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Reactive Oxygen's Role in Metastasis
Researchers at the Burnham Institute for Medical Research (Burnham) have discovered that reactive oxygen species, such as superoxide and hydrogen peroxide, play a key role in forming invadopodia, cellular protrusions implicated in cancer cell migration and tumor metastasis. view more (2009-09-16)
Economical and cleaner cars with lean-burn catalytic converter
Dutch researcher Karen Scholz has taken a careful look at the properties of a new type of catalytic converter found in cars. view more (2007-07-13)
Dancing 'adatoms' help chemists understand how water molecules split
Single oxygen atoms dancing on a metal oxide slab, glowing brighter here and dimmer there, have helped chemists better understand how water splits into oxygen and hydrogen. In the process, the scientists have visualized a chemical reaction that had previously only been talked about. The new work improves our understanding of the chemistry needed... view more... (2009-03-17)
Getting to the core of the problem - CMD19CMMP with
Using the equations of quantum mechanics, which normally govern the bizarre physics that occurs at tiny atomic scales, has enabled geophysicists to answer a much larger-scale question - what the Earth`s core is made from. At the Condensed Matter physics conference on Tuesday 9 April, part of the Institute of Physics Congress in Brighton, Prof Mike... view more... (2002-03-26)
Technology for monitoring fetal oxygen during labor offers no apparent benefit
A new technology for measuring blood oxygen levels of a baby during labor-expected to provide information useful for preventing birth complications-offers no apparent benefit, report researchers in a National Institutes of Health research network. view more (2006-11-27)
Researchers reveal mystery of bacterial magnetism
Scientists at the Naval Research Laboratory (NRL) and Purdue University have shed light on one of microbiology's most fascinating mysteries-why some bacteria are naturally magnetic. view more (2006-10-23)
Penn critical-care physicians recommend strategies when facing requests to end supplemental oxygen
Critical care physicians with the University of Pennsylvania Health System address a newly-emerging ethical dilemma in medicine-what should health care professionals do when faced with a request from a patient to end the use of life-sustaining supplemental oxygen? view more (2006-09-20)
Study Identifies Risk Factors for Spread of Respiratory Infections in Hospitals
The 2003 severe acute respiratory syndrome (SARS) epidemic in China has lessons to teach hospitals on how to prevent the spread of other respiratory diseases, according to new research appearing in the April 15 issue of Clinical Infectious Diseases, currently available online. view more (2007-03-16)
Near infrared laser device can measure brain oxygen levels
A new device that uses near-infrared light to non-invasively monitor the oxygenation of the brain during surgery appears to be a promising alternative to the more invasive techniques currently in use, according to a new study by Duke University Medical Center anesthesiologists. view more (2005-10-24)
Oxygen treatment hastens memory loss in Alzheimer's mice
A 65-year-old women goes into the hospital for routine hip surgery. Six months later, she develops memory loss and is later diagnosed with Alzheimer's Disease. view more (2009-08-12)
Antioxidants may slow vision loss
Scientists at Johns Hopkins have successfully blocked the advance of retinal degeneration in mice with a form of retinitis pigmentosa (RP) by treating them with vitamin E, alpha-lipoic acid and other antioxidant chemicals. view more (2006-07-20)
Women on oxygen therapy for COPD more likely to die than men
Among patients on long-term oxygen therapy for chronic obstructive pulmonary disease (COPD), women are more likely to die from the disease than men. view more (2006-09-01)
URI scientists reveal mechanism that regulates cancer-causing gene
Two University of Rhode Island scientists have revealed how a cancer causing protein is regulated by reactive oxygen species (ROS) -- a type of stress signal. Their findings provide new insight into how this protein normally behaves in human cells and may help in the design of drugs targeting specific cancers. view more (2009-03-27)
Ceramic, heal thyself
A new computer simulation has revealed a self-healing behavior in a common ceramic that may lead to development of radiation-resistant materials for nuclear power plants and waste storage. view more (2008-04-21)
Second low-oxygen pathway hints at cancer, cardiovascular disease physiology
Researchers at the University of Pennsylvania School of Medicine have identified a second molecular pathway that promotes cell survival in low-oxygen conditions. view more (2006-02-17)
Call to reduce medical risks to refugees on repatriation
In a commentary article published this week in International Journal for Equity in Health, Siroos Mirzaei and co-authors call for medical professionals involved in the repatriation of refugees to "institute preventative measures to minimize the possible medical and psychological complications" that may result from their repatriation. view more (2003-10-31)
Particle physics fights terrorism
Scientists have developed a detector for plastic explosives. A consortium of scientists from Imperial College, other universities and industy have created the detector, which uses neutrons and is based on technologies developed for the Large Hadron Collider at CERN, Geneva. The technique overcomes problems with other devices that can confuse - for... view more... (1997-11-03)
SUMO-Wrestling with Thin Air
When the flow of blood to an organ or tissue is disrupted, cells become starved of oxygen. The inflammation that occurs as a result of this can be seen in many diseases. Inflammation in the gut is a significant event in Crohn's disease. Understanding how the body responds to oxygen deprivation (hypoxia) is the key to identifying new targets for... view more... (2003-02-05)
Does life exist on other planets?
Recent research argues that an atmosphere rich in oxygen is the most likely source of energy for complex life to exist anywhere in the Universe, thereby limiting the number of places life may exist. view more (2005-06-20)
Cool therapy reduces brain injury and death from oxygen loss in newborns
Infants born with oxygen loss who are given an innovative therapy that lowers their entire body temperature by four degrees within the first six hours of life, have a better chance of survival and lower incidence of brain injury. view more (2005-10-14)
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