Sentences with phrase «oxygen species found»

Not exact matches

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.

After 10 days of smoke exposure, the scientists found an overall increase in DNA damage responses to so - called reactive oxygen species within the cells.

Finally, while the underlying mechanism is unclear, the team found that having reduced NOX2 - derived reactive oxygen species also raised the risk for these autoimmune diseases.

Low - oxygen zones where large ocean species can not live have increased by close to 5.2 million square kilometers since the 1960s, the team found.

The crew found the three new species of Loricifera (jellyfish - like animals less than a millimeter long) in the sediment of L'Atalante Basin, a zone of salty, oxygen - depleted water at the bottom of the Mediterranean.

Published in the Proceedings of the National Academy of Sciences, the study found that many species from the two plateaus underwent different mutations to produce the same result: hemoglobins more adept at snaring oxygen from the lungs before sharing it with the other organs that depend on it.

The find is one of the first signs that such reactive oxygen species can build as well as destroy.

Schuerger has tried to grow hundreds of species of bacteria and fungi in the cold, low - pressure and low - oxygen conditions found on Mars.

Her research team found that cellular oxidative stress (arising because of reactive oxygen species) increases in mice exposed to THS, damaging proteins, fats and DNA, and leading to hyperglycemia (excess glucose in the blood stream) and insulinemia (excess insulin in the blood)-- a condition also called insulin resistance.

During the past years, scientists have found out how ocean acidification — in some cases combined to other factors such as rise in temperatures, eutrophication or loss of oxygen — affects isolated species.

The finding suggests scientists may have been wrong about how Earth's atmosphere got enough oxygen to sustain species (like us) that need this gas to breathe.

So while it's true that organisms living deep in the Earth are not exposed to the high - energy radiation found when you travel between planets or more hypothetically between stars, the systems that cells have evolved to repair damage done by reactive oxygen species will be useful whether they arise from rocks or from cosmic rays.

Because of the rapid growth rate of the snails, which are a widespread invasive species in India, moisture - sensitive oxygen isotope ratios in growth bands in the animals» shells preserve week - to - week rainfall rates, the researchers found.

Although many years ago we found that reactive oxygen species (ROS) are required for full expression of hippocampal LTP and memory, it is clear that the aged and diseased brain handle ROS much differently as many studies have pointed to a role for excessive ROS and oxidative stress in age - related cognitive decline and impaired memory associated with Alzheimer's disease (AD).

She also found that reactive oxygen species, (ROS), which can cause tissue damage, play a role in the process.

(15) In a second study, an active ingredient present in the Salvia miltiorrhiza root was found to have inflammation - modulating effects on TNF - alpha - induced production of reactive oxygen species (ROS), demonstrating a potential role in supporting endothelial and vascular health.

In rodents, ketogenic diets reduce reactive oxygen species in the brain34 and reduce central inflammation and reactive oxygen species in a model of multiple sclerosis.35 Two clinical papers have found that ketogenic diet feeding of 12 weeks to 6 months reduced signs of liver inflammation in obese patients with nonalcoholic fatty liver disease (in addition to improving various other physiological and biochemical variables).36, 37 Unfortunately, basic research into non-alcoholic fatty liver disease has been hampered by species differences between mice and humans in their hepatic reaction to ketogenic diets.38

Alpha Lipoic Acid Monograph Alternative Medicine Review 1998 (Aug); 3 (4): 308 — 311 ~ FULL TEXT Acting as a potent antioxidant, DHLA was found to protect rat pancreatic islet cells from destruction by reactive oxygen species.

Resveratrol was found to induce antioxidant enzymes, including superoxide dismutase (SOD), thioredoxin, glutathione peroxidase - 1, heme oxygenase - 1, and catalase, and / or inhibit reactive oxygen species (ROS) production by nicotinamide adenine dinucleotide phosphate (NADPH) oxidases (NOX)(21).

Recent clinical study found this carotenoid to be the strongest antioxidant against singlet oxygen (a reactive oxygen species that directly damages biological lipids, proteins and DNA).

Here, a person can also examine the numerous plant species found in the area, see and hear howler monkeys playing, and breathe oxygen enriched air that will likely make him or her feel a burst of energy.

This knowledge is not new; the same year as Charles Darwin published «The Origin of Species», John Tyndall, an Irish scientist, published a paper in 1859 describing how he measured the absorption of infrared radiation in his laboratory, finding that CO2 and water vapour absorbed the radiation, whereas nitrogen and oxygen, the main gases in the atmosphere, do not.

Because of the rapid growth rate of the snails, which are a widespread invasive species in India, moisture - sensitive oxygen isotope ratios in growth bands in the animals» shells preserve week - to - week rainfall rates, the researchers found.