Sentences with phrase «oxygen radicals in»

The researchers crossed two broccoli lines and tested their progeny in terms of total phenolic content and their ability to neutralize oxygen radicals in cellular assays.

The researchers crossed two broccoli lines and tested their progeny in terms of total phenolic content and their ability to neutralize oxygen radicals in cellular assays.

Simulations with GCMs by Stevenson et al. (2000) and Grewe et al. (2001) for the 21st century indicate a decrease in the lifetime of tropospheric ozone as increasing water vapour enhances the dominant ozone sink from the oxygen radical in the 1D excited state (O (1D)-RRB- plus water (H2O) reaction.

Not exact matches

In addition to avocado oil, Primal Kitchen ® Greek Vinaigrette features organic oil of oregano, which has an exceptionally high ORAC score (oxygen radical absorbance capacity).

Trans fats react with oxygen and iron in the bloodstream to create free radicals which cause tissue damage and fry your arteries.

Antioxidant content of a food is measured in Oxygen Radical Absorbance Capacity (ORAC) units.

Palm fruit oil is also a good source of Vitamin E due to its high levels of tocopherols and tocotrienols, which are effective in removing damaging oxygen - free radicals from our bodies.

Reactive oxygen species, also called free radicals, are chemicals that typically contain oxygen, are known to be found in cigarette smoke, and cause DNA damage in cells.

Although a direct link to skin cancer has not yet been made, there is a lot of evidence that oxygen free radicals are involved in a variety of cancers, says Janna Wehrle, a biochemist at the National Institute of General Medical Sciences in Bethesda, Maryland.

These oxygen radicals interfere with cell activity and slow down metabolism, which promotes accumulation of fat in the cell.

In a new cell culture study, Sen found that sucralose appears to promote oxygen radical accumulation — a highly reactive particles that can cause disease and inflammation inside cells.

Oxidative stress is caused when oxygen - free radicals and other byproducts of cell metabolism build up in cells.

In the Osaka process, chlorite dioxide (ClO2 •) is activated under the photoirradiation to give chlorine radicals (Cl •) and singlet oxygen.

The highly reactive radical, Cl •, then abstracts a hydrogen atom of CH4 to give methyl radicals, CH3 •, which in turn react with oxygen to produce valuable methanol and formic acid.

The study «removes any question about [oxygen radicals] and antioxidants being involved in dietary restriction,» Hekimi says.

The evidence that oxygen radicals were beneficial came from experiments in which researchers gave animals an antioxidant called N - acetyl cysteine.

The researchers don't yet know the exact chemical reactions that produce the free radicals, but the work «quite solidly establishes a new role for reactive oxygen in development,» says ageing researcher Karl - Heinz Krause of the University of Geneva in Switzerland.

Taken together, the results suggest that oxygen radicals play a key role in otoconia formation, the team reports on 24 January in Current Biology.

We live in an oxygen - rich atmosphere, and radicals, particularly reactive oxygen species (ROS), are natural by - products of respiration.

In cell - based tests, Banfi and his colleagues showed that Noxo1 and Nox3 work together to produce superoxide, a precursor of oxygen free radicals.

Like a notorious suspect able to stay one step ahead of the law, corrosive oxygen compounds called free radicals are implicated in many diseases but leave little hard evidence of their handiwork.

Photodynamic therapy (PDT) in medicine usually uses a substance that reacts to light and converts the oxygen in the tissue into aggressive radicals.

The chemical feature that enables this suppression is a bond between two oxygen atoms — an unstable peroxide bridge that releases a tiny barrage in the form of free radicals (unpaired electrons) that can fracture parasite proteins the way an F5 twister tears apart barns.

The surprise to biochemists was that the enzyme, called FtmOx1, produces a highly reactive «helper» known as a free radical that assists in putting the oxygen atoms in the right place.

This metabolic demand makes brain cells particularly vulnerable to damage from oxidative stress, in which reactive oxygen species (ROS), sometimes called free radicals, exert toxic effects on cellular components.

One mechanism thought to underlie biological aging involves a molecule vital to our survival — oxygen — in what is called the free radical theory of aging.

Thus, chlorination can have important ecological functions related to the activity of microorganisms, such as dealing with dangerous oxygen radicals that form during metabolism, or being part of the chemical battle that the microorganisms are engaged in, in the competition for resources in the ground.

This caused oxidative stress — too much oxygen that damages healthy cells — and allowed the release of harmful molecules, called free radicals, which resulted in serious illness.

The nano - catalyst filter uses a technology that decomposes elements of cigarette smoke using oxygen radical, which is generated by decomposing ozone in the air on the surface of the manganese - oxide - based nano - catalyst filter.

The hydroxyl radical consisting of one hydrogen and one oxygen atom, is one of the most common free radicals in the air and is therefore often referred as the detergent of the atmosphere.

These two adjustments allow bone cells to be self - supporting in terms of energy generation and to protect themselves against an increased level of oxygen radicals.»

Physiologist Dino Giussani and colleagues at the University of Cambridge in the United Kingdom theorized that hypoxia promotes harm in the womb primarily through stress caused when the low level of oxygen creates an overload of highly reactive molecules known as free radicals.

Lower in the atmosphere, oxygen atoms and hydroxyl radicals (OH), which form when water molecules are broken apart by ultraviolet photons, oxidize methane.

Those radicals will interact with oxygen in water, present as moisture in the fabric.

Different factors, including the free radicals that are a byproduct of oxygen metabolism, result in Top1ccs becoming trapped on DNA and accumulating in cells.

The free radical theory hypothesizes that gradual accumulation of mutations in mitochondrial DNA caused by formation of reactive oxygen species (ROS) is a major contributor.

Integrated EPR / NMR imaging technology and instrumentation has the unique potential to enable in vivo mapping of free radicals, oxygen and nitric oxide along with NMR based functional and anatomic imaging.

They describe that the alterations are due to a disproportionate, though transitory, increase in the production of radical oxygen species (ROS) in the hypothalamus.

However, up to 2 % of electrons which are transferred through the respiratory chain lead to the formation of reactive oxygen species (ROS) in the form of superoxide anion (O 2 −), hydrogen peroxide (H2O2), and hydroxyl radical (OH.)

In support of this concept, we have shown that mtDNA mutations accumulate in proportion to life span in several animals, that increasing mitochondrial anti-oxidant defense systems extends lifespan, that ancient human mtDNA variants that modify energy production and oxygen radical production can modulate longevity and risk for neurodegenerative diseases, and that patients with the neurodegenerative disease, Alzheimer Disease, have increased mtDNA mutationIn support of this concept, we have shown that mtDNA mutations accumulate in proportion to life span in several animals, that increasing mitochondrial anti-oxidant defense systems extends lifespan, that ancient human mtDNA variants that modify energy production and oxygen radical production can modulate longevity and risk for neurodegenerative diseases, and that patients with the neurodegenerative disease, Alzheimer Disease, have increased mtDNA mutationin proportion to life span in several animals, that increasing mitochondrial anti-oxidant defense systems extends lifespan, that ancient human mtDNA variants that modify energy production and oxygen radical production can modulate longevity and risk for neurodegenerative diseases, and that patients with the neurodegenerative disease, Alzheimer Disease, have increased mtDNA mutationin several animals, that increasing mitochondrial anti-oxidant defense systems extends lifespan, that ancient human mtDNA variants that modify energy production and oxygen radical production can modulate longevity and risk for neurodegenerative diseases, and that patients with the neurodegenerative disease, Alzheimer Disease, have increased mtDNA mutations.

In fact, it was higher in ORAC (oxygen radical absorbance capacity), a lab test that quantifies the total antioxidant capacity of a food or food substance, than matcha, which was previously thought to be the most potent tea source of antioxidantIn fact, it was higher in ORAC (oxygen radical absorbance capacity), a lab test that quantifies the total antioxidant capacity of a food or food substance, than matcha, which was previously thought to be the most potent tea source of antioxidantin ORAC (oxygen radical absorbance capacity), a lab test that quantifies the total antioxidant capacity of a food or food substance, than matcha, which was previously thought to be the most potent tea source of antioxidants.

This spike in popularity can be attributed to its high ranking on the now - withdrawn ORAC (oxygen radical absorbance capacity) list, which formally stated its antioxidant saturation level and influenced public demand.

Free radicals are formed in tissues when they absorb oxygen donated from red blood cells.

Also well established is the fact that the glutathione antioxidant system is the most important system in our bodies (Meister, 1994) when it comes to the destruction of reactive oxygen compounds (very potent free radicals).

Free radicals are often used in the same sentence with cancer, oxidative stress is a favorite buzzword for many nutritional supplement companies, and reactive oxygen species are rarely mentioned because they're hard to pronounce.

Use of iron chelators in preventing hydroxyl radical damage: Adult Respiratory Distress Syndrome as an experimental model for the pathophysiology and treatment of oxygen - radical - mediated tissue damage.

That means astaxanthin can scavenge free radicals and singlet oxygen in your brain, eyes, joints and central nervous system in ways ordinary antioxidants simply can't.

And, we know, free radicals are unattached oxygen molecules that attack cells in a similar way that metal rusts when it comes into contact with water and oxygen.

They are believed to protect cells from free radicals, harmful oxygen molecules thought to damage cells that result in cancer, atherosclerosis, Alzheimer's disease, and rheumatoid arthritis, and they may be the underlying reason why we age.

In one recent study Achyranthes bidentata polypeptides (ABPP) separated from the aqueous extract of Achyranthes bidentata were shown to reverse production of intracellular radical oxygen species (ROS) and confer neuroprotective effects on NMDA receptors.