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Safe for passengers with lung disease to travel by air

Oxygen levels while flying are substantially less than at ground level. Current guidelines for in-flight oxygen levels are sufficient to support the needs of passengers with non-obstructed lung disease.

19 May 2009

Obesity appears to play a protective role in heart disease

Being overweight or obese is a leading contributor to cardiovascular disease (CVD) and associated risk factors; however, in patients with established CVD, obesity appears to play a protective role.

18 May 2009

Relationship discovered between tumors and depression

In a study that could help explain the connections between depression and cancer, researchers at the University of Chicago have used an animal model to find, for the first time, a biological link between tumors and negative mood changes.

18 May 2009

Discovery in colon cancer prevention

A new study finds that individuals who have low expression of the "Celebrex gene," 15-PGDH, are actually resistant to Celebrex treatment when used to prevent colon cancer.

18 May 2009

Disruption of immune-system pathway key step in cancer progression

Human immune cells communicate constantly with one another as they coordinate to fight off infection and other threats.

18 May 2009

Asian-Americans in California adopting unhealthy sun-exposure behaviors

A new survey from the Stanford University School of Medicine suggests that a significant number of Asian Americans living in California adopt unhealthy sun-exposure behaviors as they become more westernized.

18 May 2009

Trends in gallbladder cancer over forty years

Overall prognosis for gallbladder cancer appears to be improving, although many patients still have incurable disease and poor survival rates, according to a report in the May issue of Archives of Surgery.

18 May 2009

Weight loss in seniors may increase risk of dementia

A new study shows that older people who are thinner or are losing weight quickly are at a higher risk of developing dementia, especially if they started out overweight or obese. The research is published in the May 19, 2009, print issue of Neurology, the medical journal of the American Academy of Neurology.

18 May 2009

Protein synaptotagmin-IV helps maintain an efficient brain

The instruction manual for maintaining an efficient brain may soon include a section on synaptotagmin-IV (Syt-IV), a protein known to influence learning and memory, thanks to a study by University of Wisconsin-Madison researchers.

18 May 2009

Study comparing partial and complete smoking bans finds no significant difference in impact on employment

Some cities and states around the country have completely banned smoking in public places. Others have instituted partial bans to avoid negative economic consequences, such as loss of employment in restaurants and bars due to reduced patronage by smokers.

18 May 2009

Computer model predicts how brain tumors grow and evolve

Researchers from Brown University and other institutions have developed a computational computer model of how brain tumors grow and evolve.

18 May 2009

Curcumin suppresses fat tissue growth in rodent models

Curcumin, the major polyphenol found in turmeric, appears to reduce weight gain in mice and suppress the growth of fat tissue in mice and cell models.

18 May 2009

Research points to a new way to protect kidneys threatened by insufficient blood or toxins

Better treatments for acute renal failure may be possible by blocking the mitochondrial fragmentation that occurs when kidneys don't get enough blood or are exposed to toxins, researchers at the Medical College of Georgia report in the may issue of the Journal of Clinical Investigation.

18 May 2009

New hope for warding off diabetes nerve loss

A common blood test for triglycerides - a well-known cardiovascular disease risk factor - may also for the first time allow doctors to predict which patients with diabetes are more likely to develop the serious, common complication of neuropathy.

18 May 2009

The impact of third hand smoke on risk for genetic mutations wins Addiction Science Award

A resourceful study into the effect of third hand smoke upon the risk for genetic mutations in fruit flies won the top Addiction Science Award at this year's Intel International Science and Engineering Fair (ISEF), the world's largest science competition for high school students.

18 May 2009

Saffron could stop blindness and cure eye disease

Italian scientists say they have found that saffron may hold the key to stopping vision loss as people age and in treating some eye diseases.

17 May 2009

Snoring and sleep apnoea damage the brain

Australian researchers have found that the effects of sleep apnoea on the brain of a sleeping patient are far worse than previously thought.

17 May 2009

Gene transfer technology may lead to an HIV vaccine

A research team may have broken the stubborn impasse that has frustrated the invention of an effective HIV vaccine, by using an approach that bypasses the usual path followed by vaccine developers.

17 May 2009

Genetic basis for environmental and occupational respiratory diseases

Exposure to particulate matter has been recognized as a contributing factor to lung cancer development for some time, but a new study indicates inhalation of certain particulates can actually cause some genes to become reprogrammed, affecting both the development and the outcome of cancers and other diseases.

17 May 2009

Could sleep be a critical component to maintaining a healthy body weight?

Could sleep be a critical component to maintaining a healthy body weight? According to new research to be presented on Sunday, May 17, at the American Thoracic Society's 105th International Conference in San Diego, body mass index (BMI) is linked to length and quality of sleep in a surprisingly consistent fashion.

17 May 2009