Not sure of the science behind this but it's another route being looked at in the cure of diabetes. I know @Alib is interested in how bacteria can affect the body so who knows eh !
http://www.euronews.com/2015/01/06/diabetes-could-bacteria-provide-a-cure/
http://www.euronews.com/2015/01/06/diabetes-could-bacteria-provide-a-cure/