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NEW YORK (AP) - An experimental treatment for Parkinson's disease seemed to improve symptoms — dramatically so, for one 59-year-old man — without causing side effects in an early study of a dozen patients.
The gene therapy treatment involved slipping billions of copies of a gene into the brain to calm overactive brain circuitry.
The small study focused on testing the safety of the procedure rather than its effectiveness, and experts cautioned it's too soon to draw conclusions about how well it works. But they called the results promising and said the approach merits further studies.
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