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A number of proteins have already been used for gene therapy for Parkinson's disease. The choice depends on the treatment strategy. For example one strategy is to improve the delivery of dopamine to the relevant brain regions in Parkinson's disease.
In the future, this technique may allow doctors to treat a disorder by inserting a gene into a patientâs cells instead of using drugs or surgery. Researchers are testing several approaches to gene therapy, including: Replacing a mutated gene that causes disease with a healthy copy of the gene.