Epsilon cell Epsilon cell Epsilon cells (ε-cells) are endocrine cells found in the Islets of Langerhans and produce the hormone ghrelin. They were discovered in mice. In human fetal pancreases, single epsilon cells scattered in primitive exocrine tissue were observed to start aggregating into clusters after gestational week 13. From gestational week 21, epsilon cells were observed around developing islets, forming an almost continuous layer at the rim of the islets. In adult pancreas samples, they remained localized on the mantle of the islets in different amounts. Production of ghrelin with insulin, glucagon, or somatostatin was not detected during development. Co-production with
Ryan Langerhans Ryan Langerhans Ryan David Langerhans (born February 20, 1980) is an American former professional baseball outfielder. Langerhans was drafted in the third round of the 1998 Major League Baseball draft by the Atlanta Braves, and made his debut with them in 2002. He has also played in Major League Baseball for the Oakland Athletics, Washington Nationals, Seattle Mariners, Los Angeles Angels of Anaheim, and Toronto Blue Jays. Langerhans attended Round Rock High School in Round Rock, Texas. During the 1996 season, Langerhans batted .442 and was selected to the All-State team. His next season, 1997, Langerhans batted .427 and was