Alpha cell
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1] Phone:617-632-7753
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Overview
Alpha cells are endocrine cells in the islets of Langerhans of the pancreas. They make up 15-20% of the cells in the islets. They are responsible for synthesizing and secreting the peptide hormone glucagon, which elevates the glucose levels in the blood. In rodents alpha-cells are located in the periphery of the islets, in humans the islet arcitechture is generally less organized and alpha-cells are frequently observed inside the islets as well. In the electron microscope alpha-cells can be identified by their characteristic granules with a large dense core and a small white halo.
Alternative and more common spelling: alpha-cell or α-cell.
See also
External links
Endocrine system > Pancreas - Islets of Langerhans | |
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| A/B | alpha cell (glucagon) • beta cell (insulin) |
| Other | delta cell (somatostatin) • PP cell (pancreatic polypeptide) • epsilon cell (ghrelin) |
Acknowledgement and Attribution Regarding Sources of Content
Some of the initial content on this page may be incorporated in part from copyleft sources in the public domain including wikis such as Wikipedia and AskDrWiki. Drug information for patients came from the The National Library of Medicine. Infectious disease information may have come from the Centers for Disease Control (CDC). Differential Diagnoses are drawn from clinicians as well as an amalgamation of 3 sources: 1.The Disease Database; 2. Kahan, Scott, Smith, Ellen G. In A Page: Signs and Symptoms. Malden, Massachusetts: Blackwell Publishing, 2004:3; 3. Sailer, Christian, Wasner, Susanne. Differential Diagnosis Pocket. Hermosa Beach, CA: Borm Bruckmeir Publishing LLC, 2002:7 .
