Insulin-producing beta cells in the islet of Langerhans. (IMAGE) Helmholtz Munich (Helmholtz Zentrum München Deutsches Forschungszentrum für Gesundheit und Umwelt (GmbH)) Caption Insulin-producing beta cells in the islet of Langerhans. Credit Helmholtz Munich | ©Erik Bader Usage Restrictions Helmholtz Munich | ©Erik Bader License Licensed 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.