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
Eccrine sweat gland sweat than normal. Similarly, cystic fibrosis patients also produce salty sweat. But in these cases, the problem is in the CFTR chloride transporter that is also located on the apical membrane of eccrine gland ducts. Dermcidin is a newly isolated antimicrobial peptide produced by the eccrine sweat glands. Eccrine sweat gland Eccrine glands (; from "ekkrinein" "secrete"; sometimes called merocrine glands) are the major sweat glands of the human body, found in virtually all skin, with the highest density in palm and soles, then on the head, but much less on the trunk and the extremities. In other mammals, they