If you would like to help find a cure, there are a number of Psoriasis studies currently happening. The one I would recommend is below. They will take a blood sample from you and add your blood sample to their collection for testing. In testing they will try to isolate which genes cause Psoriasis. The more blood samples they get the better, as that will give more data.

This study is in San Francisco but you can find more studies on psoriasis.org.

Psoriasis study:
415-672-9010
liaowi@derm.ucsf.edu