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.

Four or more coffees reduce risk of womb cancer

According to a new study drinking four or more cups of coffee a day may reduce risk of developing endometrial cancer or womb cancer by almost 25 per cent.

1 Jan 2012

Researchers decode and characterize DNA repair mechanism

Oxidative stress is the cause of many serious diseases such as cancer, Alzheimer's, arteriosclerosis and diabetes. It occurs when the body is exposed to excessive amounts of electrically charged, aggressive oxygen compounds. These are normally produced during breathing and other metabolic processes, but also in the case of ongoing stress, exposure to UV light or X-rays. If the oxidative stress is too high, it overwhelms the body's natural defences. The aggressive oxygen compounds destroy genetic material, resulting in what are referred to as harmful 8-oxo-guanine base mutations in the DNA.

28 Dec 2011

Study unveils mechanisms behind neurological effects of penitrem A

The mould fungus Penicillium crustosum occurs relatively frequently in food and animal fodder stored in temperate conditions. This mould produces powerful neurotoxins, for example penitrem A, which causes symptoms that are difficult to distinguish from those of other neurological diseases.

16 Dec 2011

HDE and DEP exposure can lead to development of asthma

A study conducted by researchers at Boston University School of Medicine (BUSM) has found that diesel exhaust particulates (DEP) and house dust extract (HDE) causes pulmonary inflammation that aggravates asthma.

15 Dec 2011

Antioxidant can delay onset of all indicators of Alzheimer's

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.

15 Dec 2011

Molecular signature indicative of hypoxia predicts progression to AD

A study led by Research Professor Matej Ore-ič from VTT Technical Research Centre of Finland suggests that Alzheimer's disease is preceded by a molecular signature indicative of hypoxia and up-regulated pentose phosphate pathway.

15 Dec 2011

Reata, Abbott partner to develop and commercialize AIMs for chronic diseases

Abbott and Reata Pharmaceuticals today announced that they have entered into a worldwide collaboration to jointly develop and commercialize Reata's portfolio of second-generation oral antioxidant inflammation modulators.

12 Dec 2011

Scientists identify importance of novel protein-regulating mechanism

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 up opportunities to develop new types of drugs for diseases such as cancer.

12 Dec 2011

Fatty livers burn more fat, not less

When our livers become loaded with fat, it isn't because they are slacking. A new study of human patients in the December Cell Metabolism shows that fatty livers actually burn more fat, not less. All that "hard work" may be at the root of the organ damage that comes with nonalcoholic fatty liver disease (NAFLD), a condition associated with insulin resistance that affects about one in three in the U.S. population.

6 Dec 2011

Study evaluates whether genetic GST polymorphisms increase risk of ALD in alcoholics

It has been widely observed that only a small percentage of alcoholics develop cirrhosis of the liver, the most advanced form of alcoholic liver disease (ALD); the reason why all alcoholics do not develop such disease is not known. The present study from Spain, that includes original work and a meta-analysis, evaluates whether genetic polymorphisms that determine levels of glutathione-S-transferases (GST) relate to the risk of developing ALD among alcoholics.

6 Dec 2011

Biosensors can detect oxidant production in living organism

Arterial calcification and coronary heart disease, neurodegenerative diseases such as Parkinson's and Alzheimer's, cancer and even the aging process itself are suspected to be partially caused or accelerated by oxidative stress. Oxidative stress arises in tissues when there is an excess of what are called reactive oxygen species.

6 Dec 2011

Researchers discover why men more likely than women to develop squamous cell skin cancer

Men are three times more likely than women to develop a common form of skin cancer but medical science doesn't know why. A new study may provide part of the answer.

2 Dec 2011

CWRU receives NHLBI grant to study sleep apnea as possible cause of AF

Case Western Reserve University School of Medicine has received a $3.8 million grant from the National Heart, Lung, and Blood Institute (NHLBI) to study sleep apnea as a possible cause of atrial fibrillation (AF), the most commonly diagnosed type of arrhythmia, or irregular heart rhythm.

22 Nov 2011

Sluggish recycling of protein-slicing enzyme could promote Alzheimer's

Sluggish recycling of a protein-slicing enzyme could promote Alzheimer's disease, according to a study published online on November 21 in The Journal of Cell Biology.

22 Nov 2011

H2S plays a major role in protecting bacteria from effects of different antibiotics

Although scientists have known for centuries that many bacteria produce hydrogen sulfide (H2S) it was thought to be simply a toxic by-product of cellular activity. Now, researchers at NYU School of Medicine have discovered H2S in fact plays a major role in protecting bacteria from the effects of numerous different antibiotics.

18 Nov 2011

Health benefits of nut consumption

A recent scientific study has revealed the relationship between nut consumption and a high level of serotonin metabolites (an important neurotransmitter) in patients with metabolic syndrome, who are at high risk of cardiovascular disease.

11 Nov 2011

IRCM peptide chemist listed as inventor on two U.S. patents

In 2010, after more than 10 years of basic research, Dr. Peter W. Schiller, a world-renowned peptide chemist and Director of the Chemical Biology and Peptide research unit at the Institut de recherches cliniques de Montr-al (IRCM), and his international collaborators were the listed inventors on two U.S. patents awarded to the institute and covering different uses of a unique class of peptide compounds initially synthesized in Dr. Schiller's laboratory at the IRCM.

10 Nov 2011

People with recurrent depression, chronic stress have shorter telomeres in WBCs

People with recurrent depressions or those exposed to chronic stress exhibits shorter telomeres in white blood cells. This is shown by a research team at Umeå University in a coming issue of Biological Psychiatry.

9 Nov 2011

Maryland anesthesiologist named 2011 Researcher of the Year

Often on the mind of Gary Fiskum, PhD, are the more than 250,000 people in the U.S. who get resuscitated from cardiac arrest each year, the 6 million living with traumatic brain injuries, and the wounded warriors whose brain whose brains sustain enormous G-forces from roadside bombs in the war zone.

9 Nov 2011

Potential fish enzyme biomarker for environmental toxins

The level of the enzyme carbonyl reductase (CBR) is elevated in the livers of fish that have been exposed to cleaned wastewater. Scientists at the University of Gothenburg can show that CBR has properties that may make it suitable to be used as a biomarker, an early warning signal of environmental toxins. The aim of the project is to achieve better environmental monitoring.

9 Nov 2011