Reactive Oxygen Species (ROS) News and Research

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Findings point to new therapy against prostate and other cancers

Scientists from the Florida campus of The Scripps Research Institute (TSRI) have found that a drug candidate with anticancer potential can be activated by one of the body's natural responses to cellular stress. Once activated, the agent can kill prostate cancer cells.

11 Jun 2015

$Study analyses advantages of using fractions of ejaculate in IVF$

Study analyses advantages of using fractions of ejaculate in IVF

Sperm in the first fraction of ejaculate are more numerous, move more and present better quality DNA than those lagging behind. This is the conclusion of a study led by the Ginemed fertility clinic, which confirms that while the objective of the first fraction is to fertilise the egg, the second phase is so that no sperm from any other male has a chance to fertilise it.

27 May 2015

Vitamin E helps build strong muscles

Body builders have it right: vitamin E does help build strong muscles, and scientists appear to have figured out one important way it does it.

19 May 2015

SGK1 enzyme protects brain cells in animal models of Parkinson's disease

Scientists from the Florida campus of The Scripps Research Institute have found how a widely known but little-studied enzyme protects brain cells in models of Parkinson's disease.

16 Apr 2015

MRSA bacteria exposed to cigarette smoke become more resistant to antimicrobial peptides

Methicillin-resistant Staphylococcus aureus (MRSA), an antibiotic-resistant superbug, can cause life-threatening skin, bloodstream and surgical site infections or pneumonia. Researchers at the University of California, San Diego School of Medicine now report that cigarette smoke may make matters worse.

3 Apr 2015

Scientists develop new type of carrier that combines photosensitivity and magnetism to fight cancer

By combining, in a liposome, magnetic nanoparticles and photosensitizers that are simultaneously and remotely activated by external physical stimuli (a magnetic field and light), scientists at the Laboratoire Matière et Systèmes Complexes (CNRS/Université Paris Diderot) and the Laboratoire Physicochimie des Electrolytes et Nanosystèmes Interfaciaux (CNRS/UPMC), obtained total tumor regression in mice.

2 Apr 2015

Targeted nanomedicines could help prevent heart attacks caused by atherosclerosis

Nanometer-sized "drones" that deliver a special type of healing molecule to fat deposits in arteries could become a new way to prevent heart attacks caused by atherosclerosis, according to a study in pre-clinical models by scientists at Brigham and Women's Hospital and Columbia University Medical Center.

19 Feb 2015

Study findings could help scientists better design silicon materials to improve chemotherapy drug delivery

A team of Israeli and American researchers have found that silicon nanomaterials used for the localized delivery of chemotherapy drugs behave differently in cancerous tumors than they do in healthy tissues. The findings could help scientists better design such materials to facilitate the controlled and targeted release of the chemotherapy drugs to tumors.

16 Feb 2015

Scientists find that treating the uninjured side of brain can maximize stroke recovery

To maximize stroke recovery, researchers may want to focus more on ways to support the side of the brain where the injury didn't occur, scientists report.

13 Feb 2015

Researchers identify RGS6 protein that controls both alcohol-seeking behavior and organ damage

What if there was a drug that could simultaneously curb a person's craving for alcohol while also protecting their heart and liver from alcohol's damaging effects?

12 Feb 2015

Diabetes medication can help white blood cells fight bacterial infections

Pioglitazone, a medication approved for treatment of type 2 diabetes, can help bypass genetic defects in chronic granulomatous disease to help white blood cells fight bacterial infections, according to researchers at National Jewish Health.

12 Feb 2015

Study: Green tea compound may activate a cycle that kills oral cancer cells

A compound found in green tea may trigger a cycle that kills oral cancer cells while leaving healthy cells alone, according to Penn State food scientists. The research could lead to treatments for oral cancer, as well as other types of cancer.

28 Jan 2015

Upregulating heme-oxygenase with hemin helps improve pericardial adipocyte morphology, function

Scientists at the University of Saskatchewan College of Medicine, Department of Physiology, Saskatoon, Canada, led by Dr. Joseph Fomusi Ndisang have determined that upregulating heme-oxygenase with hemin improves pericardial adipocyte morphology and function.

27 Jan 2015

Atmospheric oxygen may play role in lung carcinogenesis, new study suggests

The ancient physician/alchemist, Paracelsus, said: "The dose makes the poison." According to a new study published in PeerJ, even oxygen may fall prey to the above adage. While essential to human life, aspects of oxygen metabolism may promote cancer. Capitalizing on the inverse relationship of oxygen concentration with elevation, researchers found lower rates of lung cancer at higher elevations, a trend that did not extend to non-respiratory cancers, suggesting that carcinogen exposure occurs via inhalation.

14 Jan 2015

Researchers examining new antioxidant-based therapeutic approaches to hypertension

High blood pressure affects more than 70 million Americans and is a major risk factor for stroke, heart failure and other renal and cardiovascular diseases. Two University of Houston College of Pharmacy researchers are examining the role of intrinsic antioxidant pathways in mitigating hypertension.

17 Dec 2014

Fenofibrate benefits in diabetic retinopathy mediated through PPARα

Peroxisome proliferator–activated receptor α exerts protective effects on retinal pericytes, shows research that explains why fenofibrate is protective against diabetic retinopathy.

1 Dec 2014

Researchers identify mechanism linked to brain damage

Researchers have discovered a mechanism linked to the brain damage often suffered by stroke victims--and are now searching for drugs to block it.

27 Nov 2014

Proper copper levels essential to health of the brain at rest, new study finds

In recent years it has been established that copper plays an essential role in the health of the human brain. Improper copper oxidation has been linked to several neurological disorders including Alzheimer's, Parkinson's, Menkes' and Wilson's.

27 Nov 2014

New nanoparticles can simultaneously perform MRI and fluorescent imaging in living animals

MIT chemists have developed new nanoparticles that can simultaneously perform magnetic resonance imaging (MRI) and fluorescent imaging in living animals. Such particles could help scientists to track specific molecules produced in the body, monitor a tumor's environment, or determine whether drugs have successfully reached their targets.

19 Nov 2014

Chaetocin synergistic with TKIs against CML cells

Chaetocin, a mycotoxin that increases oxidative stress, can complement the activity of tyrosine kinase inhibitors in chronic myeloid leukaemia by overcoming innate resistance mediated by secreted bone marrow stromal cytokines and growth factors, researchers report.

14 Nov 2014