Coffee users at lower risk for Parkinson's -study
Source: Reuters
By Maggie Fox, Health and Science Editor
WASHINGTON, April 9 (Reuters Life!) - People from families prone to Parkinson's who drink coffee or smoke are less likely to develop the disease, researchers said on Monday in a finding that reinforces earlier observations and offers potential paths to treatment.
The researchers doubt that smoking and caffeine protect from Parkinson's, but say the information offers clues about how environment works with genes to cause disease.
Dr. William Scott of the University of Miami school of medicine, who led the study, said the findings point clearly to dopamine -- a message-carrying chemical in the brain that falls to low levels in Parkinson's.
"Dopamine is important because both smoking and drinking caffeine affect dopamine in the brain," Scott said in a telephone interview.
Other researchers had noted that both smoking and drinking coffee seemed to reduce the risk of Parkinson's, but no one had tracked it in families prone to Parkinson's.
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