السبت، 18 أغسطس 2012

ScienceDaily: Health & Medicine News

ScienceDaily: Health & Medicine News

Study reveals new molecular target for melanoma treatment

Posted: 17 Aug 2012 05:39 PM PDT

A laboratory study demonstrates how a new targeted drug, Elesclomol, blocks oxidative phosphorylation, which appears to play essential role in melanoma that has not been well understood. Elesclomol was previously shown to have clinical benefit only in patients with normal serum lactate dehydrogenase, a laboratory test routinely used to assess activity of disease.

'Organic' study of live pancreatic tissue yields new opportunities for diabetes research

Posted: 17 Aug 2012 12:15 PM PDT

An 'all-natural' method for studying pancreatic islets, the small tissues responsible for insulin production and regulation in the body, has recently been developed to try to track metabolic changes in living tissues in 'real time' and without additional chemicals or drugs.

Brain's mysterious switchboard operator revealed

Posted: 17 Aug 2012 12:15 PM PDT

Researchers report that a mysterious region deep in the human brain could be where we sort through the onslaught of stimuli from the outside world and focus on the information most important to our behavior and survival.

Cholesterol test with only a photo of patient's hand

Posted: 17 Aug 2012 10:55 AM PDT

Researchers have developed a total cholesterol test that uses a digital camera to take a snapshot of the back of the patient's hand rather than a blood sample. The image obtained is cropped and compared with images in a database for known cholesterol levels.

War is not necessarily the cause of post-traumatic stress disorder

Posted: 17 Aug 2012 10:55 AM PDT

Surprisingly, the majority of soldiers exhibiting symptoms of post-traumatic stress syndrome were suffering from poor mental health before they were posted to a war zone, new research suggests.

West Nile on the rise again after a quiet decade

Posted: 17 Aug 2012 10:53 AM PDT

A University of Medicine & Dentistry of New Jersey expert describes symptoms and ways to protect yourself from the West Nile virus.

Molecular 'movies' may accelerate anti-cancer drug discovery

Posted: 17 Aug 2012 06:30 AM PDT

Using advanced computer simulations, researchers have produced moving images of a protein complex that is an important target for anti-cancer drugs.

Flu vaccine research: Overcoming 'original sin'

Posted: 17 Aug 2012 06:25 AM PDT

Scientists studying flu vaccines have identified ways to overcome an obstacle called "original antigenic sin," which can impair immune responses to new flu strains.

New player in immune response? The strange case of UCP2

Posted: 17 Aug 2012 05:40 AM PDT

Uncoupling proteins present a paradox.  They are found within mitochondria and serve to prevent the cell's powerhouses from exploiting the charge differential across their membranes to generate ATP, which the body uses as an energy source.  When uncoupling proteins are active, mitochondria produce heat instead of ATP.  This may be useful under certain circumstances, such as when an animal is hibernating, but it seems unlikely that helping bears through the winter is the only function of uncoupling proteins, especially as non-hibernating animals also have them. 

Smoking in pregnancy increases asthma risk in preschool

Posted: 17 Aug 2012 05:39 AM PDT

Maternal smoking during pregnancy is associated with wheeze and asthma in preschool children, even among children who were not exposed to maternal smoking late in pregnancy or after birth, according to a new study.

Less commonly prescribed antibiotic may be better for bloodstream infections

Posted: 16 Aug 2012 05:14 PM PDT

Hundreds of thousands of Americans develop bloodstream infections every year. Vancomycin was the most commonly prescribed antibiotic in dialysis patients for treating certain bloodstream infections, but cefazolin was 38% better than vancomycin at preventing hospitalizations and deaths from these infections. Cefazolin was also 48% better at preventing sepsis.

What’s your lifetime risk of developing kidney failure?

Posted: 16 Aug 2012 05:14 PM PDT

Kidney failure is on the rise and currently afflicts 2 million people worldwide.

Study finds one treatment stands above others for adults with Langerhans cell histiocytosis

Posted: 15 Aug 2012 02:48 PM PDT

A physician-researcher has shed light on the most effective treatment for adults with Langerhans cell histiocytosis in bones.

Potential new drug for ulcerative colitis

Posted: 15 Aug 2012 02:40 PM PDT

An investigational drug currently under FDA review for the treatment of rheumatoid arthritis has now shown positive results in patients with moderate-to-severe ulcerative colitis.

Both early alcohol use and early intoxication can herald trouble for college students

Posted: 15 Aug 2012 01:16 PM PDT

Research shows that the earlier one drinks, the greater the chances of later alcohol-related problems. Researchers examined age at first drink (AFD) as well as drinking to intoxication among college students. Findings showed that both an early AFD and a quick progression to drinking to intoxication can lead to heavy drinking and problems during the years from high school through to college.

Tracking the effects of prenatal alcohol exposure through to nine years of age

Posted: 15 Aug 2012 01:16 PM PDT

Although studies of alcohol's effects on fetal growth have consistently demonstrated deficits that persist through infancy, the data on long-term postnatal growth from human studies have been inconsistent. A new study of the effects of heavy prenatal alcohol exposure on growth and body composition throughout childhood has found growth restrictions that persist through to nine years of age, as well as a delay in weight gain during infancy, both of which were exacerbated by iron deficiency.
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