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Latest Reactive oxygen species Stories

2012-05-28 05:35:49

(Ivanhoe Newswire) -- A new study shows that oxidative stress may put obese patients at an increased risk of developing kidney damage after heart surgery. Oxidative stress generates harmful unstable reactive oxygen molecules. The study is appearing in the upcoming issue of the Journal of the American Society of Nephrology (JASN). More studies are needed to see if effective antioxidants can help reduce the risk. Acute kidney injury (AKI) affects 5% to 30% of heart surgery patients. AKI is...

2012-04-10 13:50:29

According to new study published in the Journal of Alzheimer's Disease Alzheimer's disease (AD) is now the sixth leading cause of death among Americans, affecting nearly 1 in 8 people over the age of 65. There is currently no treatment that alters the course of this disease. However, an increasing amount of evidence suggests that changes in the way the body handles iron and other metals like copper and zinc may start years before the onset of AD symptoms. A new study shows that reducing...

2012-04-10 12:25:54

According to new study published in the Journal of Alzheimer´s Disease Alzheimer´s disease (AD) is now the sixth leading cause of death among Americans, affecting nearly 1 in 8 people over the age of 65. There is currently no treatment that alters the course of this disease. However, an increasing amount of evidence suggests that changes in the way the body handles iron and other metals like copper and zinc may start years before the onset of AD symptoms. A new study shows that...

2012-02-02 22:41:13

Scientists at the University Medical Center in Mainz prove multiple DNA repair defect in monocytes Scientists working with Professor Bernd Kaina of the Institute of Toxicology at the Medical Center of Johannes Gutenberg University Mainz have demonstrated for the first time that certain cells circulating in human blood — so-called monocytes — are extremely sensitive to reactive oxygen species (ROS). They were also able to clarify the reason for this: ROS are aggressive forms of...

2012-01-17 13:24:51

Scientists at the University of York have made a significant step forward in isolating the cause of Parkinson's disease in younger adults. Research by a team in the University´s Department of Biology found evidence that movement disorders, including tremor and slowness of movement (bradykinesia), associated with Parkinson´s disease (PD) may be due to a defect in energy production in the nervous system. The advance may help to identify young adults who may be susceptible to the...

2011-12-20 18:12:13

It's rubbed on the skin to reduce signs of aging and consumed by athletes to improve endurance but scientists now have the first evidence of one of vitamin E's normal body functions. The powerful antioxidant found in most foods helps repair tears in the plasma membranes that protect cells from outside forces and screen what enters and exits, Georgia Health Sciences University researchers report in the journal Nature Communications. Everyday activities such as eating and exercise can...

2011-12-14 12:06:01

When you cut an apple and leave it out, it turns brown. Squeeze the apple with lemon juice, an antioxidant, and the process slows down. Simply put, that same "browning" process-known as oxidative stress-happens in the brain as Alzheimer's disease sets in. The underlying cause is believed to be improper processing of a protein associated with the creation of free radicals that cause oxidative stress. Now, a study by researchers in the University of Georgia College of Pharmacy has shown...

2011-12-12 12:08:56

For years, science has generally considered the phosphorylation of proteins -- the insertion of a phosphorous group into a protein that turns it on or off -- as perhaps the factor regulating a range of cellular processes from cell metabolism to programmed cell death. Now, scientists from the Florida campus of The Scripps Research Institute have identified the importance of a novel protein-regulating mechanism -- called sulfenylation -- that is similar to phosphorylation and may, in fact, open...

2011-12-02 01:13:30

A diametric shift in the levels of two proteins involved in folding, moving and cutting other proteins enables accumulation of the destructive brain plaque found in Alzheimer's disease, researchers report. VPS35 is a protein that folds others into specific positions to unleash their functions. When levels are reduced as they are in aging, it unleashes the normally dormant BACE1, a protein responsible for beta amyloid plaque production, Georgia Health Sciences University researchers report...


Word of the Day
grass-comber
  • A landsman who is making his first voyage at sea; a novice who enters naval service from rural life.
According to the OED, a grass-comber is also 'a sailor's term for one who has been a farm-labourer.'