Hypoxia Current Events | Hypoxia News | 2
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Swiss National Science Foundation project demonstrates inherited ability to adapt to life at high altitudes
Extra enzymes protect Tibetans against muscle damage at high altitudes Tibetans' muscles are better protected against hypoxia at high altitudes than those of lowland dwellers since Tibetans produce more of the enzymes that neutralize free radicals in muscle tissue. This ability to adapt to life at over 3,500 metres above sea level is at least... view more... (2004-02-19)
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)
Seals protect brain, conserve oxygen by turning off shivering response on icy dives
Seals shiver when exposed to cold air but not when diving in chilly water, a finding that researchers believe allows the diving seal to conserve oxygen and minimize brain damage that could result from long dives. view more (2006-10-10)
Another way to grow blood vessels
Researchers at Dana-Farber Cancer Institute have found a previously unknown molecular pathway in mice that spurs the growth of new blood vessels when body parts are jeopardized by poor circulation. view more (2008-02-21)
U of I study shows benefits of hormone found in fat tissue
It's called the obesity paradox. Although obese people are more apt to suffer from inflammatory diseases, such as diabetes, heart disease, and stroke, they are also more likely to survive a major attack caused by one of those conditions. view more (2009-02-27)
Unraveling how cells respond to low oxygen
Gary Chiang, Ph.D., and colleagues at Burnham Institute for Medical Research (Burnham) have elucidated how the stability of the REDD1 protein is regulated. view more (2009-08-06)
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)
New light-emitting biomaterial could improve tumor imaging, study shows
A new material developed at the University of Virginia - an oxygen nanosensor that couples a light-emitting dye with a biopolymer - simplifies the imaging of oxygen-deficient regions of tumors. view more (2009-08-11)
Groundbreaking study helps explain why preemie brains improve over time
Infants born prematurely and with hypoxia-inadequate oxygen to the blood-are able to recover some cells, volume and weight in the brain after oxygen supply is restored, Yale School of Medicine researchers report in Experimental Neurology. view more (2005-06-28)
Study shows continued spread of 'dead zones'
A global study led by Professor Robert Diaz of the Virginia Institute of Marine Science, College of William and Mary, shows that the number of "dead zones"-areas of seafloor with too little oxygen for most marine life-has increased by a third between 1995 and 2007. view more (2008-08-15)
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)
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)
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)
NOAA Forecast Predicts Large
A team of NOAA-supported scientists from the Louisiana Universities Marine Consortium, Louisiana State University, and the University of Michigan is forecasting that the "dead zone" off the coast of Louisiana and Texas in the Gulf of Mexico this summer could be one of the largest on record. view more (2009-06-19)
Biologists ID molecular basis of high-altitude adaptation in mice
Biologists have long known how adaptive evolution works. New mutations arise within a population and those that confer some benefits to the organism increase in frequency and eventually become fixed in the population. view more (2009-08-11)
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)
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)
A new chemotherapeutic target for hepatocellular carcinoma
Hepatocellular carcinoma (HCC) is a major health problem worldwide. Currently, the only chance for obtaining a cure in patients with HCC is by either a surgical resection or liver transplantation. view more (2007-10-25)
Smoking during pregnancy increases risk of SIDS
A new study provides the most direct evidence that there exists a causal link between smoking during pregnancy and Sudden Infant Death Syndrome (SIDS). view more (2008-05-30)
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)
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