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A map of recent positive selection in the human genome

By scanning the entire human genome in search of genetic variations that may signal recent evolution, University of Chicago researchers found more than 700 genetic variants that may be targets of recent natural positive selection during the past 10,000 years of human evolution.

13 Mar 2006

D-cycloserine helps patients learn how to conquer their fears

The fear of public speaking is the most common among individuals with SAD, as well as in the general population. The results of the study are published in the March issue of the Archives of General Psychiatry.

13 Mar 2006

Completely novel approach to fighting HIV infections

For more than a year, researchers watched patiently as a few computer-simulated HIV protease molecules squirmed into more than 15,000 slightly different shapes. In real time, this contortion takes only a fraction of a second.

13 Mar 2006

New test for detecting small amounts of proteins in the blood

Researchers at the University of Pennsylvania School of Medicine have developed a paradigm-shifting method for detecting small amounts of proteins in the blood.

13 Mar 2006

Stents that release the drug paclitaxel to treat stenosis more effective than radiation therapy

Insertion of stents that release the drug paclitaxel to treat stenosis within an implanted bare-metal stent in a coronary artery reduces the risk of subsequent re-narrowing within the stent, when compared with treatment using intra-coronary radiation

13 Mar 2006

Transplanting a pair of kidneys with limited function into one patient may offer one solution to short supply of donated kidneys

Transplanting a pair of kidneys with limited function into one patient can be just as successful as the standard procedure in which a patient receives a single kidney, according to new research at Wake Forest University Baptist Medical Center.

13 Mar 2006

Insulin levels in African American children worsen as they progress through puberty

...while those same levels don't change in their Caucasian counterparts, says new University of Alberta research that shows puberty is a key developmental period affecting diabetes risk.

13 Mar 2006

Tinnitus and its effect on working memory and attention

Individuals with chronic, moderate tinnitus do more poorly on demanding working memory and attention tests than those without tinnitus, according to research conducted at the University of Western Sydney.

13 Mar 2006

Health disparities in heart attack hospital transfer patterns

Older, female and minority patients rushed to community hospitals with acute heart attacks are less likely to be transferred to a larger hospital that offers procedures to immediately open clogged arteries, Duke University Medical Center cardiologists have found.

13 Mar 2006

Trial explores safety and efficacy of injecting human stem cells directly into the brain to treat fatal pediatric neurodegenerative disorder

Researchers in Doernbecher Children's Hospital at Oregon Health & Science University will begin a Phase I clinical trial using stem cells in infants and children with a rare neurodegenerative disorder that affects infants and children.

13 Mar 2006

Influenza-associated hospitalization in a subtropical city

A new study shows that tropical and subtropical countries suffer far more illness and death during flu outbreaks than previously imagined, with both hospital admissions and deaths rising considerably during a flu outbreak.

13 Mar 2006

New non-surgical procedure can cure irregular heart rhythm

A new procedure can now treat esophageal perforations (holes in the esophagus) when caught early, therefore greatly reducing mortality rates.

13 Mar 2006

Disturbance of serotonin can lead to sudden infant death syndrome

University of Chicago researchers and colleagues have found strong support that a disturbance of a specific neurochemical can lead to sudden infant death syndrome, the primary cause of death before age 1 in the United States.

13 Mar 2006

Dental professionals can play a pivotal role in detecting and reporting violence against women

The impact of domestic violence has been recognized as a health care crisis by organizations all over the world. Twenty-five percent of American women have reported abuse at the hands of their spouses or domestic partners.

13 Mar 2006

Wobble pairs make RNA more reactive

The wealth of information contained in a strand of genetic material boils down to sequences of matched pairs of nucleotides that cellular machinery decodes to construct proteins.

13 Mar 2006

Anxiety restricts blood flow in some patients

The fear of public speaking might cause some people to do more than just break out in a cold sweat and battle stomach-churning butterflies - it could prove to have consequences for their heart health.

13 Mar 2006

Drug-eluting stents best treatment for managing coronary restenosis

In the first published trial of its kind, a multi-center clinical study has shown that drug-eluting stents outperform the current "gold standard" radiation treatment in managing coronary restenosis and in preventing further clogging of coronary arteries.

13 Mar 2006