NOKOMIS, Fla.--(BUSINESS WIRE)--As Rainbow Coral Corp. (OTCBB: RBCC) nears the completion of a ground-breaking joint venture agreement with Amarantus BioSciences (OTCBB: AMBS), the market demand for a cure to Parkinson’s disease grows stronger by the day. Researchers believe that Parkinson’s is caused by the destruction of cells in various parts of the brain, including the substantia nigra, where dopamine is produced. Without dopamine, the brain can’t properly transmit signals that allow for coordinated movement. The Parkinson’s Disease Foundation estimates that as many as one million Americans suffer from Parkinson’s disease, and 60,000 new patients are diagnosed each year.