ASTRID & HANNS-FRIEDER MICHLER / SCIENCE PHOTO LIBRARY ASTRID & HANNS-FRIEDER MICHLER / SCIENCE PHOTO LIBRARY
Diabetic pancreas. Light micrograph of a section through the pancreas of a person suffering from diabetes mellitus. This condition (commonly known as simply "diabetes") is caused by the pancreas failing to produce the hormone insulin, which helps to regulate blood sugar levels. Insulin is normally produced in the islets of Langerhans, but here the white spaces show the breakdown of the islets. The dark purple areas are cells which release digestive juices into the duodenum, and are unaffected by diabetes. Diabetics must have regular injections of insulin to keep blood sugar at safe levels. Magnification: x50 at 35mm size.
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