Adult pancreatic islets marking senescent beta cells (IMAGE) The Hebrew University of Jerusalem Caption Beta cells (marked in green) in the pancreas are organized in structures termed islets. In most adults, it was found that a subset become senescent and display the marker p16, shown here in red. The image shows a typical islet in an adult pancreas. Scale bar = 50 μm. Credit Nucleic Acids Research Usage Restrictions none License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.