Figure 3: Bone Marrow improved islet viability (A, B) and maintained islet tissue structure (C-F). A, B: Light microscopy images of human islet only culture (A) and islet with BM co-culture (B) for three weeks. Dead cells were stained with trypan blue. C-F: Cell images observed under light microscopy and fluorescent microscopy. Human islets were co-cultured with Bone marrow cells (labeled with PKH26 in red color) in Petri dishes day 1 (C) and day 60 (E). Human islet only cultures in Petri dish on day 1 (D) and day 60 (F). Magnification: 40X.