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Adaptation to oxygen deprivation elucidates tumor physiology
Two new studies in the March Cell Metabolism reveal a survival mechanism by which cells adapt to oxygen starvation by ratcheting down their demand. view more (2006-03-08)
Prenatal nicotine exposure reduces breathing response of newborns
Exposure to nicotine the equivalent of smoking two packs of cigarets a day produced complicated, abnormal breathing development during the first 18 days of newborn rats, University of Arizona researchers report. view more (2006-04-06)
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)
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)
How vitamin C stops the big 'C'
Nearly 30 years after Nobel laureate Linus Pauling famously and controversially suggested that vitamin C supplements can prevent cancer, a team of Johns Hopkins scientists have shown that in mice at least, vitamin C - and potentially other antioxidants - can indeed inhibit the growth of some tumors - just not in the manner suggested by years of... view more... (2007-09-11)
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)
Salmon go veggie to save wild fish stocks
Salmon, like humans, require omega-3 fatty acids in their diet to function healthily. But as the fish farming industry expands, feeding salmon and other aquatic species with pellets containing fishmeal and oil derived from processing wild-caught marine fish is unsustainable in the long term. view more (2006-04-04)
Scientists provide new evidence for cellular cause of SIDS
University of Chicago researchers and colleagues have found strong support that a disturbance of a specific neurochemical can lead to sudden infant death syndrome, the primary cause of death before age 1 in the United States. view more (2006-03-08)
Stanford scientists identify protein involved in fast-spreading cancers
Researchers at the Stanford University School of Medicine have found a protein that may explain why tumors in a low-oxygen environment are more deadly. view more (2006-04-27)
Scientists unlock solid tumor treatment genetic secrets
A biochemical mechanism that cells use to cope with hypoxia (lack of oxygen) actually cooperates with a less well-known mechanism that helps increase the expression of those hypoxia-sensitive genes. view more (2005-12-02)
Low oxygen in coastal waters impairs fish reproduction
Low oxygen levels in coastal waters interfere with fish reproduction by disrupting the fishes' hormones, a marine scientist from The University of Texas at Austin Marine Science Institute has found. view more (2007-08-29)
Pomegranate juice for moms may help babies resist brain injury
Expectant mothers at risk of premature birth may want to consider drinking pomegranate juice to help their babies resist brain injuries from low oxygen and reduced blood flow, a new mouse study from Washington University School of Medicine in St. Louis suggests. view more (2005-06-28)
Botox could help target resistant tumors for treatment
The cosmetic treatment Botox may have a new use as an adjuvant to cancer therapy, providing an open door for chemotherapy and radiation treatments. view more (2006-02-15)
New sensor to provide early warning of oxygen loss to unborn children
esearchers at the University of Warwick, and the University Hospitals Coventry and Warwickshire NHS Trust, have devised a new sensor which has the power to dramatically improve the amount of early warning doctors and midwives get of a dangerous situation in the birth process when the unborn child's brain is starved of oxygen-Fetal Hypoxia. view more (2006-02-14)
Pacific coast turning more acidic
An international team of scientists surveying the waters of the continental shelf off the West Coast of North America has discovered for the first time high levels of acidified ocean water within 20 miles of the shoreline, raising concern for marine ecosystems from Canada to Mexico. view more (2008-05-23)
Adaptive functional evolution of leptin in cold-adaptive pika family
Researchers at the Northwest Institute of Plateau Biology, Chinese Academy of Sciences have put forward the viewpoint for the first time that adaptive functional evolution may occur in the leptin protein of the pika (Ochotona) family, a typical cold-adaptive mammal. view more (2008-01-23)
Long airplane flight does not appear to increase risk of blood clots
Researchers simulating conditions of reduced cabin pressure and reduced oxygen levels, such as may be encountered during an 8-hour airplane flight, found no increase in the activation of the blood clotting system among healthy individuals. view more (2006-05-17)
When preventing pre-eclampsia, a little carbon monoxide goes a long way
Researchers have shown that carbon monoxide may prevent the placental cell death caused by oxidative stress injury, possibly averting the risks of pre-eclampsia. view more (2006-09-05)
Green tea compounds beat OSA-related brain deficits
Chemicals found in green tea may be able to stave off the cognitive deficits that occur with obstructive sleep apnea (OSA), according to a new study published in the second issue for May of the American Thoracic Society's American Journal of Respiratory and Critical Care Medicine. view more (2008-05-15)
Smoking during pregnancy a 'double-edged sword' in SIDS
Premature infants whose mothers smoked during pregnancy may be at even higher risk for sudden infant death syndrome (SIDS) than preemies whose mothers did not smoke, according to new research out of the University of Calgary. view more (2008-08-29)
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