Oxidative Stress News and Research

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Oxidative Stress is a condition in which antioxidant levels are lower than normal. Antioxidant levels are usually measured in blood plasma.

Inhaled nitric oxide reduces adverse effects of stored blood transfusion in mice

Inhaled nitric oxide reduced the adverse effects of transfusing stored blood in mice, according to a study from the December issue of Anesthesiology. Researchers found that inhaled nitric oxide reduced tissue injury and improved short-term survival in mice that were resuscitated with a stored blood transfusion after hemorrhagic shock.

22 Nov 2012

IL-13 receptor system could play a major role in Parkinson's

Deciphering what causes the brain cell degeneration of Parkinson's disease has remained a perplexing challenge for scientists. But a team led by scientists from The Scripps Research Institute (TSRI) has pinpointed a key factor controlling damage to brain cells in a mouse model of Parkinson's disease.

20 Nov 2012

Study: Regular exercise before, during pregnancy could have beneficial effects for women

Contrary to popular thought, regular exercise before and during pregnancy could have beneficial effects for women that develop high blood pressure during gestation, human physiology professor Jeff Gilbert said, summarizing a new study by his research team that appears in the December issue of Hypertension, a journal of the American Heart Association.

16 Nov 2012

Simple iron control mechanism can prevent development of severe forms of malaria

Malaria is a life-threatening condition that exposes approximately half of the world's population to the risk of developing a severe and often lethal form of disease. In a study published in the latest issue of the journal Cell Host & Microbe*, Miguel Soares and his team at Instituto Gulbenkian de Ci-ncia (IGC), Portugal, discovered that the development of severe forms of malaria can be prevented by a simple mechanism that controls the accumulation of iron in tissues of the infected host.

15 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

Oxidative stress occurs in genetic models of alpha-1-antitrypsin deficiency

A team of researchers under the direction of Dr. Jeffrey Teckman in the Department of Pediatrics at St. Louis University, have demonstrated that oxidative stress occurs in a genetic model of alpha-1-antitrypsin deficiency.

30 Oct 2012

Scientists identify mechanism via Top2b enzyme that drives doxorubicin-induced heart damage

Doxorubicin, a 50-year-old chemotherapy drug still in widespread use against a variety of cancers, has long been known to destroy heart tissue, as well as tumors, in some patients.

29 Oct 2012

Vitamin-rich berries may help prevent glandular ulcers in horses

Adding sea buckthorn berries to the diet of horses could reduce the incidence of glandular gastric ulcers, report researchers.

24 Oct 2012

Thiol peroxidase involved in S. pneumoniae defenses

The Streptococcus pneumoniae bacteria defends itself from high levels of hydrogen peroxide with the help of thiol peroxidase, research shows.

22 Oct 2012

Nine Sydney researchers to receive funding for biomedical research projects

The Ramaciotti Foundations will award nearly $645,000 in grants to nine Sydney researchers at a gala dinner tonight, to support continued outstanding biomedical research. The Ramaciotti Foundations will award over $1.6 million to 23 recipients at the annual awards evening in Brisbane.

16 Oct 2012

Male infertility linked to an enzyme complex issue

An enzyme complex present in sperm plasma membranes plays an important role in the overproduction of reactive oxygen species and oxidative stress in sperm with abnormal morphology, researchers have shown.

15 Oct 2012

Antioxidant defense reduced in schizophrenia, bipolar disorder

Results from a Tunisian study suggest that the antioxidant defense system is altered in patients with schizophrenia and bipolar disorder.

11 Oct 2012

Age impacts salivary markers of oxidative stress, oral pathology

Age has a significant impact on the variance of salivary markers of oxidative stress, and could shed light on the pathogenesis of oral diseases, report Slovakian researchers.

4 Oct 2012

Zinc deficiency mechanism associated with many health problems, aging

A new study has outlined for the first time a biological mechanism by which zinc deficiency can develop with age, leading to a decline of the immune system and increased inflammation associated with many health problems, including cancer, heart disease, autoimmune disease and diabetes.

2 Oct 2012

Omega-3 fatty acid supplements could slow key biological process linked to aging

Taking enough omega-3 fatty acid supplements to change the balance of oils in the diet could slow a key biological process linked to aging, new research suggests.

2 Oct 2012

Combination of two neuroprotective therapies shows promise against Alzheimer's

The combination of two neuroprotective therapies, voluntary physical exercise, and the daily intake of melatonin has been shown to have a synergistic effect against brain deterioration in rodents with three different mutations of Alzheimer's disease.

27 Sep 2012

Positive results from Edison’s EPI-743 phase 2A study on Leigh Syndrome

Edison Pharmaceuticals today announced positive results of a recently completed phase 2A study entitled, "Prospective Open Label Study of EPI-743 in Children with Leigh Syndrome (Subacute Necrotizing Encephalomyelopathy)."

13 Sep 2012

Molecular insight into oxygen sensing mechanism

The study of an oxygen-sensing bacterial regulatory protein by chemistry researchers at the University of Georgia has provided molecular insight into the oxygen sensing mechanism, which could ultimately lead to a better understanding of the ageing process and new treatments for human diseases such cancer, Parkinson's and Alzheimer's.

12 Sep 2012

Serum-concentration of antioxidants is significantly lower in patients with mild dementia

Forgetfulness, lack of orientation, cognitive decline… about 700, 000 Germans suffer from Alzheimer's disease (AD). Now researchers from the University of Ulm, among them the Epidemiologist Professor Gabriele Nagel and the Neurologist Professor Christine von Arnim, have discovered that the serum-concentration of the antioxidants vitamin C and beta-carotene are significantly lower in patients with mild dementia than in control persons.

12 Sep 2012

Insight into how tissue stiffness drives cancer

The stiffness of breast tissue is increasingly recognized as an important factor explaining the onset of breast cancer. Stiffening induces molecular changes that promote cancerous behavior in cells. Bioengineering studies have found that breast cancer cells grown on a 3-D gel have enhanced cell replication and decreased organization as rigidity increases.

10 Sep 2012