Definitions for oxidative stress
ox·ida·tive stress

WikipediaRate this definition:0.0 / 0 votes

1. Oxidative stress

   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 the production of peroxides and free radicals that damage all components of the cell, including proteins, lipids, and DNA. Oxidative stress from oxidative metabolism causes base damage, as well as strand breaks in DNA. Base damage is mostly indirect and caused by the reactive oxygen species generated, e.g., O2− (superoxide radical), OH (hydroxyl radical) and H2O2 (hydrogen peroxide). Further, some reactive oxidative species act as cellular messengers in redox signaling. Thus, oxidative stress can cause disruptions in normal mechanisms of cellular signaling. In humans, oxidative stress is thought to be involved in the development of attention deficit hyperactivity disorder, cancer, Parkinson's disease, Lafora disease, Alzheimer's disease, atherosclerosis, heart failure, myocardial infarction, fragile X syndrome, sickle-cell disease, lichen planus, vitiligo, autism, infection, chronic fatigue syndrome, and depression; however, reactive oxygen species can be beneficial, as they are used by the immune system as a way to attack and kill pathogens. Short-term oxidative stress may also be important in prevention of aging by induction of a process named mitohormesis, and is required to initiate stress response processes in plants.

WikidataRate this definition:0.0 / 0 votes

1. Oxidative stress

   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 the production of peroxides and free radicals that damage all components of the cell, including proteins, lipids, and DNA. Further, some reactive oxidative species act as cellular messengers in redox signaling. Thus, oxidative stress can cause disruptions in normal mechanisms of cellular signaling. In humans, oxidative stress is thought to be involved in the development of cancer, Parkinson's disease, Alzheimer's disease, atherosclerosis, heart failure, myocardial infarction, fragile X syndrome, Sickle Cell Disease, lichen planus, vitiligo, autism, and chronic fatigue syndrome. However, reactive oxygen species can be beneficial, as they are used by the immune system as a way to attack and kill pathogens. Short-term oxidative stress may also be important in prevention of aging by induction of a process named mitohormesis.

U.S. National Library of MedicineRate this definition:0.0 / 0 votes

1. Oxidative Stress

   A disturbance in the prooxidant-antioxidant balance in favor of the former, leading to potential damage. Indicators of oxidative stress include damaged DNA bases, protein oxidation products, and lipid peroxidation products (Sies, Oxidative Stress, 1991, pxv-xvi).

How to pronounce oxidative stress?

1. Alex

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How to say oxidative stress in sign language?

Numerology

1. Chaldean Numerology

   The numerical value of oxidative stress in Chaldean Numerology is: 9

2. Pythagorean Numerology

   The numerical value of oxidative stress in Pythagorean Numerology is: 2

Examples of oxidative stress in a Sentence

1. Jaime Hart:

   Studies have shown that pollution increases inflammation and oxidative stress, both of which have been linked to increased mortality, those studies weren't done in lung cancer patients, but it is reasonable to think that similar things may be occurring.

2. Maryann McLaughlin:

   When you have increased fat or adiposity – the term we use in the body – it can cause increased inflammation within the body, it’s something called oxidative stress, which makes your body have to work a little bit harder, which makes the blood pressure go up.

3. Dean Ornish:

   Because they all share the same underlying biological mechanisms: chronic inflammation, oxidative stress, changes in the microbiome, changes in gene expression, overstimulation of the sympathetic nervous system, changes in immune function and so on, and in turn, each one of these is directly influenced by what we eat, how we respond to stress, how much exercise we get and how much love and support we have.

4. Elena Paravantes:

   Greens such as spinach, kale, collard greens, chard, etc. are a nutrient-dense food. They are rich in vitamins and antioxidants that can reduce oxidative stress, research has shown that consuming at least one serving of greens a day resulted in slower cognitive decline as measured on tests for memory and thinking skills.

5. Amy Adams:

   Avocado contains healthy monounsaturated fats in addition to potassium and magnesium, both of which help to maintain a healthy blood pressure, berries, such as blueberries, blackberries and raspberries are high in fiber, antioxidants and phytonutrients, all of which work to lower oxidative stress and inflammation in the body.

References

1. ^ Wikipedia
   https://en.wikipedia.org/wiki/Oxidative_Stress
2. ^ Wikidata
   https://www.wikidata.org/w/index.php?search=oxidative stress