Oxygen News and Research

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Study looks at cardiac resynchronization therapy

A randomized, controlled, multi-center trial has found that cardiac resynchronization therapy produced no improvement in peak oxygen uptake during exercise testing, the trial's primary endpoint, in patients with Class III heart failure, including mechanical problems that disrupt the heart's normal rhythm and a moderately prolonged QRS complex as demonstrated on EKG.

6 Nov 2007

Overeating alters the core mechanism of the body clock

Our body's 24-hour internal clock, or circadian clock, regulates the time we go to sleep, wake up and become hungry as well as the daily rhythms of many metabolic functions.

6 Nov 2007

New liver model for drug tests

In the early stages of drug development, a drug’s effect is tested in animal experiments.

6 Nov 2007

Discovery of new hemoglobin function

A team of researchers from Wake Forest University, the National Institutes of Health and other institutions has discovered a previously undetected chemical process within the oxygen-carrying molecule hemoglobin that could have far-reaching implications for the treatment of cardiovascular diseases.

6 Nov 2007

Species extinctions could compromise the benefits that nature provides to society

An international team of scientists has published a new analysis showing that as plant species around the world go extinct, natural habitats become less productive and contain fewer total plants –– a situation that could ultimately compromise important benefits that humans get from nature.

6 Nov 2007

Floating effective for stress and pain

Relaxation in large, sound- and light-proof tanks with high-salt waterfloatingis an effective way to alleviate long-term stress-related pain.

6 Nov 2007

Chlorophyll breakdown in ripening apples and pears produces highly active antioxidants

Fall, the season of colors: Leaves turn red, yellow, and brown. The disappearance of the color green and the simultaneous appearance of these other colors are also signs of ripening fruit.

5 Nov 2007

American women at increased risk of silent coronaries

After examining data from government health surveys undertaken in the United States, researchers say more American women are developing a type of artery disease that raises the risk of death from heart disease and stroke.

5 Nov 2007

Treat all patients with rare lung disease to prevent stroke, say doctors

Treatment should be offered to all people with a particular rare lung condition, regardless of whether or not they show symptoms of it, say researchers and doctors behind a new study published today.

5 Nov 2007

New technology to tackle MRSA

The recent surge in Methicillin-resistant Staphylococcus aureus (MRSA) cases have thrust the infection into the spotlight. Most commonly traced to health care environments (HA-MRSA), the new community acquired (CA-MRSA) strains are now being found in schools, universities and athletic settings.

5 Nov 2007

Prevalence of asymptomatic peripheral artery disease steadily increasing among American adults

The prevalence of asymptomatic peripheral artery disease (PAD) is steadily increasing among American adults, researchers reported at the American Heart Association's Scientific Sessions 2007.

5 Nov 2007

Antibody might help starve cancerous tumors

An antibody might offer a safe and effective complement to anti-cancer therapies designed to starve malignant tumors by pruning the blood vessels that feed them, researchers report in the November 2 issue of the journal Cell, a publication of Cell Press.

2 Nov 2007

SENP1 protein may provide a basis for future targeted cancer therapies

Researchers at the University of Texas M. D. Anderson Cancer Center have found a protein that enables cellular survival during periods of low oxygen, or hypoxia, which also is key for development of many kinds of cancer.

2 Nov 2007

Non-invasive radio waves heat up nanotubes to destroy cancer

Cancer cells treated with carbon nanotubes can be destroyed by non-invasive radio waves that heat up the nanotubes while sparing untreated tissue, a research team led by scientists at The University of Texas M. D. Anderson Cancer Center and Rice University has shown in preclinical experiments.

2 Nov 2007

Link between sleep apnea and increased heart rate variability

A sleep-related breathing disorder, common in heart failure, increases one's heart rate variability.

2 Nov 2007

Researchers find stem cells in degenerating spinal discs, potential for repair

Orthopedic researchers at Jefferson Medical College have for the first time found stem cells in the intervertebral discs of the human spine, suggesting that such cells might someday be used to help repair degenerating discs and remedy lower back and neck pain.

2 Nov 2007

Case Western Reserve researchers breed a "Lance Armstrong" mouse

Case Western Reserve University researchers have bred a line of "mighty mice" (PEPCK-Cmus mice) that have the capability of running five to six kilometers at a speed of 20 meters per minute on a treadmill for up to six hours before stopping.

2 Nov 2007

Heart attacks/pneumonia falls short of national goals

Emergency departments across the nation are failing to meet national goals in treating many heart attack and pneumonia patients, according to a study by Johns Hopkins researchers published in the October issue of Academic Emergency Medicine.

1 Nov 2007

Quality of life most important for survival in advanced non-small cell lung patients

Healthcare providers have observed it for years -- patients who appear to have a better quality of life while battling their cancer live longer.

31 Oct 2007

How can some people live at high altitudes and thrive while others struggle?

The answer for Tibetans who live at altitudes around 14,000 feet is increased nitric oxide (NO) levels. High levels of NO circulate in various forms in the blood and produce the physiological mechanisms that cause the increased blood flow that maintains oxygen delivery despite hypoxia - low levels of oxygen in the ambient air and the bloodstream.

31 Oct 2007