Oxygen News and Research

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By altering a single gene you could live longer and be thinner

Imagine that by altering the function of a single gene, you could live longer, be thinner and have lower cholesterol and fat levels in your blood.

30 Jun 2004

Why lost weight returns after dieting

After months of torturous dieting, there is nothing more frustrating than to find that the lost weight has returned.

30 Jun 2004

World’s first computer model of a pregnant crash dummy

These days, everyone on board a car is protected by comprehensive safety systems -- everyone except the unborn child. Researchers still know surprisingly little about fetuses in car accidents.

30 Jun 2004

U-M scientists say Wnt protein prevents obesity by inhibiting fat cell development

Genetically engineered mice, created at the University of Michigan Medical School, are living every dieter's dream.

29 Jun 2004

Leeches add interesting new angle for evolutionary biologists to consider when explaining how parental care has evolved

When it comes to parenting, leeches are quite accomplished. Although some leeches abandon their young at birth, a Monash University study of the Australian leech species, Helobdella papillornata, has found that it broods its eggs and young on its body for several weeks and captures food for its offspring.

29 Jun 2004

Molecular biologists find chink in the armor of Candida, the most common human fungal pathogen

Molecular biologists at Rice University have discovered a key defense mechanism that the yeast Candida albicans uses against attack by the human immune system.

26 Jun 2004

Hair cloning could be the cure for baldness

Researcher Kevin McElwee -- one of only a few people in the world who hold a doctoral degree in hair biology -- thinks a cure for baldness that uses the technique of hair cloning could be commercially available within 10 years.

24 Jun 2004

We want to figure out how to grow new kidneys in humans

Growing new organs to take the place of damaged or diseased ones is moving from science fiction to reality, according to researchers at Washington University School of Medicine in St. Louis.

22 Jun 2004

Virtual reality appears to dramatically change how the brain physically registers pain

The work, which used a specialized type of magnetic resonance imaging to track pain-related brain activity, showed drops of as much as 97 percent in such activity in some brain centers. The study marks the first time that scientists have documented a link between virtual reality and pain reduction in terms of an actual physiological response.

21 Jun 2004

Cooling method to treat brain aneurysms

Patients who undergo brain surgery to treat aneurysms are at risk for permanent brain damage, but a protective cooling system is now being tested at Rush University Medical Center to reduce or eliminate this risk.

21 Jun 2004

Potential new strategy for blocking tumor growth

Targeting a master molecule that helps cancer cells survive when blood oxygen levels are low may offer a potentially powerful strategy for blocking tumor growth, say researchers at The University of Texas M. D. Anderson Cancer Center.

16 Jun 2004

Topiramate may protect newborns from brain injury and long-term neurologic problems caused by excitotoxicity

An existing drug already approved by the FDA may protect newborns from brain injury and long-term neurologic problems caused by excitotoxicity, or over-activation of neurons, report two NIH-funded studies from Children's Hospital Boston.

14 Jun 2004

Oxidants are responsible for sex in algae

Colonies of the multicellular green alga Volvox carteri exposed to temperatures of 111 degrees Fahrenheit (42.5 degrees Celsius) had twice the amount of free radicals, oxidants that can damage biological structures, as unheated colonies. High levels of oxidants within their cells activated the algae's sex-inducer gene, the researchers report.

11 Jun 2004

Body fat not always bad

With the threat of an obesity crisis looming, a study led by UCL researchers reveals today that fat tissue isn’t always the enemy. Reporting in the journal Science they show that a molecular signalling pathway in fat tissue is an important mediator in extending lifespan.

11 Jun 2004

65 percent of America’s adults are overweight and 31 percent of adults are obese and at risk for chronic diseases

Government and private sector health experts now estimate that 65 percent of America’s adults are overweight and 31 percent of adults are obese and at risk for chronic diseases such as diabetes and hypertension. The link between obesity and hypertension is well known, but the exact nature of the association between the two disorders remains unclear.

11 Jun 2004

Accurately estimating the life expectancy of persons with advanced dementia

A model has been created that can help determine the risk of death within six months for nursing home patients with advanced dementia, according to a study in the June 9 issue of The Journal of the American Medical Association (JAMA).

10 Jun 2004

Vitamin C can increase the severity of spontaneous knee osteoarthritis

High doses of vitamin C increase the severity of spontaneous knee osteoarthritis in an animal model of the disease, according to a new study by Duke University Medical Center researchers.

5 Jun 2004

Drug helps patients with metastatic colorectal cancer

A drug designed to cut off a tumor’s blood supply, when paired with a chemotherapy combination, resulted in significant improvement in survival in patients with metastatic colorectal cancer, the first time in decades that survival times have been extended in patients with this devastating form of advanced cancer.

3 Jun 2004

Umbilical cord blood and bone marrow transplants slow the progression of many cancers

Umbilical cord blood and bone marrow transplants at Loyola University Health System, Maywood, Ill., are curing or slowing the progression of many cancers originating in the bone marrow (i.e., leukemia, myeloma) or lymphatic system (lymphoma).

3 Jun 2004

Drug to extend lives of colorectal cancer patients

A drug designed to cut off a tumor's blood supply, when paired with a chemotherapy combination, resulted in significant improvement in survival in patients with metastatic colorectal cancer, the first time in decades that survival times have been extended in patients with this devastating form of advanced cancer.

2 Jun 2004