I told Pistol Pete that ...I do not think he believed me. There is a reason that PMCB is trading like it is. Thanks for all the examples you cite.
The only thing new to me is transforming[genetically engineering] liver cells to produce insulin. I do not know whether antigens present on liver cell surface would somehow allow those liver cells to escape the autoimmune reaction that present theory says knocks off islet cells in the pancreas.
"The idea of transplanting insulin-producing cells and chemically or mechanically preventing rejection by the host immune system has been floating around for a long time."