by means of a chamber composed of a semipermeable membrane shaped into hollow fibers or a box surrounding endocrine tissue , pilot studies have shown that isolated islets of langerhans , fragments of insulinoma , or a fetal pancreas retains function for days to weeks , as judged by the ability to sustain euglycemic conditions in chemically induced diabetic rats .
C0022131
islets of langerhans
C0021670
fragments