Figure 4.

Insulin secretion (pmol/islet.time) from the PEGylated and encapsulated groups compared to the naked islets group in the presence of 5.6 and 16.7 mM glucose concentrations: ( Naked islets at 5.6 mM glucose, naked islets at 16.7 mM glucose, PEGylated islets at 5.6 mM glucose, PEGylated islets at 16.7 mM glucose, encapsulated islets at 5.6 mM glucose, and encapsulated islets at 16.7 mM glucose) (*** shows the significant difference between insulin secretion in the presence of 16.7 mM and 5.6 mM glucose).