Insulin oscillation oscillations. The insulin oscillations are generated by pulsatile release of the hormone from the pancreas. Insulin originates from beta cells located in the islets of Langerhans. Since each islet contains up to 2000 beta cells and there are one million islets in the pancreas it is apparent that pulsatile secretion requires sophisticated synchronization both within and among the islets of Langerhans. Pulsatile insulin secretion from individual beta cells is driven by oscillation of the calcium concentration in the cells. In beta cells lacking contact, the periodicity of these oscillations is rather variable (2-10 min). However, within an islet of Langerhans
Ryan Langerhans between the Double-A Greenville Braves and the Triple-A Richmond Braves. Langerhans was called up by the Braves in September. On September 5, in his second game of the season, Langerhans got his first major league hit coming against the Pittsburgh Pirates. Despite making his major league debut in 2002, Langerhans did not become an everyday big-league player until 2005, getting playing time for the Braves in all three outfield positions. He is part of the group of 18 rookie players nicknamed the "Baby Braves" that Atlanta called up from its minor league system during the 2005 season. Langerhans started 2006