&nbsp;<em>Molecular microbiology<\/em>,&nbsp;<em>80<\/em>(3), 580-583.<\/p>\n\n\n\n<p>10. Bortolotti, M., Polito, L., Battelli, M. G., <em>et al<\/em>. (2021). Xanthine oxidoreductase: One enzyme for multiple physiological tasks.&nbsp;<em>Redox biology<\/em>,&nbsp;<em>41<\/em>, 101882.<\/p>\n\n\n\n<p>11. Chattopadhyay, R., Tinnikov, A., Dyukova, E., <em>et al<\/em>. (2015). 12\/15-Lipoxygenase-dependent ROS production is required for diet-induced endothelial barrier dysfunction.&nbsp;<em>Journal of lipid research<\/em>,&nbsp;<em>56<\/em>(3), 562-577.<\/p>\n\n\n\n<p>12. Schrader, M., &amp; Fahimi, H. D. (2006). Peroxisomes and oxidative stress.&nbsp;<em>Biochimica et Biophysica Acta (BBA)-Molecular Cell Research<\/em>,&nbsp;<em>1763<\/em>(12), 1755-1766.<\/p>\n\n\n\n<p>13. Zeeshan, H. M. A., Lee, G. H., Kim, H. R., <em>et al<\/em>. (2016). Endoplasmic Reticulum Stress and Associated ROS.&nbsp;<em>International Journal of Molecular Sciences<\/em>,&nbsp;<em>17<\/em>(3), 327.<\/p>\n\n\n\n<p>14. Lodovici, M., &amp; Bigagli, E. (2011). Oxidative stress and air pollution exposure.&nbsp;<em>Journal of toxicology<\/em>,&nbsp;<em>2011<\/em>(1), 487074.<\/p>\n\n\n\n<p>15. Wang, Y., Noman, A., Zhang, C., <em>et al<\/em>. (2024). Effect of fish-heavy metals contamination on the generation of reactive oxygen species and its implications on human health: a review.&nbsp;<em>Frontiers in Marine Science<\/em>,&nbsp;<em>11<\/em>, 1500870.<\/p>\n\n\n\n<p>16. Wei, J., Wang, B., Wang, H., <em>et al<\/em>. (2019). Radiation\u2010induced normal tissue damage: oxidative stress and epigenetic mechanisms.&nbsp;<em>Oxidative medicine and cellular longevity<\/em>,&nbsp;<em>2019<\/em>(1), 3010342.<\/p>\n\n\n\n<p>17. Zi\u0119ba, S., Maciejczyk, M., &amp; Zalewska, A. (2022). Ethanol-and cigarette smoke-related alternations in oral redox homeostasis.&nbsp;<em>Frontiers in Physiology<\/em>,&nbsp;<em>12<\/em>, 793028.<\/p>\n\n\n\n<p>18. Yu, W., Tu, Y., Long, Z., <em>et al<\/em>. (2022). Reactive oxygen species bridge the gap between chronic inflammation and tumor development.&nbsp;<em>Oxidative medicine and cellular longevity<\/em>,&nbsp;<em>2022<\/em>(1), 2606928.<\/p>\n\n\n\n<p>19. Mittler, R. (2017). ROS are good.&nbsp;<em>Trends in plant science<\/em>,&nbsp;<em>22<\/em>(1), 11-19.<\/p>\n\n\n\n<p>20. Redza-Dutordoir, M., &amp; Averill-Bates, D. A. (2016). Activation of apoptosis signalling pathways by reactive oxygen species.&nbsp;<em>Biochimica et Biophysica Acta (BBA)-Molecular Cell Research<\/em>,&nbsp;<em>1863<\/em>(12), 2977-2992.<\/p>\n\n\n\n<p>21. Krylatov, A. V., Maslov, L. N., Voronkov, N. S., <em>et al<\/em>. (2018). Reactive oxygen species as intracellular signaling molecules in the cardiovascular system.&nbsp;<em>Current cardiology reviews<\/em>,&nbsp;<em>14<\/em>(4), 290-300.<\/p>\n\n\n\n<p>22. Su, L. J., Zhang, J. H., Gomez, H., <em>et al<\/em>. (2019). Reactive oxygen species\u2010induced lipid peroxidation in apoptosis, autophagy, and ferroptosis.&nbsp;<em>Oxidative medicine and cellular longevity<\/em>,&nbsp;<em>2019<\/em>(1), 5080843.<\/p>\n\n\n\n<p>23. Cecarini, V., Gee, J., Fioretti, E., <em>et al<\/em>. (2007). Protein oxidation and cellular homeostasis: Emphasis on metabolism.&nbsp;<em>Biochimica et Biophysica Acta (BBA)-Molecular Cell Research<\/em>,&nbsp;<em>1773<\/em>(2), 93-104.<\/p>\n\n\n\n<p>24. Wurtmann, E. J., &amp; Wolin, S. L. (2009). RNA under attack: cellular handling of RNA damage.&nbsp;<em>Critical reviews in biochemistry and molecular biology<\/em>,&nbsp;<em>44<\/em>(1), 34-49.<\/p>\n\n\n\n<p>25. d&#8217;Ischia, M., Manini, P., &amp; Napolitano, A. (2006). Oxidative damage to carbohydrates and amino acids. In&nbsp;<em>Oxidative Stress, Disease and Cancer<\/em>&nbsp;(pp. 333-356). World Scientific.<\/p>\n\n\n\n<p>26. Wang, Y., Branicky, R., No\u00eb, A., <em>et al<\/em>. (2018). Superoxide dismutases: Dual roles in controlling ROS damage and regulating ROS signaling.&nbsp;<em>The Journal of Cell Biology<\/em>,&nbsp;<em>217<\/em>(6), 1915.<\/p>\n\n\n\n<p>27. Heck, D. E., Shakarjian, M., Kim, H. D., <em>et al<\/em>. (2010). Mechanisms of oxidant generation by catalase.&nbsp;<em>Annals of the new York Academy of Sciences<\/em>,&nbsp;<em>1203<\/em>(1), 120-125. &nbsp;<\/p>\n\n\n\n<p>28. Kinowaki, Y., Kurata, M., Ishibashi, S., <em>et al<\/em>. (2018). Glutathione peroxidase 4 overexpression inhibits ROS-induced cell death in diffuse large B-cell lymphoma.&nbsp;<em>Laboratory Investigation<\/em>,&nbsp;<em>98<\/em>(5), 609-619.<\/p>\n\n\n\n<p>29. Bains, V. K., &amp; Bains, R. (2015). The antioxidant master glutathione and periodontal health.&nbsp;<em>Dental research journal<\/em>,&nbsp;<em>12<\/em>(5), 389.<\/p>\n\n\n\n<p>30. Stinefelt, B., Leonard, S. S., Blemings, K. P., <em>et al<\/em>. (2005). Free radical scavenging, DNA protection, and inhibition of lipid peroxidation mediated by uric acid.&nbsp;<em>Annals of Clinical &amp; Laboratory Science<\/em>,&nbsp;<em>35<\/em>(1), 37-45.<\/p>\n\n\n\n<p>31. Mancuso, C., Pani, G., &amp; Calabrese, V. (2006). Bilirubin: an endogenous scavenger of nitric oxide and reactive nitrogen species.&nbsp;<em>Redox Report<\/em>,&nbsp;<em>11<\/em>(5), 207-213.<\/p>\n\n\n\n<p>32. Kim, K. H., Lee, B., Kim, Y. R., <em>et al<\/em>. (2018). Evaluating protective and therapeutic effects of alpha-lipoic acid on cisplatin-induced ototoxicity.&nbsp;<em>Cell death &amp; disease<\/em>,&nbsp;<em>9<\/em>(8), 827.<\/p>\n\n\n\n<p>33. Islamian, J. P., &amp; Mehrali, H. (2015). Lycopene as a carotenoid provides radioprotectant and antioxidant effects by quenching radiation-induced free radical singlet oxygen: an overview.&nbsp;<em>Cell Journal (Yakhteh)<\/em>,&nbsp;<em>16<\/em>(4), 386.<\/p>\n\n\n\n<p>34. Hussain, T., Tan, B., Yin, Y., <em>et al<\/em>. (2016). Oxidative stress and inflammation: what polyphenols can do for us?.&nbsp;<em>Oxidative medicine and cellular longevity<\/em>,&nbsp;<em>2016<\/em>(1), 7432797.<\/p>\n\n\n\n<p>35. Guo, C. H., Liu, P. J., Hsia, S., <em>et al<\/em>. (2011). Role of certain trace minerals in oxidative stress, inflammation, CD4\/CD8 lymphocyte ratios and lung function in asthmatic patients.&nbsp;<em>Annals of clinical biochemistry<\/em>,&nbsp;<em>48<\/em>(4), 344-351.<\/p>\n\n\n\n<p>36. Liguori, I., Russo, G., Curcio, F., <em>et al<\/em>. (2018). Oxidative stress, aging, and diseases.&nbsp;<em>Clinical interventions in aging<\/em>, <em>13<\/em>, 757-772.<\/p>\n\n\n\n<p>37. Niedzielska, E., Smaga, I., Gawlik, M., <em>et al<\/em>. (2016). Oxidative stress in neurodegenerative diseases.&nbsp;<em>Molecular neurobiology<\/em>,&nbsp;<em>53<\/em>(6), 4094-4125.<\/p>\n\n\n\n<p>38. Elahi, M. M., Kong, Y. X., &amp; Matata, B. M. (2009). Oxidative stress as a mediator of cardiovascular disease.&nbsp;<em>Oxidative medicine and cellular longevity<\/em>,&nbsp;<em>2<\/em>(5), 259-269.<\/p>\n\n\n\n<p>39. Sharma, V., Collins, L. B., Chen, T. H., <em>et al<\/em>. (2016). Oxidative stress at low levels can induce clustered DNA lesions leading to NHEJ mediated mutations.&nbsp;<em>Oncotarget<\/em>,&nbsp;<em>7<\/em>(18), 25377.<\/p>\n\n\n\n<p>40. \u010colak, E., &amp; Pap, D. (2021). The role of oxidative stress in the development of obesity and obesity-related metabolic disorders.&nbsp;<em>Journal of Medical Biochemistry<\/em>,&nbsp;<em>40<\/em>(1), 1.<\/p>\n\n\n\n<p>41. Qui\u00f1onez-Flores, C. M., Gonz\u00e1lez-Ch\u00e1vez, S. A., Del Rio Najera, D., <em>et al<\/em>. (2016). Oxidative stress relevance in the pathogenesis of the rheumatoid arthritis: a systematic review.&nbsp;<em>BioMed research international<\/em>,&nbsp;<em>2016<\/em>(1), 6097417.<\/p>\n\n\n\n<p>42. Tian, T., Wang, Z., &amp; Zhang, J. (2017). Pathomechanisms of oxidative stress in inflammatory bowel disease and potential antioxidant therapies.&nbsp;<em>Oxidative medicine and cellular longevity<\/em>,&nbsp;<em>2017<\/em>(1), 4535194.<\/p>\n\n\n\n<p>43. \u017darkovi\u0107, M. (2012). The role of oxidative stress on the pathogenesis of Graves\u2032 disease.&nbsp;<em>Journal of thyroid research<\/em>,&nbsp;<em>2012<\/em>(1), 302537.<\/p>\n\n\n\n<p>44. Ling, X. C., &amp; Kuo, K. L. (2018). Oxidative stress in chronic kidney disease.&nbsp;<em>Renal Replacement Therapy<\/em>,&nbsp;<em>4<\/em>(1), 1-9.<\/p>\n\n\n\n<p>45. Thimmulappa, R. K., Chattopadhyay, I., &amp; Rajasekaran, S. (2019). Oxidative stress mechanisms in the pathogenesis of environmental lung diseases. In&nbsp;<em>Oxidative Stress in Lung Diseases: Volume 2<\/em>&nbsp;(pp. 103-137). Singapore: Springer Singapore.<\/p>\n\n\n\n<p>46. Pinazo-Dur\u00e1n, M. D., Gallego-Pinazo, R., Garcia-Medina, J. J., <em>et al<\/em>. (2014). Oxidative stress and its downstream signaling in aging eyes.&nbsp;<em>Clinical interventions in aging<\/em>, <em>9<\/em>, 637-652.<\/p>\n\n\n\n<p>47. Man, A. W., Li, H., &amp; Xia, N. (2020). Impact of lifestyles (diet and exercise) on vascular health: oxidative stress and endothelial function.&nbsp;<em>Oxidative medicine and cellular longevity<\/em>,&nbsp;<em>2020<\/em>(1), 1496462.<\/p>\n\n\n\n<p>48. Epel, E., Daubenmier, J., Moskowitz, J. T., <em>et al<\/em>. (2009). Can meditation slow rate of cellular aging? Cognitive stress, mindfulness, and telomeres.&nbsp;<em>Annals of the new York Academy of Sciences<\/em>,&nbsp;<em>1172<\/em>(1), 34-53.<\/p>\n\n\n\n<p>49. Tanvetyanon, T., &amp; Bepler, G. (2008). Beta\u2010carotene in multivitamins and the possible risk of lung cancer among smokers versus former smokers: a meta\u2010analysis and evaluation of national brands.&nbsp;<em>Cancer<\/em>,&nbsp;<em>113<\/em>(1), 150-157.<\/p>\n\n\n\n<p>50. Wang, J., Sun, D., Huang, L., <em>et al<\/em>. (2021). Targeting reactive oxygen species capacity of tumor cells with repurposed drug as an anticancer therapy.&nbsp;<em>Oxidative medicine and cellular longevity<\/em>,&nbsp;<em>2021<\/em>(1), 8532940.<\/p>\n\n\n\n<p>51. Margaritelis, N. V., Paschalis, V., Theodorou, A. A., <em>et al<\/em>. (2018). Antioxidants in personalized nutrition and exercise.&nbsp;<em>Advances in Nutrition<\/em>,&nbsp;<em>9<\/em>(6), 813-823.<\/p>\n\n\n\n<p>52. Yang, F., Wendusubilige, Kong, J., Zong, Y., <em>et al<\/em>. (2023). Identifying oxidative stress-related biomarkers in idiopathic pulmonary fibrosis in the context of predictive, preventive, and personalized medicine using integrative omics approaches and machine-learning strategies.&nbsp;<em>EPMA Journal<\/em>,&nbsp;<em>14<\/em>(3), 417-442.<\/p>\n\n\n\n<p>53. Rodriguez, R., &amp; Redman, R. (2005). Balancing the generation and elimination of reactive oxygen species.&nbsp;<em>Proceedings of the National Academy of Sciences<\/em>,&nbsp;<em>102<\/em>(9), 3175-3176.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Reactive Oxygen Species (ROS) are vital for cell signaling but harmful in excess, causing oxidative stress that damages cells and contributes to aging and diseases. Maintaining balance through antioxidants and healthy lifestyle choices is key to protecting cellular health and preventing chronic conditions.<\/p>\n","protected":false},"author":2,"featured_media":255,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[13,8],"tags":[],"coauthors":[9],"class_list":["post-253","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-biochemistry","category-healthcare"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Reactive Oxygen Species and Oxidative Stress<\/title>\n<meta name=\"description\" content=\"Reactive oxygen species drive vital cell signaling, but excess levels trigger oxidative stress, damaging cells and accelerating aging and disease.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.najao.com\/learn\/reactive-oxygen-species-oxidative-stress\/\" \/>\n<link rel=\"next\" href=\"https:\/\/www.najao.com\/learn\/reactive-oxygen-species-oxidative-stress\/2\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Reactive Oxygen Species and Oxidative Stress\" \/>\n<meta property=\"og:description\" content=\"Reactive oxygen species drive vital cell signaling, but excess levels trigger oxidative stress, damaging cells and accelerating aging and disease.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.najao.com\/learn\/reactive-oxygen-species-oxidative-stress\/\" \/>\n<meta property=\"og:site_name\" content=\"Najao Inovix\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/najaoinovix\/\" \/>\n<meta property=\"article:published_time\" content=\"2025-09-03T03:12:30+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-01-25T23:15:06+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.najao.com\/learn\/wp-content\/uploads\/2025\/08\/Oxidative-stress.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1536\" \/>\n\t<meta property=\"og:image:height\" content=\"1024\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Anwesha Acharyya\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@najaoinovix\" \/>\n<meta name=\"twitter:site\" content=\"@najaoinovix\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Anwesha Acharyya\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"16 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.najao.com\\\/learn\\\/reactive-oxygen-species-oxidative-stress\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.najao.com\\\/learn\\\/reactive-oxygen-species-oxidative-stress\\\/\"},\"author\":{\"name\":\"Anwesha Acharyya\",\"@id\":\"https:\\\/\\\/www.najao.com\\\/learn\\\/#\\\/schema\\\/person\\\/212be9d306102c49ff1ea14a09c562cc\"},\"headline\":\"The Double-Edged Sword: Understanding Reactive Oxygen Species and Oxidative Stress\",\"datePublished\":\"2025-09-03T03:12:30+00:00\",\"dateModified\":\"2026-01-25T23:15:06+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/www.najao.com\\\/learn\\\/reactive-oxygen-species-oxidative-stress\\\/\"},\"wordCount\":3346,\"publisher\":{\"@id\":\"https:\\\/\\\/www.najao.com\\\/learn\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/www.najao.com\\\/learn\\\/reactive-oxygen-species-oxidative-stress\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.najao.com\\\/learn\\\/wp-content\\\/uploads\\\/2025\\\/08\\\/Oxidative-stress.jpg\",\"articleSection\":[\"Biochemistry\",\"Healthcare\"],\"inLanguage\":\"en-US\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.najao.com\\\/learn\\\/reactive-oxygen-species-oxidative-stress\\\/\",\"url\":\"https:\\\/\\\/www.najao.com\\\/learn\\\/reactive-oxygen-species-oxidative-stress\\\/\",\"name\":\"Reactive Oxygen Species and Oxidative Stress\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.najao.com\\\/learn\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/www.najao.com\\\/learn\\\/reactive-oxygen-species-oxidative-stress\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/www.najao.com\\\/learn\\\/reactive-oxygen-species-oxidative-stress\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.najao.com\\\/learn\\\/wp-content\\\/uploads\\\/2025\\\/08\\\/Oxidative-stress.jpg\",\"datePublished\":\"2025-09-03T03:12:30+00:00\",\"dateModified\":\"2026-01-25T23:15:06+00:00\",\"description\":\"Reactive oxygen species drive vital cell signaling, but excess levels trigger oxidative stress, damaging cells and accelerating aging and disease.\",\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/www.najao.com\\\/learn\\\/reactive-oxygen-species-oxidative-stress\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/www.najao.com\\\/learn\\\/reactive-oxygen-species-oxidative-stress\\\/#primaryimage\",\"url\":\"https:\\\/\\\/www.najao.com\\\/learn\\\/wp-content\\\/uploads\\\/2025\\\/08\\\/Oxidative-stress.jpg\",\"contentUrl\":\"https:\\\/\\\/www.najao.com\\\/learn\\\/wp-content\\\/uploads\\\/2025\\\/08\\\/Oxidative-stress.jpg\",\"width\":1536,\"height\":1024,\"caption\":\"Oxidative stress\"},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/www.najao.com\\\/learn\\\/#website\",\"url\":\"https:\\\/\\\/www.najao.com\\\/learn\\\/\",\"name\":\"Najao Inovix\",\"description\":\"Cooperation for Success\",\"publisher\":{\"@id\":\"https:\\\/\\\/www.najao.com\\\/learn\\\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/www.najao.com\\\/learn\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/www.najao.com\\\/learn\\\/#organization\",\"name\":\"Najao Inovix\",\"url\":\"https:\\\/\\\/www.najao.com\\\/learn\\\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/www.najao.com\\\/learn\\\/#\\\/schema\\\/logo\\\/image\\\/\",\"url\":\"https:\\\/\\\/www.najao.com\\\/learn\\\/wp-content\\\/uploads\\\/2025\\\/05\\\/Najao-Favicon.png\",\"contentUrl\":\"https:\\\/\\\/www.najao.com\\\/learn\\\/wp-content\\\/uploads\\\/2025\\\/05\\\/Najao-Favicon.png\",\"width\":2490,\"height\":2490,\"caption\":\"Najao Inovix\"},\"image\":{\"@id\":\"https:\\\/\\\/www.najao.com\\\/learn\\\/#\\\/schema\\\/logo\\\/image\\\/\"},\"sameAs\":[\"https:\\\/\\\/www.facebook.com\\\/najaoinovix\\\/\",\"https:\\\/\\\/x.com\\\/najaoinovix\",\"https:\\\/\\\/www.instagram.com\\\/najaoinovix\\\/\",\"https:\\\/\\\/www.linkedin.com\\\/company\\\/najao\\\/\",\"https:\\\/\\\/www.threads.com\\\/@najaoinovix\"]},{\"@type\":\"Person\",\"@id\":\"https:\\\/\\\/www.najao.com\\\/learn\\\/#\\\/schema\\\/person\\\/212be9d306102c49ff1ea14a09c562cc\",\"name\":\"Anwesha Acharyya\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/882127305fec3ba4deef3a7ac6b42bc431d309955b0f957171786328513420d6?s=96&d=mm&r=g05ae44e0cbcb45a2803c74414050a73f\",\"url\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/882127305fec3ba4deef3a7ac6b42bc431d309955b0f957171786328513420d6?s=96&d=mm&r=g\",\"contentUrl\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/882127305fec3ba4deef3a7ac6b42bc431d309955b0f957171786328513420d6?s=96&d=mm&r=g\",\"caption\":\"Anwesha Acharyya\"},\"url\":\"https:\\\/\\\/www.najao.com\\\/learn\\\/author\\\/anwesha\\\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Reactive Oxygen Species and Oxidative Stress","description":"Reactive oxygen species drive vital cell signaling, but excess levels trigger oxidative stress, damaging cells and accelerating aging and disease.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.najao.com\/learn\/reactive-oxygen-species-oxidative-stress\/","next":"https:\/\/www.najao.com\/learn\/reactive-oxygen-species-oxidative-stress\/2\/","og_locale":"en_US","og_type":"article","og_title":"Reactive Oxygen Species and Oxidative Stress","og_description":"Reactive oxygen species drive vital cell signaling, but excess levels trigger oxidative stress, damaging cells and accelerating aging and disease.","og_url":"https:\/\/www.najao.com\/learn\/reactive-oxygen-species-oxidative-stress\/","og_site_name":"Najao Inovix","article_publisher":"https:\/\/www.facebook.com\/najaoinovix\/","article_published_time":"2025-09-03T03:12:30+00:00","article_modified_time":"2026-01-25T23:15:06+00:00","og_image":[{"width":1536,"height":1024,"url":"https:\/\/www.najao.com\/learn\/wp-content\/uploads\/2025\/08\/Oxidative-stress.jpg","type":"image\/jpeg"}],"author":"Anwesha Acharyya","twitter_card":"summary_large_image","twitter_creator":"@najaoinovix","twitter_site":"@najaoinovix","twitter_misc":{"Written by":"Anwesha Acharyya","Est. reading time":"16 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/www.najao.com\/learn\/reactive-oxygen-species-oxidative-stress\/#article","isPartOf":{"@id":"https:\/\/www.najao.com\/learn\/reactive-oxygen-species-oxidative-stress\/"},"author":{"name":"Anwesha Acharyya","@id":"https:\/\/www.najao.com\/learn\/#\/schema\/person\/212be9d306102c49ff1ea14a09c562cc"},"headline":"The Double-Edged Sword: Understanding Reactive Oxygen Species and Oxidative Stress","datePublished":"2025-09-03T03:12:30+00:00","dateModified":"2026-01-25T23:15:06+00:00","mainEntityOfPage":{"@id":"https:\/\/www.najao.com\/learn\/reactive-oxygen-species-oxidative-stress\/"},"wordCount":3346,"publisher":{"@id":"https:\/\/www.najao.com\/learn\/#organization"},"image":{"@id":"https:\/\/www.najao.com\/learn\/reactive-oxygen-species-oxidative-stress\/#primaryimage"},"thumbnailUrl":"https:\/\/www.najao.com\/learn\/wp-content\/uploads\/2025\/08\/Oxidative-stress.jpg","articleSection":["Biochemistry","Healthcare"],"inLanguage":"en-US"},{"@type":"WebPage","@id":"https:\/\/www.najao.com\/learn\/reactive-oxygen-species-oxidative-stress\/","url":"https:\/\/www.najao.com\/learn\/reactive-oxygen-species-oxidative-stress\/","name":"Reactive Oxygen Species and Oxidative Stress","isPartOf":{"@id":"https:\/\/www.najao.com\/learn\/#website"},"primaryImageOfPage":{"@id":"https:\/\/www.najao.com\/learn\/reactive-oxygen-species-oxidative-stress\/#primaryimage"},"image":{"@id":"https:\/\/www.najao.com\/learn\/reactive-oxygen-species-oxidative-stress\/#primaryimage"},"thumbnailUrl":"https:\/\/www.najao.com\/learn\/wp-content\/uploads\/2025\/08\/Oxidative-stress.jpg","datePublished":"2025-09-03T03:12:30+00:00","dateModified":"2026-01-25T23:15:06+00:00","description":"Reactive oxygen species drive vital cell signaling, but excess levels trigger oxidative stress, damaging cells and accelerating aging and disease.","inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.najao.com\/learn\/reactive-oxygen-species-oxidative-stress\/"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.najao.com\/learn\/reactive-oxygen-species-oxidative-stress\/#primaryimage","url":"https:\/\/www.najao.com\/learn\/wp-content\/uploads\/2025\/08\/Oxidative-stress.jpg","contentUrl":"https:\/\/www.najao.com\/learn\/wp-content\/uploads\/2025\/08\/Oxidative-stress.jpg","width":1536,"height":1024,"caption":"Oxidative stress"},{"@type":"WebSite","@id":"https:\/\/www.najao.com\/learn\/#website","url":"https:\/\/www.najao.com\/learn\/","name":"Najao Inovix","description":"Cooperation for Success","publisher":{"@id":"https:\/\/www.najao.com\/learn\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.najao.com\/learn\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Organization","@id":"https:\/\/www.najao.com\/learn\/#organization","name":"Najao Inovix","url":"https:\/\/www.najao.com\/learn\/","logo":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.najao.com\/learn\/#\/schema\/logo\/image\/","url":"https:\/\/www.najao.com\/learn\/wp-content\/uploads\/2025\/05\/Najao-Favicon.png","contentUrl":"https:\/\/www.najao.com\/learn\/wp-content\/uploads\/2025\/05\/Najao-Favicon.png","width":2490,"height":2490,"caption":"Najao Inovix"},"image":{"@id":"https:\/\/www.najao.com\/learn\/#\/schema\/logo\/image\/"},"sameAs":["https:\/\/www.facebook.com\/najaoinovix\/","https:\/\/x.com\/najaoinovix","https:\/\/www.instagram.com\/najaoinovix\/","https:\/\/www.linkedin.com\/company\/najao\/","https:\/\/www.threads.com\/@najaoinovix"]},{"@type":"Person","@id":"https:\/\/www.najao.com\/learn\/#\/schema\/person\/212be9d306102c49ff1ea14a09c562cc","name":"Anwesha Acharyya","image":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/secure.gravatar.com\/avatar\/882127305fec3ba4deef3a7ac6b42bc431d309955b0f957171786328513420d6?s=96&d=mm&r=g05ae44e0cbcb45a2803c74414050a73f","url":"https:\/\/secure.gravatar.com\/avatar\/882127305fec3ba4deef3a7ac6b42bc431d309955b0f957171786328513420d6?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/882127305fec3ba4deef3a7ac6b42bc431d309955b0f957171786328513420d6?s=96&d=mm&r=g","caption":"Anwesha Acharyya"},"url":"https:\/\/www.najao.com\/learn\/author\/anwesha\/"}]}},"_links":{"self":[{"href":"https:\/\/www.najao.com\/learn\/wp-json\/wp\/v2\/posts\/253","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.najao.com\/learn\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.najao.com\/learn\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.najao.com\/learn\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.najao.com\/learn\/wp-json\/wp\/v2\/comments?post=253"}],"version-history":[{"count":4,"href":"https:\/\/www.najao.com\/learn\/wp-json\/wp\/v2\/posts\/253\/revisions"}],"predecessor-version":[{"id":449,"href":"https:\/\/www.najao.com\/learn\/wp-json\/wp\/v2\/posts\/253\/revisions\/449"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.najao.com\/learn\/wp-json\/wp\/v2\/media\/255"}],"wp:attachment":[{"href":"https:\/\/www.najao.com\/learn\/wp-json\/wp\/v2\/media?parent=253"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.najao.com\/learn\/wp-json\/wp\/v2\/categories?post=253"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.najao.com\/learn\/wp-json\/wp\/v2\/tags?post=253"},{"taxonomy":"author","embeddable":true,"href":"https:\/\/www.najao.com\/learn\/wp-json\/wp\/v2\/coauthors?post=253"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}