الخميس، 8 مارس 2012

ScienceDaily: Health & Medicine News

ScienceDaily: Health & Medicine News

Teaching fat cells to burn calories: New target against obesity involves brown fat

Posted: 07 Mar 2012 03:46 PM PST

In the war against obesity, one's own fat cells may seem an unlikely ally, but new research suggests ordinary fat cells can be reengineered to burn calories.

Heart attacks rise following daylight saving time

Posted: 07 Mar 2012 01:25 PM PST

The Monday and Tuesday after moving the clocks ahead one hour in March is associated with a 10 percent increase in the risk of having a heart attack. Learn what you can do to mitigate your risk.

Eating berries benefits the brain

Posted: 07 Mar 2012 11:58 AM PST

Strong scientific evidence exists that eating blueberries, blackberries, strawberries and other berry fruits has beneficial effects on the brain and may help prevent age-related memory loss and other changes, scientists report.

That caffeine in your drink -- is it really 'natural?'

Posted: 07 Mar 2012 11:58 AM PST

That caffeine in your tea, energy drink or other beverage -- is it really natural? Scientists are reporting successful use for the first time of a simpler and faster method for answering that question.

Self-centered kids? Blame their immature brains

Posted: 07 Mar 2012 10:22 AM PST

A new study suggests that age-associated improvements in the ability to consider the preferences of others are linked with maturation of a brain region involved in self control. The findings may help to explain why young children often struggle to control selfish impulses, even when they know better, and could impact educational strategies designed to promote successful social behavior.

How repeated stress impairs memory

Posted: 07 Mar 2012 10:22 AM PST

Anyone who has ever been subject to chronic stress knows that it can take a toll on emotions and the ability to think clearly. Now, new research uncovers a neural mechanism that directly links repeated stress with impaired memory. The study also provides critical insight into why stress responses can act as a trigger for many mental illnesses.

New immune-system sensor may speed up, slash cost of detecting disease

Posted: 07 Mar 2012 08:26 AM PST

An inexpensive new medical sensor has the potential to simplify the diagnosis of diseases ranging from life-threatening immune deficiencies to the common cold, according to its inventors.

New depression treatment 'safe and effective', experts say

Posted: 07 Mar 2012 06:46 AM PST

Stimulating the brain with a weak electrical current is a safe and effective treatment for depression and could have other surprise benefits for the body and mind, a major Australian study of transcranial Direct Current Stimulation has found.

Surgical treatment for epilepsy should not be viewed as a last resort, study shows

Posted: 07 Mar 2012 06:46 AM PST

The majority of people suffering with drug-resistant epilepsy see surgery as a last resort. But researchers now show that early surgical intervention followed by antiepileptic drugs stop seizures, improve quality of life, and help avoid decades of disability.

Sperm can do 'calculus' to calculate calcium dynamics and react accordingly

Posted: 07 Mar 2012 06:44 AM PST

Sperm have only one aim: to find the egg. The egg supports the sperm in their quest by emitting attractants. Calcium ions determine the beating pattern of the sperm tail which enables the sperm to move. Scientists have discovered that sperm only react to changes in calcium concentration but not to the calcium concentration itself. Probably sperm make this calculation so that they remain capable of maneuvering even in the presence of high calcium concentrations.

Internet-based therapy relieves persistent tinnitus, study suggests

Posted: 07 Mar 2012 06:43 AM PST

Those suffering from nagging tinnitus can benefit from internet-based therapy just as much as patients who take part in group therapy sessions. These are the findings of a German-Swedish study in which patients with moderate to severe tinnitus tried out various forms of therapy over a ten-week period. The outcome of both the internet-based therapy and group therapy sessions was significantly better than that of a control group that only participated in an online discussion forum and thus demonstrated both the former to be effective methods of managing the symptoms of irritating ringing in the ears.

Autism: Don't look now -- I'm trying to think

Posted: 07 Mar 2012 06:41 AM PST

Children with autism look away from faces when thinking, especially about challenging material, according to new research.

Archaea: Crystal structure of archael chromatin clarified

Posted: 07 Mar 2012 06:41 AM PST

Researchers have clarified for the first time how chromatin in archaea, one of the three evolutionary branches of organisms in nature, binds to DNA. The results offer valuable clues into the evolution of chromatin structure in multi-cellular organisms and promise insights into how abnormalities in such structure can contribute to cancers and gene disorders.

Newly approved drug for infant respiratory distress syndrome

Posted: 07 Mar 2012 06:41 AM PST

Scientific advances have led to a new drug Surfaxin® (lucinactant), just approved by the U.S. Food and Drug Administration (FDA) to treat infant respiratory distress syndrome.
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