Hi David
I went to the AS annual seminar at the Austin Hospital last week. They mentioned that Dr Matt Brown's research was currently exploring
IL-1A (to the power of 3)
CYP2D6 and
HLA-B60 (to the power of 2)
You and Drizz seem to understand the genetic side of things better than anyone else here. So just though I'd mention it to you as another link to look out for...
Regards
Felicity