http://www.medicalnewstoday.com/releases/235057.php
For those of you that are far more educated and knowledgeable than I am, perhaps you can read through these intensive findings and paraphrase or post thoughts.
The gist of it seems to be that the course of and treatment of the disease may be able to be predicted based on ones gene profile.
It's an interesting read, but a little, (WAY), beyond me.