Microscopy is of paramount importance in diabetes research: Paul Langerhans was the first to describe (1869) Islets based on a light microscopic (LM) evaluation of the pancreas. (Immuno-)EM-analysis of the Islets of Langerhans is an outstanding way to discriminate beta-cells from other endocrine cells: The crystalline appearance of insulin granules makes beta-cells readily distinguishable from […]