http://www.ncbi.nlm.nih.gov/pubmed/17951282
since there appears to be a Calcium issue here, i would have to wonder about Vit D and magnesium as well. As the celiac folk can tell you, having the genetic predisposition doesnt equal having the active disease....perhaps the genes are causing a problem with absorption/use of certain nutritional elements. I also wonder if you might have inherited the sca2 from one parent and celiac gene from the other.....good luck