Friday, January 06, 2006

Brain Protein May Be Linked to Depression

Scientists have discovered a protein that seems to play a crucial role in developing depression, a finding that may lead to new treatments for the often debilitating illness — and fundamental understanding of why it strikes. Although problems with the mood-regulating brain chemical serotonin have long been linked to depression, scientists don't know what causes the disease that afflicts some 18 million Americans — or exactly what serotonin's role is. The newly found protein, named p11, appears to regulate how brain cells respond to serotonin, researchers from Rockefeller University and Sweden's Karolinska Institute report Friday in the journal Science. For more information.

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