__, or insulin-dependant diabters, is an autoimmune disorder in which the immune system destroys the beta cells of hte pancreas. __, which usually appears during childhood, destroys the person's ability to produce insulin. Treatment consists of insulin, typically injected sveral times daily. In the past, insulin was extracted from animal pancreases, but now human insulin can be obtained from genetically engineered bacteria, a relatively inexpensive source. Stem cell research may someday provide a cure for __ by generating replacement beta cells that restore insuilin rpoduction by the pancreas.
type 1 diabetes x3