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Science News Archive April 2006


Page 1 of 15

Internet use involves both pros and cons for children and adolescents

Research suggests that the Internet can provide essential social support for isolated adolescents and improve academic achievement in low-income youth. However, online interactions may also normalize self-destructive behaviors and expose vulnerable individuals to potentially damaging communities. Additionally, the Internet has been fou...

SourceAmerican Psychological Association·JournalDevelopmental Psychology·DateApr 30, 2006

A biosensor layered like lasagna

A new biosensor technology has been developed that uses static electricity to layer proteins on carbon nanotubes, allowing for precise detection of biological chemicals and environmental agents. The technique enables enzymes to self-assemble in a layer-by-layer manner on the nanotube, resulting in improved sensitivity and specificity.

SourceDOE/Pacific Northwest National Laboratory·JournalJournal of Nanoscience and Nanotechnology·DateApr 28, 2006

Researchers learn more about ways to regenerate the ear's hearing cells

Scientists have made significant progress in understanding how to regenerate hair cells in the inner ear, a major breakthrough in the quest for new treatments for acquired hearing loss. The study found that blocking the Rb protein can promote hair cell regeneration, with specific areas of the inner ear exhibiting different responses.

SourceMassachusetts General Hospital·JournalProceedings of the National Academy of Sciences·DateApr 28, 2006

Feinstein researchers identify intelligence gene

Researchers found a specific pattern of DNA sequence variations in the dysbindin gene associated with impaired cognition and intelligence. The study suggests dysbindin influences variation in human cognitive ability, but only explains a small proportion, about 3 percent.

SourceNorthwell Health·JournalHuman Molecular Genetics·DateApr 27, 2006

African American men paradoxically have fewer, less severe coronary obstructions than white males

The study found that African American men had fewer and less severe coronary obstructions than their white counterparts, despite similar estimated probabilities of obstruction. This paradox raises questions about the factors contributing to racial disparities in cardiovascular disease outcomes.

SourceMedical College of Wisconsin·JournalJournal of the American College of Cardiology·DateApr 27, 2006

Immune response to HIV in the brain

Researchers found increased expression of immune response genes, including CCL5, in the brain, which may contribute to neurodegenerative symptoms and cognitive dysfunction in HIV-infected individuals. The study provides insights into the chronic phase of NeuroAIDS, a significant health problem affecting quality of life.

Scientists discover possible link between oxidative stress and non-hereditary degenerative disease

Researchers found a connection between DJ-1 protein and neurodegeneration in Parkinson's disease, suggesting that environmental toxins may trigger oxidative stress. The study suggests that understanding the role of DJ-1 may lead to the development of new treatments for Parkinson's disease and potentially other neurological disorders.

SourceEmory University Health Sciences Center·JournalJournal of Biological Chemistry·DateApr 27, 2006