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TORONTO (CP) - A newly identified brain chemical appears to be linked to Parkinson's disease, researchers said Thursday.
Decreased amounts of the chemical - a protein known as Sonic Hedgehog, named for a video game - contribute to symptoms of the disease, according to scientists at Toronto's Western Hospital. And their study suggests that increasing the amount of Sonic Hedgehog in the brain could be a potential treatment for Parkinson's, a disease of the central nervous system that afflicts about one per cent of Canadians over the age of 55.