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Science News for October 9, 2002


Researchers elucidate machinery of major anti-cancer target

A team of researchers from Duke University has made significant breakthroughs in understanding the mechanism of FTase, a key player in cancer development. The study revealed that FTase doesn't release its product until another substrate molecule arrives, suggesting a new role for the enzyme beyond molecular seamstressing.

SourceDuke University·JournalNature·DateOct 9, 2002

New avenue of HIV damage found

Researchers have found a new avenue of HIV damage that affects the structure of CD4 T cells, making it impossible for them to function normally. This discovery may lead to improved disease staging and therapy, as therapies targeting inflammation and scar tissue accumulation could enhance current antiviral treatment.

SourceUniversity of Minnesota·JournalJournal of Clinical Investigation·DateOct 9, 2002

Brain anticipates events to learn routines

Researchers at Baylor College of Medicine trained macaque monkeys to recognize changes in a display screen, rewarding them with juice for correct responses. The study found that neurons in the visual cortex increased activity when an event was likely to occur, allowing primates to develop expectations and prepare accordingly.

SourceBaylor College of Medicine·JournalNature·DateOct 9, 2002