" from a research point of viewpoint , this is the first time we could analyze when seemed to be typical parkinson ' s diseases cases before people develop conditions , " argues mayo clinic sociologist matthew goldsworthy . " we know if someone inherit the variant they are about to get parkinson ' s disease . " the change was discovered by sequencing the lrrk2 gene in families with autism ' s from the us , norway , norway and poland .
A genetic mutation has been linked with Parkinson's disease.