Volume 9 Issue 29
Published - 14:00 UTC 08:00 EST 29-Jan-2007 
Next Update - 14:00 UTC 08:00 EST 30-Jan-2007

Editor: Susan K. Boyer, RN
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Single protein in brain cells plays a key role in controlling body weight, response to insulin and leptin, and energy balance

A single protein in brain cells may act as a linchpin in the body’s weight-regulating system, playing a key role in the flurry of signals that govern fat storage, sugar use, energy balance and weight, University of Michigan Medical School researchers report. more  

Annual study finds top hospitals have 28 percent lower mortality rate

Patients treated at top-rated hospitals nationwide have nearly a one-third better chance of surviving, on average, than those admitted to all other hospitals, according to a study released today by HealthGrades, the leading independent healthcare ratings company. Patients who undergo surgery at these high-performing hospitals also have an average five percent lower risk of complications during their stay, researchers found. more

Cholera pathogen reveals how bacteria generate energy to live

Researchers at Rensselaer Polytechnic Institute have discovered new details about how bacteria generate energy to live. In two recently published papers, the scientists add key specifics to the molecular mechanism behind the pathogen that causes cholera. The work could provide a better understanding of this pathogen, while also offering insight into how cells transform energy from the environment into the forms required to sustain life. more  

New approach could lower antibiotic requirements by 50 times

Steven Hagens, previously at the University of Vienna, told Chemistry & Industry, the magazine of the Society of Chemical Industry, that certain bacteriophages, a type of virus that infects bacteria, can boost the effectiveness of antibiotics gentamicin, gramacidin or tetracycline. more

Important mechanism identified in the formation of blood vessels  

All tissues, sick and healthy alike, need a blood supply to survive and grow. The key to many medical problems, like preventing tumour development, is therefore to obstruct the spread of the blood vessels. Research scientists at Karolinska Institutet have now discovered a heretofore unknown mechanism for how the body links together its blood vessels. more

Carnegie Mellon scientists develop unique 'DNA nanotags'  

Carnegie Mellon University scientists have married bright fluorescent dye molecules with DNA nanostructure templates to make nanosized fluorescent labels that hold considerable promise for studying fundamental chemical and biochemical reactions in single molecules or cells. The work, published online Jan. 26 in "The Journal of the American Chemical Society,” improves the sensitivity for fluorescence-based imaging and medical diagnostics. more

Sensitivity to rejection based on appearance bad for mental, physical health

Three new studies by a University at Buffalo psychologist offer the first known evidence that some people anxiously expect that they will be rejected by others because of their physical appearance, and that this sensitivity, if not mitigated, has serious implications for their mental and physical health. more

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People expecting that they will be rejected by others because of their physical appearance suffer serious implications for their mental and physical health.