Brightsurf Science News & Current Events

May 14, 2001
Fourth annual HIV Vaccine Awareness Day honors volunteers for their selfless contributions to HIV research
Friday, May 18, commemorates the Fourth Annual HIV Vaccine Awareness Day, which honors thousands of volunteers worldwide who have literally rolled up their sleeves to receive an experimental vaccine designed to prevent HIV infection in studies.

DDT, PCBs not linked to higher rates of breast cancer, an analysis of five Northeast studies concludes
Scientists who combined data from five large breast cancer studies have found no link to the pesticide DDT or to PCBs, a widespread industrial chemical.

Indian caste groups have differing genetic relationships to Europeans and Asians
A new study of genetic data shows that the ancestors of Indian men came from different parts of the world than those of Indian women and produced modern upper caste Indian populations that are genetically more similar to Europeans and lower caste populations that are more similar to Asians.

Study points to potential role for caffeine in reducing the risk of Parkinson's disease
In a mouse model of Parkinson's disease, scientists at MGH have shown that caffeine is able to prevent the loss of the chemical signal that is depleted in Parkinson's disease.

Preventing flu outbreaks in long-term care facilities
Influenza and pneumococcal pneumonia kill many elderly Canadians. This issue of the Canadian Medical Association Journal presents 3 articles that discuss the successes -- and failures -- of Canadian efforts to limit influenza outbreaks in Canadian long-term care facilities.

Chickenpox: 'We cannot afford to treat this disease with contempt any longer'
In her commentary on chickenpox in children, Dr. Barbara Law warns that Canadians have become complacent about the dangers of the disease and, more importantly, about the ability to eradicate it through vaccination programs.

Progenitor cells can have protective effect against brain trauma
Penn researchers have found that transplanted neural progenitor cells can restore brain function and lessen further brain damage in rats.

LSU researchers find cause of respiratory diseases in cattle
Researchers at Louisiana State University have discovered that a bovine virus not previously believed to cause respiratory-tract infections in cattle is associated with several outbreaks of shipping-fever pneumonia, the most fatal form of bovine respiratory-tract disease.

Key step in gene activation discovered
Scientists at Penn State have cracked the code of an essential signal in the sequence of steps that controls the molecular choreography of gene regulation.

Study ties economic woes to murder rates in some small cities
Homicide cases in small to mid-size cities in the nation's Rust Belt rose in the 1980s and 1990s, according to a new Ohio University study of 85 industrial cities in the Midwest and Northeast.

Lidocaine patch shown in large trial to relieve post-herpetic neuralgia
Endo Pharmaceuticals Inc. announced today that new data shows that two-thirds of patients experience significant relief from the agonizing pain caused by post-herpetic neuralgia (PHN) when they use the company's product, Lidoderm® (lidocaine patch 5%), a topical treatment patch containing 5% lidocaine.

Hospital closure and coronary revascularization
The effect of hospital closures on health care outcomes is controversial.

University of Pittsburgh researchers identify subtype of cell that promotes organ transplant acceptance
In one of the few studies of its kind, researchers from the University of Pittsburgh have found that a subtype of dendritic cell plays a key role in preventing organ rejection and may be associated with transplant tolerance, the long- term survival of transplanted organs without the need for immunosuppressant drugs.

Government has obligation to reduce teen smoking
This year, one million American teen-agers will become smokers. More than one in four of these new smokers will someday die from tobacco-related causes.

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