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Science News for April 27, 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