My questions regarding this article are the following:

  1. Have other causes besides the genetic factor actually been proved to cause or contribte to Parkinson’s Disease?
  2. Now with a total of eleven mutated genes linked to the disease, a person with a close relative with this illness is said to be at 6% more risk than the average person. However, does this same percentage hold true if it’s a parent as opposed to an Uncle? Also, if both Parents are diagnosed with the disease, would the children be at more than a 12% risk? Or, Perhaps does it depend on the cause?
  3. Similar to the first question; Is the finding of more linkable genes compelling more research to rule out other causes or factors that can worsen or complicate Parkinson’s?