The pancreas is a vital organ located in the abdomen. One of the functions of the pancreas is to regulate blood sugar levels by producing insulin, which reduces blood glucose levels. More precisely, insulin is secreted by the beta cells of the pancreas. These cells are grouped into clusters called “islets of Langerhans”. In people with Type 1 diabetes, these cells are destroyed, causing the pancreas to produce insufficient amounts of insulin or to produce no insulin at all.