Scientists expect to discover other genes linked in a similar way to the disorder. This information may begin to identify people at risk. Neural Cells Transplants Researchers have implanted neural tissue into the degenerated area of the brain and proven that the new cells can thrive and renew production of dopamine. Dramatic results have been achieved in clinical studies, and the requirements for a consistently effective therapy are being developed through continuing animal and human clinical tests. Meanwhile, development of unlimited cell sources are well underway.
Research is also ongoing with xenotrophic, or non-human, sources for replacement cell lines.
Research continues into the effectiveness of such growth factors, as well as methods of delivering them to the brain. Researchers are closing in on naturally occurring enzymes that appear to deactivate free radicals in a healthy brain, and are testing antioxidant drugs that could mop up molecules before they do damage. The viruses may then be able to infuse ailing dopamine cells with new genes to restore their health. Researchers have succeeded in eliminating most of the common toxic and inflammatory side effects of the viruses, and in recent animal trials prevented the viruses from provoking an immune response . While a Cure Arrives Researchers are reporting promising results among patients using a new device designed to deliver an electrical signal deep inside the brain, much as a pacemaker does to the heart muscle.