السبت، 30 مارس 2013

ScienceDaily: Health & Medicine News

ScienceDaily: Health & Medicine News


Children with sleep apnea have higher risk of behavioral, adaptive and learning problems

Posted: 29 Mar 2013 01:12 PM PDT

A new study found that obstructive sleep apnea, a common form of sleep-disordered breathing, is associated with increased rates of ADHD-like behavioral problems in children as well as other adaptive and learning problems.

Estrogen plus progestin use linked with increased breast cancer incidence and mortality

Posted: 29 Mar 2013 01:12 PM PDT

Estrogen plus progestin use is linked with increased breast cancer incidence. In addition, prognosis is similar for both users and nonusers of combined hormone therapy, suggesting that mortality from breast cancer may be higher for hormone therapy users as well, according to a new study.

Young baseball pitchers shouldn't overdo it

Posted: 29 Mar 2013 01:11 PM PDT

Following a few basic guidelines can help young pitchers avoid overuse injuries, says orthopedic surgeon and former minor league pitcher Michael Freehill.

Tablet computers acceptable for reading EEG results, study says

Posted: 29 Mar 2013 01:11 PM PDT

Physicians have shown that tablet computers can be used to analyze electroencephalogram or EEG results outside of the clinic or hospital.

New study aims to prevent sports-related brain injury in youngsters

Posted: 29 Mar 2013 09:53 AM PDT

Ice hockey accounts for nearly half of all traumatic brain injuries among children and youth participating in organized sports who required a trip to an emergency department in Canada, according to a new study.

DNA: How to unravel the tangle

Posted: 29 Mar 2013 09:44 AM PDT

A chromosome is rarely found in the shape we are used to seeing in biology books, that is to say the typical double rod shape (the X pattern, to put it simply). It is usually "diluted" in the nucleus and creates a bundle that under the microscope appears as a messy tangle. In the last few years such chaos, however, has been "measured" and scientists have unveiled their secret: the genes in the tangle are actually arranged in regions that may perform a functional role.

Stem cell fate depends on 'grip'

Posted: 28 Mar 2013 11:24 AM PDT

Scientists have generated new insight on how a stem cell's environment influences what type of cell a stem cell will become. They have shown that whether human mesenchymal stem cells turn into fat or bone cells depends partially on how well they can "grip" the material they are growing in.

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