a friend with type 1 told me about a mesh ball containing pancreatic tissue that has pores big enough for insulin but too small for the immune response to get t

a friend with type 1 told me about a mesh ball containing pancreatic tissue that has pores big enough for insulin but too small for the immune response to get to I am destroy it. sounded fascinating. I've been wondering if a closed loop thyroid pump that dumps t4 and t3 based on tsh and reverse t3 levels could be made, or a mesh ball to keep hashimotos away from some thyroid tissue, then ablate the original.