Reactive Oxygen Species (ROS) News and Research

RSS

Researchers unravel dual role of tumor necrosis factor in TB

Tumor necrosis factor - normally an infection-fighting substance produced by the body- can actually heighten susceptibility to tuberculosis if its levels are too high.

12 Apr 2013

New research reveals how autophagy keeps neural stem cells to replace damaged brain, nerve cells

Deep inside your brain, a legion of stem cells lies ready to turn into new brain and nerve cells whenever and wherever you need them most. While they wait, they keep themselves in a state of perpetual readiness - poised to become any type of nerve cell you might need as your cells age or get damaged.

11 Apr 2013

Molecular effects of insufficient sleep uncovered

Results from a sleep laboratory study show striking changes in gene expression associated with sleep deprivation.

27 Feb 2013

Vanderbilt investigators report new insights into workings of calprotectin

On the front lines of our defenses against bacteria is the protein calprotectin, which "starves" invading pathogens of metal nutrients. Vanderbilt investigators now report new insights to the workings of calprotectin - including a detailed structural view of how it binds the metal manganese.

22 Feb 2013

Resveratrol may protect against hearing and cognitive decline

Resveratrol, a substance found in red grapes and red wine, may have the potential to protect against hearing and cognitive decline, according to a published laboratory study from Henry Ford Hospital in Detroit.

21 Feb 2013

Oxidized CaMKII may increase risk of death in diabetics following heart attack

Having diabetes doubles a person's risk of dying after a heart attack, but the reason for the increased risk is not clear. A new University of Iowa study suggests the link may lie in the over-activation of an important heart enzyme, which leads to death of pacemaker cells in the heart, abnormal heart rhythm, and increased risk of sudden death in diabetic mice following a heart attack.

18 Feb 2013

Inhibiting JNK enzyme protects against ischemic/reperfusion injury

Using two different compounds they developed, scientists from the Florida campus of The Scripps Research Institute (TSRI) have been able to show in animal models that inhibiting a specific enzyme protects heart cells and surrounding tissue against serious damage from heart attacks.

10 Feb 2013

Milk thistle constituent shows promising skin protection properties

Silibinin, a key component of milk thistle seeds, can help protect against skin damage caused by ultraviolet B radiation, show study findings published in Molecular Carcinogenesis.

8 Feb 2013

Physical activity levels may affect men’s semen quality

The quality of young men’s sperm may be influenced by how active their lifestyle is, report researchers.

6 Feb 2013

Silibinin kills skin cells mutated by UVA radiation and protects against cancer

A pair of University of Colorado Cancer Center studies published this month show that the milk thistle extract, silibinin, kills skin cells mutated by UVA radiation and protects against damage by UVB radiation - thus protecting against UV-induced skin cancer and photo-aging.

31 Jan 2013

Novel infertility mechanism suggested in men with metabolic syndrome

Men diagnosed with the metabolic syndrome appear to have reduced fertility potential despite the absence of leucocytospermia, report researchers.

21 Jan 2013

Coenzyme Q10 supplement may boost male fertility

Taking a 3-month course of coenzyme Q10 supplements could improve semen quality among infertile men, show researchers.

16 Jan 2013

Periodontal disease may predispose men to impotence

Men in their thirties with chronic gum disease are at significantly increased risk for erectile dysfunction, suggests a study by Turkish researchers.

7 Jan 2013

Paroxetine could treat vascular complications of diabetes

University of Texas Medical Branch at Galveston researchers have discovered that the commonly used antidepressant drug paroxetine could also become a therapy for the vascular complications of diabetes.

14 Dec 2012

Arginase, IDO could hold clues to help 79 million Americans with prediabetes

Two enzymes that are elevated in prediabetes could hold clues to helping the 79 million Americans with the condition avoid serious vascular complications and maybe even identify those most at risk for full-blown diabetes, researchers say.

13 Dec 2012

Scientists define key underlying process implicated in multiple sclerosis

Scientists at the Gladstone Institutes have defined for the first time a key underlying process implicated in multiple sclerosis (MS)-a disease that causes progressive and irreversible damage to nerve cells in the brain and spinal cord. This discovery offers new hope for the millions who suffer from this debilitating disease for which there is no cure.

30 Nov 2012

Two studies investigate role of oxygen in cell transplantation

Two studies published in the current issue of Cell Transplantation, now freely available on-line, investigate the role of oxygen in cell transplantation.

17 Nov 2012

Tug of war between Hsp70 and 90 determines how much the body makes of superoxide

Two proteins are in a tug of war that determines how much the body makes of superoxide, a highly reactive and potentially destructive product of oxygen that's dramatically elevated in cardiovascular disease, researchers report.

16 Nov 2012

D737 compound restores motor function and longevity in fruit flies with Alzheimer's

An efficient, high-volume technique for testing potential drug treatments for Alzheimer's disease uncovered an organic compound that restored motor function and longevity to fruit flies with the disease, according to new research that could help put the search for an effective Alzheimer's drug on a faster track.

16 Nov 2012

Antioxidant imbalance in abnormal sperm

An imbalance exists in oxidative stress markers, such as reactive nitrogen species, reactive oxygen species, and total antioxidant capacity, in infertile men with abnormal semen parameters, report researchers.

13 Nov 2012