Archive: 09/04/2015

How the brain balances risk-taking and learning

If you had 10 chances to roll a die, would you rather be guaranteed to receive $5 for every roll ($50 total) or take the risk of winning $100 if you only roll a six?

Apr 9, 2015

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Study revises theory of how PTEN, a critical tumor suppressor, shuts off growth signals

The gene called PTEN is one of the most important of the body's natural tumor suppressors. When the gene is mutated or missing, as it is often observed to be in a host of cancers, growth signals affecting cells can get stuck ...

Apr 9, 2015

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Gene loss creates eating disorder-related behaviors in mice

Building on their discovery of a gene linked to eating disorders in humans, a team of researchers at the University of Iowa has now shown that loss of the gene in mice leads to several behavioral abnormalities that resemble ...

Apr 9, 2015

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Touch-sensing neurons are multitaskers

Two types of touch information—the feel of an object and the position of an animal's limb—have long been thought to flow into the brain via different channels and be integrated in sophisticated processing regions. Now, ...

Apr 9, 2015

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New Ebola study points to potential drug target

Opening the door to potential treatments for the deadly Ebola virus, scientists have found that a protein made by the virus plays a role similar to that of a coat-check attendant.

Apr 9, 2015

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Team discovers mechanism responsible for tumor invasion in brain cancer

A neuro-oncology research team at Dartmouth's Norris Cotton Cancer Center, led by the Director Mark A. Israel, MD with first author Gilbert J. Rahme, PhD, recently identified the transcription factor Id4 as a suppressor of ...

Apr 9, 2015

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Can facial plastic surgery make you more likeable?

Facial plastic surgery may do more than make you look youthful. It could change—for the better—how people perceive you. The first study of its kind to examine perception after plastic surgery finds that women who have ...

Apr 9, 2015

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Facial plastic surgery improves perception of femininity, personality, attractiveness

Facial rejuvenation surgery may not only make you look younger, it may improve perceptions of you with regard to likeability, social skills, attractiveness and femininity, according to a report published online by JAMA Facial ...

Apr 9, 2015

New evidence supports success of fecal transplants in treatment of Clostridium difficile infection

Research published in the open access journal Microbiome offers new evidence for the success of fecal microbial transplantation (FMT) in treating severe Clostridium difficile infection (CDI), a growing problem worldwide that ...

Apr 9, 2015

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Axillary lymph node evaluation performed frequently in ductal carcinoma in situ

Axillary lymph node evaluation is performed frequently in women with ductal carcinoma in situ breast cancer, despite recommendations generally against such an assessment procedure in women with localized cancer undergoing ...

Apr 9, 2015

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