Brightsurf Science News & Current Events

October 15, 2006
Adolescent but not adult hamsters are more aggressive on low dose of fluoxetine
New research offers tantalizing clues as to why some teenagers taking common anti-depressants may become more aggressive or kill themselves.

New mechanism underlying pain found
Researchers at Johnson & Johnson Pharmaceutical Research & Development (J&JPRD) today announced that they have discovered a new molecular mechanism that may underlie neuropathic pain.

Altered perception of reward in human cocaine addiction
People addicted to cocaine have an impaired ability to perceive rewards and exercise control due to disruptions in the brain's reward and control circuits, according to a series of brain-mapping studies and neuropsychological tests conducted at the US Department of Energy's Brookhaven National Laboratory.

Commonplace sugar compound silences seizures
Though in clinical use for decades, a small, sweet-tasting compound is revealing a startling new face as a potential cure for epilepsy

Early life key to handling dilemmas for UK's community regeneration workers
Early life experiences help community regeneration professionals develop the commitment and resilience to balance complex ethical and emotional work challenges, according to a recent study published today by the Economic and Social Research Council (ESRC).

Social support improves mental health after a traumatic health care intervention
Support from hospital staff and family is an important factor in preventing post-traumatic stress disorder after a major intensive-care intervention.

New study evaluates methods to prevent importation of illicit nuclear materials
New study evaluates the need for security measures to prevent importation of a smuggled nuclear device.

Kidney damage after heart surgery on the rise
The incidence of kidney damage associated with coronary artery bypass surgery has increased significantly over the past 16 years in the United States, but the rate of death from such damage has decreased significantly during the period, according to a new analysis.

Discovery of post-stimulus activated release implies new mechanisms for dopamine release
The neurotransmitter dopamine continues to be released for nearly an hour after neurons are stimulated, suggesting the existence of secondary mechanisms that allow for sustained availability of dopamine in different regions of the brain including areas critical for memory consolidation, drug induced plasticity and maintaining active networks during working memory, according to a University of Pittsburgh study.

Human stem cells delay start of Lou Gehrig's disease in rats
Researchers at Johns Hopkins have shown that transplanting human stem cells into spinal cords of rats bred to duplicate Lou Gehrig's disease delays the start of nerve cell damage typical of the disease and slightly prolongs life.

Jefferson scientists find high glucose before surgery raises risk of dangerous complications
When researchers examined records of nearly 6,500 hip or knee replacement surgery patients who were treated at Thomas Jefferson University Hospital between 2003 and 2005, they found that those who had high blood sugar before undergoing surgery ran an increased risk of developing blood clots, deep vein thrombosis and even pulmonary embolism after surgery.

Research could lead to new treatments for birth defects
Pioneering new research into cleft lip and palate could open the door to babies with certain craniofacial disorders being successfully treated in the womb.

Gene involved in common birth defect also regulates skin biology
Following up on an earlier discovery that a gene called IRF6 is involved in the common birth defect cleft lip and palate, University of Iowa researchers and their colleagues have identified the function of the gene.
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