Hi, I was researching x-linked ichthyosis in medical journals and noticed recent research looking at the impact of the loss of the gene that produces Steroid Sulftase (the gene that x-linked ichthyosis sufferers are missing). A couple of articles noted that steroid sulftase is involved in brain chemical production and that the loss of it is associated with Attention deficits. Attention deficit is common in our family among those that have x-linked Ichthyosis (or carry the gene--as the females do). Has anyone else discovered such a link in their families between X-Ich and attention deficit?