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Latest Hypoxia Stories

2010-09-21 20:46:58

"The upcoming ESC Clinical Practice Guidelines  for the management of STEMI, to be published in 2012 will address this issue on the basis of the Cochrane review and the entire literature," said Gabriel Steg from Hôpital Bichat (Paris, France), co-chairman of the ESC Task Force on the management of AMI-STEMI. Supplemental oxygen therapy, said Stefan James, also co-chairman of the ESC AMI-STEMI Task Force, is currently recommended in European guidelines for patients with...

2010-08-11 15:08:10

The environmental impact of millions of gallons of oil still in the Gulf of Mexico from the Deepwater Horizon incident may depend on microscopic helpers: Bacteria that consume oil and other hydrocarbons and could break down the spilled crude, making it disappear. That's the topic of an article in the current issue of Chemical & Engineering News (C&EN), ACS' weekly newsmagazine. It points out that the oil-eating bacteria are beneficial in helping to clear away the oil. Their...

2010-07-20 14:32:12

Air travel poses no "significant threat" to cardiovascular health, with few conditions likely to warrant restrictions, concludes new guidance published in the journal Heart. The guidance, which has been drawn up by the British Cardiovascular Society, was prompted by widespread public concern about the impact of air travel on health and a House of Lords Science and Technology Committee report on this same issue, published in 2007. The House of Lords report called for definitive specialist...

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2010-07-02 09:30:45

Mice at altitude save oxygen during exercise by using more carbohydrates rather than fat, Canadian and Peruvian scientists reveal This fuel-preference represents an adaptation in high altitude mice to use oxygen more efficiently than their low-altitude counterparts. "Andean mouse species have independently evolved a strategy to maximize energy yield when little oxygen is available" explain lead researchers Marie-Pierre Schippers and Grant McClelland from McMaster University. It is very...

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2010-06-30 06:40:42

The northern Gulf of Mexico hypoxic zone, an underwater area with little or no oxygen known commonly as the "dead zone," could be larger than the recent average, according to a forecast by a team of NOAA-supported scientists from the Louisiana Universities Marine Consortium, Louisiana State University, and the University of Michigan. Scientists are predicting the area could measure between 6,500 and 7,800 square miles, or an area roughly the size of the state of New Jersey. The average of the...

2010-06-28 11:11:16

University of Michigan aquatic ecologist Donald Scavia and his colleagues say this year's Gulf of Mexico "dead zone" is expected to be larger than average, continuing a decades-long trend that threatens the health of a $659 million fishery. The 2010 forecast, released today by the U.S. National Oceanic and Atmospheric Administration (NOAA), calls for a Gulf dead zone of between 6,500 and 7,800 square miles, an area roughly the size of Lake Ontario. The most likely scenario, according to...

2010-06-15 01:04:40

Researchers from Brigham and Women's Hospital and the Harvard School of Public Health have established the first link between air pollution and sleep-disordered breathing (SDB), a known cause of cardiovascular diseases. Antonella Zanobetti, Ph.D., Susan Redline, MD, MPH, Diane Gold, M.D., M.P.H. and colleagues explored the link between air pollution levels, temperature increases and sleep-disordered breathing using data from the Sleep Heart Health Study, which included more than 6,000...

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2010-06-07 09:05:00

While an out-of-control gusher deep in the Gulf of Mexico fouls beaches and chokes marshland habitat, another threat could be growing below the oil-slicked surface. The nation's worst oil spill could worsen and expand the oxygen-starved region of the Gulf labeled "the dead zone" for its inhospitability to marine life, suggests Michigan State University professor Nathaniel Ostrom. It could already be feeding microbes that thrive around natural undersea oil seeps, he says, tiny critters that...

2010-06-02 12:59:23

Patients who have excessive oxygen levels in arterial blood (hyperoxia) following resuscitation from cardiac arrest have a higher rate of death in the hospital than similar patients without arterial hyperoxia, according to a study in the June 2 issue of JAMA. The most common lethal conse­quence of cardiovascular dis­ease is sudden cardiac arrest. Even if return of spontaneous circulation (ROSC) from cardiac arrest is achieved, approximately 60 percent of...

2010-05-17 08:31:49

Sleep apnea may cause metabolic changes that increase insulin resistance, according to researchers from the University of Pittsburgh Medical Center. The intermittent hypoxia associated with sleep apnea causes a distinct drop in insulin sensitivity in mice, even though chronic hypoxia, such as that associated with high altitude, did not. The research was reported at the ATS 2010 International Conference in New Orleans. To determine whether intermittent hypoxia (IH) and chronic hypoxia (CH)...


Word of the Day
endocarp
  • The hard inner (usually woody) layer of the pericarp of some fruits (as peaches or plums or cherries or olives) that contains the seed.
This word comes from the Greek 'endon,' in, within, plus the Greek 'kardia,' heart.
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