Hi Jonathan
I would be interested in knowing more about the Dupuytren's/iron overload question. I came to a suspicion about that connection independently and have been trying to find more information about it--at least others with the same suspicion. My husband has D, has had some high iron readings (transferrin sat and serum) and I have been trying to get him to donate blood on a regular basis. He is dubious and resistant to the bleeding schedule. Without high ferritin (which he never reached, but won't now because of donating) a regular doctor will never suspect H. I'm considering the take home DNA swab from, I think, Michigan State U.
Cori H