This article is really stretching the truth. I cannot believe the spin the scientists have put on this. What they fail to mention is that DJ-1 is only one of several gene mutations associated with YOPD. How in the world cant they extrapolate that to cover all Young Onset cases? What they really mean to say is that it may halt progression in some forms of genetic PD. To me, all they are doing is confirming they that there are many different causes of PD yet they continue to sell us on the notion that there is one magical treatment for all of us.

They hint at the truth in the last paragraph:

In some cases, Parkinson's can be diagnosed before motor symptoms begin with the help of brain scans, explains Dr. Lev, and patients who have a genetic link to the disease might opt for early testing.

Laura