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No laughing matter -- bacteria are releasing a serious greenhouse gas
Unlike carbon dioxide and methane, laughing gas has been largely ignored by world leaders as a worrying greenhouse gas. But nitrous oxide must be taken more seriously. view more (2008-03-31)
Nutrients lutein and zeaxanthin associated with reduced risk for age-related eye disease
Consuming higher levels of the yellow plant pigments lutein and zeaxanthin may be associated with a lower risk for age-related macular degeneration. view more (2007-09-11)
Structural basis for photoswitching in fluorescent proteins brought into focus
University of Oregon scientists have identified molecular features that determine the light-emitting ability green fluorescent proteins, and by strategically inserting a single oxygen atom they were able to keep the lights turned off for up to 65 hours. view more (2007-04-11)
Preventing spinal cord injury during aortic surgery
Surgery to repair aortic aneurysms often comes with a high price: neurological deficits, but new research points to a possible defense against spinal cord injury during aortic surgery. view more (2006-06-22)
X-ray images help explain limits to insect body size
Researchers at the U.S. Department of Energy's Argonne National Laboratory have cast new light on why the giant insects that lived millions of years ago disappeared. view more (2007-08-13)
Weizmann Institute Scientists Develop a Unique Approach for Splitting Water into Hydrogen and Oxygen
The design of efficient systems for splitting water into hydrogen and oxygen, driven by sunlight is among the most important challenges facing science today, underpinning the long term potential of hydrogen as a clean, sustainable fuel. view more (2009-04-07)
Long-term study shows low oxygen levels in prostate tumors can predict recurrence
Fox Chase Cancer Center researchers have discovered that low-oxygen regions in prostate tumors can be used to predict a rise in prostate-specific antigen (PSA) levels, a marker of tumor recurrence in prostate cancer. view more (2009-05-18)
FOXO factor promotes survival of oxygen-deprived cancer cells
Scientists report that an evolutionarily conserved transcription factor may have both positive and negative effects on the growth of tumors, depending on whether or not the tumor cells have enough oxygen. view more (2007-12-28)
Cancers' Sweet Tooth May Be Weakness
The pedal-to-the-metal signals driving the growth of several types of cancer cells lead to a common switch governing the use of glucose, researchers at Winship Cancer Institute of Emory University have discovered. view more (2009-11-19)
Researchers create artificial enzyme that mimics the body's internal engine
The protein cytochrome c oxidase (CcO) is the ultimate enzyme responsible for all aerobic life on Earth, from bacteria to people. view more (2007-03-16)
Seabed Research Will Have Global Significance
Sediments in the Arabian Sea will be examined by an international scientific expedition led by a researcher from the University of Edinburgh to increase understanding of the natural processes of the ocean floor and establish its significance for global cycles and climate change. Robotic research platforms will be deployed on the sea floor to study... view more... (2002-09-05)
Rising ocean temperatures, pollution have oysters in hot water
Oysters exposed to high water temperatures and a common heavy metal are unable to obtain sufficient oxygen and convert it to cellular energy. view more (2006-10-11)
Oxygen deprived brains repaired and saved
Scientists from Melbourne's Howard Florey Institute have found special proteins that protect the brain after it has been damaged by a lack of oxygen, which occurs in conditions such as stroke, perinatal asphyxia, near-drowning and traumatic brain injury. view more (2006-08-25)
Ocean 'dead zones' trigger sex changes in fish, posing extinction threat
Oxygen depletion in the world's oceans, primarily caused by agricultural run-off and pollution, could spark the development of far more male fish than female, thereby threatening some species with extinction. view more (2006-03-30)
UGA astronomers discover surprising shortage of hot gas in famed spiral galaxy NGC 1068
Spiral galaxies are the glitter of the universe. These systems of stars, dust, gas and plasma are held together by gravity but seem to pinwheel across the darkness of space. view more (2006-06-06)
Heart has enough oxygen to survive hypothermia, CPR crucial
Researchers from Norway may have ruled out insufficient oxygen supply to the heart as the critical variable in whether a mammal's heart survives while in a hypothermic state. view more (2006-07-18)
New treatment could reduce chronic lung disease in premature babies
A less traumatic way of delivering surfactant, a lung lubricant that premature babies need to help them breathe, could reduce the incidence of respiratory problems they'll have later, Medical College of Georgia physicians say. view more (2008-04-30)
Proteins by Design: Penn Biochemists Create New Protein from Scratch
No doubt proteins are complex. Most are "large" and full of interdependent branches, pockets and bends in their final folded structure. This complexity frustrates biochemists and protein engineers seeking to understand protein structure and function in order to reproduce or create new uses for these natural molecules to fight diseases or... view more... (2009-03-24)
Cooling Off Periods
Research by a team of Cambridge scientists has provided new clues about the first dramatic cooling of the Earth's climate 34 million years ago. The team, based at the University of Cambridge's Department of Earth Sciences said that ocean temperature drops were apparently not responsible for the rapid formation of ice in Antarctica. Carrie Lear,... view more... (2000-01-12)
Researchers First to 'See' Reactive Oxygen Species in Vital Enzyme
Using two simultaneous light-based probing techniques at the U.S. Department of Energy's (DOE) Brookhaven National Laboratory, a team of researchers has illuminated important details about a class of enzymes involved in everything from photosynthesis to the regulation of biological clocks. view more (2009-01-12)
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