January 7, 2026 - Oxidative stress is an imbalance between two different types of molecules in your body: free radicals and antioxidants. Specifically, it means there are too many free radicals and not enough antioxidants.

As stated before, if in excess, free radicals and oxidants give rise to a phenomenon known as oxidative stress; this is a harmful process that can negatively affect several cellular structures, such as membranes, lipids, proteins, lipoproteins, and deoxyribonucleic acid (DNA) [16–21]. Oxidative stress emerges when an imbalance exists between free radical formation and the capability of cells to clear them.

Oxidative stress is defined as a condition that reflects an imbalance between the production of reactive oxygen species (ROS) and the biological system's ability to detoxify these species or repair the resulting damage.

April 22, 2025 - Founded in 1985, the AANP represents licensed naturopathic doctors, students, and allied healthcare professionals nationwide.

1 week ago - Oxidative stress reflects an imbalance between the systemic manifestation of reactive oxygen species and a biological system's ability to readily detoxify the reactive intermediates or to repair the resulting damage. Disturbances in the normal redox state of cells can cause toxic effects through ...

NCI's Dictionary of Cancer Terms provides easy-to-understand definitions for words and phrases related to cancer and medicine.

February 18, 2025 - Oxidative stress is an imbalance of free radicals and antioxidants in the body that can lead to cell and tissue damage.

March 30, 2007 - Oxidative stress, defined as a disturbance in the balance between the production of reactive oxygen species (free radicals) and antioxidant defenses, …

July 13, 2021 - Oxidative stress is a component of many diseases, including atherosclerosis, chronic obstructive pulmonary disease, Alzheimer disease and cancer. Although numerous small molecules evaluated as antioxidants have exhibited therapeutic potential in preclinical studies, clinical trial results have been disappointing.

October 18, 2023 - Oxidative stress is a natural process that occurs when there is an imbalance between free radicals, which are unstable molecules, and antioxidants in the body. Such imbalances can be swayed by various factors, including our lifestyle choices ...

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Oxidative stress is a condition where elevated level of reactive oxygen species (ROS) exceeds the cellular counteracting antioxidant capacity and thereby causes damages to biological molecules such as lipid, proteins, DNA, and etc. Prolonged oxidative stress is linked to a number of physiological ...

October 5, 2023 - Factors like overeating, poor diet, inflammation, stress, pollution, and hyperglycemia can increase ROS production beyond what antioxidants can neutralize. Oxidative stress is linked to inflammation, insulin resistance, and complications of diabetes and metabolic dysfunction.

May 27, 2020 - Conversely, in pathological or stress conditions, ROS overwhelms antioxidant systems leading to an imbalance, which, in turn, causes oxidative stress and irreversible changes in cell compounds, including proteins, carbohydrates and lipids, in addition to being able to disrupt normal cellular-signaling mechanisms (Birben et al., 2012; Zal et al., 2014; Salehi et al., 2018; Sharifi-Rad et al., 2018).

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April 26, 2023 - At lower concentrations, they have beneficial effects and indulged in different physiological processes such as redox regulation, mitogenic responses, cellular signaling pathways, and an immune function while at a higher level, these reactive species generate nitrosative and oxidative stress (Phaniendra et al., 2015).

The global concept of “Oxidative Stress” is defined as “an imbalance between oxidants and antioxidants in favor of the oxidants, leading to a disruption of redox signaling and control and/or molecular damage” [4,5]. It has developed from its initial formulation in 1985 [1] to incorporate ...

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Oxidative stress, resulting from the excessive intracellular accumulation of reactive oxygen species (ROS), reactive nitrogen species (RNS), and other free radical species, contributes to the onset and progression of various diseases, including ...